| 要旨 |
In this study, the mechanical performances of RC beam were investigated after they were heated up to different temperatures levels in a loading state, followed by cooling in the air or by water jet. The results show that, the air cooling results in a greater reduction in the ultimate strength of RC beam, as compared to the water jet cooling. The residual deformation and the limit deflection of RC beam increase with raising the heating temperature for any cooling methods, and are smaller when the RC beam is cooled in the air than in case of water jet cooling for a given heating temperature. |