| Popis: |
In this study, in order to investigate flexural load-carrying capacity of reinforced RC beams with pretensioned FRP sheet and debonding behavior of the sheet, static four-point loading test for flexural reinforced RC beams with bonding pretensioned AFRP sheet were conducted by taking parameters of with/without pretension force and sheet volume. Also, an applicability of the prediction equation for failure mode on those beams was investigated by using this and existing experimental data which was developed for flexural reinforced RC beams with normal FRP sheet. From this study, following results were obtained: 1) introducing the pretensioning force to AFRP sheet, sheet debonding due to peeling action can be more restrained; and 2) prediction formula of failure mode for reinforced RC beams with normal AFRP sheet can be used for those with pretensioned AFRP sheet. |
