JP6774209B2 - Multi-story scaffolding - Google Patents

Description

The present invention relates to a multi-story scaffold, for example, a multi-story scaffold that is installed on the outer periphery of a building to form a work space over a plurality of layers, and is attached to an outer wall of the building. It relates to a multi-story scaffold that can be installed reliably and efficiently even when the part does not exist.

When constructing a building, temporary scaffolding will be installed on the outer periphery of the building for the purpose of ensuring the safety of workers and performing work efficiently. Especially in high-rise buildings, multi-story scaffolding is used to form a work space over multiple floors. Various proposals have been made for such a multi-layer scaffold, such as an installation method thereof (see, for example, Patent Document 1).

The technique described in Patent Document 1 relates to a method for installing a multi-story scaffold that can newly install or expand an entrance / exit and smoothly perform exterior construction work without dismantling the entire multi-story scaffold. is there. In this method of installing a multi-layer scaffold, a jack base is attached to the lower end of the steel pipe column of the building frame, and the building frames to which the jack base is attached are erected horizontally at predetermined intervals to form a multi-layer scaffold. Install the bottom layer of. In addition, the upper part of the multi-story scaffold is a frame body in which another building frame is assembled on the building frame constituting the lowest layer part and fixed to the frame part of the building at predetermined intervals with respect to the assembled building frame. Install by attaching fasteners. After that, a contraction operation is performed on all or a part of the jack base, and all or a part of the building frame constituting the lowermost layer portion is dismantled.

Japanese Unexamined Patent Publication No. 2005-226391

As described above, when a multi-story scaffold is used as a temporary scaffold, it is necessary to fix the multi-story scaffold to the outer wall of the building. In a general building, an anchor or the like for fixing a multi-story scaffold is provided on the outer wall portion. However, depending on the structure of the building, it may not be possible to provide an attachment portion such as an anchor on the outer wall portion, and in a building having such a structure, it is necessary to devise a method for fixing the multi-story scaffolding.

The multi-story scaffold according to the present invention has been proposed in view of the above circumstances, is a multi-story scaffold for forming a work space over a plurality of layers, and has no mounting portion on the outer wall portion of the building. Even in the case, the purpose is to provide a multi-story scaffold that can be installed reliably and efficiently.

The multi-layer scaffold according to the present invention has the following features in order to achieve the above-mentioned object. That is, the multi-story scaffold according to the present invention is a temporary scaffold for forming a work space over a plurality of layers by installing it on the outer periphery of a building, and is a scaffold plate provided in a plurality of steps above and below and a scaffold. It is provided with a fence member provided on the outer peripheral portion of the board, a fixing member for fixing to the building, and a mounting portion provided inside the building and near the outer peripheral portion for fixing the fixing member. ing. In addition, the mounting part is a base mounted on the floor of the building, a steel material mounted on the upper part of the base, an angle having a substantially L-shaped cross section attached to the upper part of the steel material, and a cross section on the inner angle side of the angle. It consists of a brace. Then, a series of bolts are inserted into the fixing holes provided in the fixing member and the mounting holes provided in the angle, and the nut is screwed to the tip of the bolt to fix the scaffolding plate and the fence member to the building. The state is assumed to be.

Further, in the multi-layer scaffold having the above-described configuration, it is preferable to dispose the brace material from the upper part to the lower part of the fence member.

Further, in the multi-layer scaffold having the above-described configuration, the scaffold plate preferably includes a hatch opening through which an operator can pass and a hatch cover for closing the hatch opening.

According to the multi-story scaffold according to the present invention, the multi-story scaffold can be installed on the outer peripheral portion of the building even when the attachment portion does not exist on the outer wall portion of the building. Therefore, not only the work efficiency is improved, but also the construction quality is improved accordingly, and the construction cost can be further reduced.

Further, by disposing the brace material, it is possible to prevent distortion of the multi-layer scaffold and reduce the weight without lowering the strength of the multi-layer scaffold. Further, by providing the hatch opening and the hatch cover, the worker can easily move over a plurality of layers.

