JP2015175196A - Construction method of void slab - Google Patents

Construction method of void slab Download PDF

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JP2015175196A
JP2015175196A JP2014054240A JP2014054240A JP2015175196A JP 2015175196 A JP2015175196 A JP 2015175196A JP 2014054240 A JP2014054240 A JP 2014054240A JP 2014054240 A JP2014054240 A JP 2014054240A JP 2015175196 A JP2015175196 A JP 2015175196A
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slab
void
resin plate
beams
foamed resin
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JP6431676B2 (en
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栄二 白澤
Eiji Shirasawa
栄二 白澤
知寛 北村
Tomohiro Kitamura
知寛 北村
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Taisei Corp
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Taisei Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a construction method of a void slab capable of surely forming a hollow part.SOLUTION: A construction method of a void slab comprises a plurality of beams 10, a lower side slab 11 and an upper side slab 12, and constructs the void slab 1 having a hollow part 20 enclosed by the plurality of beams 10, the lower side slab 11 and the upper side slab 12. This void slab construction method comprises a step S1 of constructing the lower side slab 11, a step S2 of building up a form material 30 composed of a foam resin plate of the hollow part 20 in an upper surface of the lower side slab 11 and bonding this form material 20 and the lower side slab 11 by urethane foam 34 and a step S3 of burying the form material 30 in concrete by placing the concrete up to a height of an upper surface of the upper side slab 12.

Description

本発明は、コンクリート造建物において、スラブ内部に中空部を有するボイドスラブの構築方法に関する。   The present invention relates to a method for constructing a void slab having a hollow portion inside a slab in a concrete building.

従来より、コンクリート造建物のスラブ構造の１つとして、スラブの内部に中空部を設けたボイドスラブがある。このようなボイドスラブの中空部の構築方法として、例えば、以下のような方法がある。
第１に、スラブ内に合板を箱状に形成して捨て型枠として配置し、この状態でコンクリートの打設を行うことで、スラブの内部に中空部を構築する方法がある（特許文献１参照）。
第２に、空調用配管を型枠材と兼ねて配置し、この状態でコンクリートの打設を行うことで、この空調用配管の内部を中空部とする方法がある（特許文献２参照）。
第３に、スラブ内に立方体や球体などの無垢の発泡スチロール材を捨て型枠として配置し、この状態でコンクリートの打設を行うことで、スラブの内部に中空部を構築する方法がある。 Conventionally, as one of the slab structures of a concrete building, there is a void slab in which a hollow portion is provided inside the slab. As a method for constructing the hollow portion of such a void slab, for example, there are the following methods.
First, there is a method of forming a hollow portion inside a slab by forming a plywood in a box shape in a slab and arranging the plywood as a discarded formwork and placing concrete in this state (Patent Document 1). reference).
Secondly, there is a method in which the air conditioning pipe is also used as a formwork material, and the concrete is placed in this state so that the inside of the air conditioning pipe is a hollow portion (see Patent Document 2).
Thirdly, there is a method of constructing a hollow portion inside the slab by placing solid foamed polystyrene material such as a cube or a sphere in the slab as a discarded formwork and placing concrete in this state.

特開２００３−３２８４８７号公報JP 2003-328487 A 特開２００８−１３３６８８号公報JP 2008-133688 A

しかしながら、上記のようなボイドスラブの構築方法では、以下のような課題があった。
第１の方法では、合板を型枠材として所定位置に固定するために、スラブ型枠にセパレータや釘等の固定冶具を用いる必要があった。また、中空部を合板型枠で構築すると、型枠を固定するためにスラブ躯体に断面欠損が生じるおそれがあった。また、中空部の体積が大きくなると、型枠材を補強するために多数の補強材が必要になり、型枠重量が増大する、という問題があった。 However, the void slab construction method as described above has the following problems.
In the first method, it is necessary to use a fixing jig such as a separator or a nail for the slab mold in order to fix the plywood in a predetermined position as a mold material. Further, when the hollow portion is constructed of a plywood mold, there is a risk that a cross-sectional defect may occur in the slab housing in order to fix the mold. Further, when the volume of the hollow portion is increased, a large number of reinforcing materials are required to reinforce the formwork material, and there is a problem that the weight of the formwork increases.

