【摘要】 介绍了一种聚四氟乙烯(PTFE)滑动支座的构造以及工作原理.采用有限元分析软件ABAQUS对PTFE滑动支座在水平位移激励作用下的滞回性能和地震激励作用下的位移响应进行了有限元分析.分析结果表明,该支座具有很好的滞回性能,但由于该支座没有复位装置,滑移后有残留位移,在应用时需根据实际情况预留水平方向的净间距.通过往复加载下支座的滞回性能分析和地震激励作用下的位移响应分析,为实际工程提供了结构支座设计的理论依据.更多还原

【Abstract】 In this paper,a PTFE sliding bearing of the structure and its working principle are investigated.The hysteretic behavior of horizontal displacement excitation and the displacement response of seismic excitation are analyzed by finite element method ABAQUS.The computed results show that the bearing has some good effects on consuming the energy of the seismic wave.Because the original isolation bearings do not have the function of resettlement,there is residual displacement after the bearing slipping in use.The net spacing along horizontal direction should be kept according to the actual situation of the bearing.Through the analysis of the hysteretic behavior,several useful suggestions for the design of the PTFE sliding bearing are proposed.更多还原