JPH0325573B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for constructing a structure.

The outline is to pass a beam hanging member with a beam suspended between two pillars that are built almost vertically, and using both pillars as guides, move the beam hanging member up or down to the position where the beam will be attached. between the two pillars,
A method of constructing a structure for constructing its framework,
It is particularly suitable for construction methods for structures. By doing so, it is possible to construct the framework of the structure more safely and efficiently, and labor savings can be realized.

Generally, for structures such as reinforced concrete, the frame is assembled by joining steel columns and beams on-site using welding, joints (for example, joining bolts, rivets), and the like. First, the steel columns are erected almost vertically,
After it is fixed, a beam is connected to it. The conventional concrete procedure is that a worker straddles a steel beam, shouts, whistles, etc., and positions the steel beam lifted by a crane or the like almost between the two pillars that span it. The steel beams are positioned at the installation locations of the steel columns, and then two workers straddle the steel columns on both sides to install them.

In such a method, it takes a considerable amount of time to position the steel beams in the specified position.
In addition, since the work was carried out at heights, the workers required a high degree of skill.

Therefore, the conventional method of attaching steel beams to steel columns has the following drawbacks:
This can become a common thread and pose a problem.

This invention was made in view of the problems of the prior art, and is based on the idea of installing a so-called beam guide jig, using the pillar as a guide, and attaching the beam to the pillar. In addition, the aim is to automate the positioning, thereby ensuring worker safety and improving work efficiency.

In order to achieve such an object, the present invention has a plurality of almost vertically erected columns (for example, steel columns 2,
2, and has a length that can be passed between the beam 21 and two columns (steel columns 2, 2) of the plurality of columns,
And a beam suspension member 2 with a structure that can be moved up or down using these two columns (steel columns 2, 2) as a guide.
0, and this beam hanging member 20
The beam 21 is suspended, and the beam suspension member 20 with the beam suspended is placed between the two columns (steel columns 2, 2), and the beam joints 5a, 5b provided on these columns or on these columns. using the beam hanging member 20 as a guide.
and then bridge the beam 21 between these two columns (steel columns 2, 2).
It concerns a construction method for such a structure.

In this specification, the term "above the part of the column where the beam is placed" is used to include not only the top of the column, but also the side surfaces of the top of the column.

In this way, by adopting a configuration in which the beam is positioned at a predetermined position using the beam suspension member using the column as a guide, for example, it is possible to attach the steel beam to the steel column of a building almost automatically and in a short time. It can be safely located inside.

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of a building construction method in which the present invention is applied to a building.

Fig. 1A and Fig. 1B are explanatory diagrams for vertically erecting a steel frame column, and Fig. 1A is a working state diagram when erecting a steel frame column, and Fig. 1B
This is a work state diagram for joining steel columns in a vertical state.

In the figure, 1 is a vertically corrected steel column that has already been built on the lower floor (or a foundation joint with anchor bolts and base plates, etc.), and 2 is an upper floor that will be built on top of the steel column 1. (or the first steel column erected. 3 is an electric rotary hook suspended from the tip of a crane, etc.)
An automatic vertical correction device 4 is suspended from the lower part, and this automatic vertical correction device 4 holds the upper tip 2a of the steel column 2 and lifts the steel column 2 via this.

On the other hand, the steel column 2 has beam joint parts (joint beam member + gazette plate) 5a and 5b for joining with the beam.
is 2 in the left and right direction (or in all directions) (4 in all directions)
), projecting horizontally in two stages,
A construction correction device 7 is provided at the joint portion at the lower end.

Here, the beam joints 5a and 5b have dowel pins 5c and 5d on their tip sides for positioning. Moreover, the erection correction device 7 has a bolt or nut for level adjustment, and by adjusting this, the vertical position of the steel column 2 is corrected. Furthermore, a vertical collimator 6 is removably attached to the lower side of the steel column 2 near the joint with the steel column 1 by a magnet or the like, and this vertical collimator 6 serves as a collimating telescope. and a tilt sensor (not shown). A target 8 to be collimated with this sighting telescope is fixed and arranged at a position opposite to the tip 2a of the steel column 2.

FIG. 1B shows a working state diagram of joining the steel column 2 vertically to the tip 1a of the steel column 1, and the steel column 2 in FIG. 1A is lowered and the steel column 2 in FIG. The state shown in is reached. Here, look through the sighting telescope of the vertical sight 6, and set the line of sight of the telescope to the target 8.
In accordance with this, the steel column 2 is positioned vertically by adjusting the level bolts of the erection correction device 7 using the vertical collimator 6.

In this way, when the steel column 2 is erected vertically following the steel column 1, they are tightened and fixed by the bolts in the erecting correction device 7, and are joined together. At this point, the vertical erection of the steel column 2 is completed.

