村镇典型木结构榫卯及木构架抗震性能试验研究

Seismic Performance of the Typical Timber Structure and Mortise-tenon Joints in Villages

通过对三榀直榫榫卯连接形式的村镇典型木构架模型在水平低周反复荷载反复作用下的试验研究,得到了三榀不同尺寸的木框架的破坏特征、滞回曲线、骨架曲线、强度和刚度退化规律、变形及耗能等性能。试验结果表明:当木柱尺寸变大或者柱距变小时,木框架的强度和刚度有明显增加,抗震性能变好;村镇典型木结构房屋具有非常好的变形能力。

Low-cyclic reversed loading tests are conducts on three typical timber models with different sizes in villages and small towns. Their behaviors, such as the failure characteristic, hysteretic curve and skeleton curve, degeneration of strength and rigidity, deformation and energy dissipation capacity, are analyzed. The results indicate that when the sizes of the timber columns become bigger or the column distance become smaller, the strength and rigidity of the timber frames and seismic performance become better. The typical timber houses in villages and small towns exhibit good deformation performance.