JP3725703B2

JP3725703B2 - Floor structure and unit building

Info

Publication number: JP3725703B2
Application number: JP21289598A
Authority: JP
Inventors: 貴弘有我
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 1998-07-28
Filing date: 1998-07-28
Publication date: 2005-12-14
Anticipated expiration: 2018-07-28
Also published as: JP2000045445A

Description

【０００１】
【発明の属する技術分野】
この発明は遮音性能のよい床構造に関する。特に、ユニット建物に好適な床構造に関する。
【０００２】
【従来の技術】
従来、上階の床の上を歩いたり床の上に物を落下させると、床が振動し、この振動によって発生する音が下階に響いて、下階に居る人の迷惑になっていた。かかることを防ぐために従来種々な床構造が知られている。例えば、実開昭５８−１２３１１１号公報や実開昭和５８−１７４５１６号公報には、床の構造材の下面に垂直面を有する取付金具が取り付けられ、天井野縁の上面にも垂直面を有する取付金具が取り付けられ、この床側の取付金具の垂直面と天井野縁側の取付金具の垂直面との間に弾性防振材を挟んで両方の取付金具が連結されて、天井野縁が床の構造材に取り付けられている床構造が記載されている。
【０００３】
一方、ユニット建物を構成する建物ユニットの床構造としては、図７に示す床と天井とからなる構造が知られている。即ち、建物ユニットの床の骨格は、側縁部に桁側床大梁１０２，１０２が配置されると共に、この床大梁１０２，１０２間にほぼ等間隔で床小梁１０３，・・・が複数配設され、この床小梁１０３と床大梁１０２の間や床小梁１０３と隣の床小梁１０３の間に垂直連結材１０４が取り付けられているものである。このように床大梁１０２や床小梁１０３からなる梁部材がほぼ平行になっていて、このほぼ平行な梁部材に垂直連結材１０４が差し渡されて取り付けられている。そして、この梁部材の上面に床材１０１が取り付けられて床が構成されている。
【０００４】
そして、この床構造では、床大梁１０２や床小梁１０３等の梁部材の下端部のほぼ垂直な側面に根太継ぎ１０５が取り付けられ、この根太継ぎ１０５の上に水平連結板１０６が架け渡され、この水平連結板１０６に天井野縁受け材１０７を介して天井野縁１０８が取り付けられ、この天井野縁１０８の下面に天井材１０９が取り付けられて下階の天井が梁部材に取り付けられている。このように、このユニット建物の床構造では、梁部材１０２，１０３に直接天井野縁１０８を取り付けずに、水平連結板１０６，野縁受け材１０７を介して取り付けることにより、床材の振動が直接天井材に伝わらないようになっている。
【０００５】
【発明が解決しようとする課題】
しかしながら、このユニット建物の床構造では、軽量床衝撃音は、床大梁１０２や床小梁１０３等の床梁部材と根太継ぎ１０５との連結部や、根太継ぎ１０５と野縁受け材１０７との連結部を伝播する際に大きく減少するが、更なる減少が求められている。また、この水平連結板１０６と野縁受け材１０７とを介して取り付ける床構造では、ほぼ平行な梁部材の間に手を入れて野縁受け材１０７を取り付けたり、この野縁受け材に水平連結板１０６を取り付ける必要があり、極めて施工し難い。
【０００６】
一方、上記公報記載の床構造では構造材の下面に弾性防振材を介して天井が取り付けられているので、重量床衝撃音の伝達を防ぐことができるし、軽量床衝撃音の伝達も防ぐことができ、良好な床構造である。そこで、上記公報記載のように、建物ユニットの床の構造材である梁部材の下面に垂直面を有する取付金具を取り付け、天井野縁の上面にも垂直面を有する取付金具を取り付け、この床梁部材の取付金具の垂直面と天井野縁の垂直面との間に弾性防振材を挟んで、両方の取付金具を連結することを試みたが、床材と天井材との距離が大きくなってユニット建物に適しないことが判明した。
【０００７】
即ち、ユニット建物は、ユニット建物を構成する建物ユニットを工場等で製造し、施工現場に運搬し、施工現場で組み立てるものである。このように建物ユニットを工場から施工現場まで運搬するために、この建物ユニットの高さは道路交通法によって制限されている。一方、建物の居住性をよくするために床と天井との間の距離は大きい方がよい。従って、通常の建物ユニットでは、床材と下階の天井材との間の距離をできるだけ小さくして居住性をよくしている。従って、床と下階の天井との間に上記公報記載の床構造を設けるだけの隙間がなく、上記公報記載の床構造を採用することができない。
【０００８】
そこで、この発明の目的は、軽量床衝撃音に対しても、衝撃音が下階に伝播し難く、しかも、床材と下階の天井材との距離を従来とほぼ同じにすることのできる床構造を提供することである。
【０００９】
【課題を解決するための手段】
本発明は上記目的を達成するためになしたものであって、請求項１記載の発明は、一対の床大梁と，この一対の床大梁間にこれとほぼ平行に且つ等間隔に配設された複数の床小梁と，この前記床大梁及び床小梁の上面に取り付けられた床材とからなる床と、天井野縁とこの天井野縁の下面に取り付けられた天井材とからなる下階の天井とからなる床構造であって、前記床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、前記垂直連結板の下面の高さが前記床大梁の下面より前記天井野縁の高さだけ高い位置に設けられ、この垂直連結板のほぼ垂直な側面と前記天井野縁との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられている床構造としたことを特徴とする。
【００１０】
請求項２記載の発明は、一対の床大梁と，この一対の床大梁間にこれとほぼ平行に且つ等間隔に配設された複数の床小梁と，この前記床大梁及び床小梁の上面に取り付けられた床材とからなる床と、天井野縁とこの天井野縁の下面に取り付けられた天井材とからなる下階の天井とからなる床構造であって、前記床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、前記垂直連結板の下面の高さが前記床大梁の下面より前記天井野縁の高さだけ高い位置に設けられ、前記天井野縁に天井野縁側連結金具の天井野縁側取付部が取り付けられ、この天井野縁に取り付けられた天井野縁側連結金具の垂直片と垂直連結板のほぼ垂直な側面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられている床構造としたことを特徴とする。
【００１１】
この請求項２記載の発明においては、天井野縁に取り付けられた天井野縁側連結金具の垂直片と垂直連結板のほぼ垂直な側面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているが、かかる構造にするには、垂直連結板のほぼ垂直な側面に直接弾性防振材を当接させ、この弾性防振材を挟んで天井野縁側連結金具の垂直片を垂直連結板に取り付けてもよいし、垂直連結板のほぼ垂直な側面に平板状の連結金具を取り付け、この平板状の垂直連結板側連結金具の側面に弾性防振材を当接させ、この弾性防振材と平板状の垂直連結板側連結金具とを挟んで天井野縁側連結金具の垂直片を垂直連結板に取り付けてもよい。また、この天井野縁側連結金具は、天井野縁側取付部となる水平片と垂直片とでＬ字形に形成されたものであると構造が簡単でよい。
【００１２】
請求項３記載の発明は、一対の床大梁と，この一対の床大梁間にこれとほぼ平行に且つ等間隔に配設された複数の床小梁と，この前記床大梁及び床小梁の上面に取り付けられた床材とからなる床と、天井野縁とこの天井野縁の下面に取り付けられた天井材とからなる下階の天井とからなる床構造であって、前記床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、前記垂直連結板の下面の高さが前記床大梁の下面より前記天井野縁の高さだけ高い位置に設けられ、この垂直連結板のほぼ垂直な側面に垂直連結板側連結金具の垂直片が取り付けられ、前記天井野縁に天井野縁側連結金具の天井野縁側取付部が取り付けられ、垂直連結板に取り付けられた垂直連結板側連結金具の水平片の上面と天井野縁に取り付けられた天井野縁側連結金具の上側水平片の下面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられている床構造としたことを特徴とする。
【００１３】
天井野縁側連結金具は、天井の縁側取付部である下側水平片と上側水平片と垂直板部とでＺ字形に形成されたものであると構造が簡単でよい。又、垂直連結板側連結金具は垂直片と水平片とでＬ字形に形成されたものであると構造が簡単でよい。
【００１４】
この請求項１〜請求項３記載の発明における梁部材とは、床大梁、床小梁等の床の構造材をいう。また、請求項１〜請求項３記載の発明に使用する弾性防振材とはゴムや軟質剛性樹脂の如き弾性を有するものであって、この弾性防振材を挟んで天井野縁が垂直連結板に取り付けられていると、垂直連結板が振動しても、弾性防振材がこの振動を吸収して天井野縁が殆ど振動しなくするものである。
【００１５】
この弾性防振材は上下振動をよく吸収させるためには、上下方向（請求項２記載の発明では剪断方向、請求項３記載の発明では圧縮方向）のバネ定数が低いほど効果が大きい。しかし、このバネ定数を低くすると天井が撓み易くなるので、天井が撓まない程度のバネ定数を有するものがよい。例えば、１０ｋｇ程度の照明を吊り下げたときの天井撓みを１ｍｍ以下にするためには、このバネ定数は１００ｋｇｆ／ｃｍ以上にする必要がある。なお、１ｋｇｆ／ｃｍは９．８０６６５Ｎ／ｃｍである。
【００１６】
このバネ定数（請求項２記載の発明では剪断バネ定数（静的特性）であり、請求項３記載の発明では圧縮バネ定数）を１００ｋｇｆ／ｃｍ程度にすると、防振効果（バネ定数（動的特性））は、両方とも１５０ｋｇｆ／ｃｍ程度になり、極めて良好な防振作用を奏する。
【００１７】
なお、一般的に剪断方向のバネ定数は圧縮方向のバネ定数の１／４〜１／７であるから、本発明における弾性防振材を取り付けた床構造では、同じバネ定数の弾性防振材を使用する場合には、水平方向の振動に対する防振効果は、請求項３記載の発明が請求項２記載の発明の１／１６〜１／５０となる。従って、ほぼ同じバネ定数を有する弾性防振材を使用したときには、水平方向の振動を吸収する性能は、請求項３記載の発明の方が優れている。
【００１８】
請求項４記載の発明は、請求項１〜請求項３のいずれかに記載の床構造に係り、前記天井野縁が断面矩形状の長尺体の野縁受け材と断面矩形状の長尺体の野縁材とからなり、断面矩形状の長辺を垂直にした野縁受け材の下面に野縁材が、野縁材の断面矩形状の長辺を水平にして連結されたものである。
【００１９】
請求項５記載の発明は、請求項１〜請求項４のいずれかに記載の床構造に係り、前記天井野縁に制振重りが取り付けられているものである。
【００２０】
請求項６記載の発明は、請求項１〜請求項５のいずれかに記載の床構造が備えられているものである。なお、この床構造は、建物ユニットの上部、下部、中間部のいずれの場所にあってもよい。
【００２１】
【作用】
