JP2007146532A - Ribbed floor slab and synthetic floor slab structure using ribbed floor slab - Google Patents

Ribbed floor slab and synthetic floor slab structure using ribbed floor slab Download PDF

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JP2007146532A
JP2007146532A JP2005343649A JP2005343649A JP2007146532A JP 2007146532 A JP2007146532 A JP 2007146532A JP 2005343649 A JP2005343649 A JP 2005343649A JP 2005343649 A JP2005343649 A JP 2005343649A JP 2007146532 A JP2007146532 A JP 2007146532A
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floor board
rib
hollow material
ribbed
ribs
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JP4679354B2 (en
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Yasuhiro Oda
康弘 小田
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Penta Ocean Construction Co Ltd
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Penta Ocean Construction Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a ribbed floor slab and a synthetic floor slab structure using the ribbed floor slab capable of realizing a lightweight synthetic floor slab. <P>SOLUTION: This ribbed floor slab 10 comprises a plurality of ribs 11 having built-in prestressed concrete wires 12 and hollow members 13 installed between the ribs, and the hollow members 13 have their peak portions protruded beyond the top surfaces 11a of the ribs. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、中空材が設置されたリブ付き床板及びそのリブ付き床板を用いた合成床板構造に関する。   The present invention relates to a ribbed floor board in which a hollow material is installed and a synthetic floorboard structure using the ribbed floor board.

従来、コンクリート系集合住宅の床板構造には、ＰＣ（プレストレストコンクリート）鋼線内蔵のプレキャストコンクリート板（ＰＣａ板）上に合成樹脂発砲成形品からなる軽量の埋込材を定着し、その上から現場打ちコンクリートを打設して現場打ちコンクリート内に埋込材を埋設して合成した中空スラブ構造が広く採用されている（下記特許文献１，２参照）。   Conventionally, the floor structure of concrete apartment houses has been fixed with a lightweight embedding material made of synthetic resin foam on a precast concrete board (PCa board) with built-in PC (prestressed concrete) steel wire. A hollow slab structure in which cast concrete is cast and an embedded material is embedded in the cast concrete is widely used (see Patent Documents 1 and 2 below).

図７に中空スラブ構造を有するＰＣ鋼線内蔵の合成床板の従来例を示すが、このＰＣ鋼線内蔵の合成床板１０５は、ＰＣ鋼線１０２が埋め込まれたリブ１０１と１０１との間にリブ１０１の高さと同一の中空材１０３を埋め込まれたリブ付き床板１００が工場で生産され、現場に搬入されてから、２枚のリブ付き床板１００がジョイント部１００ａで接合されてそれらのリブ付き床板１００にコンクリート１０４が現場打ちされることで完成する。
特開２００３−３５９６号公報 特開２００１−２１４５６２号公報 FIG. 7 shows a conventional example of a composite floor board with a built-in PC steel wire having a hollow slab structure. This synthetic floor board 105 with a built-in PC steel wire is a rib between ribs 101 and 101 in which a PC steel wire 102 is embedded. The ribbed floor plate 100 in which the hollow material 103 having the same height as 101 is embedded is produced at the factory and then brought into the site. Then, the two ribbed floor plates 100 are joined by the joint portion 100a, and the ribbed floor plates are joined. It is completed when concrete 104 is cast on site 100.
JP 2003-3596 A JP 2001-214562 A

しかしながら、工場で生産される図７のリブ付き床板１００は、リブ１０１の高さを合成床板１０５の厚さｔに合わせて変化させることはできず、合成床板１０５の厚さｔが厚い場合には、床板上部の現場打ち部分のコンクリート１０４の量が過剰になり、重量化してしまうきらいがあった。   However, the ribbed floor plate 100 of FIG. 7 produced in the factory cannot change the height of the rib 101 in accordance with the thickness t of the synthetic floor plate 105, and the thickness t of the synthetic floor plate 105 is thick. However, the amount of the concrete 104 in the in-situ portion on the upper part of the floor board is excessive, and there is a tendency to increase the weight.

本発明は、上述のような従来技術の問題に鑑み、合成床板の軽量化を実現可能なリブ付き床板及びリブ付き床板を用いた合成床板構造を提供することを目的とする。   The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a ribbed floor plate and a synthetic floorboard structure using the ribbed floorboard that can reduce the weight of the synthetic floorboard.

