弹性滑移支座力学性能的试验研究  

Experimental Study on Mechanical Behavior of an Elastic Sliding Bearing

作　　者：王璐[1] 王曙光[1] 欧谨[1] 刘伟庆[1] 

机构地区：[1]南京工业大学土木工程学院,南京210009

出　　处：《防灾减灾工程学报》2010年第1期77-82,共6页Journal of Disaster Prevention and Mitigation Engineering

基　　金：国家自然科学基金项目(50608039)资助

摘　　要：介绍了弹性滑移支座的原理、构造和特点;通过对其在不同工况下的性能试验,研究了竖向荷载、位移幅值以及加载频率对弹性滑移支座力学性能的影响,并给出了试验值与理论计算值之间的对比。研究结果表明:弹性滑移支座具有良好的工作性能,滞回曲线饱满,耗能能力强;竖向荷载和加载频率对弹性滑移支座的力学性能有一定的影响,而位移幅值对其影响较小;弹性滑移支座的恢复力模型,可以用考虑速度的指数摩擦力模型来描述,并且模拟得较为准确。The principle of an elastic sliding bearing and its structure as well as characteristics are introduced in this paper.By testing its performance under different conditions,the influence of vertical load,displacement amplitude,and loading frequency on the bearing performance were analyzed.Experimental data and calculated theoretical ones are presented for comparison.The results show that the elastic sliding bearing has excellent working performance with full looping curves and high capacity for energy dissipation.The vertical load and the loading frequency have certain effect on the mechanical performance,while the displacement amplitude has little effect.A restoring force model of the bearing can be described with the exponential friction model considering velocity with high accuracy.

关 键 词：弹性滑移支座 力学性能试验 滞回曲线 摩擦力模型 

分 类 号：TB125[理学—工程力学]