铁道标准设计2018，Vol.62Issue(3)：49-52,4.DOI:10.13238/j.issn.1004-2954.201706250001
城市轨道交通槽形梁设计参数优化研究
Study on Design Optimization of Urban Rail Transit U-shaped Beam
摘要
Abstract
Taking the urban rail transit U-shaped 30m beam as the research object, this paper uses the finite element method is to study the influence of such U-shaped beam design geometric parameters as beam height, track bed slab thickness and corner slope on its mechanical properties. The calculation results show that the main girder cross section stiffness of U-shaped beam increases with the increase of the beam height,and the best height is 1.8 m in the case of a given 30 m span;the bed slab thickness is associated with the transverse span and the suitable thickness is 0.26 when the transverse span is 4 m;the influence of the corner slope on the U-shaped beam at the junction is mainly demonstrated by mechanical properties,thus,1:(2.5~3.0) is recommended.关键词
城市轨道交通/槽形梁/有限元模型/参数优化/力学性能Key words
Urban rail transit/U-shaped beam/Finite element model/Parameter optimization/Mechanical properties分类
交通工程引用本文复制引用
梁岩,毛瑞敏,李杰,袁会丽..城市轨道交通槽形梁设计参数优化研究[J].铁道标准设计,2018,62(3):49-52,4.基金项目
国家自然科学基金项目(51608488) （51608488）
