New Model for Evaluation of FRP Debonding Strain for Russian Design Code

The most probable failure mode of FRP-strengthened RC beams is an intermediate crack-induced debonding. Over the last 13 years, researchers developed several methods for calculation strain corresponding to delamination of FRP. A significant number and diversity of existing foreign and domestic metho...

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Main Authors: Anton Alekseevich Bykov, Aleksandr Vasilyevich Kalugin
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2013/130162
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spelling doaj-859307e9ec304135bb7d2e549727315d2020-11-25T00:02:48ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/130162130162New Model for Evaluation of FRP Debonding Strain for Russian Design CodeAnton Alekseevich Bykov0Aleksandr Vasilyevich Kalugin1Department of Building Constructions, Perm National Research Polytechnic University, Komsomol Prospect, Perm 29614990, RussiaDepartment of Building Constructions, Perm National Research Polytechnic University, Komsomol Prospect, Perm 29614990, RussiaThe most probable failure mode of FRP-strengthened RC beams is an intermediate crack-induced debonding. Over the last 13 years, researchers developed several methods for calculation strain corresponding to delamination of FRP. A significant number and diversity of existing foreign and domestic methods make the design complex process. The aim of this study was to propose a simple method for calculating FRP debonding strains, based on the best international achievements and adapted for use in Russia. To achieve this goal, the authors performed a review and reliability assessment of existing foreign and domestic meth-ods. Reliability assessment is made by comparing the calculated and experimental data. Experimental data were collected from the existing literature. After reliability assessment, the most simple and accurate method was selected among the considered. On the basis of the chosen method, the authors proposed a formula for calculating the design value and characteristic value strain corresponding to delamination of FRP. The results of calculations by the authors’ formula are more economical than the original method and have the required reliability for these variables. The proposed method is recommended for use in the design of flexural FRP-strengthened RC beams in Russia.http://dx.doi.org/10.1155/2013/130162
collection DOAJ
language English
format Article
sources DOAJ
author Anton Alekseevich Bykov
Aleksandr Vasilyevich Kalugin
spellingShingle Anton Alekseevich Bykov
Aleksandr Vasilyevich Kalugin
New Model for Evaluation of FRP Debonding Strain for Russian Design Code
Advances in Materials Science and Engineering
author_facet Anton Alekseevich Bykov
Aleksandr Vasilyevich Kalugin
author_sort Anton Alekseevich Bykov
title New Model for Evaluation of FRP Debonding Strain for Russian Design Code
title_short New Model for Evaluation of FRP Debonding Strain for Russian Design Code
title_full New Model for Evaluation of FRP Debonding Strain for Russian Design Code
title_fullStr New Model for Evaluation of FRP Debonding Strain for Russian Design Code
title_full_unstemmed New Model for Evaluation of FRP Debonding Strain for Russian Design Code
title_sort new model for evaluation of frp debonding strain for russian design code
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2013-01-01
description The most probable failure mode of FRP-strengthened RC beams is an intermediate crack-induced debonding. Over the last 13 years, researchers developed several methods for calculation strain corresponding to delamination of FRP. A significant number and diversity of existing foreign and domestic methods make the design complex process. The aim of this study was to propose a simple method for calculating FRP debonding strains, based on the best international achievements and adapted for use in Russia. To achieve this goal, the authors performed a review and reliability assessment of existing foreign and domestic meth-ods. Reliability assessment is made by comparing the calculated and experimental data. Experimental data were collected from the existing literature. After reliability assessment, the most simple and accurate method was selected among the considered. On the basis of the chosen method, the authors proposed a formula for calculating the design value and characteristic value strain corresponding to delamination of FRP. The results of calculations by the authors’ formula are more economical than the original method and have the required reliability for these variables. The proposed method is recommended for use in the design of flexural FRP-strengthened RC beams in Russia.
url http://dx.doi.org/10.1155/2013/130162
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