JP7779764B2 - Upper column erection support device and upper column erection support method - Google Patents

Description

This invention relates to an upper column installation support device and an upper column installation support method, for example, to support the installation of upper columns that have been brought in in a lying position.

For example, when constructing a building such as a station above a railway track, the columns of the building may be assembled by connecting upper columns to lower columns that penetrate a deck installed above the track.
At the construction site, the long upper columns are brought onto the deck in a horizontal position, and then the track is closed off before the upper columns are attached to the lower columns. This means that at the construction site, the upper columns must be erected on the deck in a horizontal position.

As a technology to assist in the erection of such upper columns, for example, Patent Document 1 discloses a method in which a column support base equipped with wheels is connected to the lower end of the upper column, and as the upper end of the upper column is lifted, the column support base travels on the deck slab, thereby assisting in the erection of the upper column in a reclined position.

However, in Patent Document 1, the pillar support base moves as the upper end of the upper pillar is lifted, so the upper pillar cannot be erected above the lower pillar. For this reason, in Patent Document 1, after the upper pillar is lifted and erected, the heavy equipment must be rotated to move the upper pillar above the lower pillar.

However, when the erected upper pillar is moved above the lower pillar, there is a risk that the upper pillar will swing significantly as the heavy equipment rotates, which is undesirable from a safety standpoint.

Japanese Patent Application Laid-Open No. 2005-139702

In view of the above-mentioned problems, the present invention aims to provide an upper pillar installation support device and an upper pillar installation support method that can support the installation of an upper pillar by erecting the upper pillar above the lower pillar.

This invention is an upper column installation support device that supports the installation of upper columns that have been brought in while lying down so that their longitudinal direction is approximately horizontal. It comprises a contact part that abuts and supports a supported part attached to the underside of the lower end of the upper column when it is lying down, and a pivot part that is located diagonally above the contact part and pivots the upper column, the upper end of which is lifted on the opposite side from the lower end. The contact part and the pivot part are positioned on either side of the lower column and are placed on the floor surface adjacent to the lower column.

The present invention also provides a method for assisting in the erection of upper columns that have been brought in while lying down so that their longitudinal direction is approximately horizontal, and is characterized by the steps of: abutting a supported portion provided below the lower end of the upper column in the lying state against an abutment portion placed on the floor surface adjacent to the lower column; lifting the upper end of the upper column, whose lower end is supported by the abutment portion, and starting to rotate the upper column around the point of abutment with the abutment portion; and rotating the upper column, whose upper end has been lifted, around a pivot portion that is provided at a position diagonally above the abutment portion across the lower column and placed on the floor surface adjacent to the lower column.

The floor surface may be, for example, a floor slab, a concrete surface, or the ground.
According to the present invention, the upper column erection support device and the upper column erection support method can erect the upper column above the lower column to support the erection of the upper column.

Specifically, because the supported portion of the upper column is supported by the abutting portion, the upper column erection support device and upper column erection support method can rotate the upper column around the point of contact between the supported portion and the abutting portion as the center of rotation when the upper end of the upper column is lifted.

Furthermore, by using a pivot part arranged diagonally above and opposite the abutment part, the upper column installation support device and upper column installation support method can transition the upper column, which rotates around the point of abutment between the supported part and the abutment part, to rotate around the pivot part.
Therefore, the upper column installation support device and upper column installation support method can suppress the swinging of the upper column just before it is erected, since the center of gravity of the rotating upper column does not exceed the center of rotation.

In this way, the abutment part and pivot part that raise the upper column are placed on the floor with the lower column in between, so the upper column erection support device and upper column erection support method can erect the upper column from a reclined position while always positioning the lower end of the upper column above the lower column.

As a result, the upper pillar installation support device and upper pillar installation support method can reduce the rotation distance of the heavy machinery even if the erected upper pillar is misaligned with the lower pillar, thereby suppressing the swaying movement of the erected upper pillar.

Therefore, the upper pole erection support device and upper pole erection support method can erect the upper pole above the lower pole and support the erection of the upper pole. Therefore, the upper pole erection support device and upper pole erection support method can erect the upper pole that has been brought in in a lying position, without, for example, closing the track.

In one aspect of this invention, the supported portion of the upper pillar may be the first supported portion, the abutting portion may be the first abutting portion, and the pivot portion may be configured as a second abutting portion that abuts against and supports a second supported portion provided at the lower end of the upper pillar opposite the first supported portion.

With this configuration, the upper column installation support device can support the upper column, which rotates around the point of contact with the first abutment, with the second abutment as the upper end of the upper column is lifted. Therefore, the upper column installation support device can rotate the upper column around the point of contact with the second abutment.

Furthermore, the upper column installation support device can shift the center of rotation from the first abutment part to the second abutment part with a simple configuration, thereby minimizing weight increase. Therefore, the upper column installation support device can easily install upper columns even on decks installed above railway tracks, for example.

In another aspect of the present invention, the first contact portion and the second contact portion may be connected across the lower pillar.
With this configuration, when the center of rotation of the upper column shifts from the point of contact with the first abutment portion to the point of contact with the second abutment portion, the upper column installation support device can prevent the second abutment portion from moving away from the first abutment portion due to the weight of the upper column.

This allows the upper column erection support device to reliably bring the second supported portion of the upper column, which rotates around the first abutment portion, into contact with the second abutment portion. This allows the upper column erection support device to more safely support the erection of the upper column.

Furthermore, the upper column installation support device makes it easier to install and remove the first and second abutment parts compared to when the first and second abutment parts are not connected, thereby improving work efficiency.

In another aspect of the present invention, the pivoting portion may be configured to pivotally connect a bridge portion extending diagonally upward from one end connected to the abutment portion to a support portion supporting the other end of the bridge portion, and may include a pressing mechanism portion that presses one end of the bridge portion upward.

With this configuration, the upper column erection support device can rotate the upper column around the pivot part by using a pressing mechanism that presses one end of the bridge part upward. In this case, the upper column erection support device can simultaneously rotate the upper column around the point of contact with the abutment part and around the pivot part. This allows the upper column erection support device to efficiently support the erection of the upper column.

Furthermore, because the lower end of the upper column is supported by the abutment, the upper column's swaying movement caused by rotation around the pivot can be reduced. This allows the upper column installation support device to support safer erection of the upper column.

In another aspect of the present invention, a rotation mechanism may be provided that rotates the contact portion and the pivot portion together in the horizontal direction around the lower pillar.
According to this configuration, the upper column erection support device can erect the upper column while rotating the upper column in a rotational direction with the up-down direction as the rotation center.
Alternatively, the upper column installation support device can rotate the erected upper column directly above the lower column, with the vertical direction as the center of rotation.

As a result, the upper column installation support device can easily align the orientation of the upper column with the lower column in the rotational direction around the vertical direction. At this time, because the abutment or pivot part supports the upper column, the upper column installation support device can suppress swaying of the upper column due to rotation around the vertical direction.

In addition, the upper column erection support device can rotate the upper column in a smaller space than when the upper column is laid down and rotated around the vertical direction as the center of rotation. This makes it even easier to erect the upper column above the lower column.

In another aspect of the present invention, a damping mechanism may be provided to reduce the descending speed of the upper column.
Reducing the descent speed of the upper pillar means reducing the descent speed when the lifted upper pillar is lowered, or reducing the falling speed when the upper pillar falls.

