Dual Directional Prestressed Tendon Anchoring Apparatus Precast Concrete Box Culvert Using the Same Assembling Structure in Precast Concrete Box Culvert

摘要

The present invention uses a bidirectional prestressed steel wire fixing device having a structure that can fix the steel wires in both directions instead of one direction when the steel wire is tensioned and settled in order to apply prestressing force to the culvert when assembling the prefabricated concrete box culvert. It relates to a prefabricated concrete box culvert prefabricated by the tensioned steel wire is settled, and the assembled structure of the prefabricated concrete box culvert.;In the present invention, a hollow coupling member, a pair of wedge cone members detachably coupled to both ends of the coupling member and having a cone-shaped wedge hole formed at the center thereof, and an end of a steel wire, Wedges are inserted into each of the wedge holes and provided with wedges to fix the steel wires, while the steel wires are fixed in both directions. A prefabricated precast concrete box culvert is provided.;In addition, the present invention provides an assembly structure of a prefabricated precast concrete box culvert that continuously assembles the box culvert by installing the bidirectional steel wire fixing device at the joint section of the prefabricated precast concrete box culvert and fixing tension wires on both sides. .;According to the present invention, it is possible to minimize the loss of prestress force caused by slip when the steel wire is fixed, which is a problem of the box culvert assembled using a conventional one-way steel wire fixing device, the assembly of prefabricated concrete box culvert At the same time, the box culvert has a strong binding force and is reliably coupled, minimizing waste of wire material and preventing breakage of the culvert.