Structural Behaviour of Bonded and Unbonded Prestressed Beams-comparative Study

The main aim of this project is to investigate the behaviour of bonded and unbonded for prestressed beams at ultimate limit state by using five several of design in this investigation. These five design procedures are the total strain compatibility procedure, equation by Harajli, equation by Du and Tao, ACI 318-95 code, and BS 8110 code. A simple computer program was developed using FORTRAN 77 to assist in this parametric investigation. Some results of this investigation may require further verification through laboratory experiments. From this study, it was found that the behaviour of the prestressed beams with bonded tendons is better known compared to beams with unbonded tendons. The results also compared with actual test results.