FIG. 2 is an explanatory diagram of bridging a beam between the vertically erected steel columns 2, and FIG. FIG. B is an explanatory diagram showing a state in which the beam suspension member is passed between two steel columns, and FIG. 2C is an explanatory diagram showing a state in which the beam is spanned between two steel columns.
In these figures, the same reference numerals as in FIG. 1 indicate the same components.

In FIG. 2A, 20 is a beam hanging member, and 21 is a beam suspended by this beam hanging member 20. In FIG. The beam 21 is suspended and held by the beam suspension member 20 at two locations by two chains 23, while the beam suspension member 20 is suspended from the electric rotary hook 3 via a wire 22. There is.

The chain 23 connects the beam 21 to the electric chuck 23.
The wire 22 is fixed to its tip via a and 23b, and is provided with a wire expansion/contraction device 22a. Note that 25 is a hydraulic fluid supply cable.

Here, the beam suspension member 20 has a horizontal rod part (main rod part) that expands and contracts in its longitudinal direction, and has guides at both ends that are in contact with the side surfaces of the steel column 2. guide members 24a, 24
It has b. Bracket parts 20a and 20b are provided at symmetrical positions in the middle to fix the chain 23 and the wire 22 at two points. Note that the specific structure thereof will be explained in FIG. 3, which will be described later.

On the other hand, the beam 21 is provided with joint plates 21a and 21b at both ends thereof for joining with the steel column 2, and further has dowel pins 5c and 5d shown in FIG.
The through holes 21c and 21d that fit into this joint plate 21
a, 21b.

In FIG. 2B, steel columns 2, 2 show two steel columns that are erected vertically and are adjacent to each other. The beam hanging member 20 is lifted by a crane and carried to the top of these steel columns 2, 2 (including the top side surfaces thereof). In this state, the length of the beam suspension member 20 is adjusted so that the guide members 24a, 24b have a length that bridges both sides of the steel columns 2, 2. At this time, the beam 21 suspended by the beam suspension member 20 is located above the joining plates 5a, 5b of the steel columns 2, 2. Here,
In FIG. 2B, the beam joints 5a and 5b are shown in the upper part of the two stages, but in the case of the lower part, the beam hanging member 20 is similarly attached to the upper part ( or the top of the side).

Next, as shown in Figure 2C, the crane
The electric rotary hook 3 is lowered and the guide member 2
4a and 24b contact the steel columns 2 and 2, respectively, and are lowered using the steel columns 2 and 2 as guides, and the beam 21 is lowered quietly. Eventually, the beam 21 is lowered to the beam joints 5a, 5b of the steel columns 2, 2, and here the dowel pins 5 provided at the beam joints 5a, 5b are lowered.
c, 5d are fitted into the through holes 21c, 21d provided in the joint plates 21a, 21b of the beam 21, positioned at predetermined positions, and bridged.

Thereafter, the steel column 2 and the beam 21 are joined together by, for example, tightening bolts or the like via the movable splice plates provided at the beam joints 5a and 5b.

As a result of the above, the beam 21 is guided by the beam suspension member 20 and is safely and automatically led to the beam joints 5a and 5b of the steel column 2. At this time, the steel column 2 plays the role of a guide.
and guide members 24a, 24b that engage with these. The structure of the guide members 24a, 24b is as follows:
Various methods are possible, and some specific examples are shown in Figure 3.

FIG. 3 is an explanatory diagram of the structure of the beam suspension member and its guide member.

FIG. 3A shows the guide member 24 of the beam hanging member 20.
It is a concrete explanatory view of the structure of a, 24b and the way of contacting with the steel frame column 2, and shows the top view.

The beam hanging member 20 mainly includes a horizontal main rod portion, and cylinder devices 30a, 30b, guide members 24a, 24b, and bracket portions 20c, 20.
It is mainly composed of d. This is equipped with cylinder devices 30a and 30b on the left and right sides of its horizontal main rod portion, which allow it to extend and contract. At both ends of the cylinder devices 30a, 30b, there are bracket portions 20c, 20d (see Fig. 2).
is provided, and L-shaped guide members 24a, 24b are attached to the distal ends thereof in the horizontal direction.
Guide rollers 31a, 31b (see Fig. 2) are installed in the bracket portions 20a, 20d corresponding to the piston rods of the cylinder devices 30a, 30b.
is fixed, and this is in contact with the inner surface of the steel column 2 on the side where the beam is passed. In addition, the guide member 24
The inner sides of the L-shaped bent portions a and 24b are also brought into contact with the sides of the steel column 2 at the same time. In this way, it comes into contact with the steel column 2 and uses it as a guide. Note that the length from the guide rollers 31a, 31b of the guide members 24a, 24b to the L-shaped bent portion is adjustable, and here it is adjusted to approximately half the width of the steel column 2. .

