Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete

In masonry buildings, walls are the main structural members that deal with lateral forces. The important point in seismic retrofitting projects is identify the most effective method of improving in various levels of displacement. Therefore, in this study based on laboratory results, 12 reinforced an...

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Autores principales:	Elahesadat Hashemi, Abdolreza Sarvghad Moghadam, Nader Khajeh Ahmad Attari, Seyed Amirhossein Hashemi
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2018
Materias:	unreinforced wall levels of deformation concrete layer network reinforcement shotcrete Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/aea75a106ebf40769827f701b488e707
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spelling	oai:doaj.org-article:aea75a106ebf40769827f701b488e7072021-11-08T15:48:11ZStudy the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete2476-39772538-261610.22065/jsce.2017.69697.1016https://doaj.org/article/aea75a106ebf40769827f701b488e7072018-07-01T00:00:00Zhttps://www.jsce.ir/article_46868_274ec034ace04f545e478422b0fbe78f.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In masonry buildings, walls are the main structural members that deal with lateral forces. The important point in seismic retrofitting projects is identify the most effective method of improving in various levels of displacement. Therefore, in this study based on laboratory results, 12 reinforced and unreinforced walls are subjected to cyclic load, and based on the optimum values for the calibration parameters modeling results with available experimental results, in first step, with change in the specification of reinforced and unreinforced walls, An estimate of the contribution of each component in the improvement of three displacement levels, displacement in the yield point, displacement corresponding to the maximum resistance and the final displacement is made. In the second step, with change in the thickness of the layer masonry materials in unreinforced brick walls and, with change in the thickness of the masonry, concrete, diameter rebar and the distance between the bars, in reinforced brick wall, analytical values are determined. Finally, in the third step the amounts proposed in first step is compared with the amounts extracted in step two that have been derived analytically. In unreinforced walls computing values for the share of masonry materials resistance in three levels of displacement is estimated at around 97%. In reinforced and unreinforced walls the most share in resistance in displacement of the yield point and displacement corresponding to the maximum resistance was for concrete. In the final displacement limit in one way reinforced walls, the most share is for resistance has for masonry material and in two way reinforced walls, the most share is for resistance has for reinforcement. Average computing error of the analytical values obtained from step two in the walls was, about 7.5% is obtained.Elahesadat HashemiAbdolreza Sarvghad MoghadamNader Khajeh Ahmad AttariSeyed Amirhossein HashemiIranian Society of Structrual Engineering (ISSE)articleunreinforced walllevels of deformationconcrete layernetwork reinforcementshotcreteBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 5, Iss 2, Pp 22-39 (2018)
institution	DOAJ
collection	DOAJ
language	FA
topic	unreinforced wall levels of deformation concrete layer network reinforcement shotcrete Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	unreinforced wall levels of deformation concrete layer network reinforcement shotcrete Bridge engineering TG1-470 Building construction TH1-9745 Elahesadat Hashemi Abdolreza Sarvghad Moghadam Nader Khajeh Ahmad Attari Seyed Amirhossein Hashemi Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
description	In masonry buildings, walls are the main structural members that deal with lateral forces. The important point in seismic retrofitting projects is identify the most effective method of improving in various levels of displacement. Therefore, in this study based on laboratory results, 12 reinforced and unreinforced walls are subjected to cyclic load, and based on the optimum values for the calibration parameters modeling results with available experimental results, in first step, with change in the specification of reinforced and unreinforced walls, An estimate of the contribution of each component in the improvement of three displacement levels, displacement in the yield point, displacement corresponding to the maximum resistance and the final displacement is made. In the second step, with change in the thickness of the layer masonry materials in unreinforced brick walls and, with change in the thickness of the masonry, concrete, diameter rebar and the distance between the bars, in reinforced brick wall, analytical values are determined. Finally, in the third step the amounts proposed in first step is compared with the amounts extracted in step two that have been derived analytically. In unreinforced walls computing values for the share of masonry materials resistance in three levels of displacement is estimated at around 97%. In reinforced and unreinforced walls the most share in resistance in displacement of the yield point and displacement corresponding to the maximum resistance was for concrete. In the final displacement limit in one way reinforced walls, the most share is for resistance has for masonry material and in two way reinforced walls, the most share is for resistance has for reinforcement. Average computing error of the analytical values obtained from step two in the walls was, about 7.5% is obtained.
format	article
author	Elahesadat Hashemi Abdolreza Sarvghad Moghadam Nader Khajeh Ahmad Attari Seyed Amirhossein Hashemi
author_facet	Elahesadat Hashemi Abdolreza Sarvghad Moghadam Nader Khajeh Ahmad Attari Seyed Amirhossein Hashemi
author_sort	Elahesadat Hashemi
title	Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
title_short	Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
title_full	Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
title_fullStr	Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
title_full_unstemmed	Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
title_sort	study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2018
url	https://doaj.org/article/aea75a106ebf40769827f701b488e707
work_keys_str_mv	AT elahesadathashemi studytherelativecontributionofmaterialsreinforcementandconcretelayersatdifferentlevelsofcyclicdeformationofmasonrywallsreinforcedwithshotcrete AT abdolrezasarvghadmoghadam studytherelativecontributionofmaterialsreinforcementandconcretelayersatdifferentlevelsofcyclicdeformationofmasonrywallsreinforcedwithshotcrete AT naderkhajehahmadattari studytherelativecontributionofmaterialsreinforcementandconcretelayersatdifferentlevelsofcyclicdeformationofmasonrywallsreinforcedwithshotcrete AT seyedamirhosseinhashemi studytherelativecontributionofmaterialsreinforcementandconcretelayersatdifferentlevelsofcyclicdeformationofmasonrywallsreinforcedwithshotcrete
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Study the relative contribution of materials, reinforcement and concrete layers at different levels of cyclic deformation of masonry walls reinforced with shotcrete

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