| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress occurrence of slipping.SOLUTION: A brace structure is arranged in a construction surface surrounded with a pair of right and left longitudinal structure members and a pair of upper and lower lateral structure members. The brace structure comprises: a first brace pair comprising a first lower brace whose lower edge is arranged at a left lower corner part of the construction surface, and a first upper brace whose upper edge is arranged at a right upper corner part of the construction surface; a second brace pair comprising a second lower brace whose lower edge is arranged at a right lower corner part of the construction surface and a second upper brace whose upper edge is arranged at a left upper corner part of the construction surface; and four side frame member. On the four side frame member, the first lower brace is fastened with a pin at a right upper edge part, the first upper brace is fastened with a pin at a left lower edge part, the second upper brace is fastened with a pin at a right lower edge part, and the second lower brace is fastened with a pin at a left upper edge part. The brace structure is deformed in a manner, when the distance between one pair of the diagonal corner parts on the construction surface is reduced, the upper brace of another diagonal brace pair approaches the corner part at the upper edge side and the lower brace approaches the corner part at the lower edge side.</p> |
