Reinforcement method of reinforced concrete beam column node

A technology of reinforced concrete and beam-column joints, which is applied in building maintenance, construction, building construction, etc., can solve problems such as poor ability of reinforcement materials to work with original joints, unsuitable reinforcement methods, and difficult joint reinforcement, etc., to achieve Reinforcement and repair speed is fast, the effect of improving the shear bearing capacity and overcoming reinforcement difficulties

Inactive Publication Date: 2010-06-23
HUAQIAO UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] (1) The core area of ​​the joint is the column within the beam height range. Due to the space barrier formed by the two-way frame beam, it is difficult to strengthen the joint, which also makes some traditional strengthening methods of the column unsuitable for

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  • Reinforcement method of reinforced concrete beam column node
  • Reinforcement method of reinforced concrete beam column node
  • Reinforcement method of reinforced concrete beam column node

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[0014] The reinforcement method of reinforced concrete beam-column nodes of the present invention, such as Figure 1-3 As shown, the specific implementation steps are as follows:

[0015] (1) Positioning

[0016] First remove the stucco layer of the reinforced concrete beam-column node area, and determine the drilling position and the column corner chamfering position at the junction of beam 1 and column 2. All drilling positions and chamfering positions should be at the same elevation.

[0017] (2) Drilling and chamfering

[0018] Drill holes on the four ends of the beam 1 close to the column 2 so that the holes close to the column 2 and pass through the cross section of the beam 1. For the hole 11 on the side where the prestress is applied, the hole diameter should ensure that the two steel stranded wires 3 can close to the cylindrical surface of the column 2 to pass through, and the hole 12 of the other three side holes should ensure that one steel stranded wire 3 can be tightly a...

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Abstract

The invention discloses a reinforcement method of a reinforced concrete beam column node. A steel strand is transversely wound on the core area of the reinforced concrete beam column node, a device for prestressing applies prestree to the steel strand, and a buckle is adopted to carry out butt joint anchoring treatment on two ends of the steel strand when the prestress of the steel strand reaches a preset level. By adopting the above scheme, the method has the advantages: (1) a closed prestress steel strand is adopted to form effective horizontal restrain to the concrete in core area so that the steel strand and the node area co-work to greatly improve the shear resisting bearing capability of the node core area and improve the earthquake resistant capability of the node; (2) the reinforced concrete beam column node has strong applicability and wide application aspect and is suitable for reinforcing namespace nodes; and (3) the reinforced concrete beam column node has favourable economical efficiency and convenient and quick construction.

Description

technical field [0001] The invention relates to a reinforced concrete beam-column joint, in particular to a reinforcement method for a reinforced concrete beam-column joint. Background technique [0002] The beam-column joint is a key component in the frame structure, which plays a role in transmitting and distributing internal forces in the frame and ensuring the integrity of the structure. The damage of beam-column joints under earthquake often leads to the overall collapse of the structure, and the consequences are very serious. Therefore, whether the beam-column joints are safe and reliable is the key to ensure the seismic performance of the frame structure. In seismic design, there is generally a requirement of "strong columns, weak beams, stronger joints". When the engineering structure is due to structural design and construction errors, changes in building functions, low fortification standards of existing buildings, and changes in seismic code provisions, it is ne...

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Application Information

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IPC IPC(8): E04G23/02E04B1/58
Inventor 黄群贤郭子雄朱奇云刘阳
Owner HUAQIAO UNIVERSITY
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