上記目的を達成するために、本発明によるリブ付き床板は、ＰＣ鋼線を内蔵した複数のリブと、前記リブ間に設置された中空材と、を備えるリブ付き床板であって、前記中空材が前記リブ間において前記リブの上面よりも突き出た最頂部を有することを特徴とする。   In order to achieve the above object, a floor board with ribs according to the present invention is a floor board with ribs comprising a plurality of ribs incorporating a PC steel wire, and a hollow material installed between the ribs, Has an uppermost portion protruding from the upper surface of the rib between the ribs.

このリブ付き床板によれば、リブ上面よりも高い最頂部を有する中空材をリブ付き床板に設けることで、現場打ちのコンクリート量が減るので、リブ付き床板により構成される合成床板の軽量化を実現できる。   According to this ribbed floorboard, the hollow material having the topmost part higher than the rib upper surface is provided on the ribbed floorboard, so that the amount of concrete cast on site is reduced, so the weight of the synthetic floorboard composed of the ribbed floorboard is reduced. realizable.

上記リブ付き床板において、前記中空材が前記リブに接する部分で切り欠かれた切欠部を有し、前記リブの上面の突出部が前記中空材の切欠部の上面よりも突き出ていることが好ましい。中空材のリブに接する部分に切欠部を設け、リブ周囲の中空材の高さを低くすることで、リブと現場打ちのコンクリートとの一体性が向上し、床衝撃時に一体として振動する性能を確保でき、合成床板の衝撃音遮音性能を向上できる。また、工場で生産されるリブ付き床板（下板）と現場打ちコンクリート（上板）との一体性が向上することで、長期たわみの進行における上板と下板のずれも効果的に抑制できる。   In the floor board with ribs, it is preferable that the hollow material has a cutout portion cut out at a portion in contact with the rib, and the protruding portion of the upper surface of the rib protrudes from the upper surface of the cutout portion of the hollow material. . By providing a notch in the part of the hollow material in contact with the rib and lowering the height of the hollow material around the rib, the integrity of the rib and the concrete on the spot is improved, and the ability to vibrate as a unit at the time of floor impact It can be ensured and the impact sound insulation performance of the synthetic floorboard can be improved. Also, by improving the integrity of the ribbed floor board (bottom board) produced in the factory and the cast-in-place concrete (upper board), it is possible to effectively suppress the deviation between the upper board and the lower board in the course of long-term deflection. .

この場合、前記切欠部は、前記リブの上面から深さが２０ｍｍ以上、前記リブの上面の突出部の突出際からの水平距離が２０ｍｍ以上となるように設けられることが好ましい。このように寸法を設定することで、コンクリートにおいて多用される最大径２０ｍｍ以下の粗骨材が切欠部に進入することができる。   In this case, it is preferable that the notch is provided so that the depth is 20 mm or more from the upper surface of the rib and the horizontal distance from the protrusion of the protruding portion on the upper surface of the rib is 20 mm or more. By setting the dimensions in this way, coarse aggregate having a maximum diameter of 20 mm or less that is frequently used in concrete can enter the notch.

また、前記中空材の断面が略半円形状であることが好ましく、中空材を略半円形状の断面とすることで、中空材の上部に位置する現場打ちコンクリートの薄板部分における共振現象を緩和できる。また、前記中空材の内部がくりぬかれていることで、中空材の材料を節約できる。   Moreover, it is preferable that the hollow material has a substantially semicircular cross section. By making the hollow material a substantially semicircular cross section, the resonance phenomenon in the thin plate portion of the cast-in-place concrete located above the hollow material is mitigated. it can. Moreover, the hollow material can be saved by hollowing out the inside of the hollow material.

また、前記中空材の前記リブの長さ方向に沿った上面に一定間隔で凹んだスリットを設けることが好ましい。複数のリブ付き床板を工場でストックするときや運搬するときに、リブ付き床板を積層することが必要になるが、このとき、スリットにりん木を配置することで、リブ付き床板を積層する際に便利である。なお、スリットの幅は、りん木のサイズに合わせて形成することが好ましい。   Moreover, it is preferable to provide slits recessed at regular intervals on the upper surface of the hollow material along the length direction of the ribs. When stocking or transporting multiple floor boards with ribs, it is necessary to stack the floor boards with ribs. At this time, when stacking ribbed floor boards by placing phosphorus trees in the slits. Convenient to. The slit width is preferably formed in accordance with the size of the apple tree.

