JPS6027322B2 - Construction method for temporary protective floors in elevated road construction, etc. - 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 surface of elevated roads, concrete lumps and other various falling objects occur during road construction, so bridge piers and road girders have been placed to protect the houses, cars, and passersby below. Protective floors to prevent falling objects are suspended from road girders during concrete pouring for roads. By the way, the secondary protective floor is constructed by constructing scaffolding from the ground to the lower surface of the road girder at a height of low or higher depending on the location, and attaching materials to the lower surface of the road girder.

For this reason, it is necessary to block traffic below from the scaffolding to the construction of the protective floor and the subsequent removal of the scaffolding.
Construction of the protective floor is being carried out at night when there is little traffic. However, in the conventional construction method described above, as a result of working at night at a height of several feet above the ground, the number of accidents is considerably higher 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 can fall until several hours after the rain has stopped, causing various problems. The present invention has been made in view of the above-mentioned drawbacks of the conventional technology, and prevents rainwater from falling on the protective floor until several hours later, thereby preventing accidents and lighting.
The present invention aims to provide a method for constructing temporary protective floors for elevated road construction, etc., which can prevent pollution caused by noise and the like.

ZNext, the present invention will be explained with reference to the attached drawings which are one embodiment. FIG. 1 shows a temporary protective floor 1 for elevated road construction, etc. according to the present invention, 2 is a panel constituting the temporary protective floor 1, 13 is a rod-shaped body for suspending Z provided on the upper surface of the panel 2, and 16 is a temporary protective floor. A protection wall called "morning light" is provided at least on one end of the protection floor 1, and 24 is a wire for suspending the temporary protection floor 1.

In addition, 26 is a road on the ground, 27 is a T-shaped pier installed in the center of the road 26, 28 is a structural material such as a road girder installed on the top surface of the pier 27, and 29 is a structural material such as a road girder installed on the top surface of the structural material 28. This is an elevated road to be constructed.

The panel 2 has an area that is a fraction of the span of the pier 27 and the elevated road 29, and is required to have a size of about 30 m in length x 10 m in length. This panel 2 may be composed of one panel, but for transportation and storage reasons, for example, a second
As shown in FIG.
It is composed of a plurality of unit panels 3 having a length of 3.6 m and a medium size of 1.8 m. A through hole 8 is provided in the upright frame 6 of the unit panel 3. The panel 2 is assembled in the construction zone 30 provided below the elevated road 29 and in the center of the surface road 26 in the following manner.

First, as shown in FIG. 4, a plurality of long beams 10 made of truss beams or the like having a predetermined length are arranged parallel to the structural members 28 on the upper surface of the construction zone 30.

It should be noted that two long materials 10 are sufficient if the inside of the panel 2 is about 10 pieces.

Next, on the top surface of the long village 10, comb-shaped bodies 11 made of offcuts or the like having approximately the same length as the inside of the panel 2 to be formed are placed at appropriate intervals in a direction perpendicular to the longest timber 10. .

In this embodiment, the support portion 9 of the panel 2 is configured such that the unit panel 3 is supported by two rod-shaped bodies 11, which are arranged at an interval of 1.8 mm. Next, a plurality of unit panels 3 are laid on the support part 9, and the rising frames 6 of adjacent unit panels 3 are connected to each other with clips 12 or bolts as shown in FIG. Form panel 2. In this case, as shown in FIGS. 6 and 7, the clip 12 can be easily connected by inserting one end into the through hole 8' provided in the upright frame 6 of the unit panel 3 with a single touch. be. Next, hanging rods 13 are arranged on the upper surface of the panel 2 at appropriate intervals so as to cross the panel 2, and as shown in FIGS. 8 and 9, bolts, nuts 14, washers 15, etc. Connect it to panel 2 with .

