Self-recovery concrete shear wall with high-strength reinforcing bar

Abstract

A self-recovery concrete shear wall with high-strength reinforcing bar belongs to the technical field of reinforced concrete shear wall and is characterized in that the shear wall comprises a longitudinal bar at the end edge component, a longitudinal bar distributed in the middle part of the wall vertically, a horizontally distributed bar and a concrete, wherein part of the reinforcing bar in the longitudinal bar of the wall edge component is replaced by a high-strength reinforcing bar; alternatively, part of the reinforcing bar in the longitudinal bar of the end edge component and part of the reinforcing bar distributed in the middle part of the wall vertically are replaced by the high-strength reinforcing bar simultaneously. The high-strength reinforcing bar comprises the longitudinal bar with the yield strength more than 500MPa such as rebar, steel wire, high-strength steel strand and fiber-reinforced composite (FRP); the high-strength reinforcing bar can be dispersed at the circumference of the edge component or arranged in the edge component in a concentration way. The self-recovery concrete shear wall can improve the antiroll stiffness of the shear wall, postpone the degradation of the antiroll stiffness, lead the structure to have the self-recovery capability and reduce the structural residual deformation after earthquake.

Description

Field of Invention [0001] A self-resettable concrete shear wall equipped with high-strength bars belongs to the technical field of reinforced concrete shear walls. Background technique [0002] At present, the seismic design methods of structures in various countries mostly adopt the fortification criteria of "no damage in small earthquakes, repairable in moderate earthquakes, and no collapse in large earthquakes", allowing inelastic deformation of structures under moderate and large earthquakes. Buildings designed and constructed accordingly ensure the safety of people's lives. With the development of social economy, life safety is the goal of seismic fortification, which can no longer meet the needs of today's seismic fortification and social life. [0003] In the early 1990s, American scholars took the lead in proposing displacement-based seismic design theory, the core idea of ​​which is to control the structural displacement and the level of interstory displacement as a...

AI Technical Summary

Problems solved by technology

However, in the research of the existing seismic design methods based on the performance framework, more attention is paid to the maximum deformation of the structure and the control of the residual deformation of the structure after the earthquake is neglected.

Images