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
张颖 1许岩 2兰日清 2张成宇 2汪志昊 3王进沛2
作者信息
- 1. 华北水利水电大学 土木与交通学院,郑州 450045;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
- 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
- 3. 华北水利水电大学 土木与交通学院,郑州 450045
- 折叠
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.
Abstract
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 anti-overturning 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Key words
vibration and wave/dual control of engineering vibration and seismic vibration/shaking table test/sliding bearing/steel spring bearing/laminated rubber bearing引用本文复制引用
基金项目
中国机械工业集团有限公司重大科技专项(SINOMAST-ZDZX-2020-03)
国家自然科学基金面上项目(51878274)
出版年
2024
国家科技期刊平台
NSTL
万方数据