JPH064254U - Steel frame scaffolding - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a lightweight scaffold for erection of steel frames while also making it lighter. [Structure] The steel-frame-construction scaffolding 1 includes a bearing portion 5 welded to a corner portion of the steel pipe column 2 and a scaffolding main body 6 attached to the bearing portion 5. The bearing portion 5 has a through hole 17 penetrating in the vertical direction. The scaffold body 6 includes a support rod 8 formed by bending a steel rod into a crank shape, a steel net body 9 attached to the support rod 8, and a steel handrail body 10 attached to the support rod 8. Become. [Effect] Since the enclosing plate and the mounting hardware can be eliminated, the scaffold body can be made lightweight, and the cost required for the scaffold body can be reduced because inexpensive steel is used.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a scaffold for steel erection, and more particularly to a scaffold for steel erection suitable for use in on-site assembly work of steel members such as assembling columns and beams in a steel structure.

[0002]

[Prior art]

 Conventionally, a general steel frame erection scaffold has an aluminum work plate that is mounted in a horizontal position on which a worker is placed, an aluminum handrail that is attached to the work plate in a fence shape, and surrounds the handrail. It consists of an aluminum enclosing board and a metal fitting that is attached to the steel pipe pillar of the building. A handrail, a surrounding plate, and a mounting hardware are fixed to the work plate. The mounting hardware is composed of a projecting portion connected to the tip metal of the steel pipe column by a fastening member such as a bolt, and a reinforcing member for supporting the work plate from the steel pipe column.

In such a steel structure erection scaffold, a futures metal object is welded and fixed to a steel pipe column in a factory or the like in advance. The steel pipe pillar is erected, and the working plate is fixed to the future metal fitting of the steel pipe pillar with a mounting hardware. At this time, the reinforcing member is attached to the steel pipe column, and the protruding portion is attached to the pre-attached metal object of the steel pipe column with the fastening member. After that, the steel handrail and the enclosing plate are welded and fixed to the work plate.

[0004]

[Problems to be solved by the device]

 However, since the work plate, the handrail body, and the surrounding plate are made of an aluminum material, the steel frame scaffolding is easily damaged and expensive. The steel frame scaffolding is composed of a work plate, a handrail, an enclosing plate, and a mounting hardware, and the mounting hardware is composed of a protrusion and a reinforcing member. A large number of members are incorporated into the erection scaffold, which increases the weight of the steel erection scaffold. Further, since the work plate and the handrail are loaded separately and the scaffold for steel-frame erection is assembled on site, the work for constructing the scaffold for steel-frame erection is complicated.

The present invention effectively solves the above problems, and an object thereof is to provide an inexpensive and lightweight scaffold for steel erection.

[0006]

[Means for Solving the Problems]

 The steel erection scaffold of the present invention is used for fixing beams extending horizontally from each side of a rectangular steel pipe column, and is a steel erection scaffold installed between adjacent beams. The steel pipe column comprises a bearing portion welded to a corner portion of the steel pipe column, and a scaffolding body attached to the bearing portion. The bearing portion is configured to have a through hole penetrating in the vertical direction. The shaft is formed by bending the rod into a crank shape and is positioned in the vertical direction. It includes a mesh body mounting portion that extends horizontally from the upper end of the shaft portion, and a handrail body mounting portion that extends upward from the tip of the mesh body mounting portion. A supporting rod, a steel net body horizontally attached to the net attachment portion, and a steel handrail body attached to the handrail attachment portion and having side portions adjacent to the beams, respectively. The scaffold body has a shaft portion of the support rod that extends through the bearing portion. Ru der which is characterized by comprising capable fitted removably into the hole.

[0007]

[Action]

 The steel erection scaffold of the present invention is used to fix a beam extending horizontally from each side of a square steel pipe column, and the steel erection scaffold is installed between adjacent beams, and the corners of the steel pipe column are installed. Since the bearing portion is welded to the portion and the scaffold body is attached to the bearing portion, the scaffold body is installed between the steel pipe column and the adjacent beam. Since the through hole penetrates through the bearing portion in the vertical direction, the through hole is arranged in parallel with the steel pipe column. In the scaffold body, a steel net body and a steel handrail body are attached to a support rod formed by bending a steel rod into a crank shape. In this support rod, the shaft portion is detachably fitted in the through hole of the bearing portion in the vertical direction, the steel net body is attached to the horizontally extending net body attaching portion, and the handrail body is set upward. It is attached to the extended handrail attachment part.

[0008]

【Example】

 Hereinafter, an embodiment of the scaffold for steel erection of the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, reference numeral 1 is a steel-framed scaffolding, and this steel-framed scaffolding 1 is used to fix a beam 4 extending horizontally from each side part 3 of a square steel pipe column 2 in cross section. The bearing portion 5 is installed between the adjacent beams 4 and is welded to the corner portion of the steel pipe column 2, and the scaffold body 6 is attached to the bearing portion 5.

