Computational Technology Resources - CCC

R. Silva¹, D. Ribeiro², C. Costa³ and A. Arede¹

¹CONSTRUCT-LESE, Faculty of Engineering, University of Porto, Portugal
²CONSTRUCT-LESE, School of Engineering, Polytechnic of Porto, Portugal
³CONSTRUCT – LESE, Department of Engineering, Polytechnic of Tomar, Portugal

doi:10.4203/ccc.7.15.5

R. Silva, D. Ribeiro, C. Costa, A. Arede, "Validation of the Nonlinear Numerical Model of a Stone Masonry Bridge Under Railway Traffic", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 15.5, 2024, doi:10.4203/ccc.7.15.5

Keywords: railway masonry bridges, train-bridge dynamic interaction, nonlinear dynamic analysis, experimental testing, model validation, finite element numerical model.

Abstract

This paper presents the validation of a nonlinear finite element 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 and opening/closure deformations on specific block joints of the arches while dynamic tests involved measuring accelerations in the bridge deck. The nonlinear bridge finite element model is developed by combining the potentialities of a global continuous model, based on Drucker-Prager model, and a local modelling approach based on a dedicated contact model. This contact model allows reproducing the behaviour of the joints between the masonry blocks, including the cracking patterns identified in some arches derived from an inspection campaign. The dynamic analyses are based on advanced train-bridge dynamic interaction model, including the measured track irregularities. All the numerical responses are in very good agreement with the experimental responses.

download the full-text of this paper (PDF, 10 pages, 1041 Kb)

go to the previous paper
go to the next paper
return to the table of contents
return to the volume description

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 15.5 Validation of the Nonlinear Numerical Model of a Stone Masonry Bridge Under Railway Traffic R. Silva¹, D. Ribeiro², C. Costa³ and A. Arede¹ ¹CONSTRUCT-LESE, Faculty of Engineering, University of Porto, Portugal ²CONSTRUCT-LESE, School of Engineering, Polytechnic of Porto, Portugal ³CONSTRUCT – LESE, Department of Engineering, Polytechnic of Tomar, Portugal doi:10.4203/ccc.7.15.5 Full Bibliographic Reference for this paper R. Silva, D. Ribeiro, C. Costa, A. Arede, "Validation of the Nonlinear Numerical Model of a Stone Masonry Bridge Under Railway Traffic", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 15.5, 2024, doi:10.4203/ccc.7.15.5 Keywords: railway masonry bridges, train-bridge dynamic interaction, nonlinear dynamic analysis, experimental testing, model validation, finite element numerical model. Abstract This paper presents the validation of a nonlinear finite element 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 and opening/closure deformations on specific block joints of the arches while dynamic tests involved measuring accelerations in the bridge deck. The nonlinear bridge finite element model is developed by combining the potentialities of a global continuous model, based on Drucker-Prager model, and a local modelling approach based on a dedicated contact model. This contact model allows reproducing the behaviour of the joints between the masonry blocks, including the cracking patterns identified in some arches derived from an inspection campaign. The dynamic analyses are based on advanced train-bridge dynamic interaction model, including the measured track irregularities. All the numerical responses are in very good agreement with the experimental responses. download the full-text of this paper (PDF, 10 pages, 1041 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
Back to top	©Civil-Comp Limited 2023 - terms & conditions