| 摘要 |
PROBLEM TO BE SOLVED: To provide a durable and safe strut supporting foundation by providing a foundation body composed of an elastic structure having a flexible structure part at least in one direction in the lower part of the strut. SOLUTION: A foundation body 2 is provided in the lower part of a strut 1. This foundation body 2 is disposed around the lower part of the strut 1, and an elastic body is formed by laminating cloth bodies 4 made of natural fibers, synthetic fibers or metal fibers like an annual ring around the strut 1 in an elastic body 3 made of rubber or a synthetic resin. For installing the strut 1, when the strut 1 receives a force from a specified direction, the installing direction of the foundation body 2 is set such that a low lamination density flexible part 5 is positioned for the strut 1 to be inclined by its force. Thus, by using a foundation body for a strut to be inclined by the load from a certain direction, a durable and safe supporting foundation is provided. |
