Abstract：To study the seismic behavior of the longitudinal frames of Chuan-Dou-style wooden structures and compare it with trans verse frames, full-scale models of single-layer and two-span wooden frames were designed and manufactured according to structural construction guidelines in the Guizhou Province. The failure mode, hysteretic performance, stiffness degradation, and ductility of the frames were studied through low-frequency reversed cyclic loading tests. Based on the characteristics of the skeleton curve, a simplified double polyline load-displacement model of a Chuan-Dou-style wooden structure was proposed. The seismic mechanism was quantitaltively analyzed from the perspective of energy. The results show that the mortise and tenon lap joints of the longitudinal timber frame broke at the tenon neck, indicating that this connection is the weakest part of the structure. Both the longitudinal and transverse frames have good ductility but low lateral stiffness, which means that the frames easily tilt under lateral loads. The column base uplift of Chuan-Dou-style wooden structures plays a small role in resisting earthquakes. After reaching a certain displacement, a Chuan-Dou-style wooden structure primarily resists earthquake motions via hysteretic energy.
郭婷 杨娜 周海宾 王双永. 穿斗式纵向木构架抗震性能试验研究[J]. 土木工程学报, 2021, 54(S): 34-41.
Guo Ting Yang Na Zhou Haibin Wang Shuangyong. Experimental study of the seismic performance of Chuan-Dou-style longitudinal wooden frames. 土木工程学报, 2021, 54(S): 34-41.
