JPS621045B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a protective floor mainly used during the construction of elevated roads in urban areas.

Conventionally, in urban areas, when concrete is placed on the road surface of elevated roads, falling concrete or various other objects may fall, causing damage to the houses, cars, etc. below.
To protect passersby, the bridge piers and road girders are placed, protective floors are hung from the road girders to prevent falling objects, and the road is poured with concrete.

By the way, conventional protective floors are constructed by constructing scaffolding from the ground to the lower surface of the road girder at a height of 10 m or more depending on the location, and attaching members to the lower surface of the road girder. For this reason, it is necessary to block traffic below from the time the scaffolding is assembled and the protective floor is removed until the scaffold is removed, so the construction of the protective floor is carried out at night when there is less traffic. .

However, in the conventional construction method, as a result of working at a height of several meters above the ground at night, accidents occur more frequently than during daytime construction, and pollution is caused by lighting, noise, etc. In addition, because the protective floor is constructed of scaffolding boards, rainwater on the protective floor continues to fall until several hours after the rain has stopped, causing various problems.

The present invention has been developed in view of the above-mentioned drawbacks of the conventional technology, and can be used in a short period of time during the daytime, that is, without interrupting traffic much, and at night, it can prevent accidents and pollution caused by lighting, noise, etc. The purpose of the present invention is to provide a method for constructing a temporary protective floor for elevated road construction, etc., which can be constructed while preventing the above-mentioned problems.

Next, the present invention will be explained with reference to the accompanying drawings, which are one embodiment of the present invention.

In Figure 1, 1 is a temporary protective floor, 25 is an above-ground road, 26 is a T-shaped pier installed in the center of the road 25, and 27 is a horizontal bridge such as a road girder built on the top of the pier 26. The material 28 is an elevated road constructed on the upper surface of the horizontal member 27.

The temporary protective floor 1 needs to have a size approximately equal to the span of the pier 26 and the width of the elevated road 28. 28
For example, intermediate panels 1a and 1b divided into two are assembled as shown below, and two of these are connected in the width direction to form a large temporary protective floor of a predetermined width. In addition, not only in the width direction,
It may be divided in the longitudinal direction and installed in a row.

First, as shown in Figure 2, the construction zone 2
Support elongated members 24 having a predetermined length are arranged parallel to each other and parallel to the horizontal member 27 on the upper surface of the support member 9, and a suspension consisting of a pair of rod-shaped bodies 3, 3 having a certain gap is disposed on the upper surface of the support member 24. The lowering rod-like members 2 are arranged at approximately constant intervals in a direction transverse to the elongated member 24. On the upper surface of the hanging rod member 2, as shown in FIG.
As shown in FIG. 4, a plurality of unit panels 4 each having an L-shaped metal fitting 5 fixed to both ends of the lower surface and a flat reinforcing material 6 fixed to the upper surface side end via bolts and nuts 7 are laid out. As shown, the adjacent unit panel 4
The hanging sides 5a of the L-shaped metal fittings 5 provided on the lower surface of the rod-like member 2 are fitted into the gaps between the rod-like bodies 3 of the rod-like member 2, and the rod-like members 2 are attached to the rod-like member 2 through the bolts/nuts 8 and presser washers 9. Connect panel 4. Through this connection, the connected unit panels 4 are connected to form intermediate panels 1a and 1b. At this time, the upper end of the bolt/nut 8 protrudes upward from the upper surface between the unit panels 4. Here, the bolt/nut 8 is used as a member for hanging the intermediate panels 1a, 1b, and at the upper end of the protruding bolt/nut 8, as shown in FIG. Hanging fittings 1 consisting of etc.
0 is screwed in as appropriate. Further, as shown in FIG. 7, a flat spacer 14 is provided on the upper surface of the connecting portion of the unit panel 4, and is provided at the upper end of the bolt/nut 7 for fixing the L-shaped fitting 5 of the panel 4. The gap between the connecting portions is closed by being pressed by a presser plate 15.

The hanging rod-shaped member 2 is arranged such that one end thereof projects outward from one side end of the intermediate panel, and the hanging rod member 2 is arranged such that one end thereof projects outward from one side end of the intermediate panel.
It is now possible to connect with

As shown in FIG. 2, on the upper surface of the protruding rod-shaped member 2, a protective wall 16 called a "morning" is provided as necessary, and the lower end is connected to a support tube 17 appropriately fixed to the rod-shaped member 2. , plywood or wire mesh,
A wall material 18 such as a sheet is stretched. Further, as shown in FIG. 8, a rain gutter 19 is arranged on the lower surface of the rod-shaped member 2, and the rain gutter 19 is connected at the lower end of the bolt/nut 8 that connects the other panel 4 and the rod-shaped member 2. can be supported.