By the way, as an example when the beam suspension member 20 is brought into contact with the steel column 2, in the state shown in FIG. 3A,
While rotating the electric rotary hook 3 clockwise,
The beam suspension member 20 is lowered close to the steel column and brought into contact with the upper side surface of the steel column 2.

The beam hanging member 32 shown in FIG. 3B is another specific example of the beam hanging member. In this case, the guide member 24a in FIG. 3A is reversed, and the mounting guide members 24a and 24b are mounted symmetrically with respect to the left and right rotations. In the case of such a beam hanging member 32, once the beam hanging member 32 is passed through the guide member 24a side between the steel columns 2, 2, the beam hanging member 32 is lowered while rotating clockwise. Then, it is brought close to the steel column 2 and brought into contact with the upper side surfaces of the steel columns 2, 2, which are opposite to each other.

The beam suspension member 33 shown in FIG. 3C is yet another specific example of the beam suspension member. The beam hanging member 33 shown in FIG. It is pivotally mounted with a pivot 35a so as to swing relative to the devices 30a and 30b. This guide member 34 consists of two spring members 36
This applies a horizontal pulling force, which is normally oriented horizontally. This is done by placing the beam hanging member 20 near the steel column 2, contracting the beam hanging member 33 in advance, stretching the beam hanging member 33 using the cylinder devices 30a and 30b, and then using the shaped portion 35 to It is something that sandwiches 2,
If there is an obstacle during the descent, the shaped portion 35 swings to overcome it. In addition,
Although not shown, the left side of the beam hanging member 33 is provided with a guide member having the same shape as this.

Here, the curved portions 35 on both sides may be further elongated and provided so as to hang vertically toward the beam joints 5a and 5b with respect to the beam suspension member 33. In this case, the pillars are not used as guides, but the beam joints 5a and 5b are used as guides.

That is, in this case, if the beam joint parts 5a and 5b are sandwiched between the shaped portions 35 and the beam hanging members 33 are successively lowered, they will be guided to a predetermined position.

By the way, in this invention, instead of using the pillar as a guide, the joint plate may be used as a guide to guide the guide indirectly, and the guide member may have a shape such as the shaped portion 35, for example, Various methods may be employed, such as providing a rod-shaped member on the beam suspension member 33, fitting it into grooves etc. previously provided in the beam joints 5a and 5b, guiding it, and moving the beam suspension member up and down. I can do it.

The beam hanging member 34 shown in FIG. 3D is yet another specific example of the beam hanging member. The beam hanging member 34 shown in FIG. 3D includes an L-shaped guide member 24a,
24b is attached to the cylinder devices 30a and 30b, and the L
It is attached by being pivoted at the bent part of the letter. This beam hanging member 34 has the ends of the L-shaped guide members 24a and 24b contacting the steel column 2, and is further pushed forward and rotated to take the shape shown by the broken line, and the third Similar to the beam suspension member 33 shown in FIG. C, the steel column 2 is sandwiched therebetween. The guide members 24a and 24b are also shaped so that their rotation stops at the shape.
It is provided with stoppers 37a and 37b.

The above is a specific example of the beam hanging member, but in addition, L-shaped guide members 24a and 24b at both ends
Further, in opposition to this, another L-shaped guide member is provided symmetrically and pivotally attached to both ends of the beam suspension member, and, for example, a solenoid or the like is actuated,
These may be rotated, and the guide members at both ends may be formed into a U-shape to sandwich the steel column 2.

In this way, various types of beam suspension members 20 are conceivable, but any type may be used as long as it uses a steel column as a guide. In particular, if a solenoid or the like is actuated or a cylinder device is used, various modifications are possible, and the one shown in FIG. 3 is only one example.

For example, a hook that can be lowered is installed in advance on the upper side of a steel column, and on the other hand, a hook member that is hooked to the hook is attached to the beam hanging member side.
It is also possible to provide it at both ends, hook a hook for the beam hanging member onto these hooks, use this as a guide to span the beam hanging member, and lower the beam hanging member together with these hooks. . In addition,
In this case, the beam hanging member is shortened after being hooked to the hook, but the span of the beam hanging member as a whole can be shortened.

As described above in detail, in the above embodiment, the case where the beam suspension member is lowered is taken up, but it is also possible to raise the beam along the steel column and guide the beam to a predetermined beam joint. good. One method in this case is to place the suspended beam in advance by extending its chain or the like to a position below the beam joint.

Moreover, separately from this, a beam may be arranged above the beam hanging member. In this case as well, in this specification the beam is included in the concept of hanging.

Another method is to provide a groove in the beam joint, and using this as a guide, attach the beam suspension member (the arm hangs vertically from the beam suspension member) through an arm that fits into the groove. It can be raised to set the beam in place.

