| 摘要 |
PROBLEM TO BE SOLVED: To provide a buried substance of concrete and a buried substance attached deck plate capable of damping a component passing through the other side by diffusely reflecting impact and vibration passing through a slab on the surface of a void pipe forming a contracting diameter section (diffuse reflector face). SOLUTION: The void pipe 17 forms the contracting diameter sections 19 at an interval having the same distance as that of an outside diameter of the void pipe in the longitudinal direction, and both ends are closed with a cap 20. The trusses 3 and 3 formed by fixing a lattice reinforcement 8 to vertical reinforcing bars 5, 6 and 7 are parallel arranged on a base plate 1 to make a deck plate 17. The void pipe 17 is placed in a void setting space 15 between the trusses 3 and 3 of the deck plate 14. A void pipe attached deck plate 40 is constituted by fixing the void pipe 17 to the truss 3 by holding a contracting diameter section 19 between a bracket 30 elastically constructed to the lower reinforcing bars 6 and 7 and a holding metal fitting 34 elastically constructed to the upper reinforcing bars 5 and 5 of the truss 3. As well as the conventional deck plate, concrete is placed to form the slab wherein the hollow void pipe 17 is buried. COPYRIGHT: (C)2005,JPO&NCIPI
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