JP2585174B2 - How to fix scaffolding for temporary tents - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a temporary tent for construction used at a construction site such as a building, and more particularly to a method of fixing an external scaffold for installing the tent.

[0002]

2. Description of the Related Art As is well known, most of civil engineering and construction works are performed outdoors, and are affected by natural conditions such as rainfall, snowfall, wind and rain. There has been a problem that the construction cost is extremely increased, and as a result, the construction cost is increased due to a delay in the work process or a decrease in the operation rate. In addition, outdoor work, which is easily affected by natural conditions as described above, not only impairs the health of workers, but also causes slip and fall due to deterioration of work environment, and also causes physical injury such as deterioration of concrete and steel frame welding. It is also a cause.

In recent years, for the purpose of improving the working environment as described above, a temporary tent or a dome-type temporary roof device having a structure capable of completely surrounding the entire site or a part of a construction site has been developed. Has already been put into practical use. In other words, for the purpose of enabling on-site work even in the event of rainfall and allowing normal construction work using heavy equipment to proceed under the roof, use of external scaffolds at the construction work site Attempts have been made to mount construction temporary tents on the construction site to shield the construction site from wind and rain or snowfall.

[0004]

The present invention relates to a method for constructing a temporary tent similar to that described above, but is particularly useful in a construction site where there is no room on the site, and when the temporary tent is installed at a high altitude. The present invention also proposes a method that can be installed stably. In other words, in recent years, buildings are often built to fill the site due to the difficulty in obtaining land, and therefore, it is necessary to extend a stay wire to stably fix the work external scaffolding installed around the building. Is not possible.

That is, the temporary tent is desirably installed as high as possible in order to use a heavy machine such as a crane in the tent. In addition, as the height of the building gradually increases as the construction progresses, the scaffold for installing the temporary tent must be raised accordingly. In such a case, in order to fix the scaffold with high security, as has been done conventionally, on both side surfaces of the scaffold 4, the holding wires w,
w 'needs to be suspended. As shown in FIG. 2, it is desirable that the stay wire is suspended as much as possible, and it is desirable to keep the wire extension angle θ in FIG. 2 at 45 degrees. Is good. However, as in recent years, when an attempt is made to build a building over a small site area, in other words, the building or the building B
When there is not enough room around the wire, it is not possible to secure the above-mentioned stay wire w to the ground surface while maintaining a sufficient tension angle. Even if it can be fixed, it is difficult to set the wire stretching angle θ to 30 degrees or more, so that the safety factor falls accordingly.

[0006]

Means for Solving the Problems Here, the present invention provides:
In a method of sequentially installing a pair of left and right frame scaffolds outside of the planned structure to be constructed while stacking them, and detachably attaching a temporary tent to the upper surface of the scaffold,
A stay wire is suspended in the left-right direction from both side surfaces of the scaffold located in the upper layer of the plurality of framework scaffolds vertically stacked, and further, of the stay wires, at least toward the outside of the structure. The extending stay wire is bent through a stay rod extending horizontally from the outer wall surface of the structure, and is suspended vertically so that the scaffold can be safely secured even if there is no room on the site. Can be fixed.

[0007]

FIG. 10 is a front view of the entire construction site when the present method is carried out. Of the stay wires w and w 'supporting the external working scaffold 4 from the left and right, the wires extend outward. Instead of making the stretched state of the wire w straight, the wire in the section extending from the stayed state to the tip end of the same rod 30 through the stay rod indicated by reference numeral 30 in FIG. The desired angle θ 2 , that is, θ 2 = 30 to 45 degrees, can be maintained, and the wire after passing through the same rod can be hung parallel to the wall of the building even if there is no room on the site. The external scaffold 4 can be fixed stably.

FIGS. 11 to 12 show details of the fixing method. As an example, a joist 31 is fixed to the upper surface of a framed scaffold 4 via a C-shaped clamp 4a, and a temporary tent cart is mounted on the joist. Is removably fixed via a C-shaped clamp in the same manner as described above. The guide rail 20 is made of an H-shaped steel as shown in FIG.
A w or w 'mounting bracket 32 is attached by bolting, and a wire -w extending to the outside and a wire -w' extending to the inside of the building are fixed to the bracket via a shackle 33 as shown in the figure. . Of the two wires, the wire w 'extending toward the inside is fixed to an anchor (not shown) embedded in the concrete floor of the building while maintaining an angle of about 45 degrees. .

On the other hand, the stay wire w extending toward the outside of the building guides this to the tip of the stay rod 30 shown in detail in FIG. That is, an arc-shaped guide piece for projecting horizontally from the wall surface of the building B and, for example, at the tip end of a stay rod 30 made of H-shaped steel, for smoothing the conduction of the stay wire-w. 30a is welded, and a pin 3 is secured outside the guide piece so as to keep a gap enough to allow the wire-w to pass therethrough.
After the wire 0b is formed, the wire-w is drawn through the gap, and the wire-w is suspended vertically to be grounded via the earth anchor 34 embedded in the ground plane. In this way, it is not necessary to ground the stay wire -w which needs to be suspended outside the building far from the building, and the same fastening effect can be exerted even in a narrow site.

