Experimental and Theoretical Analysis on Carrying Capacity and Deflection of Bond-Retarded Prestressed Concrete Continuous Beams

Abstract

Based on the experiments of four bond-retarded prestressed concrete continuous beams, an unbounded prestressed and a bonded prestressed concrete continuous beams, this paper analyzes the ultimate bearing capacity and the deflection of the continuous beams by comparing the theoretical and experimental results, shows that the bond-retarded prestressed beams has the same character with the unbonded prestressed beams when retarding mortar is not hardening; while the bond-retarded prestressed beams has the same character with the bonded prestressed beams when retarding mortar is hardening.