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Type: Journal article
Title: Rigid body moment-rotation mechanism for reinforced concrete beam hinges
Author: Haskett, M.
Oehlers, D.
Mohamed Sadakkathulla, M.
Wu, C.
Citation: Engineering Structures, 2009; 31(5):1032-1041
Publisher: Elsevier Sci Ltd
Issue Date: 2009
ISSN: 0141-0296
Statement of
Matthew Haskett, Deric John Oehlers, M.S. Mohamed Ali and Chengqing Wu
Abstract: Structural engineers have long recognised the importance of the ductility of reinforced concrete members in design, that is the ability of the reinforced concrete member to rotate and consequently: redistribute moments; give prior warning of failure; absorb seismic, blast and impact loads; and control column drift. However, quantifying the rotational behaviour through structural mechanics has been found over a lengthy period of time to be a very complex problem so that empirical solutions have been developed which for a safe design are limited by the bounds of the test parameters from which they were derived. In this paper, a rigid body moment–rotation mechanism is postulated that is based on established shear-friction and partial-interaction research; it is shown to give reasonable correlation with test results as well as incorporating and quantifying the three major limits to rotation of concrete crushing and reinforcing bar fracture and debonding.
Keywords: Reinforced concrete; Beam; Hinge; Rotation; Ductility; Shear-friction; Partial-interaction
RMID: 0020090674
DOI: 10.1016/j.engstruct.2008.12.016
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Appears in Collections:Civil and Environmental Engineering publications

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