また、前記中空材を発泡プラスチック材料により成形し、前記スリットを前記中空材の中央部または端部で形成させることが好ましい。また、前記スリットの配置間隔を０．５ｍ乃至２．０ｍの範囲内で一定間隔とすることが好ましい。また、前記中空材の中心位置対して前記スリットを対称に配置することが好ましい。現場への搬送時には、現場でのリブ付き床板の設置の順番に、トラックに積載することが求められるが、この際に、各リブ付き床板に対して中空材のスリットが一定間隔で対称に並ぶので、リブ付き床板の長さがまちまちになっても、適切なりん木の設置位置を選択できる。   Moreover, it is preferable that the said hollow material is shape | molded with a foamed plastic material, and the said slit is formed in the center part or edge part of the said hollow material. Further, it is preferable that the arrangement interval of the slits is a constant interval within a range of 0.5 m to 2.0 m. Moreover, it is preferable to arrange | position the said slit symmetrically with respect to the center position of the said hollow material. When transporting to the site, it is required to load on the truck in the order of installation of the ribbed floor plate at the site. At this time, the slits of the hollow material are arranged symmetrically at regular intervals with respect to each ribbed floor plate. Therefore, even if the length of the floor board with ribs varies, it is possible to select an appropriate position for setting the apple tree.

本発明による合成床板構造は、上述のリブ付き床板を所定数だけ設置し、その設置場所でコンクリートを打設し（現場打ち）、前記中空材を埋め込むことで構成されることを特徴とする。   The composite floorboard structure according to the present invention is characterized in that a predetermined number of the above-mentioned floorboards with ribs are installed, concrete is cast at the installation location (on-site casting), and the hollow material is embedded.

この合成床板構造によれば、リブ上面よりも高い最頂部を有する中空材をリブ付き床板に設けることで、現場打ちのコンクリート量が減るので、合成床板の軽量化を実現できる。特に、ロングスパンとなっている鉄筋コンクリート造の集合住宅等の建物において、中空材の容量を最大化することで、合成床板（合成スラブ）の重量の軽減を図り、建物の構造体としての負担の軽減を実現できる。   According to this synthetic floor board structure, the hollow material having the topmost portion higher than the upper surface of the rib is provided on the floor board with ribs, so that the amount of concrete cast on the spot is reduced, so that the weight of the synthetic floor board can be realized. In particular, in buildings such as reinforced concrete apartment buildings that have long spans, the weight of the composite floorboard (synthetic slab) is reduced by maximizing the capacity of the hollow material, which reduces the burden on the building structure. Mitigation can be realized.

本発明のリブ付き床板及びリブ付き床板を用いた合成床板構造によれば、リブ付き床板から構成される合成床板の軽量化を実現できる。   According to the ribbed floor board and the synthetic floorboard structure using the ribbed floorboard of the present invention, it is possible to reduce the weight of the synthetic floorboard composed of the ribbed floorboard.

以下、本発明を実施するための最良の形態について図面を用いて説明する。図１は本実施の形態によるリブ付き床板を示す側面図である。図２は図１の中空材の正面図（ａ）及び側面図（ｂ）である。図３は図２の中空材を一体に連結した構成の連結一体型中空材を示す側面図である。図４は図１のリブ付き床板を組み合わせコンクリートが現場打ちされて構成された合成床板を示す側面図である。   The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a floor board with ribs according to the present embodiment. 2 is a front view (a) and a side view (b) of the hollow member of FIG. FIG. 3 is a side view showing a connection-integrated hollow member having a structure in which the hollow members of FIG. 2 are integrally connected. FIG. 4 is a side view showing a synthetic floor board constituted by combining the floor board with ribs of FIG.

図１に示すように、本実施の形態によるリブ付き床板１０は、ＰＣ鋼線１２を内蔵してコンクリート打設で形成された複数のリブ１１と、リブ１１、１１の間に軽量化及び遮音性等のために設置された中空材１３と、を備える。   As shown in FIG. 1, the floor board 10 with ribs according to the present embodiment is light weighted and sound-insulated between a plurality of ribs 11 including a PC steel wire 12 formed by concrete placement and the ribs 11, 11. And a hollow member 13 installed for the purpose of performance.

中空材１３は、発泡プラスチック材料から一体に成形された成形品であり、図１，図２（ａ），（ｂ）のように、断面形状が板状である台座部１３ｂと、台座部１３ｂ上に一体に略半円状に設けられた略半円状部１３ａと、を有し、図２（ｂ）のように、所定長さに延びている。   The hollow material 13 is a molded product integrally molded from a foamed plastic material, and as shown in FIGS. 1, 2A and 2B, a pedestal portion 13b having a plate-like cross section and a pedestal portion 13b. And a substantially semicircular portion 13a integrally formed on the upper portion, and extends to a predetermined length as shown in FIG. 2 (b).

