JPH01304266A - Floor structure for concrete building - Google Patents
Floor structure for concrete buildingInfo
- Publication number
- JPH01304266A JPH01304266A JP13224688A JP13224688A JPH01304266A JP H01304266 A JPH01304266 A JP H01304266A JP 13224688 A JP13224688 A JP 13224688A JP 13224688 A JP13224688 A JP 13224688A JP H01304266 A JPH01304266 A JP H01304266A
- Authority
- JP
- Japan
- Prior art keywords
- floor
- floor structure
- concrete
- space
- flooring material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 95
- 239000004033 plastic Substances 0.000 claims abstract description 31
- 229920003023 plastic Polymers 0.000 claims abstract description 31
- 125000006850 spacer group Chemical group 0.000 claims abstract description 20
- 238000009408 flooring Methods 0.000 claims description 38
- 239000002699 waste material Substances 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000011800 void material Substances 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 13
- 230000001070 adhesive effect Effects 0.000 abstract description 13
- 239000011083 cement mortar Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 14
- 239000004570 mortar (masonry) Substances 0.000 description 8
- 229920006248 expandable polystyrene Polymers 0.000 description 7
- 239000006260 foam Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011120 plywood Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002984 plastic foam Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000013518 molded foam Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011414 polymer cement Substances 0.000 description 1
- -1 polypropylene, propylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Landscapes
- Floor Finish (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はコンクＩＪ ）建築物の床構造において用い
られる衝撃音及び空気伝播音の騒音の遮断性に優れた床
下地材及びそれを用いたコンクリート建築物の床構造に
関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a floor underlayment material excellent in blocking noise of impact sound and airborne sound used in the floor structure of a building, and a subfloor material using the same. It concerns the floor structure of concrete buildings.
従来、コンクリート建築物の床構造としては、一般に第
７図ないし第９図に示す構造のものなどが良く知られて
いる。これらのうち第７図は従来の洋室の床構造を示し
、第８図（イ）、（ロ）、（−）及び（ニ）はそれぞれ
第９図におけるユニット床下地材の平面図、裏面図、正
面図及び側面図を示す。BACKGROUND ART Conventionally, structures such as those shown in FIGS. 7 to 9 are well known as floor structures for concrete buildings. Of these, Figure 7 shows the floor structure of a conventional Western-style room, and Figures 8 (a), (b), (-), and (d) are a plan view and a back view of the unit flooring material in Figure 9, respectively. , showing a front view and a side view.
また、第９図は第７図においてコンクリートスラブに塗
布された接合材の床下地材との接着部の分布状態を示す
図である。Further, FIG. 9 is a diagram showing the distribution of bonding parts between the bonding material applied to the concrete slab and the subfloor material in FIG. 7.
このような床構造は、コンクリートスラブＳと、そのス
ラブＳの上にほぼ一定の間隔を置いて島状に塗布した接
合材Ｍと、その接合材Ｍの上に接着材により前記コンク
リートスラブＳＫ一体に敷設した発泡プラスチックス族
の床下地材Ｂと、更にその上に張設した床仕上材Ｆとか
ら構成されている。Such a floor structure consists of a concrete slab S, a bonding material M applied on the slab S in the form of islands at approximately constant intervals, and a bonding material M that is bonded to the concrete slab SK by an adhesive. The floor covering material B is made of foamed plastics, and the floor covering material F is placed on top of it.
上記接合材Ｍは、通常はモルタル団子と接着剤からなり
、最初接着剤をコンクリートスラブに塗り、その上にモ
ルタル団子を置き、さらにその頂部に当る床下地材Ｂの
裏面に接着剤を塗って施工している。また、モルタル団
子の代妙に空線モルタルを用いることもある。床下地材
Ｂは、第８図の（イ）〜（ニ）に示すようなユニット床
下地材Ｂを合法りによって敷き並べたものである。この
床下地材Ｂは、例えば厚さ６５順、幅６００ ｔｒｒｒ
ａ、長さ９００■の単位板であって、表側には４５０■
間隔で床仕上材張設用の枝木１が埋設してあり、裏側に
は配管用の配管溝２が縦横に設けである。床仕上材Ｆは
木質系の床板で、釘打ちによって張設するのが一般であ
る。The above bonding material M usually consists of mortar balls and adhesive. First, the adhesive is applied to the concrete slab, the mortar balls are placed on top of that, and then the adhesive is applied to the back side of the subfloor material B, which is the top of the adhesive. Under construction. Also, empty wire mortar is sometimes used for mortar dango. The floor base material B is made by laying unit floor base materials B as shown in (a) to (d) in FIG. 8 in a row. This flooring material B has, for example, a thickness of 65 and a width of 600 trrr.
a. It is a unit plate with a length of 900 cm, and the front side has a length of 450 cm.
