Longitudinal track-bridge interaction due to sudden change of coupling interface

被引：50

作者：

Ruge, P. ^{[1
]}

Widarda, D. R. ^{[1
]}

Schmaelzlin, G. ^{[2
]}

Bagayoko, L. ^{[2
]}

机构：

[1] Tech Univ Dresden, Fak Bauingenieurwesen, Lehrstuhl Dynam Tragwerke, D-01062 Dresden, Germany

[2] Deutsch Bahn AG, DB Syst Tech, D-80634 Munich, Germany

来源：

COMPUTERS & STRUCTURES | 2009年 / 87卷 / 1-2期

关键词：

Nonlinear track-bridge interaction; Coupling interface; Load history; EC-1; DYNAMICS; SCHEME;

D O I：

10.1016/j.compstruc.2008.08.012

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Stresses in continuously welded rails on bridges are strongly influenced by the coupling interface between track and bridge in longitudinal direction. Due to European codes this coupling is characterized by a nonlinear stiffness and by a significant dependence on whether the track is loaded by a train or not. The effect of the sequence 'track unloaded-loaded-unloaded' during the passing of a train onto the rail stresses is studied statically as well as dynamically with paying special attention to deformations from the load history; typically from seasonal temperature-change. This effect can increase the rail compression forces up to 10%. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：47 / 58

页数：12

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