請求項１記載の発明は、ほぼ平行な床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、この垂直連結板のほぼ垂直な側面と天井野縁との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているので、床の上を人が歩いたり物を落下させて床が振動しても、この振動は、重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材で吸収され、天井野縁に伝わり難く、極めて良好な防振性、遮音性を備えた床構造である。
【００２２】
かかる床構造にする一施工方法は、弾性防振材が取り付けられている天井野縁を垂直連結板のほぼ垂直な側面に取り付けたり、ほぼ垂直な側面に弾性防振材が取り付けられている垂直連結板に天井野縁を取り付けたり、弾性防振材を挟んで天井野縁を垂直連結板の側面に押し当て、天井野縁を弾性防振材と共に垂直連結板に取り付ければよく施工し易い。
【００２３】
また、天井野縁は垂直連結板のほぼ垂直な側面に取り付けられているので、垂直連結板の下面の高さを梁部材の下面より天井野縁の高さだけ高い位置にして垂直連結板を梁部材に取り付けることにより、この天井野縁の下面に取り付けられる天井材の高さを梁部材のすぐ下方に設けることができる。即ち、従来の梁部材に直接天井材を取り付ける場合とほぼ同じ高さに天井材を取り付けることができる。
【００２４】
又、ほぼ平行な梁部材の間に垂直連結板を差し渡して取り付けることにより、梁部材が倒れなくなると同時に、梁部材間の連結を強固にすることができ、床の剛性が増す。このように床の剛性が増すと、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、床が振動し難くなる。
【００２５】
請求項２記載の発明は、ほぼ平行な床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、天井野縁に天井野縁側連結金具の天井野縁側取付部が取り付けられ、この天井野縁に取り付けられた天井野縁側連結金具の垂直片と垂直連結板のほぼ垂直な側面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているので、床の上を人が歩いたり物を落下させて床が振動しても、この振動は、重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材で吸収され、天井野縁に伝わり難く、極めて良好な防振性、遮音性を備えた床構造である。
【００２６】
かかる床構造にする一施工方法は、例えば、天井野縁の上面に天井野縁側取付部となる水平片と垂直片とでＬ字形に形成された天井野縁側連結金具の天井野縁側取付部である水平片を取り付け、弾性防振材を連結金具の垂直片に取り付けたり垂直連結板の垂直面に取り付け、この弾性防振材を挟んで天井野縁側連結金具の垂直片を垂直連結板の側面に押し当てて取り付ければよく施工し易い。
【００２７】
また、請求項１記載の発明と同様に、垂直連結板の下面の高さを梁部材の下面より天井野縁の高さだけ高い位置にして垂直連結板を梁部材に取り付けることにより、この天井野縁の下面に取り付けられる天井材の高さを梁部材のすぐ下方に設けることができる。即ち、従来の梁部材に直接天井材を取り付ける場合とほぼ同じ高さに天井材を取り付けることができる。
【００２８】
又、ほぼ平行な梁部材の間に垂直連結板を差し渡して取り付けることにより、梁部材が倒れなくなると同時に、梁部材間の連結を強固にすることができ、床の剛性が増す。このように床の剛性が増すと、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、床が振動し難くなる。
【００２９】
請求項３記載の発明では、ほぼ平行な床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、この垂直連結板のほぼ垂直な側面にＬ字形の垂直連鉄板側連結金具の垂直片が取り付けられ、前記天井野縁に天井野縁側連結金具の天井野縁側取付部が取り付けられ、垂直連結板に取り付けられた垂直連結板側連結金具の水平片の上面と天井野縁に取り付けられた天井野縁側連結金具の上側水平片の下面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているので、床の上を人が歩いたり物を落下させて床が振動しても、この振動は、重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材で吸収され、天井野縁に伝わり難く、極めて良好な防振性を備えた床構造である。
【００３０】
かかる床構造にする一施工方法は、例えば、天井野縁の上面に、天井野縁側取付部である下側水平片と上側水平片と垂直板部とでＺ字形に形成された天井野縁側連結金具の天井野縁側取付部である下側水平片を取り付け、垂直連結板の垂直側面にＬ字形の垂直連結板側連結金具の垂直片を取り付け、この垂直連結板側連結金具の水平片の上面、または、天井野縁側連結金具の上側水平片の下面に弾性防振材を取り付け、この弾性防振材を挟んだ状態にして、垂直連結板側連結金具の水平片の上面に天井野縁側連結金具の上側水平片を載せると、弾性防振材を挟んで天井野縁を垂直連結片に取り付けることができ、施工し易い。
【００３１】
また、請求項１記載の発明と同様に、垂直連結板の下面の高さを梁部材の下面より天井野縁の高さだけ高い位置にして垂直連結板を梁部材に取り付けることにより、この天井野縁の下面に取り付けられる天井材の高さを梁部材のすぐ下方に設けることができる。即ち、従来の梁部材に直接天井材を取り付ける場合とほぼ同じ高さに天井材を取り付けることができる。
【００３２】
又、ほぼ平行な梁部材の間に垂直連結板を差し渡して取り付けることにより、梁部材が倒れなくなると同時に、梁部材間の連結を強固にすることができ、床の剛性が増す。このように床の剛性が増すと、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、床が振動し難くなる。
【００３３】
請求項４記載の発明は、天井野縁が断面矩形状の長尺体の野縁受け材と断面矩形状の長尺体の野縁材とからなり、断面矩形状の長辺を垂直にした野縁受け材の下面に野縁材が、野縁材の断面矩形状の長辺を水平にして連結されたものであるから、断面矩形状の野縁受け材の長辺を垂直にすることよって天井野縁が撓み難くなるし、野縁材の長辺を水平にすることになり下面が広くなり、この下面に天井材に取り付け易くなる。換言すると、全体を大きな断面にするより材料が少なく、しかも、大きな断面の天井野縁とほぼ同じ性能を有する良好な天井野縁となる。
【００３４】
請求項５記載の発明は、天井野縁に制振重りが取り付けられて重くなっているから、床の上を人が歩いたり床の上に物を落下させたりして梁部材が振動しても、弾性防振材を介して取り付けられている野縁受けが振動し難い。
【００３５】
請求項６記載の発明は、請求項１〜請求項５のいずれかに記載の床構造が備えられているから、居室の十分な天井高さを確保しつつ遮音性能のよいユニット建物となる。
【００３６】
【発明の実施の形態】
次に、本発明の実施の形態を示す。
（実施例１）図１〜図３は本発明の床構造をユニット建物に適用した一実施例を示すもので、図１（イ）は床パネルの一部の部品を外した状態を示す一部切欠説明図、（ロ）は床パネルを下階の壁パネルの上に取り付けたときの（イ）のＡ−Ａ線における断面図、図２（イ）は床材を取り除いた床パネルの平面図、（ロ）は（イ）のＢ−Ｂ線における断面図、（ハ）は（イ）のＣ−Ｃ線における断面図、図３はユニット建物を示す説明図である。
【００３７】
図１〜図３において、Ｕはユニット建物であり、このユニット建物Ｕは、図３に示すように、基礎９の上に１階の建物ユニットＵ１が据え付けられ、この上に２階の建物ユニットＵ２が据え付けられ、最上階の建物ユニットＵ１，Ｕ２の上に屋根ユニットＵ３が取り付けられたものである。
【００３８】
１は２階の建物ユニットＵ２の床パネルであり、この床パネル１は床と下階の天井とからなる。この床パネル１の骨格は、一対の桁側床大梁１１，１１と一対の妻側床大梁１２，１２とが矩形状に枠組されている。この相対する妻側床大梁１２，１２には４本（複数）のほぼ平行な床小梁１３，１３，１３，１３が差し渡されている。また、桁側床大梁１１，１１間はこの平行な床小梁１３，１３，１３，１３よってほぼ等間隔に区切られている。さらに、この床小梁１３と桁側床大梁１１との間や、床小梁１３と隣の床小梁１３との間に垂直連結板１４が差し渡されて取り付けられている。そして、この桁側床大梁１１，妻側床大梁１２，床小梁１３等の梁部材の上面に床材１５が取り付けられて床が構成されている。
【００３９】
このように、ほぼ平行な梁部材の間に垂直連結板１４を差し渡すことにより、この床パネル１は桁側床大梁１１や床小梁１３等の梁部材が倒れることがなくなると同時に、桁側床大梁１１や床小梁１３等の梁部材間の連結が強固になり、床パネル１の剛性が増す。このように床パネル１の剛性が増すと、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、床が振動し難くなる。
【００４０】
２は天井を構成する天井パネルであり、この天井パネル２は厚みほぼ１２．５ｍｍの石膏ボードの天井材２１と、この天井材２１の上面に取り付けられた天井野縁２２とからなる。なお、この天井野縁２２は野縁材（断面ほぼ３１ｍｍ×ほぼ４３ｍｍの木製長尺体）２２１の長辺を水平にし、この上に厚みほぼ９ｍｍの合板のスペーサー２２２を介して野縁受け（断面ほぼ３８ｍｍ×ほぼ８９ｍｍの木製長尺体）２２３の長辺を垂直にして取り付けたものであり、天井材２１は野縁材２２１の下面に取り付けられている。
【００４１】
この天井パネル２が床パネル１に取り付けられる取付構造は、野縁受け２２３の上面にＬ字形の連結金具（天井野縁側連結金具）４の水平片（天井野縁側取付部）４１が取り付けられ、垂直連結板１４のほぼ垂直な側面に平板状の連結金具（垂直連結板側連結金具）５が取り付けられ、この野縁受け２２３側の連結金具４の垂直片４２と垂直連結材１４側の連結金具５との間に弾性防振材３を挟んで、野縁受け２２３が垂直連結板１４の垂直側面１４１に連結されて、天井パネル２が床パネル１の垂直連結板１４に取り付けられている。
【００４２】
なお、この際、垂直連結板１４の下面の高さは桁側床大梁１１，妻側床大梁１２，床小梁１３等の梁部材の下面より天井野縁２２の高さだけ高い位置になっている。このようになっているので、この天井野縁２２の下面に取り付けられる天井材２１が桁側床大梁１１，妻側床大梁１２，床小梁１３等の梁部材のすぐ下方に設けられている。即ち、従来の梁部材に直接天井材２１を取り付ける場合とほぼ同じ高さに天井材２１が取り付けられている。
【００４３】
また、天井野縁２２では、断面矩形状の野縁受け材２２３の長辺が垂直になっているので、天井野縁２２が撓み難い。又、野縁材２２１が断面矩形状の長辺を水平にして野縁受け材２２３の下面に取り付けられているので、野縁材の下面が広くなり、この下面に天井材２１を取り付け易い。換言すると、全体を大きな断面にするより材料が少なく、しかも、全体を大きくした天井野縁とほぼ同じ性能を有する良好な天井野縁である。
【００４４】
６は重さ３．３８ｋｇの鉛塊の制振重り（防振重り）であり、この制振重り６は天井野縁２２の野縁受け２２３の上面に取り付けられている。このように野縁受け２２３の上に制振重り６が取り付けられていると、天井野縁２２が重くなり、野縁受け２２３が振動し難くなり、重量床衝撃音を低減する。
【００４５】
２階の建物ユニットＵ２は、この床パネル１の周囲に図示しない壁パネルが立設されたものである。又、１階の建物ユニットＵ１は上記床パネル１の天井パネルを除いた構造とほぼ同じ床パネルの周囲に壁パネルを立設したものであるので、説明を省略する。尚、図１（ロ）にはこの１階の建物ユニットＵ１の壁パネル７が記載されている。又、屋根ユニットＵ３は屋根パネルでもよいが、いずれにせよ床構造と関係がないので説明を省略する。
