Experimental study on shear strengthening of steel beams using CFRP strips

Steel structures are one of the most used type of structures. Some of the steel structures may need to be strengthened due to different reasons. There are different methods for strengthening of this kind of structures. In recent years, strengthening of steel structures using Fiber Reinforced Polymer...

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Autores principales:	Kambiz Narmashiri, Mahbobeh Joshang Rigi
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	strengthening steel beam shear bearing capacity cfrp Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/ed99aa2d6ab24189b2811de42587ef4f
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spelling	oai:doaj.org-article:ed99aa2d6ab24189b2811de42587ef4f2021-11-08T15:54:03ZExperimental study on shear strengthening of steel beams using CFRP strips2476-39772538-261610.22065/jsce.2019.136105.1592https://doaj.org/article/ed99aa2d6ab24189b2811de42587ef4f2020-10-01T00:00:00Zhttps://www.jsce.ir/article_81704_c3cf22b05c0e04e33248d1e4fc40496f.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Steel structures are one of the most used type of structures. Some of the steel structures may need to be strengthened due to different reasons. There are different methods for strengthening of this kind of structures. In recent years, strengthening of steel structures using Fiber Reinforced Polymers (FRP) has been most interested. This study investigates the shear strengthening of steel beams using one and both sides strengthening of the web by different angles of Carbon Fiber Reinforced Polymers (CFRP) strips. Five specimens were investigated in laboratory experimentally. The test method was four-point bending approach. The load was applied on a connector loading beam by a hydraulic jack, then the load was applied on the main beam through two equal point loads. The beams had two simple supports at the both ends. The loading type was the static gradual loading type. The dimensions of the beams were chosen in the way that beams behave most in shear. This means that beams fail first due to shear stress. One beam was not strengthened, and two beams were strengthened using vertical strips on one or both sides of the web, and two remained beams were upgraded using diagonal strips. Results of this research indicates efficiency of CFRP strips for increasing load-bearing capacity of the beams. Strengthening using diagonal strips on both sides of the web demonstrated the most increment in load-bearing capacity.Kambiz NarmashiriMahbobeh Joshang RigiIranian Society of Structrual Engineering (ISSE)articlestrengtheningsteel beamshearbearing capacitycfrpBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 3, Pp 203-217 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	strengthening steel beam shear bearing capacity cfrp Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	strengthening steel beam shear bearing capacity cfrp Bridge engineering TG1-470 Building construction TH1-9745 Kambiz Narmashiri Mahbobeh Joshang Rigi Experimental study on shear strengthening of steel beams using CFRP strips
description	Steel structures are one of the most used type of structures. Some of the steel structures may need to be strengthened due to different reasons. There are different methods for strengthening of this kind of structures. In recent years, strengthening of steel structures using Fiber Reinforced Polymers (FRP) has been most interested. This study investigates the shear strengthening of steel beams using one and both sides strengthening of the web by different angles of Carbon Fiber Reinforced Polymers (CFRP) strips. Five specimens were investigated in laboratory experimentally. The test method was four-point bending approach. The load was applied on a connector loading beam by a hydraulic jack, then the load was applied on the main beam through two equal point loads. The beams had two simple supports at the both ends. The loading type was the static gradual loading type. The dimensions of the beams were chosen in the way that beams behave most in shear. This means that beams fail first due to shear stress. One beam was not strengthened, and two beams were strengthened using vertical strips on one or both sides of the web, and two remained beams were upgraded using diagonal strips. Results of this research indicates efficiency of CFRP strips for increasing load-bearing capacity of the beams. Strengthening using diagonal strips on both sides of the web demonstrated the most increment in load-bearing capacity.
format	article
author	Kambiz Narmashiri Mahbobeh Joshang Rigi
author_facet	Kambiz Narmashiri Mahbobeh Joshang Rigi
author_sort	Kambiz Narmashiri
title	Experimental study on shear strengthening of steel beams using CFRP strips
title_short	Experimental study on shear strengthening of steel beams using CFRP strips
title_full	Experimental study on shear strengthening of steel beams using CFRP strips
title_fullStr	Experimental study on shear strengthening of steel beams using CFRP strips
title_full_unstemmed	Experimental study on shear strengthening of steel beams using CFRP strips
title_sort	experimental study on shear strengthening of steel beams using cfrp strips
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/ed99aa2d6ab24189b2811de42587ef4f
work_keys_str_mv	AT kambiznarmashiri experimentalstudyonshearstrengtheningofsteelbeamsusingcfrpstrips AT mahbobehjoshangrigi experimentalstudyonshearstrengtheningofsteelbeamsusingcfrpstrips
_version_	1718441623367450624

Experimental study on shear strengthening of steel beams using CFRP strips

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