ＰＣ鋼線１２を内蔵した複数のリブ１１をコンクリートの打設で連結して形成し、リブ１１，１１間の空間に中空材１３をはめ込むことで、図１のようなリブ付き床板１０を工場内で製造できるが、かかるリブ付き床板１０において中空材１３は、リブ１１，１１間に挟まれており、台座部１３ｂがリブ１１，１１間の空間の下方に位置し、略半円状部１３ａの大部分がリブ１１の上面１１ａから突き出ており、最頂部となっている。即ち、略半円状部１３ａの上方部分（図１のハッチングで示す部分）が最頂部を構成している。   A ribbed floor plate 10 as shown in FIG. 1 is formed by connecting a plurality of ribs 11 containing a PC steel wire 12 by concrete casting and inserting a hollow material 13 into a space between the ribs 11 and 11. In the ribbed floor plate 10, the hollow material 13 is sandwiched between the ribs 11 and 11, and the pedestal portion 13 b is located below the space between the ribs 11 and 11, and is a substantially semicircular portion. Most of 13a protrudes from the upper surface 11a of the rib 11, and becomes the top. That is, the upper part (the part indicated by hatching in FIG. 1) of the substantially semicircular part 13a constitutes the top part.

中空材１３において、略半円状部１３ａは、図１，図２（ａ）のように、その底部でセットバックされて台座部１３ｂよりも若干幅狭となっており、小幅の平坦部１３ｄが両端に形成されている。また、図１のように台座部１３ｂの高さｈがリブ１１，１１間の空間高さｍよりも小さくなっており、略半円状部１３ａの下方の一部がリブ１１，１１間の空間内に位置している。このような中空材１３とリブ１１の構成により、中空材１３にはリブ１１に接する部分で切り欠かれた切欠部１３ｃが略半円状部１３ａの両端側に形成されており、リブ１１の上面１１ａが中空材１３の切欠部１３ｃの平坦部１３ｄよりも突き出ている。   In the hollow member 13, the substantially semicircular portion 13a is set back at the bottom thereof and slightly narrower than the pedestal portion 13b, as shown in FIGS. Are formed at both ends. Further, as shown in FIG. 1, the height h of the pedestal portion 13 b is smaller than the space height m between the ribs 11, 11, and a part below the substantially semicircular portion 13 a is between the ribs 11, 11. Located in space. With such a configuration of the hollow member 13 and the rib 11, the hollow member 13 is formed with cutout portions 13 c cut out at the portions in contact with the rib 11 at both ends of the substantially semicircular portion 13 a. The upper surface 11a protrudes from the flat portion 13d of the cutout portion 13c of the hollow material 13.

図１のように、中空材１３とリブ１１は、切欠部１３ｃがリブ１１の上面１１ａから深さｙが２０ｍｍ以上で、リブ１１の上面１１ａの際からの水平距離ｘが２０ｍｍ以上となるように構成されている。このように切欠部１３ｃの寸法を設定することで、コンクリートにおいて多用される最大径２０ｍｍ以下の粗骨材が切欠部１３ｃに進入できる。なお、深さｙ及び水平距離ｘは、軽量化の目的に相反しないように５０ｍｍ以下が好ましい。   As shown in FIG. 1, the hollow material 13 and the rib 11 are such that the notch 13 c has a depth y of 20 mm or more from the upper surface 11 a of the rib 11 and the horizontal distance x from the upper surface 11 a of the rib 11 is 20 mm or more. It is configured. By setting the size of the notch 13c in this way, coarse aggregate having a maximum diameter of 20 mm or less that is frequently used in concrete can enter the notch 13c. The depth y and the horizontal distance x are preferably 50 mm or less so as not to conflict with the purpose of weight reduction.

また、中空材は、図３のように、図２の中空材１３を連結して一体に成形した連結一体型中空材１３’としてもよく、図２の中空材１３を複数配置する構成の場合に、配置の手間がかからず便利であり、製造工数の短縮化に寄与できる。   Further, as shown in FIG. 3, the hollow material may be a connection-integrated hollow material 13 ′ in which the hollow material 13 of FIG. 2 is connected and integrally formed, and a plurality of the hollow materials 13 of FIG. 2 are arranged. In addition, it is convenient because it does not require time and effort, and can contribute to shortening the number of manufacturing steps.