また、第２の方法では、中空部を任意の形状にすることができない、という問題があった。
また、第３の方法では、中空部を形成するのに無垢の発砲スチロール材を使用するため、建設コストが高額となっていた。 Further, the second method has a problem that the hollow portion cannot be formed into an arbitrary shape.
In the third method, since a solid foamed polystyrene material is used to form the hollow portion, the construction cost is high.

本発明は、躯体を断面欠損させることなく、任意の形状でかつ軽量の中空部を低コストで形成できるボイドスラブの構築方法を提供することを目的とする。   An object of this invention is to provide the construction method of the void slab which can form the lightweight hollow part of arbitrary shapes at low cost, without making a cross-sectional defect | deletion of a housing.

請求項１に記載のボイドスラブの構築方法は、所定方向に並んで配置された複数の梁（例えば、後述の梁１０）と、当該複数の梁の下端同士を連結する下側スラブ（例えば、後述の下側スラブ１１）と、前記複数の梁の上端同士を連結する上側スラブ（例えば、後述の上側スラブ１２）と、を備え、前記複数の梁、下側スラブ、および上側スラブで囲まれた中空部（例えば、後述の中空部２０）を有するボイドスラブ（例えば、後述のボイドスラブ１）の構築方法であって、下側スラブを構築する工程（例えば、後述のステップＳ１）と、当該下側スラブの上面に、前記中空部の型枠材として発泡樹脂板（例えば、後述の型枠材３０）を建て込むとともに、当該発泡樹脂板と前記下側スラブとを接着材で接着する工程（例えば、後述のステップＳ２）と、上側スラブの上面の高さまでコンクリートを打設して、前記発泡樹脂板をコンクリート中に埋設する工程（例えば、後述のステップＳ３）と、を備えることを特徴とする。   The void slab construction method according to claim 1 is a method of constructing a plurality of beams arranged in a predetermined direction (for example, a beam 10 described later) and a lower slab for connecting lower ends of the plurality of beams (for example, described later). A lower slab 11) and an upper slab (for example, an upper slab 12 described later) connecting the upper ends of the plurality of beams, and surrounded by the plurality of beams, the lower slab, and the upper slab A method for constructing a void slab (for example, a void slab 1 described later) having a hollow portion (for example, a hollow portion 20 described later), a step of constructing a lower slab (for example, step S1 described later), and the lower slab A foamed resin plate (for example, a mold material 30 described later) as a mold material for the hollow portion, and a step of adhering the foamed resin plate and the lower slab with an adhesive (for example, The steps described below And S2), and Da設 concrete up to the upper surface of the upper slab height, wherein the step of foaming resin plate embedded in the concrete (e.g., characterized in that it comprises a step S3) will be described later.

請求項２に記載のボイドスラブの構築方法は、前記型枠材としての発泡樹脂板は、前記下側スラブの上に設けられて前記梁の側面を覆う一対の壁部材（例えば、後述の壁部材３１）と、前記下側スラブの上に設けられて当該一対の壁部材同士を所定間隔おきに連結する補強部材（例えば、後述の補強部材３２）と、前記壁部材および補強部材の上に設けられて前記上側スラブの底面を覆う天井部材（例えば、後述の天井部材３３）と、を備えることを特徴とする。   The void slab construction method according to claim 2, wherein the foamed resin plate as the formwork material is provided on the lower slab and covers a pair of wall members (for example, a wall member described later) 31), a reinforcing member provided on the lower slab and connecting the pair of wall members at predetermined intervals (for example, a reinforcing member 32 described later), and provided on the wall member and the reinforcing member. And a ceiling member (for example, a ceiling member 33 described later) covering the bottom surface of the upper slab.

請求項３に記載のボイドスラブの構築方法は、前記接着材は、現場発泡の発泡ウレタン材（例えば、後述の発泡ウレタン材３４）であり、前記壁部材、補強部材、および天井部材は、テープ（例えば、後述のテープ３５）で仮固定されることを特徴とする。   The void slab construction method according to claim 3, wherein the adhesive is a foamed urethane material (for example, a foamed urethane material 34 described later), and the wall member, the reinforcing member, and the ceiling member are tapes ( For example, the tape is temporarily fixed with a tape 35) described later.

