土工基础

›› 2018, Vol. 32 ›› Issue (1): 81-83.

• 工程实录 • 上一篇    下一篇

大跨度无柱车站非线性弹塑性分析

马树伟   

  1. （中铁第四勘察设计院集团有限公司城地院，武汉 430063）
  • 收稿日期:2017-10-12 修回日期:2017-11-01 出版日期:2018-02-20 发布日期:2018-03-01
  • 作者简介:马树伟（1986-），男，工程师，研究方向为地铁车站结构设计。

Nonlinear ElastoPlastic Analysis of a Large Span Columnless Subway Station

MA Shuwei   

  1. (Urban Rail & Underground Engineering Design & Research Dept., China Railway Siyuan Survey and Design Group Co. Ltd., Wuhan 430063)
  • Received:2017-10-12 Revised:2017-11-01 Online:2018-02-20 Published:2018-03-01

摘要： 近几年，随着我国城市轨道交通建设迅速发展，国内地铁建设中出现了较多的无柱车站。站台宽度也逐渐增大到11 m以上，需合理地研究结构断面形式和内力分析。利用非线性弹塑性理论，结合有限元软件分析无柱车站的受力状态，真实的反映出构件的应力应变状态，并认识了结构的塑性区域和裂缝状态结果，为结构配筋核算提供了指导作用。针对计算结果，提出了底板设置抗拔桩和顶板起拱两种结构优化处理措施，可为无柱车站设计提供设计借鉴。

关键词: 大跨无柱车站, 结构设计, 裂缝分析, 有限元, 非线性

Abstract: Recently, the columnless subway stations become more and more popular with the development of urban rail transit system. Since the width of the platform in the subway station could be more than 11 meters wide, the crosssection type and stress distributions in the structures need to be investigated. The nonlinear elastoplastic finite element analysis studies were performed for the strcture elements of the subway station. The plastic and cracking zones were identified for the appropriately arranging the steel reinforce bars. Based on the analysis results, the uplift piles were installed at the bottom of the platform and arches were placed at the roof of the subway station.

Key words: large span columnless station, structure design, crack analysis, finite element analysis, nonlinear analysis