図１のようなリブ付き床板１０は、工場で製造されて建築現場に搬入され、図４のように、適当な数が組み合わされ、ジョイント部２２で突き合わされて接合され、現場打ちでコンクリート２１が打設されることで、合成床板（合成スラブ）２０がその建物の合成床構造として完成する。   The ribbed floor board 10 as shown in FIG. 1 is manufactured at a factory and carried into a construction site. As shown in FIG. Is completed, the composite floor board (synthetic slab) 20 is completed as the composite floor structure of the building.

以上のような合成床板２０によれば、リブ付き床板１０においてリブ１１の上面１１ａよりも高い最頂部を有する中空材１３を設置することで、合成床板２０の軽量化を実現できる。従来の中空スラブ構造では、図７のように中空材の高さがリブ高さと同一であり、合成床板が厚いと、現場打ち部分のコンクリートの量が過剰になり、重量化してしまったのに対し、本実施の形態の合成床板２０は、中空材１３がリブ１１の上面１１ａよりも突き出た高い最頂部を有するので、合成床板２０の厚さＴが大きくなっても、合成床板としての重量が徒に増大することはない。   According to the synthetic floor board 20 as described above, the weight reduction of the synthetic floor board 20 can be realized by installing the hollow material 13 having the topmost portion higher than the upper surface 11a of the rib 11 in the floor board 10 with ribs. In the conventional hollow slab structure, as shown in FIG. 7, the height of the hollow material is the same as the rib height, and if the synthetic floor board is thick, the amount of concrete in the cast-in-place portion becomes excessive and has become heavy. On the other hand, since the synthetic floor board 20 of this Embodiment has the high top part which the hollow material 13 protruded rather than the upper surface 11a of the rib 11, even if thickness T of the synthetic floor board 20 becomes large, the weight as a synthetic floor board Will not increase.

また、合成床板において従来よりも大型の中空板を用いた場合、その上部では、床衝撃音の遮音性能上、共振現象が生じ易かったのであるが、中空材１３の上部を略半円状断面とすることで、合成床板２０における中空材１３の上部の薄板部分の共振現象を緩和できる。   Further, when a hollow plate larger than the conventional one is used in the synthetic floor plate, a resonance phenomenon is likely to occur in the upper portion due to the sound insulation performance of the floor impact sound. By doing so, the resonance phenomenon of the thin plate portion above the hollow material 13 in the synthetic floor board 20 can be alleviated.

また、リブ１１の周囲の中空材１３において台座部１３ｂの高さｈを低くし、かつ、中空材１３に小幅の平坦部１３ｄを設けて切欠部１３ｃを形成することで、各リブ１１と後打ちのコンクリート２１との一体性が向上し、床衝撃時に一体として振動する性能を確保でき、合成スラブの床衝撃音の遮音性能の向上に寄与する。また、工場製作のリブ付き床板１０（下板）と現場打ちコンクリート２１（上板）との一体性が向上することで、長期たわみの進行における上板と下板のずれも効果的に抑制できる。   Further, in the hollow material 13 around the rib 11, the height h of the pedestal portion 13b is lowered, and the hollow material 13 is provided with a small flat portion 13d to form the notch portion 13c. The unity with the cast concrete 21 is improved, and the ability to vibrate as a unit at the time of floor impact can be secured, contributing to the improvement of the sound insulation performance of the floor impact sound of the synthetic slab. In addition, since the integrity of the factory-made ribbed floor plate 10 (lower plate) and the cast-in-place concrete 21 (upper plate) is improved, the displacement between the upper plate and the lower plate during the long-term deflection can be effectively suppressed. .

また、中空材１３は、図１の破線で示すように、内部がくり抜かれた空洞部１３ｅを設けてもよい。図１の空洞部１３ｅについて図５を参照して更に説明する。図５は、図２の中空材の短手方向に切断してみた断面図（ａ）、長手方向に切断してみた断面図（ｂ）及び底面図（ｃ）である。   Further, the hollow member 13 may be provided with a hollow portion 13e whose interior is hollowed out as shown by a broken line in FIG. The cavity 13e in FIG. 1 will be further described with reference to FIG. FIG. 5 is a cross-sectional view (a) of the hollow member of FIG. 2 cut in the short direction, a cross-sectional view (b) and a bottom view (c) of cut in the longitudinal direction.

