JP7202088B2 - Temporary scaffold forming jig and temporary scaffold forming method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a temporary scaffold forming jig and a temporary scaffold forming method for forming a temporary scaffold to be installed side by side when constructing or repairing a building such as a collective housing.

BACKGROUND ART Temporary scaffolding is provided in order to carry out construction work from the outdoor side when constructing or repairing buildings such as collective housing. In particular, in buildings with seismic isolation equipment, the building will sway in a way that is different from the shaking of the ground, so there is a risk that the building will collide with the temporary scaffolding installed on the ground and not only damage it, but also cause the temporary scaffolding to collapse. there were. Therefore, it was necessary to support the temporary scaffolding on the building and raise the temporary scaffolding from the ground so that the building would not collide with the temporary scaffolding during an earthquake.

Therefore, if the tip of the veranda of the building is a thick concrete frame (in the case of handrails made of the frame), a method of floating temporary scaffolding via a predetermined bracket fixed to the tip of the veranda is adopted, and avoid collisions with temporary scaffolding. Also, a method of floating a temporary scaffolding via a predetermined bracket fixed to a side wall portion of a building has been disclosed (for example, Patent Literature 1). According to this method, by dismantling and removing the lower part of the temporary scaffolding according to the progress of construction, the lower space around the frame under construction can be effectively used as a passageway or material storage area.

Japanese Patent Application Laid-Open No. 2001-323654

However, there are cases where a given bracket cannot be fixed to the tip of the veranda. For example, there are cases where the tip of the veranda is too high to fix a predetermined bracket (in the case of a handrail made of aluminum or glass) or where there is no veranda. In addition, even if the method disclosed in Patent Document 1 is adopted, a temporary scaffold must first be installed on the ground.

Generally, temporary scaffolding is frame-like and elongated and difficult to stand on the ground, so it is supported at least by the building so as not to collapse. However, depending on the magnitude of shaking caused by an earthquake, the building and the temporary scaffolding may shake differently regardless of the presence or absence of seismic isolation equipment, and the building may collide with the temporary scaffolding or the temporary scaffolding may collapse.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a temporary scaffold forming jig and a temporary scaffold forming method that enhance the earthquake resistance of temporary scaffolds regardless of the structural environment of a building, the progress of construction work, and the like.

A temporary scaffolding forming jig according to the present invention is characterized by comprising a floorboard laid on the ground, and a sliding bearing disposed between the floorboard and a post supporting the temporary scaffold installed alongside a building. .

It is desirable that the coefficient of static friction of the sliding bearing with respect to the floor plate is 0.4 or less.

Preferably, the stanchions are two adjacent stanchions out of at least four stanchions forming the temporary scaffold.

It is desirable that the temporary scaffolding jig further comprises a fixing member for fixing the temporary scaffold to the building.

The method for forming a temporary scaffolding according to the present invention comprises laying a floorboard on the ground, and inserting a sliding support between two adjacent pillars out of at least four pillars supporting a temporary scaffold to be attached to a building and the floorboard. and fixing the temporary scaffolding to the building with a fixing member.

According to the temporary scaffold forming jig and the temporary scaffold forming method according to the present invention, the seismic resistance of the temporary scaffold can be enhanced regardless of the structural environment of the building, the progress of the construction work, and the like.

It is a figure which shows the state in which the temporary scaffolding formation jig in one Embodiment of this invention was put together with the building. It is a figure which shows an example of the sliding bearing body in one Embodiment of this invention.

Hereinafter, the structure and usage of a temporary scaffolding jig according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

Temporary scaffolding jigs improve the seismic resistance of temporary scaffolds that are installed to secure work space during construction or repair of any building, regardless of the presence or absence of earthquake-resistant equipment or seismic isolation equipment, the progress of construction, etc. It can be widely applied to temporary scaffolds installed as construction scaffolds for various buildings.

As shown in FIG. 1, the temporary scaffold forming jig includes a floorboard 5 laid on the ground and a sliding bearing disposed between the floorboard 5 and the post 2 that supports the temporary scaffold 1 attached to the building 6. 4. The temporary scaffolding 1 is composed of rod-like support columns 2 each having at least four rods and scaffolding parts 3 provided for each floor on the support columns 2 so that workers can come and go along the building 6. - 特許庁
With such a configuration, the seismic resistance of the temporary scaffolding 1 can be enhanced regardless of the structural environment of the building, the progress of construction work, or the like. That is, the sliding support 4 on which the temporary scaffolding 1 is arranged slides on the floor board 5 according to the shaking of an earthquake, and the support 2 of the temporary scaffolding 1 is held on the sliding support 4 as it is. can avoid the risk of damage or collapse of Therefore, the seismic resistance of the temporary scaffolding 1 can be enhanced regardless of the behavior of the building 6, the presence or absence of handrails made of the framework, the progress of construction work, and the like.
In addition, the temporary scaffolding 1 may be supported by a predetermined means with respect to the ground, the sole plate 5 and/or the building 6 . The floorboard 5 may or may not be in contact with the building 6, and may or may not be fixed. If the ground has properties equivalent to those of the floorboard 5, the floorboard 5 may not be laid.

