摘要
本文简述中国铁路桥梁标准活载中-活载和欧洲规范规定的UIC71、SW/0、SW/2标准铁路活载及其不同国家修正系数.比较中国规范和欧洲规范关于线路组合系数的不同;比较列车活载与其他荷载在承载能力极限状态和正常使用极限状态荷载组合系数的不同.用Midas Civil软件建立保加利亚一座双线铁路九孔连续刚构桥的全桥模型模拟施工阶段.计算比较该桥分别作用单线中-活载和单线UIC71活载主要截面的竖向位移和弯矩;按中国规范和欧洲规范计算比较该桥承载能力极限状态基本组合关键截面弯矩极值.
Live loads and their proportions in action combinations on the basis of Chinese Railway Codes and Eurocodes are compared in this article.In design of a concrete continuous rigid-framed bridge,mechanic characteristics are analyzed according to these two standards.Based on this article,Chinese bridge design institutions are suggested to use Eurocodes as standard for design and calculation of international projects where Eurocodes are applicative.
作者
唐涛
刘天培
郑凯锋
Tang Tao;Liu Tianpei;Zheng Kaifeng(China Railway Siyuan Survey and Design Group Co.Ltd.,Wuhan Hubei 430063,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China)
出处
《铁道建筑技术》
2018年第A02期92-95,共4页
Railway Construction Technology
关键词
欧洲规范
铁路规范
极限状态法
列车活载
Eurocodes
Chinese railway codes
limit state
traffic live loads
