城市立交桥与地铁重叠段地梁设计

Design of Ground Beam in Overlapping Section of Urban Overpass and Subway

随着城市化不断建设与发展,难免出现城市桥梁与地铁线位相冲突的情况。广州市某快速化改造工程部分立交桥与城市已运营地铁线重叠,由于受地铁结构影响所限,需合理设置地梁避让地铁结构以保证桥梁线位通顺。结合项目特点主要介绍工程节点地梁的设计与计算方法,并通过Midas建模分析提出在其过程中的注意事项,以供其他类似情况的工程参考。

With the continuous construction and development of urbanization, it is inevitable that there will be the phase conflicts between urban bridges and subway lines. The partial overpass in a rapid reconstruction project of Guangzhou overlaps with the urban subway under operation. Due to the influence of the subway structure, it is necessary to reasonably set the ground beam to avoid the subway structure in order to ensure the smoothness of the overpass line. Combined with the characteristics of the project, the design and calculation methods of the ground beams in the engineering node are min introduced. The cautions in its process are analyzed and proposed through Midas modeling, which can be referred for the other similar projects.