低剪跨比双钢板-混凝土组合剪力墙抗震性能试验研究

Experimental research on seismic behavior of low shear-span ratio composite shear wall with double steel plates and infill concrete

为研究低剪跨比双钢板-混凝土组合剪力墙的抗震性能,完成了2片低剪跨比双钢板-混凝土组合剪力墙和1片低剪跨比钢筋混凝土剪力墙试验,研究了高轴压比剪力墙在低周往复荷载作用下的变形能力、破坏模式,得到了试件滞回曲线、骨架曲线、承载力、位移延性系数、刚度退化、承载力退化和耗能能力等,分析了不同形式连接件对抗震性能的影响。试验结果表明:与钢筋混凝土剪力墙相比,低剪跨比双钢板-混凝土组合剪力墙受剪承载力显著提高,具有良好的延性和耗能能力,抗震性能良好。

In order to study the seismic performance of low shear-span ratio composite shear wall with double steel plates and infill concrete,two low shear-span ratio composite shear walls with double steel plates and infill concrete and one low shear-span ratio reinforced concrete shear wall were tested.The deformation performance and failure modes were observed under low cyclic lateral loads with high axial compression ratio.Valuable results were obtained for the hysteretic curves,skeleton curves,bearing capacity,ductility,stiffness degradation,strength degradation and energy dissipation capacity.The effects of different forms of connection on seismic performance were analyzed.The results indicate that compared with the reinforced concrete shear wall,the low shear-span ratio composite shear wall with double steel plates and infill concrete shows greatly improved bearing capacity,adequate ductility,energy dissipation capacity and good seismic performance.