The bearing portion 5 is made of a steel tubular body and has a through hole 17 penetrating in the vertical direction and a welded portion 7 fixed to a corner portion of the steel pipe column 2. The scaffold body 6 includes a support rod 8 formed by bending a steel rod into a crank shape, a steel net body 9 horizontally attached to the support rod 8, and a steel rod attached to the support rod 8. It is composed of a handrail body 10.

As shown in FIG. 2, the support rod 8 has a shaft portion 11 positioned vertically, a net body mounting portion 12 extending horizontally from the upper end of the shaft portion 11, and a tip of the net body mounting portion 12. And a handrail body mounting portion 13 extending upward from. The shaft portion 11 penetrates the through hole 17 of the bearing portion 5 and is detachably fitted into the through hole 17. A split pin 25 for preventing the shaft portion 11 from coming off from the through hole 17 is inserted in the shaft portion 11 projecting downward from the through hole 17.

The handrail body 10 includes a plurality of (four in the figure) vertical bars 15 extending in the vertical direction from the steel net body 9 and a plurality of (two in the figure) orthogonal to the vertical bars 15. And a horizontal bar 16 of. The horizontal bar 16 is bent at a position along the edge of the net body 16, and both ends thereof are adjacent to the beams 4.

In the support rod 8, as shown in FIG. 3, the shaft portion 11 and the mesh body mounting portion 12 are fixed by the shaft portion reinforcing plate 18, and the mesh body mounting portion 12 and the mesh body 9 are connected to each other. It is fixed by a reinforcing plate 19 for. As shown in FIG. 4, the shaft reinforcing plate 18 is detachably fitted into a slit 20 formed in the bearing hole 5 through hole 17. On the other hand, the mesh reinforcing plate 19 extends in a direction orthogonal to the extending direction of the mesh mounting portion 12, and is fixed to the mesh mounting portion 12 and the lower portion of the mesh 9.

In such a steel-frame-construction scaffolding 1, a bearing portion 5 is welded to a corner portion of a steel pipe column 2 in advance at a factory or the like, and a scaffold body 6 is assembled. When the scaffolding body 6 is assembled, the support rod 8 is bent and the net body 9, the handrail body 10, the shaft reinforcing plate 18, and the net reinforcing plate 19 are fixed to the support rod 8.

After that, the steel pipe column 2 is erected, the scaffold body 6 is lifted by a lifting equipment such as a crane, and the shaft portion 11 of the support rod 6 is inserted into the through hole 17 of the bearing portion 5. At this time, the reinforcing plate 18 for the shaft portion is fitted into the slit 20 of the through hole 17, and the reinforcing plate 18 for the shaft portion is sandwiched by the slit 20. Therefore, the rotation of the scaffold body 6 is prevented, and the steel frame construction is prevented. The scaffold 1 for people is constructed. A worker is placed on the scaffold 1 for constructing a steel frame, and the beam 4 adjacent to the worker is fixed to the steel pipe column 2 by welding or the like.

According to such a steel-frame-construction scaffolding 1, it is used when fixing the beams 4 extending in the horizontal direction from the respective side portions 3 of the rectangular steel pipe columns 2, and is installed between the adjacent beams 4. Because of the configuration, the workability of fixing the beam 4 can be improved, and the rotation of the steel-framed scaffolding 1 is prevented by the adjacent beam 4, so that the safety of the steel-framed scaffolding 1 can be improved.

The steel frame erection scaffolding 1 is composed of a bearing portion 5 welded to a corner portion of the steel pipe column 2 and a scaffolding main body 6 attached to the bearing portion 5, so that it is used in a factory or the like. Since the bearing portion 5 can be provided on the steel pipe column 2 and the scaffolding body 6 can be assembled, the assembling work of the scaffolding body 6 can be eliminated on site, and the workability of the steel-frame erection scaffolding 1 can be improved. Can be improved.

The bearing portion 5 is configured to have a through hole 17 penetrating in the vertical direction, and the scaffold main body 6 includes a support rod 8 formed by bending a steel rod into a crank shape, and the support rod 8. Since it is composed of the steel net body 9 to be attached and the steel handrail body 10 attached to the support rod 8 and having the side portions adjacent to the beam 4, the surrounding plate and the mounting hardware are unnecessary. Therefore, the weight of the scaffolding body 6 can be reduced. Therefore, the workability of moving the scaffolding body 6 can be improved, the workability of the steel frame scaffolding 1 can be improved, and the cost required for the scaffolding body 6 can be reduced because inexpensive steel is used. Further, since the steel having high rigidity is used, damage to the scaffold main body 6 can be prevented, and the soundness of the steel structure erection scaffold 1 can be maintained.