ここで、下側スラブとしては、フルプレキャスト板、ハーフプレキャスト板、現場打設コンクリートが含まれる。
また、接着材としては、現場発泡の発砲ウレタン材、接着剤、発泡基材を使用した両面テープが挙げられる。 Here, as a lower slab, a full precast board, a half precast board, and on-site placement concrete are contained.
Examples of the adhesive include in-situ foamed urethane material, an adhesive, and a double-sided tape using a foam base material.

本発明によれば、中空部を形成する際に、梁の側面を一対の壁部材で覆うとともに、これら一対の壁部材同士を所定間隔おきに連結する補強部材を設けた。よって、この補強部材は、壁部材が建て込み位置からずれるのを防止する支保工として機能する。   According to the present invention, when the hollow portion is formed, the side surface of the beam is covered with the pair of wall members, and the reinforcing member that connects the pair of wall members at a predetermined interval is provided. Therefore, this reinforcing member functions as a support for preventing the wall member from shifting from the built-in position.

また、壁部材および補強部材を発泡樹脂板で形成したので、型枠材が軽量でかつある程度の剛性を有する。さらに、型枠材の切断加工が容易であるため、中空部を任意の形状にできるうえに、施工性を向上できる。
また、中空部の型枠材として発泡樹脂板を組み合わせたので、無垢の発泡樹脂材を用いないから、中空部を低コストで形成できる。 Further, since the wall member and the reinforcing member are formed of the foamed resin plate, the mold material is light and has a certain degree of rigidity. Furthermore, since the cutting work of the mold material is easy, the hollow portion can be formed into an arbitrary shape and the workability can be improved.
Further, since the foamed resin plate is combined as the mold material for the hollow portion, a solid foamed resin material is not used, so that the hollow portion can be formed at low cost.

また、接着材としての発泡ウレタン材を、例えば、下側スラブ上の壁部材の内壁面および補強部材の一方の壁面のみに略コ字状をなすように吹き付けて、下側スラブと中空部の型枠材とを固定した。
そして、吹き付けた発泡ウレタン材が硬化するまでの期間、型枠材の位置がずれないように、型枠材同士をテープで仮固定する。
なお、発泡ウレタン材の吹付作業は、壁部材と補強部材を下側スラブ上に建て込んだ後、一端側から他端側に向かって順次実施する。 Further, the urethane foam material as the adhesive is sprayed, for example, on the inner wall surface of the wall member on the lower slab and only one wall surface of the reinforcing member so as to form a substantially U-shape, so that the lower slab and the hollow portion The formwork material was fixed.
Then, the mold frame materials are temporarily fixed with a tape so that the position of the mold frame materials does not shift during the period until the foamed urethane material that has been sprayed is cured.
The urethane foam material spraying operation is sequentially performed from one end side to the other end side after the wall member and the reinforcing member are built on the lower slab.

このように、壁部材の内壁面に発泡ウレタン材を吹き付けたので、コンクリート躯体の断面欠損を防止できる。   As described above, since the foamed urethane material is sprayed on the inner wall surface of the wall member, it is possible to prevent the cross-sectional defect of the concrete frame.

また、発泡樹脂板を捨て型枠に用いて中空部を形成することで、上下階の室内からボイドスラブのコンクリート躯体を介して外部に熱移動する熱量を減少でき、断熱性に優れる。   Further, by forming the hollow portion using the foamed resin plate as a discarded mold, it is possible to reduce the amount of heat transferred from the interior of the upper and lower floors to the outside through the concrete casing of the void slab, and the heat insulation is excellent.

本発明の一実施形態に係るボイドスラブの水平断面図である。It is a horizontal sectional view of a void slab concerning one embodiment of the present invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 前記実施形態に係るボイドスラブを構築する手順のフローチャートである。It is a flowchart of the procedure which builds the void slab which concerns on the said embodiment. 前記実施形態に係るボイドスラブを構築する手順を説明するための断面図（その１）である。It is sectional drawing (the 1) for demonstrating the procedure which builds the void slab which concerns on the said embodiment. 前記実施形態に係るボイドスラブを構築する手順を説明するための断面図（その２）である。It is sectional drawing (the 2) for demonstrating the procedure which builds the void slab which concerns on the said embodiment. 前記実施形態に係るボイドスラブを構築する手順を説明するための断面図（その３）である。It is sectional drawing (the 3) for demonstrating the procedure which builds the void slab which concerns on the said embodiment.

