基于模态等效法的地铁车站抗震虚拟实时混合试验研究  

Research on Virtual Real-time Hybrid Test of Metro Station Seismic Resistance Based on Modal Equivalent Method

作　　者：袁勇[1] 杨澄宇[1] 蔡雪松 YUAN Yong;YANG Chengyu;CAI Xuesong(State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,200092,Shanghai,China;不详)

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]哈尔滨工程大学烟台研究(生)院,烟台265501

出　　处：《城市轨道交通研究》2022年第8期187-190,197,共5页Urban Mass Transit

基　　金：土木工程防灾国家重点实验室课题(SLDRCE19-A-13)。

摘　　要：地铁车站结构抗震混合试验技术采用地层-结构模式研究结构的抗震性能,其中数值子结构的计算量大。本文在模态等效法虚拟混合试验架构的基础上,根据地铁车站结构受力特点进行子结构划分,提出了基于模态等效法的地铁车站结构抗震虚拟实时混合试验方法,并以实际工程为背景进行了虚拟试验,分析了地铁车站关键构件在地震过程中的响应。结果表明:混合试验结果与数值结果匹配较好,子结构划分技术合理。所提出的混合试验方法可为后续物理实时混合试验提供理论基础。Metro station structure seismic resistance hybrid test technology adopts stratum-structure mode to study the structure seismic performance,of which the numerical sub-structure has large calculation volume.Based on modal equivalent method virtual hybrid test architecture,sub-structure is divided considering metro station structure stress features.A metro station structure seismic resistance virtual real-time hybrid test method based on modal equivalent method is proposed.Taking actual engineering project for background,virtual test is carried out to analyze the response of metro station key components during ground motion.Results show that the hybrid test result matches well with numerical result,and the sub-structure division technology is reasonable.The proposed hybrid test method provides theoretical basis for subsequent physical real-time hybrid simulations.

关 键 词：地铁车站 抗震分析 实时混合试验 质点弹簧模型 

分 类 号：TU352.11[建筑科学—结构工程] U231.4[交通运输工程—道路与铁道工程]