This configuration allows the lowering speed when placing the lower pillar on the upper pillar to be gentle, so the upper pillar installation support device can prevent the upper pillar from colliding forcefully with the lower pillar when the lifted upper pillar is lowered and brought into contact with the lower pillar.

Furthermore, even if the upper column should sway, the damping mechanism can reduce the swaying, so the upper column installation support device can prevent damage to the floor surface due to contact with the upper column, for example.
This allows the upper pillar installation support device to improve safety when installing the upper pillars.

This invention provides an upper column erection support device and an upper column erection support method that can erect an upper column above a lower column and support the erection of the upper column.

FIG. 10 is an explanatory diagram illustrating an outline of the upper pillar. An explanatory diagram illustrating the outline of the upper pillars during delivery. FIG. FIG. FIG. 10 is an explanatory diagram illustrating an outline of a supported part attached to an upper column. A front view showing the state in which the lower pillar and the upper pillar are connected by a damper. FIG. 10 is a front view illustrating the process of placing the upper column on the support frame. An explanatory diagram showing the state of the upper column when lifting of the upper end portion begins, as viewed from the front. An explanatory diagram showing the state of the upper pillar during the erection process from a front view. An explanatory diagram illustrating the state of the erected upper pillar from a front view. FIG. 10 is a front view illustrating the process of bringing the upper pillar into contact with the lower pillar. FIG. 10 is a front view showing the appearance of a support frame in a second embodiment. 10A to 10C are explanatory diagrams illustrating the operation of the support frame in the second embodiment. FIG. 11 is an explanatory diagram illustrating an outline of a support frame in a third embodiment. FIG. 10 is an explanatory diagram illustrating an outline of a support frame in a fourth embodiment. 10A to 10C are explanatory diagrams illustrating the operation of the support frame in the fourth embodiment.

One embodiment of the present invention is described below with reference to the drawings.

In this embodiment, a construction support device 5 that supports the construction of an upper column 1 that has been carried in a lying state will be described with reference to FIGS. 1 to 6. FIG.
1 shows an explanatory diagram outlining the upper column 1, FIG. 2 shows an explanatory diagram outlining the upper column 1 during delivery, FIG. 3 shows a front view of the support frame 10, and FIG. 4 shows a plan view of the support frame 10.

Furthermore, Figure 5 is an explanatory diagram outlining the supported part attached to the upper column 1, where Figure 5(a) shows a side view of the upper column 1 in a reclined state, and Figure 5(b) shows a front view of the upper column 1 in a reclined state.
In addition, FIG. 6 shows a front view of the state in which the lower column 2 and the upper column 1 are connected by the damper 23.

Furthermore, the upper side in FIG. 1 corresponds to the upper side in this embodiment, and the lower side in FIG. 1 corresponds to the lower side in this embodiment. The arrow X in the figure indicates the front-to-rear direction of the support cradle 10 (hereinafter referred to as the front-to-rear direction X), and the arrow Y in the figure indicates the width direction of the support cradle 10 (hereinafter referred to as the width direction Y).

First, as shown in Figure 1, the upper column 1 is connected to the upper end of the lower column 2 whose lower end is fixed to a foundation or the like, and forms a steel column 3 of a building such as a station building constructed above a railway track.
As shown in Figure 1, when connected to the lower column 2, the upper column 1 is a tubular steel frame with its longitudinal direction extending vertically, and its cross-sectional shape along the horizontal direction (short side direction) is formed to be approximately rectangular (see Figure 5).

Furthermore, as shown in FIG. 1, four lower erection pieces 1a arranged at the lower end, which is the lower end, and four upper erection pieces 1b arranged at the upper end, which is the upper end, are joined to each outer surface of the upper column 1.
In addition, as shown in FIG. 1, four beam brackets 1c arranged below the upper erection piece 1b are joined to each outer surface of the upper column 1.

As shown in Figure 2, such upper columns 1 are brought onto the deck slab 4 (described later) in a lying position (sideways) so that their longitudinal direction is approximately horizontal, and erection is assisted above the lower columns 2 by the erection support device 5 (described later).

As shown in Figure 1, the lower column 2 is a tubular steel frame extending in the vertical direction, and its cross-sectional shape along the horizontal direction (short side direction) is formed into a roughly rectangular cross-section that is roughly the same size as the upper column 1 (see Figure 4).
As shown in FIG. 1, four upper erection pieces 2a arranged at the upper end, which is the upper end of this lower pillar 2, and four beam brackets 2b arranged below the upper erection piece 2a are joined to each outer surface.

Furthermore, as shown in Figure 1, the floor slab 4, which is the floor portion of the building, is joined to the lower column 2 between the upper erection piece 2a and the beam bracket 2b. For this reason, the lower column 2 is arranged so that its upper end protrudes above the floor slab 4.
The deck slab 4 is not shown in detail, but is composed of, for example, a deck plate or a covering plate.

Next, the erection support device 5 that assists in erecting the upper pillar 1 that has been brought in in a lying position will be described in detail.
The construction support device 5 is composed of a support stand 10 (see Figure 2) placed on the deck slab 4 across the lower column 2, a first supported portion 21 and a second supported portion 22 (see Figure 5) attached to the upper column 1, and a pair of dampers 23 (see Figure 6) connecting the upper column 1 to the lower column 2.

As shown in Figures 3 and 4, the support frame 10 is placed on the deck slab 4 so as to straddle the upper end of the lower column 2, and is configured to support one end side, which is the lower end of the upper column 1, above the lower column 2.
As shown in Figures 3 and 4, this support frame 10 comprises a support base 11 that is shaped like a grid when viewed from above, a pair of first support pillars 12 and a pair of second support pillars 13 extending upward from the support base 11, and a frame body 14 supported by the first support pillars 12 and the second support pillars 13.

In detail, as shown in Figures 3 and 4, the support base 11 is configured in a roughly parallel cross shape in a plan view, with a pair of girder portions 111 arranged at a predetermined interval in the front-to-rear direction X, and a pair of beam portions 112 connecting the pair of girder portions 111 in the front-to-rear direction X.
Furthermore, as shown in Figures 3 and 4, the support base 11 has four wheel mechanism units 113 provided at both ends of the girder unit 111 in the width direction Y, and connecting rods 114 connecting opposing wheel mechanism units 113 in the front-to-rear direction X.

Specifically, as shown in Figures 3 and 4, the pair of girders 111 are H-shaped steel beams extending in a predetermined direction, and are arranged at positions separated in the front-to-rear direction X by a distance greater than the outer diameter of the lower column 2, with their longitudinal direction aligned with the width direction Y. The pair of girders 111 are arranged so that their webs face each other in the front-to-rear direction X.

3 and 4, the pair of beams 112 connect the pair of girder sections 111 closer to the center in the width direction Y than the wheel mechanism section 113. As shown in Fig. 3 and 4, the pair of beams 112 are H-shaped steels extending in a predetermined direction, and are arranged at positions separated by a distance in the width direction Y that is larger than the outer shape of the lower column 2, with their longitudinal direction aligned with the front-rear direction X.
The pair of beam portions 112 are arranged so that the webs face each other in the width direction Y.