【００４６】
次に、ユニット建物Ｕの施工方法および作用について説明する。工場で１階の建物ユニットＵ１、２階の建物ユニットＵ２および屋根ユニットＵ３を製造する。この際の２階建物ユニットＵ２の床パネル１の製造方法を説明する。桁側床大梁１１，１１と妻側床大梁１２，１２とを矩形状に枠組し、この相対する妻側床大梁１２，１２に床小梁１３，１３・・をほぼ平行に差し渡し、床小梁１３と桁側床大梁１１や、床小梁１３と隣の床小梁１３に、ほぼ垂直な側面に平板状の連結金具５が取り付けられた垂直連結板１４を差し渡し取り付けて床パネル１の骨格を製造する。
【００４７】
一方、断面矩形状の野縁受け材２２３の長辺を垂直にし、この野縁受け材２２３の下面にスペーサー２２２と野縁材２２１とを取り付けて天井野縁２２を製造し、この野縁受け２２３の上面にＬ字形の連結金具４の水平片４１を取り付ける。そして、この野縁受け２２３側の連結金具４の垂直片４２と垂直連結板１４側の連結金具５との間に弾性防振材３を挟んで、野縁受け２２３を垂直連結板１４の垂直側面１４１に連結して、天井野縁２２を床パネル１の垂直連結板１４に取り付ける。弾性防振材３は動的バネ定数が５〜３００Ｎ／ｍｍのゴム製である。
【００４８】
なお、この際、垂直連結板１４の下面の高さを桁側床大梁１１，妻側床大梁１２，床小梁１３等の梁部材の下面より天井野縁２２の高さだけ高い位置に取り付ける。桁側床大梁１１、妻側床大梁１２、床小梁１３等の梁部材の上面に床材１５を取り付け、天井野縁２２の野縁材２２１の下面に天井材２１を取り付けて床パネル１を製造する。
【００４９】
このようにして製造した床パネル１では、天井野縁２２の下面に取り付けられた天井材２１が垂直連結板１４の下面の高さを桁側床大梁１１，妻側床大梁１２，床小梁１３等の梁部材のすぐ下方に取り付けられている。即ち、従来の梁部材に直接天井材２１を取り付ける場合とほぼ同じ高さに天井材２１が取り付けられている。従って、この床パネル１を使用した建物ユニットを組み込んだユニット建物Ｕは、従来の建物ユニットとほぼ同じ高さにしても、床と天井との距離を従来とほぼ同じにすることができ、十分な天井高さを居室を形成でき居住性の良好な建物となる。
【００５０】
また、このように、天井野縁２２の上面にＬ字形の連結金具４の水平片４１を取り付け、垂直連結板１４のほぼ垂直な側面に平板状の連結金具５を取り付け、この野縁受け２２３側の連結金具４の垂直片４２と垂直連結板１４側の連結金具５との間に弾性防振材３を挟んで、野縁受け２２３を垂直連結板１４の垂直側面１４１に連結するだけで、天井野縁２２を床パネル１の垂直連結板１４に取り付けることができ施工し易い。
【００５１】
このようにして製造した１階の建物ユニットＵ１、２階の建物ユニットＵ２、屋根ユニットＵ３等を施工現場に運搬し、施工現場では、予め設けられている基礎９の上に１階の建物ユニットＵ１を据え付け、この上に２階の建物ユニットＵ２を据え付け、最上階の建物ユニットＵ１，Ｕ２の上に屋根ユニットＵ３を取り付け、種々な仕上げを行うとユニット建物Ｕが完成する。
【００５２】
このようにして完成したユニット建物Ｕでは、天井野縁２２に取り付けられた連結金具４の垂直片４２と垂直連結板１４のほぼ垂直な側面に取り付けられた平板状の取付金具５の間に弾性防振材３を挟んで天井野縁２２が垂直連結板１４に取り付けられていて、床の上を人が歩いたり物を落下させて床が振動しても、この振動を重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材３で吸収して天井野縁２２に伝わり難くなっているし、床パネル１が垂直連結板１４によって剛性が増し床パネル１の耐衝撃性がよくなっているし、野縁受け２２３の上に制振重り６が取り付けられていて野縁受け２２３が振動し難くなっているというように、幾重にも振動を防ぐ構造を備えているので、極めて良好な防振性を有する床構造を備えた建物である。
（実施例２）
図４は本発明の他の実施例を示すもので、垂直連結板に天井野縁が取り付けられている取付構造を示す説明図である。
【００５３】
この図４に示す実施例２を図１〜図３に示す実施例１と比較すると、垂直連結板１４ａに天井野縁２２ａが取り付けられている取付構造が異なる。即ち、野縁受け２２３ａの上面にＬ字形の連結金具（天井野縁側連結金具）４ａの水平片４１ａが取り付けられ、この野縁受け２２３ａ側の連結金具４ａの垂直片４２ａと垂直連結板１４ａのほぼ垂直な側壁１４１ａとの間に弾性防振材３ａを挟んで、天井野縁２２ａが床パネル１ａの垂直連結板１４ａに取り付けられている。換言すると、実施例１では垂直連結板に平板状の取付金具が取り付けられているが、この実施例２では垂直連結板１４ａに平板状の取付金具を取り付けることなく直接弾性防振材３ａが当接されて取り付けられていることが異なる。その他の構造および作用は実施例１とほぼ同じであるので説明を省略する。
（実施例３）
図５は本発明の別の実施例を示すもので、垂直連結板に天井野縁が取り付けられている取付構造を示す説明図である。
【００５４】
この図５に示す実施例３を図１〜図３に示す実施例１と比較すると、垂直連結板１４ｂに天井野縁２２ｂが取り付けられた取付構造が異なる。即ち、野縁受け２２３ｂの上面にＺ字形の連結金具（天井野縁側連結金具）４ｂの下側水平片４１ｂが取り付けられている。なお、この連結金具４ｂは天井野縁側取付部である下側水平片と上側水平片と垂直片とでＺ字形に形成されたものである。又、垂直連結材１４ｂのほぼ垂直な側面にＬ字形の連結金具（垂直連結板側連結金具）５ｂの垂直片５２ｂが取り付けられ、水平片５１ｂの上面に弾性防振材３ｂが取り付けられている。
【００５５】
そして、この野縁受け２２３ｂ側の連結金具４ｂの上側水平片４３ｂと垂直連結材１４ｂ側の連結金具５ｂの水平片５１ｂとの間に弾性防振材３ｂを挟むようにして、野縁受け２２３ｂ側の連結金具４ｂの上側水平片４３ｂが垂直連結板１４ｂ側の連結金具５ｂの水平片５１ｂの上に載せられて、天井野縁２２ｂが床パネル１ｂの垂直連結板１４ｂに取り付けられている。その他の構造および作用は弾性防振材を剪断防振材を剪断方向に用いた実施例１に大して弾性防振材を圧縮方向に用いたことにより防振性能が工場した以外は実施例１とほぼ同じであるので説明を省略する。
（実施例４）
図６は本発明の更に別の実施例を示すもので、垂直連結板に天井野縁が取り付けられている取付構造を示す説明図である。この図６に示す実施例４を図１〜図３に示す実施例１と比較すると、垂直連結板１４ｃに天井野縁２２ｃが取り付けられている取付構造が異なる。即ち、野縁受け２２３ｃの上面にＺ字形の連結金具（天井野縁側連結金具）４ｃの下側水平片天井野縁側取付部）４１ｃが取り付けられ、上側水平片４３ｃの下面に弾性防振材３ｃが取り付けられている。
【００５６】
又、垂直連結材１４ｃのほぼ垂直な側面にＬ字形の連結金具５ｃの垂直片５２ｃが取り付けられている。そして、この野縁受け２２３ｃ側の連結金具４ｃの上側水平片４３ｃと垂直連結材１４ｃ側の連結金具５ｃの水平片５１ｃとの間に弾性防振材３ｃを挟むようにして、野縁受け２２３ｃ側の連結金具４ｃの上側水平片４３ｃが垂直連結板１４ｃ側の連結金具５ｃの水平片５１ｃの上に載せられて、天井野縁２２ｃが床パネル１ｃの垂直連結板１４ｃに取り付けられている。その他の構造および作用は実施例３とほぼ同じであるので説明を省略する。
【００５７】
以上実施例に基づいて説明したが、本発明はこの実施例に限られるものでなく、本発明の要旨に反しない程度に変更があっても本発明に含まれる。例えば、床上制振シートを取り付けていてもよいし、本発明の床構造と、床根太、床材、天井材とで空気を密閉にする床の遮音性能の向上とを併用して全体のとしての床遮音性能を向上させてもよい。又、ユニット建物以外の建物に応用してもよい。
【００５８】
【発明の効果】
請求項１記載の発明は、ほぼ平行な床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、この垂直連結板のほぼ垂直な側面と天井野縁との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているので、床の上を人が歩いたり物を落下させて床が振動しても、この振動は、重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材で吸収され、天井野縁に伝わり難く、極めて良好な防振性、遮音性を備えた床構造であるし、施工し易い床構造である。
【００５９】
また、天井野縁は垂直連結板のほぼ垂直な側面に取り付けられているので、従来の梁部材に直接天井材を取り付ける場合とほぼ同じ高さに天井材を取り付けることができる。従って、この床構造をユニット建物を適用しても、なんら支障がない。即ち、この床構造を備えた建物ユニットは従来と同じ高さにして運搬できるし、この床構造の床パネルを使用した建物ユニットを組み込んだユニット建物は床と天井との距離を従来とほぼ同じにすることができ居住性の良好な建物となる。又、ほぼ平行な梁部材の間に垂直連結板を差し渡されて取り付けられているので、梁部材が倒れることがなくなると同時に、梁部材間の連結を強固にすることができ、床の剛性が増し、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、振動し難くなる。
【００６０】
請求項２記載の発明は、ほぼ平行な床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、天井野縁に天井野縁側連結金具の天井野縁側取付部が取り付けられ、この天井野縁に取り付けられた天井野縁側連結金具の垂直片と垂直連結板のほぼ垂直な側面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているので、床の上を人が歩いたり物を落下させて床が振動しても、この振動は、重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材で吸収され、天井野縁に伝わり難く、極めて良好な防振性、遮音性を備えた床構造であるし、施工し易い床構造である。
【００６１】
また、請求項１記載の発明と同様に、天井野縁は垂直連結板のほぼ垂直な側面に取り付けられているので、従来の梁部材に直接天井材を取り付ける場合とほぼ同じ高さに天井材を取り付けることができる。従って、この床構造をユニット建物を適用しても、なんら支障がない。即ち、この床構造を備えた建物ユニットは従来と同じ高さにして運搬できるし、この床構造の床パネルを使用した建物ユニットを組み込んだユニット建物は床と天井との距離を従来とほぼ同じにすることができ居住性の良好な建物となる。又、ほぼ平行な梁部材の間に垂直連結板を差し渡すことにより、梁部材が倒れることがなくなると同時に、梁部材間の連結を強固にすることができ、床の剛性が増し、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、振動し難くなる。
【００６２】
請求項３記載の発明では、ほぼ平行な床大梁と前記床小梁との間及び各床小梁間に垂直連結板が差し渡されて取り付けられ、この垂直連結板のほぼ垂直な側面にＬ字形の垂直連結板側連結金具の垂直片が取り付けられ、天井野縁に天井野縁側連結金具の天井野縁側取付部が取り付けられ、垂直連結板に取り付けられた垂直連結板側連結金具の水平片の上面と天井野縁に取り付けられたＺ字形の連結金具の上側水平片の上面との間に弾性防振材を挟んで天井野縁が垂直連結板に取り付けられているので、床の上を人が歩いたり物を落下させて床が振動しても、この振動は、重量床衝撃音も軽量床衝撃音も殆どすべて弾性防振材で吸収され、天井野縁に伝わり難く、極めて良好な防振性を備えた床構造であるし、施工し易い床構造である。
