轻型木结构剪力墙抗侧力性能试验与有限元分析

为研究国产钉连接轻型木结构剪力墙的抗侧力性能,对7组14片不同尺寸规格和构造的剪力墙进行了标准推力试验,并利用ABAQUS建立了剪力墙的有限元模型,对其工作性能进行分析.结果表明:钉连接失效是导致剪力墙破坏的主要原因;剪力墙的承载力和刚度与墙体宽度成正比;开洞剪力墙的承载性能均比宽度与洞口两侧墙肢总宽度相等的剪力墙高;石膏板对剪力墙的承载性能有显著提高作用.由试验和有限元分析结果拟合得到了预测剪力墙的荷载-位移曲线、极限承载力和刚度的经验公式.

Testing and FE modeling of lateral resistance of shearwalls in light wood frame structures

Performance of shearwalls is a key factor for light wood frame structures to resist lateral loads like wind and earthquakes. Lateral resistance tests were conducted on 14 shearwalls that were in 7 groups with different dimensions and structural arrangements. The fitted load-displacement curves of shearwalls were obtained from the tests. The effect of shearwall width, opening and gypsum panels on the lateral performance was investigated. Using ABAQUS, the finite element models were developed to simulate the behavior of shearwalls. The effect of shearwall width and non-standard sized (0.6m in width) sheathing panels was analysed numerically. The empirical equations to calculate the lateral resistance and stiffness of shearwalls were derived.