A Parametrical Analysis for the Rotational Ductility of Reinforced Concrete Beams
Domenico Raffaele, Giuseppina Uva, Francesco Porco, Andrea Fiore*
Identifiers and Pagination:Year: 2013
First Page: 242
Last Page: 253
Publisher Id: TOCIEJ-7-242
Article History:Received Date: 13/5/2013
Revision Received Date: 30/7/2013
Acceptance Date: 28/8/2013
Electronic publication date: 29/11/2013
Collection year: 2013
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The assessment of the plastic rotation of reinforced concrete beams is an essential aspect to avoid structural brittle collapses. The value actually available can be generally determined as sum of two different components. The first, due to bending, the second for inclined shear cracks. This paper presents a simplified model which provides the flexural plastic rotation of the rectangular beams with a ``closed-form solution''. The approach is substantially dimensionless and includes main influencing factors the cross -section, as mechanical material properties, ductility, geometrical and mechanical reinforcement ratio, confinement effects. In closing, in order to appreciate the reliability of the procedure, a comparison with models proposed by international technical standards is made.