As shown in FIG. 3, the wheel mechanism 113 includes two wheels 113a arranged side by side in the width direction Y and rotatable about a rotation axis in the front-rear direction X.
As shown in FIGS. 3 and 4, the connecting rod 114 is a round steel rod extending in a predetermined direction, and connects the ends of the wheel mechanism parts 113 in the width direction Y in the front-rear direction X.

As shown in Figure 3, the first support column 12 and the second support column 13 are joined to the upper surface of the girder 111 of the support base 11 at a distance in the width direction Y that is greater than the outer shape of the lower column 2. The first support column 12 and the second support column 13 are formed with a length in the vertical direction sufficient to support the gantry body 14, inclined at an angle of approximately 10 degrees with respect to the width direction Y when viewed from the front.

Specifically, as shown in Figure 3, the pair of first support columns 12 are arranged at one end of the girder 111 in the width direction Y (on the right side in Figure 3), at approximately the same position in the width direction Y as the beam 112. As shown in Figure 3, the first support columns 12 are formed with a vertical length such that their upper ends are located slightly above the upper ends of the lower columns 2.

As shown in Figure 3, the pair of second support columns 13 are arranged at approximately the same position in the width direction Y as the beam column 112 on the other end side (left side in Figure 3) of the girder column 111 in the width direction Y. As shown in Figure 3, the second support columns 13 are formed with a longer vertical length than the first support columns 12.

As shown in Figures 3 and 4, the mount body 14 is composed of a pair of bridge sections 141 spanning the first support section 12 and the second support section 13, a pair of connecting sections 142 connecting the pair of bridge sections 141 in the forward/backward direction X, and a plurality of first abutment sections 143 and second abutment sections 144 erected on the upper surfaces of the connecting sections 142.

Specifically, as shown in Figures 3 and 4, the pair of bridge sections 141 are H-shaped steel beams extending in a predetermined direction, and are arranged so that their longitudinal direction coincides with the width direction Y. The pair of bridge sections 141 are also arranged so that their webs face each other in the fore-and-aft direction X.

As shown in Figure 3, the pair of connecting sections 142 are H-shaped steel beams extending in a predetermined direction, connecting the pair of bridge sections 141 at positions spaced apart in the fore-and-aft direction X by a distance greater than the outer diameter of the lower column 2. The pair of connecting sections 142 are positioned so that the webs face each other in the width direction Y.

More specifically, as shown in Figures 3 and 4, one of the pair of connecting portions 142 connects the pair of bridge portions 141 closer to the second support portion 13 than the first support portion 12, and the other connecting portion 142 connects the pair of bridge portions 141 at approximately the same position as the second support portion 13.

As shown in FIGS. 3 and 4, the first contact portions 143 are joined to the upper surface of the connecting portion 142 on the first support portion 12 side at predetermined intervals in the front-rear direction X.
3 and 4, the first contact portion 143 is a plate-like member having a thickness in the front-rear direction X, and has a notched portion 143a at its upper end that is recessed downward into a generally semicircular shape when viewed from the front. The notched portion 143a is formed as a portion against which the first supported portion 21 provided on the upper column 1 comes into contact in order to erect the upper column 1.

As shown in Figures 3 and 4, multiple second abutment portions 144 are joined to the upper surface of the connecting portion 142 on the second support portion 13 side at predetermined intervals in the front-to-rear direction X. These second abutment portions 144 are supported at their lower ends by the first abutment portions 143, and are provided as pivot portions that rotate the upper column 1, whose upper end is lifted, about a position diagonally above the first abutment portions 143.

Specifically, as shown in Figures 3 and 4, the second abutment portion 144 is plate-shaped with a thickness in the front-to-rear direction X, and is formed with a notched portion 144a at its upper end that is recessed downward into a roughly semicircular shape when viewed from the front. This notched portion 144a is formed as the portion against which the second supported portion 22 provided on the upper pillar 1 abuts in order to erect the upper pillar 1.

Furthermore, as shown in Figure 5, the first supported portion 21 and second supported portion 22 provided on the upper column 1 are steel round bars extending in a predetermined direction, and are arranged opposite each other at a distance approximately equal to the distance between the first abutment portion 143 and the second abutment portion 144 along the longitudinal direction of the bridge portion 141.

Specifically, as shown in FIG. 5, the first supported portion 21 is arranged below the upper column 1 with the upper column 1 laid down so that the longitudinal direction is approximately horizontal, and is fixed to the lower erection piece 1a protruding downward via the mounting member 24.
As shown in FIG. 5A, the first supported portion 21 is disposed so that its axial direction coincides with the front-rear direction X.

In addition, as shown in FIG. 5, the second supported portion 22 is arranged above the upper column 1 when the upper column 1 is laid so that the longitudinal direction is approximately horizontal, and is fixed to the lower erection piece 1a protruding upward via the mounting member 24.
As shown in FIG. 5A, the second supported portion 22 is disposed so that its axial direction coincides with the front-rear direction X.

The mounting member 24 is a plate that holds the lower erection piece 1a, as shown in Figure 5, with one end fixed to the lower erection piece 1a and the other end joined to the first supported part 21 or the second supported part 22.

The pair of dampers 23 connecting the upper column 1 to the lower column 2 are, for example, hydraulic dampers consisting of a cylindrical section and a piston rod, and are provided to support the downward load that increases as the column is erected, as well as to suppress the speed at which the upper column 1 descends.

Of the pair of dampers 23, one damper 23 connects the front surface of the upper column 1 to the front surface of the lower column 2, and the other damper 23 connects the back surface of the upper column 1 to the back surface of the lower column 2.
Specifically, as shown in FIG. 6, the upper end (cylindrical part) of the damper 23 is attached to the lower erection piece 1a of the upper column 1 via the upper column mounting member 25, and the lower end (piston rod) is attached to the upper erection piece 2a of the lower column 2 via the lower column mounting member 26.
The upper and lower ends of the damper 23 are connected to an upper column mounting member 25 and a lower column mounting member 26, respectively, in a state in which they can rotate freely around the rotation axis in the front-rear direction X.

Next, the process of erecting the upper pillar 1 in a reclined state and connecting it to the lower pillar 2 using the erection support device 5 having the above-described configuration will be described with reference to FIGS. 7 to 11.
Note that Figure 7 shows an explanatory diagram from a front view illustrating the process of placing the upper column 1 on the support frame 10, and Figure 8 shows an explanatory diagram from a front view illustrating the state of the upper column 1 once lifting of the upper end has begun.

Furthermore, Figure 9 shows an explanatory diagram from a front view illustrating the state of the upper pillar 1 during the erection process, Figure 10 shows an explanatory diagram from a front view illustrating the state of the erected upper pillar 1, and Figure 11 shows an explanatory diagram from a front view illustrating the process of bringing the upper pillar 1 into contact with the lower pillar 2.

First, as shown in Figure 2, a worker lifts the support platform 10 using a chain block or crane and places it on the deck slab 4 so that it straddles the upper ends of the lower columns 2. At this time, the worker adjusts the position so that the lower columns 2 are positioned approximately in the center of the support base 11 in a plan view, as shown in Figure 4, and then places the support platform 10 on the deck slab 4.