Branches 1 for laying floor covering materials are buried at intervals, and piping grooves 2 for piping are provided vertically and horizontally on the back side. The floor finishing material F is a wooden floor board, and is generally installed by nailing.
島状に塗布した接合材Ｍの間隔は、第９図に示すように
通常は上記ユニット床下地材Ｂｔ’６れば、その１枚当
りのモルタル団子、すなわち島の数は１６〜２０個であ
る（実開昭５３−３８２１９号、特開昭５９−６８４６
９号、特開昭５９−６８４７０号）。As shown in Fig. 9, the intervals between the bonding materials M applied in the form of islands are usually 16 to 20 if the unit flooring material Bt'6 is used, and the number of mortar balls, or islands, per sheet is 16 to 20. Yes (Utility Model Publication No. 53-38219, Japanese Patent Application Publication No. 59-6846)
No. 9, Japanese Patent Publication No. 59-68470).
このようなコンクリート床構造は、その断熱性、暖かを
、歩行の快適さ、安全性の面や配管の施工が容易である
等で優れているが、遮音性能、特に木質系仕上材の場合
の軽量衝撃音に対する遮音性能が悪いという欠点がある
。This kind of concrete floor structure is excellent in terms of insulation, warmth, walking comfort, safety, and ease of piping construction, but it has poor sound insulation performance, especially in the case of wood-based finishing materials. The drawback is that the sound insulation performance against light impact noise is poor.
このため、上階の木質系仕上の床で発生する椅子や、物
の落下管による衝撃音が下階の住人にうるさく感じ、苦
情やトラブルがしばしば発生している。For this reason, the impact noise generated by chairs and falling pipes on the wooden floor on the upper floor is perceived as noisy by residents on the lower floor, often causing complaints and troubles.
このようなコンクリート床構造の遮音性能の悪さは、木
質系床材が半硬質の発泡プラスチック床下地材とモルタ
ル等の接合材とを通してコンクリートスラブに一体化さ
れているため、硬い木質系床材表面で発生する衝撃音が
大きくなり、下階に伝播されやすいことによると考えら
れる。The reason for the poor sound insulation performance of concrete floor structures is that the wooden flooring is integrated into the concrete slab through a semi-rigid foamed plastic flooring material and a bonding material such as mortar. This is thought to be due to the fact that the impact noise generated in the building becomes louder and is more likely to propagate to the lower floors.
この遮音性能レベルを確認するために、ＪＩＳＡ−１４
１８−１９７８に準拠して測定を行なった軽量衝撃音に
対する遮音性能（Ｌｔ値）を表−２に示す。In order to confirm this sound insulation performance level, JISA-14
Table 2 shows the sound insulation performance (Lt value) against light impact sound, which was measured in accordance with 18-1978.
表−２の測定結果から理解されるように、従来の半硬質
の発泡プラスチック製床下地材を用いた床構造（ＩＤの
ＬＬ値は７０で、参考のために測定した採尿（１）のＬ
Ｌ値８０よりは良好であるが、望ましいとされている遮
音性能レベルＬＬ値４５（日本建築学会推奨標準）乃至
ＬＬ値５５（同許容基準）に対しては、かなり不十分で
ある。As can be understood from the measurement results in Table 2, a floor structure using a conventional semi-rigid foamed plastic flooring material (LL value of ID is 70, L of urine sample (1) measured for reference)
Although it is better than the L value of 80, it is quite insufficient for the desired sound insulation performance level LL value of 45 (recommended standard by the Architectural Institute of Japan) to LL value of 55 (acceptable standard).
一方、本発明者等は、先にＪＩＳＡ−６３２２に準拠し
て測定した静的バネ定数が３０Ｘ１０６Ｎ／−以下であ
るエラスチックな発泡プラスチックスからなる床下地材
Ｂを用いた遮音性能を改良したコンクリート建築物の床
構造を特願昭６１−１４９７８０号他として出願した。On the other hand, the present inventors previously discovered concrete with improved sound insulation performance using flooring material B made of elastic foam plastic with a static spring constant of 30 x 106 N/- or less as measured in accordance with JISA-6322. The floor structure of the building was filed as Japanese Patent Application No. 149780/1984.
しかしながら、上記のエラスチックな発泡体を床下地材
とする床構造においても、ＬＬ値は５３〜５８の範囲で
あり、未だ遮音性能において、十分とは言い難かった。However, even in the floor structure using the above-mentioned elastic foam as the flooring material, the LL value was in the range of 53 to 58, and the sound insulation performance was still not sufficient.
