1277686 (1) 九、發明說明 【發明所屬之技術領域】 本發明是涉及住宅等建築構造物的地板及 【先前技術】 具有金屬棒材製骨架的地板構造或木材骨架 鲁造的兩層以上的建築物中，因爲在上層地板上的 躍、物體的落下等，導致對下層造成衝擊聲音的 該衝擊聲音稱爲地板衝擊聲音，以JIS規格 定方法及評估方法。並且，地板衝擊聲音有兒童 重量物落下等起因的重量地板衝擊聲音，及湯匙 落下爲起因的輕量地板衝擊聲音。一般，前者ί 帶寬（1/1倍頻程帶寬）等低頻域的聲音， 2 5 0〜5 00Hz帶寬（1/1倍頻程帶寬）等中〜高頻域 鲁主成份，該等帶域的成份決定L等級（JIS規格 地板衝擊聲音遮蔽性能等級的稱呼）。 在地板構造的開發中，降低此一地板衝擊聲 大的課題。而地板衝擊聲音是以：（a)因施加 板的衝擊力使得上層地板震動，（b)其地板震 下層的天花板、壁面，（c)從其天花板、壁面 聲音放射到下層室內，的機制產生。並且’ 的傳送路徑大致有固定傳送和空氣傳送的2種。 衝擊聲音在地板加工材下工夫可以容易降低地才 花板構造 丨的地板構 步行或跳 問題。 ，來決定測 跳躍等的 等輕量物 & 以 63Hz 後者是以 :的聲音爲 所規定的 音構成極 在上層地 動傳送到 的震動將 •)的震動 輕量地板 反震動（a -5- (2) 1277686 )，因此對策上比較容易。另一方面，重量地板衝擊聲音 室在地板、天花板、壁面的構造變更等，必須要大費周章 的對策，而導致造成大的技術課題。 爲了降低上述重量地板衝擊聲音，雖然採取以防振支 撐地板，並使得天花板不從地板上垂吊的對策。上述機制 的傳送路徑（b)中，固體傳送比空氣傳送明顯較大時， 根據此一對策可獲得大的效果。 【發明內容】 但是，對策前的構造中，空氣傳送明顯大於固體傳送 時，該對策不具效果，而必須要有降低空氣傳送成份的對 策。並且，在對策前的構造中，即使固體傳送明顯大於空 氣縳送時，可以本對策來降低地板剛性，藉此使地板震動 比對策前更爲增大，其結果會導致空氣傳送成份的增大， 不能獲得充分的對策效果，或者利用本對策使得固體傳送 • 成份降低，但是同樣在提昇性能上，仍必須要有降低空氣 傳送成份的對策。 因此，本發明是以降低空氣傳送成份來降低重量地板 衝擊聲音爲目的。1277686 (1) EMBODIMENT OF THE INVENTION [Technical Field] The present invention relates to a floor structure of a building structure such as a house, and [previous art] two or more layers of a floor structure or a wood frame having a metal bar skeleton In the building, the impact sound that causes an impact sound to the lower layer due to a jump on the upper floor, an object falling, or the like is called a floor impact sound, and a JIS specification method and an evaluation method are used. In addition, the floor impact sound has the weight of the floor impact sound caused by the falling of the child's weight, and the lightweight floor impact sound caused by the drop of the spoon. In general, the former ί bandwidth (1/1 octave bandwidth) and other low-frequency domain sounds, 2 5 0~500 Hz bandwidth (1/1 octave bandwidth) and other medium-high frequency domain Lu main components, these bands The composition determines the grade of the L grade (JIS specification floor impact sound shading performance grade). In the development of the floor structure, the problem of the impact of this floor is greatly reduced. The floor impact sound is: (a) the upper floor is vibrated by the impact of the applied plate, (b) the ceiling and wall of the floor, and (c) the radiation from the ceiling and wall to the lower room. . And the transmission path of 'there is basically two types of fixed transmission and air transmission. The impact sound can be easily reduced under the floor processing material, the flower board structure, the floor structure of the floor, the walking or jumping problem. In order to determine the speed of the jump, etc., etc., at 63 Hz, the latter is the vibration of the specified sound, which constitutes the vibration transmitted by the pole in the upper layer. • The vibration of the lightweight floor anti-vibration (a -5- (2) 1277686), so the countermeasures are relatively easy. On the other hand, changes in the structure of the floor, ceiling, and wall of the weight floor impact sound room require a lot of measures, resulting in a large technical problem. In order to reduce the above-mentioned weight floor impact sound, measures are taken to prevent the vibration from