A simple finite element to consider the non-linear influence of the ballast on vibrations of railway bridges

被引：39

作者：

Battini, Jean-Marc ^{[1
]}

Ulker-Kaustell, Mahir ^{[1
]}

机构：

[1] KTH, Royal Inst Technol, Dept Civil & Architectural Engn, SE-10044 Stockholm, Sweden

来源：

ENGINEERING STRUCTURES | 2011年 / 33卷 / 09期

关键词：

Railway bridges; Dynamic analyses; Finite elements; Ballast; RIDING COMFORT; TRAINS;

D O I：

10.1016/j.engstruct.2011.05.005

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This article proposes a new and simple finite element which can be used to analyze vertical vibrations in railway bridges. The main feature of the element is that the effect of the ballast is introduced through a non-linear longitudinal stiffness associated to the slip at the interface between the bridge and the ballast. Two numerical applications show that this element can be used to model the variation of the natural frequencies of the bridge as a function of the amplitude of vibration. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2597 / 2602

页数：6

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