JPH04136366A - Method for assembling framed scaffold and framed scaffold - Google Patents

Abstract

PURPOSE:To facilitate the work of installing a framed scaffold by using a scaffold board support frame and a first scaffold board to form a temporary scaffold, and using. the temporary scaffold for the work of temporarily mounting a steel beam to the beam mounting portion of a steel pole, and using the temporary scaffold and a support frame hanging hook to provide a framed scaffold. CONSTITUTION:Part of the horizontal bar 4a of each of two scaffold board support frames 4 is freely detachably fixed to each of the two opposite faces 1C of a steel pole 1. A first scaffold board 6 is placed between the respective horizontal bars 4a of the two scaffold support frames 4 each of which bars projects from the end face of the steel pole 1 and a support bar 11 comprising an iron pipe is placed. The steel pole 1 is erected and fixed at its end portion to a lower construction body and the hanging member of a hanged scaffold board support frame 5 is freely detachably fixed to the welded support hanging hook 2a of a steel beam 2 and a second scaffold board 7 is placed. The work of installing a temporary scaffold is thereby facilitated.

Description

[Detailed Description of the Invention] Industrial Application Field The invention of this application relates to a frame scaffolding used for beam installation work, etc.
This article relates to a method for assembling frame scaffolding using fixtures, hanging tools, etc. fixed to box-shaped steel columns and steel beams, and to frame scaffolding.

Conventional technology When constructing a building using box-shaped steel columns such as square steel pipes, a small support piece for attaching the beam is welded to the steel column, the steel beam is attached to this support piece, and then the end of the steel beam is There are cases where the steel column and the steel column are welded together.

In this case, a column stage is generally used to attach the steel beam to the steel column.

Problems to be Solved by the Invention However, since the column stage is bulky, it is difficult to place it in a narrow working space, and furthermore, the column stage has drawbacks such as high usage fees and high maintenance costs.

The problem to be solved by the invention of this application is to provide a frame scaffold for use in beam installation work etc. that does not have the above-mentioned drawbacks, in other words, a frame that can be easily attached to steel columns and steel beams and can be easily dismantled. The purpose of the present invention is to provide a method for assembling a scaffold and a frame scaffold.

Means for Solving the Problems The invention of this application employs the following configuration as a means for solving the problems described above.

The structure of the first invention of this application is that a scaffold board support frame is formed by fixing vertical bars to both ends of the horizontal bars, the vertical bars are fixed to both ends of the horizontal bars, and a hanging member is provided in the middle of the horizontal bars. The suspension scaffold plate support frame is formed by attaching the support frame, and before the steel column is erected, the steel column is attached using a pair of support frame fixtures fixed respectively to two opposite sides of the steel column below the beam attachment part. The middle part of the horizontal rod of the scaffold board support frame is detachably attached to two opposing surfaces, and the first scaffold board is installed between the horizontal rod of one scaffold board support frame and the horizontal rod of the other scaffold board support frame. to form a temporary scaffold, then erect a steel column and fix its lower part to the lower structure, and use the temporary scaffold to temporarily attach the steel beam to the beam attachment part of the steel column. Then, detachably attach the suspension members of the horizontal rods of the suspended scaffold board support frame to the support frame suspension fixtures that have been fixed in advance to the steel beams, and then attach the horizontal rods of the scaffold board support frame and the horizontal rods of the suspended scaffold board support frame. A second scaffold board is installed by spanning between the vertical bars of the scaffold board support frame and the vertical bars of the hanging scaffold board support frame, and a handrail bar is spanned between the vertical bars of the scaffold board support frame and the vertical bars of the hanging scaffold board support frame, so that the handrail bars can be attached to and detached from each vertical bar. A method for assembling a frame scaffold, which is characterized in that it is fixed to form a main frame scaffold.