Thereafter, the worker restricts the movement of the support cradle 10 by chocks or the like on the wheels 113 a, and completes the installation of the support cradle 10 .
Once the support frame 10 is installed, a worker uses heavy machinery such as a crane to lift the upper column 1, which has already been fitted with the first supported portion 21 and the second supported portion 22, while keeping it lying down, to a height that is not too far away from the support frame 10, as shown in Figure 2.

Furthermore, as shown in Figure 2, the worker horizontally moves the upper column 1 in a reclined position so that the upper column 1 is positioned on the first abutment portion 143 side of the support frame 10 and the first supported portion 21 of the upper column 1 is positioned above the first abutment portion 143.

When the upper column 1 is moved horizontally, the worker lowers the upper column 1 in a lying position, as shown in Figure 7, and places the first supported portion 21 of the upper column 1 on the cutout portion 143a of the first abutment portion 143 so that it abuts against it.
The vicinity of the beam bracket 1c of the upper column 1 is supported by an appropriate jig 6 placed on the deck slab 4 in advance, as shown in FIG.

Then, as shown in Figure 6, the worker connects the lower column 2 and the upper column 1 with the damper 23, and connects the wire for lifting the upper end of the upper column 1 to the upper erection piece 1b of the upper column 1, completing preparations for lifting the upper column 1.

Once the preparation for lifting the upper pole 1 is complete, the worker begins lifting the upper end of the upper pole 1 using heavy machinery such as a crane, as shown in Figure 8.
When the upper end is lifted, the upper column 1 begins to rotate counterclockwise when viewed from the front, with the upper end facing upward, around the point of contact between the first abutment portion 143 of the support frame 10 and the first supported portion 21 of the upper column 1 as the center of rotation, as shown in Figure 8.

At this time, as shown in Figures 6, 8, and 9, the connection points of the damper 23 to the upper column 1 and the lower column 2 rotate in response to the rotation of the upper column 1, and also contract in response to the rotation of the upper column 1, thereby absorbing the downward load component that increases as the upper column 1 rises.

Thereafter, as the lifting of the upper end portion progresses, the second supported portion 22 of the upper column 1 comes into contact with the second abutment portion 144 of the support frame 10 so as to be placed on the second abutment portion 144, as shown in FIG.
As the lifting of the upper end portion progresses further, the upper column 1 rotates counterclockwise when viewed from the front, with the point of contact between the second abutment portion 144 and the second supported portion 22 as the center of rotation, so that the upper end portion of the upper column 1 faces in the width direction Y, as shown in Figures 9 and 10.

The worker operating the heavy equipment lifts the upper end of the upper pillar 1, which rotates around the point of contact between the second abutment portion 144 and the second supported portion 22, until it stands up, and then stops lifting the upper pillar 1.
At this time, the upper column 1 is in an upright position with its longitudinal direction being approximately vertical, at a position slightly offset in the width direction Y relative to the lower column 2, as shown in FIG.

Then, with the upper column 1 lifted, the worker removes the dampers 23 from the upper column 1 and the lower column 2, and then removes the support frame 10 from the deck slab 4 using a chain block or the like.
Furthermore, as shown in Figure 11, the worker removes the first supported portion 21 and the second supported portion 22 from the upper pillar 1 together with the mounting member 24, and then slightly rotates the heavy equipment to position the upper pillar 1 directly above the lower pillar 2.

After moving the upper column 1 directly above the lower column 2, the worker lowers the upper column 1 until it abuts the upper end of the lower column 2, and then connects the lower erection piece 1a of the upper column 1 and the upper erection piece 1b of the lower column 2 using appropriate parts.

Then, the worker joins the lower column 2 and the upper column 1 by welding to form the steel column 3.
In this way, the erection support device 5 of Example 1 makes it possible to erect the upper pillar 1 in a lying position above the lower pillar 2, thereby supporting the erection of the upper pillar 1.

As described above, the upper column 1 installation support device 5 in Example 1 is a device that supports the installation of the upper column 1 that has been brought in lying down so that its longitudinal direction is approximately horizontal.
This upper column 1 erection support device 5 is equipped with a first abutment portion 143 that supports by abutting the first supported portion 21 provided below the lower end of the upper column 1 when it is laid down.

Furthermore, the installation support device 5 for the upper column 1 is provided at a position diagonally above the first abutment portion 143 and is equipped with a pivot portion (second abutment portion 144) that pivots the upper column 1 whose upper end portion opposite the lower end portion is lifted.
The first abutment portion 143 and the pivot portion (second abutment portion 144) are arranged on either side of the lower column 2 and are placed on the deck slab 4 adjacent to the lower column 2.

In addition, the method for supporting the erection of the upper column 1 in Example 1 is a method for supporting the erection of the upper column 1 that has been brought in lying down so that its longitudinal direction is approximately horizontal.
This method of supporting the erection of the upper column 1 involves a process of abutting the first supported portion 21 provided on the underside of the lower end of the upper column 1 when it is laid down against the first abutment portion 143 placed on the deck slab 4 adjacent to the lower column 2.

Furthermore, the method for supporting the erection of the upper column 1 involves lifting the upper end of the upper column 1, the lower end of which is supported by the first abutment portion 143, and then starting to rotate the upper column 1 around the point of abutment with the first abutment portion 143.

Then, the method for supporting the erection of the upper column 1 involves rotating the upper column 1, with its upper end lifted, around a pivot (second abutment 144) that is positioned diagonally above the first abutment 143 across the lower column 2 and placed on the deck slab 4 adjacent to the lower column 2.

According to this configuration, the upper column 1 erection support device 5 and the upper column 1 erection support method can erect the upper column 1 above the lower column 2 and support the erection of the upper column 1.
Specifically, since the first supported portion 21 of the upper column 1 is supported by the first abutment portion 143, the installation support device 5 for the upper column 1 and the installation support method for the upper column 1 can rotate the upper column 1 around the point of contact between the first supported portion 21 and the first abutment portion 143 as the center of rotation when the upper end of the upper column 1 is lifted up.

Furthermore, by using a pivot part (second abutment part 144) positioned diagonally above and opposite the first abutment part 143, the upper column 1 erection support device 5 and upper column 1 erection support method can transition the upper column 1, which rotates around the point of contact between the first supported part 21 and the first abutment part 143, to rotate around the pivot part (second abutment part 144).

For this reason, the upper column 1 erection support device 5 and upper column 1 erection support method prevent the center of gravity of the rotating upper column 1 from exceeding the center of rotation, thereby suppressing the swinging of the upper column 1 immediately before erection.

In this way, the first abutment portion 143 and the pivot portion (second abutment portion 144) that raise the upper column 1 are placed on the deck slab 4 with the lower column 2 in between, so the upper column 1 erection support device 5 and upper column 1 erection support method can erect the upper column 1 in a reclined position while always positioning the lower end of the upper column 1 above the lower column 2.

As a result, the upper column 1 installation support device 5 and upper column 1 installation support method can reduce the rotation distance of the heavy machinery even if the erected upper column 1 is misaligned with respect to the lower column 2, thereby suppressing the swaying movement of the erected upper column 1.

Therefore, the upper pole 1 erection support device 5 and upper pole 1 erection support method can erect the upper pole 1 above the lower pole 2, supporting the safe erection of the upper pole 1. Therefore, the upper pole 1 erection support device 5 and upper pole 1 erection support method can erect the upper pole 1 that has been brought in in a lying position, without, for example, closing the track.

