JPH0557107U - Reinforcement structure of column-beam joints - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Column / beam joints that have multiple steps of hoop reinforcements on both sides of the steel beam in the joint panel zone to enhance workability, reinforcement performance, and reliability. To provide a reinforced structure. [Structure] In a joint panel zone S at a column / beam joint where a steel beam 5 is inserted through and joined to a reinforced concrete column 1, hoop reinforcements 10 are respectively attached to the concrete portions C and C on both sides of the wave 5a of the steel beam 5. It is characterized in that it is built in 2 and arranged in multiple stages to be embedded.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a reinforcement structure for a column / beam joint, which is characterized by reinforcing a joint panel zone in a column / beam joint structure of a reinforced concrete column and a steel beam.

[0002]

[Prior Art]

 In reinforced concrete buildings, reinforced concrete columns are commonly used, and steel beams are used in buildings with a somewhat large span, and in recent years, the development and research of combined joint structures of reinforced concrete columns and steel beams have become active.

As a conventional example of the above-mentioned joining structure, a case of a unidirectional steel frame beam and an orthogonal direction reinforced concrete beam will be described. As shown in FIG. 2, a reinforced concrete column 11 having a plurality of column main bars 12 and a large number of hoop bars 13 is provided. In a column-beam joint structure in which a steel beam 15 is inserted through and joined to a steel beam 15, hoop reinforcements 13 are added and reinforced at the upper and lower portions of the joint panel zone, and the steel beam 15 is connected to the joint panel zone. The rib plate 16 is welded and reinforced, the wave insertion hole 17 is provided in the wave 15a of the steel beam 15, and the hoop reinforcement 18 is inserted to arrange the reinforcement in multiple stages, or the split hoop reinforcement is provided on both sides of the wave 15a. Welding and reinforcing and reinforcing in multiple stages to prevent concrete destruction due to compressive force in the upper and lower parts of the joint panel zone and left and right parts of the steel beam, tensile force of the main bar, etc. It has a reinforced structure for the column-beam joints that have stopped.

[0004]

[Problems to be solved by the device]

 The conventional reinforcement structure for the above-mentioned column-beam joints is a troublesome method in which a wave insertion hole is provided in the wave of the steel beam in the joint panel zone and the hoop reinforcement is inserted to arrange the reinforcement in multiple stages or to weld the reinforcement. However, there is a problem that it is difficult to construct and requires a lot of labor and time.

The present invention was developed to address the above-mentioned problems, and the object thereof is to arrange the hoop muscles in multiple stages on both sides of the wave of the steel beam in the joint panel zone. In addition, it is to provide a strengthening structure for the column-beam joints that has improved workability, reinforcement performance, and reliability.

[0006]

[Means for Solving the Problems]

 In the joint panel zone in a column-beam joint structure in which a steel beam is inserted through a reinforced concrete column and joined, a hoop reinforcement is built into the main column of the column on both sides of the concrete part of the wave of the steel beam and arranged in multiple stages. By burying it in place, the construction is facilitated and the reinforcement performance and reliability are enhanced.

[0007]

[Action]

 In the joint panel zone of a column-beam joint structure in which a steel beam is inserted through a reinforced concrete column, hoop reinforcements are embedded in the main reinforcement of the column and embedded in multiple steps in the concrete parts on both sides of the wave of the steel beam. Reinforcing bars are easily embedded and the embedding density is freely adjusted.In the concrete parts on both sides of the wave of the steel beam, they effectively function as reinforcements for transmitting column tensile force, and stress transmission from the reinforcing bar to the steel beam is performed. Therefore, concrete destruction in the joint panel zone is effectively prevented.

