两边连接薄钢板剪力墙抗侧力性能研究

为了研究两边连接薄钢板剪力墙的抗侧力性能，以钢板高厚比(400、611)和高宽比(0.61、1.10、1.57)为参数，设计6个两边连接薄钢板剪力墙试件，对其进行水平低周反复荷载试验，研究试件的滞回性能、骨架曲线、承载力、耗能能力、刚度退化等性能。试验结果表明，随着钢板高厚比和高宽比的减小，试件的抗侧刚度、承载力和耗能能力明显提高，高宽比对承载力影响较大；各试件屈服时的位移角在1/200~1/160之间，极限位移角均大于1/50，位移延性系数均大于5，具有较好的延性，高宽比和高厚比对屈服位移角的影响较小。利用有限元方法对各试件进行数值分析，分析结果与试验结果吻合较好，随钢板高宽比减小，拉力带的有效宽度增加,承载力和抗侧刚度增大。

Study on lateral force resistance of thin steel plate shear wall connected on both sides

In order to study the lateral force resistance performance of the thin steel plate shear wall connected on both sides, six steel plate shear wall specimens connected on both sides were designed and tested under horizontal low-cycle reversed loads. The test variables included the height-to-thickness ratios (400 and 611) and aspect ratios (0.61, 1.10 and 1.57) of the steel plate. The hysteretic performance, skeleton curves, bearing capacity, energy dissipation capacity, stiffness degradation and other properties of the specimen were studied. The test results show that as the height-to-thickness ratio and aspect ratio of the steel plate decrease, the lateral stiffness, bearing capacity and energy dissipation capacity of the specimens increase significantly. The aspect ratio has a relatively large effect on the bearing capacity. The displacement angle of the specimens at yield point is between 1/200-1/160, the ultimate displacement angle is greater than 1/50, and the displacement ductility coefficient is greater than 5, which shows good ductility. The height-to-thickness ratio and aspect ratio have little effect on the yield displacement angle. The finite element method was used for numerical analysis on each specimen. The analysis results are in good agreement with the test results. As the aspect ratio of the steel plate decreases, the effective width of the tension band increases, the bearing capacity and lateral stiffness increase.