The pivot part is also composed of a second abutment part 144 that abuts and supports the second supported part 22, which is provided at the lower end of the upper column 1 opposite the first supported part 21.

With this configuration, the setup support device 5 for the upper column 1 can support the upper column 1, which rotates around the point of contact with the first abutment portion 143, with the second abutment portion 144 as the upper end of the upper column 1 is lifted. Therefore, the setup support device 5 for the upper column 1 can rotate the upper column 1 around the point of contact with the second abutment portion 144.

Furthermore, the upper column 1 installation support device 5 can shift the center of rotation from the first abutment part 143 to the second abutment part 144 with a simple configuration, thereby minimizing weight increase. Therefore, the upper column 1 installation support device 5 can easily install the upper column 1 even on a deck slab 4 installed above the tracks.

In addition, the first abutment portion 143 and the second abutment portion 144 are connected across the lower pillar 2.
With this configuration, when the center of rotation of the upper column 1 shifts from the point of contact with the first abutment portion 143 to the point of contact with the second abutment portion 144, the installation support device 5 for the upper column 1 can prevent the second abutment portion 144 from moving away from the first abutment portion 143 due to the weight of the upper column 1.

As a result, the upper column 1 erection support device 5 can reliably bring the second supported portion 22 of the upper column 1, which rotates around the first abutment portion 143, into contact with the second abutment portion 144. As a result, the upper column 1 erection support device 5 can more safely support the erection of the upper column 1.

Furthermore, the installation support device 5 for the upper column 1 makes it easier to install and remove the first abutment portion 143 and the second abutment portion 144 than when the first abutment portion 143 and the second abutment portion 144 are not connected, thereby improving work efficiency.

In addition, the installation support device 5 for the upper column 1 is equipped with a damper 23 that reduces the descent speed of the upper column 1.
With this configuration, the lower column 2 can be lowered at a slower speed when placed on the upper column 1, so that the installation support device 5 for the upper column 1 can prevent the upper column 1 from colliding forcefully with the lower column 2 when the lifted upper column 1 is lowered to abut against the lower column 2.

Furthermore, even if the upper column 1 should sway, the swaying can be reduced by the damper 23, so the installation support device 5 for the upper column 1 can prevent damage to the deck slab 4 due to contact with the upper column 1, for example.
As a result, the upper column 1 installation support device 5 can improve safety when installing the upper column 1.

A construction support device 5 of Example 2, which has a different support frame configuration from the construction support device 5 of Example 1 described above, will be described with reference to FIGS. 12 and 13. FIG.
FIG. 12 shows a front view of the support frame 30 in the second embodiment.

Furthermore, Figure 13 is an explanatory diagram illustrating the operation of the support stand 30 in Example 2, where Figure 13(a) shows a front view of the hydraulic jack 31 in a lowered state, and Figure 13(b) shows a front view of the hydraulic jack 31 in a raised state.
Furthermore, the same components as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

As shown in Figure 12, the support frame 30 of Example 2 includes a support base 11 that is placed on the deck slab 4, and a frame body 14 that is positioned above the support base 11 and inclined relative to the support base 11.

As shown in Figure 12, the support stand 30 of Example 2 includes a pair of hydraulic jacks 31 that support the stand main body 14, a pair of support pillars 32, and a pivot part 33 that rotatably connects the bridge part 141 of the stand main body 14 to the support pillars 32.
As shown in FIG. 12, the gantry body 14 of the second embodiment does not have the second contact portion 144 of the first embodiment.

More specifically, as shown in Figure 12, the hydraulic jack 31 is fixed to the upper surface of the support base 11 in place of the first support column 12 in Example 1, and its upper end is connected to a guide rail 14a provided on the underside of the frame body 14. The guide rail 14a is formed in the shape of a plate with a long, oblong opening extending along the longitudinal direction of the bridge section 141.

As shown in Figure 12, this hydraulic jack 31 is configured so that its vertical length in its most retracted state is approximately the same as that of the first support column 12 in Example 1. Furthermore, the hydraulic jack 31 is configured to be able to expand and contract in the vertical direction using, for example, a hydraulic pump provided separately from the support frame 30, and to press the connected frame body 14 upward from below.

12, the support column 32 is fixed to the upper surface of the support base 11 in place of the second support column 13 of the first embodiment. The support column 32 is formed with a length in the vertical direction that supports the gantry body 14 from below in an inclined state.
12, the pivot part 33 rotatably connects the gantry main body 14 at the upper end of the support part 32 with the front-rear direction X as the center of rotation. The pivot part 33 is configured, for example, by connecting the upper end of the support part 32 and a flange provided on the underside of the bridge part 141 of the gantry main body 14 with a shaft.

Next, a process of erecting the upper pillar 1 in a reclined position and connecting it to the lower pillar 2 using the erection support device 5 having the above-described configuration will be described.
In Example 2, only the first supported portion 21 is attached to the upper column 1 via the attachment member 24 .

First, as in Example 1, a worker uses heavy machinery such as a crane to place the first supported portion 21 of the upper column 1, which is in a laid-down position, on the first abutment portion 143 of the support stand 30, which is positioned across the lower column 2.

After that, when the upper end of the upper pillar 1 is lifted by heavy machinery, the upper pillar 1 begins to rotate counterclockwise as viewed from the front, with the upper end pointing upward, around the point of contact between the first abutment portion 143 and the first supported portion 21 as the center of rotation, as shown in Figure 13(a).

Once the upper end of the upper pillar 1 has been lifted up to a point where its longitudinal direction is inclined relative to the width direction Y, the worker activates the hydraulic jack 31 to push the first abutment portion 143 upward via the bridge portion 141.

At this time, as shown in Figures 13(a) and 13(b), the support frame 30 rotates counterclockwise when viewed from the front, with the pivot 33 as the center of rotation, so that the first abutment portion 143 faces upward. As a result, as the upper end of the upper column 1 is lifted, it rotates around the point of abutment with the first abutment portion 143, and is erected while rotating around the pivot 33.

Then, the upper column 1 is lifted up at a position slightly offset in the width direction Y from the lower column 2 until it is in an upright position with its longitudinal direction approximately vertical. The worker then joins the lower end of the upper column 1 to the upper end of the lower column 2 in the same manner as in Example 1, thereby forming the steel column 3.

As described above, the upper column 1 erection support device 5 and upper column 1 erection support method in Example 2 have the first abutment portion 143 and pivot portion 33 positioned opposite each other across the lower column 2 and placed on the deck slab 4 adjacent to the lower column 2, thereby achieving the same effects as those in Example 1 described above.

The pivoting portion 33 pivotally connects the bridge portion 141, which extends diagonally upward from one end connected to the first abutment portion 143, to the support portion 32, which supports the other end of the bridge portion 141. The erection support device 5 for the upper column 1 is also equipped with a hydraulic jack 31 that presses one end of the bridge portion 141 upward.

With this configuration, the hydraulic jack 31 presses upward on one end of the bridge section 141, allowing the erection support device 5 for the upper column 1 to rotate the upper column 1 around the pivot section 33.

At this time, the upper column 1 erection support device 5 can simultaneously rotate the upper column 1 around the point of contact with the first abutment portion 143 and around the pivot portion 33. As a result, the upper column 1 erection support device 5 can efficiently support the erection of the upper column 1.