中空材１３の空洞部１３ｅは、図５（ａ）〜（ｃ）のように、中空材１３の底面から台座部１３ｂを通り略半円状部１３ａまで先端が半円状になって延びており、複数の空洞部１３ｅが長手方向に２列になって並んでいる。中空材１３は、発泡プラスチック材料により成型金型を用いて製造できるが、この成型の際に発泡プラスチック材料の節約を図ることができる。   As shown in FIGS. 5A to 5C, the hollow portion 13e of the hollow member 13 has a semicircular tip extending from the bottom surface of the hollow member 13 through the pedestal portion 13b to a substantially semicircular portion 13a. The plurality of hollow portions 13e are arranged in two rows in the longitudinal direction. The hollow material 13 can be manufactured by using a molding die made of a foamed plastic material, and the foamed plastic material can be saved during this molding.

また、図５（ｂ）のように、中空材１３には長手方向の両端面に段差１３ｆを形成しており、中空材１３を組み合わせたとき、２つの段差１３ｆにより、長手方向に延びる上面から凹んだスリット２５が形成されるようになっている。   Further, as shown in FIG. 5 (b), the hollow member 13 is formed with a step 13f on both end faces in the longitudinal direction. When the hollow member 13 is combined, the two steps 13f cause the upper part to extend in the longitudinal direction. A recessed slit 25 is formed.

また、図３のように、連結一体型中空材１３’の場合は、スリット２５を長手方向に延びる上面から凹んでその中央位置に設けている。   Further, as shown in FIG. 3, in the case of the connection-integrated hollow material 13 ', the slit 25 is provided at the center position by being recessed from the upper surface extending in the longitudinal direction.

図６は、図３の中空材１３’を用いた多数枚のリブ付き床板１０を積層して積み重ねた状態を示す正面図である。図６に示すように、台３０の上にりん木３１を介して一段目のリブ付き床板１０を複数枚並べてスリット２５にりん木３１を配置し、りん木３１の上に同様に二段目のリブ付き床板１０を複数枚並べるようにして多数枚のリブ付き床板１０を複数段にして積み重ねる。   FIG. 6 is a front view showing a state in which a plurality of ribbed floor boards 10 using the hollow material 13 ′ of FIG. 3 are stacked and stacked. As shown in FIG. 6, a plurality of first-stage ribbed floor boards 10 are arranged on a table 30 via a phosphorus tree 31, and the phosphorus tree 31 is arranged in the slit 25. A plurality of ribbed floor boards 10 are stacked in a plurality of stages so that a plurality of ribbed floor boards 10 are arranged.

上述のようなリブ付き床板１０を工場にストックしたり工場から運搬するときには、多数枚のリブ付き床板を積層することが必要になるが、このとき、図６のように、中空材のスリット２５にりん木を配置することで、多数枚のリブ付き床板１０を容易に積み重ねることができる。   When the ribbed floor plate 10 as described above is stocked or transported from the factory, it is necessary to stack a large number of ribbed floorboards. At this time, as shown in FIG. It is possible to easily stack a large number of ribbed floorboards 10 by arranging a phosphorus tree.

この場合、スリット２５をりん木３１のサイズに合わせて形成しておくことが好ましい。また、リブ付き床板１０の現場への搬送のときには、現場でのリブ付き床板１０の設置の順番にトラックに積載することが求められるが、この際に、各リブ付き床板１０に対して中空材のスリット２５が一定間隔で対称に並ぶように設置すれば、リブ付き床板１０の長さがまちまちになっても、適切なりん木設置位置を選択することが可能となる。   In this case, it is preferable to form the slit 25 according to the size of the phosphorus tree 31. Further, when transporting the ribbed floor board 10 to the site, it is required to load the ribbed floor board 10 on the truck in the order of installation of the ribbed floor board 10. If the slits 25 are arranged so as to be symmetrically arranged at regular intervals, it is possible to select an appropriate position for setting the timber even if the length of the ribbed floor board 10 varies.

以上のように、本実施の形態によれば、合成床板２０の重量を軽減することができるとともに、リブ１１と中空材１３との間に切欠部１３ｃを設けることで、リブ付き床板１０と後打ちコンクリート２１との一体性を向上でき、また、工場ストック時や現場搬入時の積層高さを従来品と変えることなく対応できる。また、特に、ロングスパンを有する集合住宅等の建物の床板構築工法として、中空材の容量を最大化することができ、床板（スラブ）の重量の軽減を図り、建物の構造体としての負担の軽減を図ることができる。   As described above, according to the present embodiment, the weight of the composite floor board 20 can be reduced, and the notched portion 13c is provided between the rib 11 and the hollow material 13, so that the floor board with ribs 10 and the rear floor board 10 can be rearranged. The unity with the cast concrete 21 can be improved, and the stacking height at the time of factory stock or on-site delivery can be handled without changing from the conventional product. In particular, as a floorboard construction method for buildings such as apartment buildings with long spans, the capacity of the hollow material can be maximized, the weight of the floorboard (slab) can be reduced, and the burden on the building structure can be reduced. Mitigation can be achieved.

