| 摘要 |
PURPOSE: A protecting holder of a steel wire for a prestressed concrete girder is provided to increase the safety and the lifetime of a bridge by effectually stretching a steel wire and effectually reinforcing the girder. CONSTITUTION: A protecting holder of a steel wire for a prestressed concrete girder comprises a pair of covered steel wire holes(1), and a plurality of uncovered steel wire holes(2). A pair of covered steel wire holes are formed at the both sides of the central part with regular length. A covered steel wire is inserted into the covered steel wire holes. A plurality of uncovered steel wire holes are formed at the outside of the covered steel wire hole. An uncovered steel wire is inserted into the uncovered steel wire holes. The uncovered steel wire hole is connected to the outside of the both ends. |
