【作者】 马春艳； 段树金； 林玉森；

【Author】 MA Chunyan,~*Duan Shujin,LIN Yusen (School of Civil Engineering,Shijiazhuang Tiedao Institute,Hebei Shijiazhuang 050043)

【机构】 石家庄铁道学院土木工程分院；

【摘要】 提出一种榫卯连接方钢管组装框架结构。对平面框架模型振动激励,测得了结构的第一自振频率;建立了半刚性节点连接框架的有限元分析模型,得到了结构的自振频率和振动模态等振动特性,给出了节点刚度-结构基频曲线。数值分析结果与试验测试结果吻合良好,表明本文结构属于半刚性节点框架的范畴,可以用半刚性节点连接体系模型进行静力和动力特性分析,从而为榫卯连接结构的设计计算奠定了理论基础。更多还原

【Abstract】 A kind of assembly steel frame with mortise and tenon joints is presented.The first self-vibration frequency of the framework model is measured through a free vibration test.The finite element analysis model of the semi-rigid steel frame is established and the vibration characteristics are obtained.The curve of joint stiffness and the fundamental frequency is plotted.The numerical results are in good agreement with the experimental results which indicates that this structure is a kind of the semi-rigid connection framework,static and dynamic characteristic can be analyzed by semi-rigid-connection system model.So this study lay a theoretical foundation for design and calculation of the structure with mortise and tenon connection.更多还原