水平加劲钢板剪力墙承载性能试验研究

加劲钢板剪力墙结构是一种适合工业化生产的新型抗侧力构件。为考察水平加劲钢板剪力墙的受力性能,分别对两榀1/3水平加劲模型试件进行推覆和低周反复荷载试验,研究水平加劲钢板剪力墙的变形性能,分析结构滞回性能、刚度退化、延性和耗能能力等。研究结果表明:水平加劲钢板剪力墙的抗侧刚度较高、耗能能力好、延性系数大于3、承载力退化缓慢。钢板剪力墙水平加劲肋门槛刚度的确定应基于钢板剪力墙弹塑性分析。

EXPERIMENT RESEARCH ON STEEL PLATE SHEAR WALL WITH HORIZONTAL STIFFENER

To realize industrialization in residence building,the lateral resisting system must be prefabricated. The steel plate shear wall was one of the selections. Two 1∶ 3 scaled models of steel plate shear walls with horizontal stiffener were tested with monotonic load and low cyclic load respectively. The deformation performance of steel plate shear wall was investigated,and the hysteretic behavior,stiffness degradation,ductility and energy dissipation of the stiffened steel plate shear walls were analyzed. Test results show that the specimens presented high initial stiffness,good energy dissipation capacity and good ductility with the ductility factor greater than 3 and slow degradation of the load-carrying capacity. The elastic-plastic analysis should be used to research on threshold stiffness of tranverse stiffener.