[0008]

【Example】

 FIG. 1 (A) shows a side view mechanism diagram of one embodiment of the present invention, and FIG. 1 (B) shows a plan view mechanism diagram of FIG. 1 (A). In the figure, 1 is a reinforced concrete column, 2 is a column main bar, 3 Is a hoop bar arranged above and below the joint panel zone S, 5 is a steel beam made of H-shaped steel, 6 is a rib plate welded to both sides of the wave 5a of the steel beam 5 in the joint panel zone S Numeral 10 is a hoop reinforcement arranged in the joint panel zone S, and in the joint panel zone S at the column-beam joint where the steel beam 5 is inserted through the reinforcement concrete column 1 and joined, The hoop reinforcements 10 are incorporated in the concrete portions C, C on both sides of the wave 5a, respectively, and they are embedded in the column main reinforcement 2 to be arranged in a plurality of steps to be embedded in the column-beam joint structure.

More specifically, the reinforced concrete column 1 has a structure in which a plurality of column main reinforcements 2 are laid out as shown in the figure, and a large number of hoop reinforcements 3 are incorporated into the column main reinforcements 2 and laid and buried. It has a pillar-beam joint structure in which the steel beam 5 is inserted and joined. As shown in the figure, the hoop reinforcements 3 are appropriately added and reinforced above and below the joint panel zone S in the column-beam joint structure, and in the joint panel zone S, the steel beam 5, a rib plate 6 is welded between the upper and lower flanges of the steel beam 5 to reinforce it, and the hoop reinforcements 10 having a shape as shown in the figure are respectively provided on the concrete portions C and C on both sides of the wave 5a of the steel beam 5. It is buried and reinforced.

The hoop reinforcements 10 are incorporated in, for example, three column reinforcements 2 in the concrete C on one side and between the upper and lower flanges of the steel beam 5, as shown in the figure, and are densely arranged in two rows and multiple steps. The hoop reinforcements 10 are arranged between the main reinforcements 2 of the columns and the waves 5a of the steel beam 5, and the hoop reinforcements 10 are easily and accurately arranged in the concrete C, C on both sides of the waves 5a. The hoop muscles 10 are effectively reinforced and effectively act as reinforcements for transmitting the tensile force of the column, which facilitates the stress transmission from each column main reinforcement 2 to the steel beam 5, and prevents concrete breakage in the joint panel zone S. Effectively prevented.

The column-beam joint structure is applied to a precast reinforced concrete column or a cast-in-place reinforced concrete column, and is also applied to a bi-directional steel beam. Further, the hoop streak 10 may be formed in a rectangular shape in addition to the square shape shown.

[0012]

[Effect of the device]

 The present invention is constructed as described above, and in the joint panel zone in a column-beam joint structure in which a steel beam is inserted into a reinforced concrete column and joined, a hoop reinforcement is formed on each concrete part on both sides of the steel beam's wave. It is embedded in the main bar and embedded in multiple stages.The hoop bar is easily embedded and its embedding density is freely adjusted, and reinforcement is provided for transmission of column tensile force in the concrete parts on both sides of the steel beam wave. As a result, the stress transmission from the reinforcing bars to the steel beams is facilitated, concrete destruction in the joint panel zone is effectively prevented, and the workability as well as the reinforcing performance and reliability are enhanced.

[Brief description of drawings]

FIG. 1 is a side view mechanism diagram (A) and its Xb-Xb sectional view (B) showing an embodiment of the present invention.

FIG. 2 is a side view mechanism diagram (A) showing a conventional example and its Yb-Y.
It is b sectional drawing (B).

[Simple explanation of symbols]

 1 Reinforced concrete column 5 Steel beam 5a Wave 10 Hoop reinforcement S Joint panel zone C Concrete part

Claims (1)

[Scope of utility model registration request] 1. In a joint panel zone in a column-beam joint structure in which a steel frame beam is inserted through and joined to a reinforced concrete column, hoop reinforcements are respectively installed in column main reinforcements in the concrete portions on both sides of the wave of the steel frame beam and arranged in multiple stages. Reinforced structure of column-beam joints, which is characterized by being installed and buried.