Precasttype anchorage segment structures for building PSC(prestressed concrete) box girder bridge

摘要

PSC box girder bridge construction precast type fixing unit segment structured body according to the present invention, PSC box after the construction of the respective cast-in-place segments in the construction of a girder bridge, as being joined construction to that side surface of each cast-in-place segments, substantially whole has a structure in the form of hexahedron, and forming through-holes for the insertion of the PC steel materials for the introduction prestressing predetermined part of the body, one end of the through-hole is for persistence after prestressing the introduction of the PC steel material inserted into the through hole there is characterized in that the anchorage in the buried features.; Thus, according as the present invention, in more than three days, the air release required for concrete curing period in a conventional manner if so produced at the site (plant) by the pre-pre-cast method, the construction of PSC box girder bridge using this 2 It can be shortened to less than one, the parts by fixing the precast screen can be further improved workability advantage that for the prestress introduced.