Fatigue life of short-span reinforced concrete railway bridges

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Pimentel, M (Autor) FEUP; Bruhwiler, E (Autor) Outra; Figueiras, J (Autor) FEUP

Revista

Título: Structural Concrete

Vol. 9

Páginas: 215-222

ISSN: 1464-4177

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge

Scopus - 11 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil

Outras Informações

ID Authenticus: P-007-P9G

DOI: 10.1680/stco.2008.9.4.215

Abstract (EN): In this paper a parametric study on the fatigue life of short-span reinforced concrete railway bridges is presented. Only reinforcement steel fatigue damage is considered. The objective of this work is to assess the factors that may have a decisive influence on reinforcement fatigue life, to evaluate the consequences of the increasing traffic loads and to identify the research needs so as to allow more accurate fatigue examinations of existing bridges under more demanding traffic conditions. It is concluded that reinforcement fatigue life is mainly governed by the existence of heavy traffic (freight trains) and that it is highly sensitive both to the axle loads increase and to the accuracy in the reinforcement stress range calculation. It is also shown that the current analysis procedures may suffice for economic design of new bridges, whereas in the case of existing bridges more elaborate analysis procedures may be necessary to prove fatigue safety. © 2008 Thomas Telford and fib.

Idioma: Inglês

Tipo (Avaliação Docente): Científica