四线铁路连续梁空心薄壁刚架主墩设计-《高速铁路技术》

文章信息/Info

Title:: Design of Hollow Thin-wall Rigid Frame Main Pier of Bridge with Continuous Beams on Four-line Railway

Author(s):: LIU Bin; China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

Keywords:: hollow thin-wall rigid frame pier|four-line railway|continuous beam|additional force of track

摘要:: 文章以玉磨铁路立新寨四线特大桥为例，介绍了山区铁路车站内四线连续梁主墩采用双柱空心薄壁刚架墩的设计，并针对连续梁主墩与桥上轨道附加及桥梁动力特性等进行了分析探讨。论述了山区地形、车站布置、地质情况及桥上轨道附加力对桥梁结构静动力性能的影响，总结出针对四线铁路连续梁空心薄壁刚架墩的设计与计算方法，有效地降低了多线连续梁高墩的建造成本，为山区多线铁路大跨度连续梁下部结构的设计与计算提供了可借鉴的经验。

Abstract:: Taking Lixinzhai four-line super major bridge of YuMo Railway as an example, this paper introduces the design of double-column hollow thin-wall rigid frame of main pier of four-line bridge with continuous beams in mountainous railway station, and analyzes and discusses the main pier of the continuous beam, the additional force of track on the bridge and the dynamic characteristics of the bridge. This paper discusses the influence of mountainous terrain, station layout, geology and additional force of track on the static and dynamic performance of the bridge structure, summarizes design and calculation methods for hollow thin-walled frame piers bridge with continuous beam on four-line railway, which effectively reduces the construction cost of multi-line continuous beam high piers, and provides the experience for design and calculation of substructure of multi-line long-span continuous beam.