JPS645133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a method of assembling a frame in a steel reinforced concrete structure.

[Conventional technology]

In general, the frame of a steel-framed reinforced concrete structure is composed of steel columns and beams such as H-beams.
In addition, multiple main reinforcements are arranged around the steel frames of the columns and beams in the longitudinal direction, and furthermore, hoop reinforcements are placed around the steel frames of the columns, and stirrup reinforcements are placed around the steel frames of the beams. are each reinforced.

The assembly method is as follows: First, the steel columns are erected one by one, then the steel beams are erected between the steel beams to form a framework made of only steel frames, and then the surroundings of the steel columns and steel beams are It is common to place main reinforcement and shear reinforcing bars in the steel.

[Problem to be solved by the invention]

However, with this assembly method, it is necessary to install the steel frames and reinforcing bars for columns and beams one by one, and the arrangement of reinforcing bars at the joints between columns and beams is complicated. The reinforcement work tends to be extremely troublesome because the reinforcement is mixed up. However, since reinforcing bars will be placed after the frame assembly is completed, the construction period will be significantly longer.

Furthermore, since most of these tasks are performed at high places, they are exposed to risks such as falling accidents and scattering accidents.
There is a safety issue.

This invention was proposed in order to solve the above-mentioned conventional problems, and provides a method for assembling frames in steel-framed reinforced concrete structures that allows assembly work to be performed easily, quickly, and safely. The purpose is to provide.

[Means to solve problems]

This invention relates to a method for assembling frames in steel-framed reinforced concrete structures, in which steel-framed reinforced concrete is constructed by assembling a plurality of steel frames in a cross-shaped or lattice shape and arranging main bars and shear reinforcing bars around the steel frames. A frame unit is formed by integrating the column and beam parts of the structure, and the frame unit is connected to each other in the upper floor direction and span direction by connecting plates and bolts and nuts, and the main reinforcements are connected to each other by joint fittings. The above object is achieved by constructing a structure in which they are assembled while being connected to each other.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of assembling a steel frame according to the present invention will be explained with reference to an illustrative embodiment.

First, the frame unit 1 is assembled in a frame yard at a construction site.

The frame unit 1 is constructed by assembling a plurality of steel frames in a parallel or lattice shape, and arranging a plurality of main reinforcements 4 around the steel frames of the column portions 2 and beam portions 3 along the longitudinal direction of these members, Furthermore, around it, the hoop reinforcement 5 is placed on the column part 2, and the beam part 3 is placed on the column part 2.
In this case, it is constructed by arranging stirrup muscles 6.

Further, a plurality of bolt holes 7 are formed at both ends of the column portion 2 and the beam portion 3.

The column part 2 and beam part 3 are made of single H-beam steel or I
It is assembled using steel frames such as shaped steel or assembled H-shaped steel and I-shaped steel.

In such cases, the type of steel frame to be used will be determined depending on the scale of the building.

Figures 2 to 7 show the types of frame units, of which Figure 2 shows a frame unit assembled in a cross-shaped structure, and Figure 3 shows two spans assembled at the same time. Figure 4 shows a frame unit assembled in a lattice shape so that four floors can be assembled at the same time, and Figure 5 shows a frame unit assembled in a lattice shape so that four floors can be assembled at the same time. Figure 6 shows a frame unit assembled so that three floors can be assembled at the same time, and Figure 6 shows a frame unit assembled so that four floors can be assembled at the same time. Figure 7 shows a frame unit assembled so that four floors and two spans can be assembled at the same time.

Which of the frame units assembled in this manner is to be adopted shall be determined by taking into account construction conditions such as the shape and scale of the building to be constructed, and the operating capacity of the crane.

Subsequently, the frame unit 1 is lifted up by a crane and assembled while being connected in the upper story direction and the span direction of the structure to be constructed.

To connect the column part 2 and the beam part 3, the steel frame ends of the column part 2 and the beam part 3 are butted together, a connection plate 8 is attached to both ends of the steel frame, and the connection plate 8 and the steel frame are tightened with bolts and nuts 9. .

Further, the main reinforcing bars 4, 4 are connected to each other by a joint fitting such as a squeeze joint or a grip joint.

Note that the connection of the main reinforcements is not limited to this, and may be joined by gas pressure welding or welding.

Hoop reinforcements 5 and stirrup reinforcements 6 are also arranged at the joint portions of the column portions 2 and beam portions 3.

〔Effect of the invention〕

Since the present invention has the above configuration, it has the following effects.

When assembling a frame unit, on the ground, it is not enough to simply arrange the main reinforcement and shear reinforcing bars on the steel frames for the columns and the steel frames for the beams, but also to assemble the steel frames in a cross-shaped or lattice shape, and to shear around the steel frames. Since the work is carried out up to the point of arranging reinforcing bars, it is possible to assemble multiple floors and multiple span sections at the same time when constructing the steel frame, and the connection work is significantly reduced. Moreover, since the steel frames of the column and beam sections are all connected by easy-to-connect connecting plates and bolts and nuts, and the main reinforcements are connected by joint fittings, the connection between these members can be made extremely simple.

Therefore, the efficiency of assembly work is significantly improved.

In addition, the pillars and beams are assembled in a parallel or lattice shape to prevent deformation on the ground, so it is possible to avoid the danger of the frame unit disassembling during lifting or assembly by a crane, improving work safety. You can also plan.

[Brief explanation of the drawing]

Figures 1 to 7 show an embodiment of the present invention. Figure 1 is a frame diagram showing a method of assembling a frame of a steel-framed reinforced concrete structure, and Figures 2 to 7 are
The figure is a front view of the frame unit. 1... Frame unit, 2... Column part, 3... Beam part, 4... Main reinforcement, 5... Hoop reinforcement, 6... Starlap reinforcement, 7... Bolt hole, 8... Connection plate, 9... ...Boruto Natsuto.

Claims (1)

[Claims] 1 A frame unit that integrates the column and beam parts of a steel-framed reinforced concrete structure constructed by assembling multiple steel frames in a grid or lattice shape and arranging main reinforcement and shear reinforcing bars around the steel frames. A shaft in a steel-framed reinforced concrete structure, characterized in that the shaft unit is assembled in the upper story direction and the span direction, with the steel frames connected to each other by connecting plates and bolt nuts, and the main bars connected to each other by joint fittings. How to assemble the set.