supporting the floor and to prevent the ceiling from hanging from the floor. In the transmission path (b) of the above mechanism, when the solid transport is significantly larger than the air transport, a large effect can be obtained according to this countermeasure. SUMMARY OF THE INVENTION However, in the pre-measurement configuration, when the air transfer is significantly larger than the solid transport, the countermeasure is not effective, and there is a need to reduce the air transport component. Moreover, in the structure before the countermeasure, even if the solid conveyance is significantly larger than the air confinement, the countermeasure can be used to reduce the rigidity of the floor, thereby increasing the floor vibration more than before the countermeasure, and as a result, the air transport component is increased. It is not possible to obtain sufficient countermeasure effects, or to use this measure to reduce solids transport and composition, but it is also necessary to have measures to reduce air transport components in terms of improving performance. Therefore, the present invention has the object of reducing the air transporting component to reduce the weight of the floor impact sound.
本發明人爲了達成上述目的，在具有C形軋製鋼的大 樑（端桁樑、側桁樑）、小樑（地板桁樑）及構造用合板 的地面板所構成的地板構造的住宅中，根據JIS規格測定 重量地板衝擊聲音。其結果，如第8圖表示，可確認低頻 域（第8圖中，63Hz倍頻程帶寬）的衝擊聲音位準決定L (3) 1277686 等級。並且，針對該低頻域可藉實驗詳細地調 構造及下層天花板構造的震動變形。 調查的結果，衝擊力作用時的地板構造及 的變形是例如第9(a)圖及第9(b)圖表示 ，該等的彎曲變形主要是發生在地板構造的弱 中，弱軸方向是和矩形地板構造的各邊平行的 之中，彎曲剛性小的方向。亦即，較低頻率產 • 振模式的方向。以上的地板一天花板構造中， 花板間的空氣壓的強弱同樣主要是沿著地板構 向分布。因此，天花板構造在弱軸方向受到具 的空氣壓產生的力，和地板構造同樣地，在弱 變形。從該調查的結果，發明人發現形成地板 方向不易變形的天花板構造時，即可以降低重 聲音。 因此，本發明的地板一天花板構造，其特 # :具有彼此大致呈平行排列配置的複數的第1 置在上述第1樑材上方的第1板材的地板構造 彼此大致呈平行排列配置的複數的第2樑材、 述第2樑材下方的第2板材的天花板構造，上 的排列方向和上述第2樑材的排列方向不同。 根據以上的構成，由於第1樑材的排列方 構造的彎曲剛性小的方向和第2樑材的排列方 板構造的彎曲剛性小的方向不一致，根據第1 板材之間空氣的震動不易激起第2板材的震動 查上層地板 天花板構造 呈彎曲變形 軸方向。其 正交2方向 生高次的共 地面板-天 造的弱軸方 有強弱分布 軸方向彎曲 構造的弱軸 量地板衝擊 徵爲，具備 樑材、及配 ;以及具有 及配置在上 述第1樑材 向，即地板 向，即天花 板材和第2 。因此，可 (4) 1277686 以降低重量地板衝擊聲音。並且，只需變更原來所須構件 的配置方向即可降低重量地板衝擊聲音，不會增加材料及 施工成本。 本發明的地板-天花板構造，其特徵爲，具備：具有 俯視呈大致長方形的形狀且以具有短邊方向排列配置的複 數個面板構造材、及配置在上述面板構造材上方的第1板 材的地板構造；以及具有彼此大致呈平行排列配置的複數 • 的第2樑材、及配置在上述第2樑材下方的第2板材的天 花板構造，上述面板構造材的短邊方向和上述第2樑材的 排列方向不同。 根據以上的構成，由於面板構造材的短邊方向，即地 板構造的彎曲剛性小的方向和第2樑材的排列方向，即天 花板構造的彎曲剛性小的方向不一致，根據第1板材和第 2板材之間空氣的震動不易激起第2板材的震動。因此， 可以降低重量地板衝擊聲音。並且，只需變更原來所須構 # 件的配置方向即可降低重量地板衝擊聲音，不會增加材料 及施工成本。 本發明的地板-天花板構造中，上述第1樑材的排歹IJ 方向或上述面板構造材的短邊方向和上述第2樑材的排列 方向也可以大致呈正交。 根據以上的構成，可確實地降低重量地板衝擊聲音。 另外，本發明的地板-天花板構造中，上述第1樑材 的排列方向或上述面板構造材的短邊方向和上述第2樑材 的長邊方向也可形成大致一致。 -8- (5) 1277686 根據以上的構成，也可以確實地降低重量地板衝擊聲 音。 本發明的地板-天花板構造中’也可以在上述地板構 造和上述天花板構造之間設置防震機構。 根據以上的構成，可確實地降低重量地板衝擊聲音。 【實施方式】 • 以下，針對本發明的適當實施型態，參照圖面說明。 第1圖是表示具有本發明實施型態所涉及地板-天花板構 造的建造住宅的外觀透視圖的圖。第2圖爲地板構造的上 視圖，第3圖爲天花板構造的上視圖。第4圖是表示地板 構造及天花板構造的配置方向的圖。第5圖是表示地板構 造及天花板構造的層疊狀態的圖。 建戶住宅1爲2層樓建築的構造，具有下層的房間2 (以下，稱「下層2」）和上層的房間3 (以下，稱「上 # 層3」）。其中在下層2及上層3的下端部，設有跨其全 面的地板構造10，其上端部設有跨其全面的天花板構造 20。因此，下層2和上層3之間設置層疊有上層3的地板 構造10和下層2的天花板構造20所構成的床-天花板構 造50。 地板構造10是如第2圖表示，具有：將金屬棒材製 的大樑組裝成矩形的框體12;構成框體12的大樑11之中 ，平行配置結合相對的大樑間的金屬棒材製的4根小樑13 ;及接合在大樑1 1及小樑1 3上面的地面板14。其中，地 -9- (6) 1277686 板構造1 0的彎曲剛性形成在小樑1 3的縱長方向（ 中的左右方向）較強，而和小樑13的縱長方向垂 向，即小樑13的排列方向（第2圖中的上下方向 弱。 