高速铁路连续箱梁支座纵向预偏量理论数值精确计算研究

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DOI：10.19981/j.CN23-1581/G3.2026.12.038

中图分类号：U279

文献标志码： A

文章编号：2095-2945（2026）12-0152-04

Abstract： The high-speed intercity railway crosses the Urban area， spans roads and rivers， and has many continuous box girder structures. Continuous box girder bearings require high installation accuracy and difficult control. Among them， there is no detailed description in design reference documents or specifications for the calculation of bearing pre-deflection， and there is a high possibility of errors during the actual calculation process. This paper conducts sufficient and detailed research and analysis on the theoretical numerical accurate calculation of the bearing pre-deflection of continuous box girder of high-speed railway， and forms a concise and accurate algorithm， which can be used as reference for subsequent projects.

Keywords： railway continuous box girder; preload; accurate calculation; support installation; engineering application

城际高速铁路串联沿线多个城市，线路穿越经济发达的城市建成区，路网密布、河流交叉，普通24 m、32 m简支箱梁无法跨越，设计时一般采用大跨连续箱梁结构。（剩余4982字）