Strain of newly – developed composites relationship in flexural tests

Extending service life and preventing demolition of existing structures are the primary goals of structural strengthening and rehabilitation. Fiber-reinforced polymer (FRP) composites have been the most common type of composite in the realm of structural strengthening applications. In recent years,...

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Autores principales:	Hashem Jahangir, Mohammad Reza Esfahani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2018
Materias:	flexural test direct shear test frcm composites section analysis fiber strain Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/6e55fc40a8a54a34927cba13ac5ef787
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spelling	oai:doaj.org-article:6e55fc40a8a54a34927cba13ac5ef7872021-11-08T15:50:58ZStrain of newly – developed composites relationship in flexural tests2476-39772538-261610.22065/jsce.2017.91828.1255https://doaj.org/article/6e55fc40a8a54a34927cba13ac5ef7872018-11-01T00:00:00Zhttps://www.jsce.ir/article_51243_b486e869bc3aedcf357b9217ee733297.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Extending service life and preventing demolition of existing structures are the primary goals of structural strengthening and rehabilitation. Fiber-reinforced polymer (FRP) composites have been the most common type of composite in the realm of structural strengthening applications. In recent years, as a new type of composite, epoxy is replaced by an inorganic matrix, named fiber reinforced cementitious mortar (FRCM), and have attracted a great deal of interest among researchers. Focusing of these kind of novel composites, this paper tries to find a connection between FRCM composites behaviour, as their maximum fiber strain, in flexural and direct shear tests. To achieve this goal, a cross section analysis of previous research works on strengthened RC beams with one layer of composites was conducted and the maximum strain of the fibers was obtained. Calculated fiber strains in flexural strengthening specimens compared with corresponding measured maximum fiber strains in direct shear test specimens. Comparison of results show that the average of maximum fiber strain obtained from flexural specimens is in good agreement with corresponding one measured in direct shear test specimens. Consequently, maximum fiber strains could be designated as the lost link between flexural and direct shear tests as two separated part of a chain.Hashem JahangirMohammad Reza EsfahaniIranian Society of Structrual Engineering (ISSE)articleflexural testdirect shear testfrcm compositessection analysisfiber strainBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 5, Iss شماره ویژه 3, Pp 92-107 (2018)
institution	DOAJ
collection	DOAJ
language	FA
topic	flexural test direct shear test frcm composites section analysis fiber strain Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	flexural test direct shear test frcm composites section analysis fiber strain Bridge engineering TG1-470 Building construction TH1-9745 Hashem Jahangir Mohammad Reza Esfahani Strain of newly – developed composites relationship in flexural tests
description	Extending service life and preventing demolition of existing structures are the primary goals of structural strengthening and rehabilitation. Fiber-reinforced polymer (FRP) composites have been the most common type of composite in the realm of structural strengthening applications. In recent years, as a new type of composite, epoxy is replaced by an inorganic matrix, named fiber reinforced cementitious mortar (FRCM), and have attracted a great deal of interest among researchers. Focusing of these kind of novel composites, this paper tries to find a connection between FRCM composites behaviour, as their maximum fiber strain, in flexural and direct shear tests. To achieve this goal, a cross section analysis of previous research works on strengthened RC beams with one layer of composites was conducted and the maximum strain of the fibers was obtained. Calculated fiber strains in flexural strengthening specimens compared with corresponding measured maximum fiber strains in direct shear test specimens. Comparison of results show that the average of maximum fiber strain obtained from flexural specimens is in good agreement with corresponding one measured in direct shear test specimens. Consequently, maximum fiber strains could be designated as the lost link between flexural and direct shear tests as two separated part of a chain.
format	article
author	Hashem Jahangir Mohammad Reza Esfahani
author_facet	Hashem Jahangir Mohammad Reza Esfahani
author_sort	Hashem Jahangir
title	Strain of newly – developed composites relationship in flexural tests
title_short	Strain of newly – developed composites relationship in flexural tests
title_full	Strain of newly – developed composites relationship in flexural tests
title_fullStr	Strain of newly – developed composites relationship in flexural tests
title_full_unstemmed	Strain of newly – developed composites relationship in flexural tests
title_sort	strain of newly – developed composites relationship in flexural tests
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2018
url	https://doaj.org/article/6e55fc40a8a54a34927cba13ac5ef787
work_keys_str_mv	AT hashemjahangir strainofnewlydevelopedcompositesrelationshipinflexuraltests AT mohammadrezaesfahani strainofnewlydevelopedcompositesrelationshipinflexuraltests
_version_	1718441671875624960

Strain of newly – developed composites relationship in flexural tests

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