Further, in the configuration of the second invention of this application, the scaffold board support frame is formed by fixing vertical bars to both ends of the horizontal bars, the vertical bars are fixed to both ends of the horizontal bars, and the vertical bars are fixed to both ends of the horizontal bars, and the vertical bars are fixed to both ends of the horizontal bars. A hanging scaffold board support frame is formed by attaching the hanging members, and the scaffolding is attached to the two opposing sides of the steel column using the support frame fixtures fixed to the two opposing sides of the steel column below the beam attachment part. The middle of the horizontal rod of the board support frame is removably attached, and the first scaffolding board is installed by spanning between the horizontal rod of one scaffold board support frame and the horizontal rod of the other scaffold board support frame, and the steel frame is installed. The suspension members of the horizontal rods of the suspended scaffold board support frame are removably attached to the support frame suspension fixtures fixed to the steel beams attached to the beam attachment parts of the columns, and the horizontal rods of the scaffold board support frame and the sides of the suspended scaffold board support frame are attached. A second scaffolding board is installed by spanning between the rods, and a handrail rod is installed between the vertical rods of the scaffold board support frame and the vertical rods of the hanging scaffold board support frame, so that the handrail rods can be freely attached to and detached from each vertical rod. The frame is characterized by being fixed to the scaffold.

In a preferred embodiment, a box-type steel frame is used as the steel column, and the support frame fixture for fixing to the steel column is composed of a support piece and a clamp attached to the support piece, and the support piece is welded, etc. It is fixed to the steel column by. The ladder used by workers to climb onto the scaffolding frame has its lower part removably fixed to a ladder support piece fixed to a steel column, and its upper part removably attached to a ladder support rod fixed to the horizontal beam of the scaffold board support frame. Freely hold fast.

In a preferred embodiment, the scaffold board support frame is formed by welding the lower part of the vertical bar to both ends of the horizontal bar, and a clamp is fixed to the top of the vertical bar, and the suspended scaffold board support frame is formed by welding the lower part of the vertical bar to both ends of the horizontal bar. Welding the lower part of the vertical rod to the center of the horizontal pipe, welding the lower part of the hanging member to the center of the horizontal pipe,
Attach a stopper to the top of the vertical pipe to hold the handrail rod. The hanging member is composed of a pair of hanging rods and a mounting piece attached to the upper part of the hanging rod, and the pair of hanging rods are arranged so that the width thereof is narrow at the upper end and becomes wider as it goes downward. , the mounting piece has multiple holes drilled in it that match the multiple holes drilled in the support frame hanging tool fixed to the steel beam, so that the hanging scaffold board support frame does not swing to the bottom of the steel beam via the hanging member. It can be fixed in a removable manner.

Handrail rods are secured with clamps or fasteners attached to the vertical rods of the scaffold board support frame and suspended scaffold board support frame.

the tops of those stiles (and the middle of the stiles, if necessary)
It is removably fixed to the As a clamp or stopper, use a normal one used for assembling steel pipe scaffolding, etc.
Any type of material may be used as long as the handrail rod can be detachably fixed to the vertical rods of the scaffold board support frame and the suspended scaffold board support frame. In addition, the handrail rods spanning between the vertical rods of the suspended scaffold board support frame will pass through the through holes in the steel beams.

As the first and second scaffolding boards, ordinary ones with locking protrusions provided at both ends of a steel cloth frame are used, and the locking protrusions are attached to the sides of the scaffold board support frame and the hanging scaffold board support frame. Engage with the rods and attach to their horizontal rods.

The frame scaffold of this invention is mainly used for attaching beams to steel columns, but it can also be used for other tasks.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 8.

First, we will explain the main parts used.

As shown in Figures 1 to 3, a beam attachment piece 1 is placed at a position corresponding to the beam attachment part of the joint part of a steel frame column 1 made of a square steel pipe.
A is fixed, and a ladder support piece 1b is fixed to the lower part of the steel column 1 and the upper part of the joint part thereof. A pair of support frame fixtures 3 are each welded to portions of the two opposing surfaces 1c below the joint portion of the steel frame column 1 that are on the same horizontal plane. In a preferred embodiment, the support frame fixture 3 is attached to an end portion 3a1 of a support piece 3a made of a short steel plate, as shown in FIG.
Although the base 3b of the clamp 3b is welded to the support piece 3a, the clamp 3b may be detachably attached to the support piece 3a.