On the other hand, when connecting the intermediate panels 1a and 1b in the width direction, as shown in FIG.
The rod-shaped member 2 protruding from one side end of a is engaged below the unit panel 4 of the adjacent intermediate panel 1b and in the middle of the rod-shaped member 2, and the intermediate panel 1 of both
It is designed to match comrades a and 1b.
As shown in FIG. 10, a connecting member 20 having a locking piece 21 on the bottom surface of the tip is located near the abutting portion.
is provided at the protruding upper end of the bolt/nut 8 that connects the unit panel 4 and the rod-like member 2 shown in FIG. By engaging with the provided reinforcing material 6, as shown in FIG. 11, adjacent intermediate panels 1a and 1b are firmly connected.

The intermediate panels 1a and 1b assembled as described above are lifted into the air from the construction zone 29 on the ground via the support long members 24 using an appropriate device,
It is located below the horizontal member 27.

In this case, methods for lifting include a lift, a crane, and hoisting with a wire or the like. In the case of using a lift, the support elongated member 24 is placed on the upper surface of the lifting platform of the lift, and the rod-shaped member 2, unit panel 4, etc. are assembled on the upper surface as described above. Moreover, in order to lift the large intermediate panels 1a and 1b, it is necessary to use several lifts and operate them to lift them simultaneously.

In the method using a crane, the long material 24 is connected to a crane wire and lifted.

In addition, in the method of winding up a wire or the like, one end of the wire is connected to the horizontal member 27, the other end is attached to a winch on the elongated member 24, and the entire wire is lifted by winding the wire with the winch.

The intermediate panels 1a and 1b lifted to a position below the horizontal member 27 are connected to the chain or wire 2
The rod-shaped member 2 and the horizontal member 27 are connected to each other via the bolt/nut 8 that connects the unit panel 4 and the rod-shaped member 2 by 2 and the hanging fitting 10 provided on the projecting upper end of the bolt/nut 8.
It can be hung by connecting the two. Thereafter, the long material 24 is lowered to the ground. Note that the wire 22
In order to prevent the load from concentrating on the wire 22 at a specific location, and to drain rainwater during rainfall, the middle part of the wire 22 is provided with a slope so that the upper surface of the middle panels 1a and 1b can be sloped. Preferably, a turnbuckle 23 is provided.

The intermediate panel is composed of a construction zone 29 on the ground, and this construction zone 29 is generally connected to the piers 26.
It is only about 1/2 the width of Elevated Road 28, centered on Elevated Road 28. Therefore, the intermediate panel assembled using the construction zone 29 has a width of 1/2 to 1/3 of the required width. For example, in the case of an intermediate panel that is 1/2 of the required width, lift one intermediate panel 1a and then
The second intermediate panel 1b is assembled, lifted, and connected to each other in the width direction to form a large temporary protective floor 1 of the required width.

Therefore, the morning glory-shaped protective wall 16 is not necessarily required for each intermediate panel, but may be provided at one side end of the intermediate panel located at the end. In addition, as mentioned above, the intermediate panels connected in the width direction are
In order to prevent the connecting portion from opening due to wind pressure or the like, the locking pawl 21 of the connecting member 20 provided at the protruding upper end of the bolt/nut 8 connecting the unit panel 4 of the intermediate panel and the rod-shaped member 2 is connected to the adjacent intermediate panel. It engages with the reinforcing material 6 provided on the unit panel 4 of the panel.

As is clear from the above description, according to the present invention, the intermediate panel assembled on the ground is lifted and hung by an appropriate device, so there is no need to set up scaffolding as in the past, and there is no need to lift and hang the intermediate panel. It takes less than 30 minutes to hang the structure, so it can be installed without blocking traffic for long periods of time, unlike conventional methods. Furthermore, since the intermediate panels can be assembled on the construction zone on the ground without building scaffolding, it is possible to prevent accidents caused by workers falling or falling materials. Furthermore, since it takes a relatively short time to assemble the intermediate panel in the daytime construction zone, lift it up, and hang it, you can choose a time during the day when there is relatively little traffic, instead of doing the construction in the daytime, as in the past. It is possible to lift and hang it. Therefore, it is possible to prevent pollution caused by conventional lighting, noise, etc., and since the assembly of the intermediate panel does not stop traffic, it does not have to be done in a short time and allows craftsmen to work more effectively. can be used.

