Optimization Design Of High Shear Wall Structure With Buckling Restrained Brace

Buckling constraint brace is a new type of energy dissipation components,which has advantages at Seismic performance for yielding not buckling after compression,is widely used in reinforced concrete structure and steel structure framework.but less as the main system used in the concrete structure.scholars exploit concrete structure with the buckling constraint braces through a series of studies and reasonable calculations,this methods Reduce the weight of structure and improve the structural seismic performance.Related studies have shown that,it is an important step in the development and design that how to realizes the buckling constraint brace reasonable application in concrete structures.This paper based on a transfinite tall buildings in Sichuan,adopt buckling constraint braces instead of part of the shear wall,after reasonable layout design,going on static nonlinear dynamic analysis and time history analysis,contrast different seismic performances,base on the inter layer displacement angle and inter layer shear,to give optimization design for concrete frame shear wall structure.Finally has a reasonable decorate form and relevant design suggestions.This paper purpose is how to use the buckling constraint support in concrete frame shear wall system for the purpose of reasonable decorating.First of all to establish relatively simple shear wall structure system,designing from the inter layer displacement angle,energy consumption and the plastic hinge distribution,to get the ideal buckling constraint braces arrangement method by different seismic performances and dates of Inter layer displacement,the inter layer displacement angle,shear layer.According to the specification,to support equivalent buckling constraints instead of part of the seismic design method of shear wall,also presents a simulation of buckling constraint support in Midas Gen.After application of this method,this idea is overrun by high-rise concrete frame shear wall system in combination with buckling constraint brace development,going on static nonlinear dynamic analysis and time history analysis,analysis of the parameters of base shear,inter layer displacement Angle,such as plastic hinge,and validate hysteresis curve of buckling constraint braces under the seismic action,This paper has the comprehensive measure rationality of buckling constraint braces.In addition,based on overrun of high-level structure,this paper has analysis of deformation process,the overall structure of the residual deformation,yield and energy consumption situation of structure with buckling constraint braces.analyzed and summarize different kinds of situation,Finally get seismic performance influence of the whole structure with buckling constraint braces.After comprehensive above factors,give design methods and design suggestion of buckling constraint braces in concrete shear wall.