摘要
针对高烈度区湖湘沉积土层中昆明轨道交通地铁1号线和4号线综合换乘车站工程场地条件及车站主体结构,基于弹塑性力学黏弹性边界理论,应用三维有限元软件建立该轨道综合换乘车站的三维有限元动力分析模型,选取适合该场地的EI Centro波、San Fernando波及人工波作为地震动输入,分别研究该综合换乘车站在动峰值加速度为0.2g的三种地震波作用下的水平方向动力响应情况.研究结果表明,新建轨道车站对已有轨道车站变形有约束作用;地震波的输入方向对综合换乘车站刚度较弱的部位有明显的影响,且下层车站的相对变形较小;新建轨道车站与已有轨道车站的连接处出现明显的应力集中.研究结果可为城市轨道车站的抗震设计提供参考价值.
Aiming at the condition of the engineering site and the main structure of the station in the comprehensive transfer station of Kunming Rail Transit metro line Line 1 and Line 4 in the lacustrime sediment of highly seismic region,based on the viscoelastic boundary theory of elastoplastic mechanics,this paper established three-dimensional finite element dynamic analysis model of the integrated transfer station of the urban railway,and select the EI Centro wave,San Fernando wave and artificial wave for the site as ground vibration input,the horizontal dynamic response of the integrated transfer station under the action of three seismic waves with dynamic peak acceleration of 0. 2 g was studied respectively. The calculation results showed that the deformation of the existing railway station was constrained by the newly built railway station;the input direction of the seismic wave has obvious influence on the lower stiffness of the integrated transfer station,and the relative deformation of the lower station was small;There was obvious stress concentration at the junction between the newly built railway station and the existing railway station. The results can provide reference for seismic design of urban rail stations.
作者
马腾飞
谢建斌
孙孝海
高阳
刘思楠
陈伟
张文豪
刘道炎
MA Teng-fei;XIE Jian-bin;SUN Xiao-hai;GAO Yang;LIU Si-nan;CHEN Wei;ZHANG Wen-hao;LIU Dao-yan(Liupanshui Normal University,Liupanshui 553004,China;School of Architecture and Planning,Kunming 650000,China;China Tunnel Group Two Co.,Ltd.,Sanhe 065200,China)
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2020年第1期58-64,共7页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
国家自然科学基金项目(11862024,51264037)
关键词
高烈度区
湖湘沉积土层
城市轨道换乘车站
黏弹性边界
地震波
动力响应
三维有限元动
highly seismic region
lacustrime sediment
urban railway transfer stations
viscoelastic boundary
earthquake wave
dynamic response
3-D finite element dynamic analysis
