Research on Vibration Reduction Effect of Three-Dimensional Bearing for Dual Control of Subway and Earthquake-Induced Vibrations in Over-Track Buildings
Subway-induced vibrations have become a significant constraint in the development of over-track buildings,imposing higher demands on structural design.To address this issue,researchers have explored the concept of three-dimensional bearings capable of mitigating both subway and earthquake-induced vibrations.Such dual-control bearings hold substantial research and practical value for over-track buildings'development.In this paper,the three-dimensional bearing based on rubber isolation bearing and disc spring is proposed,and its vertical stiffness and decoupling effects are verified through prototype bearing tests.On this basis,this paper takes an over-track building engineering project as the background,uses the subway vibration time history obtained by the in-situ vibration test as the excitation,establishes the isolation structure,and carries out the time history analysis.The results indicate the bearing's effectiveness in decreasing horizontal seismic vibrations.Moreover,the vertical Z vibration level can be reduced,which proves the bearing can improve the comfortability of the over-track buildings.
three-dimensional bearing for dual control of subway and earthquake-induced vibrationsdisc springover-track buildingssubway-induced vibrationcomfortability evaluation
万方数据
维普