地面板1 4爲具有預定厚度的矩形的板狀構件 碎料板、構造用合板等的木質板。大樑1 1及小樑： 5圖表示，大約1mm左右的鋼製薄形棒材，彎曲呈 • 字型的剖面。並且，大樑1 1及小樑13的剖面也可 呈3字型，也可以是空心棒材。又，大樑1 1及小榜 可以木角材。並且，大樑1 1及小樑13的兩端面（ 中的上端面及下端面）是形成平面，其一端面（第 的上端面）被接合在地板14的下面。 天花板構造20如第3圖表示，具有平行配置| 樑21，及接合在樑21的下面的天花板22。其中， 構造20的彎曲剛性形成在樑21的縱長方向（第3 • 上下方向）較強，而和樑21的縱長方向垂直的方 樑2 1的排列方向（第3圖中的左右方向）則較弱。 天花板22爲具有預定厚度的矩形的板狀構件 石膏板。樑21和地板構造1 0的大樑1 1及小樑1 3 大約1mm左右的鋼製薄形棒材，彎曲成大致具有 的剖面。並且，樑21的剖面也可以呈3字型，也 空心棒材。又，樑21也可以木角材。並且，樑21 面（第5圖中的上端面及下端面）是形成平面，其 (第5圖中的下端面）被接合在天花板22的下面。 第2圖 直的方 )則較 ，例如 13如第 大致C 以大致 廷13也 第5圖 5圖中 的5根 天花板 圖中的 向，即 ，例如 同樣， C字型 可以是 的兩端 一端面 -10- (7) 1277686 第5 ( a )圖是沿著天花板構造2 0的樑2 1的方向的剖 面圖，第5 ( b )圖是沿著地板構造1 〇的樑1 3的方向的剖 面圖。並且，地板構造10的大樑11如第5(a)圖表示， 其下端部被配置在下層2的下層壁25的上面。其中，地 板耩造1 〇的大樑1 1和下層2的下層壁2 5的上面之間設 有防震材30。其中，防震材30是例如將金屬製或樹脂製 的彈簧、橡膠或氨基甲酸酯等的樹脂成形爲板狀或塊狀等 # 。又，天花板構造20的樑21爲設置在下層2的下層壁25 內側面的承接材26所保持。 並且，地板構造10和天花板構造20如第4圖表示， 層疊使地板構造1 0的小樑1 3和天花板構造20的樑2 1成 正交。再者，第4圖僅圖示地板構造1 0的大樑1 1、小樑 13及天花板構造20的樑21。因此，使得地板構造10的 彎曲剛性小的方向（弱軸方向）和天花板構造20的彎曲 剛性小的方向（弱軸方向）正交。即，地板構造1 0的彎 • 曲剛性小的方向和天花板構造20的彎曲剛性大的方向一 致。 如以上說明，本實施型態的地板一天花板構造50中 ，由於地板構造10的小樑13的配置方向和天花板構造20 的天花板22所接合的樑21的配置方向呈正交，即地板構 造10的弱軸方向和天花板構造20的弱軸方向形成正交， 因此根據地面板14 -天花板22間的空氣的振動不易激起 天花板22的振動，可以降低重量地板衝擊聲音。又，地 板-天花板構造5 0中，只須變更原來所須構件的配置方 -11 - (8) J277686 向即可降低重量地板衝擊聲音，因此不會增加材料及施工 成本。 以上，雖針對本發明的一實施型態已作說明，但是本 發明不僅限於上述的實施型態，在申請專利範圍記載的範 圍內可施以種種的設計變更。例如，上述的實施型態中， 雖是在地板構造10的大樑11和下層2的下層壁25的上 面之間設置防震材30，但是也可以不使用防震材30，只 # 要地板振動大，具有支配性空氣傳送成分的地板-天花板 構造，即可獲得本發明的效果。 另外，上述的實施型態中，和地板構造1 0的小樑1 3 相同高度的大樑11雖是經防震材30配置在下層2的下層 壁25的上面，但是也可以如第6(a) 、（b)圖表示，將 接合在地板構造110的地面板114的小樑113支撐在較大 樑111高的位置上，其大樑111經由防震材130配置在下 層2的下層壁25的上面。 ® 並且，如第7(a) 、（b)圖表示，地板構造210也 可以具有平面方向呈大致長方形的形狀，以橫向排列配置 的複數個板構造材213所構成，也可以在該板構造材213 的上面接合地面板214的下面。再者，板構造材213例如 爲混擬土系的板等。其中，長方形而材料特性爲等向的板 時，一般板的橫向爲地板構造210的弱軸方向。並且，即 使採用以上的板構造材213時，如第7(a) 、（b)圖表 示，地板構造210的板構件213的橫向和天花板構造20 的樑2 1的配置方向，即，只要地板構造2 1 0的弱軸方向 -12- (9) 1277686 和天花板構造20的弱軸方向呈正交，和上述實施型態同 樣地，根據地面板2 1 4 -天花板22間空氣的振動不易激起 天花板22的振動，而可降低重量地板衝擊聲音。 另外，上述的實施型態中，地板構造1〇上配置有4 根的小樑1 3，在天花板構造20配置有5根的樑21，但是 也可以變更小樑13及樑21的數量。又，雖根據4根大樑 組裝成矩形的框體1 2，但是也可以變更框體1 2的形狀。 另外，上述的實施型態中，形成1個構件的防震材3 0 雖是設置在地板構造1 〇和天花板構造20之間，但是也可 以將複數個構件所構成的防震機構設置在地板構造和天花 板之間。 【圖式簡單說明】 第1圖是表示具有本發明實施型態所涉及地板-天花 板構造的骨架的建造住宅的外觀透視圖的圖。 第2圖爲第1圖的地板構造的上視圖。 第3圖爲第1圖的天花板構造的上視圖。 第4圖是表示地板構造及天花板構造的配置方向的圖 〇 第5(a) 、（b)圖是表示地板構造及天花板構造的 層疊狀態的圖。 第6(a) 、（b)圖是表示其他的地板構造及天花板 構造的層疊狀態的圖。 第7(a) 、（b)圖是表示其他的地板構造及天花板 -13- (10) 1277686 構造的層疊狀態的圖。 第8圖是表示重量地板衝擊聲音的測定結果的圖。 第9(a) 、（b)圖是表示衝擊力作用時的地板構造 及天花板構造的變形狀態的圖。 【主要元件符號說明】 1 :建造住宅 2 :下層房間（下層） 3 :上層房間（上層） 1 〇 :地板構造 1 1 :大樑 1 2 :框體 13 :小樑 1 4 :地面板 20 :天花板構造 21 :樑 22 :天花板 25 :下層壁 2 6 :承接材 3 0 :防震材 50 :地板-天花板構造 1 1 〇 :地板構造 1 1 1 :大樑 1 1 3 :小樑 -14- (11) (11)1277686In order to achieve the above object, the inventors of the present invention have a floor structure composed of a floor panel having a C-shaped rolled steel beam (end girders, side girders), girders (floor girders), and structural slabs, according to The JIS specification measures the weight of the floor impact sound. As a result, as shown in Fig. 8, it can be confirmed that the impact sound level in the low frequency range (Fig. 8, 63 Hz octave bandwidth) determines the L (3) 1277686 level. Moreover, for this low frequency domain, the vibration