本発明においては、床下地材の発泡プラスチックに表裏
に貫通する空所を設け、かつ、捨板の表裏に貫通して設
けた空所と前記床下地材の空所とが連通ずるように捨板
を敷設し、更に薄板状のスペーサーを前記捨板の空所と
床下地材の空所が連通ずる空所を塞がないように一定間
隔をおいて敷設することによりスペーサー間の空所と前
記連通ずる空所とを連通せしめ軽量衝撃音九対する遮音
性をより向上させた。In the present invention, the foamed plastic of the flooring material is provided with a cavity penetrating both the front and back sides, and the cavity is formed so that the cavity penetrating through the front and back of the scrapboard communicates with the cavity of the flooring material. By laying the boards and further laying thin plate-like spacers at regular intervals so as not to block the spaces where the spaces in the waste boards and the spaces in the subflooring material communicate, the spaces between the spacers can be closed. By communicating the above-mentioned communicating void, the sound insulation against lightweight impact noise was further improved.
即ち、本発明は、コンクリートスラブと、該スラブ上に
接合材により固着された上下に貫通する空所を有する発
泡プラスチックス製床下地材と、該床下地材の上に上下
に貫通する空所を有する木質系の捨板を、捨板の空所と
床下地材の空所を連通させて捨張りし、との捨板の上に
捨板の前記空所を塞がないように一定の間隔を置いてス
ペーサーを敷設し、更に床仕上材を張設してなるコンク
リ−トスラブの床構造を提供するものである。That is, the present invention provides a concrete slab, a foamed plastic flooring material having a vertically penetrating space fixed to the slab with a bonding material, and a foamed plastic flooring material having a vertically penetrating space above and below the flooring material. A wooden waste board with A concrete slab floor structure is provided in which spacers are laid at intervals and a floor finishing material is further stretched.
本発明の床下地材及びコンク’Ｊ −ト建築物の床構造
を、図面によって具体的に説明する。The subfloor material and concrete building floor structure of the present invention will be specifically explained with reference to the drawings.
第１図は本発明のコンクリート建築物の床構造の断面図
、第２図は第１図の床構造を構成する床下地材の斜視図
を示し、第３図はその平面図、第４図は第３図のＡ−Ａ
線断面図、第５図は床下地材、捨板、スペーサー、床仕
上材を各々分離して床下地材１枚分の大きさにつき位置
関係を描いた斜視図、第６図は床下地材と捨板とスペー
サーを敷設した状態を示す斜視図である。FIG. 1 is a sectional view of the floor structure of a concrete building according to the present invention, FIG. 2 is a perspective view of the subfloor material that constitutes the floor structure of FIG. 1, FIG. 3 is a plan view thereof, and FIG. is A-A in Figure 3.
A line cross-sectional view, Figure 5 is a perspective view showing the positional relationship of the flooring material, waste board, spacer, and floor finishing material each separated for each piece of flooring material, and Figure 6 is the flooring material. FIG. 3 is a perspective view showing a state in which a waste board and a spacer are installed.
第１図において、Ｓはコンクリートスラブ、Ｍはモルタ
ル、液状樹脂接着剤、樹脂モルタル等の接合材、Ｂは発
泡体製床下地材、１は桟木、８は上下に貫通する空所９
を有する合板、パーティクルボードなどの捨板、１０は
スペーサー、Ｆはスペーサー１０の上に張設された木質
系フローリング材よりなる床仕上材であり、該床仕上材
Ｆは釘３により桟木１または捨板８に係止されている。In Figure 1, S is a concrete slab, M is a bonding material such as mortar, liquid resin adhesive, or resin mortar, B is a foam flooring material, 1 is a crosspiece, and 8 is a space 9 that penetrates vertically.
10 is a spacer; F is a flooring material made of wood flooring material stretched over the spacer 10; It is locked to the waste plate 8.
ここにいう接合材Ｍは、床下地材Ｂをコンクリートスラ
ブＳに固定する材料であり、接着剤とセメントモルタル
を併用したり、ポリマー人りセメント系接着剤やエポキ
シ系接着剤、例えばアクリル系又はエチレン・酢酸ビニ
ル共重合体系ポリマー分散液を混入させた接着剤等を使
用する。The bonding material M here is a material that fixes the subfloor material B to the concrete slab S, and may be a combination of adhesive and cement mortar, a polymer cement adhesive, an epoxy adhesive, such as acrylic or Use an adhesive mixed with an ethylene/vinyl acetate copolymer dispersion.
床下地材Ｂは、第２図または第１０図に示す如き形状の
もので、第２図に示すものは下層のＪＩＳＡ−６３２２
に準拠して測定した静的バネ定数が３０Ｘ１０６Ｎ／−
以下、好ましくは５刈０６Ｎ／ｎｌ〜２０Ｘ１０６Ｎ／
−のエラスチックな発泡プラスチックス層４と、上層の
圧縮強さが０．８〜３ｔ６／ｌ−ａの半硬質プラスチッ
クス層５との積層体とより構成され、その上層の半硬質
プラスチックス層５に、多数の円柱状の貫通孔である空
所６が形成されており、ところどころに桟木１が埋設さ
れている。Flooring material B has a shape as shown in Fig. 2 or Fig. 10, and the one shown in Fig. 2 conforms to the JISA-6322 standard for the lower layer.