Furthermore, because the lower end of the upper column 1 is supported by the first abutment portion 143, the setup support device 5 for the upper column 1 can suppress swaying of the upper column 1 that occurs when the column rotates around the pivot portion 33. As a result, the setup support device 5 for the upper column 1 can support safer erection of the upper column 1.

A construction support device 5 of Example 3, which has a different support frame configuration from the construction support device 5 of Example 1 described above, will be described with reference to FIG. 14 .
14A and 14B are explanatory diagrams for explaining an outline of the support frame 40 in the third embodiment, with FIG. 14A showing a front view of the support frame 40 and FIG. 14B showing a plan view of the support frame 40.
Furthermore, the same components as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

As shown in Figures 14(a) and 14(b), the support cradle 40 of Example 3 comprises a support base 11 and a cradle main body 14 that is arranged above the support base 11 and supported by a first support column 12 and a second support column 13.
Furthermore, as shown in FIG. 14, the support base 40 of the third embodiment is provided with a rotating base portion 41 on the upper surface of the support base 11, which is rotatable around a rotation axis in the vertical direction.

As shown in Figures 14(a) and 14(b), the rotating base 41 has a generally circular shape in plan view and is composed of a lower base part 41a that is fixed to the support base 11 and an upper base part 41b that is fixed to the first support column 12 and the second support column 13, stacked vertically.

Furthermore, the rotating base unit 41 is configured so that the upper base unit 41b and the lower base unit 41a can rotate relative to each other with the vertical direction as the rotation axis. The rotating base unit 41 is equipped with an appropriate switching means for switching between a state in which the upper base unit 41b and the lower base unit 41a can rotate relative to each other and a state in which they cannot rotate relative to each other.

Next, a brief description will be given of the process of erecting the upper pillar 1 in a reclined state and connecting it to the lower pillar 2 using the erection support device 5 configured as described above.
As an example, the support frame 40 is placed on the deck slab 4 in a state where the juxtaposition direction of the first abutment portion 143 is not approximately parallel to the outer surface of the lower column 2.

First, as in Example 1, a worker uses heavy machinery such as a crane to place the first supported portion 21 of the upper column 1, which is in a laid-down position, on the first abutment portion 143 of the support stand 40, which is positioned across the lower column 2.

Then, when the upper end of the upper pillar 1 is lifted by heavy machinery, the upper pillar 1 rotates counterclockwise as viewed from the front around the point of contact between the first supported portion 21 and the first abutment portion 143, as in Example 1, and then rotates counterclockwise as viewed from the front around the point of contact between the second supported portion 22 and the second abutment portion 144, and is erected.

Then, when the second supported portion 22 and the second abutting portion 144 are in contact and the longitudinal direction of the upper column 1 is in an upright position that is approximately vertical, the worker rotates the rotating base portion 41 to adjust the orientation of the upper column 1 in the rotational direction with the vertical direction as the center of rotation, and align it with the lower column 2.
Thereafter, the worker joins the lower end of the upper column 1 to the upper end of the lower column 2 in the same manner as in Example 1 to form the steel column 3.

As described above, the upper column 1 erection support device 5 and upper column 1 erection support method in Example 3 can achieve the same effects as those in Example 1 described above, because the first abutment portion 143 and the second abutment portion 144 are arranged opposite each other across the lower column 2 and are placed on the deck slab 4 adjacent to the lower column 2.

Furthermore, since the rotating base 41 allows the first abutment portion 143 and the second abutment portion 144 to rotate together in the horizontal direction around the lower column 2, the upper column 1 installation support device 5 can rotate the erected upper column 1 directly above the lower column 2, with the vertical direction as the center of rotation.

As a result, the setup support device 5 for the upper column 1 can easily align the orientation of the upper column 1 with the orientation of the lower column 2 in the rotational direction around the vertical direction as the center of rotation. At this time, because the first abutment portion 143 or the pivot portion supports the upper column 1, the setup support device 5 for the upper column 1 can suppress swaying of the upper column 1 due to rotation around the vertical direction as the center of rotation.

In addition, the upper column 1 erection support device 5 can rotate the upper column 1 in a smaller space than when the upper column 1 is laid down and rotated around the vertical direction as the center of rotation. Therefore, the upper column 1 erection support device 5 makes it even easier to erect the upper column 1 above the lower column 2.

15 and 16, a construction support device 5 of Example 4, which is different from the construction support device 5 of Example 1 described above and which makes it easier to install a support frame on the deck slab 4 and remove the support frame from the deck slab 4, will be described.
15A and 15B are explanatory diagrams for explaining an outline of the support frame 50 in the fourth embodiment, with FIG. 15A showing a front view of the support frame 50 and FIG. 15B showing a plan view of the support frame 50.
Furthermore, FIG. 16 is an explanatory diagram for explaining the operation of the support frame 50 in the fourth embodiment.

Furthermore, the same components as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.
In the description, the direction toward the right in FIG. 15A is one side of the width direction Y, and the direction toward the left in FIG. 15A is the other side of the width direction Y.

First, as shown in FIG. 15, two lower erection pieces 1a are joined to the outer surfaces of the lower end portions of the upper pillars 1 of Example 4.
Similarly, as shown in FIG. 15, two upper erection pieces 2a are joined to the outer surfaces of the lower ends of the lower pillars 2 of Example 4.

In addition, the construction support device 5 in Example 4 is equipped with a first supported portion 21 and a second supported portion 22 attached to the upper column 1, and a support stand 50 placed on the deck slab 4 across the lower column 2.
In addition, the first supported portion 21 and the second supported portion 22 are round rods extending in the front-rear direction X, as in the first embodiment, and are fixed to the lower erection piece 1a via mounting members 27.

As shown in Figures 15 and 16, the support frame 50 is configured in a grid shape in plan view by combining multiple H-shaped steel beams extending in a predetermined direction, and at least one side in the width direction Y can be opened and closed by rotating the H-shaped steel beams extending in the front-to-rear direction X.

As shown in Figures 15(a) and 15(b), this support frame 50 comprises a pair of lower girders 51, a pair of middle girders 52, and a pair of upper girders 53 extending in the width direction Y at a predetermined distance in the front-to-rear direction X, and a pair of lower beams 54 and a pair of upper beams 55 extending in the front-to-rear direction X at a predetermined distance in the width direction Y.

Furthermore, as shown in Figures 15(a) and 15(b), the support frame 50 has a plurality of connecting plate portions 56 that connect the lower girder portion 51 and the middle girder portion 52 in the vertical direction, and a plurality of first abutment portions 143 and second abutment portions 144 that are erected on the upper surface of the upper beam portion 55.
Specifically, as shown in Figure 15 (a), a pair of lower girder sections 51 are arranged so that their longitudinal direction is the width direction Y, and wheel mechanism sections 113 are fixed to the undersides at both ends in the width direction Y.

As shown in Figure 15(a), the pair of middle girders 52 are positioned above the lower girders 51 at a predetermined distance, with their longitudinal direction aligned with the width direction Y. The middle girders 52 are formed so that their longitudinal length is slightly shorter than that of the lower girders 51.