The coefficient of static friction of the sliding bearing 4 with respect to the sole plate 5 is 0.4 or less. Specifically, the sliding bearing 4 is made of a galvanized steel sheet having a static friction coefficient of 0.4 or less with respect to the steel floor plate 5 . As shown in FIG. 2, the slide bearing 4 is a container-like one comprising a rectangular bottom surface 4a and four side surfaces 4b, 4c, 4d and 4e. The size of the sliding bearing 4 is about the same as the area of the base of the single strut 2 or the area of the range formed by the struts 2, and the strut or struts 2 are arranged on four sides 4b, 4c, 4d, 4e. It is surrounded.
With such a configuration, the sliding support 4 slides without following the sole plate 5 that shakes according to the ground, so that the temporary scaffolding 1 on the sliding support 4 can be maintained stationary with respect to the building 6. - 特許庁On the other hand, if the coefficient of static friction of the sliding bearing 4 exceeds 0.4, the sliding bearing 4 will not slide on the sole plate 5, and the temporary scaffolding 1 may topple over.
The slide bearing 4 may be a planar plate material, or may be adhered to the rear surface of the support 4 . The sliding bearing 4 may have L-shaped corner portions rising from the four corners of the bottom surface 4a instead of the four side surfaces 4b, 4c, 4d and 4e. The slide bearing 4 and the floor plate 5 may be made of any metal or resin as long as they satisfy the static friction coefficient conditions described above. The sole plate 5 is preferably made of a material having a shape that does not slip on the ground and a coefficient of static friction.

The struts 2 arranged on the sliding bearing 4 are two adjacent struts out of at least four struts forming a temporary scaffold. Two adjacent struts are closely spaced struts 2 each surrounded by four sides 4b, 4c, 4d, 4e of the sliding bearing 4. As shown in FIG.
With such a configuration, the frictional resistance of the slide bearing 4 against the sole plate 5 is suppressed so as not to increase, and it can be easily transported and diverted. This is because if the slide bearings 4 are provided for each of the struts 2, the pressure applied to the slide bearings 4 increases, thereby increasing the frictional resistance. On the other hand, if the sliding bearings 4 are provided between the struts 2 with wide intervals or for all the four struts 2, the size of the sliding bearings 4 will be too large and inconvenient.

As shown in FIG. 1 , the temporary scaffolding jig further includes fixing members 7 for fixing the temporary scaffolding 1 to the building 6 . The fixing member 7 is made of metal, and includes a rod-shaped member 7a, a rod-shaped member 7b fixed so as to intersect the rod-shaped member 7a at right angles, and each end of the rod-shaped member 7a and the rod-shaped member 7b for reinforcement so as to intersect obliquely with the rod-shaped member 7a and the rod-shaped member 7b. It is formed in a substantially triangular shape together with the rod-like member 7c fixed to the portion. The fixed members 7 are positioned below the building 6 and the temporary scaffolding 1 , the rod-shaped member 7 a is fixed to the building 6 and the rod-shaped member 7 b is fixed to the temporary scaffold 1 .
With such a configuration, the temporary scaffolding 1 is firmly connected to the building 6, and the temporary scaffolding 1 follows the shaking of the building 6 caused by an earthquake. 1, the seismic resistance of the temporary scaffolding can be further enhanced.
The fixing member 7 may be of any shape and material as long as the temporary scaffolding 1 can be fixed to the building 6 .

Next, a method for forming a temporary scaffold will be described with reference to FIG.

A temporary scaffolding 1 is assembled so as to be placed on a floor board 5 laid on the ground and alongside a building 6. - 特許庁The temporary scaffolding 1 includes at least four posts 2 and a scaffolding 3. After the temporary scaffolding 1 is assembled, a sliding bearing 4 is placed between the sole plate 5 and two adjacent pillars 2. - 特許庁Furthermore, a fixing member 7 is fixed to both the building 6 and the temporary scaffolding 1 so that the lower portions thereof are connected to each other.
With this method of forming the temporary scaffolding 1, the sliding bearing 4 on which the temporary scaffolding 1 is arranged slides on the floor board 5 in accordance with the shaking of an earthquake, and the pillars 2 of the temporary scaffolding 1 remain on the sliding bearing 4. Therefore, the temporary scaffolding 1 can be prevented from being damaged or collapsed, and the seismic resistance of the temporary scaffolding 1 can be improved regardless of the structural environment of the building, the progress of construction work, or the like. In addition, since the pillars 2 of the temporary scaffolding 1 are held on the sole plate 5 via the sliding bearings 4, it can be applied to general temporary scaffolding. In addition, when a building with seismic isolation equipment sways due to an earthquake or the like, the temporary scaffolding 1 responds to the building body by means of the sliding bearing 4. Therefore, the building body and the temporary scaffolding will not be damaged. It is also possible to prevent the temporary scaffold from collapsing.
Any method or procedure may be used as the temporary scaffold formation method as long as the object of the present invention can be achieved and the desired effects can be obtained.

The present invention is not limited to the embodiments described above, and can take various configurations or embodiments without departing from the scope of the invention.

1 Temporary Scaffolding 2 Post 3 Scaffolding Part 4 Sliding Bearing Body 5 Bottom Board 6 Building 7 Fixing Member

Claims (5)

a floorboard laid on the ground;
A sliding bearing disposed between a support for supporting a temporary scaffolding attached to a building and the floor plate ,
A temporary scaffold forming jig , wherein the sliding support has a rectangular bottom surface and side surfaces rising from each side of the bottom surface . The temporary scaffold forming jig according to claim 1, wherein the coefficient of static friction of the sliding bearing with respect to the sole plate is 0.4 or less. The temporary scaffold forming jig according to claim 1 or 2, wherein the pillars are two adjacent pillars among at least four pillars forming the temporary scaffold. The temporary scaffolding jig further comprises
The temporary scaffold forming jig according to any one of claims 1 to 3, further comprising a fixing member for fixing the temporary scaffold to the building. Laying a slab on the ground
A container-like sliding support is placed between two adjacent pillars out of at least four pillars for supporting a temporary scaffold installed in a building and the floor plate,
A method for forming a temporary scaffold, comprising fixing the temporary scaffold to the building with a fixing member.

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