A numerical approach for local fatigue analysis of bridge details: Analysis of two portuguese case studies

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Silva, ALL (Author) Other; Jesus, AMP (Author) Other; Fernandes, AA (Author) Other

Conference proceedings International

Title: Civil-Comp Proceedings

11th International Conference on Computational Structures Technology, CST 2012

Dubrovnik, 4 September 2012 through 7 September 2012

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ISI Web of Knowledge

Scopus - 0 Citations

Other information

Authenticus ID: P-009-5Q3

Abstract (EN): A numerical approach for the stress analysis concerning the application of the local fatigue approach to representative details from two Portuguese railway bridge details is presented in this paper. Two types of joints are modelled using the finite element method - riveted and welded joints. The first case study consists on a riveted connection from the Trezói Bridge. The boundary conditions applied to the local finite element model of the joint are provided by a global beam finite element model of the bridge. Damage analysis is performed using the Basquin relation. The other case study is the Alcácer do Sal bridge. Three representative welded details are modelled and used to perform a fatigue damage analysis taking into account distinct dynamic train models. For these models, a submodelling process was used to provide the necessary boundary conditions representing several train crossings. Structural stresses are evaluated at welds using a stress-linearization procedure across the thickness. © Civil-Comp Press, 2012.

Language: English

Type (Professor's evaluation): Scientific