Furthermore, as shown in Figure 15(b), a flat plate (reference number omitted) protruding in the front-to-rear direction X is joined to one end of the upper flange of the middle girder section 52 in the width direction Y. Of the flat plates of this middle girder section 52, the one protruding in a direction away from the other middle girder section 52 has two through holes 52a (see Figures 15 and 16) spaced a predetermined distance apart in the width direction Y.

On the other hand, the flat plate of the middle girder section 52 that protrudes toward the other middle girder section 52 has a generally oblong slide hole 52b extending in the width direction Y in approximately the same range in the width direction Y as the two through holes 52a, as shown in Figure 15(b).

As shown in Figure 15(a), the pair of upper girders 53 are arranged on the upper surface of the middle girders 52 on the other side in the width direction Y, with their longitudinal direction aligned with the width direction Y. The upper girders 53 are formed with a length in the width direction Y that extends from a position on the other side in the width direction Y of the lower columns 2 to the edge of the middle girders 52.

Furthermore, as shown in Figure 15(b), a flat plate (reference number omitted) protruding in the fore-and-aft direction X is joined to the upper flange of the upper girder portion 53. Of the flat plates of this upper girder portion 53, the flat plate protruding in a direction away from the other upper girder portion 53 has two through holes 53a opened and spaced a predetermined distance apart in the width direction Y.

On the other hand, the flat plate of the upper girder section 53 that protrudes toward the other upper girder section 53 has a slide hole 53b that is approximately oblong and extends in the width direction Y, in approximately the same range in the width direction Y as the two through holes, as shown in Figure 15(b).

15(a) and 15(b), the pair of lower beams 54 are arranged between the upper surface of the lower girder 51 and the lower surface of the middle girder 52 so that their longitudinal direction is in the front-to-rear direction X. The pair of lower beams 54 are arranged at the ends of the middle girder 52 in the width direction Y.
As shown in Figure 15 (b), this lower beam portion 54 is fastened to the upper flange of the lower girder portion 51 and the lower flange of the middle girder portion 52 using four bolts 57 each.

Furthermore, as shown in Figures 15(a) and 15(b), one upper beam section 55 is placed on the upper surface of the middle girder section 52, and the other upper beam section 55 is placed on the upper surface of the upper girder section 53, with the longitudinal direction of the upper beam section 55 aligned with the front-to-rear direction X.

As shown in Figure 15(b), flat mounting plates (reference numerals omitted) are joined to the underside of both ends of the upper beam section 55 in the front-to-rear direction X. These mounting plates abut the upper surfaces of the middle girder section 52 and the upper girder section 53. Furthermore, insertion holes (reference numerals omitted) through which bolts 58 are inserted are formed at the ends of the mounting plates in the width direction Y at predetermined intervals in the front-to-rear direction X.

As shown in Figure 15(b), the upper beam section 55 placed on the middle girder section 52 has a mounting plate fastened to the other end of the through hole 52a and slide hole 52b located on the other side in the width direction Y using bolts 58.

On the other hand, as shown in Figure 15 (b), the upper beam portion 55 placed on the upper girder portion 53 has an attachment plate fastened to one end of the through hole 53a and slide hole 53b located on one side in the width direction Y using a bolt 58.
In addition, as shown in Figure 15 (a), the multiple connecting plate portions 56 connect the upper surface of the lower girder portion 51 and the lower surface of the middle girder portion 52 in the vertical direction, on the inside in the width direction Y (towards the lower column 2) of the lower beam portion 54.

As shown in FIG. 15 , a plurality of first abutment portions 143 are erected along the front-rear direction X on the upper surface of the upper beam portion 55 placed on the middle girder portion 52 .
On the other hand, as shown in FIG. 15 , a plurality of second abutment portions 144 are provided upright along the front-rear direction X on the upper surface of the upper beam portion 55 placed on the upper girder portion 53 .

In the erection support device 5 of Example 4 equipped with such a support frame 50, the support frame 50 is placed on the deck slab 4, straddling the lower columns 2, just like in Example 1, and supports erecting the upper columns 1 in a reclined position through the same process as in Example 1.

Furthermore, the construction support device 5 of Example 4 allows the support platform 50 to be installed on the deck slab 4 and removed from the deck slab 4 by moving the support platform 50 while traveling in the width direction Y on the deck slab 4. At this time, the worker rotates the lower beam portion 54 and upper beam portion 55 on one side in the width direction Y, allowing the support platform 50 placed across the lower columns 2 to be moved.

More specifically, the worker first places the lower beam section 54, which is positioned on one side in the width direction Y, in a rotatable state, as shown in Figure 16. Specifically, the worker removes all of the bolts 57 that secure the lower beam section 54 on one side in the front-to-rear direction X (the lower side in Figure 16).

Furthermore, as shown in Figure 16, of the bolts 57 securing the other side of the lower beam portion 54 in the front-to-rear direction X (the upper side in Figure 16), the worker loosens the bolt 57 located furthest outward in the width direction Y and furthest to the other side in the front-to-rear direction X, and removes the other bolts 57.

Next, as shown in Figure 16, the worker places the upper beam section 55, which is placed on one side in the width direction Y, i.e., on the top surface of the middle girder section 52, in a rotatable state. Specifically, of the bolts 58 securing the upper beam section 55, the worker removes the bolt 58 fastened to the through hole 52a and loosens the bolt 58 fastened to the slide hole 52b.

Thereafter, the worker moves the upper beam portion 55 along the slide hole 52b to one side in the width direction Y, as shown in FIG.
At this time, the worker slides the upper beam portion 55 so that the insertion hole provided in the mounting plate is aligned with the through hole 52a located furthest to one side in the width direction Y out of the two through holes 52a.

After sliding the upper beam section 55, the worker connects the mounting plate of the upper beam section 55 located on one side in the front-to-rear direction X to the through-hole 52a located on the furthest side in the width direction Y using bolts 58, as shown in Figure 16, and then removes all bolts 58 inserted into the slide holes 52b. At this time, the worker installs the bolts 58 in the through-holes 52a in a loosened state.

Then, as shown in Figure 16, the worker rotates the lower beam portion 54 toward one side in the width direction Y around the bolt 57, and rotates the upper beam portion 55 toward one side in the width direction Y around the bolt 58, thereby opening one side of the support frame 50 in the width direction Y.
After opening one side of the support frame 50 in the width direction Y, the worker moves the support frame 50 placed on the deck slab 4 in the width direction Y.

In this way, the erection support device 5 of Example 4 makes it possible to erect the upper column 1, which is lying down above the lower column 2, thereby supporting the erection of the upper column 1 and facilitating the installation of the support frame 50 on the deck slab 4 and the removal of the support frame 50 from the deck slab 4.

As described above, the upper column 1 installation support device 5 and upper column 1 installation support method in Example 4 can achieve the same effects as those in Example 1 described above, because the first abutment portion 143 and the second abutment portion 144 are arranged opposite each other across the lower column 2 and are placed on the deck slab 4 adjacent to the lower column 2.

Furthermore, because the support frame 50 can move in the width direction Y on the deck slab 4, the installation support device 5 for the upper column 1 makes it easier to install the support frame 50 on the deck slab 4 and remove the support frame 50 from the deck slab 4 compared to support frames that are installed and removed using a chain block or the like.