As shown in Fig. 3, a support frame hanger 2a made of a short steel plate with a plurality of bolt holes bored is welded to the lower surface of the steel beam 2 made of H-beam steel in the longitudinal direction. and a through hole 2b is formed in the web of the steel beam above the hanging device 2a.
wear it.

As shown in Fig. 5, the scaffold board support frame 4 is constructed by welding the lower part of the vertical rod 4b to both ends of the horizontal rod 4a, attaching a clamp 4c to the upper part of the vertical rod 4b, and attaching a stopper 4d to the middle part. form. As shown in FIG. 6, the hanging scaffold board support frame 5 is
The lower part of the vertical rod 5b is welded to both ends of the horizontal rod 5a, and the horizontal rod 5
The lower part of the hanging member 5c is welded to the center of the vertical pipe 5b, and the stoppers 5d□, 5d are attached to the upper part and the middle part of the vertical pipe 5b. The hanging member 5c includes a pair of rods 5c arranged such that the distance between them is narrow at their upper ends and becomes wider toward the bottom, and a short chevron welded to the upper ends of the pair of rods 5cm. The mounting piece 5c is made of steel, and the mounting piece 5c has a plurality of holes that match the plurality of holes drilled in the support frame hanger 2a attached to the steel beam 2, and the hanging member 5C is made of steel. The hanging scaffold board support frame 5 can be fixed to the lower part of the steel beam so that it does not swing.

Next, the method of assembling the frame scaffold will be explained.

As shown in Fig. 7, the steel column 1 is laid down,
Using the clamps 3b of the support frame fixtures 3, which are welded in pairs to the two opposing surfaces 1-c of the steel column 1, the middle parts of the horizontal rods 4a of the two scaffold board support frames 4 can be detachably attached to the steel column 1. Fixed to.

The first scaffolding board 6 is spanned between the parts of the horizontal rods 4a that protrude from the end faces of the steel columns of the two scaffolding board support frames 4, and the first scaffolding board 6 is strung between the parts of the horizontal rods 4a that protrude from the end faces of the steel columns of the two scaffolding board support frames 4, and the locking parts 6a at both ends of the first scaffolding board 6 are attached to the sides of the scaffolding board support frame 4. Attach to rod 4a. Further, as shown in FIGS. 2 and 7, a support rod 1 made of iron pipe is installed between the end portions of each horizontal rod 4a of the scaffold board support frame 4.
1, and using the support rods 11 and clamps, attach each horizontal rod 4a.
Fixed to. The lower part of the ladder 12 is removably fixed to the ladder support piece 1b, and the upper part of the ladder 12 is removably fixed to the support rod 11 using a clamp or the like.

Next, the steel column 1 is erected, and its lower part is fixed to a predetermined position on the lower frame. The worker uses the ladder 12 to reach the first scaffolding board 6.
Using the first scaffold board 6 and the lifeline attached to the steel column 1, the end of the steel beam 2 is fixed to the beam attachment piece 1a of the steel column 1 with bolts and nuts. Then, the mounting pieces 5c of the hanging members 5c of the suspended scaffold board support frame 5 are removably fixed to the support frame hanger 2a welded to the lower surface of the steel beam 2 by passing bolts through the bolt holes bored therein.

