Abstract
The shear carrying performance of prestressed concrete girder using external tendons was studied as contrasted with that of girder using internal tendons. As results of static load test of T-section girders, the girders using external tendons showed large shear capacity by remarkable increase of tensile stress in external tendons and the tensile stress in concrete at shear span was restrained. Based on these results, the comparative design for continuous girder bridges was conducted and the factor which improving shear capacity was found in shear span, and was not found at nearby intermediate support. The results revealed that it was conservative that we estimate shear capacity of girder using external tendons following to the design method of girder using internal tendons.