Static spring constant measured according to 30X106N/-
Below, preferably 5 mowing 06N/nl ~ 20X106N/
- consists of a laminate of an elastic foamed plastic layer 4 and an upper semi-rigid plastic layer 5 having a compressive strength of 0.8 to 3 t6/l-a; A large number of hollow spaces 6, which are cylindrical through holes, are formed in 5, and crosspieces 1 are buried here and there.
これらの空所６は、空所９を有する捨板８、スペーサー
１０、仕上材Ｆが張設された際に、捨板８の空所９と連
通するように設けられており、その形状は仕意である。These void spaces 6 are provided so as to communicate with the void space 9 of the waste board 8 when the waste board 8 having the void space 9, the spacer 10, and the finishing material F are stretched, and their shape is as follows. It is a work intention.
例えば円柱状、角柱状が挙げられる。For example, it may be cylindrical or prismatic.
さらに、これら空所６は半硬質プラスチックス層５の表
面に、直線状に一定間隔で、あるいは交差しながら１０
〜６０個、好ましくは２０〜４０個程度、形成全面積の
２〜２０％、好ましくは５〜１５％の割合で形成するの
が望ましい。Furthermore, these voids 6 are formed on the surface of the semi-rigid plastic layer 5 at regular intervals in a straight line or in an intersecting manner.
It is desirable to form about 60 pieces, preferably about 20 to 40 pieces, at a rate of 2 to 20%, preferably 5 to 15% of the total area.
また、このような床下地材Ｂに更に第１１図に示すよう
に、これら空所６を連結する直線状の溝部７を形成する
ことによって、この溝部７および前記空所６，９並びに
隣り合うスペーサーにより形成される空所１２で衝撃時
に発生する空気の流れをスムーズに拡散させることがで
きるので溝部７を設けることは望ましい。Further, as shown in FIG. 11, in such a subflooring material B, by forming a linear groove 7 that connects these spaces 6, this groove 7 and the spaces 6 and 9 and the adjacent It is desirable to provide the groove 7 because the air flow generated at the time of impact can be smoothly diffused in the cavity 12 formed by the spacer.
この発泡プラスチックス製床下地材Ｂの上に、捨板８、
スペーサー１０及び仕上材Ｆを張設することによって第
１図に示す如き遮音効果の優れたコンクリート建築物の
床構造が形成される。On this foamed plastic flooring material B, a waste board 8,
By stretching the spacer 10 and the finishing material F, a floor structure of a concrete building with excellent sound insulation effect as shown in FIG. 1 is formed.
第１０図は、エラスチックな発泡プラスチックス発泡体
で形成された床下地材Ｂで、空所６が表裏に貫通して設
けられている。FIG. 10 shows a flooring material B made of an elastic plastic foam, in which voids 6 are provided penetrating the front and back sides.
前記発泡プラスチックス製の床下地材Ｂのエラスチック
な発泡プラスチックス層４の肉厚は、−般に２５〜１０
（ｌｏ＋が望ましく、また、半硬質発泡プラスチックス
発泡体層５の肉厚は一般に１０〜３０簡であることが望
ましい。The elastic foamed plastic layer 4 of the foamed plastic flooring material B generally has a wall thickness of 25 to 10
(lo+ is desirable, and the thickness of the semi-rigid foamed plastic foam layer 5 is generally 10 to 30 cm).
該床下地材Ｂのエラスチックな発泡プラスチックスとし
ては、高密度ポリエチレン、線状低密度ポリエチレン、
ポリフロピレン、フロピレン・エチレン共重合体、スチ
レン・ポリエチレン共重合体等の、密度が８〜４０ ｆ
／ｌの発泡形成体や予備発泡ポリスチレン粒子を型内に
充填し、これをスチーム発泡成形した発泡ポリスチレン
ブロックを、加圧して１１５〜２／３に圧縮した後、そ
の圧を開放して得たものが用いられる。The elastic foamed plastics of the flooring material B include high-density polyethylene, linear low-density polyethylene,
Densities of 8 to 40 f such as polypropylene, propylene/ethylene copolymer, styrene/polyethylene copolymer, etc.
A foamed polystyrene block was obtained by filling a mold with a foamed material or pre-expanded polystyrene particles of 1/l, and steam-foaming the foamed polystyrene block. things are used.
