石济客运专线预应力混凝土槽形梁设计研究

发布时间：2018-03-22 01:25

本文选题：槽形梁　切入点：连续梁　出处：《铁道标准设计》2017年07期 　论文类型：期刊论文

【摘要】：在铁路车站附近,为了减少两端线路路堤高度,降低工程投资,同时能够满足跨越的立交道路及河流防洪要求,可以采用建筑结构较低的下承式桥槽形梁结构形式。以新建石家庄至济南铁路客运专线工程跨越禹王路的工点槽形梁结构为背景,通过有限元软件进行结构分析计算和设计优化,介绍双线铁路槽形梁结构的设计研究分析以及对槽形梁的空间结构计算、空间动力特性及车线桥耦合动力分析,综合考虑槽形梁弯剪扭综合效应以及箱形边主梁截面的空间变形。目前槽形连续梁在高速铁路工程中的应用均较少,缺乏具体的经验和理论公式,解决此技术难题为类似桥梁设计工作提供重要参考。
[Abstract]:Near railway stations, in order to reduce the height of embankments at both ends of the lines, reduce the investment of projects, and meet the requirements of overpass roads and rivers for flood control, It can be used as the structure form of the through type bridge with lower building structure, taking the construction of the new Shijiazhuang to Jinan railway passenger dedicated line project across the Yuwang Road as the background, In this paper, the structure analysis and design optimization are carried out by finite element software, and the design research and analysis of the groove beam structure of double-track railway are introduced. The spatial structure calculation, spatial dynamic characteristics and vehicle-bridge coupling dynamic analysis of the groove beam are introduced. Considering the comprehensive effect of bending, shear and torsion of grooved beam and the spatial deformation of box side main beam section, the application of slot continuous beam in high speed railway engineering is few, and the concrete experience and theoretical formula are lacking. Solving this technical problem provides an important reference for similar bridge design.
【作者单位】：中国铁路设计集团有限公司;
【基金】：铁道第三勘察设计院集团有限公司科研课题(721344)
【分类号】：U442.5

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