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AuthorPinto, Alexandre
AuthorCosta, Pedro Alves
AuthorColaço, Aires
AuthorLopes, Patrícia
AuthorHussein, Mohammed
Available date2020-08-25T10:28:20Z
Publication Date2017
Publication NameCOMPDYN 2017 - Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
ResourceScopus
URIhttp://dx.doi.org/10.7712/120117.5542.17483
URIhttp://hdl.handle.net/10576/15769
AbstractModern cities require efficient mass transportation systems like subway and railway networks. Due to the lack of available space and also due to environmental concerns, it is usually preferable to use the underground space to construct such kind of infrastructures. In this context, several railway lines run in trench cross-sections in urbanized regions. This option permits to save space, allowing reducing the distance between railway lines and existing buildings. Due to that reduced distance, nearby buildings are exposed to relevant levels of vibrations that can annoys their inhabitants. In the present paper a numerical investigation about the dynamic aspects related with wave propagation due to railway traffic in trench cross-sections is presented. For that purpose, a 2.5D FEM-PML formulation is adopted for the simulation of the main system (track-retaining structure-ground), while the rolling stock is simulated by a multi-body approach. A reference scenario is previously presented, being followed by a parametric study where the influence of the geotechnical properties of the ground was analyzed.
SponsorThis work was financially supported by: Project POCI-01-0145-FEDER-007457 - CONSTRUCT - Institute of R&D in Structures and Construction funded by FEDER funds through COMPETE2020 - Programa Operacional Competitividade e Internacionaliza??o (POCI) - and by national funds through FCT - Fundacao para a Ciencia e a Tecnologia: Project PTDC/ECM-COM/1364/2014 and Individual Grant SFRH/BD/101044/2014.
Languageen
PublisherNational Technical University of Athens
Subject2.5D FEM-PML
Ground-borne vibrations
Numerical study
Railway engineering
Trench-cross section
TitleGround-borne vibrations due to railway traffic in urbanized areas: A numerical study about traffic in trench cross-sections
TypeConference Paper
Pagination1982-1993
Volume Number1
dc.accessType Open Access


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