【００６３】
また、請求項１記載の発明と同様に、天井野縁は垂直連結板のほぼ垂直な側面に取り付けられているので、従来の梁部材に直接天井材を取り付ける場合とほぼ同じ高さに天井材を取り付けることができる。従って、この床構造をユニット建物を適用しても、なんら支障がない。即ち、この床構造を備えた建物ユニットは従来と同じ高さにして運搬できるし、この床構造の床パネルを使用した建物ユニットを組み込んだユニット建物は床と天井との距離を従来とほぼ同じにすることができ居住性の良好な建物となる。又、ほぼ平行な梁部材の間に垂直連結板を差し渡して取り付けることにより、梁部材が倒れなくなると同時に、梁部材間の連結を強固にすることができ、床の剛性が増し、特に、重量床衝撃音に対する床の耐衝撃性がよくなり、振動し難くなる。
【００６４】
請求項４記載の発明は、天井野縁が断面矩形状の長尺体の野縁受け材と断面矩形状の長尺体の野縁材とからなり、断面矩形状の長辺を垂直にした野縁受け材の下面に野縁材が、野縁材の断面矩形状の長辺を水平にして連結されたものであるから、天井野縁が撓み難いし、天井材を取り付け易い。
【００６５】
請求項５記載の発明は、天井野縁に制振重りが取り付けられて重くなっているから、床の上を人が歩いたり床の上に物を落下させたりして梁部材が振動しても、弾性防振材を介して取り付けられている野縁受けが振動し難くなる。
【００６６】
請求項６記載の発明は、請求項１〜請求項５のいずれかに記載の床構造が備えられているから居室の十分な天井高さを確保しつつ遮音性能のよいユニット建物となる。
【図面の簡単な説明】
【図１】本発明の床構造をユニット建物に適用した一実施例を示すもので、（イ）は床パネルの一部の部品を外した状態を示す一部切欠説明図、（ロ）は床パネルを下階の壁パネルの上に取り付けたときの（イ）のＡ−Ａ線における断面図である。
【図２】（イ）は床材を取り除いた床パネルの平面図、（ロ）は（イ）のＢ−Ｂ線における断面図、（ハ）は（イ）のＣ−Ｃ線における断面図である。
【図３】ユニット建物を示す説明図である。
【図４】本発明の他の実施例を示すもので、垂直連結板に天井野縁が取り付けられた取付構造を示す説明図である。
【図５】本発明の別の実施例を示すもので、垂直連結板に天井野縁が取り付けられた取付構造を示す説明図である。
【図６】本発明の更に別の実施例を示すもので、垂直連結板に天井野縁が取り付けられた取付構造を示す説明図である。
【図７】従来の床構造を示す説明図である。
【符号の説明】
１床パネル
１１桁側床大梁
１２妻側床大梁
１３床小梁
１４，１４ａ，１４ｂ，１４ｃ垂直連結板
１５床材
２１天井材
２２，２２ａ，２２ｂ，２２ｃ天井野縁
２２１野縁材
２２２スペーサー
２２３、２２３ａ，２２３ｂ，２２３ｃ野縁受け
３，３ａ，３ｂ，３ｃ弾性防振材
４，４ａ連結金具
４１，４１ａ水平片
４ｂ，４ｃ連結金具
４１ｂ、４１ｃ下側水平片
４３ｂ，４３ｃ上側水平片
４２，４２ａ垂直片
５連結金具
５ｂ，５ｃ連結金具
５１ｂ，５１ｃ水平片
５２ｂ，５２ｃ垂直片[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a floor structure with good sound insulation performance. In particular, the present invention relates to a floor structure suitable for a unit building.
[0002]
[Prior art]
  Conventionally, when you walk on the floor of the upper floor or drop an object on the floor, the floor vibrates, and the sound generated by this vibration echoes to the lower floor, causing inconvenience to people on the lower floor. . In order to prevent this, various floor structures are conventionally known. For example, in Japanese Utility Model Laid-Open No. 58-123111 and Japanese Utility Model Showa 58-174516, a mounting bracket having a vertical surface is attached to the lower surface of the floor structural material, and the upper surface of the ceiling edge has a vertical surface. A mounting bracket is attached, and both the mounting brackets are connected between the vertical surface of the mounting bracket on the floor side and the vertical surface of the mounting bracket on the ceiling field edge side, with an elastic vibration-proof material sandwiched, so that the ceiling field edge is on the floor The floor structure attached to the structural material is described.
[0003]
  On the other hand, as a floor structure of a building unit constituting a unit building, a structure including a floor and a ceiling shown in FIG. 7 is known. That is, the skeleton of the floor of the building unit has girder-side floor beams 102 and 102 arranged at the side edges, and a plurality of floor beams 103,. A vertical connecting member 104 is attached between the floor beam 103 and the floor beam 102 or between the floor beam 103 and the adjacent floor beam 103. As described above, the beam members composed of the large floor beam 102 and the small floor beam 103 are substantially parallel to each other, and the vertical connecting member 104 is attached to the approximately parallel beam member. And the floor material 101 is attached to the upper surface of this beam member, and the floor is comprised.
[0004]
  In this floor structure, the joist 105 is attached to the substantially vertical side surface of the lower end of the beam member such as the floor beam 102 and the floor beam 103, and the horizontal connecting plate 106 is bridged on the joist 105. The ceiling edge 108 is attached to the horizontal connecting plate 106 via the ceiling edge receiving member 107, the ceiling material 109 is attached to the lower surface of the ceiling edge 108, and the ceiling of the lower floor is attached to the beam member. Yes. In this way, in the floor structure of this unit building, vibrations of the flooring can be obtained by attaching the beam members 102 and 103 via the horizontal connecting plate 106 and the field edge receiving material 107 instead of directly attaching the ceiling edge 108. It is not transmitted directly to the ceiling material.
[0005]
[Problems to be solved by the invention]
  However, in the floor structure of this unit building, the lightweight floor impact sound is generated by the connection between the floor beam member such as the large floor beam 102 and the floor beam 103 and the joist 105, or between the joist 105 and the field edge receiving member 107. It is greatly reduced when propagating through the connection, but furtherDecreaseIs required. Further, in the floor structure that is attached via the horizontal connecting plate 106 and the field edge receiving material 107, the field edge receiving material 107 is attached by putting a hand between the substantially parallel beam members, It is necessary to attach the connecting plate 106, and it is extremely difficult to construct.
