| 摘要 |
PURPOSE:To mechanically stabilize an anchor bolt-fixing type foundation structure by fixing an anchor bolt with unbonded portion having a certain relationship to the diameter of a foundation RC body to an RC body having a specific cross section coefficient determined by the bending moment and allowable stress of the RC body. CONSTITUTION:The pressure-supporting frame 2 of the column base 1 of a tower-shaped steel structure, e.g., steel tower, etc., is fixed to a foundation RC body 3 by an anchor bolt 7, which is fixed by the length of fixed portion L0 to the body 3. An unbonded portion L1 surrounded by a sheath tube 10 is provided above the bolt 7. The body 3 of a depth of Le and a diameter of R0 is provided with a concentrical axial load bar 4 of a diameter of R1. The anchor bolts 7 are arranged in a concentrical form with a diameter of R2. L1=1/2(R1-R2) and the cross section coefficient Zf of foundation RC body >=bending moment/hoop bar allowable stress are defined. |
