叠层橡胶-可滑动钢弹簧振震双控装置隔震(振)效果研究  

Study on Isolation Effect of the Dual Control Device of Laminated Rubbers Combined with Sliding Steel Spring Bearings

作　　者：张颖 许岩 兰日清 张成宇 汪志昊 王进沛 ZHANG Ying;XU Yan;LAN Riqing;ZHANG Chengyu;WANG Zhihao;WANG Jinpei(School of Civil Engineering and Communication,North China University ofWater Resources and Electric Power,Zhengzhou 450045,China;SINOMACH Engineering Vibration Control Technology Research Center,SINOMACH Academy of Science and Technology Co.,Ltd.,Beijing 100080,China)

机构地区：[1]华北水利水电大学土木与交通学院,郑州450045 [2]国机集团科学技术研究院有限公司,国机集团工程振动控制技术研究中心,北京100080

出　　处：《噪声与振动控制》2024年第2期273-279,共7页Noise and Vibration Control

基　　金：中国机械工业集团有限公司重大科技资助专项(SINOMAST-ZDZX-2020-03);国家自然科学基金面上资助项目(51878274)。

摘　　要：为解决传统水平隔震支座难以实现竖向减振的难题,研发叠层橡胶-可滑动钢弹簧振震双控装置,提出新型振震双控装置的设计原理及装配方法,结合振动台试验与有限元分析验证该装置的隔震性能,并通过数值仿真分析讨论其竖向减振效果。结果表明:由钢弹簧、摩擦滑移支座和叠层橡胶组成的新型振震双控装置,具有水平和竖向刚度低,抗倾覆能力强的优点;地震动作用下,水平向加速度峰值降低达80%;地铁竖向振动作用下,减振双控装置上部结构的加速度响应减小90%,分频最大振级减小19.93 dB。To solve the difficulty to realize the vertical vibration reduction of traditional isolation bearings,the dual control device of the laminated rubber combined with slide steel spring bearings is researched and developed.The new design principle and assembly method of the dual control device are put forward.The isolation performance of the device is verified through the shaking table test and finite element analysis.The vertical vibration reduction effect of the device is discussed through the numerical simulation analysis.The results show that the new dual-control device composed of steel spring,friction-slip support and laminated rubber has the advantages of low horizontal and vertical stiffness and strong antioverturning ability.Under the action of ground motion,the peak value of horizontal acceleration decreases by 80%.Under vertical vibration of the metro,the acceleration response of the superstructure of the dual control device decreases by 90%,and the maximum frequency division vibration level decreases by 19.93 dB.

关 键 词：振动与波 振震双控 振动台实验 滑动支座 钢弹簧支座 叠层橡胶支座 

分 类 号：TU311.3[建筑科学—结构工程]