基于几何非线性的Pall型摩擦阻尼器滞回特性分析与试验验证  

Analysis of hysteretic behavior of Pall-typed frictional dampers considering geometrical nonlinearity and corresponding test verification

作　　者：吴斌[1] 张纪刚[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《地震工程与工程振动》2001年第S1期60-65,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金(59908002) ;哈尔滨工业大学科学研究基金项目(HIT2000080)

摘　　要：本文从Ｐａｌｌ摩擦阻尼器四连杆机构的几何非线性变形特征出发，分析一种改进的Ｐａｌｌ摩擦阻尼器——Ｔ形芯板摩擦阻尼器的滞回特性以及支撑的受力特点。本文与不考虑几何非线性的简化计算方法得到完全不同的结论：支撑的拉力在阻尼器起滑后并不保持为一常数，而是呈显著增加趋势，支撑最大拉力可达起滑时的２～３倍。试验结果也充分验证了这一结论。这一结论意味着按传统简化计算方法设计的Ｐａｌｌ阻尼结构可能存在较大安全隐患。The hysteretic behavior of an improved Pall frictional damper (PFD) T-shaped cone plate frictional damper (TFD) is analyzed based on the geometrical nonlinearity of four-link mecha- nism of the damper. and corresponding verification test is carried out. The analysis and test results show that the tension force of the brace does not keep constant but increases remarkably after the slipping of TFED, and the maximum tension force can be as high as twice or even three times of tension force at initial slipp...

关 键 词：耗能减振 摩擦阻尼器 几何非线性 

分 类 号：TU352.1[建筑科学—结构工程]