[0006]
  On the other hand, in the floor structure described in the above publication, since the ceiling is attached to the lower surface of the structural material via an elastic vibration isolator, transmission of heavy floor impact sound can be prevented and transmission of lightweight floor impact sound can also be prevented. Can have a good floor structure. Therefore, as described in the above publication, a mounting bracket having a vertical surface is attached to the lower surface of the beam member that is the structural material of the floor of the building unit, and a mounting bracket having a vertical surface is also attached to the upper surface of the ceiling edge. Attempt was made to connect both mounting brackets with an elastic vibration-proof material sandwiched between the vertical surface of the beam member mounting bracket and the vertical edge of the ceiling edge, but the distance between the flooring and the ceiling material was large. Turned out to be unsuitable for unit buildings.
[0007]
  That is, the unit building is a unit in which a building unit constituting the unit building is manufactured at a factory or the like, transported to a construction site, and assembled at the construction site. In order to transport the building unit from the factory to the construction site in this way, the height of the building unit is limited by the Road Traffic Law. On the other hand, in order to improve the habitability of the building, the distance between the floor and the ceiling should be large. Therefore, in a normal building unit, the distance between the floor material and the ceiling material of the lower floor is made as small as possible to improve the comfortability. Therefore, there is no gap for providing the floor structure described in the above publication between the floor and the ceiling of the lower floor, and the floor structure described in the above publication cannot be employed.
[0008]
  Therefore, the object of the present invention is that it is difficult for the impact sound to propagate to the lower floor even for the lightweight floor impact sound, and the distance between the floor material and the ceiling material of the lower floor can be made substantially the same as the conventional one. Is to provide a floor structure.
[0009]
[Means for Solving the Problems]
  The present invention was made to achieve the above object, and the invention according to claim 1A pair of floor beams, a plurality of floor beams arranged between the pair of floor beams almost in parallel and at equal intervals, and the floor beams and floor beamsA floor structure comprising a floor made of flooring attached to the upper surface of the floor, and a ceiling of a lower floor made up of a ceiling nose and a ceiling material attached to the lower surface of the ceiling nose,Between the floor girder and the floor girder and between each floor girderThe vertical connecting plate is handed over and attached,The height of the lower surface of the vertical connecting plate is provided at a position higher than the lower surface of the floor beam by the height of the ceiling field edge,A ceiling field edge is attached to the vertical connection board with an elastic vibration-proof material sandwiched between a substantially vertical side surface of the vertical connection board and the ceiling field edge.It is characterized by a floor structure.
[0010]
  The invention according to claim 2A pair of floor beams, a plurality of floor beams arranged between the pair of floor beams almost in parallel and at equal intervals, and the floor beams and floor beamsA floor structure comprising a floor made of flooring attached to the upper surface of the floor, and a ceiling of a lower floor made up of a ceiling nose and a ceiling material attached to the lower surface of the ceiling nose,Between the floor girder and the floor girder and between each floor girderThe vertical connecting plate is handed over and attached,The height of the lower surface of the vertical connecting plate is provided at a position higher than the lower surface of the floor beam by the height of the ceiling field edge,A ceiling nose side mounting portion of a ceiling nose side connection fitting is attached to the ceiling nose and elastic between a vertical piece of the ceiling nose side connection fitting attached to the ceiling nose and a substantially vertical side surface of the vertical connecting plate. The ceiling edge is attached to the vertical connecting plate across the anti-vibration material.It is characterized by a floor structure.
[0011]
  In the second aspect of the invention, the ceiling field edge is vertical with an elastic vibration-proofing material sandwiched between the vertical piece of the ceiling field edge side connection fitting attached to the ceiling field edge and the substantially vertical side surface of the vertical connection plate. Although it is attached to the connecting plate, in order to achieve such a structure, the elastic vibration isolator is brought into direct contact with the substantially vertical side surface of the vertical connecting plate, and the vertical edge of the ceiling nose side fitting is sandwiched between the elastic anti-vibration materials. The piece may be attached to the vertical connecting plate, or a plate-like connecting bracket is attached to the substantially vertical side surface of the vertical connecting plate, and an elastic vibration-proof material is brought into contact with the side surface of the flat plate-like vertical connecting plate side connecting bracket. The vertical piece of the ceiling nose side coupling fitting may be attached to the vertical coupling plate with the elastic vibration isolator and the flat vertical coupling plate coupling fitting interposed therebetween. In addition, the structure of the ceiling nose side coupling fitting may be simple if it is formed in an L shape with a horizontal piece and a vertical piece as the ceiling nose side mounting portion.
[0012]
  The invention described in claim 3A pair of floor beams, a plurality of floor beams arranged between the pair of floor beams almost in parallel and at equal intervals, and the floor beams and floor beamsA floor structure comprising a floor made of flooring attached to the upper surface of the floor, and a ceiling of a lower floor made up of a ceiling nose and a ceiling material attached to the lower surface of the ceiling nose,Between the floor girder and the floor girder and between each floor girderThe vertical connecting plate is handed over and attached,The height of the lower surface of the vertical connecting plate is provided at a position higher than the lower surface of the floor beam by the height of the ceiling field edge,A vertical piece of a vertical connecting plate side connecting bracket is attached to a substantially vertical side surface of the vertical connecting plate, and a ceiling nose side attaching portion of a ceiling nose side connecting bracket is attached to the ceiling nose and attached to the vertical connecting plate. The ceiling edge is attached to the vertical connection plate with an elastic vibration-proof material sandwiched between the upper surface of the horizontal piece of the vertical connection plate side connection fitting and the upper horizontal piece of the ceiling field edge connection fitting attached to the ceiling nose. Has beenIt is characterized by a floor structure.
[0013]
  The structure of the ceiling field edge side coupling fitting may be simple if it is formed in a Z shape by the lower horizontal piece, the upper horizontal piece and the vertical plate part which are the edge side attachment parts of the ceiling. Further, the vertical connecting plate side connecting metal fitting may be simple in structure if it is formed in an L shape with a vertical piece and a horizontal piece.
[0014]
  The beam member in the first to third aspects of the invention refers to a floor structural material such as a large floor beam and a small floor beam. The elastic vibration isolator used in the inventions according to claims 1 to 3 has elasticity such as rubber and soft rigid resin, and the ceiling edge is vertically connected across the elastic vibration isolator. When attached to the plate, even if the vertical connecting plate vibrates, the elastic vibration-proof material absorbs this vibration and the ceiling edge hardly vibrates.
[0015]
  In order for this elastic vibration isolator to absorb the vertical vibration well, the lower the spring constant in the vertical direction (the shear direction in the invention of claim 2 and the compression direction in the invention of claim 3), the greater the effect. However, if the spring constant is lowered, the ceiling is likely to bend, and therefore, it is preferable to have a spring constant that does not cause the ceiling to bend. For example, this spring constant needs to be 100 kgf / cm or more in order to make the ceiling deflection when the illumination of about 10 kg is suspended to 1 mm or less. 1 kgf / cm is 9.80665 N / cm.
[0016]
  When this spring constant (the shear spring constant (static characteristics) in the invention of claim 2 and the compression spring constant in the invention of claim 3) is about 100 kgf / cm, the anti-vibration effect (spring constant (dynamic Both properties)) are about 150 kgf / cm, and have a very good anti-vibration effect.
[0017]
  In general, since the spring constant in the shearing direction is 1/4 to 1/7 of the spring constant in the compression direction, in the floor structure to which the elastic vibration isolator according to the present invention is attached, the elastic vibration isolator having the same spring constant. In the case of using the anti-vibration effect, the anti-vibration effect with respect to the vibration in the horizontal direction is 1/16 to 1/50 of the invention according to claim 3. Therefore, when an elastic vibration-proof material having substantially the same spring constant is used, the invention according to claim 3 is superior in the ability to absorb horizontal vibration.
[0018]
  A fourth aspect of the present invention relates to the floor structure according to any one of the first to third aspects, wherein the ceiling field edge is a long field having a rectangular section and a long section having a rectangular section. It is composed of a field edge material, and a field edge material is connected to a lower surface of a field edge receiving material with a long side of a rectangular cross section being vertical, and a long side of the cross section of the field edge material being horizontally connected. is there.
[0019]
  A fifth aspect of the present invention relates to the floor structure according to any one of the first to fourth aspects, wherein a damping weight is attached to the edge of the ceiling.
[0020]
  The invention according to claim 6 is provided with the floor structure according to any one of claims 1 to 5. In addition, this floor structure may exist in any place of the upper part of a building unit, a lower part, and an intermediate part.
[0021]
[Action]
  The invention according to claim 1 is substantially parallel.Between the floor girder and the floor beam and between the floor beamsA vertical connecting plate is attached and attached, and the ceiling nose is attached to the vertical connecting plate with an elastic vibration-proof material sandwiched between the almost vertical side surface of the vertical connecting plate and the nose of the ceiling. Even if a person walks on the floor or drops an object and the floor vibrates, this vibration is absorbed almost completely by the elastic vibration isolator, and it is difficult to transmit to the ceiling edge. It is a floor structure with extremely good vibration and sound insulation.
[0022]
  One construction method to make such a floor structure is to attach the ceiling field edge to which the elastic vibration isolator is attached to the substantially vertical side surface of the vertical connecting plate, or to attach the elastic vibration isolator to the almost vertical side surface. It is easy to install by attaching a ceiling field edge to the connection plate, pressing the ceiling field edge against the side surface of the vertical connection plate with an elastic vibration isolator interposed therebetween, and attaching the ceiling field edge together with the elastic vibration isolation material to the vertical connection plate.
[0023]
  Also, since the ceiling nose is attached to the almost vertical side surface of the vertical connecting plate, the vertical connecting plate should be set so that the height of the lower surface of the vertical connecting plate is higher than the lower surface of the beam member by the height of the ceiling nose. By attaching to the beam member, the height of the ceiling material attached to the lower surface of the ceiling field edge can be provided immediately below the beam member. That is, it is possible to attach the ceiling material to substantially the same height as when the ceiling material is directly attached to the conventional beam member.
[0024]
  Further, by attaching the vertical connection plate between the substantially parallel beam members, the beam members can be prevented from falling down, and at the same time, the connection between the beam members can be strengthened, and the rigidity of the floor is increased. When the rigidity of the floor is increased in this way, in particular, the impact resistance of the floor against heavy floor impact sound is improved, and the floor is less likely to vibrate.
