A self-resetting shear wall structure with frictional energy dissipation and easy repair at the bottom

Abstract

The invention discloses a frictional energy dissipation self-centering shear wall structure with an easily restored bottom. The frictional energy dissipation self-centering shear wall structure with the easily restored bottom comprises at least one structure unit, and the structure unit comprises an ordinary prefabricated wall section, a spiral stirrup reinforcement prefabricated wall section, an easily restored wall section located at the lower side of the spiral stirrup reinforcement prefabricated wall section, friction dampers located at two sides of the easily restored wall section, and an un-bonded pre-stressed tendon located in the wall body; the spiral stirrup reinforcement prefabricated wall section comprises an inside spiral stirrup, a pre-embedded plate inserted in the spiral stirrup, and T-shaped connecting plates connected with the easily restored wall section and further connected with slotted spiral stirrup reinforcement wall blocks of the easily restored wall section; the easily restored wall section comprises two slotted spiral stirrup reinforcement wall blocks; each friction damper comprises an upper support and a lower support. The frictional energy dissipation self-centering shear wall structure with the easily restored bottom is capable of effectively eliminating the plastic deformation of the concrete shear wall and simplifying the self-centering shear wall restoring method, and the engineering structure restoring cost and difficulty are greatly lowered after an earthquake.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a frictional energy consumption self-resetting shear wall structure with a non-bonded bottom and easy repair for reducing earthquake disasters of engineering structures. Background technique [0002] Earthquakes bring extremely serious disasters to human beings. The traditional seismic design adopts the ductility design method, that is, under the action of an earthquake, through the early yield and failure of some structural components, but the overall function will not be lost, relying on the plastic deformation of the components to dissipate most of the seismic energy, so as to achieve The purpose of ensuring the safety of the main structure. [0003] Self-resetting concrete shear walls, as a typical energy-dissipating shock-absorbing technology, have been widely used in recent years because of their advantages such as high lateral stiffness, small residual deformation, good sho...

AI Technical Summary

Problems solved by technology

[0006] Technical problem: The present invention aims at the problem that the vulnerable wall section at the bottom of the existing self-resetting concrete shear wall structure and its built-in mild steel damper are not easy to repair under a large earthquake, and provides a method that can not only effectively improve the repair efficiency of the bottom wall section, but also realize The self-resetting method of the main body of the structure, and simplifies the installation of the damper at the bottom of the wall, thus greatly reducing the repair cost and difficulty of the engineering structure after the earthquake, and at the same time, it can flexibly and independently adjust the strength, stiffness and ductility of the structure. The bottom is easy to repair Frictional energy dissipation self-resetting shear wall structure

Images