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|Title:||Concrete component of the rotational ductility of reinforced concrete flexural members|
Mohamed Sadakkathulla, M.
|Citation:||Advances in Structural Engineering, 2008; 11(3):281-291|
|Publisher:||Multi-science Publishing Co. Ltd.|
|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|
|Appears in Collections:||Civil and Environmental Engineering publications|
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