以下、本発明の一実施形態について、図面を参照しながら説明する。
図１は、本発明の一実施形態に係るボイドスラブ１の水平断面図である。図２は、図１のＡ−Ａ断面図である。図３は、図１のＢ−Ｂ断面図である。
ボイドスラブ１は、所定方向に並んで配置された複数の梁１０と、これら複数の梁１０の下端同士を連結する下側スラブ１１と、複数の梁１０の上端同士を連結する上側スラブ１２と、を備える。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a horizontal sectional view of a void slab 1 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 3 is a cross-sectional view taken along line BB in FIG.
The void slab 1 includes a plurality of beams 10 arranged in a predetermined direction, a lower slab 11 that connects the lower ends of the plurality of beams 10, an upper slab 12 that connects the upper ends of the plurality of beams 10, Is provided.

以上の複数の梁１０、下側スラブ１１、および上側スラブ１２で囲まれた空間を、中空部２０とする。この中空部２０の下側スラブ１１の上面には、埋め殺しの型枠材３０が建て込まれている。
具体的には、型枠材３０は、梁１０の側面を覆って互いに対向する一対の壁部材３１と、これら一対の壁部材３１同士を連結する補強部材３２と、壁部材３１および補強部材３２の上に設けられて上側スラブ１２の底面を覆う天井部材３３と、を備える。 A space surrounded by the plurality of beams 10, the lower slab 11, and the upper slab 12 is a hollow portion 20. On the upper surface of the lower slab 11 of the hollow portion 20, a buried mold material 30 is built.
Specifically, the mold member 30 includes a pair of wall members 31 that cover the side surfaces of the beam 10 and face each other, a reinforcing member 32 that connects the pair of wall members 31, and the wall member 31 and the reinforcing member 32. And a ceiling member 33 that covers the bottom surface of the upper slab 12.

壁部材３１は、押出発泡ポリスチレンからなる発砲樹脂板であり、所定方向つまり梁１０の長さ方向に沿って延びている。
補強部材３２は、押出発泡ポリスチレンからなる発砲樹脂板であり、所定方向に交差する方向つまり梁１０の幅方向に延びている。この補強部材３２は、梁１０の長さ方向に所定間隔おきに設けられる。 The wall member 31 is a foamed resin plate made of extruded polystyrene foam, and extends along a predetermined direction, that is, the length direction of the beam 10.
The reinforcing member 32 is a foamed resin plate made of extruded polystyrene foam, and extends in a direction crossing a predetermined direction, that is, in the width direction of the beam 10. The reinforcing members 32 are provided at predetermined intervals in the length direction of the beam 10.

天井部材３３は、押出発泡ポリスチレンからなる発砲樹脂板であり、略水平に設置される。この天井部材３３は、壁部材３１および補強部材３２により支持される。
以上より、補強部材３２は、壁部材３１が倒れるのを防止し、壁部材３１および天井部材３３の型枠支保工として機能することになる。 The ceiling member 33 is a foamed resin plate made of extruded polystyrene foam, and is installed substantially horizontally. The ceiling member 33 is supported by the wall member 31 and the reinforcing member 32.
As described above, the reinforcing member 32 prevents the wall member 31 from falling and functions as a formwork support for the wall member 31 and the ceiling member 33.

以上の壁部材３１、補強部材３２、および天井部材３３は、具体的には、押出発泡ポリスチレンの１８２０ｍｍ×９１０ｍｍ×１００ｍｍ（厚さ）の規格品を、所定の大きさに切断して用いる。また、補強部材３２は、２００〜３００ｍｍ間隔で設ける。   Specifically, the wall member 31, the reinforcing member 32, and the ceiling member 33 are formed by cutting a standard product of 1820 mm × 910 mm × 100 mm (thickness) of extruded expanded polystyrene into a predetermined size. The reinforcing members 32 are provided at intervals of 200 to 300 mm.

