ANCHORAGE DEVICE FOR PRESTRESSING TENDON, AND METHOD FOR REPAIRING EXISTING PRESTRESSED CONCRETE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an anchorage device for a prestressing tendon of an existing prestressed concrete structure, which is structurally simple and excellent in constructibility, and a method for repairing of the existing prestress concrete structure for partially repairing the existing prestressed concrete structure into which a tensioning force is introduced by a post-tensioning system.;SOLUTION: In the intermediate anchorage device 100, anchoring bodies 110 and 120 split in two are pressure-bonded and integrated together by a bolt 140 so that a prestressing steel strand 200 can pass through a formed circular truncated cone-shaped taper hole 130. The intermediate anchorage device 100 intermediately anchors the prestressing steel strand 200 by fitting two wedge members 150 and 160, which are provided with slits 153 and 163, respectively, into a space, between the prestressing steel strand 200 and an inner periphery of the circular truncated cone-shaped taper hole 130, of the circular truncated cone-shaped taper hole 130, through which the prestressing steel strand 200 passes, of the anchoring bodies 110 and 120.;COPYRIGHT: (C)2011,JPO&INPIT