双钢板-混凝土短肢组合剪力墙抗震性能试验

发布时间：2018-01-24 08:11

本文关键词： 双钢板-混凝土组合剪力墙短肢剪跨比单调和循环加载抗震性能　出处：《同济大学学报(自然科学版)》2016年09期 　论文类型：期刊论文

【摘要】：对4个双钢板-混凝土短肢组合剪力墙试件进行了试验,考虑了单调、循环两种加载方式以及1.0、2.0两种剪跨比,研究了该类墙体的破坏模式、延性、刚度、承载力、耗能等抗震性能指标.试验结果表明:组合剪力墙在加载过程中经历了混凝土的开裂和压溃、钢板的屈曲和屈服甚至断裂,其破坏模式属于典型的弯曲控制型破坏;组合剪力墙的位移延性系数均超过3.0,试件具有较好的变形能力;剪跨比为2.0的组合剪力墙具有更好的延性;循环加载组合剪力墙表面钢板的屈曲和混凝土的严重损伤,致使其耗能较差;循环加载组合剪力墙的极限荷载、延性系数较单调加载组合剪力墙均降低10%以上.提出限制表面钢板屈曲的优化建议.
[Abstract]:The failure mode and ductility of four composite shear wall specimens with double steel plate and concrete short limb were studied by considering the monotone cyclic loading mode and the shear span ratio of 1.0 and 2.0. The experimental results show that the composite shear wall experienced cracking and crushing of concrete, buckling, yield and even fracture of steel plate during loading. The failure mode belongs to the typical bending controlled failure. The displacement ductility coefficient of composite shear wall is more than 3.0, and the specimen has better deformation ability. The composite shear wall with a shear span ratio of 2.0 has better ductility. The surface buckling of steel plate and serious damage of concrete on the surface of composite shear wall under cyclic loading result in poor energy consumption. The ductility coefficient of the composite shear wall under cyclic loading is reduced by more than 10% compared with that of the monotone loaded composite shear wall. The optimization suggestions for limiting the buckling of steel plate on the surface are put forward.
【作者单位】：同济大学土木工程防灾国家重点实验室;
【基金】：国家自然科学基金重点项目(No:51038008)
【分类号】：TU398.9
【正文快照】： 现有工程结构领域多以钢筋混凝土剪力墙作为抗侧力构件,具有刚度和强度大的特点,但同时也表现出变形能力差、延性低的特点.双钢板-混凝土组合剪力墙(steel-concrete-steel wall,SCSW)结构是近年来国内采用的一种新型剪力墙结构形式,其主要由外包的双侧钢板、核心混凝土以及混

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