The plan view of the multilayer scaffold according to the embodiment of this invention. The side view of the multilayer scaffolding which concerns on embodiment of this invention. An explanatory view of a mounting portion provided on a building in a multi-story scaffold according to an embodiment of the present invention.

Hereinafter, the multilayer scaffold according to the embodiment of the present invention will be described with reference to the drawings. 1 to 3 show the multi-story scaffold according to the embodiment of the present invention, FIG. 1 is a plan view of the multi-story scaffold, FIG. 2 is a side view of the multi-story scaffold, and FIG. 3 is provided in a building. It is explanatory drawing (the state seen from the side) of the mounting part. The illustrated multi-layer scaffold has a substantially L-shaped cross section when viewed in a plan view, but the shape of the multi-layer scaffold according to the present invention is not limited to this, and may be another shape.

<Overview of multi-story scaffolding>
The multi-story scaffolding 10 according to the embodiment of the present invention is a temporary scaffolding that is installed on the outer peripheral portion of a building to form a work space over a plurality of layers. As shown in FIGS. 1 and 2, the multi-story scaffold 10 forms a scaffold with the scaffold plate 20 and the fence member 30, and includes a fixing member 40 for fixing to the building. Further, the building for fixing the multilayer scaffolding 10 is provided with a mounting portion 50 inside the building and in the vicinity of the outer peripheral portion. Then, by fixing the fixing member 40 to the mounting portion 50, the multilayer scaffolding 10 can be fixed to the building.

That is, the multi-story scaffolding 10 according to the embodiment of the present invention can attach the multi-story scaffolding 10 to the building even when the mounting portion does not exist on the outer wall portion (outer wall surface) of the building. It is characterized by the fact that it was done. Then, the multi-layer scaffold 10 is attached to the building by using the fixing member 40 provided on the multi-layer scaffold 10 and the attachment portion 50 provided inside the building.

<Scaffolding board>
The scaffolding boards 20 are provided in a plurality of upper and lower stages so as to correspond to a plurality of layers of the building. The number of steps of the scaffolding plate 20 is not limited, but in the examples shown in FIGS. 1 and 2, it is 4 steps. The scaffolding plate 20 is preferably made of, for example, aluminum and provided with a plurality of small holes for drainage and non-slip, similar to those used for general scaffolding. As will be described in detail later, a hatch opening 21 is opened in the scaffolding plate 20, and a hatch cover 22 is rotatably attached to the hatch opening 21.

<Fence member>
The fence member 30 is provided on the outer peripheral portion of the scaffolding plate 20, and is provided by raising the fence member 30 upward from the outer peripheral portion of the scaffolding plate 20 located in the air when the multi-story scaffolding 10 is installed. Form a work space that prevents the fall of. As shown in FIG. 2, the fence member 30 is composed of, for example, a plurality of columns 31 and an enclosure member 32 that is hung between adjacent columns 31. The shape of the fence member 30 is not limited to that shown in FIG. 2, and may be any shape such as a net shape as long as the operator can be prevented from falling.

<Brace material>
The brace material 33 is a member that extends from the upper part to the lower part of the fence member 30 and is provided so as to prevent distortion of the multi-layer scaffold 10 and not to reduce the strength of the multi-layer scaffold 10 even if the weight is reduced. There is. The portion over which the brace material 33 is hung is not limited to the position shown in FIG. 2, and can be appropriately provided at an appropriate location according to the structure of the multi-layer scaffold 10 and the desired strength.

<Hatch opening / hatch cover>
The hatch opening 21 is an opening for an operator to move between each layer of the multi-story scaffold 10. Therefore, the hatch opening 21 has a size that allows an operator to pass through. Further, a hatch cover 22 for closing the hatch opening 21 is attached to the hatch opening 21.

