Shear Capacity of a RC Bridge Deck Slab: Comparison between Multilevel Assessment and Field Test
Publication: Journal of Structural Engineering
Volume 144, Issue 7
Abstract
For reinforced concrete (RC) slabs without shear reinforcement, shear and punching can be the governing failure mode at the ultimate limit state if subjected to large concentrated loads. Shear and punching of RC slabs without shear reinforcement has been a challenging problem in assessment based on current standards. To examine a previously developed enhanced analysis approach, this study was conducted by applying a multilevel assessment strategy to a 55-year old RC bridge deck slab subjected to concentrated loads near the main girder in a field failure test. This strategy clearly provides the engineering community a framework for using successively improved structural analysis methods for enhanced assessment in a straightforward manner. The differences between analysis methods at different levels of assessment were discussed regarding one-way shear and punching shear behavior of the slab. The influences of parameters, such as boundary conditions, location of concentrated loads, and shear force distribution, were investigated.
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Acknowledgments
The authors would like to acknowledge the financial support from The Swedish Transport Administration (Trafikverket). Also thanks to Luossavaara-Kiirunavaara AB (LKAB) and Hjalmar Lundbom Research Centre (HLRC), which supported the experiment. Furthermore, the authors thank the colleagues in the Swedish Universities of the Built Environment, i.e., Chalmers University of Technology, Royal Institute of Technology (KTH), Lund University (LTH), and Luleå University of Technology (LTU), for the fruitful cooperation in the project.
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Published In
Journal of Structural Engineering
Volume 144 • Issue 7 • July 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Mar 1, 2017
Accepted: Jan 10, 2018
Published online: Apr 30, 2018
Published in print: Jul 1, 2018
Discussion open until: Sep 30, 2018
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