deformation of the structure and the underlying ceiling structure can be adjusted in detail by experiments. As a result of the investigation, the floor structure and the deformation at the time of the impact force are, for example, shown in Figs. 9(a) and 9(b), and the bending deformation mainly occurs in the weakness of the floor structure, and the weak axis direction is Among the parallel sides of the rectangular floor structure, the bending rigidity is small. That is, the direction of the lower frequency generator mode. In the above floor-ceiling structure, the strength of the air pressure between the panels is also mainly distributed along the floor structure. Therefore, the ceiling structure is subjected to a force generated by the air pressure in the weak axis direction, and is weakly deformed similarly to the floor structure. As a result of the investigation, the inventors found that when a ceiling structure in which the floor direction is not easily deformed is formed, the heavy sound can be reduced. Therefore, in the floor-ceiling structure of the present invention, the plurality of first floor members placed on the first beam member in a substantially parallel arrangement are arranged in a substantially parallel arrangement. In the ceiling structure of the second beam material and the second plate material below the second beam material, the arrangement direction of the second beam material is different from the arrangement direction of the second beam material. According to the above configuration, the direction in which the bending rigidity of the arranging structure of the first beam material is small and the direction in which the bending rigidity of the arranging square plate structure of the second beam material are small do not coincide with each other, and the vibration of the air between the first plates is less likely to be excited. The vibration of the second plate is checked in the upper floor and the ceiling structure is in the direction of the bending deformation axis. The common ground plane of the height of the two directions in the orthogonal direction - the weak axis of the day is made of the strong axis, and the weak axis amount of the curved structure of the axis is a beam impact, and is provided with a beam material and a distribution; The beam is oriented, that is, the floor is facing, that is, the ceiling material and the second. Therefore, (4) 1277686 can reduce the weight of the floor impact sound. Moreover, it is only necessary to change the configuration direction of the original components to reduce the weight of the floor impact sound without increasing the material and construction cost. The floor-ceiling structure of the present invention is characterized in that it includes a plurality of panel structures having a substantially rectangular shape in plan view and arranged in a short-side direction, and a floor of a first plate disposed above the panel structure. And a ceiling structure having a plurality of second beam members arranged substantially in parallel with each other and a second plate member disposed under the second beam member, a short side direction of the panel