Efficient methodology for the safety assessment of a short span railway bridge under high-speed traffic

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

João Rocha (Author) FEUP; António Abel Henriques (Author) FEUP; Rui Calçada (Author) FEUP

Conference proceedings International

Title: Bridge Maintenance, Safety, Management and Life Extension

Pages: 1580-1587

IABMAS 2014 - Bridge Maintenance, Safety, Management and Life Extension

Shanghai, China, 7 to 11 July 2014

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

COMPENDEX

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering ; Technological sciences > Engineering > Civil engineering

Other information

Authenticus ID: P-009-T84

DOI: 10.1201/b17063-242

Abstract (EN): A probabilistic methodology for the safety assessment of short span railway bridges for high-speed traffic is presented. The purpose is to create a simple, efficient and automatic procedure that allows identifying the critical train speeds over the bridge and assessing the safety of the train-bridge system. The methodology combines simulation techniques with the extreme value theory in order to minimize the required computational time. Stochastic simulation is employed as it allows reflecting the real variability of the parameters that characterize the dynamic response of the train-bridge system. The safety of a short span filler beam railway bridge crossed by a TGV double train is assessed as case study. The variability of the bridge, the track and the train was accounted for, as well as the existence of track irregularities. The proposed probabilistic methodology proved to be efficient as it allowed identifying the critical train speeds with a reduced computational cost.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8