In addition, when the upper column 1 and the lower column 2 are connected by a damper, as in Example 1, the setup support device 5 for the upper column 1 can remove the support frame 50 while the upper column 1 and the lower column 2 are still connected by the damper. Therefore, the setup support device 5 for the upper column 1 can more reliably prevent the upper column 1 from colliding forcefully with the lower column 2 when the lifted upper column 1 is brought into contact with the lower column 2 by using the damper.

In correspondence between the configuration of this invention and the above-mentioned embodiment,
The supported portion of the present invention corresponds to the first supported portion 21 of the embodiment,
Similarly,
The contact portion corresponds to the first contact portion 143,
The pivot portion corresponds to the second abutment portion 144 and the pivot portion 33,
The floor corresponds to slab 4,
The pressing mechanism corresponds to the hydraulic jack 31,
The rotation mechanism corresponds to the rotation base 41,
The damping mechanism corresponds to the damper 23.
The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.

For example, in the above-described first to fourth embodiments, the upper column 1 and the lower column 2 are cylindrical steel frames, but this is not limited thereto, and they may be H-shaped steel frames or the like.
Furthermore, in the above-described first to fourth embodiments, the lower columns 2 penetrate the deck slab 4, but this is not limited to this, and the bases of steel columns provided in the foundation may also be used as the lower columns.

Furthermore, in Examples 1 to 4, the support cradles 10, 30, 40, and 50 are not limited to the above-described configurations. For example, the support cradle may be rotatably supported by the first abutment portion 143 around the front-rear direction X as the center of rotation, and may include a hook member that engages from above with the first supported portion 21 of the upper column 1 placed on the first abutment portion 143.
The hook member has, for example, a generally claw-shaped tip and is formed so as to come into contact with the circumferential surface of the first supported portion 21 in the width direction Y.

The hook member is engaged with the first supported portion 21 by being rotated manually by an operator or by being rotated by an actuator operated by an operator.
When the second supported portion 22 of the upper column 1 is placed on the second abutment portion 144 of the support frame, the hook member is released from its engagement with the first supported portion 21 by an operator or an actuator, etc.

With this configuration, the erection support device 5 can use the hook member to restrict movement of the first supported part 21 placed on the first abutment part 143 in the width direction Y. As a result, when erecting the upper column 1 in a reclined position, the erection support device 5 can prevent the upper column 1 from coming off the support frame, thereby supporting safer erection of the upper column 1.

In addition, in the above-described Example 1, the first supported portion 21 and the second supported portion 22 were fixed to the lower erection piece 1a of the upper column 1 via the mounting member 24, but this is not limited to this, and the first supported portion 21 and the second supported portion 22 may be inserted into through holes provided in the lower erection piece 1a.

Furthermore, in Example 1, the first supported portion 21 and the second supported portion 22 are made of steel round bar material, but this is not limited to this, and the first supported portion and the second supported portion may be of any suitable shape as long as they are shaped to be supported by abutting against the first abutment portion 143 and the second abutment portion 144 of the support frame 10.
Alternatively, the first and second supported portions may be appropriate portions of the upper column 1. In this case, the first and second abutting portions are formed in appropriate shapes that can support appropriate portions of the upper column 1 by abutting against them.

In addition, in the first embodiment, the lower end of the damper 23 is connected to the lower pillar 2 , but this is not limited thereto, and the lower end of the damper 23 may be connected to the support frame 10 .
Furthermore, the damper 23 is provided as a means for reducing the descent speed of the upper column 1, but the present invention is not limited to this and any suitable means may be used as long as it can reduce the descent speed of the upper column 1. The damper 23 may also be provided in Examples 2, 3, and 4.

In addition, in Example 2, the support frame 30 does not have a second abutment portion, but this is not limited to this, and a second abutment portion may be provided as in Example 1. In this case, a second supported portion 22 is attached to the upper column 1.

In addition, in Example 3, the upright upper column 1 is rotated around the vertical direction by the rotating base portion 41, but this is not limited to this, and the upper column 1 may be rotated around the point of contact with the first abutment portion 143 or the second abutment portion 144 while being rotated around the vertical direction by the rotating base portion 41.
Even in this case, the same effects as those of the third embodiment can be achieved.

Furthermore, in Example 4, the support frame 50 has a rotatable lower beam portion 54 and upper beam portion 55, but this is not limited to this, and any suitable configuration may be used as long as the support frame can be installed and removed by running on the deck slab 4.
For example, the support cradle may be configured in a generally U-shape in plan view with one side open in the width direction Y, or may be a support cradle to which members extending in the front-rear direction X (one beam portion 112, connecting rod 114, and connecting portion 142 in Example 1, and the lower beam portion 54 and upper beam portion 55 in Example 4) are detachable. Alternatively, the support cradle may be a support cradle that can be separated approximately at the center in the width direction Y.

In addition, in Example 4, the worker rotated the lower beam portion 54 and the upper beam portion 55 on one side in the width direction Y, but this is not limited to this, and the worker may rotate the lower beam portion 54 and the upper beam portion 55 on the other side in the width direction Y.

1...upper column 2...lower column 4...deck slab 5...construction support device 21...first supported portion 22...second supported portion 23...damper 31...hydraulic jack 32...support portion 33...pivot portion 41...rotating base portion 141...bridge portion 143...first contact portion 144...second contact portion

Claims (7)

An upper column erection support device that supports the erection of an upper column that is carried in lying down so that the longitudinal direction is approximately horizontal,
a contact portion that supports a supported portion provided below the lower end of the upper column when the upper column is laid down by contact;
a pivot portion that is provided at a position diagonally above the abutment portion and that pivots the upper column, the upper end portion of which is opposite to the lower end portion and is lifted up;
The abutment portion and the pivot portion are
An upper column installation support device is arranged across the lower column and placed on the floor surface adjacent to the lower column. The supported portion of the upper pillar is a first supported portion, and the abutting portion is a first abutting portion,
The pivot portion is
2. The upper column installation support device according to claim 1, which is configured with a second abutment portion that supports by abutting a second supported portion provided at the lower end of the upper column opposite the first supported portion. The upper column installation support device according to claim 2 , wherein the first contact portion and the second contact portion are connected across the lower column. The pivot portion is
a bridge portion extending obliquely upward from one end connected to the abutment portion, and a support portion supporting the other end of the bridge portion, the bridge portion being pivotally connected to the support portion;
The upper column installation support device according to claim 1, further comprising a pressing mechanism that presses one end of the bridge section upward. 5. An upper pillar installation support device according to claim 1, further comprising a rotation mechanism that rotates the abutment portion and the pivot portion together in the horizontal direction around the lower pillar. 6. An upper column installation support device according to claim 1, further comprising a damping mechanism that reduces the descending speed of the upper column. A method for supporting the erection of an upper column that supports the erection of an upper column that has been brought in lying down so that its longitudinal direction is approximately horizontal, comprising:
a step of abutting a supported portion provided on the lower side of the lower end of the upper column in a laid state against an abutting portion placed on a floor surface adjacent to the lower column;
a step of lifting the upper end of the upper pillar, the lower end of which is supported by the abutment portion, and starting to rotate the upper pillar around the abutment point with the abutment portion;
and rotating the upper column, with its upper end lifted, around a pivot part that is located diagonally above the abutment part across the lower column and placed on the floor surface adjacent to the lower column.