Prediction of bond failure and deflection of carbon fiber-reinforced plastic reinforced concrete beams

2005 ◽  
Vol 45 (1) ◽  
pp. 35-41 ◽  
Author(s):  
A. Maji ◽  
A. L. Orozco
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Bond Failure ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Carbon Fiber Reinforced

Analytical, Numerical and Experimental Examination of Reinforced Composites Beams Covered with Carbon Fiber Reinforced Plastic

2012 ◽  
Vol 42 (1) ◽  
pp. 55-70 ◽  
Author(s):  
A. Kasimzade ◽  
S. Tuhta
Keyword(s):  
Carbon Fiber ◽  
Reinforced Concrete Beams ◽  
Carbon Fiber Reinforced Plastic ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Experimental Examination ◽  
Moment Capacity ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Carbon Fiber Reinforced

Analytical, Numerical and Experimental Examination of Reinforced Composites Beams Covered with Carbon Fiber Reinforced PlasticIn the article, analytical, numerical (Finite Element Method) and experimental investigation results of beam that was strengthened with fiber reinforced plastic-FRP composite has been given as comparative, the effect of FRP wrapping number to the maximum load and moment capacity has been evaluated depending on this results. Carbon FRP qualitative dependences have been occurred between wrapping number and beam load and moment capacity for repair-strengthen the reinforced concrete beams with carbon fiber. Shown possibilities of application traditional known analysis programs, for the analysis of Carbon Fiber Reinforced Plastic (CFRP) strengthened structures.

The Specific Properties Research of RC Beams Multiple Strengthened with Near-Surface Mounted Carbon Fiber Reinforced Plastic Bar and Pre-Stressed Helical Rib Bar

2012 ◽  
Vol 204-208 ◽  
pp. 3068-3073
Author(s):  
Zhen Hua Ren ◽  
Xian Tao Zeng
Keyword(s):  
Carbon Fiber ◽  
Concrete Beams ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Near Surface ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Limit Strength ◽  
Near Surface Mounted ◽  
Carbon Fiber Reinforced

Seven concrete beams were constructed with normal reinforcement bars. Grooves were opened on the concrete cover of the tensile region in the concrete beams using different combinations of carbon fiber reinforced plastic (CFRP) and pre-stressed helical rib bar (HRB), CFRP and HRB pre-stressed at different levels were inserted into the grooves and filled with resin. Flexural experimental results indicated that the limit bearing capacity, rigidity, and crack resistance of the beams were strengthened significantly with near-surface mounted two pre-stressed HRB and one CFRP (BF1P2) bar, or near-surface mounted one pre-stressed HRB and two CFRP (BF2P1) bars, in which HRB was pre-stressed at 30%, 45%, and 60% of its limit strength, respectively. Compared with an un-strengthened beam, the crack loads of the BF1P2 beams increased by 86.70% and 133.33%, the yield loads by 32.25% and 72.04%, and the limit bearing capacities by 72.73% and 90%. The crack loads of the BF2P1 beams increased by 50% and 133.33%, the yield loads by 50.54% and 136.56%, and the limit bearing capacities by 72.20% and 173.60%. The BF1P2 beams had better reinforcing results compared to those of the BF2P1 beams. The beam strengthened with HRB pre-stressed at 45% of its limit strength was the best concrete beam.

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