TMD型防屈曲支撑构造及减振与抗震性能研究(Ⅰ)  

Structure and Vibration-reduction Study on Tuning Mass Dampered-buckling Restrained Brace(Ⅰ)

作　　者：张玥[1] 高向宇[1] 尹学军 付学智 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]青岛科而泰环境控制技术有限公司,青岛266101

出　　处：《北京工业大学学报》2014年第10期1503-1511,共9页Journal of Beijing University of Technology

基　　金：国家自然科学基金项目资助(51378038)

摘　　要：为使防屈曲支撑(BRB)功能复合化,作者以约束部件为质量块,钢芯为滑道,通过弹簧连接,使BRB在保持原自身构造和力学属性不变的基础上,成为可设计分散式调谐质量阻尼器——TMD-BRB.理论分析表明,构件斜向放置不会影响TMD工作频率,TMD动力系数受振幅、工作周期和激振频率影响,接触摩擦系数宜控制在0.3以下.下滑试验和有限元计算显示,该构造能获得较高的动力系数和稳定的滞回性能.For the composite functions of BRB implementation, SRC tube confining the steel core designed as a TMD mass, the core taken as the sliding track, and additional springs added as resilient elements, a new type damper called Tuning Mass Dampered-Buckling Restrained Brace （TMD-BRB） was studied. Results show that it has no affect on the working frequency by slant setting for the component. The TMD dynamic coefficient affects by amplitude, working period and vibration frequency. The contact friction coefficient should be controlled below 0.3. Sliding tests and FEM analysis show that it has a high dynamic coefficient and a stable hysteresis performance by this recommended construction.

关 键 词：防屈曲支撑(BRB) 调频质量阻尼器(TMD) 有限元分析 

分 类 号：TU352.1[建筑科学—结构工程]