The support rod 8 has a shaft portion 11 positioned in the vertical direction, a net body mounting portion 12 extending in the horizontal direction from the upper end of the shaft portion 11, and a handrail extending upward from the tip of the net body mounting portion 12. Since it is composed of the body attachment portion 13, the net body 9 and the handrail body 10 can be integrally attached, and the scaffold body 6 can be made lightweight. Therefore, the net body 9 and the handrail body 10 can be collectively carried into the site, and the lightweight scaffold body 6 can be carried in. The scaffold body 6 has a structure in which the shaft portion 11 of the support rod 8 is detachably fitted into the through hole 17 of the bearing portion 5, so that the scaffold body 6 can be easily attached to the steel pipe column 2. Therefore, the construction workability of the steel frame erection scaffold 1 can be improved.

Further, a shaft reinforcing plate 18 is fixed to the shaft portion 11 and the net body mounting portion 12 of the support rod 8, and a slit 20 is provided in the bearing portion 5, and the slit 20 is provided with the shaft reinforcing plate. Since the scaffolds 18 are fitted, the scaffold body 6 can be prevented from rotating, and the safety of the steel-frame-construction scaffold 1 can be improved.

[0020]

[Effect of device]

 As described above, according to the steel structure erection scaffolding of the present invention, the scaffold for the steel structure is composed of the bearing portion welded to the corner portion of the square steel tubular column and the scaffold body attached to the bearing portion. Since the bearing part can be provided on the steel pipe pillar and the scaffolding body can be assembled, it is possible to eliminate the work of assembling the scaffolding body on site and improve the workability of constructing the scaffolding for steel frame construction.

The bearing portion is configured to have a through hole penetrating in a vertical direction, and the scaffold body includes a support rod formed by bending a steel rod into a crank shape, and a steel attached to the support rod. Since it is composed of a net-making body and a steel handrail attached to the support rod, the surrounding plate and the mounting hardware can be eliminated, and the scaffold body can be made lightweight. Therefore, the workability of moving the scaffolding body can be improved, the workability of constructing the steel frame scaffolding can be improved, and the cost required for the scaffolding body can be reduced because inexpensive steel is used. Also, since steel with high rigidity is used, damage to the scaffold body can be prevented, and the soundness of the steel structure scaffolding can be maintained.

The support rod includes a shaft portion that is positioned in the vertical direction, a mesh body attachment portion that extends horizontally from the upper end of the shaft portion, and a handrail attachment portion that extends upward from the tip of the mesh body attachment portion. Since it is configured, the net body and the handrail body can be integrally attached, and the scaffolding body can be reduced in weight. For this reason, the net body and the handrail body can be collectively carried to the site, and the lightweight scaffold body can be carried in. Since this scaffolding body has a structure in which the shaft portion of the support rod is detachably fitted into the through hole of the bearing portion 5, the scaffolding body can be easily attached to the steel pipe column, and the scaffolding for steel frame erection The workability of construction can be improved.

Furthermore, the steel frame erection scaffold is used when fixing the beams that extend horizontally from each side of the rectangular steel tube column, is installed between the adjacent beams, and the side of the handrail is attached to each beam. Since the parts are adjacent to each other, the scaffold body can be prevented from rotating, and the safety of the steel frame erection scaffolding can be maintained.

[Brief description of drawings]

FIG. 1 is a plan view showing a scaffold for steel erection according to the present invention.

FIG. 2 is a perspective view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a front view of FIG.

[Explanation of symbols]

 1 Steel frame erection scaffolding 2 Steel pipe column 3 Side part 4 Beam 5 Bearing part 6 Scaffolding body 8 Support rod 9 Net body 10 Handrail body 11 Shaft part 12 Net body mounting portion 13 Handrail body mounting portion 17 Through hole

Front page continuation (72) Masaya Masutani, 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Koichi Hanamoto 1-3-2, Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. Within

Claims (1)

[Scope of utility model registration request] 1. A steel-frame-construction scaffolding used to fix a beam extending horizontally from each side of a rectangular steel pipe column and installed between adjacent beams, wherein the steel pipe column has a corner portion. It comprises a bearing part to be welded and a scaffolding body attached to the bearing part. The bearing part is configured to have a through hole penetrating in the vertical direction. The scaffolding body is formed by bending a steel rod into a crank shape. A support rod formed of a shaft portion to be positioned in the vertical direction, a mesh body mounting portion extending horizontally from the upper end of the shaft portion, and a handrail body mounting portion extending upward from the tip of the mesh body mounting portion; And a steel handrail attached to the handrail body attachment portion and having side portions adjacent to the beams, respectively, the scaffold body is the support rod. The shaft part can be removed from the through hole of the bearing part. Steel construction lateral scaffolding, characterized by comprising fitted to.