The size of the tenon of dovetail-tenon joints in ancient wooden-structure buildings has always been designed according to the traditional proportion,but the influence of the change in tenon size,including the retraction angle,on the seismic performance of the joint needs to be further studied.Four types of finite element models including the standard speci-men model are established by referring to existing experiments and taking the tenon width,tenon length and retraction angle as the influencing parameters.The models are analyzed by applying the cycle loads to itself.The effectiveness of the numerical simulation method is verified by comparing the analysis and the experimental results of the standard specimen model.On this basis,the hysteresis loops,stiffness degradation curves,skeleton curves and degree of tenon pull-out of the four types of models are obtained.The results of the compari-son of the above data show that appropriately increasing the retraction angle and the tenon length can improve the connection performance and seismic performance of the dovetail-tenon joints.
关键词
燕尾榫节点/榫头尺寸/有限元分析/滞回性能
Key words
dovetail-tenon joints/size of tenon/finite element analysis/hysteretic perform-ance
维普
万方数据