铁道标准设计2016，Vol.60Issue(5)：54-58,5.DOI:10.13238/j.issn.1004-2954.2016.05.012
城市快速路跨铁路跨度160 m三主桁钢箱组合梁桥设计
Design of Urban Expressway 160 m Composite Box Steel Girder Bridge with Three Main Trusses over Railway
陈卫华 1李前名 1熊涛1
作者信息
- 1. 中铁武汉勘察设计研究院有限公司，武汉 430074
- 折叠
摘要
Abstract
The project in Wuhan Xiongchu Street is to build a viaduct as part of the urban expressway. The viaduct is located in the throat area of Optics Valley subway station, crossing over the South Central Railway and the southern extension of Metro Line 2. Restricted by plane condition and line profile, the viaduct requires a 160-meter-span across the railway, and the structure height of the bridge deck to the bottom of the beam must be not more than 2. 5 meters. The new 160m composite box steel girder bridge with three main trusses is surrounded by oval cross-braces without oblique braces. The cross-braces are conjoined to the truss by high-tensile bolts. The new bridge beside the railway is installed using the incremental launching method to minimize the disturbance to the existing railway. Midas software is employed to establish whole model with truss beam elements combined with steel box board unit and to conduct static analysis, stability analysis, dynamic analysis and construction analysis. Local structures such as node board details are analyzed with finite element method. The bridge layout and construction method satisfy the boundary conditions, aesthetically pleasing and the calculating indexes.关键词
公路桥/钢桁梁/钢箱梁/组合结构/设计Key words
Highway bridge/Steel truss/Steel box girder/Composite structure/Design分类
交通工程引用本文复制引用
陈卫华,李前名,熊涛..城市快速路跨铁路跨度160 m三主桁钢箱组合梁桥设计[J].铁道标准设计,2016,60(5):54-58,5.