The reason why the hanging rod-shaped body 13 uses two C-shaped members together is that the position of the bolt/nut 14 can be adjusted, and as shown in FIG. This is to facilitate connection with the adjacent panel 2 in the middle direction by making the shape member protrude more than the other C-shape member. The hanging rod-shaped body 13 is disposed with one end thereof protruding outward from one side end of the panel 2, and a protective wall called a morning sun is provided on the upper surface of the hanging rod-shaped body 13 that protrudes from the one end of the panel 2. 16 are provided.

On the other hand, at the pond side end of the panel 2, one C-shaped member of the hanging rod-shaped member 13 is arranged so as to protrude outward from the other C-shaped member. This allows the C-shaped members of the hanging rods 3 of adjacent panels 2 to be tightly connected together with bolts or the like, thereby connecting the panels 2. As shown in FIG. 10, the protective wall 16 is constructed by attaching a plate-like member 17 having a pipe-shaped protrusion 18 on the upper surface to the upper surface of the hanging rod-like body 13 via a bolt 19 and a washer 20. Projection part 1 of plate member 17
Insert the pipe pillar 21 into the pipe pillar 8, and insert the plywood 2 between the pipe pillars 21.
2. It is constructed by stretching a wire mesh 23 or a sheet. The temporary protective floor 1 constructed as described above, consisting of the support part 9 consisting of the elongated material 10 and the rod-shaped body 11, and the panel 2 and the hanging rod-shaped body 13, is attached to the construction zone 30 by an appropriate device.
It is lifted into the air from above and positioned below the structural member 28.

In this case, special lifting methods include a method using a lift, a crane, a wire, etc. In the case of using a lift, the long material 10 is placed on the elevating platform of the lift, and the rod-shaped body 11, the panel 2, and the hanging rod-shaped body 1 are placed on the top surface of the elongated material 10.
Assemble in the order of 3. In addition, in order to raise such a large panel 2, it is necessary to use several lifts and operate them at the same time. In the method using a crane, a crane wire is connected to the long material 10 to raise it.

In addition, in the method of winding up a wire, one end of the wire is connected to the structural member 28, the other end is attached to a winch equipped with one piece of the largest length of wire, and the entire wire is raised by winding the wire with the winch.

The support part 9 and the temporary protective floor 1 which have been specially raised to a position below the structural member 28 are connected to the hanging rods 13 of the temporary protective floor 1 to the horizontal member 28 by wires 24 or chains, and then supported. Lower part 9 to the ground.

The wires 24 are arranged at the middle of the wires 24 so that the upper surface of the temporary protective floor 1 can be sloped in order to prevent the load from concentrating on the wires 24 at specific locations and to drain rainwater during rainfall. It is preferable to provide a turnbuckle 25 in the section. Further, in order to drain out rainwater during the rain, it is preferable to provide appropriate drainage holes in the upright frames 6 of the unit panels 3 constituting the temporary protective floor 1. The above temporary protective floor 1 is composed of a construction-only belt 30;
is generally about 1 part of the elevated road 29 centered on the pier 27.
There are only /2.

Therefore, the number of panels 2 made up of the construction-only belt 30 is 1/2 to 1/3 of the required number. Therefore this 1
After pulling up one panel 2, the second panel 2 is pulled up and placed in the middle direction of each other to form the necessary temporary protective floor 1. Therefore, the morning-morning protective wall 16
is not necessarily required for each panel 2, and may be provided at one end of the panel 2 located at the end. In addition, for the temporary protective floor 1 with a lotus installed in the middle direction as described above, each panel 2 suspension rod 13 is connected with bolts, or the panels 2 are connected with each other with bolts so that the lotus installed part does not open due to wind pressure etc. Clip 12
It is preferable to connect by etc. As is clear from the above explanation, according to the present invention, the temporary protective floor constructed on the ground is specially raised and suspended using an appropriate method, so there is no need to construct scaffolding as in the past, and Since it takes less than 30 minutes to hang the structure, construction can be carried out without blocking traffic for a long period of time, unlike in the case of a secondary structure.

