STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE

The current experimental investigation is devoted to study the structural capacity of near-surface mounted steel bars strengthened deep beams. Six reinforced SCC deep beam specimens with a dimension of 1400mm x175mm x350mm were tested under Combined Loads of Repeated and Elevated Temperature. The ad...

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Autores principales:	Aula H. Faeq, Ali H. Aziz
Formato:	article
Lenguaje:	AR EN
Publicado:	Mustansiriyah University/College of Engineering 2021
Materias:	deep beam self-compacting concrete nsm elevated temperature repeated load Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/8633ee79ef11423683482177c22ceb34
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spelling	oai:doaj.org-article:8633ee79ef11423683482177c22ceb342021-11-10T10:47:17ZSTRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE10.31272/jeasd.25.6.102520-09172520-0925https://doaj.org/article/8633ee79ef11423683482177c22ceb342021-11-01T00:00:00Zhttps://www.iasj.net/iasj/download/44d5d33d8c22e165https://doaj.org/toc/2520-0917https://doaj.org/toc/2520-0925The current experimental investigation is devoted to study the structural capacity of near-surface mounted steel bars strengthened deep beams. Six reinforced SCC deep beam specimens with a dimension of 1400mm x175mm x350mm were tested under Combined Loads of Repeated and Elevated Temperature. The adopted variable includes the type of loading, degree of elevated temperature, and presence or absence of the strengthening by NSM-steel bars. The experimental results show that the ultimate load of B2-R-T20 decreased by about 33% when the applied load changed from monotonic to repeated; also, when the degree of burning increased to (200oC) and (350oC), the ultimate load decreased by 44% and 65% , respectively. The presence of the strengthened NSM-steel bars leads to increase the lateral strength of the tested beams and arrested the diagonal cracks to be widening as a result, the ultimate load capacity increases by (193%-197%) for the samples exposed to elevated temperature, in comparison with reference beams. The adopted strengthened technique proved to be adequate to restore and increase the shear capacity of the tested beams.Aula H. FaeqAli H. AzizMustansiriyah University/College of Engineeringarticledeep beamself-compacting concretensmelevated temperaturerepeated loadEngineering (General). Civil engineering (General)TA1-2040ARENJournal of Engineering and Sustainable Development, Vol 25, Iss 6, Pp 91-102 (2021)
institution	DOAJ
collection	DOAJ
language	AR EN
topic	deep beam self-compacting concrete nsm elevated temperature repeated load Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	deep beam self-compacting concrete nsm elevated temperature repeated load Engineering (General). Civil engineering (General) TA1-2040 Aula H. Faeq Ali H. Aziz STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE
description	The current experimental investigation is devoted to study the structural capacity of near-surface mounted steel bars strengthened deep beams. Six reinforced SCC deep beam specimens with a dimension of 1400mm x175mm x350mm were tested under Combined Loads of Repeated and Elevated Temperature. The adopted variable includes the type of loading, degree of elevated temperature, and presence or absence of the strengthening by NSM-steel bars. The experimental results show that the ultimate load of B2-R-T20 decreased by about 33% when the applied load changed from monotonic to repeated; also, when the degree of burning increased to (200oC) and (350oC), the ultimate load decreased by 44% and 65% , respectively. The presence of the strengthened NSM-steel bars leads to increase the lateral strength of the tested beams and arrested the diagonal cracks to be widening as a result, the ultimate load capacity increases by (193%-197%) for the samples exposed to elevated temperature, in comparison with reference beams. The adopted strengthened technique proved to be adequate to restore and increase the shear capacity of the tested beams.
format	article
author	Aula H. Faeq Ali H. Aziz
author_facet	Aula H. Faeq Ali H. Aziz
author_sort	Aula H. Faeq
title	STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE
title_short	STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE
title_full	STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE
title_fullStr	STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE
title_full_unstemmed	STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE
title_sort	structural capacity of nsm steel bars strengthened deep beams under combined loads of repeated and elevated temperature
publisher	Mustansiriyah University/College of Engineering
publishDate	2021
url	https://doaj.org/article/8633ee79ef11423683482177c22ceb34
work_keys_str_mv	AT aulahfaeq structuralcapacityofnsmsteelbarsstrengtheneddeepbeamsundercombinedloadsofrepeatedandelevatedtemperature AT alihaziz structuralcapacityofnsmsteelbarsstrengtheneddeepbeamsundercombinedloadsofrepeatedandelevatedtemperature
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STRUCTURAL CAPACITY OF NSM STEEL BARS STRENGTHENED DEEP BEAMS UNDER COMBINED LOADS OF REPEATED AND ELEVATED TEMPERATURE

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