Experimental investigation on seismic behavior of short-leg steel-concrete-steel composite shear walls

被引：0
|
作者：
Wu X. [1 ]
Tong L. [1 ]
Xue W. [1 ]
机构：
[1] State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai
来源：
Xue, Weichen (xuewc@tongji.edu.cn) | 1600年 / Science Press卷 / 44期
关键词：
Monotonic and cyclic loading; Seismic performance; Shear-span ratio; Short-leg; Steel-concrete-steel composite shear wall;
D O I：
10.11908/j.issn.0253-374x.2016.09.003
中图分类号：
学科分类号：
摘要：
Four short-leg steel-concrete-steel composite shear wall specimens with shear-span ratio of 1.0 and 2.0 under monotonic and cyclic loading, were designed to investigate their failure mode, ductility, stiffness, load-bearing capacity and energy dissipation. The experimental results indicated that four composite walls failed in a flexure-dominated mode, undergoing concrete cracking, steel faceplate buckling and yielding, concrete crushing, steel faceplate fracture. The composite walls showed good deformation capacity with ductility coefficient more than 3.0. The wall with shear-span ratio of 2.0 had better ductility than the wall with shear-span ratio of 1.0. Compared with the wall under monotonic loading, the load-bearing capacity and ductility coefficient for the wall under cyclic loading were reduced by more than 10%. The wall under cyclic loading showed severer buckling of steel faceplates and damage of concrete, which reduced its energy dissipation. Structural measures to prevent buckling of steel faceplates are discussed. © 2016, Editorial Department of Journal of Tongji University. All right reserved.
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页码：1316 / 1323
页数：7
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