Experimental validation of a non-linear train-track-bridge dynamic model of a stone arch railway bridge under freight traffic

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022-10-11

Autores

Rúben Silva (Autor) Outra; Diogo Ribeiro (Autor) FEUP; Cristina Costa (Autor) Outra; António Arêde (Autor) FEUP; Rui Calçada (Autor) FEUP

Revista

Título: International Journal of Rail Transportation

Páginas: 1-32

ISSN: 2324-8378

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

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

Outras Informações

ID Authenticus: P-00X-ACF

DOI: 10.1080/23248378.2022.2133783

Assunto: Experimental validation of a non-linear train-track- bridge dynamic model of a stone arch railway bridge under freight traffic

Abstract (EN): This article presents the validation of a non-linear FE numerical model of a multi-span stone arch railway bridge based on experimental tests and under in-service freight trains. Static loading tests allow evaluating the bridge response in terms of vertical displacements in the arches, opening/closure deformations on specific block joints of the arches, and vertical compressive stress variations in the piers. The bridge FE model is developed by combining the potentialities of a global continuous homogeneous model, based on FEM and Drucker-Prager model, and a local modelling approach based on a dedicated non-linear contact model. The freight vehicle modelling is based on a flexible FE approach, and the validation of the dynamic behaviour of the train-bridge system involved the comparison between numerical and experimental responses. All the numerical responses are in very good agreement with the experimental responses. Finally, a simulation of the dynamic behaviour of the train-bridge system is performed for realistic scenarios of freight traffic considering speeds between 40 and 140 km/h.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 32