冷轧带肋钢筋焊接网剪力墙延性试验结果分析

通过5片以冷轧带肋钢筋焊接网作为分布筋、按《建筑抗震设计规范》CB50011—2001设置约束边缘构件的的矩形、工形和T形截面剪力墙在反复荷载作用下的试验,研究了在中、高轴压比下的冷轧带肋钢筋焊接网剪力墙的延性、变形能力及截面的应变分布;由极限破坏时截面应变分布的试验结果,计算剪力墙沿高度的位移分布,所得结果与试验结果的比较验证了计算方法的合理性．结果表明,冷轧带肋钢筋焊接网剪力墙具有较大的延性和变形能力,为冷轧带肋钢筋焊接网作为剪力墙分布筋的推广应用提供了试验依据．

Experimental Study on Ductility of Shear Walls with Cold-rolled Ribbed Welded Steel Fabric

Pseudo- static experiment of five solid shear wall specimens with cold - rolled ribbed welded steel fabrics as the distributed reinforcements are simply introduced in this paper. The specimens are rectangular section , I section and T section respectively. The confined boundary elements of the specimens are designed according to "Code for Seismic Design of Buildings" (GB50011 - 2001). Behaviors of shear wall such as deformation capacity, ductility and section strain distribution are investigated. The displacement distribution along wall height was calculated by means of related formulae based on the tested bar strains. The rationality of the calculation way was verified by the comparison between the analytical results and experimental results. The research indicates that shear walls have better ductility and deformation capacity, and experimental basis for shear walls with cold -rolled ribbed welded steel fabrics as the distributed reinforcements is obtained.