structure member and the second beam member The arrangement direction is different. According to the above configuration, the direction of the short side of the panel structure material, that is, the direction in which the bending rigidity of the floor structure is small and the direction in which the second beam members are arranged, that is, the direction in which the bending rigidity of the ceiling structure is small does not match, according to the first plate and the second plate. The vibration of the air between the plates does not easily provoke the vibration of the second plate. Therefore, the weight of the floor impact sound can be reduced. Moreover, it is only necessary to change the configuration direction of the original structure to reduce the weight of the floor impact sound without increasing the material and construction cost. In the floor-ceiling structure of the present invention, the direction of the drain IJ of the first beam member, the direction of the short side of the panel member, and the direction of the arrangement of the second beam may be substantially orthogonal. According to the above configuration, the weight of the floor impact sound can be reliably reduced. Further, in the floor-ceiling structure of the present invention, the arrangement direction of the first beam members or the short-side direction of the panel structure member and the longitudinal direction of the second beam member may be substantially identical. -8- (5) 1277686 According to the above configuration, the weight of the floor impact sound can be surely reduced. In the floor-ceiling structure of the present invention, an anti-vibration mechanism may be provided between the above-described floor structure and the above-described ceiling structure. According to the above configuration, the weight of the floor impact sound can be reliably reduced. [Embodiment] Hereinafter, a suitable embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing the appearance of a built house having a floor-ceiling structure according to an embodiment of the present invention. Fig. 2 is a top view of the floor structure, and Fig. 3 is a top view of the ceiling structure. Fig. 4 is a view showing an arrangement direction of a floor structure and a ceiling structure. Fig. 5 is a view showing a stacked state of a floor structure and a ceiling structure. The home building 1 is a two-story building structure, and has a lower floor room 2 (hereinafter referred to as "lower floor 2") and an upper floor room 3 (hereinafter referred to as "upper #层3"). In the lower end portions of the lower layer 2 and the upper layer 3, a floor structure 10 is provided across the entire surface thereof, and the upper end portion is provided with a ceiling structure 20 across it. Therefore, a bed-ceiling structure 50 composed of the floor structure 10 in which the upper layer 3 and the ceiling structure 20 of the lower layer 2 are laminated is provided between the lower layer 2 and the upper layer 3. As shown in Fig. 2, the floor structure 10 has a frame body 12 in which a girders made of metal bars are assembled into a rectangular shape, and a girders 11 constituting the frame body 12 are arranged in parallel with metal bars between the opposing girders. 