RETROFIT STEEL FRAME WITH ORDINARY BRACE AND BUCKLING-RESTRAINED BRACE
As a sensitive energy dissipation component, the Buckling-Restrained Brace (BRB) is superior to ordinary brace due to its excellent energy dissipation ability and ductility during earthquake. The basic composition of BRB as well as its mechanical behaviour is introduced. The loading progress of the BRB is precisely simulated considering various nonlinearities by FEM software ANSYS and the influence of restraint ratio to the BRB are put forward. Two methods of retrofitting steel frames with ordinary brace or Buckling-Restrained Brace are compared using the software SAP2000. The results show that the Buckling-Restrained Brace is a reliable and practical alternative to conventional lateral load-resisting systems, and is capable of enhancing the earthquake resistance of new and existing structures.
Hong Zheng Yu-Jun Cai
School of Construction Engineering, Changan University, Xian 710061, P.R. China
国际会议
长沙
英文
1146-1151
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）