城轨交通高架桥梁拼接加宽设计探讨

我国城轨交通客流量不断增长,原有的城轨交通基础设施有些己不能满足运能及使用上的要求,需进行设施改造。城轨交通高架桥由于结构本身受力及列车间隔时间短,对其改造难度较大,国内尚无成熟的设计经验可以借鉴。在对上海轨道交通3号线改造工程宝山路站东侧帮梁区加宽设计的基础上,重点探讨城轨交通高架桥梁加宽的可行性及设计施工中应注意的问题,为类似工程提供参考。

Design of Splicing Widening for Elevated Viaduct on Urban Rail Transit

Traffic on China＇s urban rail transit is growing, some existing urban rail transit infrastructures fail to meet operation requirements, and it needs improvement on capacity and equipment. Rehabilitation is difficult since the urban rail viaduct structure undertakes load and trains running at short time intervals. There is no proven design experience. On the basis of design for beam support zone widening on the east side of the Baoshan Station renovation project on Shanghai Rail Transit Line 3, some of the key issues shall be discussed and called attention during the feasibility and design for elevated viaduct widening in construction of urban rail transit, to provide a reference for similar projects.