JP2555085B2 - Building construction method - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a method for constructing a low-rise building such as a house, an apartment, a condominium, and a school.

[Conventional technology]

Conventionally, for houses or middle- and low-rise buildings, various types have been developed that mainly use concrete plates, such as steel-framed ALC houses and buildings with wall structures using precast concrete panels. Has been planned.

By the way, in the steel frame structure, the opening can be designed relatively freely, but in the general wall type structure, it takes a lot of time and effort to reinforce the opening and the degree of freedom in design is limited.

Therefore, the inventor has proposed a high-performance building frame structure that is low in cost, has a good workability, and has a large degree of freedom in designing. We are developing a building with a wall structure made up of parallel plates (hereinafter referred to as a mixed structure building).

[Problems to be solved by the invention]

By the way, in the construction of a building with a mixed structure, since the skeleton is unstable before the concrete board 2 is erected as shown in FIG. 2, a temporary material 12 is erected between the steel frames 1 facing each other. Need to stabilize. Further, in the conventional method, when constructing the concrete board 2, the frame-shaped scaffold 13 and other temporary materials must be assembled. Therefore, in addition to the labor for assembling the scaffold 13, a space therefor is required, and construction may be significantly limited in a narrow area.

The present invention has been made to solve the above problems.

[Means for solving problems]

In the construction of a building in which the girder wall has a steel frame structure as the girder direction wall and the span direction wall has a wall structure in which a plurality of concrete plates 2 are juxtaposed, the girder direction steel frames facing each other when the steel frame is constructed. It is characterized in that a temporary beam 6 is bridged between the frames 1 to stabilize the skeleton, and the temporary beam 6 is also used as a scaffold when the concrete board 2 is laid in the span direction.

The temporary beam 6 which also serves as a scaffold has, for example, a truss structure, is fixed to the steel columns 4 between the steel frames 1 with bolts, clamps, or other supporting metal fittings, and is used by laying a scaffolding plate on the upper end.

〔Example〕

FIGS. 1 (a) and 1 (b) show the manner of construction in one embodiment of the present invention.

In this embodiment, as for the foundation in the girder direction, the foundation beam 3 is erected similarly to the general foundation structure, and the steel frame 1 is assembled thereon. On the other hand, in the span direction, only the footing 7 is provided, and the concrete plate 2 constituting the wall in the span direction is directly received by the footing 7 by laying mortar or the like.

FIG. 1A shows a state in which a temporary beam 6 having a truss structure is bridged between the steel frames 1 to secure structural stability when the steel frame 1 is being erected. FIG. 1 (b) shows a state of the concrete board 2 being built, in which the temporary beam 6 mounted for stabilizing the steel frame 1 is mounted.
It is possible to lay a scaffolding board on the temporary beam 6 by using the above, and perform work such as positioning and installation of the concrete plate 2 on the temporary beam 6 which also serves as a scaffolding.

FIG. 2 shows a method of mounting the temporary beam 6 which also serves as a scaffold. The scaffolding / temporary beam 6 is a truss-shaped structure made up of a chord member 6a made of square pipes horizontally extending vertically and a belly member 6b made of square pipes and angles.
Angles (10) are projected on one side of the string (6a) in the longitudinal direction of the chord member (6a) at required intervals, and a scaffolding plate (11) is placed on it. Channels 8 are welded or bolted to the other side of the upper and lower chords 6a in advance, and the scaffolding temporary beams 6 are bolted to the steel columns 4 of the steel frame 1 through the channels 8. It should be noted that FIG. 2 shows only an example of a method of mounting the temporary beam 6 which also serves as a scaffold, and the mounting method is not limited.

〔The invention's effect〕

According to the method of the present invention, in erection of a building with a mixed structure, before the concrete plate is erected, structural stability can be secured with the temporary beam that also serves as a scaffold, and when the concrete plate is erected, it can be directly used as a scaffolding. This eliminates the need for troublesome scaffolding frame assembly and disassembly work.

In addition, since the temporary beam that also serves as a scaffold is fixed to the steel frame that constitutes the body, it is easy to build a concrete board even in a narrow area.

[Brief description of drawings]

1 (a) and 1 (b) are perspective views showing an embodiment of the present invention, FIG. 2 is a vertical sectional view showing details of a mounting portion of a temporary beam that also serves as a scaffold, and FIG. 3 is a perspective view of a conventional example. Is. 1 ... Steel frame, 2 ... Concrete plate, 3 ... Foundation beam, 4 ... Steel column, 5 ... Steel beam, 6 ... Temporary beam, 7
…… Footing, 8 …… Channel, 9 …… Bolt, 10
…… Angle, 11 …… Scaffolding board, 12 …… Temporary material, 13 …… Scaffolding

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shinji Nakata 1-2-2 Yurakucho, Chiyoda-ku, Tokyo Within Asahi Kasei Corporation (72) Inventor Shunichi Naito 2-7-14-304 Hyakunincho, Shinjuku-ku, Tokyo Taku Architectural Structural Design Co., Ltd.

Claims (1)

(57) [Claims] 1. In a construction of a building in which a girder row wall has a steel frame structure as a shaft and a span direction wall has a wall structure in which a plurality of concrete plates 2 are arranged in parallel, a steel frame 1 facing each other in a girder row direction is constructed. A method for constructing a building, characterized in that the temporary beam 6 for stabilizing the frame, which is laid between the two, is also used as a scaffold for building the concrete board 2 in the span direction.