| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a one-column and one-pile foundation structure capable of maintaining its function without a drastic decrease in strength of concrete, even in the case of action of an excessive pull-out force. <P>SOLUTION: A one-column and one-pile foundation structure comprises a pile 11, a joint unit 12 having a cavity C for housing filling concrete 14, and a column base 13 in which a joint area including a base plate 131 is joined to the pile 11 via the filling concrete 14. A displacement prevention body 122 overhanging inward is provided in a predetermined position in the height direction of the joint unit 12. The displacement prevention body 122 is provided above a position T in which a virtual straight line L elongated in a direction of an elevation angle of 45° from a horizontal end of the base plate 131 crosses an inner wall of a unit body 121. Additionally, an area An of the displacement prevention body 122 is formed so as to satisfy the inequality, Pn>Ps, where Pn represents concrete bearing strength exerted by the displacement prevention body 122 and Ps represents cone-type failure strength of the whole filling concrete 14. <P>COPYRIGHT: (C)2012,JPO&INPIT |
