- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
LOAD-DEFLECTION BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH CFRP SHEETS | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 17, Issue 4, 2013, Pages 14-26 | ||
| Authors | ||
| Bayda M. Hameed; Husain Khalaf Jarallah; Mithaq A. Louis | ||
| Abstract | ||
| 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. After the cracking stage with the anticipation of large contribution of tension reinforcement, the beam reinforced with steel of yield stress equal to (460 MPa) shows a difference in deflection with the beam reinforced with steel of yield stress equal to (300 MPa), the increment in the ultimate deflection is (23.8 %). Keywords: Strengthening, Deflection, CFRP sheet, Concrete Beam, Span to Depth ratio. | ||
| Keywords | ||
| Strengthening; deflection; CFRP sheet; Concrete Beam; Span to Depth ratio | ||
|
Statistics Article View: 64 PDF Download: 28 |
||