Probabilistic assessment of the train running safety on a short-span high-speed railway bridge

• Type: Article in International Scientific Journal
• Date: 2016

Authors

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

Journal

Title: Structure and Infrastructure Engineering

Vol. 12

Pages: 78-92

ISSN: 1573-2479

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 35 Citations

ISI Web of Science

Scopus - 42 Citations

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-00G-T65

DOI: 10.1080/15732479.2014.995106

Abstract (EN): In this work the running safety of high-speed trains on a short-span bridge is assessed. A probabilistic approach that combines Monte Carlo simulation with the extreme value theory is used and the existence of track irregularities is taken into account along with the variability of parameters related to the bridge, the track and the train. As case study, a 12m span filler beam bridge was selected as the train-bridge interaction effects are most significant for short spans. The running safety is assessed for the case of loss of contact between the wheel and the rail, taking into consideration only the vertical wheel-rail interaction and assuming that no lateral forces act on the train. This research enables the characterisation of the wheel unloading coefficient, the identification of the critical wheel and also the definition of the maximum allowable speed for trains to run safely on the bridge.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15