A second scaffold board 7 is bridged between the horizontal rod 4a of the scaffold board support frame 4 and the horizontal rod 5a of the suspended scaffold board support frame 5, and the locking pieces 7a at both ends of the second scaffold board 7 are engaged with the horizontal rods 4a and 5a. Then, the scaffold board 7 is attached to the scaffold board support frame 4 and the suspended scaffold board support frame 5. Also,
A handrail rod 8.9 is spanned between the vertical rod 4b of the scaffold board support frame 4 and the vertical rod 5b of the suspended scaffold board support frame 5, and the outer end of the handrail rod 8 is suspended from the vertical rod 4b of the scaffold board support frame 4. It is removably fixed to the upper end with a stopper 5d, and the inner end of the handrail rod 8 is attached to the scaffold board support frame 4.
It is removably fixed to the upper end of the vertical rod 4b with a clamp 4c. The inner end of the handrail rod 9 is removably fixed to the middle of the vertical rod 4b of the scaffold board support frame 4 with a stopper 4d, and the outer end of the handrail rod 9 is fixed to the middle of the vertical rod 5b of the suspended scaffold board support frame 5. It is removably fixed with a stopper 5d, and the handrail rod 10 is passed through the through hole 2b of the steel beam 2, and is spanned between the vertical rods 5b of the hanging scaffold board support frame 5, and both ends of the handrail rod 10 are connected to the vertical rods. The stopper 5d is on the top of 5b.
Fix it removably with □ to complete the frame scaffold.

Then, a worker stands on the frame scaffold and performs work such as attaching the steel beam to the steel column by welding, thereby fixing the steel beam to the steel column. After that, when the frame scaffolding is no longer needed for work such as laying corrugated iron plates on steel beams, handrail rods 8 to 10,
Second scaffold board 7, hanging scaffold board support frame 5, first scaffold board 6
, remove the scaffold board support frame 4, etc. one after another, and finally, if necessary, cut the support frame fixture 3, ladder support piece 1b, and support frame hanger 2a from their bases to complete the dismantling of the frame scaffold. .

Note that as the scaffold board support frame 4, an existing passage support frame can be used, and as the hanging scaffold board support frame 5, a support frame suspended from an existing steel beam or the like can be used.

Effects of the Invention The invention of the method for assembling a frame scaffold of this application forms a temporary scaffold with the scaffold plate support frame and the first scaffold plate in the middle of assembling the frame scaffold, and uses this temporary scaffold to assemble the beam of the steel column. The temporary installation of the steel beams to the attachment part is performed, and the subsequent assembly of the frame scaffold is performed using the temporary scaffolding and the support frame hangers fixed to the steel beams, making the scaffold assembly work easy and safe. This makes it easier to temporarily attach the steel beam to the beam attachment part of the steel column.

In addition, the invention of the frame scaffold of this application fixes a support frame fixture to a steel column, fixes a support frame hanger to a steel beam, and uses the support frame fixture and support frame hanger to create a ready-made scaffold. The frame scaffold is formed simply by removably assembling the board support frame, suspended scaffold board support frame, ready-made first and second scaffold boards, and ready-made handrail rods, so only parts with a simple configuration are required. It can be used to form a frame scaffold, its assembly is easy, and the frame scaffold can be provided at low cost.

When the support frame attachment tool is composed of a support piece and a clamp attached to the support piece, the work of attaching the scaffold board support frame to the steel column becomes easy.

When the handrail rod is passed through a through hole drilled in the steel beam and spanned between the vertical rods of the suspension scaffold board support frame, and both ends of the handrail rod are removably fixed to the upper part of the vertical rod, the frame Most of the periphery of the scaffold can be surrounded by handrails, increasing the safety of work performed on the frame scaffold.

[Brief explanation of drawings]