このような、発泡ポリスチレンのエラスチック材は、一
般に厚さ４１０ｍ、幅９００ｍ、長さ１０００鴎の発泡
ポリスチレンブロックを厚さ方向例加圧して、その厚の
兇に圧縮し、その後圧力を開放して％まで回復させ、し
かる後、上記寸法にスライスして得られた発泡ポリスチ
ンン板が使用される。Such foamed polystyrene elastic materials are generally made by compressing a foamed polystyrene block with a thickness of 410 m, a width of 900 m, and a length of 1000 m to a volume of that thickness, and then releasing the pressure. %, and then sliced into the above dimensions and used.
エラスチックな発泡プラスチックスのバネ定数は、前述
の加圧、開放などの二次加工の加工条件によって、加工
前の発泡体の密度と種々に変化したものが得られる。The spring constant of elastic foamed plastics can vary in various ways from the density of the foam before processing, depending on the processing conditions of the secondary processing such as pressurization and release as described above.
表−１は、加圧前に異なった密度を有し、がっ厚さ４１
０ ｒａｎ、幅９００ ｍ、長さ１，８００ｔｔｍの発
泡プラスチックスを、それぞれ晃の厚さまで圧縮し、そ
の後圧力を解放して％まで回復させたものを厚さ５０１
１幅６００ｍ、長さ９００ｍに切断して得られたユニッ
ト床下地材Ｂの密度とバネ定数との関係を示すものであ
る。Table 1 shows the thickness of the material with different densities before pressing.
0 ran, width 900 m, length 1,800 ttm of foamed plastic was compressed to a thickness of 50%, and then the pressure was released to recover it to a thickness of 501%.
This figure shows the relationship between the density and spring constant of unit floor base material B obtained by cutting into pieces of 600 m in width and 900 m in length.
（以下余白）
表−１
前記発泡プラスチックス製床下地材Ｂの半硬質（Ｄｊ５
ｙ、ｆックス発泡体としては、ポリスチレン、スｆＬ／
ン・α−メチルスデレン・アクリロニトリル共重合体、
ＡＢＳ樹脂等のスデレン系樹脂の予備発泡粒子を型内に
充填し、スチーム加熱して発泡させ、相互に融着させて
得られた型物発泡成形体が利用できる。このものの密度
は一般に１５〜４０ ｔ／ｌであることが強度、断熱性
の面で好ましい。(Left below) Table 1 Semi-rigid (Dj5) of the foamed plastic flooring material B
y, fx foams include polystyrene, sfL/
α-methylsderene acrylonitrile copolymer,
A molded foam molded article obtained by filling pre-expanded particles of suderene resin such as ABS resin into a mold, foaming them by heating with steam, and fusing them together can be used. The density of this material is generally preferably 15 to 40 t/l in terms of strength and heat insulation.
床下地材Ｂの大きさは縦４００〜１０００■横４００〜
１０００ｒｍ、高さ２０〜１５０ｍ（７）ブロック状の
もの又は端部に今次りを備えたもの、又は−枚の半硬質
プラスチック発泡体の下部に、四枚のエラスチックな発
泡体を間隔を置いて貼着したものなどで、その上面には
横木ｌが埋め込まれている。The size of the flooring material B is 400~1000 x 400~
1000 rm, height 20-150 m (7) block-like or with bulges at the ends, or - four pieces of elastic foam spaced at the bottom of one piece of semi-rigid plastic foam. It has a crosspiece l embedded in its top surface.
多数の空所９，９．９・・・を有する捨板８としては、
一般に洋間用には厚さ９〜１５箇の合板又はパーティク
ルボードが用いられ、横木ｌに釘打ちして、この上に肉
厚が２〜５■のスペーサー１０を捨板８の空所９，９・
・・を塞がないように１０〜５０ｍの間隔を置いて張設
し、更にその上に床仕上材Ｆを張設、釘打ちしてコンク
リート床構造ができる。As a waste board 8 having a large number of blank spaces 9, 9, 9...
Generally, plywood or particle board with a thickness of 9 to 15 pieces is used for Western-style rooms, and nailed to the crosspiece l, spacers 10 with a wall thickness of 2 to 5 cm are placed on top of the spacer 10 in the empty space 9 of the waste board 8. 9・
... are placed at intervals of 10 to 50 m so as not to block them, and then the floor finishing material F is placed on top of that and nailed to form a concrete floor structure.
空所６，６・・・、９，９・・・の大きさは短辺の長さ
、または直径が５〜５０＋ｍの円柱状、三角柱状、角柱
状の形状である。”
スペーサ−１０，１０・・・の素材としては肉厚が２〜
５噛のベニア板、プラスチックシート、発泡プラスチッ
クシート、ゴムシート、不織布、ネット状物等が使用さ
れる。The spaces 6, 6, . . . , 9, 9, . ” The material for spacers 10, 10... has a wall thickness of 2~
5-layer plywood, plastic sheets, foamed plastic sheets, rubber sheets, non-woven fabrics, net-like materials, etc. are used.
