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Reinforcing structure for improving earthquake resistance of earthquake-damaged RC frame structure and construction method

A technology of seismic performance and frame structure, which is applied in the direction of building structure, earthquake resistance, building components, etc., can solve the problems of low horizontal resistance and low lateral stiffness of RC frame structure, and achieves enhanced bearing capacity and lateral stiffness, and a simple structure. , the effect of improving the seismic performance

Pending Publication Date: 2020-12-18
FUZHOU UNIVERSITY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The results of previous earthquake disasters show that in earthquake-stricken areas, RC frame structures have defects such as low lateral stiffness and low horizontal resistance.

Method used

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  • Reinforcing structure for improving earthquake resistance of earthquake-damaged RC frame structure and construction method
  • Reinforcing structure for improving earthquake resistance of earthquake-damaged RC frame structure and construction method
  • Reinforcing structure for improving earthquake resistance of earthquake-damaged RC frame structure and construction method

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figure 1-6 As shown, a reinforced structure for improving the seismic performance of an earthquake-damaged RC frame structure includes frame columns 3 and frame beams 1, adjacent frame columns are connected by frame beams, and adjacent frame columns are arranged at intervals from top to bottom Several layers of frame beams, the adjacent frame beams are connected by buckling-constrained support rods 4, the damaged parts of the beam-column joints, frame columns and frame beams on the plastic hinge area are severely damaged, and the concrete is removed to form the repair area 2, the repair area The cement-based composite material without coarse aggregate is poured inside for repair, and the chiseled concrete is replaced with cement-based composite material without coarse aggregate, which can increase the energy consumption of beam-...

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Abstract

The invention relates to a reinforcing structure for improving earthquake resistance of an earthquake-damaged RC frame structure and a construction method. The reinforcing structure comprises frame columns and frame beams, the adjacent frame columns are connected through the frame beams, a plurality of layers of frame beams are arranged between the adjacent frame columns at intervals from top to bottom, and the adjacent frame beams are connected through buckling restrained supporting rods; and concrete is removed from seriously-damaged positions of damage positions of plastic hinge areas on beam-column joints, the frame columns and the frame beams, a repair area is formed, a cement-based composite material without the coarse aggregate is poured into the repair area for repair, the reinforcing structure is simple in structure and reasonable in design, construction is easy, the cement-based composite material without the coarse aggregate is adopted to be combined with BRB for reinforcing, and the reinforced RC frame structure can greatly enhance the bearing capacity and the lateral stiffness, improve the seismic performance of the seismic damage structure and remarkably achieve the reinforcing effect of the seismic damage RC frame structure.

Description

technical field [0001] The invention relates to a reinforcement structure and a construction method for improving the seismic performance of an earthquake-damaged RC frame structure. Background technique [0002] Earthquakes can cause damage to buildings and seriously affect the safety of people's lives and properties. The RC frame structure has the advantages of flexible structural space layout, short construction period and mature construction technology, and is one of the most common structural systems. The results of previous earthquake disasters show that in earthquake-stricken areas, RC frame structures have defects such as low lateral stiffness and low horizontal resistance. Except for a few seriously damaged structures that need to be demolished and rebuilt, slightly or moderately damaged structures are still in the repairable stage, and can still meet the seismic fortification goal of "not damaged by small earthquakes, repairable by moderate earthquakes, and not co...

Claims

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Application Information

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IPC IPC(8): E04G23/02E04B1/98E04H9/02
CPCE04G23/0218E04B1/98E04H9/021
Inventor 陈伟宏王旭洪秋榕
Owner FUZHOU UNIVERSITY
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