铁道标准设计2018，Vol.62Issue(5)：62-66,5.DOI:10.13238/j.issn.1004-2954.201709290004
极限状态法与容许应力法铁路大跨连续梁设计对比分析
Comparison and Analysis of Limit State Method and Allowable Stress Method for Railway Long-span Continuous Beam
摘要
Abstract
The basic theories of design codes for railway bridges and culverts are converting from the allowable stress method to the limit state method. Based on the limit state method and the allowable stress method for main span 100m continuous beam, such structure control factors as normal section flexural strength,flexural crack resistance and crack resistance of inclined section are analyzed,the applicability of railway bridge and culvert design specifications with limit state method are examined,and revisions of some of the specifications are proposed. The comparison results show that the safety reserves of the two methods are almost the same, and the design with allowable stress method is more conservative. The results of the study may provide certain references for the reformation of the railway codes.关键词
极限状态法/容许应力法/大跨连续梁/对比分析Key words
Limit state method/Allowable stress method/Long-span continuous beam/Comparison and analysis分类
交通工程引用本文复制引用
闫岩..极限状态法与容许应力法铁路大跨连续梁设计对比分析[J].铁道标准设计,2018,62(5):62-66,5.基金项目
中国铁路总公司专项重点项目(J2014C004) （J2014C004）
