PRESTRESSED CONCRETE GIRDER

摘要

The present invention relates to a prestressed concrete girder which applies post-tension by arranging a second girder segment member and a third girder segment member on both ends of a first girder segment member to which a pre-tension is applied, and then makes a post-tension steel wire member penetrate through the second girder segment member, the first girder segment member, and the third girder segment member in a longitudinal direction thereof; thereby applying greater post-tension to all thereof in a state of not tensioning but compressing an upper end of a center of the girder by prestress such that the length and the weight of the girder is able to be reduced, and the girder with a long span of 60 m or more is able to practically be manufactured.