BUILDING FLOOR MATERIAL AND BUILDING FLOOR STRUCTURE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a building floor material preventing the leakage of a sound from a clearance formed between structural materials such as a beam and a girder and a clearance between a plurality of floor materials, and to provide a building floor structure using the same. SOLUTION: This building floor structure 14 comprises an aluminum alloy extrusion section 1, its whole cross section is formed into an approximate rectangle, a plurality of hollow parts 6 are formed along the extrusion direction and the hollow parts 6 are filled with damping materials 12 outward projecting from end faces 8 and 9 of the extrusion section 1. COPYRIGHT: (C)2004,JPO&NCIPI