Slide structure, support structure and seismically isolated structure

1. A slide structure comprising a first member and a second member provided opposite to each other, wherein

the slide structure is provided between a foundation and an upper structure,

the second member is fixed to the foundation,

the first member is fixed to a laminated rubber support section which is provided on the upper structure,

the first member is slidably provided along a surface of the second member,

the first member includes a holding section fixed to the laminated rubber support section and a sliding body held on an underside of the holding section,

the holding section is formed with a concave cross-section opening downward, and the sliding body is fixed to the concave portion,

in said first member, a first sliding surface that slidingly contacts with said second member is formed on a lower surface of the sliding body and is made from a synthetic resin material having a predetermined Young's modulus,

in said second member, a second sliding surface that slidingly contacts with said first sliding surface is made from an elastic body having a Young's modulus more than twice as large as the Young's modulus of said first sliding surface, and is formed with irregularities with a maximum height (Rz) of 3 μm or more and equal to or less than 70 μm, and a lubricant is applied to the second sliding surface, such that the lubricant fills the irregularities.

2. A slide structure according to claim 1 , wherein said first sliding surface is made from a self-lubricating synthetic resin material.

3. A slide structure according to claim 1 , wherein said second sliding surface is made from a synthetic resin material having a thickness equal to or larger than 40 μm and equal to or less than 70 μm.

4. A support device comprising a slide structure according to claim 1 , wherein the first sliding surface of said first member and the second sliding surface of said second member are respectively formed by a flat surface.

5. A support device comprising a slide structure according to claim 1 , wherein the first and second sliding surfaces are formed of a curved surface such that the first sliding surface of said first member has a convex curvature, and the second sliding surface of said second member has a concave curvature.

6. A support device comprising a slide structure according to claim 1 , wherein the first and second sliding surfaces are formed of a curved surface such that the first sliding surface of said first member has a concave curvature, and the second sliding surface of said second member has a convex curvature.

7. A support device according to claim 4 , wherein the laminated rubber support section is serially connected with said first member.

8. A seismically isolated structure wherein a load from the upper structure is supported by the support device according to claim 4 .

9. A support device according to claim 5 , wherein the laminated rubber support section is serially connected with said first member.

10. A support device according to claim 6 , wherein the laminated rubber device support section is serially connected with said first member.

11. A seismically isolated structure wherein a load from the upper structure is supported by the support device according to claim 5 .

12. A seismically isolated structure wherein a load from the upper structure is supported by the support device according to claim 6 .

13. A slide structure according to claim 1 , wherein the Young's modulus of said first sliding surface is in a range of from 400 MPa to 800 MPa.