| 摘要 |
PURPOSE: A prestressed girder is provided to maximize effects according to the induction of prestress by increasing eccentricity of a tensile member and a centroid of the girder center. CONSTITUTION: A prestressed girder(100) comprises a concrete member(200), a tension member(300), and a tension member accommodation unit(400). The tension member accommodation unit is installed in the concrete member and comprises an accommodation groove(410) opened to the lower part. The tension member accommodation unit is formed in order to bend the center, and the accommodation groove is arranged in the center of the tension member accommodation unit. The lower surface of the both ends of concrete member is removed in order to include an arc shape and comprises a re-tension anchor unit(500). A steel material is integrally formed with the concrete member. |
