| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a prestressed concrete construction method that hardly cause a problem in performance and appearance and allows reducing a construction period and a weight of a whole PC structure. <P>SOLUTION: A construction method of a prestressed concrete structure that is strained in a vertical direction comprises: vertically burying a sheath pipe 15, whose bent part is formed by a polyethylene pipe 17 at least and the whole body is formed of resin, when concrete is installed; inserting an unbonded PC steel stranded wire 1, which is applied with rust inhibitor 3, rust-inhibiting wax, as a tendon into the sheath pipe and imparting tensioning force to the tendon at the upper and lower ends or either end of the sheath pipe; and grouting cement 25 and 26 inside of the sheath pipe near the upper and lower ends. <P>COPYRIGHT: (C)2012,JPO&INPIT |
