Load-Deflection Behavior of Reinforced Concrete Beams Strengthened with CFRP Sheets
In this study experimental investigation of the deflection control of R.C. beams strengthened using continuous Carbon Fiber Reinforced Polymer (CFRP) sheets is carried out. The test results show that the strengthening with (CFRP) sheet has a significant effect on the load-deflection response by inc...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Arabic |
| Published: |
Mustansiriyah University/College of Engineering
2013-10-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/970 |
| Summary: | In this study experimental investigation of the deflection control of R.C. beams strengthened using continuous Carbon Fiber Reinforced Polymer (CFRP) sheets is carried out. The test results show that the strengthening with (CFRP) sheet has a significant effect on the load-deflection response by increasing beam stiffness especially beyond the precracking stage. By using (CFRP), the maximum deflection is decreased by (26.7%) in comparison with control beam. The effect of Span to depth ratio has also an important role in the control of deflection. The reduction of (Span/Depth) ratio from (20) to (15, 12.5 and 10) will reduce the maximum deflection by (21%, 30.3% and 41.6%) respectively. The test results show the load-deflection response has not been affected significantly by increasing the steel reinforcement ratio at the pre-cracking stage. However, this behavior is dramatically changed at the cracking stage, by increasing steel reinforcement ratio of (2×ρmin) and (ρmax) as compared with (ρmin), the maximum deflection is reduced by (13.5% and 29.2%) respectively. Also the load-deflection response is not affected by the grade of steel reinforcement at the cracking stage.
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| ISSN: | 2520-0917 2520-0925 |