Design equations for reinforced concrete members strengthened in shear with external FRP reinforcement formulated in an evolutionary multi-objective framework

Perera Velamazán, Ricardo and Ruiz Perea, Antonio (2012). Design equations for reinforced concrete members strengthened in shear with external FRP reinforcement formulated in an evolutionary multi-objective framework. "Composites Part B: Engineering", v. 43 (n. 2); pp. 488-496. ISSN 1359-8368. https://doi.org/10.1016/j.compositesb.2011.10.013.

Description

Title: Design equations for reinforced concrete members strengthened in shear with external FRP reinforcement formulated in an evolutionary multi-objective framework
Author/s:
  • Perera Velamazán, Ricardo
  • Ruiz Perea, Antonio
Item Type: Article
Título de Revista/Publicación: Composites Part B: Engineering
Date: March 2012
ISSN: 1359-8368
Volume: 43
Subjects:
Freetext Keywords: A. Polymer matrix composites; B. Debonding; C. Computational modelling; Shear strengthening
Faculty: E.T.S.I. Industriales (UPM)
Department: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Methods for predicting the shear capacity of FRP shear strengthened RC beams assume the traditional approach of superimposing the contribution of the FRP reinforcing to the contributions from the reinforcing steel and the concrete. These methods become the basis for most guides for the design of externally bonded FRP systems for strengthening concrete structures. The variations among them come from the way they account for the effect of basic shear design parameters on shear capacity. This paper presents a simple method for defining improved equations to calculate the shear capacity of reinforced concrete beams externally shear strengthened with FRP. For the first time, the equations are obtained in a multiobjective optimization framework solved by using genetic algorithms, resulting from considering simultaneously the experimental results of beams with and without FRP external reinforcement. The performance of the new proposed equations is compared to the predictions with some of the current shear design guidelines for strengthening concrete structures using FRPs. The proposed procedure is also reformulated as a constrained optimization problem to provide more conservative shear predictions.

More information

Item ID: 22653
DC Identifier: http://oa.upm.es/22653/
OAI Identifier: oai:oa.upm.es:22653
DOI: 10.1016/j.compositesb.2011.10.013
Official URL: http://www.sciencedirect.com/science/article/pii/S1359836811004604
Deposited by: Memoria Investigacion
Deposited on: 11 Mar 2014 17:17
Last Modified: 21 Apr 2016 17:38
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