スペーサー１０と捨板８の係止は釘打でもよいし、接着
剤を用いてもよい。場合によっては固定しないでおき、
床仕上材と捨板とを釘打ちする際に横木に釘打て固定し
てもよい。The spacer 10 and the waste board 8 may be locked together by nailing or by using an adhesive. In some cases, leave it unfixed,
When nailing the floor finishing material and the scrap board, it is also possible to fix them by nailing them to the crossbars.
エラスチックな発泡プラスチックスの製造予備発泡ポリ
スチレン粒子を型内に充填し、これをスチーム発泡成形
して発泡ポリスチレンブロックとし、次いでこれを加圧
した後、その圧力を開放して得たものである。この実施
例では、厚さ４１０瓢、幅９００覇、長さ１０００ＩＩ
ＩＩ＋＋１ 密度が１８ ｆ／ｌの発泡ポリスチレンブ
ロックを厚さ方向に加圧して、その厚の見に圧縮し、そ
の後圧力を開放して％まで回復させ、しかる後、上記寸
法にスライスすることによってバネ定数が１０ ＸＩ
Ｏ’Ｎ／ｒｒ？のエラスチックな発泡プラスチックスの
プロックを製造した。Manufacture of elastic foamed plastics Pre-expanded polystyrene particles are filled into a mold, steam-foamed to form a foamed polystyrene block, which is then pressurized and then the pressure is released. In this example, the thickness is 410 mm, the width is 900 mm, and the length is 1000 mm.
II++1 A foamed polystyrene block with a density of 18 f/l is compressed in the thickness direction by compressing it according to its thickness, then the pressure is released to recover it to %, and then the spring is made by slicing it into the above dimensions. Constant is 10 XI
O'N/rr? manufactured elastic foam plastic block.
発泡プラスチックス製床下地材の製造
第３図及び第４図に示す形状の、圧縮強さが１ 、２
ｋｇ／ ｃａ、密度２５ｙ／ｌの縦９００ＩＩＩＩＩ＋
１幅５９５１１Ｅ１１１．高さ５０ａ＋であり、直径３
０ｍｍの孔６を１０ｃＩｎ間隔でその中心部に７測子字
状に設け、かつ、床下地材隣接部にも相当数の孔を形成
できるように半円柱状に切り欠き、また、表面側に縦２
００＋ｍ、幅４０謳、厚さ１９＋ｕｎの横木挿入用溝を
形成した型内発泡ポリスチレン成形体５に枝木１を挿入
した。そして裏面側に形成した窪み部１１（窪み部間の
距離は縦方向８０−１横方向８０圏、窪みの大きさは、
２１８■×３７０ＩｍＸ窪み部の深さ１０ａ＋）内に、
前記発泡プラスチックスの製造にて得られた密度１ｓｔ
／ｌ、静的バネ定数が１０Ｘｉ Ｏ６Ｎ／ｎｌのエラス
チックなブロック４（２１７＋ｍＸ３６９ｍ、高さ６０
簡の直方体）を四個嵌合し、この嵌合部分にエポキシ樹
脂接着剤を接着させて発泡プラスチックス製床下地材Ｂ
を得た。Manufacture of foamed plastic flooring material The shape shown in Figures 3 and 4 has a compressive strength of 1 or 2.
kg/ca, vertical 900III+ with density 25y/l
1 width 59511E111. Height 50a+, diameter 3
Holes 6 with a diameter of 0 mm were provided at 10 cIn intervals in a 7-diagram shape in the center, and semi-cylindrical notches were cut out so that a considerable number of holes could be formed in the area adjacent to the flooring material. Vertical 2
A branch 1 was inserted into an in-mold foamed polystyrene molded body 5 in which a groove for inserting a crosspiece having a width of 40 mm, a width of 40 mm, and a thickness of 19 mm was formed. Then, a recess 11 is formed on the back side (the distance between the recesses is 80-1 in the vertical direction and 80 in the horizontal direction, and the size of the recess is as follows:
218 x 370 Im x depth of recess 10a+),
Density 1st obtained in the production of the foamed plastics
/l, static spring constant 10Xi O6N/nl elastic block 4 (217+mX369m, height 60
Four pieces (a simple rectangular parallelepiped) are fitted together, and an epoxy resin adhesive is applied to the fitted parts to form a foamed plastic flooring material B.
I got it.
