| 摘要 |
PROBLEM TO BE SOLVED: To provide a foundation structure in which strength of a foundation bolt can be improved without changing a joint with a mounting hole of a sump screen.SOLUTION: A foundation structure 18 comprises a support part 19 which is fixed on foundation concrete 8 and includes a screw hole 28a, and a foundation bolt 15 including a first screw part 30 threaded into the screw hole 28a of the support part 19, a second screw part 31 protruding upwardly from the first screw part 30 while reducing the diameter thereof, and a step part 32 formed between the first screw part 30 and the second screw part 31. A supported member 16 is supported by the step parts 32 of the foundation bolt 15. |