4 trabes 13; and a floor panel 14 joined to the girders 1 1 and the girders 1 3 . Among them, the bending rigidity of the ground-9-(6) 1277686 plate structure 10 is formed in the longitudinal direction of the trabecular beam 13 (the horizontal direction in the middle), and is perpendicular to the longitudinal direction of the trabecular beam 13, that is, small The arrangement direction of the beams 13 (the vertical direction in the second drawing is weak. The floor panel 14 is a rectangular plate-shaped member particle board having a predetermined thickness, a wooden board such as a structural plywood, etc. The girders 1 1 and the girders: 5 It is shown that a thin steel bar of about 1 mm is bent in a cross section of a shape, and the cross section of the beam 11 and the beam 13 may be a three-dimensional shape or a hollow bar. 1 and the small list may be made of wood angles, and both end faces (the upper end face and the lower end face of the girders 1 1 and the girders 13) are formed into a plane, and one end face (the first upper end face) is joined to the underside of the floor panel 14. As shown in Fig. 3, the ceiling structure 20 has a parallel arrangement | a beam 21 and a ceiling 22 joined to the lower surface of the beam 21. The bending rigidity of the structure 20 is formed in the longitudinal direction of the beam 21 (the third • up and down direction). Strong, and the direction of the square beam 2 1 perpendicular to the longitudinal direction of the beam 21 (in FIG. 3) The left and right direction is weaker. The ceiling 22 is a rectangular plate-shaped member gypsum board having a predetermined thickness. The beam 21 and the beam structure 1 of the floor structure 10 and the beam 1 3 are thin steel bars of about 1 mm, bent. The cross section of the beam 21 may be a three-shaped cross-section, and may also be a hollow bar. Further, the beam 21 may also be a wood angle material, and the beam 21 surface (the upper end surface and the lower end surface in Fig. 5) The plane is formed, and the lower end surface (the lower end surface in Fig. 5) is joined to the lower surface of the ceiling 22. The second straight line is, for example, 13 as the approximate C, which is roughly the same as the 13th and 5th. The direction in the five ceiling plans, that is, for example, the C-shape can be both ends --10-(7) 1277686 The fifth (a) is in the direction of the beam 2 1 of the ceiling structure 20 In the cross-sectional view, the fifth (b) is a cross-sectional view in the direction of the beam 13 along the floor structure 1 。. Further, the girders 11 of the floor structure 10 are shown in Fig. 5(a), and the lower end portions thereof are disposed on the upper surface of the lower layer wall 25 of the lower layer 2. Among them, a shock-proof material 30 is provided between the girders 1 1 of the floor slab and the upper wall 2 5 of the lower layer 2. In the vibration-proof material 30, for example, a resin made of metal or resin, a resin such as rubber or urethane, or a block shape or the like is formed. Further, the beam 