Experimental study on seismic performance of CFST frame structures with energy dissipation devices
作者： Fengming Ren , Yun Zhou , Jiebiao Zhang , Shaoming Lin
DOI: 10.1016/J.JCSR.2013.07.032
关键词:
摘要: Abstract Three model structures of concrete filled steel tubular (CFST) frame with a scaling ratio 1:4 were designed and tested in the present study. The structural elements three had same dimensions. Two them installed new triple-steel tube buckling-restrained brace (BRB). seismic behaviors evaluated by testing combined vertical constant compression lateral cyclic loads. performance, such as hysteretic behavior, skeleton curve, strength degradation, stiffness energy dissipation capacity strains at different locations without BRB was discussed detail. results show that CFST significantly improved load bearing capacity, deformability degradation being obviously reduced. has preferable mechanical behavior failure mode. It verified improves performance structures.
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