钢竹组合墙体的抗震性能试验研究

EXPERIMENTAL RESEARCH ON EARTHQUAKE RESISTANCE OF WALL COMPOSED OF COLD FORMED STEEL AND PLYBAMBOO

对压型钢板和竹板组成的组合墙体,进行了5块试件的抗震试验研究。对由两种不同型号和厚度的压型钢板以及不同厚度竹板的两类墙体试件进行了无竖向力水平低周反复加载和有竖向力水平低周反复加载试验,得到了各类墙体的承载力指标和位移延性系数μ、耗能系数E等抗震性能指标。试验结果表明:竹板的厚度改变对墙体的水平抗剪强度、刚度影响不大,而压型钢板的厚度和波高的变化对墙体的承载力指标和位移延性系数μ、耗能系数E等抗震性能指标影响显著。

Abstract：The experimental research on earthquake resistance of five wall specimen composed of cold- formed steel and plybamboo has been finished. There are two kinds of wall specimens which are combined by cold- formed steel with two different models and thickness and plybamboo with different thickness. The repeating loads of low cycle without vertical loads and the repeating ones with vertical loads have been forced on the two kinds of specimens. The indexes of the performance of earthquake resistance were obtained, such as the bearing capacity, displacement ductility factor and energy dissipation coefficient E. The result shows that there is little influence on the level shear strength and stiffness if the plybamhoo thickness changes, but there is significant impact on the bearing capacity, displacement ductility factor and energy dissipation coeffi- cient if the cold - formed steel deck thickness and wave height change.