温州某公轨共建高架车站结构设计

作者：吕尚文

单位：上海市政工程设计研究总院集团)有限公司

摘要：为了解决城市廊道资源的紧张和公共交通发展需求的矛盾，出现了轨道交通和快速路的共建型式，即公轨共建的复合型交通模式，以温州市域铁路S2线一期工程的人民路站为例，研究公轨共建高架车站的结构设计要点。首先，为降低浅层气体对桩基的承载力及沉降影响，对遇到局部浅层气体发育的基础设计提供了合理的解决方案。然后针对公轨共建一体化车站分别进行了多遇和罕遇地震作用分析，研究表明构件及整体指标满足规范要求。最后针对工程的一些关键技术，如快速路桥面体系的选型、超长结构温度应力的控制措施、轨道梁挠度及应力的控制、快速路桥面振动对车站的影响等进行了分析，并给出了具体的解决方案和指导意见。

关键词：公轨共建高架车站；浅层气；建桥合一；墩顶位移；轨道梁；温度应力

作者简介：吕尚文，硕士，高级工程师，一级注册结构工程师、注册土木工程师(岩土),主要从事轨道交通结构设计，Email:lvshangwen@smedi.com。
基金： -页码-：24-29，35

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Structural design of a public rail co-construction elevated station in Wenzhou

LÜ Shangwen

(Shanghai Municipal Engineering Design Institute (Group) Co.,Ltd.)

Abstract: In order to solve the contradiction between shortage of urban corridor resources and development needs of public transportation, that is a composite transportation mode constructed by public rail. Taking the Renmin Road Station on the S2 Line of Wenzhou Municipal Railway as an example, the main points of the structural design of the public rail co-construction station were studied. First of all, in order to reduce the impact of shallow gas on the bearing capacity and settlement of the pile foundation, a reasonable solution for the foundation design that encounters local shallow gas development was provided. Then, an analysis of the effects of frequent and rare earthquakes was carried out for the public and rail co-construction integrated stations, and the research showed that the components and the overall indicators meet the requirements of the code. Finally, some technologies of the project were analyzed, such as the selection of the expressway bridge deck system, the control measures for the temperature stress of the super-long structure, the deflection and stress control of the track beam, the influence of the expressway bridge deck vibration on the station, etc. Specific solutions and guidance were given.

Keywords: public rail co-construction elevated station; shallow gas; integration of bridge construction; pier top displacement; track beam; temperature stress

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