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Type: Journal article
Title: Concrete component of the rotational ductility of reinforced concrete flexural members
Author: Oehlers, D.
Mohamed Sadakkathulla, M.
Griffith, M.
Citation: Advances in Structural Engineering, 2008; 11(3):281-291
Publisher: Multi-science Publishing Co. Ltd.
Issue Date: 2008
ISSN: 1369-4332
Statement of
Oehlers Deric J., Ali M.S. Mohamed and Griffith Michael C
Abstract: Reinforced concrete flexural members inherently rely on member ductility to ensure a safe design by allowing for: redistribution of applied stress resultants; quantification of drift for determining magnified moments; and for the absorption of seismic, blast and impact energy. Structural engineers have recognised that much of the member rotation is concentrated in a small region referred to as the plastic hinge and because of the complexity of the problem this has been quantified mainly through testing. In this paper, a new plastic hinge approach that is based on well established shear-friction theory is postulated. The generic behaviour of this novel shear-friction hinge is shown to agree with that exhibited in tests. Furthermore, the shear-friction hinge explains the mechanics of the benefits of confinement, such as that due to FRP encasement or steel stirrups, on the rotational capacity of RC members.
Keywords: reinforced concrete; concrete; ductility; rotational capacity; shear-friction; plastic hinge; hinge; concrete confinement
RMID: 0020081202
DOI: 10.1260/136943308785082571
Appears in Collections:Civil and Environmental Engineering publications

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