| Title |
Flexural Strengthening Effect of Reinforced Concrete Beams Strengthened with CFRP Plate |
| Authors |
Lee Chang-Mi ; Lee Hong-Ro ; Kwon Woo-Hyun ; Kim Woo-Suk ; Baek Seung-Min ; Kwak Yoon-Keun |
| Keywords |
CFRP Plate ; CFRP Sheet ; Preloading ; Strengthened Length |
| Abstract |
This paper deals with the flexural strengthening effect of reinforced concrete beams strengthened with CFRP Plate(Carbon Fiber Reinforced Polymer Plate). Ten strengthened RC beams (including control beam) were experimentally evaluated to determine improvements in flexural strength. Test parameters in this experimental study are strengthening types(B, U, E Type), steel ratio(=0.0096, =0.015), preloading, an interval of stirrup (@100, @300) and strengthened length of CFRP Plate (2064mm, 2580mm). RC beams strengthened with CFRP Plate were tested under the combined control of load. Considering strengthening types and strengthening methods of CFRP Plate, flexural capacity and failure mode of test specimens were evaluated. The results show that flexural capacity of beams strengthened with CFRP Plate is about 21%～117% in all strengthening parameters higher than that of control beam. Additionally, experimental results are compared with theoretical results available in the literatures and good agreement is observed. |