以下、ボイドスラブ１を構築する手順について、図４のフローチャートを参照しながら説明する。
まず、ステップＳ１では、図５に示すように、スラブ型枠４０の上に、下側スラブ１１のスラブ鉄筋１４および梁１０の梁鉄筋１５を配筋して、下側スラブ１１の床面のレベルまでコンクリートを打設する。これにより、下側スラブ１１および梁１０の下部を構築する。 Hereinafter, the procedure for constructing the void slab 1 will be described with reference to the flowchart of FIG.
First, in step S1, as shown in FIG. 5, the slab reinforcement 14 of the lower slab 11 and the beam reinforcement 15 of the beam 10 are arranged on the slab form frame 40, and the floor surface of the lower slab 11 is placed. Placing concrete to the level. Thereby, the lower slab 11 and the lower part of the beam 10 are constructed.

ステップＳ２では、図６に示すように、型枠材３０を建て込む。このとき、壁部材３１と下側スラブ１１との接合部、および、補強部材３２と下側スラブ１１との接合部に、現場で発泡させた発泡ウレタン材３４を吹き付けて接着する。
ここで、この発泡ウレタン材３４は、下側スラブ１１上の壁部材３１の互いに対向する内壁面および補強部材３２の一方の壁面のみに、略コ字状をなすように吹き付ける（図１参照）。 In step S2, the formwork 30 is built as shown in FIG. At this time, the foamed urethane material 34 foamed in the field is sprayed and bonded to the joint portion between the wall member 31 and the lower slab 11 and the joint portion between the reinforcing member 32 and the lower slab 11.
Here, the urethane foam material 34 is sprayed on the inner wall surface of the wall member 31 on the lower slab 11 and the one wall surface of the reinforcing member 32 so as to form a substantially U shape (see FIG. 1). .

そして、吹き付けた発泡ウレタン材が硬化するまでの期間、型枠材３０の位置がずれないように、壁部材３１、補強部材３２、および天井部材３３をテープ３５で仮固定する。   Then, the wall member 31, the reinforcing member 32, and the ceiling member 33 are temporarily fixed with the tape 35 so that the position of the formwork material 30 does not shift during the period until the sprayed urethane foam material is cured.

言い換えると、中空部の型枠材３０は、中空部を形成する底板部はなく、両側の壁部材３１と、両側の壁部材３１に交差するように配置した補強部材３２と、天井部材３３と、を備え、これらの部材３１〜３３同士は、位置ずれしないようにテープ３５で仮固定される。
なお、発泡ウレタン材３４の吹付作業は、壁部材３１と補強部材３２を下側スラブ１１上に建て込んだ後、一端側から他端側に向かって順次実施する。 In other words, the mold member 30 of the hollow part has no bottom plate part forming the hollow part, the wall member 31 on both sides, the reinforcing member 32 disposed so as to intersect the wall member 31 on both sides, and the ceiling member 33. These members 31 to 33 are temporarily fixed with a tape 35 so as not to be displaced.
In addition, after the wall member 31 and the reinforcing member 32 are built on the lower slab 11, the blowing operation of the urethane foam material 34 is sequentially performed from one end side to the other end side.

ステップＳ３では、図７に示すように、上側スラブ１２のスラブ筋１６を配筋して、上側スラブ１２の床面のレベルまでコンクリートを打設し、型枠材３０をコンクリート中に埋設する。   In step S3, as shown in FIG. 7, the slab reinforcement 16 of the upper slab 12 is arranged, concrete is laid down to the level of the floor surface of the upper slab 12, and the formwork 30 is embedded in the concrete.

本実施形態によれば、以下のような効果がある。
（１）中空部２０を形成する際、梁１０の側面を一対の壁部材３１で覆うとともに、これら一対の壁部材３１同士を所定間隔おきに連結する補強部材３２を設けた。よって、この補強部材３２は、壁部材３１が建て込み位置からずれるのを防止する支保工として機能する。 According to this embodiment, there are the following effects.
(1) When the hollow portion 20 was formed, the side surface of the beam 10 was covered with a pair of wall members 31, and a reinforcing member 32 was provided to connect the pair of wall members 31 at predetermined intervals. Therefore, the reinforcing member 32 functions as a support that prevents the wall member 31 from being displaced from the built-in position.