[0010] As the building is constructed, the external scaffolds 4 are also piled up high. However, since the scaffolds are fixed by the wall connecting rod 35 planted on the wall of the building, In, the above-mentioned stay wire -w or w 'may be removed.

Hereinafter, the structure of the temporary tent and the outline of the method of erection according to the present invention will be described. As shown in FIG. 1, the temporary tent of the present invention uses two mountain-shaped sub-frames formed of a pair of rafters pre-assembled on the ground and columns fixed to both lower ends thereof. A frame unit (hereinafter simply referred to as a unit) is assembled by connecting the frames with a support member composed of a purlin or a breath. It is preferable to attach a hanging scaffold to each sub-frame at the time of terrain as described later.

That is, in the drawings, reference numerals 1 and 1 denote a pair of rafters assembled in a mountain shape, and 2 and 2 denote posts fixed to both lower ends of the rafter 1. As shown in FIG. 5, the space between the pair of rafters and the space between the rafters and the struts are connected and bolted to each other by using insert connection fittings 12 or 14 provided at their ends. These members form the sub-frame 3 having a mountain shape. Then, a main house and a breath (these are sometimes simply referred to as support members 8) are passed between the subframes 3 and 3 arranged side by side so as to assemble the unit 9a assembled in a hut. Next, this unit was lifted by a crane using hanging metal fittings 33 described later on opposing external scaffolds 4 and 4 installed outside the structure B to be constructed, and attached to the external scaffolds. The lower part of the column 2 is fixed to a predetermined position of the movable carriage 5. Base plates 6 are previously provided at predetermined intervals on the movable trolley 5 to fix the sub-frame 3. The mountain-shaped sub-frame 3 is sequentially erected on the base plate 6 by using the pin joint 7, and the unit 9a is assembled and made independent.

Similarly, another unit 9b is assembled and lifted on the external scaffolds 4,4. In this way, the two units 9a and 9b are set as a set so as to be arranged side by side on the movable carriage 5, and fixed using the pin joint 7. Then, using a hanging scaffold attached to the units 9a and 9b arranged side by side at the time of terrain, pass the purlin between adjacent units, and use it for tents so that four frames and three spans are integrated as one block. Assemble the shed. After the assembly, the film material 10 is stretched on the upper surfaces of the roofs of the two units. Also, as shown in FIG. 2, the membrane material 10 is stretched on the roof between the units, and the assembly of the temporary tent of one block is completed.

Here, the structure of the rafter 1 and the support 2 of the subframe 3 used in the present invention will be described. Each of them is formed of a high-strength, lightweight structural material, and specifically, is formed of an aluminum alloy hollow elongated member 11 having a substantially rectangular or square cross section as shown in FIG. Further, as shown in FIG. 4, the hollow elongated member 11 is formed at its upper and lower ends with two opposing side walls 11a, 11a. The concave groove 13 can be used as a mounting groove for the film material 10 as shown in FIG. That is, as described above, the film material 10 is provided between the sub-frames constituting the tent roof.
Is installed. This film material has its both ends 10a inserted into the above-mentioned concave grooves 13, into which the holding beads 16 are inserted, so that the film material does not fall off from the sub-frame, and is formed along the frame. It is configured such that the membrane can be opened and closed by sliding in the inside 13.

The membrane material 10 is made of, for example, a polyester fiber blended canvas, the surface of which is waterproofed and, if necessary, the surface of which is flameproofed. However, the present invention is not limited to the embodiment. In addition, a winch winding rope mounting bracket 10b may be provided below the film material.

Next, details of the mobile trolley 5 will be described.
As described above, the movable trolley is mounted on the external scaffold 4 installed outside the structure B to be constructed, and when the tent is erected, the construction progress state of the structure is changed. It is installed and used on an external scaffold assembled according to FIGS. 6 to 8 show the movable cart of this embodiment.
This will be specifically described with reference to FIG. As shown also in FIG. 8, the movable carriage is rotatable at a predetermined interval between a pair of channel-type main members 16 and 16 arranged to face each other so as to open outward, and a web of the two main members. Drive wheel 1 that is supported
7 and a driven wheel 18, a connecting member 19 fixed so as to mutually connect the main members arranged opposite to each other, and a base plate 6 fixed to the upper surface of the truck. The base plate 6 is for erection of the columns 2 of the sub-frame 3 having a mountain shape as described above at equal intervals, and has a predetermined interval on the upper surface thereof so as to straddle the bogie main member. At this time, four base plates 6 are fixed horizontally, and a total of four sub-frames 3 are installed on the four base plates via the bin joint 7 at equal intervals. With this configuration, the four sub-frames described above are integrated, and run on a guide rail 20 provided on the external scaffold 4 as described below as one block.

