| 摘要 |
<p>PURPOSE:To dispense with reinforcing a concrete body and sufficiently absorb angular displacement of a ring support by forming bolt holes on a spring plate and a bottom plate, and forming the bore of bolt hole of the spring plate so as to be larger than the diameter of the bolt. CONSTITUTION:A circular arc likely upward formed spring part 10A is formed on the center part of a spring plate 10, and contacted with the underside of a bottom plate 8. Reaction applied on a concrete building body 3 for fixing a ring support by dead weight of a piping A or uneven force applied on the bending part of the piping A, is reduced by deformation of the spring part 10A. Bolt holes are formed on the spring plate 10 and the bottom plate 8, and the bore of a bolt hole 10B formed on the spring plate 10 is larger than the diameter of a bolt 9 to allow deformation of the spring plate 10. By this constitution, reaction applied on a concrete body 3 for fixing a ring support due to the dead weight of the piping A or the uneven force applied on the bending part of the piping A, is reduced by deformation of the spring part 10A of the spring plate 10.</p> |