以上のように本発明を実施するための最良の形態について説明したが、本発明はこれらに限定されるものではなく、本発明の技術的思想の範囲内で各種の変形が可能である。例えば、中空材の最頂部は、図１，図２では、略半円状に構成したが、本発明はこれに限定されず、リブの上面よりも突き出ていれば他の形状であってもよく、例えば、略長円状や平坦な頂部や多角形の頂部等であってもよい。   As described above, the best mode for carrying out the present invention has been described. However, the present invention is not limited to these, and various modifications are possible within the scope of the technical idea of the present invention. For example, in FIG. 1 and FIG. 2, the topmost portion of the hollow material is configured in a substantially semicircular shape, but the present invention is not limited to this, and may have other shapes as long as it protrudes from the upper surface of the rib. For example, a substantially oval shape, a flat top part, a polygonal top part, etc. may be sufficient.

本実施の形態によるリブ付き床板を示す側面図である。It is a side view which shows the floor board with a rib by this Embodiment. 図１の中空材の正面図（ａ）及び側面図（ｂ）である。It is the front view (a) and side view (b) of the hollow material of FIG. 図２の中空材を一体に連結した構成の連結一体型中空材を示す側面図である。It is a side view which shows the connection integrated hollow material of the structure which connected the hollow material of FIG. 2 integrally. 図１のリブ付き床板を組み合わせコンクリートが現場打ちされて構成された合成床板を示す側面図である。It is a side view which shows the synthetic floor board comprised by combining the floor board with a rib of FIG. 図２の中空材の短手方向に切断してみた断面図（ａ）、長手方向に切断してみた断面図（ｂ）及び底面図（ｃ）である。It is sectional drawing (a) cut | disconnected in the transversal direction of the hollow material of FIG. 2, sectional drawing (b) cut | disconnected in the longitudinal direction, and bottom view (c). 図３の中空材１３’を用いた多数枚のリブ付き床板１０を積層して積み重ねた状態を示す正面図である。It is a front view which shows the state which laminated | stacked and piled up the many floor board 10 with a rib using the hollow material 13 'of FIG. 従来の合成床板を示す側面図である。It is a side view which shows the conventional synthetic floor board.

符号の説明Explanation of symbols

１０ リブ付き床板
１１ リブ
１１ａ リブの上面
１２ ＰＣ鋼線
１３ 中空材
１３’ 連結一体型中空材
１３ａ 略半円状部
１３ｂ 台座部
１３ｃ 切欠部
１３ｄ 平坦部
１３ｅ 空洞部
１３ｆ 段差
２０ 合成床板
２１ コンクリート
２２ ジョイント部
２５ スリット
３１ りん木
Ｔ 合成床板２０の厚さ
ｘ 切欠部１３ｃの水平距離
ｙ 切欠部１３ｃの深さ

DESCRIPTION OF SYMBOLS 10 Floor plate with rib 11 Rib 11a Upper surface of rib 12 PC steel wire 13 Hollow material 13 'Connection-integrated hollow material 13a Substantially semicircular portion 13b Pedestal portion 13c Notch portion 13d Flat portion 13e Hollow portion 13f Step 20 Composite floor plate 21 Concrete 22 Joint part 25 Slit 31 Rinki T Thickness of synthetic floor board 20 x Horizontal distance of notch 13c y Depth of notch 13c

Claims (10)