In FIGS. 6 and 7, what is indicated by reference numeral 20 is
A guide rail on which the driving wheel 17 and the driven wheel 18 are mounted. This guide rail is made of H-shaped steel or I-shaped steel, and is laid on the scaffold 4 such that the flange surface on which the wheels travel is horizontal. Reference numeral 21 denotes a drive handle, which is configured so that the drive wheel 17 can be manually moved via a speed reduction winding mechanism 22 including a chain and a sprocket group. Incidentally, the drive wheels 17 can be run not only manually but also by using an electric mechanism, but are not shown. As shown in FIG. 8, a plurality of anti-sway rollers 23 and a plurality of wind-up prevention fittings 24 are also attached to the bogie main member 16 so as to bite the flange surface of the guide rail 20, Thereby, the bogie is held from the side and the lower side. Incidentally, reference numeral 25 denotes a bogie fixing bracket.

As shown in FIG. 9, a handrail-attached platform scaffold 26 can be attached to the movable platform before assembly on the ground. Further, it is possible to attach a hanging scaffold to the rafter 1 used in the present invention in advance, and an example is shown in FIG. As described above, the rafter 1 used in the present invention is formed from a hollow elongated member 11 having a substantially rectangular or square cross section, and two opposing side walls 11a, 11a of the hollow elongated member are provided with upper and lower ends. Since the recessed grooves 13, 13 opening in the direction are formed, the pair of lower grooves 13, 13 on the lower side are used as mounting grooves of the hanging scaffold mounting clamp device 27.

[0019]

As described above in detail, the temporary tent to which the present invention is applied has a pin structure, a fitting structure, or a simple structure that can be easily removed, including the external scaffold. In order to firmly fix the external scaffold on which the vehicle is to be installed, it is necessary to extend a stay wire from both sides of the scaffold toward the inside and outside of the building. Normally, as the mounting position of the temporary tent is higher, the grounding position of the wire is farther from the scaffold, so that extra space is required. However, according to the present invention, the extension direction of the extension wire extending outward from the wall surface of the building via the stay rod is bent, so that the temporary tent can be provided even if there is no room on the site. Is useful in that it can be applied to high places.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an outline of a temporary tent according to the present invention.

FIG. 2 is a cross-sectional front view showing the relative relationship between a building and an external scaffold.

FIG. 3 is an explanatory diagram showing a state in which a roof portion of a shed unit constituting a temporary tent is covered with a sheet material.

FIG. 4 is a detailed view of a frame member of a unit constituting the hut unit.

FIG. 5 is an enlarged view for explaining an assembled state of the hut unit.

FIG. 6 is a side view of a bogie on which a temporary tent is mounted.

FIG. 7 is a plan view of the same.

FIG. 8 is a partially enlarged front view showing an attachment relationship between the carriage and the guide rail.

FIG. 9 is a partially enlarged front view showing the relationship between a bogie mounted on an external scaffold, a temporary tent mounted thereon, and a bogie scaffold.

FIG. 10 is a cross-sectional front view showing an example when an external scaffold is fixed according to the present method.

FIG. 11 is a partially enlarged front view showing an attachment relationship between joists and stay wires installed on a framework scaffold as an external scaffold.

FIG. 12 is an explanatory view showing a fixed state of a stay wire for fixing an external scaffold outside a building.

[Explanation of symbols]

 W, W ‘stay wire 4 external scaffold 30 stay rod 31 joist 32 stay wire mounting bracket 33 shackle 34 embedded fitting 35 wall connecting rod

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tadanari Murai 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Tadashi Akahori 1-3-Chome Moto-Akasaka, Minato-ku, Tokyo 8 Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Mikio Hayashi 1-6-5 Nihonbashi Honcho, Chuo-ku, Tokyo Maruto Fuji Sheet Pile Co., Ltd. (72) Inventor Soichiro Konishi 1 Nihonbashi Honcho, Chuo-ku, Tokyo Chome 6-5 Maruto Sheet Pile Co., Ltd.

Claims (2)

(57) [Claims] 1. A structure to be constructed,
In a method of sequentially installing a pair of left and right frame scaffolds while stacking them and detachably assembling a disassemblable temporary tent on an upper surface of the scaffold, the scaffold is positioned at an upper layer of the plurality of frame scaffolds vertically stacked. A suspension wire is suspended in the left-right direction from both side surfaces of the scaffold, and of the suspension wires, at least a suspension wire extending toward the outside of the structure is horizontally extended from the outer wall surface of the structure. A method of fixing a scaffold for a temporary tent, wherein the scaffold is bent vertically via a stay rod and suspended in a vertical direction. 2. A stay wire is protruded horizontally from a wall surface of a building, and a stay wire is attached to a tip end of a stay rod made of H-shaped steel.
A guide rod is formed by welding an arcuate guide piece for smoothing the conduction of the wire, and forming a retaining pin outside the guide piece while keeping a gap large enough to allow the wire to pass through. 2. The method of fixing a scaffold for a temporary tent according to claim 1, wherein the stay wire extending to the outside of the building is bent and stretched by using the method.