| 摘要 |
PROBLEM TO BE SOLVED: To provide a domy structure which simplifies a connecting structure for connecting an outer shell frame to a foundation. SOLUTION: A position of an arm 12, which is provided on a base connector 6B, is offset from an axial position of a frame member 4; the frame member 4 is positioned along a side surface of the arm 12; and the frame member 4 is joined to the arm 12 in a one-to-one correspondence. A flat plate-like reinforcing flat plate part 13 is welded to an end of a hub 11; a protruding part 13 of the flat plate part 13, which protrudes from a peripheral surface of the hub 11, serves as a flange part 13A; and the end of the arm 12 is welded to both the peripheral surface of the hub 11 and a surface of the flange part 13A. Thus, even if a welded part is reinforced and the frame member 4 is joined to the arm 12 in a one-to-one correspondence, a decrease in the strength of joining the arm 12 and the base connector 6C together can be prevented. This makes the number of the arms 12 reduced without the decrease of the strength of the base connector 6C, so that the connecting structure can be simplified. COPYRIGHT: (C)2008,JPO&INPIT
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