ＰＣ鋼線を内蔵した複数のリブと、前記リブ間に設置された中空材と、を備えるリブ付き床板であって、
前記中空材が前記リブ間において前記リブの上面よりも突き出た最頂部を有することを特徴とするリブ付き床板。 A ribbed floor board comprising a plurality of ribs incorporating a PC steel wire, and a hollow material installed between the ribs,
A floor board with ribs, wherein the hollow member has an uppermost portion protruding from the upper surface of the rib between the ribs. 前記中空材が前記リブに接する部分で切り欠かれた切欠部を有し、
前記リブの上面の突出部が前記中空材の切欠部の上面よりも突き出ている請求項１に記載のリブ付き床板。 The hollow material has a notch cut out at a portion in contact with the rib,
The ribbed floor board according to claim 1, wherein the protruding portion on the upper surface of the rib protrudes from the upper surface of the cutout portion of the hollow material. 前記切欠部は、前記リブの上面から深さが２０ｍｍ以上、前記リブの上面の突出部の突出際からの水平距離が２０ｍｍ以上となるように設けられた請求項２に記載のリブ付き床板。   The ribbed floor board according to claim 2, wherein the notch is provided so that a depth is 20 mm or more from an upper surface of the rib and a horizontal distance from a protrusion of the protruding portion on the upper surface of the rib is 20 mm or more. 前記中空材の断面が略半円形状である請求項１，２または３に記載のリブ付き床板。   The floor board with a rib according to claim 1, 2 or 3, wherein a cross section of the hollow material is substantially semicircular. 前記中空材の内部がくりぬかれている請求項１乃至４のいずれか１項に記載のリブ付き床板。   The ribbed floor board according to any one of claims 1 to 4, wherein an interior of the hollow material is hollowed out. 前記中空材の前記リブの長さ方向に沿った上面に一定間隔で凹んだスリットを設けた請求項１乃至５のいずれか１項に記載のリブ付き床板。   The floor board with a rib of any one of Claim 1 thru | or 5 which provided the slit dented by the fixed space | interval in the upper surface along the length direction of the said rib of the said hollow material. 前記中空材を発泡プラスチック材料により成形し、前記スリットを前記中空材の中央部または端部で形成させる請求項６に記載のリブ付き床板。   The floor board with a rib according to claim 6, wherein the hollow material is formed of a foamed plastic material, and the slit is formed at a central portion or an end portion of the hollow material. 前記スリットの配置間隔を０．５ｍ乃至２．０ｍの範囲内で一定間隔とする請求項６または７に記載のリブ付き床板。   The floor board with ribs according to claim 6 or 7, wherein the arrangement interval of the slits is a constant interval within a range of 0.5 m to 2.0 m. 前記中空材の中心位置対して前記スリットを対称に配置した請求項６，７または８に記載のリブ付き床板。   The floor board with a rib according to claim 6, 7 or 8, wherein the slits are arranged symmetrically with respect to a center position of the hollow material. 請求項１乃至９のいずれか１項に記載のリブ付き床板を所定数だけ設置し、その設置場所でコンクリートを打設し前記中空材を埋め込むことで構成されることを特徴とする合成床板構造。

A synthetic floor board structure comprising: a predetermined number of ribbed floor boards according to any one of claims 1 to 9; and a concrete is placed in the installation place and the hollow material is embedded. .

JP2005343649A 2005-11-29 2005-11-29 Ribbed floorboard and composite floorboard structure using ribbed floorboard Expired - Fee Related JP4679354B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101190385B1 (en) 2010-02-04 2012-10-11 주식회사 대흥 Half Precast Concrete Slab Capable of Topping concrete Reduction and Improvement of Attachment Efficiency
US20150001764A1 (en) * 2012-02-14 2015-01-01 Ajou University Industry-Academic Cooperation Foundation Mold for construction structure and method for manufacturing construction structure using same
KR101532430B1 (en) * 2013-12-12 2015-06-29 주식회사 하이브릭스이앤씨 Methods for manufacture and construction of hybrid-type rib slab having increased rib height
JP2015208862A (en) * 2014-04-23 2015-11-24 隆幸 上田 Production method of half-precast slab and half-precast slab

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565706U (en) * 1979-06-28 1981-01-19
JPH0320613U (en) * 1989-07-10 1991-02-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565706U (en) * 1979-06-28 1981-01-19
JPH0320613U (en) * 1989-07-10 1991-02-28

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101190385B1 (en) 2010-02-04 2012-10-11 주식회사 대흥 Half Precast Concrete Slab Capable of Topping concrete Reduction and Improvement of Attachment Efficiency
US20150001764A1 (en) * 2012-02-14 2015-01-01 Ajou University Industry-Academic Cooperation Foundation Mold for construction structure and method for manufacturing construction structure using same
KR101532430B1 (en) * 2013-12-12 2015-06-29 주식회사 하이브릭스이앤씨 Methods for manufacture and construction of hybrid-type rib slab having increased rib height
JP2015208862A (en) * 2014-04-23 2015-11-24 隆幸 上田 Production method of half-precast slab and half-precast slab

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