| 摘要 |
<p>PROBLEM TO BE SOLVED: To inexpensively restrain construction cost, and to also restrain or prevent the occurrence of a crack.SOLUTION: A member 12 having openings 12a is arranged on an iron plate 2. At this time, parts 12A having the openings 12a are arranged in positions separated from the iron plate 2. When placing ready-mixed concrete on the iron plate 2, the placed ready-mixed concrete spreads up to every nook and corner while passing through the openings 12a, and buries the member 12. As a result of it, a crack of the concrete is restrained by the member 12. Since the member 12 is a simple structure, a construction cost can be suppressed to be inexpensive.</p> |
