Introduction

The subject of Track-Bridge Interaction has become particularly important with respect to longer span bridges and viaducts supporting tracks, especially for those carrying high speed trains. However, investigations which have been undertaken in order to address that specific issue have raised points which are relevant to all types of railway bridge. Consequently, the content of this Technical Report is intended to be applicable to all types of railway bridge, for both ballasted and ballastless track, and for all types of railway (e.g. conventional railways, metro and light rail systems, and high speed railways).

It is also clear that the increased availability of computational methods of analysis, since the basis for existing codes was laid down in the 1990s, has made it possible to consider approaches to calculation of Track-Bridge Interaction effects which could not be expected to be used in routine procedures in the past.

There are three principal 'outputs' set out in the final sections of this Technical Report. They are as follows:

1) Guidance for designers and maintainers of railway track and structures to assist them in adopting current best practice in taking Track-Bridge Interaction effects into account (Clause 12 of this report).
2) Recommendations for future development of standards, especially the revision of the relevant section of the Eurocode EN 1991‑2:2003 6.5.4 (Clause 13 and Annex E of this report).
3) Identification of areas in which new research and development is needed to make further improvements in approaches to Track-Bridge Interaction (Clause 14 of this report).

PD CEN/TR 17231:2018

Eurocode 1: Actions on Structures. Traffic Loads on Bridges. Track-Bridge Interaction

Current

Published:

31 Aug 2018