新成都站槽形格子连续梁设计

Design on Trough Lattice Continuous Girder in New Chengdu Station

大型综合性铁路客运中心站的结构设计一般服从于建筑布局,因而普遍存在站台层结构高度不足导致承轨梁难以设计问题。成都新客站承轨梁充分利用站台面至轨面、以及轨道结构高度,采用槽型格子连续梁,既满足了梁体所需刚度,又降低了站台层结构高度,降低了车站投资。本梁型在成都新客站创新地使用,为我国大型车站建设提供了一种实用、新型的承轨梁型。

The structure design of large- scale comprehensive railway passenger center station generally is done according to the architectural layout, so the general problem is that the height of platform layer structure is insufficient, the design is difficult to support rail girder. For the design of support rail girder in the new Chengdu Passenger Station, the height from platform surface to top of rail as well as the height of track structure is full utilized and the 20. 7 ＋ 24.6 ＋ 20.7 m trough lattice continuous girder is adopted. This not only meets the required rigidity of girder body but also reduces the platform layer structure height, further reduces the investment of station. Such girder type used innovatively in new Chengdu passenger station is for the large-scale station construction in China to provide a type of practical and new support rail girder.