Author(s): Silva, Rúben ; Costa, Cristina ; Arêde, António ; Calçada, Rui ; Oliveira, Daniel V.
Date: 2019
Persistent ID: http://hdl.handle.net/1822/66442
Origin: RepositóriUM - Universidade do Minho
Project/scholarship: info:eu-repo/grantAgreement/FCT/COMPETE/126959/PT;
Subject(s): Constitutive material parameters; FE numerical modelling; Load-carrying capacity; Railway bridges
This paper reports on the modelling strategies used to represent the structural behaviour of a masonry single-arch railway bridge. The bridge structural behaviour is simulated by a 3D finite element model, in which the different bridge components are represented by homogeneous materials. The material nonlinear behaviour is simulated using a Drucker-Prager model. The assigned material properties are based on material testing, performed in similar stone masonry structures. The load-carrying capacity is evaluated using a 3D Ansys model and with a RING model of the bridge under incremental static loading representing normal railway traffic with appropriate configurations on the bridge deck, and the results compared.
Part of this work reports to research financially supported by Project POCI-01-0145-FEDER-007457—CONSTRUCT, Institute of R&D in Structures and Construction, funded by FEDER funds through COMPETE2020 and by national funds through Fundação para a Ciência e a Tecnologia (FCT). It also includes research supported by the FCT project PTDC/ECM-EST_1691/2012 – Experimental and Numerical Characterization of Structural Behaviour of Stone Masonry Arch Bridges under Railway Traffic Loading, Application to Existing Portuguese Bridges and by FCT PhD programme PD/BD/127812/2016 (iRail).
