建筑结构学报2018，Vol.39Issue(4)：54-64,11.DOI:10.14006/j.jzjgxb.2018.04.007
高强螺旋钢筋约束高强混凝土剪力墙抗震性能研究
Experimental study on seismic behavior of high-strength concrete shear walls confined with high-strength spiral reinforcements
摘要
Abstract
In order to improve the deformation capacity of high-strength concrete shear walls,five high-strength concrete shear walls confined with high-strength spiral reinforcements of different parameters and a normal shaped reinforced concrete shear wall were designed to conduct the quasi-static test.Traditional stirrups for confining boundary members of the shear walls were substituted with high-strength spiral stirrups.The horizontal distribution bars in the wall body were also replaced by high-strength spiral reinforcement replacement.The influences of axial compression ratio,stirrup characteristic value,stirrup configuration and the average confining stress on bearing strength,ductility,and failure mode of the shear walls were studied.The results show that stirrups and horizontal distribution bars formed by nested high strength spiral reinforcement can effectively confine high-strength transverse deformation of concrete,enhance bearing capacity and ductility of the high-strength concrete shear wails,reduce stiffness and strength degradation,and significantly improve the seismic performance of high-strength concrete shear walls under high axial compression ratios.关键词
高强混凝土剪力墙/高强矩形螺旋钢筋/拟静力试验/抗震性能Key words
high-strength concrete shear wall/high-strength rectangular spiral steel bar/quasi-static test/seismic behavior分类
建筑与水利引用本文复制引用
赵花静,李青宁,姜维山,张兴虎..高强螺旋钢筋约束高强混凝土剪力墙抗震性能研究[J].建筑结构学报,2018,39(4):54-64,11.基金项目
国家自然科学基金项目(51278402),西安建筑科技大学青年科技基金项目(QN1635). （51278402）