Figures 1 to 8 are for explaining the present invention in detail. Figure 1 is a plan view of the frame scaffold, Figure 2 is a side view of the frame scaffold, and Figure 3 is a diagonally downward view of the frame scaffold. Figure 4 is a side view of the support fixed to the steel column, Figure 5 is a front view of the scaffold board support frame, Figure 6 is a front view of the suspended scaffold board support frame, and Figure 7 is the steel frame. FIG. 8 is a perspective view showing a state in which a scaffold board support frame and a first scaffold board are attached to a column, and 8th UiA is a perspective view showing a state in which a steel frame column is erected. In the figure, 1 is a steel column, 1a is a beam attachment piece, 1b is a ladder support piece, 2 is a steel beam, 2a is a support frame hanger, 2b is a through hole, 3
3 is a support frame fixture, 3a is a support piece, 3b is a clamp, 4 is a scaffold board support frame, 5 is a hanging scaffold board support frame, 4a and 5a
is the horizontal rod, 4b and 5b are the vertical rods, 4c is the clamp, 4d
, 5d and 5d are fasteners, 5c is a hanging member, 6 is a first scaffolding board, 7 is a second scaffolding board, 8.9 and 10 are handrail rods, 11 is a support rod, and 12 is a ladder. . Patent applicant: Takenaka Corporation

Claims (1)

[Claims] 1. A scaffold board support frame is formed by fixing vertical bars to both ends of the horizontal bars, the vertical bars are fixed to both ends of the horizontal bars, and a hanging member is attached to the middle of the horizontal bars. When the suspended scaffold board support frame is formed and before the steel column is erected, the two opposite sides of the steel column are attached using the support frame fixtures fixed respectively to the two opposite sides of the steel column below the beam attachment part. The middle of the horizontal rod of the scaffold board support frame is removably attached to the frame, and the first scaffold board is installed by spanning between the horizontal rod of one scaffold board support frame and the horizontal rod of the other scaffold board support frame. to form a temporary scaffold, then erect a steel column and fix its lower part to the lower frame, use the temporary scaffold to temporarily attach the steel beam to the beam attachment part of the steel column, and then install the steel beam. The hanging member of the horizontal rod of the suspended scaffold board support frame is removably attached to the support frame hanging tool that has been fixed in advance to the support frame, and a second Scaffolding boards are straddled and installed, and handrail bars are spanned between the vertical bars of the scaffold board support frame and the vertical bars of the hanging scaffold board support frame, and the handrail bars are removably fixed to each vertical bar to form the main frame. A method for assembling a frame scaffold, characterized by forming a scaffold. 2. A scaffold board support frame is formed by fixing vertical bars to both ends of the horizontal bars, and a hanging scaffold board support frame is formed by fixing the vertical bars to both ends of the horizontal bars and attaching a hanging member to the middle of the horizontal bars. Using the support frame fixtures that are formed and fixed to the two opposing sides of the steel column below the beam attachment part, the middle of the horizontal beam of the scaffold board support frame can be attached and detached to the two opposing sides of the steel column. At the same time, the first scaffold board is installed by spanning between the horizontal beam of one scaffold plate support frame and the horizontal beam of the other scaffold plate support frame, and the steel beam is attached to the beam attachment part of the steel column. The suspension members of the horizontal bars of the suspended scaffold board support frame are detachably attached to the fixed support frame hanging tools, and a second scaffold board is installed between the horizontal bars of the scaffold board support frame and the horizontal bars of the suspended scaffold board support frame. A frame scaffold characterized in that the frame scaffold is installed by passing it across, and has a handrail rod spanned between the vertical rods of the scaffold board support frame and the vertical rods of the hanging scaffold board support frame, and the handrail rods are detachably fixed to each vertical rod. 3. The frame scaffold according to claim 2, wherein the support frame fixture is composed of a support piece and a clamp attached to the support piece. 4. A handrail rod is passed through a through hole drilled in a steel beam, and is spanned between vertical rods of a suspension scaffold board support frame, and both ends of the handrail rod are removably fixed to the upper part of the vertical rod. Claim 2
or the frame scaffold described in 3. 5. Ladder support rods are spanned between the horizontal rods of one scaffolding board support frame and the other scaffolding board support frame, and are removably fixed to each horizontal rod, and the ladder support rods are installed between the joints of the steel columns. Claims 2 to 4, characterized in that the lower part of the climbing ladder is detachably fixed to the ladder support piece fixed to the lower part, and the upper part of the climbing ladder is detachably fixed to the ladder support rod. Frame scaffolding as described in any one of the sections.