Due to the simple design and construction, along with the cheap cost of maintenance and repair, the prestressed concrete (PSC) I-type girders are widely used in superstructures of bridges. But the traditional PSC I-type girders are restricted in size w hen applied in long span bridges. In Korea, PSC I-type girders are only applied in short and medium span briges. However, using the concept of incremental prestressing, long span PSC I-type girder can be used without increasing the height of the girder. In this study, bending test of incrementally prestressed concrete (IPC) girder is performed to prove the validity of design concept and to find out structural behavior of IPC girder. Two full scale specimens (bracket type and coupler tyupe), with span length of 30m, are designed, manufactured and tested up to failure. During the test, strains of reinforcing steel and concrete and deflections are measured. Cracks are also marked during the test.
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