FLOOR STRUCTURE AND FLOOR PANEL FOR USE IN FLOOR STRUCTURE

To provide a floor structure and a floor panel used for the floor structure capable of omitting a beam and ensuring excellent sound insulation in the floor structure used for floor framing of the floor joist less construction method.SOLUTION: Softwood structural plywood 2 to be laid, lined up and fixed across horizontal members F, T is provided with a connecting strip plate 3 fixed by forming an overhang 3a on one side edge approximately parallel to the fiber direction X, a reinforcing strip plate 4 fixed parallel to the connecting strip plate 3 approximately parallel to the fiber direction X, and the softwood structural plywood 2 is laid and fixed across the horizontal members T, F so that the fiber direction X is orthogonal to the length direction of a floor beam F, and adjacent softwood structural plywood 2 along the length direction of the floor beam F is connected and fixed by the overhang 3a of the connecting strip plate 3, and vibration-damping materials 5, 6, and 7 are sandwiched between the softwood structural plywood 2 and horizontal members T, F, between the softwood structural plywood 2 and connecting strip plate 3, and between the softwood structural plywood 2 and reinforcing strip plate 4, respectively.SELECTED DRAWING: Figure 3 【課題】 根太レス工法の床組みに用いられる床構造であって、小梁を省略可能で且つ遮音性に優れた床構造及び該床構造に用いられる床パネルを提供する。【解決手段】 横架材（Ｆ，Ｔ）に架設され敷き並べられて固定される針葉樹構造用合板２は、繊維方向Ｘと略平行な一側縁にはみ出し部３ａを形成して固定された連結用帯板３と、繊維方向Ｘと略平行で連結用帯板２と並列状に固定された補強用帯板４と、を備え、針葉樹構造用合板２は、繊維方向Ｘが、床梁Ｆの長さ方向と略直交するように横架材（Ｔ，Ｆ）に架設されて固定され、床梁Ｆの長さ方向に沿って隣接する針葉樹構造用合板２が連結用帯板３のはみ出し部３ａで連結固定され、針葉樹構造用合板２と横架材（Ｔ，Ｆ）との間、針葉樹構造用合板２と連結用帯板３との間、及び、針葉樹構造用合板２と補強用帯板４と間に、其々、制振材５，６，７が挟持されている。【選択図】 図３