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Residual static resistance of welded stud shear connectors
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2006 (English)In: Composite Construction in Steel and Concrete V: Proceedings of the 5th International Conference / [ed] Roberto T. Leon; Jorg Lange, American Society of Civil Engineers (ASCE), 2006, 524-533 p.Conference paper (Refereed)
Abstract [en]

Headed studs are widely used in composite bridges to provide longitudinal shear force transfer in the interface between concrete deck and steel beam. There is still no theoretical model available to describe the local failure mechanism and the resistance under the monotonic loading of the stud. The standard design of shear studs assumes that the static resistance is independent of fatigue. A test series on 12.5mm studs published by Oehlers however indicates a linear reduction of the static resistance with the number of cycles. In order to shed more light on this question a test series on 22mm studs was performed, which is the common size in bridges. The residual static resistance of shear studs after cyclic loading was measured using push tests according to Eurocode 4-1-1. The test program consisted of two series of tests. Five static tests were performed for establishing a reference static resistance and five residual strength tests were used to measure residual static resistance after cyclic preloading. In order to give an insight into the local failure mechanism under the monotonic loading a realistic 3D FE analysis of a single stud embedded in the concrete is presented. Results obtained from the FE model are compared with experiments and rather good agreement is obtained.

Place, publisher, year, edition, pages
American Society of Civil Engineers (ASCE), 2006. 524-533 p.
ASCE Conference Proceedings, 186
Research subject
Steel Structures
URN: urn:nbn:se:ltu:diva-35589DOI: 10.1061/40826(186)49Local ID: a2c791b0-8aa0-11db-8975-000ea68e967bOAI: diva2:1008842
Composite Construction in Steel and Concrete : 18/07/2006 - 23/07/2006
Godkänd; 2006; 20061106 (ysko)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Veljkovic, MilanJohansson, Bernt
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