In the temporary protective floor of the present invention, the intermediate panels constituting the protective floor can be easily connected, and the upper surface of the panel is flat without any protruding parts that would impede walking, making it easy to work on it and preventing rainwater. Easy to eliminate. Moreover, it has sufficient strength to allow people to walk freely on the upper surface, so it can be used as a scaffold for painting main road girders, etc.

In addition, a rain gutter can be installed at one end of the intermediate panel to collect and remove rainwater on the top surface of the temporary protective floor, so you can use the large temporary protective floor until after the rain has stopped, as in the past. It is possible to prevent troubles such as water droplets from falling downward.

Further, in the above embodiment, the case of an elevated road has been described, but the present invention is not limited to this, and can also be used for bridges, building construction, or renovation thereof.

[Brief explanation of the drawing]

Figure 1 is a front view showing a temporary protective floor for elevated road construction etc. according to the present invention, Figure 2 is a perspective view showing how the temporary protective floor in Figure 1 is assembled on the ground, and Figure 3 is the same as in Figure 2. A perspective view showing a unit panel, FIG.
The figure is a sectional view taken along the - line in Fig. 2, Fig. 6 is a front view showing a hanging fitting screwed onto the protruding upper end of the bolt in Fig. 5, and Fig. 7 is a sectional view taken along the - line in Fig. 2.
8 is a perspective view showing a state in which a rain gutter is provided at one end of the intermediate panel in FIG. 2, FIG. 9 is a perspective view showing a state in which the intermediate panel in FIG. 2 is connected in the width direction, and FIG. The figure is a sectional view showing the connecting member provided at the upper end of the bolt/nut in Figure 5.
FIG. 11 is a perspective view showing a state in which adjacent intermediate panels are connected. 1... Temporary protective floor, 1a, 1b... Intermediate panel, 2... Hanging rod-shaped member, 3... Rod-shaped body, 4
... Unit panel, 5 ... L-shaped metal fitting, 5a ... Hanging side, 8 ... Bolt/nut, 16 ... Protective wall, 1
9... Rain gutter, 20... Connection member, 22... Wire, 24... Support long member, 27... Horizontal member, 28
...Elevated road.

Claims (1)

[Scope of Claims] 1. Two or more parallel supporting elongated members having a predetermined length, and a hanging bar member disposed in parallel with a substantially constant gap in a direction transverse to the elongated members; , a plurality of unit panels are laid on the rod-shaped member, one end is attached to the rod-shaped member, and the other end is made to protrude above between the unit panels to form an intermediate panel, and this intermediate panel is The intermediate panels are lifted into the air by a device and positioned below the horizontal members such as road main girders, and the intermediate panels are connected to each other by connecting the horizontal members and hanging rod-like members with wires or the like via the hanging members. After creating a temporary protective floor consisting of panels,
A construction method for temporary protective floors in elevated road construction, etc., characterized by lowering long supporting materials. 2. The hanging rod-like member is composed of a pair of rod-like bodies with a certain gap, and the hanging sides protruding downward provided at the side edges of both unit panels adjacent to this gap are used to fix the unit panel and the rod-like bodies. 2. A method of constructing a temporary protective floor in elevated road construction, etc. according to claim 1, wherein the temporary protective floor is fitted through bolts. 3. The elevated road according to claim 1 or 2, wherein the hanging member is a suspension fitting attached to the top of a bolt that fixes the unit panel and the hanging bar member. Construction method for temporary protective floors in construction, etc. 4. Temporary construction for elevated road construction, etc. according to any one of claims 1 to 4, characterized in that the temporary protective floor is provided with a protective wall called morning sunrise on at least one side end. Construction method of protective floor. 5. A temporary protective floor for elevated road construction, etc. according to any one of claims 1 to 4, characterized in that the temporary protective floor is equipped with a rain gutter at one end thereof. Construction method. 6. Temporary protection in elevated road construction, etc. according to any one of claims 1 to 5, characterized in that the temporary protection floor is constructed using elongated materials on a lifting platform such as a lift. Floor construction method. 7. Elevated road construction, etc. according to any one of claims 1 to 5, characterized in that a plurality of intermediate panels are hung continuously in the width direction to obtain a temporary protective floor of a predetermined width. Construction method of temporary protective floor.