コンクＩＪ −ト建築物の床構造の製造実施例１
コンクＩＪ −ト建築物の音源室（床面積２，８００Ｘ
３，６７０ ｍ）のコンクリートスラブＳ（厚さ１５
０ｍ＋）上にセメントモルタル接着剤Ｍを用いて前記発
泡プラスチックス製床下地材Ｂを固着し、次いで肉厚１
２ｍ１１１１直径３０ｍの円柱状の孔９を床下地材の孔
６と同間隙で多数個有する捨板８を枝木１に床下地材の
孔６と捨板の孔９が連通するように釘打し、その捨板の
上に、縦４００■、横２４８ ｖｍ、肉厚３ｍｍのベニ
ア板１０を前記孔９゜９・・・を塞がないよう隣りあう
ベニア板の間隔が約５０閣となるように敷設し、枝木１
上に、捷たは捨板８上に釘打して第１図に示す如き床構
造を形成した。Example 1 of manufacturing the floor structure of a concrete IJ-G building
3,670 m) concrete slab S (thickness 15
0m+) using cement mortar adhesive M to fix the foamed plastic flooring material B, and then
2 m 11 11 Nail the waste board 8 having a large number of cylindrical holes 9 with a diameter of 30 m at the same spacing as the holes 6 of the flooring material to the branch tree 1 so that the holes 6 of the floor material and the holes 9 of the waste board communicate with each other. Then, on top of the scrap board, place a plywood board 10 with a length of 400mm, a width of 248mm, and a wall thickness of 3mm, so that the distance between adjacent plywood boards is about 50cm so as not to block the holes 9°9... Lay the branches like this, 1
A floor structure as shown in FIG. 1 was formed by nailing onto the top of the board 8.
得られた床構造について、ＪＩＳ Ａ １４１８の
軽量法衝撃発生器による方法に準じて床衝撃音のレベル
測定を行ない、表−２の結果を得た。The floor impact sound level of the obtained floor structure was measured according to the JIS A 1418 method using a lightweight impact generator, and the results shown in Table 2 were obtained.
実施例２
床下地材Ｂとして第１０図に示すエラスチックな発泡プ
ラスチック製のものを用いる他は実施例１と同様にして
コンクリート建築物の床構造を得た。Example 2 A floor structure for a concrete building was obtained in the same manner as in Example 1, except that an elastic foamed plastic material shown in FIG. 10 was used as the flooring material B.
比較例１
従来のコンクリート床構造〔旧において、半硬質の発泡
ポリスチレン床下地材の代りにバネ定数が１０×１０６
Ｎ／ｌｒ？のエラスチックな発泡プラスチック製床下
地材を用いる他は同様にして表−２に示す物性のコンク
ＩＪ −ト床構造を得た。Comparative Example 1 Conventional concrete floor structure [In the old case, a spring constant of 10
N/lr? A concrete IJ-floor structure having the physical properties shown in Table 2 was obtained in the same manner except that an elastic foamed plastic flooring material was used.
比較例２
実施例１において、床下地材、捨板とも孔を有しないも
のを用いる他は同様にして表−２に示す物性のコンクリ
ート床構造を得た。Comparative Example 2 A concrete floor structure with the physical properties shown in Table 2 was obtained in the same manner as in Example 1, except that both the floor base material and the waste board had no holes.
衣−２の結果より、本発明の床構造は採尿（１）、従来
の発泡プラスチックス製床下地材を用いた床構造（ＩＩ
）よりも、軽量衝撃音に対しても遮音効果が優れること
が理解される。From the results of Example 2, the floor structure of the present invention is suitable for urine collection (1) and floor structure using conventional foamed plastic flooring material (II).
), it is understood that the sound insulation effect is better even against light impact noise.
本発明はコンクリート建築物の床構造は、床下地材およ
び捨板にそれぞれ多数の貫通孔（空所）を設け、両者の
貫通孔を連通させるように敷設し、かつ、この貫通孔を
塞がないようにスペーサーを一定間隔を置いて敷設し、
隣り合うスペーサー間のすきま１２．１２・・・により
この多数の貫通孔を連絡するので、従来のコンクリ−ト
スラブで、特に、ＬＬ値の決定に影響を及ぼす１２５〜
５００敗の周波数帯域での床衝撃音を大巾に吸収し、か
つ空気伝播音の騒音の遮断性にも優れたコンクリート建
築物の床構造としたもので、このような床構造は、断熱
性、温かさ、歩行の快適さ、安全性、配管部の施工性等
で優れているので居住性に優れた床構造である。The present invention provides a floor structure for a concrete building in which a large number of through holes (vacancies) are provided in the subfloor material and the waste board, and the through holes are laid so as to communicate with each other, and the through holes are not blocked. Lay spacers at regular intervals to prevent
Since the large number of through holes are connected by the gaps 12.12... between adjacent spacers, in conventional concrete slabs, the gaps 125...
The floor structure is made of a concrete building that absorbs floor impact sound in a frequency band of 500 and has excellent insulation properties against airborne sound. It is a floor structure with excellent livability as it is superior in terms of warmth, walking comfort, safety, ease of construction of piping, etc.