The hatch cover 22 has a substantially square shape according to the shape of the hatch opening 21, is rotatably attached to the scaffolding plate 20 with one side as a rotation axis, and closes the hatch opening 21. It is designed to rotate between the state in which the hatch opening is opened and the state in which the hatch opening 21 is opened. When the operator moves between the upper and lower layers, the hatch cover 22 is rotated upward to open the hatch opening 21, and usually the hatch opening 21 is closed.

<Fixing member / mounting part>
As shown in FIG. 2, the fixing member 40 is configured as a part of a pillar member, and a fixing hole (not shown) is provided on a surface facing the building. The mounting portion 50 is provided inside the building and in the vicinity of the outer peripheral portion. In the example shown in FIG. 3, the base 51 mounted on the floor surface of the building and the steel material mounted on the upper portion of the base 51. It is composed of (H-shaped steel) 52 and an angle 53 having a substantially L-shaped cross section attached to the upper part of the steel material (H-shaped steel) 52, and the angle 53 has a mounting hole at a position facing the fixing hole of the fixing member 40 (FIG. Not shown). A brace 54 is hung on the inner angle side of the angle 53. Then, the fixing hole (not shown) provided in the fixing member 40 and the mounting hole (not shown) provided in the mounting portion 50 are opposed to each other, and the bolt 55 is inserted in a series to the tip of the bolt 55. By screwing the nut 56, the multi-layer scaffolding 10 can be fixed to the building.

<Installation of multi-story scaffolding>
In order to install the multi-story scaffold 10, the multi-story scaffold 10 is hung by using a crane or the like, and when the predetermined installation height is reached, the fixing member 40 is attached to the attachment portion 50 to form the outer periphery of the building. The multi-layer scaffold 10 is fixed. The location where the multi-story scaffold 10 is fixed to the building can be appropriately set according to the shape, size, weight, and the like of the multi-story scaffold 10. Further, it is preferable to interpose a spacer (buffer member) at an appropriate place between the outer wall of the building and the multi-story scaffold 10.

When the work on the predetermined level is completed, the multi-layer scaffold 10 is hung again using a crane or the like, the fixing by the fixing member 40 is released, and the fixing member 40 is moved to the next installation height to attach the fixing member 40 to the mounting portion 50. As a result, the multi-story scaffolding 10 is fixed to the outer peripheral portion of the building at the next working position. When the work by the multi-story scaffold 10 is completed, the multi-story scaffold 10 is hung again by using a crane or the like, the multi-story scaffold 10 is disassembled, and the scaffold 10 is lowered to the ground.

10 Multi-layer scaffolding 20 Scaffolding board 21 Hatch opening 22 Hatch cover 30 Fence member 31 Strut 32 Enclosure member 33 Brace material 40 Fixing member 50 Mounting part 51 Base 52 Steel material 53 Angle 54 Brace 55 Bolt 56 Nut

Claims (3)

It is a temporary scaffolding that is installed on the outer periphery of a building to form a work space over multiple floors.
Scaffolding boards provided in multiple stages on the top and bottom,
A fence member provided on the outer peripheral portion of the scaffolding plate and
A fixing member for fixing to the building and
An internal of the building, and a mounting portion for fixing the set vignetting, the fixing member in the vicinity of the outer peripheral portion,
With
The mounting part is
The base attached to the floor of the building and
The steel material attached to the upper part of the base and
An angle with a substantially L-shaped cross section attached to the upper part of the steel material,
The brace that hangs over the inner angle side of the angle,
Consists of
By inserting a series of bolts into the fixing holes provided in the fixing member and the mounting holes provided in the angle and screwing a nut to the tip of the bolt, the scaffolding plate and the fence are attached to the building. Keep the members fixed,
A multi-story scaffolding that is characterized by that. The multi-layer scaffold according to claim 1, wherein a brace material is arranged from the upper part to the lower part of the fence member. The multi-layer scaffold according to claim 1 or 2, wherein the scaffold plate includes a hatch opening through which an operator can pass, and a hatch cover that closes the hatch opening.

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