建筑结构学报2017，Vol.38Issue(6)：155-162,8.DOI:10.14006/j.jzjgxb.2017.06.017
预压弹簧自恢复耗能支撑子结构抗震性能研究
Seismic performance research on substructures with pre-pressed spring self-centering energy dissipation brace
摘要
Abstract
A series of low cyclic reversed loading tests and numerical simulation on the pre-pressed spring selfcentering energy dissipation (PS-SCED) brace were carried out.Results indicate that the hysteretic curves of simulations on PS-SCED braces have good agreement with those of tests.PS-SCED braces exhibit stable flag-shaped hysteretic performance with good energy dissipation capacity and self-centering capacity.Seismic performance analyses of the PS-SCED braced substructures with rigid and hinged connections were carried out,and results indicate that the hinged braced substructure has better ductility,more stable flag-shaped hysteretic performance and higher bearing capacity,and has a better ability to control the residual deformations than the rigid connected braced substructure.The mechanical performance of rigid connected brace is greatly influenced by the passing moment of the connecting plate.The energy dissipation capacity of the hinged brace is 1.4-2.3 times of the rigid connected brace,and the energy dissipation contribution of the hinged brace to substructure has increased by 34％-40％ compared with that of the rigid connected brace.The maximum residual deformation of the hinged brace is 25.5％ of the rigid connected brace,which indicates that the residual deformations are eliminated by the hinged braces basically.关键词
自恢复耗能支撑/铰接/刚接/数值模拟/抗震性能Key words
self-centering energy dissipation brace/hinged connection/rigid connection/numerical simulation/seismic performance分类
建筑与水利引用本文复制引用
徐龙河,代长顺,樊晓伟,逯登成..预压弹簧自恢复耗能支撑子结构抗震性能研究[J].建筑结构学报,2017,38(6):155-162,8.基金项目
国家重点研发计划项目(2016YFC0701101),国家自然科学基金项目(51322806,51578058). （2016YFC0701101）
