建筑结构学报2018，Vol.39Issue(5)：45-51,7.DOI:10.14006/j.jzjgxb.2018.05.006
板柱-人字形屈曲约束支撑抗震性能试验研究
Experimental research on seismic behavior of RC slab-column frame strengthened by chevron buckling restrained braces
摘要
Abstract
Buckling restrained braces have dual functions of both providing lateral stiffness and improving seismic performance under earthquake in an economic and flexible way. To strengthen the performance of slab-column system, chevron buckling restrained braces were applied at slab-column connections. A quasi-static test on a one-half scale, one-bay and one-story model was conducted to evaluate the seismic performance of the slab-column frame with chevron buckling restrained braces. The results show that the cracks are mainly located in the range of 1 /3 slab length around both columns and lower 1 /3 of the column height,which are also the most severely damaged locations. The specimen still has bearing capacity when the deflection angle reaches 1 /50. The model finally fails due to the failure of tensile brace in the loading process of deflection angle 1 /30 (50 mm displacement). Adopting ABAQUS finite element method,skeleton curves and plastic damage of slab-column structures with and without chevron buckling restrained braces were compared. According to the experiment and FEM simulation results,the chevron buckling restrained braces can effectively increase the lateral bearing capacity and lateral stiffness of slab-column structure,which should be considered in design and strengthening of slab-column structure.关键词
板柱结构/屈曲约束支撑/人字形/拟静力试验/位移角/破坏模式/塑性损伤/抗震性能Key words
slab-column structure/buckling restrained braces/chevron/quasi-static test/deflection angle/failure mode/plastic damage/seismic performance分类
建筑与水利引用本文复制引用
薛彦涛,牛向阳,王璐..板柱-人字形屈曲约束支撑抗震性能试验研究[J].建筑结构学报,2018,39(5):45-51,7.基金项目
中国建筑科学研究院自筹基金科研项目(20160122330730015). （20160122330730015）