However, as mentioned above, when raising the beam and positioning it, the ends of the beam and the tip of the beam joint are
For example, it is preferable that each of them be opened downward in a V-shape so that they fit together at the bottom.

Here, the advantage of positioning the beam by raising it in this way is particularly effective when passing the beam on the top floor. Note that since there is no guiding pillar on the top floor, if a temporary guide is installed above the pillar, the beam hanging member can be easily lowered and positioned at a predetermined position.

On the other hand, the guide roller in the embodiment is not particularly necessary, and the guide roller does not take the form of a guide roller, but restricts the lateral movement of the beam suspension member with respect to the steel column and slides. Any material is fine as long as it is a part. Furthermore, the beam suspension member does not necessarily need to expand and contract, especially if it can bridge two steel columns. Here, if it is a structure that moves using steel columns as a guide,
The beam can now be positioned. Therefore,
If the pillar can be used as a guide, there is no need for a special guide member.

The device for expanding and contracting the beam suspension member is not limited to the cylinder device, but can be realized by various link mechanisms. Further, the steel frame column is not limited to a steel frame column, and may be a simple column.

Here, in the above embodiment, the beam suspension member is lowered (or raised) to position the beam at a predetermined position, and the beam is spanned between two columns. Instead of lowering (raising) a member across two pillars, you can stretch (shrink) the chain at any position, lower (raise) the beam, and then bring it to the specified position. The beam may be positioned between two pillars. In this way, by adopting a configuration in which the beam is lowered by a chain, fine adjustment can be made when setting the beam.
In this case, the chain 23 is an expandable chain equipped with an electric chain block or the like.

By the way, this invention is applicable not only to buildings but also to structures in general.

As explained above, the method of the present invention involves suspending a beam from a hanging member and suspending this from the hook of a crane, and adjusting the length of at least one of the wires for hanging the hanging member from the hook by remote control. Since the beam is maintained horizontally by keeping the hanging member horizontal, the work of joining the beam to the beam joint of the column can be smoothly performed.

Further, according to the present invention, since the hanging member is expandable and contractible, the length can be changed according to the spacing between the two pillars on which the beam is constructed. The suspension member allows the beam to be suspended using the pillar as a guide.

Further, according to the present invention, in addition to being guided and suspended by the pillars as described above, the beam is erected by the uneven engagement of the through hole and the dowel pin. Just lower it from
Beams can be erected between columns, making work easier.

Further, according to the present invention, when the chuck is released by remote control, the installed beam and the hanging member are separated, so that the operation of the crane, the operation of hoisting the beam while keeping it horizontal, and the operation of lifting the beam are performed. A series of operations consisting of the operation of installing the beam at the joint of the column and the operation of separating the installed beam and the hanging member can be performed from the ground or from a designated floor, making it possible to perform high-altitude work for installing beams. This has the effect of making it unmanned.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of a building construction method in which the present invention is applied to a building, and Figure 1A is a working state diagram when erecting a steel column; B is a working state diagram for joining the steel columns 2 in a vertical state, FIG. FIG. 2C is an explanatory diagram showing a state where a beam is spanned between two steel columns. Also, Figure 3A is similar to Figure 2A.
FIG. 3B is an explanatory diagram illustrating a specific example of the structure of another beam suspension member, and FIG. FIG. 3D is an explanatory diagram illustrating a specific example of the structure of another beam suspension member. FIG. 3D is an explanatory diagram further illustrating a specific example of the structure of another beam suspension member. 1, 2... Steel column, 3... Electric rotating hook,
4... Automatic vertical correction device, 5a, 5b... Beam joint, 6... Vertical collimator, 7... Construction correction device,
8...Target, 20, 32, 33, 34...
Beam hanging member, 21... Beam, 24a, 24b... Guide member, 30a, 30b... Cylinder device.

Claims (1)

[Claims] 1. When a plurality of columns are erected vertically and a beam is horizontally suspended between two of these columns, a guide member that contacts the columns at both longitudinal ends is attached to a wire hung on the hook of a crane. Hang the hanging member horizontally,
A beam is suspended at multiple locations via a chuck that can be remotely controlled to release the suspension member, the beam is placed between two pillars, and in this state, the beam is raised or raised together with the suspension member using the two pillars as a guide. Lower it and position the beam above the beam joint provided on the column,
Next, the beam is lowered together with the hanging member, and the beam is moved between the two columns by engaging the beam joint with the through hole provided on one of the beams and the dowel pin provided on the other side. 1. A method for constructing a structure, comprising: constructing the structure, and then releasing the chuck by remote control to separate the hanging member from the beam. 2. While viewing the target attached to the top of the pillar erected by a crane through the vertical collimator attached to the bottom of the pillar, operate the erecting correction device installed at the bottom of the pillar to vertically move the pillar. A method for constructing a structure according to claim 1, which is constructed in.