[0025]
  The invention according to claim 2 is substantially parallel.Between the floor girder and the floor beam and between the floor beamsA vertical connecting plate is inserted and attached, and the ceiling nose side mounting part of the ceiling nose side connecting fitting is attached to the ceiling nose, and the vertical piece and the vertical connecting plate of the ceiling nose side connecting fitting attached to this ceiling nose Because the ceiling edge is attached to the vertical connecting plate with elastic vibration isolator between the almost vertical side of the floor, even if a person walks on the floor or drops an object, the floor vibrates, This vibration is almost completely absorbed by the elastic vibration-proof material, and is hardly transmitted to the ceiling edge, and has a very good vibration-proof and sound-insulating property.
[0026]
  One construction method for making such a floor structure is, for example, a ceiling nose side attachment part of a ceiling nose side connection fitting formed in an L shape with a horizontal piece and a vertical piece as a ceiling nose side attachment part on the upper surface of the ceiling nose. Attach a horizontal piece, attach an elastic vibration isolator to the vertical piece of the connecting bracket, or attach it to the vertical surface of the vertical connecting plate. It is easy to install if it is pressed against and attached.
[0027]
  Similarly to the first aspect of the present invention, the vertical connecting plate is attached to the beam member with the height of the lower surface of the vertical connecting plate being higher than the lower surface of the beam member by the height of the ceiling edge. The height of the ceiling member attached to the lower surface of the field edge can be provided immediately below the beam member. That is, it is possible to attach the ceiling material to substantially the same height as when the ceiling material is directly attached to the conventional beam member.
[0028]
  Further, by attaching the vertical connection plate between the substantially parallel beam members, the beam members can be prevented from falling down, and at the same time, the connection between the beam members can be strengthened, and the rigidity of the floor is increased. When the rigidity of the floor is increased in this way, in particular, the impact resistance of the floor against heavy floor impact sound is improved, and the floor is less likely to vibrate.
[0029]
  In invention of Claim 3, it is substantially parallelBetween the floor girder and the floor beam and between the floor beamsA vertical connecting plate is inserted and attached, a vertical piece of an L-shaped vertical connecting plate side connecting fitting is attached to a substantially vertical side surface of the vertical connecting plate, and a ceiling field of the ceiling nose side connecting fitting is attached to the ceiling nose. The edge-side mounting part is attached, and the elastic prevention is provided between the upper surface of the horizontal piece of the vertical connection plate-side connection fitting attached to the vertical connection plate and the lower surface of the upper horizontal piece of the ceiling field-edge connection fitting attached to the ceiling edge. Because the ceiling edge is attached to the vertical connecting plate with the vibration material sandwiched, even if a person walks on the floor or drops an object, the floor vibrates. Almost all the impact sound is absorbed by the elastic vibration-proof material, and it is difficult to be transmitted to the edge of the ceiling, and the floor structure has a very good vibration-proof property.
[0030]
  One construction method for making such a floor structure is, for example, a ceiling field edge side connection formed in a Z shape with a lower horizontal piece, an upper horizontal piece and a vertical plate part which are ceiling field edge side attachment parts on the upper surface of the ceiling field edge Attach the lower horizontal piece, which is the mounting part on the ceiling edge side of the bracket, and attach the vertical piece of the L-shaped vertical coupling plate side coupling bracket to the vertical side surface of the vertical coupling plate, and the upper surface of the horizontal piece of this vertical coupling plate side coupling bracket Or, attach an elastic vibration-proof material to the lower surface of the upper horizontal piece of the ceiling field edge-side connecting bracket, and sandwich the elastic vibration-proof material, and connect the upper edge of the vertical connection plate-side connection bracket to the upper surface of the horizontal piece. When the upper horizontal piece of the metal fitting is placed, the ceiling edge can be attached to the vertical connecting piece with the elastic vibration-proofing material interposed therebetween, and it is easy to construct.
[0031]
  Similarly to the first aspect of the present invention, the vertical connecting plate is attached to the beam member with the height of the lower surface of the vertical connecting plate being higher than the lower surface of the beam member by the height of the ceiling edge. The height of the ceiling member attached to the lower surface of the field edge can be provided immediately below the beam member. That is, it is possible to attach the ceiling material to substantially the same height as when the ceiling material is directly attached to the conventional beam member.
[0032]
  Further, by attaching the vertical connection plate between the substantially parallel beam members, the beam members can be prevented from falling down, and at the same time, the connection between the beam members can be strengthened, and the rigidity of the floor is increased. When the rigidity of the floor is increased in this way, in particular, the impact resistance of the floor against heavy floor impact sound is improved, and the floor is less likely to vibrate.
[0033]
  The invention according to claim 4 is composed of a long edge receiving material having a rectangular cross section and a long edge having a rectangular cross section, and a long side having a rectangular cross section is vertical. Since the field edge material is connected to the lower surface of the field edge receiving material with the long side of the rectangular shape of the field edge horizontal, the long side of the field edge receiving material having the rectangular shape of the cross section is made vertical. Therefore, the ceiling edge becomes difficult to bend, and the long side of the edge material becomes horizontal, and the lower surface becomes wide, and it becomes easy to attach the ceiling material to the lower surface. In other words, there is less material than having a large cross section as a whole, and a good ceiling field edge having almost the same performance as a ceiling field edge of a large section is obtained.
[0034]
  In the fifth aspect of the present invention, since the damping weight is attached to the ceiling edge, the beam member vibrates when a person walks on the floor or drops an object on the floor. However, it is difficult for the field receiver attached via the elastic vibration-proof material to vibrate.
[0035]
  Since the floor structure according to any one of claims 1 to 5 is provided, the invention according to claim 6 becomes a unit building with good sound insulation performance while ensuring a sufficient ceiling height of the living room.
[0036]
DETAILED DESCRIPTION OF THE INVENTION
  Next, an embodiment of the present invention will be described.
(Embodiment 1) FIGS. 1 to 3 show an embodiment in which the floor structure of the present invention is applied to a unit building. FIG. 1 (a) shows a state in which a part of a floor panel is removed. (B) is a cross-sectional view taken along line AA of (b) when the floor panel is mounted on the lower wall panel, and FIG. 2 (b) is a view of the floor panel with the floor material removed. (B) is a cross-sectional view taken along line BB in (a), (c) is a cross-sectional view taken along line CC in (a), and FIG. 3 is an explanatory view showing a unit building.
[0037]
  1 to 3, U is a unit building. As shown in FIG. 3, the unit building U has a first floor building unit U <b> 1 installed on a foundation 9, on which a second floor building unit is installed. U2 is installed, and the roof unit U3 is attached on the building units U1 and U2 on the top floor.
[0038]
  Reference numeral 1 denotes a floor panel of the building unit U2 on the second floor, and the floor panel 1 includes a floor and a ceiling on the lower floor. The skeleton of this floor panel 1 isA pair ofGirder side floor beams 11 and 11A pair ofWife side floor beams 12 and 12 are framed in a rectangular shapeing.This opposite wife side floor girder 12,12In4(Multiple)Almost parallel floor beams 13, 13, 13, 13Has been handed over. In addition, girder floor girder 1 1 and 11, the parallel floor beams 13, 13, 13, 13Almost equally spaceding. further,This floor beam 13 and girder side floor beam 11BetweenAnd the floor beam 13 and the adjacent floor beam 13BetweenThe vertical connecting plate 14 is attached and attachedTheAnd this digit sidefloorOhori 11, wife sidefloorA floor material 15 is attached to the upper surface of a beam member such as a large beam 12 and a floor beam 13 to constitute a floor.
[0039]
  Thus, by passing the vertical connecting plate 14 between the substantially parallel beam members, the floor panel 1 can befloorAt the same time, the beam members such as the large beam 11 and the floor beam 13 will not fall down.floorThe connection between the beam members such as the large beam 11 and the floor beam 13 is strengthened, and the rigidity of the floor panel 1 is increased. When the rigidity of the floor panel 1 is increased in this way, in particular, the impact resistance of the floor against heavy floor impact sound is improved, and the floor is less likely to vibrate.
[0040]
  Reference numeral 2 denotes a ceiling panel that constitutes the ceiling. The ceiling panel 2 includes a ceiling material 21 made of gypsum board having a thickness of approximately 12.5 mm, and a ceiling edge 22 attached to the upper surface of the ceiling material 21. The ceiling edge 22 has a long edge of the edge material (a long wooden body having a cross section of approximately 31 mm × approximately 43 mm) 221 horizontally, and a plywood spacer 222 having a thickness of approximately 9 mm on the ceiling edge ( A long wooden body having a cross section of approximately 38 mm × approximately 89 mm) 223 is attached with the long side thereof being vertical, and the ceiling material 21 is attached to the lower surface of the field material 221.
[0041]
  In the mounting structure in which the ceiling panel 2 is attached to the floor panel 1, a horizontal piece (ceiling field edge side mounting portion) 41 of an L-shaped connection bracket (ceiling field edge side connection bracket) 4 is attached to the upper surface of the field edge receiver 223. A plate-shaped connecting bracket (vertical connecting plate side connecting bracket) 5 is attached to a substantially vertical side surface of the vertical connecting plate 14, and the vertical piece 42 of the connecting bracket 4 on the field edge receiver 223 side is connected to the vertical connecting member 14 side. The edge receiver 223 is connected to the vertical side surface 141 of the vertical connection plate 14 with the elastic vibration-proof material 3 sandwiched between the metal plate 5 and the ceiling panel 2 is attached to the vertical connection plate 14 of the floor panel 1. .
[0042]
  At this time, the height of the lower surface of the vertical connecting plate 14 is the girder side.floorOhori 11, wife sidefloorThe height of the ceiling edge 22 is higher than the lower surface of the beam members such as the large beam 12 and the floor beam 13. Since it is like this, the ceiling material 21 attached to the lower surface of this ceiling field edge 22 is the girder side.floorOhori 11, wife sidefloorIt is provided immediately below the beam members such as the large beam 12 and the floor beam 13. That is, the ceiling material 21 is attached to substantially the same height as the case where the ceiling material 21 is directly attached to a conventional beam member.
[0043]
  Moreover, in the ceiling field edge 22, since the long side of the field-edge receiving material 223 having a rectangular cross section is vertical, the ceiling field edge 22 is difficult to bend. In addition, since the field material 221 is attached to the lower surface of the field edge receiving material 223 with the long side having a rectangular cross section being horizontal, the lower surface of the field material is widened, and the ceiling material 21 can be easily attached to this lower surface. In other words, it is a good ceiling edge that has less material than a large cross-section as a whole and that has almost the same performance as a ceiling edge that is made large.
