【摘要】 地铁振动带来的舒适度问题已经成为地铁上盖开发的重要制约因素，对地铁上盖结构设计提出了更高的要求。三维振震双控支座可以兼顾对水平向地震和竖向地铁振动响应进行控制，在地铁上盖开发中具有重要的研究和应用价值。提出了一种基于橡胶隔震支座和碟形弹簧的三维振震双控支座，并通过原型支座试验对其竖向刚度和解耦效果进行了验证。在此基础上，以某地铁上盖结构工程项目为背景，采用现场振动测试获得的地铁振动时程作为激励，建立了三维振震双控结构模型并进行了时程分析。计算结果表明，设置三维振震双控支座后，该结构水平向隔震效果显著；竖向Z振级减小，有效提高了地铁上盖结构的舒适度。更多还原

【Abstract】 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.更多还原