BIM正向设计在地铁站结构设计中的应用探讨

以一个地铁标准站的结构设计为例,详细介绍在地铁设计项目中的BIM正向设计应用,分析BIM正向设计在项目的方案及初设阶段、施工图阶段的具体应用点。综合来看,BIM正向设计在该地铁项目中发挥了重要作用,提高了设计效率、减少了工作量,并促进了各专业间的协同工作,为项目的顺利进行提供了有力支持。

地铁站主体结构设计及其技术要点

结合某地铁站主体结构设计实际,对地铁车站结构设计的主要计算与分析过程及其技术要点进行了探讨,并就该地铁站主体结构施工采用的拱盖法暗挖法进行了总结。

浅谈地铁站主体结构剪力墙施工技术及质量控制

随着社会的发展,地铁作为近年来新兴的交通运输方式,受到广大社会人士的青睐。地铁站主体结构主要采用钢筋混凝土框架结构,其施工质量是后续地铁运行的基础,而地铁施工过程中,剪力墙施工质量将直接影响工程使用安全及施工造价。本文通过对地铁主体结构剪力墙施工技术的分析,进而使其在质量上得到有效的控制,希望地铁主体结构剪力墙施工得到有效的质量控制和优化。

地铁站建筑结构设计中的地下空间利用与地下城市规划

本文旨在探讨地铁站建筑结构设计中的地下空间利用与地下城市规划问题。首先,将介绍地下空间利用的重要性以及地下城市规划的背景和现状。其次,分析目前地铁站建筑结构设计存在的问题,并提出解决问题的办法。最后,总结本文的主要观点和结论。

双层岛式地铁站站厅全尺寸烟气温度传播规律研究

为研究典型地下双层岛式结构地铁站站厅火灾状况下烟气温度变化规律,以南昌地铁3号线为例,分别运用PyroSim数值模拟软件和热烟测试,研究典型地下双层岛式结构地铁站站厅火灾发生6 min时间段内站厅烟气沉降时间、温度变化规律。结果表明:火灾发生6 min前,高温烟气层沉降高度主要在3.5 m及以上,烟气未沉降至能威胁人员的高度;站厅两端出入口数量不同,导致烟气呈现非对称扩散,出入口补风效果越好,烟气凝聚越少,温度越低;靠近送风口区域与附近区域相比,温度普遍较低。研究结果可为典型地下双层岛式结构地铁站站厅火灾温度传播规律研究提供参考。

长沙地铁3号线某车站结构设计与分析

结合长沙地铁3号线某地铁车站的结构设计实践，本文重点就地铁车站结构设计荷载选取、内力分析及配筋方法、大体积钢筋混凝土防裂设计、防水设计等方面进行了探讨，可供同行参考。

建筑钢结构网壳体系在现代高架桥车站中的应用——实例分析新加坡大士西线地铁某换乘站

钢结构建筑是一个错综复杂的系统工程,其中钢结构网壳体系以其特有的美观三维造型、优化的结构比重,从众多现代钢结构车站的设计中脱颖而出,在越来越备受各方重视和好评际遇的同时,也给高空作业下的高精度钢结构安装带来很大的挑战,除对施工困难性及复杂性深刻认知、施工方案的周密及详细的系统组织之外,实战经验中不断调整和累积的施工经验将更贴近实际需求,本文以笔者对新加坡大士西线高架桥地铁某换乘站中异形曲面钢结构网壳桁架体系解析并通过对施工实例的仿真计算验证,形成对网壳钢结构建筑体系及现代车站施工变形控制的要点进行归纳,为类似工程积累有益经验。

Dynamic analysis of subway station subjected to internal blast loading

The study was motivated by the fact that explosion inside the subway structure may not only cause direct life loss,but also damage the subway structure and lead to further loss of lives and properties.The propagation law of explosion wave in the subway station was analyzed and a simplified model of overpressure in the subway station was also proposed.Whereafter,the improved dynamic cam-clay model of soil and the concrete damaged plasticity constitutive model were used for the dynamic analysis of the subway station.Meanwhile,the influences of soil stiffness and burial depth on the dynamic response of the subway station were looked into.The results show that the multi-peak overpressure in the subway station does not appear,and large stresses concentrate on the central column and the floor slab of the subway station,so some special reinforcement measures should be taken in these parts.The effect of soil stiffness and burial depth on the stress of the central column is little;however,the effect on the stress of the station side wall is relatively obvious.

The Use of Underground Metro Stations and Tunnels as Protective Structures in Case of Nuclear Emergencies

This paper discusses the use of Underground Metro stations and tunnels as protective structures in case of nuclear emergencies. Six lines are taken as a case study to investigate the use of their underground stations and tunnels. The research explains the structural design of Underground Metro and the necessary needs for hidden people inside Underground Metro used as shelters. The research investigates the calculations of the number of hidden persons inside Underground Metro used as shelters. A field study has been conducted to an Underground Metro station to detemaine the peaceful use and the emergency use of all basements of the station. Also, the field study aims to determine the existing spaces and the needed spaces of the Underground Metro station to dual--used as a nuclear shelter. Three Underground Metro stations have been selected and a field study has been conducted to determine the usages of these basements, the planning, general and design features for each one of them, and whether they can be used as protective structures for citizens in emergencies. These basements were compared for their protective factors. Also, their capacities for sheltering were calculated.