钢混组合结构地铁高架车站墩柱间距影响研究  

Research on the Influence of the Distance between Columns in the Elevated Metro Station with the Steel-concrete Composite Structure Form

作　　者：赵丹[1] 庄旺 安永林[3] 黄娟[1] ZHAO Dan;ZHUANG Wang;AN Yonglin;HUANG Juan(Central South University,Changsha,Hunan 410012,China;Chansha Metro Group Co.Ltd,Changsha,Hunan 410007,China;Hunan University of Science and Technology,Xiangtan,Hunan 411201,China)

机构地区：[1]中南大学,长沙410012 [2]长沙市轨道交通集团有限公司,长沙410007 [3]湖南科技大学,湘潭411201

出　　处：《铁道工程学报》2021年第5期103-108,共6页Journal of Railway Engineering Society

基　　金：国家自然科学基金资助项目(51878670,51778636)。

摘　　要：研究目的:针对长沙轨道交通某钢混组合结构高架车站首层双墩柱三种不同的布置方式进行研究,采用有限元空间整体建模对车站整体模型首层墩柱不同的间距布置方案进行地震作用及各荷载组合作用下的计算与分析。基于整体建模和结构性能化设计理念,比较双墩柱三种不同间距(1.6 m、2.6 m、3.6 m)布置条件下,钢混组合地铁高架车站结构相应的结构整体受力、墩柱及悬臂盖梁等关键构件的受力与变形差异。研究结论:(1)墩柱间距对钢混组合车站结构的整体受力性能具有较大的影响,对车站悬臂盖梁竖向变形影响较小;(2)建模分析时应尽量考虑首层两墩柱间距的影响;(3)本文研究可为现行地铁高架车站的性能化设计提供理论指导与参考。Research purposes: In this paper, three different arrangements of pier columns in an elevated metro station with the steel-concrete composite structure form on the first floor in Changsha Metro are studied. Finite element models of different overall models of the station are built up, and different pier column arrangement are calculated and analyzed under the seismic conditions and various load combinations. Based on the concept of overall modeling and structural performance-based design, this paper compares the stress conditions and deformations of pier columns and cantilever beams under three different layout conditions of double pier columns with different spacing(1.6 m, 2.6 m, 3.6 m).Research conclusions:(1)The distance between pier columns has a great influence on the overall mechanical behavior of the steel-concrete composite station structure, and has little influence on the vertical deformation of the cantilever beams of the station.(2)The influence of the distance between double pier columns on the first floor should be considered as much as possible in the seismic analysis.(3)The research can provide theoretical guidance and reference for the performance-based design of similar elevated metro stations.

关 键 词：钢混组合 地铁 高架车站 墩柱 

分 类 号：U212.4[交通运输工程—道路与铁道工程]