21 of the ceiling structure 20 is held by the receiving member 26 provided on the inner side surface of the lower wall 25 of the lower layer 2. Further, as shown in Fig. 4, the floor structure 10 and the ceiling structure 20 are stacked such that the girders 13 of the floor structure 10 and the beams 2 1 of the ceiling structure 20 are orthogonal. Further, Fig. 4 only shows the beam 11 of the floor structure 10, the trabe 13 and the beam 21 of the ceiling structure 20. Therefore, the direction in which the bending rigidity of the floor structure 10 is small (the weak axis direction) and the direction in which the bending rigidity of the ceiling structure 20 is small (the weak axis direction) are made orthogonal. That is, the direction in which the bending rigidity of the floor structure 10 is small is consistent with the direction in which the bending rigidity of the ceiling structure 20 is large. As described above, in the floor-ceiling structure 50 of the present embodiment, since the arrangement direction of the girders 13 of the floor structure 10 and the arrangement direction of the beams 21 joined by the ceiling 22 of the ceiling structure 20 are orthogonal, that is, the floor structure 10 The weak axis direction and the weak axis direction of the ceiling structure 20 are orthogonal to each other, so that the vibration of the ceiling 22 is less likely to be generated according to the vibration of the air between the floor panel 14 and the ceiling 22, and the weight of the floor impact sound can be reduced. Moreover, in the floor-ceiling structure 50, it is only necessary to change the arrangement of the original components -11 - (8) J277686 to reduce the weight of the floor impact sound, so that the material and construction cost are not increased. Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the claims. For example, in the above-described embodiment, the vibration-proof material 30 is provided between the girders 11 of the floor structure 10 and the upper surface of the lower wall 25 of the lower layer 2, but the vibration-proof material 30 may not be used, and only the floor vibration is large. The effect of the present invention can be obtained by a floor-ceiling structure having a dominant air transport component. Further, in the above-described embodiment, the girder 11 having the same height as the trabecular beam 13 of the floor structure 10 is disposed on the upper surface of the lower wall 25 of the lower layer 2 via the vibration-proof material 30, but may be as in the sixth (a) (b) shows that the girders 113 of the floor panel 114 joined to the floor structure 110 are supported at a position where the large beam 111 is high, and the girders 111 are disposed above the lower wall 25 of the lower layer 2 via the vibration-proof material 130. Further, as shown in the seventh (a) and (b), the floor structure 210 may have a substantially rectangular shape in the planar direction, and may be formed by a plurality of plate structural members 213 arranged in the lateral direction, or may be formed in the plate structure. The upper surface of the material 213 is joined to the underside of the floor