一字形短肢剪力墙结构抗震性能试验研究

Experimental research on seismic performance of short-pier shear wall structure with rectangular section

设计制作了6片一字形短肢剪力墙试件,分为3组,每组2个试件中,在保持配筋率一致的情况下,一个采用截面等强度配筋,另一个设置暗柱。对其进行了低周反复荷载试验,研究不同配筋形式下的一字形短肢剪力墙的抗震性能。基于试验结果,对试件的破坏形态、滞回性能、位移延性、耗能能力等方面进行了分析。结果表明:设置暗柱的一字形短肢剪力墙的承载能力、位移延性和耗能能力明显优于没有设置暗柱的,建议对一字形短肢剪力墙应采用带暗柱的配筋形式。

Six models of the rectangular section short-pier shear wall（SPW） were designed and divided into three groups.In each group,under the same reinforcement ratio,one specimen used uniform reinforcement and the other set concealed column.The models were tested under quasi-static,reversed cyclic horizontal loads in order to investigate the seismic performance under different reinforcement layout pattern.Based on the experimental results,seismic performance of the rectangular section SPW such as failure pattern,failure mechanism,characteristic loads,ductility and energy dissipation etc.were investigated.The results show that the seismic performance of the rectangular section SPW with concealed column is better.It is proposed that the concealed column should be planted at the rectangular section SPW.