转动型摩擦阻尼器力学性能及抗震效果分析  

ANALYSIS OF MECHANICAL PROPERTIES AND SEISMIC BEHAVIOR OF ROTATION TYPE FRICTION DAMPERS

作　　者：隋伟宁[1] 周魁 王占飞 SUI Weining;ZHOU Kui;WANG Zhanfei(Department of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China;School of Traffic Engineering, Shenyang Jianzhu University, Shenyang 110168, China)

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168 [2]沈阳建筑大学交通工程学院,沈阳110168

出　　处：《工业建筑》2018年第4期137-143,共7页Industrial Construction

基　　金：国家自然科学基金项目(51108278);辽宁省教育厅(LJQ2013063)

摘　　要：转动型摩擦阻尼器通过钢板间转动摩擦消耗地震能量。通过采用ABAQUS有限元软件对转动摩擦阻尼器的力学性能进行数值模拟,分析中考虑了转动摩擦阻尼器螺栓预紧力大小、转动摩擦系数和摩擦面个数3个设计参数;通过考察不同设计参数对该类阻尼器弯矩-转角滞回曲线的影响,确定影响转动摩擦阻尼器力学性能的主要影响参数。在OPENSEES分析软件中对包含了转动摩擦型阻尼器的钢框架结构进行弹塑性动力时程分析,动力时程分析中采用了Tohoku和El Centro两种地震波,分别考察了转动摩擦阻尼器在多遇地震和罕遇地震下对钢框架结构抗震性能的影响情况。研究结果表明：多层钢框架结构中的转动型摩擦阻尼器具有良好的耗能减震效果。The rotation type friction damper（RTFD） consumes earthquake energy by rotating friction between steel plates. Finite element analysis software ABAQUS was used to simulate the mechanical properties of RTFD. Three design parameters,which including pre-tightening force value of bolt of RTFD,rotating friction coefficient and the friction surface number,were considered. By studying the influence of different design parameters on the bending moment-curvature hysteresis curve of the damper,the main influence parameters on the mechanical properties of the rotating friction damper were determined. Then,the elastic-plastic dynamic time history analysis of the steel frame structures with RTFD were carried out with OPENSEES analysis software. Two kinds of seismic waves,Tohoku and El Centro,were used in the dynamic time-history analysis procedure. The effects of RTFD on the seismic behavior of steel frame structures under frequent earthquakes and rare earthquakes were investigated. The results showed that the RTFD in multi-layer steel frame structure had a good energy dissipation capacity.

关 键 词：转动摩擦阻尼器 转动弯矩 预紧力 转动摩擦系数 摩擦面个数 

分 类 号：TU352.1[建筑科学—结构工程]