panel 214. Further, the slab structural material 213 is, for example, a mixed earth-based plate or the like. In the case where the rectangular shape and the material property are the isotropic plates, the lateral direction of the general plate is the weak axis direction of the floor structure 210. Further, even when the above-described sheet structural member 213 is employed, as shown in the seventh (a) and (b), the lateral direction of the plate member 213 of the floor structure 210 and the arrangement direction of the beam 2 1 of the ceiling structure 20, that is, as long as the floor The weak axis direction -12-(9) 1277686 of the structure 2 10 0 and the weak axis direction of the ceiling structure 20 are orthogonal, and similarly to the above-described embodiment, the vibration of the air between the floor panel 2 1 4 - the ceiling 22 is not easily aroused. The vibration of the ceiling 22 can reduce the weight of the floor impact sound. Further, in the above-described embodiment, four girders 13 are disposed on the floor structure 1 and five beams 21 are disposed in the ceiling structure 20. However, the number of the trabes 13 and the beams 21 may be changed. Further, although the rectangular frame 1 2 is assembled from the four girders, the shape of the frame 1 2 may be changed. Further, in the above-described embodiment, the vibration-proof material 30 that forms one member is provided between the floor structure 1 and the ceiling structure 20. However, the anti-vibration mechanism composed of a plurality of members may be provided in the floor structure and Between the ceilings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the appearance of a construction house having a skeleton of a floor-ceiling panel structure according to an embodiment of the present invention. Fig. 2 is a top view of the floor structure of Fig. 1. Fig. 3 is a top view of the ceiling structure of Fig. 1. Fig. 4 is a view showing an arrangement direction of a floor structure and a ceiling structure. Figs. 5(a) and 5(b) are views showing a stacked state of a floor structure and a ceiling structure. Figs. 6(a) and 6(b) are views showing a stacked state of another floor structure and a ceiling structure. Fig. 7(a) and (b) are views showing a laminated state of another floor structure and a ceiling-13-(10) 1277686 structure. Fig. 8 is a view showing the measurement results of the weight floor impact sound. Figs. 9(a) and 9(b) are views showing a state of deformation of the floor structure and the ceiling structure when the impact force acts. [Explanation of main component symbols] 1 : Construction of house 2 : Lower room (lower floor) 3 : Upper floor (upper floor) 1 〇: Floor structure 1 1 : Beam 1 2 : Frame 13 : Beam 1 4 : Floor panel 20 : Ceiling Structure 21: Beam 22: Ceiling 25: Lower wall 2 6: Supporting material 3 0: Shockproof material 50: Floor-ceiling structure 1 1 〇: Floor structure 1 1 1 : Beam 1 1 3 : girders-14- (11) (11)1277686
1 1 4 :地面板 1 3 0 :防震材 2 1 0 :地板構造 2 1 3 :板構造材 2 1 4 :地板面 -15-1 1 4 : Floor panel 1 3 0 : Earthquake-proof material 2 1 0 : Floor structure 2 1 3 : Plate structure material 2 1 4 : Floor surface -15-