建筑结构学报2013，Vol.34Issue(6)：75-83,9.
钢管-双层钢板-混凝土组合剪力墙抗震性能试验研究
Experimental study on seismic behavior of steel tube-double steel plate-concrete composite shear walls
摘要
Abstract
This paper proposed an innovative composite wall,named the steel tube-double plate-concrete composite shear wall,which is suited for use in the lower stories of super high-rise buildings.The seismic behavior of the composite walls was examined through results of an experimental research program where five rectangle-shaped wall specimens with a shear span ratio of 2.5 were tested.The test results indicate that the specimens fail in a flexural mode,characterized by local buckling of boundary steel tubes and steel plates,fracture of steel tubes,and compressive crushing of concrete at the wall base.The extent of concrete filled steel tubular (CFST) boundary elements significantly affects the deformation and energy dissipation capacities of the composite walls.The area ratio of steel plate has a minimal effect on the deformation capacity of the wall specimens.The addition of circular steel tubes embedded in the CFST boundary elements leads to an increase in the lateral load-carrying capacity of the composite walls,but it does not increase the wall' s deformation capacity.When the CFST boundary element' s extent is 0.2 times the wall' s sectional depth and the designed axial force ratio is 0.45,the wall specimen has a yield drift ratio of over 0.005 rad and an ultimate drift ratio of 0.030 rad.In addition,simplified formulas used to calculate the flexure strength of the composite walls were proposed.The evaluated results show good agreement with the test results,with errors no more than 10％.关键词
钢管-双层钢板-混凝土组合剪力墙/钢管混凝土约束边缘构件/轴压比/拟静力试验/抗震性能Key words
steel tube-double stell plate-concrete composite shear wall/ CFST boundary element/ axial force ratio/quasi-static test/ seismic behavior分类
建筑与水利引用本文复制引用
纪晓东,蒋飞明,钱稼茹,杨懿,施正捷..钢管-双层钢板-混凝土组合剪力墙抗震性能试验研究[J].建筑结构学报,2013,34(6):75-83,9.基金项目
国家自然科学基金青年科学基金项目(51008173),国家科技支撑计划课题(2011BAJ09B01),清华大学自主科研项目(2010THZ02-1,2011THZ03,2012THZ02-1). （51008173）
