JP2722099B2 - Construction method of steel reinforced concrete building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention particularly relates to a construction method of a steel reinforced concrete building using a floor PC board or a half PC board.

[Prior Art] Conventionally, as a construction method of a steel-framed reinforced concrete building using a floor PC board or the like, as shown in Fig. 4, a steel beam 2 is erected in the span direction of an upright steel column 1, and thereafter, As shown in FIG. 5, the form 4 such as the column 4, the beam 2, and the wall is assembled, the support 4 is assembled, and as shown in FIG. After arranging the bars, concrete was cast together.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional method, since the half PC board or the floor PC board is set after assembling the formwork of columns, beams and walls, the work of the formwork carpenter on the lower floor is completed. Otherwise, work on the floor cannot be performed, and not only the construction period becomes long, but also there are many supports for receiving floor PC boards and the like, resulting in poor workability.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to reduce the construction period by performing a steel frame rebar assembling operation on a floor and a formwork under a floor in parallel. It is an object of the present invention to provide a construction method of a steel reinforced concrete building capable of not only being capable of reducing the number of support works such as floor PC boards but also providing a wide underfloor space and improving workability.

[Means for Solving the Problems] In the construction method of a steel reinforced concrete building of the present invention, a temporary prop for embedding is erected under a steel beam in a span direction, and a floor PC board is attached to a bracket attached to the steel beam. Alternatively, the method is characterized in that formwork such as columns, beams, walls and the like are assembled while or after the half PC board is installed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a steel column, 2 is a steel beam,
As is clear from FIG. 1A, a temporary support column 3 for embedding is provided below the beam 2. FIG. 1B shows a structure for attaching the temporary support 3 to the steel beam 2. In the middle of the left and right temporary supports 3, supports 4 are erected as necessary.

Subsequently, as shown in FIG.
Erection. As a method of erection of the half PC plate 5, for example, as shown in an enlarged manner in FIG.
A bracket 6 is integrally attached to the outside of the box by welding or the like, and the bracket 6 receives the half PC plate 5.

When the setting of the half PC board 5 is completed, as shown in FIG. 3, the formwork 8 is assembled on the pillar 1, the beam 2, and the wall 7.

 At the same time, upper end bars are arranged on the half PC board 5.

When the above work is completed, concrete is integrally cast on the columns, walls, beams and half-PC boards.

At this time, the number of the supports 4 under the half PC board 5 is increased as necessary to reinforce the support.

 The half PC board 5 may be a floor PC board.

Also, the formwork of the pillar 1 and the like may be performed during the work of setting the floor PC board.

[Effects of the Invention] (1) By performing floor PC boards or semi-PC boards prior to formwork assembling work for columns, walls, beams, etc., work on the upper and lower floors can be performed simultaneously, thereby shortening the frame cycle process. Can be.

(2) Concrete placing can be performed on horizontal and vertical members at the same time as the conventional construction method.

(3) Since the properties of the floor PC board or half PC board precede, the formwork assembly work on the lower floor can be performed even in rainy weather.

(4) Labor saving of the formwork can be achieved, and the formwork of columns, beams and walls can be performed at the same time, so that the work efficiency can be improved.

[Brief description of the drawings]

1 to 3 are diagrams for sequentially explaining one embodiment of the method of the present invention, FIG. 1A is a diagram viewed from an arrow A in FIG. 1, and FIG. 1B is a mounting structure of a temporary support and a beam. 2A is an enlarged view of a main part, and FIGS. 4 to 6 are explanatory views of a conventional method. DESCRIPTION OF SYMBOLS 1 ... Steel column, 2 ... Steel beam, 2a ... Vertical steel material, 3 ... Temporary support, 4 ... Support, 5 ... Half PC board, 6 ... Bracket, 7 ...
Wall, 8 ... formwork.

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Watanabe 734-34 Tokukura, Mishima-shi, Shizuoka (56) References JP-A-59-34344 (JP, A)

Claims (1)

(57) [Claims] 1. A temporary support column for embedding is erected under a steel beam in the span direction, and a floor PC is mounted on a bracket attached to the steel beam.
A construction method for a steel-framed reinforced concrete building characterized by assembling columns, beams, walls, and other formwork while or after laying a board or half-PC board.