[0044]
  6 is a lead mass weighing 3.38 kgVibration control weight (anti-vibration weight)And thisVibration control weight6 is attached to the upper surface of the field edge receiver 223 of the ceiling field edge 22. When the damping weight 6 is attached on the field edge receiver 223 in this way, the ceiling field edge 22 becomes heavy, the field edge receiver 223 becomes difficult to vibrate, and the heavy floor impact sound is reduced.
[0045]
  The building unit U2 on the second floor has a wall panel (not shown) erected around the floor panel 1. Further, the building unit U1 on the first floor has a wall panel erected around the same floor panel as the structure excluding the ceiling panel of the floor panel 1, and thus the description thereof is omitted. FIG. 1B shows the wall panel 7 of the building unit U1 on the first floor. In addition, the roof unit U3 may be a roof panel, but anyway, since it is not related to the floor structure, the description is omitted.
[0046]
  Next, the construction method and operation of the unit building U will be described. The building unit U1 on the first floor, the building unit U2 on the first floor, and the roof unit U3 are manufactured at the factory. A method for manufacturing the floor panel 1 of the second-floor building unit U2 at this time will be described. Girder-side floor beams 11 and 11 and wife-side floor beams 12 and 12 are framed in a rectangular shape, and floor beams 13, 13.. A vertical connecting plate 14 having a plate-like connecting bracket 5 attached to a substantially vertical side surface is attached to the beam 13 and the girder-side floor beam 11 or the floor beam 13 and the adjacent floor beam 13 to install the floor panel 1. The skeleton is manufactured.
[0047]
  On the other hand, the long edge of the field edge receiving material 223 having a rectangular cross section is made vertical, and a spacer 222 and a field edge material 221 are attached to the lower surface of the field edge receiving material 223 to produce the ceiling field edge 22. A horizontal piece 41 of the L-shaped connecting bracket 4 is attached to the upper surface of 223. The elastic vibration isolator 3 is sandwiched between the vertical piece 42 of the connection bracket 4 on the field edge receiver 223 side and the connection metal 5 on the vertical connection plate 14 side, so that the field edge receiver 223 is perpendicular to the vertical connection plate 14. The ceiling edge 22 is attached to the vertical connection plate 14 of the floor panel 1 in connection with the side surface 141. The elastic vibration isolator 3 is made of rubber having a dynamic spring constant of 5 to 300 N / mm.
[0048]
  At this time, the height of the lower surface of the vertical connecting plate 14 is set to the beam side.floorOhori 11, wife sidefloorIt is attached at a position that is higher than the lower surface of the beam members such as the large beam 12 and the floor beam 13 by the height of the ceiling edge 22. A floor material 15 is attached to the upper surface of a beam member such as a girder side floor beam 11, a wife side floor beam 12, a floor beam 13, and the ceiling material 21 is attached to the lower surface of the field material 221 of the ceiling field edge 22. Manufacturing.
[0049]
  In the floor panel 1 manufactured in this way, the ceiling member 21 attached to the lower surface of the ceiling edge 22 has the height of the lower surface of the vertical connecting plate 14 on the girder side.floorOhori 11, wife sidefloorIt is attached immediately below the beam members such as the large beam 12 and the floor beam 13. That is, the ceiling material 21 is attached to substantially the same height as the case where the ceiling material 21 is directly attached to a conventional beam member. Therefore, the unit building U incorporating the building unit using the floor panel 1 can have the same distance between the floor and the ceiling, even if the height is almost the same as the conventional building unit. A room with a good ceiling height can be formed, making it a comfortable building.
[0050]
  Further, in this way, the horizontal piece 41 of the L-shaped connecting metal fitting 4 is attached to the upper surface of the ceiling nose 22, and the plate-like connecting metal fitting 5 is attached to the substantially vertical side surface of the vertical connecting plate 14. Simply connecting the edge receiver 223 to the vertical side surface 141 of the vertical connection plate 14 by sandwiching the elastic vibration-proof material 3 between the vertical piece 42 of the side connection bracket 4 and the connection bracket 5 on the vertical connection plate 14 side. The ceiling edge 22 can be attached to the vertical connecting plate 14 of the floor panel 1 and is easy to construct.
[0051]
  The first-floor building unit U1, the second-floor building unit U2, the roof unit U3, etc. manufactured in this way are transported to the construction site, and on the construction site, the first-floor building unit is placed on the foundation 9 provided in advance. A unit building U is completed when U1 is installed, a building unit U2 on the second floor is installed thereon, a roof unit U3 is installed on the building units U1 and U2 on the top floor, and various finishings are performed.
[0052]
  In the unit building U completed in this way, elasticity is provided between the vertical piece 42 of the connection fitting 4 attached to the ceiling edge 22 and the plate-like attachment fitting 5 attached to the substantially vertical side surface of the vertical connection plate 14. The ceiling edge 22 is attached to the vertical connecting plate 14 with the anti-vibration material 3 interposed therebetween, and even if a person walks on the floor or drops an object to vibrate the floor, this vibration also causes heavy floor impact sound. Almost all lightweight floor impact sound is absorbed by the elastic vibration isolator 3 and is difficult to be transmitted to the ceiling edge 22, and the floor panel 1 is increased in rigidity by the vertical connecting plate 14 and the impact resistance of the floor panel 1 is improved. In addition, since the damping weight 6 is attached on the field edge receiver 223 and the field edge receiver 223 is difficult to vibrate, it has a structure that prevents vibrations several times, so it is extremely good. It is a building with a floor structure that has excellent anti-vibration properties
(Example 2)
  FIG. 4 shows another embodiment of the present invention, and is an explanatory view showing an attachment structure in which a ceiling edge is attached to a vertical connecting plate.
[0053]
  Compared with Example 1 shown in FIGS. 1 to 3 in Example 2 shown in FIG. 4, the attachment structure in which the ceiling edge 22a is attached to the vertical connecting plate 14a is different. That is, the horizontal piece 41a of the L-shaped connecting bracket (ceiling field edge side connecting metal fitting) 4a is attached to the upper surface of the field edge receiver 223a, and the vertical piece 42a of the connecting metal fitting 4a on the field edge receiver 223a side and the vertical connecting plate 14a. The ceiling edge 22a is attached to the vertical connection plate 14a of the floor panel 1a with the elastic vibration-proof material 3a sandwiched between the substantially vertical side wall 141a. In other words, in the first embodiment, the flat mounting plate is attached to the vertical connecting plate, but in this second embodiment, the elastic vibration isolator 3a is directly applied to the vertical connecting plate 14a without attaching the flat mounting plate. It is different that it is attached in contact. Since other structures and operations are substantially the same as those of the first embodiment, description thereof is omitted.
(Example 3)
  FIG. 5 shows another embodiment of the present invention and is an explanatory view showing an attachment structure in which a ceiling edge is attached to a vertical connecting plate.
[0054]
  Compared with Example 1 shown in FIGS. 1 to 3 in Example 3 shown in FIG. 5, the attachment structure in which the ceiling edge 22b is attached to the vertical connecting plate 14b is different. That is, the lower horizontal piece 41b of the Z-shaped connecting bracket (ceiling field-edge-side connecting bracket) 4b is attached to the upper surface of the field receiver 223b. In addition, this connection metal fitting 4b is formed in Z shape by the lower horizontal piece which is a ceiling field edge side attaching part, an upper horizontal piece, and a vertical piece. Further, a vertical piece 52b of an L-shaped connecting fitting (vertical connecting plate side connecting fitting) 5b is attached to a substantially vertical side surface of the vertical connecting member 14b, and an elastic vibration isolator 3b is attached to the upper surface of the horizontal piece 51b. .
[0055]
  The elastic vibration isolator 3b is sandwiched between the upper horizontal piece 43b of the connection fitting 4b on the side edge receiver 223b side and the horizontal piece 51b of the connection fitting 5b on the vertical connection member 14b side. The upper horizontal piece 43b of the connecting fitting 4b is placed on the horizontal piece 51b of the connecting fitting 5b on the vertical connecting plate 14b side, and the ceiling edge 22b is attached to the vertical connecting plate 14b of the floor panel 1b. Other structures and functions are elasticAnti-vibrationBy using an elastic vibration-proof material in the compression direction as compared with Example 1 in which the material is a shear vibration-proof material in the shear direction.Anti-vibrationSince the performance is almost the same as in Example 1 except for the factory, the description is omitted.
Example 4
  FIG. 6 shows still another embodiment of the present invention and is an explanatory view showing an attachment structure in which a ceiling field edge is attached to a vertical connecting plate. 6 is different from the first embodiment shown in FIGS. 1 to 3 in the mounting structure in which the ceiling edge 22c is attached to the vertical connecting plate 14c. That is, a Z-shaped connecting bracket (ceiling field edge side connecting metal fitting) 4c lower horizontal single ceiling field edge side mounting portion) 41c is attached to the upper surface of the field receiver 223c, and the elastic vibration isolator 3c is attached to the lower surface of the upper horizontal piece 43c. Is attached.
[0056]
  Further, the vertical piece 52c of the L-shaped connecting metal fitting 5c is attached to the substantially vertical side surface of the vertical connecting member 14c. The elastic vibration isolator 3c is sandwiched between the upper horizontal piece 43c of the connection fitting 4c on the side edge receiver 223c side and the horizontal piece 51c of the connection fitting 5c on the vertical connection member 14c side, The upper horizontal piece 43c of the connecting fitting 4c is placed on the horizontal piece 51c of the connecting fitting 5c on the vertical connecting plate 14c side, and the ceiling edge 22c is attached to the vertical connecting plate 14c of the floor panel 1c. Since other structures and operations are substantially the same as those of the third embodiment, description thereof is omitted.
[0057]
  Although the present invention has been described based on the embodiment, the present invention is not limited to this embodiment, and changes to the extent not departing from the gist of the present invention are included in the present invention. For example, a floor damping sheet may be attached, or the floor structure of the present invention and floor floor joists, flooring, and flooring to improve the sound insulation performance of the floor that seals the air as a whole The floor sound insulation performance may be improved. Moreover, you may apply to buildings other than a unit building.
