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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| Format: | Article |
| Language: | fas |
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Iranian Society of Structrual Engineering (ISSE)
2020-10-01
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| Series: | Journal of Structural and Construction Engineering |
| Subjects: | |
| Online Access: | https://www.jsce.ir/article_81704_c3cf22b05c0e04e33248d1e4fc40496f.pdf |
| _version_ | 1819015297579876352 |
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| author | Kambiz Narmashiri Mahbobeh Joshang Rigi |
| author_facet | Kambiz Narmashiri Mahbobeh Joshang Rigi |
| author_sort | Kambiz Narmashiri |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-21T02:29:30Z |
| format | Article |
| id | doaj.art-ed99aa2d6ab24189b2811de42587ef4f |
| institution | Directory Open Access Journal |
| issn | 2476-3977 2538-2616 |
| language | fas |
| last_indexed | 2024-12-21T02:29:30Z |
| publishDate | 2020-10-01 |
| publisher | Iranian Society of Structrual Engineering (ISSE) |
| record_format | Article |
| series | Journal of Structural and Construction Engineering |
| spelling | doaj.art-ed99aa2d6ab24189b2811de42587ef4f2022-12-21T19:18:58ZfasIranian Society of Structrual Engineering (ISSE)Journal of Structural and Construction Engineering2476-39772538-26162020-10-017شماره ویژه 320321710.22065/jsce.2019.136105.159281704Experimental study on shear strengthening of steel beams using CFRP stripsKambiz Narmashiri0Mahbobeh Joshang Rigi1Assistant Professor of Structural Engineering, Department of Civil Engineering, Faculty of Engineering, Zahedan Branch, Islamic Azad University, Zahedan, IranDepartment of Civil Engineering, Zahedan Branch, Zahedan, IranSteel 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.https://www.jsce.ir/article_81704_c3cf22b05c0e04e33248d1e4fc40496f.pdfstrengtheningsteel beamshearbearing capacitycfrp |
| spellingShingle | Kambiz Narmashiri Mahbobeh Joshang Rigi Experimental study on shear strengthening of steel beams using CFRP strips Journal of Structural and Construction Engineering strengthening steel beam shear bearing capacity cfrp |
| title | 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_short | Experimental study on shear strengthening of steel beams using CFRP strips |
| title_sort | experimental study on shear strengthening of steel beams using cfrp strips |
| topic | strengthening steel beam shear bearing capacity cfrp |
| url | https://www.jsce.ir/article_81704_c3cf22b05c0e04e33248d1e4fc40496f.pdf |
| work_keys_str_mv | AT kambiznarmashiri experimentalstudyonshearstrengtheningofsteelbeamsusingcfrpstrips AT mahbobehjoshangrigi experimentalstudyonshearstrengtheningofsteelbeamsusingcfrpstrips |