MODAL AND CYCLIC PUSHOVER ANALYSIS FOR SEISMIC PERFORMANCE EVALUATION OF BUCKLING-RESTRAINED BRACED STEEL FRAME
Buckling-Restrained Braces (BRBs) are confirmed to have nearly the same yielding stress and ultimate strength under tension and compression. The BRBs can undergo fully-reversed axial yield cycles without loss of stiffness and strength, whose seismic energy dissipation ability is superior. Based on modal pushover analysis, the influence of higher vibration modes of Buckling-Restrained Braced steel frame was considered. Compared to non-linear static procedure, the results of modal pushover analysis agree better with that of nonlinear response history analyses. Based on cyclic pushover analysis, the hysteretic behavior of Buckling-Restrained Braced Steel Frame (BRBSF) was researched. After installed with BRBs, the energy dissipation of BRBSF is completed by the hysteretic deformation of BRBs, the seismic responses of the structure will be greatly reduced and seismic performance will be improved.
Buckling-Restrained Braces Buckling-Restrained Braced Steel Frame modal pushover analysis cyclic pushover analysis seismic performance
Mingming JIA Dagang LU Sumei ZHANG Shoulan JIANG
Graduate student of Ph.D, School of Civil Engineering, Harbin Institute of Technology, Harbin. China Professor, School of Civil Engineering, Harbin Institute of Technology, Harbin. China Graduate student of Master, School of Civil Engineering, Harbin Institute of Technology, Harbin. Chi
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）