橡胶弹簧浮置板限位装置的设计与试验  

Design and test of the limiting device for rubber spring floating slab

作　　者：李贵花 乔昶 郝晨星 LI Guihua;QIAO Chang;HAO Chenxing(Beijing Jiuzhou Yigui Environmental Technology Co.,Ltd.,Beijing 100071,China;State Environmental Protection Engineering Center for Urban Rail Transit Vibration and Noise Control(in preparation),Beijing 100071,China)

机构地区：[1]北京九州一轨环境科技股份有限公司,北京100071 [2]国家环境保护城市轨道交通振动与噪声控制工程技术中心(筹),北京100071

出　　处：《轨道交通装备与技术》2025年第2期7-11,共5页Rail Transportation Equipment and Technology

基　　金：甘肃省科技计划项目(22CX8JA142);北京市基础设施投资有限公司科研项目(2022-10-06-01);天津市交通运输科技发展计划项目(2023-8)。

摘　　要：针对传统橡胶弹簧浮置板限位凸台施工困难、病害频发、难以维护引起的限位失效或减振短路问题,研发了一款不需要二次浇筑的橡胶弹簧浮置板限位装置。通过数值仿真及平台试验方法对限位装置的力学性能进行了分析,仿真结果表明在最不利工况下,限位装置各部件的最大应力均满足材料的强度要求,具有充足的安全余量,限位装置最大纵向位移为0.67 mm,最大横向位移为1.27 mm;平台试验结果表明限位装置最大横向位移为1.73 mm,较仿真结果略大,试验过程中限位装置或浮置板基底混凝土均无开裂,限位装置强度可满足工程需求。A limiting device for rubber spring floating slab which does not require reconstruction is developed to address the problems of limiting failure or vibration-reduction-related short circuit caused by the difficulty in construction,frequent damages and difficult maintenance of the limiting steps for traditional rubber spring floating slab.The mechanical performance of the limiting device is analyzed with the aid of numerical simulation and test platform.The simulation results show that,under the most unfavorable working conditions,the maximum stress of each component of the limit device meets the strength requirements of the materials with sufficient safety margin.The maximum longitudinal displacement of the limiting device is 0.67 mm,and the maximum lateral displacement is 1.27 mm;The platform test results show that the maximum lateral displacement of the limit device is 1.73 mm,slightly larger than the simulation results.During the test,no cracks are found in the concrete base of the limiting device or floating slab,and the strength of the limit device satisfies the engineering requirements.The findings of this research are of guiding significance for the practical application of the rubber spring floating slab.

关 键 词：橡胶弹簧浮置板 限位装置 受力情况 数值仿真 

分 类 号：U213.2[交通运输工程—道路与铁道工程]