Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips
An experimental investigation on initially strengthened and repaired 2-span continuous RC beams with carbon fiber–reinforced polymer (CFRP) strips was conducted. Fourteen full-scale beam specimens were tested using a four-point bending test with a shear span to effective depth ratio ðav=dÞ of 2.5:3....
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| Format: | Article |
| Language: | English |
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American Society of Civil Engineers
2017
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| Online Access: | http://eprints.uthm.edu.my/5222/ http://eprints.uthm.edu.my/5222/1/AJ%202017%20%28356%29%20Shear%20strengthening%20and%20shear%20repair.pdf |
| _version_ | 1848888498145198080 |
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| author | Abdul Samad, Abdul Aziz Ali, Noorwirdawati Mohamad, Noridah Jayaprakash, J. Kong, Fah Tee Mendis, Priyan |
| author_facet | Abdul Samad, Abdul Aziz Ali, Noorwirdawati Mohamad, Noridah Jayaprakash, J. Kong, Fah Tee Mendis, Priyan |
| author_sort | Abdul Samad, Abdul Aziz |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | An experimental investigation on initially strengthened and repaired 2-span continuous RC beams with carbon fiber–reinforced polymer (CFRP) strips was conducted. Fourteen full-scale beam specimens were tested using a four-point bending test with a shear span to effective depth ratio ðav=dÞ of 2.5:3.5. This study presents and discusses several influences on the behavior of strengthened and repaired beams and shear strength prediction: the influence of shear span to effective depth ratio, CFRP contribution to shear, CFRP wrapping schemes, number of layers of CFRP strips, and CFRP orientation angle. At failure, the CFRP strips were observed to rupture and debond along the critical shear crack line of the beam. The shear strength prediction was adopted from the design provisions of the American Concrete Institute (ACI) and was compared with the experimental results. The ACI code model was observed to have underestimated the experimental results from 32 to 44% for Beam Group 1 ðav=d ¼ 2.5Þ, 34 to 44% for Beam Group 2 ðav=d ¼ 2.5Þ, and 14 to 18%for Beam Group 3 ðav=d ¼ 3.5Þ. The findings verify that the ACI code model gave an acceptable conservative prediction of the shear strength capacity of an initially strengthened or repaired 2-span continuous RC beam. DOI: 10.1061/(ASCE)CC.1943-5614.0000756. © 2016 American Society of Civil Engineers. |
| first_indexed | 2025-11-15T20:11:14Z |
| format | Article |
| id | uthm-5222 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:11:14Z |
| publishDate | 2017 |
| publisher | American Society of Civil Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-52222022-01-06T07:20:51Z http://eprints.uthm.edu.my/5222/ Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips Abdul Samad, Abdul Aziz Ali, Noorwirdawati Mohamad, Noridah Jayaprakash, J. Kong, Fah Tee Mendis, Priyan HD9715-9717.5 Construction industry TP1080-1185 Polymers and polymer manufacture An experimental investigation on initially strengthened and repaired 2-span continuous RC beams with carbon fiber–reinforced polymer (CFRP) strips was conducted. Fourteen full-scale beam specimens were tested using a four-point bending test with a shear span to effective depth ratio ðav=dÞ of 2.5:3.5. This study presents and discusses several influences on the behavior of strengthened and repaired beams and shear strength prediction: the influence of shear span to effective depth ratio, CFRP contribution to shear, CFRP wrapping schemes, number of layers of CFRP strips, and CFRP orientation angle. At failure, the CFRP strips were observed to rupture and debond along the critical shear crack line of the beam. The shear strength prediction was adopted from the design provisions of the American Concrete Institute (ACI) and was compared with the experimental results. The ACI code model was observed to have underestimated the experimental results from 32 to 44% for Beam Group 1 ðav=d ¼ 2.5Þ, 34 to 44% for Beam Group 2 ðav=d ¼ 2.5Þ, and 14 to 18%for Beam Group 3 ðav=d ¼ 3.5Þ. The findings verify that the ACI code model gave an acceptable conservative prediction of the shear strength capacity of an initially strengthened or repaired 2-span continuous RC beam. DOI: 10.1061/(ASCE)CC.1943-5614.0000756. © 2016 American Society of Civil Engineers. American Society of Civil Engineers 2017 Article PeerReviewed text en http://eprints.uthm.edu.my/5222/1/AJ%202017%20%28356%29%20Shear%20strengthening%20and%20shear%20repair.pdf Abdul Samad, Abdul Aziz and Ali, Noorwirdawati and Mohamad, Noridah and Jayaprakash, J. and Kong, Fah Tee and Mendis, Priyan (2017) Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips. Journal of Composites for Construction, 21 (3). ISSN 1090-0268 |
| spellingShingle | HD9715-9717.5 Construction industry TP1080-1185 Polymers and polymer manufacture Abdul Samad, Abdul Aziz Ali, Noorwirdawati Mohamad, Noridah Jayaprakash, J. Kong, Fah Tee Mendis, Priyan Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips |
| title | Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips |
| title_full | Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips |
| title_fullStr | Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips |
| title_full_unstemmed | Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips |
| title_short | Shear strengthening and shear repair of 2-span continuous RC beams with CFRP strips |
| title_sort | shear strengthening and shear repair of 2-span continuous rc beams with cfrp strips |
| topic | HD9715-9717.5 Construction industry TP1080-1185 Polymers and polymer manufacture |
| url | http://eprints.uthm.edu.my/5222/ http://eprints.uthm.edu.my/5222/1/AJ%202017%20%28356%29%20Shear%20strengthening%20and%20shear%20repair.pdf |