Furthermore, since a temporary protective floor can be constructed from a construction zone on the ground without the need for scaffolding, it is possible to prevent accidents caused by workers falling or falling materials. moreover,
It takes a relatively short time to construct a temporary protective floor in the area reserved for daytime construction work, and to raise and hang it in a relatively short time, so instead of carrying out nighttime construction work like in the past, we chose a time during the day when there is relatively little traffic. It is possible to suspend the temporary protective floor from a special height, which prevents pollution caused by lighting, noise, etc., which is conventional, and can also be used to construct temporary protective floors in a short time by mobilizing a large number of craftsmen at night. Since there is no need to reduce the number of workers, craftsmen can be used effectively. In addition, by providing appropriate drainage holes in the rising frame of the unit panel, rainwater will not accumulate on the unit panel and will prevent problems such as water droplets falling downward from the temporary protective floor until after the rain has stopped. Never occurs. Since the temporary protective floor of the present invention has sufficient strength to allow people to walk freely above it, it can also be used as a scaffold for painting road girders, etc.

In addition, although the above-mentioned embodiment explained the case of an elevated road, it is not limited to this, and can also be used for other bridges, building construction, or renovation thereof.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a temporary protective floor for elevated road construction etc. according to the present invention, FIG. 2 is a perspective view showing a unit panel constituting the panel of the temporary protective floor in FIG. 1, and FIG. Fig. 4 is a perspective view showing how the temporary protective floor in Fig. 1 is assembled on the ground, Fig. 5 is a perspective view showing the clip, Fig. 6 and Fig. 7 are 2 is an enlarged sectional view showing a state in which the unit panels in FIG. 5 are connected with the clips in FIG. 5, and FIGS. 8 and 9 are enlarged sectional views showing a state in which the panel in FIG. FIG. 10 is an enlarged perspective view showing the state in which the protective wall in FIG. 1 is attached. 1...Temporary protective floor, 2...Panel, 3...
...Unit panel, 6...Rising frame, 8...
Through hole, 9... Support part, 10... Long material,
11... Rod-shaped body, 12... Clip,
13... Hanging rod, 14... Bolts and nuts, 16... Protective wall, 24...
Wire, 26... Ground road, 27... Bridge pier, 28... Structural material, 29... Elevated road, 30... Construction zone. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 7 Figure 8 Figure 9 Figure 6 Figure 10

Claims (1)

[Scope of Claims] 1. Two or more parallel elongated members having a predetermined length, which are constructed on the ground, and rod-shaped bodies arranged at approximately constant intervals in a direction transverse to the elongated members. a support part consisting of a support part, a panel constructed by connecting a plurality of unit panels located on the support part, and a hanging bar arranged to cross the panel and connected to the panel by bolts or the like. The temporary protective floor consisting of the body and body is lifted into the air using appropriate equipment, positioned below the horizontal members such as road main girders, and the horizontal members and hanging rods are connected with wires, etc., and then the above-mentioned A method of constructing a temporary protective floor for elevated road construction, etc., characterized by lowering the supporting part to the ground. 2. A panel is constructed by configuring a panel by arranging a plurality of unit panels having peripheral rising frames in a row and connecting adjacent rising frames with clips or the like. construction method for temporary protective floors in elevated road construction, etc. 3. A temporary protective floor for elevated road construction, etc. as set forth in claim 1 or 2, characterized in that a through hole into which one end of a clip or bolt can be inserted is provided at a predetermined position in the rising frame of the unit panel. construction method. 4. A temporary protective floor for elevated road construction, etc. according to any one of claims 1 to 3, characterized in that the support part and the temporary protective floor are constructed on a lifting platform such as a lift. Construction method. 5. The elevated road according to any one of claims 1 to 4, characterized in that a plurality of temporary protective floors are suspended in succession in the width direction to obtain a temporary protective floor with a predetermined width. Construction method for temporary protective floors in construction, etc.