Dynamic Analysis of an Existing Arch Railway Bridge According to Eurocodes

Archives of Civil Engineering

Oleszek R.¹  Radomski W.² 

[1] MSc., Eng., Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, Poland;Prof., DSc., PhD., Eng., Łódź University of Technology, Faculty of Civil Engineering, Department of Geotechnics and Engineering Structures, Al. Politechniki 6, 90-924 Łódź, Poland, e-mail: [e-mail];

关键词: dynamic response;    high-speed trains;    prestressed concrete;    numerical model;    HSLM;    dynamic factor;   

DOI  :  10.1515/ace-2015-0100

来源: DOAJ

【 摘 要 】

Modern regulations concerning railway bridges are based on the approach of structural dynamics, which is described in PN-EN standards. This paper presents the results of theoretical dynamic analysis of the HSLM-A train set loading on the structure of a pre-stressed concrete arch bridge - the first railway bridge of its type which was built in Poland (completed in 1959). The recommendations of PN-EN have been followed and modal analysis was carried out to define the sensitivity of the structure to chosen eigenforms. Additionally the paper presents a course of calculations and the conclusions obtained from the analysis of displacements, accelerations, and bending moments induced in the structure through a simulated passage of a high-speed train in the context of the requirements of PN-EN Standards. The conclusions from the current calculations can be used for dynamic analysis of bridges of similar structural solutions.

【 授权许可】

Unknown