| Title |
Characteristics of Bond Behavior According to Confinement and Stiffness Ratios of External Confining Jackets |
| Authors |
최은수(Choi, Eunsoo) ; 정춘성(Jung, Chunsung) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.1.0087 |
| Keywords |
부착강도;구속비;강도비;부착파괴;원주 변형율 Bond strength;Confinement ratio;Stiffness ratio;Bond failure;Circumferential strain |
| Abstract |
Tensile tests were conducted on the GFRP reinforcement exposed to high temperature. The exposure condition for this study was below $200^{\circ}C$ for about 3 minutes. This conditioning is minor compared with that presented in experimental program conducted by other researchers. The residual tensile strength and elastic modulus of GFRP reinforcing bars at high temperature and after exposure to high temperature were compared. In results, tensile properties were decreased at high temperatures, but those after exposure to high temperature were recovered to pre-heating level almost completely. These results could be valuable for evaluating GFRP reinforced structure damaged by fire accident. |