Vibrations in buildings due to railway traffic in tunnels: Modelling strategies and influence of soil stiffness

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2015

Autores

Lopes, P (Autor) Outra; Alves Costa, P (Autor) Outra; Rui Calçada (Autor) FEUP; Cardoso, A (Autor) Outra

Ata de Conferência Internacional

Título: COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering

Páginas: 108-119

5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015

25 May 2015 through 27 May 2015

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00G-NX1

Abstract (EN): In this paper a numerical study about the influence of soil stiffness on the assessment of vibrations induced by railway traffic in tunnels is performed. A comprehensive numerical model is used to achieve the lumped objective, where the source of vibration (traintrack interaction), the propagation of vibrations (tunnel-ground system) and their reception (building close to the railway infrastructure) are simulated by a sub-structuring approach. It was found that the soil stiffness plays a relevant role on the mechanisms of propagation of vibrations through the ground as well as on the soil-structure interaction. Regarding the last topic, different approaches were attended for the inclusion of the SSI effects, namely a detailed boundary elements formulation and a simplified lumped-parameter model. The study performed revealed that the usage of lumped parameter models can be faced as a good option taking into account the compromise between accuracy of the solution and reduction of the computation effort.

Idioma: Inglês

Tipo (Avaliação Docente): Científica