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

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2014

Autores

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

Ata de Conferência Internacional

Título: Bridge Maintenance, Safety, Management and Life Extension

Páginas: 1580-1587

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

Shanghai, China, 7 to 11 July 2014

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 1 Citação

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia estrutural ; Ciências Tecnológicas > Engenharia > Engenharia civil

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8