（以下余白）(Margin below)
第１図は本発明実施例のコンクリート建築物の床構造の
断面図、第２図は第１図の床構造を構成する床下地材の
斜視図を示し、第３図はその平面図、第４図は第１図の
Ａ−Ａ線断面図、第５図は床下地材、捨板、スペーサー
、床仕上材を敷設する前の斜視図である。第６図は床下
地材、捨板、スペーサーを積層した状態を示す斜視図、
第７図は従来の洋室のコンクＩＪ −ト建築物の床構造
を示し、第８図は第７図において用いた床下地材の形状
を示し、（イ）は平面図、（ロ）は裏面図、（・・）は
正面図、（ニ）は側面図である。
第９図は第７図においてコンクリートスラブに塗布され
た接合材の床下地材との接着部の分布状態を示す図であ
る。第１０図と第１１図は他の床下地材の断面図である
。Fig. 1 is a sectional view of the floor structure of a concrete building according to an embodiment of the present invention, Fig. 2 is a perspective view of the subfloor material constituting the floor structure of Fig. 1, and Fig. 3 is a plan view thereof. FIG. 4 is a sectional view taken along the line A-A in FIG. 1, and FIG. 5 is a perspective view before laying the subfloor material, waste board, spacer, and floor finishing material. Figure 6 is a perspective view showing the state in which the subfloor material, waste boards, and spacers are laminated;
Figure 7 shows the floor structure of a conventional Western-style concrete IJ-G building, and Figure 8 shows the shape of the subfloor material used in Figure 7, (a) is a plan view, and (b) is the back side. In the figure, (...) is a front view, and (D) is a side view. FIG. 9 is a diagram showing the distribution of bonding parts between the bonding material applied to the concrete slab and the subfloor material in FIG. 7. FIGS. 10 and 11 are cross-sectional views of other flooring materials.
Claims (1)
り固着された上下に貫通する空所を有する発泡プラスチ
ックス製床下地材と、該床下地材の上に上下に貫通する
空所を有する木質系の捨板を捨板の空所と床下地材の空
所を連通させて捨張りし、この捨板の上に捨板の前記空
所を塞がないように一定の間隔を置いてスペーサーを敷
設し、更に床仕上材を張設してなるコンクリート建築物
の床構造。 ２）、発泡プラスチックス製床下地材が、ＪＩＳＡ−６
３２２に準拠して測定した静的バネ 定数３０×１０＾６Ｎ／ｍ＾３以下であるエラスチック
な発泡プラスチックスの複数を一定間隔をおいて形成さ
れた下層と、ＪＩＳＡ−９ ５１１−８４に準拠して測定した圧縮強さが０．８〜３
ｋｇ／ｃｍ＾２の半硬質発泡プラスチックスより形成さ
れた上層との積層構造物よりなり、かつ、前記上層の上
面に多数の上下に貫通する空所が形成されていることを
特徴とする請求項第１項記載のコンクリート建築物の床
構造。[Scope of Claims] 1) A concrete slab, a foamed plastic flooring material fixed to the slab with a bonding material and having a void space penetrating above and below, and penetrating above and below the flooring material. A wood-based waste board with a void space is laid out so that the space in the waste board communicates with the space in the subflooring material, and a certain amount of space is placed on top of the waste board so as not to block the space in the waste board. A floor structure for concrete buildings that consists of laying spacers at intervals of , and then applying floor covering material. 2) The foamed plastic flooring material meets JISA-6
A lower layer formed of a plurality of elastic foamed plastics at regular intervals with a static spring constant of 30 x 10^6 N/m^3 or less measured in accordance with JISA-9 511-84, measured in accordance with JISA-9 511-84. The compressive strength measured by
A claim characterized in that the material is made of a laminated structure with an upper layer made of semi-rigid foamed plastic of kg/cm^2, and a number of voids penetrating vertically are formed on the upper surface of the upper layer. Floor structure of a concrete building as described in item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13224688A JP2633294B2 (en) | 1988-05-30 | 1988-05-30 | Concrete building floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13224688A JP2633294B2 (en) | 1988-05-30 | 1988-05-30 | Concrete building floor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01304266A true JPH01304266A (en) | 1989-12-07 |
| JP2633294B2 JP2633294B2 (en) | 1997-07-23 |
Family
ID=15076785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13224688A Expired - Fee Related JP2633294B2 (en) | 1988-05-30 | 1988-05-30 | Concrete building floor structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2633294B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0738408U (en) * | 1993-12-21 | 1995-07-14 | 積水化成品工業株式会社 | Floor base material and floor structure of concrete building using the same |
-
1988
- 1988-05-30 JP JP13224688A patent/JP2633294B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0738408U (en) * | 1993-12-21 | 1995-07-14 | 積水化成品工業株式会社 | Floor base material and floor structure of concrete building using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2633294B2 (en) | 1997-07-23 |
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