麒麟科技创新园快速公共交通工程上跨铁路转体T构空间受力分析

Space Stress Analysis of Overpass Swivel T-frame Structure of Qil in Innovation of Technology Park Rapid Public Traffic Transportation Project

南京麒麟科技创新园现代有轨电车一号线上跨宁芜铁路和仙西联络线,由于路线标高受限,同时考虑到跨铁路施工及运营安全要求较高,采用2×70m转体T构主梁结构,其结构桥型新颖、线形不受控、简洁美观,同时由于其受力复杂,为国内首次采用此类型结构,通过对结构整体与局部的有限元分析,对设计关键因素进行分析,为今后类似工程的设计提供借鉴。

Nanjing science and technology innovation park modern tram line crosses Ning Wu railway and west link. Due to the limited line level, at the same time, considering the high across the railway construction and operation safety requirements, 2 x 70 m T structure girder structure is adopted. The type of the bridge is novel and the linear is not controlled, concise and beautiful. This kind of bridge is technically complicated, therefore, this structure is used in China for the first time. This paper analyzes the key design factors by the finite element analysis of the whole and partial structure and provides a reference for the design of future similar projects.