[0058]
【The invention's effect】
  The invention according to claim 1 is substantially parallel.Between the floor girder and the floor beam and between the floor beamsA vertical connecting plate is attached and attached, and the ceiling nose is attached to the vertical connecting plate with an elastic vibration-proof material sandwiched between the almost vertical side surface of the vertical connecting plate and the nose of the ceiling. Even if a person walks on the floor or drops an object and the floor vibrates, this vibration is absorbed almost completely by the elastic vibration isolator, and it is difficult to transmit to the ceiling edge. It is a floor structure with very good vibration and sound insulation, and a floor structure that is easy to construct.
[0059]
  Further, since the ceiling field edge is attached to the substantially vertical side surface of the vertical connecting plate, the ceiling material can be attached at substantially the same height as the case where the ceiling material is directly attached to the conventional beam member. Therefore, there is no problem even if this floor structure is applied to a unit building. In other words, building units equipped with this floor structure can be transported at the same height as before, and unit buildings incorporating building units using floor panels of this floor structure have the same distance between the floor and the ceiling as before. It becomes a building with good habitability. In addition, since the vertical connecting plate is mounted between the substantially parallel beam members, the beam members do not fall down, and at the same time, the connection between the beam members can be strengthened and the rigidity of the floor can be increased. In particular, the impact resistance of the floor against heavy floor impact sound is improved and vibration is difficult.
[0060]
  The invention according to claim 2 is substantially parallel.Between the floor girder and the floor beam and between the floor beamsA vertical connecting plate is inserted and attached, and the ceiling nose side mounting part of the ceiling nose side connecting fitting is attached to the ceiling nose, and the vertical piece and the vertical connecting plate of the ceiling nose side connecting fitting attached to this ceiling nose Because the ceiling edge is attached to the vertical connecting plate with elastic vibration isolator between the almost vertical side of the floor, even if a person walks on the floor or drops an object, the floor vibrates, This vibration is almost completely absorbed by the elastic vibration isolator, and the floor structure has extremely good vibration and sound insulation properties. The floor structure is easy to do.
[0061]
  Further, similarly to the first aspect of the invention, since the ceiling field edge is attached to the substantially vertical side surface of the vertical connecting plate, the ceiling material is almost the same height as the case where the ceiling material is directly attached to the conventional beam member. Can be attached. Therefore, there is no problem even if this floor structure is applied to a unit building. In other words, building units equipped with this floor structure can be transported at the same height as before, and unit buildings incorporating building units using floor panels of this floor structure have the same distance between the floor and the ceiling as before. It becomes a building with good habitability. Moreover, by passing the vertical connecting plate between the substantially parallel beam members, the beam members will not fall down, and at the same time, the connection between the beam members can be strengthened, and the rigidity of the floor is increased. The impact resistance of the floor against heavy floor impact sound is improved, and vibration is difficult.
[0062]
  In invention of Claim 3, it is substantially parallelBetween the floor girder and the floor beam and between the floor beamsA vertical connecting plate is inserted and attached, and a vertical piece of an L-shaped vertical connecting plate side fitting is attached to a substantially vertical side surface of the vertical connecting plate, and the ceiling nose side of the ceiling nose side fitting is attached to the ceiling nose. Elastic vibration isolation between the upper surface of the horizontal piece of the vertical connecting plate side fittings attached to the vertical connecting plate and the upper surface of the upper horizontal piece of the Z-shaped fitting attached to the ceiling edge. Because the ceiling edge is attached to the vertical connecting plate with the material in between, even if a person walks on the floor or drops an object to vibrate the floor, this vibration will cause heavy floor impact sound and light floor impact. Almost all of the sound is absorbed by the elastic vibration-proof material, and is difficult to be transmitted to the edge of the ceiling. The floor structure has extremely good vibration-proof properties and is easy to construct.
[0063]
  Further, similarly to the first aspect of the invention, since the ceiling field edge is attached to the substantially vertical side surface of the vertical connecting plate, the ceiling material is almost the same height as the case where the ceiling material is directly attached to the conventional beam member. Can be attached. Therefore, there is no problem even if this floor structure is applied to a unit building. In other words, building units equipped with this floor structure can be transported at the same height as before, and unit buildings incorporating building units using floor panels of this floor structure have the same distance between the floor and the ceiling as before. It becomes a building with good habitability. Also, by attaching a vertical connecting plate between almost parallel beam members, the beam members can be prevented from falling down, and at the same time, the connection between the beam members can be strengthened, and the rigidity of the floor is increased. The impact resistance of the floor against the floor impact sound is improved and vibration is less likely.
[0064]
  The invention according to claim 4 is composed of a long edge receiving material having a rectangular cross section and a long edge having a rectangular cross section, and a long side having a rectangular cross section is vertical. Since the field edge material is connected to the lower surface of the field edge receiving material with the long side of the rectangular shape of the field edge material being horizontal, the ceiling field edge is difficult to bend and the ceiling material is easy to attach.
[0065]
  In the fifth aspect of the present invention, since the damping weight is attached to the ceiling edge, the beam member vibrates when a person walks on the floor or drops an object on the floor. However, it becomes difficult for the field receiver attached via the elastic vibration isolator to vibrate.
[0066]
  Since the floor structure according to any one of claims 1 to 5 is provided, the invention according to claim 6 becomes a unit building having good sound insulation performance while ensuring a sufficient ceiling height of the living room.
[Brief description of the drawings]
FIG. 1 shows an embodiment in which the floor structure of the present invention is applied to a unit building. FIG. 1 (a) is a partially cutaway explanatory view showing a state in which a part of a floor panel is removed, and FIG. It is sectional drawing in the AA of (A) when a floor panel is attached on the wall panel of a lower floor.
2A is a plan view of a floor panel from which flooring is removed, FIG. 2B is a cross-sectional view taken along line BB in FIG. 2B, and FIG. 2C is a cross-sectional view taken along line CC in FIG. It is.
FIG. 3 is an explanatory diagram showing a unit building.
FIG. 4 is an explanatory view showing a mounting structure in which a ceiling field edge is attached to a vertical connecting plate according to another embodiment of the present invention.
FIG. 5 shows another embodiment of the present invention, and is an explanatory view showing an attachment structure in which a ceiling field edge is attached to a vertical connecting plate.
FIG. 6 is a view showing still another embodiment of the present invention, and is an explanatory view showing an attachment structure in which a ceiling field edge is attached to a vertical connecting plate.
FIG. 7 is an explanatory diagram showing a conventional floor structure.
[Explanation of symbols]
1 Floor panel
11 Girder floor girder
12 Wife side floor girder
13 Floor beam
14, 14a, 14b, 14c Vertical connecting plate
15 Flooring
21 Ceiling material
22, 22a, 22b, 22c
221 Field material
222 spacer
223, 223a, 223b, 223c
3, 3a, 3b, 3c Elastic vibration isolator
4,4a Connecting bracket
41, 41a Horizontal piece
4b, 4c connecting bracket
41b, 41c Lower horizontal piece
43b, 43c Upper horizontal piece
42, 42a Vertical piece
5 Connecting bracket
5b, 5c connecting bracket
51b, 51c Horizontal piece
52b, 52c Vertical piece

Claims

A pair of floor beams, a plurality of floor beams arranged between the pair of floor beams approximately in parallel and at equal intervals, and floor materials attached to the upper surfaces of the floor beams and floor beams A floor structure comprising a floor composed of a ceiling ceiling and a ceiling on a lower floor composed of a ceiling material attached to a lower surface of the ceiling field margin,
A vertical connecting plate is inserted and attached between the floor beam and the floor beam, and the height of the lower surface of the vertical connecting plate is higher than the lower surface of the floor beam. It is provided at a higher position, and the ceiling field edge is attached to the vertical connection board with an elastic vibration-proof material sandwiched between the substantially vertical side surface of the vertical connection board and the ceiling field edge. Floor structure.

A pair of floor beams, a plurality of floor beams arranged between the pair of floor beams approximately in parallel and at equal intervals, and floor materials attached to the upper surfaces of the floor beams and floor beams A floor structure comprising a floor composed of a ceiling ceiling and a ceiling on a lower floor composed of a ceiling material attached to a lower surface of the ceiling field margin,
A vertical connecting plate is inserted and attached between the floor beam and the floor beam, and the height of the lower surface of the vertical connecting plate is higher than the lower surface of the floor beam. provided only higher position is, the ceiling ceiling joist ceiling field edge attachment portion of the ceiling field edge connecting fitting is attached to the substantially vertical piece and vertical coupling plate of the ceiling field edge connecting fitting which is attached to the ceiling ceiling joist A floor structure characterized in that a ceiling nose is attached to a vertical connecting plate with an elastic vibration-proofing material sandwiched between vertical sides.

A pair of floor beams, a plurality of floor beams arranged between the pair of floor beams approximately in parallel and at equal intervals, and floor materials attached to the upper surfaces of the floor beams and floor beams A floor structure comprising a floor composed of a ceiling ceiling and a ceiling on a lower floor composed of a ceiling material attached to a lower surface of the ceiling field margin,
A vertical connecting plate is inserted and attached between the floor beam and the floor beam, and the height of the lower surface of the vertical connecting plate is higher than the lower surface of the floor beam. provided only high position is, the substantially vertical sides of the vertical connecting plates perpendicular block of the vertical connecting plate-side connection fitting is mounted, the ceiling field edge attachment portion of the ceiling field edge connecting fitting is attached to the ceiling ceiling joist An elastic vibration-proof material is sandwiched between the upper surface of the horizontal piece of the vertical connecting plate-side connecting fitting attached to the vertical connecting plate and the lower surface of the upper horizontal piece of the ceiling nose-side connecting fitting attached to the ceiling nose. A floor structure characterized in that the edge is attached to a vertical connecting plate.

The ceiling field edge is composed of a long-shaped field edge receiving material having a rectangular cross-section and a long-shaped field edge material having a rectangular cross-sectional shape. The floor structure according to any one of claims 1 to 3, wherein the field edge material is connected with the long sides of the field edge material having a rectangular section in the horizontal direction.

The floor structure according to any one of claims 1 to 4, wherein a damping weight is attached to the edge of the ceiling.

A unit building comprising the floor structure according to any one of claims 1 to 5.