| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pre-stressed concrete pole, which has strength directionality with controlled strength in a direction where less strength suffices, enabling to reduce the costs of the product and the equipment investment.SOLUTION: A pre-stressed concrete pole 1 with strength directionality is configured by arranging a plurality of reinforcement steel bars 9 and 10, which are: placed at designated positions along the circumferential direction in the cross section of a concrete pole main body 2, extending along the longitudinal direction of the concrete pole body 2, in order to introduce compressive forces in the concrete pole main body 2; and positioned so that a first bending strength on a first direction Y at the cross section of the concrete pole main body 2 of the prestressed concrete pole 1 becomes greater than a second bending strength on a second direction X of the prestressed concrete pole 1.</p> |
