钢板剪力墙抗震性能试验研究

Experimental research on seismic behavior of steel plate shear walls

以天津国际金融会议酒店工程为背景对钢板剪力墙的抗震性能进行试验研究。完成了3个4层1∶5缩尺比例的钢板剪力墙试件的拟静力试验。试件主要变化参数包括墙板开洞和中柱设置。试件SPSW-1墙板开洞,试件SPSW-2墙板不开洞,试件SPSW-3带有中柱,且中柱一侧墙板开洞。在钢板剪力墙的墙板上布置了槽形和一字形两种截面形式的加劲肋。试验结果表明:钢板剪力墙结构具有良好的承载力、延性和耗能能力;开洞降低了钢板剪力墙结构的刚度和承载力;中柱提高了钢板剪力墙结构的刚度和承载力;加劲肋可增强钢板剪力墙结构的刚度和稳定承载力,开洞补强效应显著。

An experimental research was conducted on seismic behavior of steel plate shear walls,in order to support the design of the Tianjin International Financial Conference Hotel.Three model specimens of four story steel plate shear wall with 1∶ 5 scale were tested under low-cycle reverse load.One specimen with wall panels with openings was designated as SPSW-1,the second one with wall panels without openings was designated as SPSW-2,and the third one with wall panels with openings and an interior column was designated as SPSW-3.[-shaped and——shaped stiffeners were attached to wall panels of specimens.The test results show that steel plate shear walls have good strength,ductility and energy dissipation capacity,and the strength and stiffness of steel plate shear walls can be obviously reduced due to openings and improved due to the interior column.Stiffeners can be used to reinforce the openings so that the stiffness and stability of steel plate shear walls can be significantly enhanced.