Impact study of cable-stayed railway bridges with random rail irregularities

被引：124

作者：

Au, FTK ^{[1
]}

Wang, JJ

Cheung, YK

机构：

[1] Univ Hong Kong, Dept Civil Engn, Hong Kong, Peoples R China

[2] Hunan Univ, Coll Civil Engn, Changsha 410082, Peoples R China

来源：

ENGINEERING STRUCTURES | 2002年 / 24卷 / 05期

关键词：

cable-stayed bridges; finite element method; impact; numerical generation; railway loading; random rail irregularities;

D O I：

10.1016/S0141-0296(01)00119-5

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper describes a study of the vibration of cable-stayed bridges under moving railway trains. The moving train comprises a number of cars, each of which is modelled as a four-axle system possessing 10 degrees of freedom. The cable-stayed bridge is modelled as a planar system. As the rail irregularities are random in nature, sample profiles to model them are generated using a suitable power spectral density function of rail roughness. The behaviour of such a vehicle-bridge interaction problem is investigated using a typical cable-stayed bridge, The aspects studied include the effects of number of random samples, damping, class of railway track quality and initial motion of train vehicles. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：529 / 541

页数：13

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