| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology of realizing an inexpensive prestressed-concrete tower-like structure with high economical efficiency, for example, having a height of the order of 10-30 m. <P>SOLUTION: In this prestressed-concrete tower-like structure, a plurality of tiers of ultrahigh-strength mortar segment rings 20, 30, 40 and 50 are provided as anchoring portions for a prestressed tendon at the ends of pieces 70, 80, 90, 100 and 110 of tower boy concrete composed of ordinary concrete. In the pieces 70, 80, 90, 100 and 110 of tower concrete, the plurality of tiers of ultrahigh-strength mortar segment rings 20, 30, 40 and 50 are mounted at the end of a horizontal hollow cylindrical form; the tower body form is fixed by anchoring the prestressed tendon, which passes through the form, to a part of each of the segment rings; concrete is placed in the form; and a surface joined to the segment ring serves as a match cast surface. <P>COPYRIGHT: (C)2009,JPO&INPIT |