また、壁部材３１および補強部材３２を発泡樹脂板で形成したので、型枠材３０が軽量でかつある程度の剛性を有する。さらに、型枠材３０の切断加工が容易であるため、中空部２０を任意の形状にできるうえに、施工性を向上できる。
また、この中空部２０の型枠材３０として発泡樹脂板を組み合わせたので、無垢の発泡樹脂材を用いないから、中空部２０を低コストで形成できる。 Further, since the wall member 31 and the reinforcing member 32 are formed of a foamed resin plate, the mold member 30 is lightweight and has a certain degree of rigidity. Furthermore, since the cutting work of the mold material 30 is easy, the hollow portion 20 can be formed into an arbitrary shape and the workability can be improved.
Further, since the foamed resin plate is combined as the mold member 30 of the hollow part 20, since the solid foamed resin material is not used, the hollow part 20 can be formed at low cost.

また、壁部材３１の内壁面に発泡ウレタン材３４を吹き付けたので、ボイドスラブ１のコンクリート躯体の断面欠損を防止できる。   Moreover, since the foamed urethane material 34 was sprayed on the inner wall surface of the wall member 31, the cross-sectional defect | deletion of the concrete frame of the void slab 1 can be prevented.

また、発泡樹脂板を捨て型枠に用いて中空部２０を形成することで、上下階の室内からボイドスラブ１のコンクリート躯体を介して外部に熱移動する熱量を減少でき、断熱性に優れる。   In addition, by forming the hollow portion 20 using the foamed resin plate as a disposal mold, the amount of heat transferred from the interior of the upper and lower floors to the outside through the concrete frame of the void slab 1 can be reduced, and the heat insulation is excellent.

（２）発泡樹脂板である壁部材３１および補強部材３２と下側スラブ１１との接合部に発泡ウレタン材３４を吹き付けて接着することで、梁１０や上側スラブ１２にコンクリートを打設する際、下側スラブ１１に固定された壁部材３１を、打設コンクリートによる側圧および浮き上がりに対して抵抗させることができる。   (2) When placing concrete on the beam 10 or the upper slab 12 by spraying and bonding the urethane foam material 34 to the joint between the wall member 31 and the reinforcing member 32 which are foamed resin plates and the lower slab 11 The wall member 31 fixed to the lower slab 11 can be made to resist lateral pressure and lifting due to the cast concrete.

なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
例えば、本実施形態では、現場でコンクリートを打設することにより下側スラブ１１を構築したが、これに限らず、下側スラブ１１として、予め工場にてスラブ躯体の全体を製作したフルプレキャスト板や、予め工場にてスラブ躯体の一部を製作したハーフプレキャスト板を用いてもよい。 It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in this embodiment, the lower slab 11 is constructed by placing concrete on-site. However, the present invention is not limited to this, and as the lower slab 11, a full precast plate in which the entire slab housing is manufactured in advance at the factory. Or you may use the half precast board which produced some slab housings in the factory beforehand.

また、本実施形態では、型枠材３０として発泡樹脂板を用いたが、これに限らず、ペーパーハニカムコア材などのハニカムコア材を用いてもよい。
また、本実施形態では、壁部材３１、補強部材３２、および天井部材３３を含んで型枠材３０を構成したが、これに限らず、壁部材のみで型枠材３０を構成してもよい。 In the present embodiment, the foamed resin plate is used as the formwork material 30. However, the present invention is not limited to this, and a honeycomb core material such as a paper honeycomb core material may be used.
In the present embodiment, the mold member 30 is configured to include the wall member 31, the reinforcing member 32, and the ceiling member 33. However, the present invention is not limited to this, and the mold member 30 may be configured by only the wall member. .

１…ボイドスラブ
１０…梁
１１…下側スラブ
１２…上側スラブ
１４…下側スラブのスラブ鉄筋
１５…梁鉄筋
１６…上側スラブのスラブ鉄筋
２０…中空部
３０…型枠材
３１…壁部材
３２…補強部材
３３…天井部材
３４…発泡ウレタン材（接着材）
３５…テープ
４０…スラブ型枠 DESCRIPTION OF SYMBOLS 1 ... Void slab 10 ... Beam 11 ... Lower slab 12 ... Upper slab 14 ... Slab reinforcement of lower slab 15 ... Beam slab 16 ... Slab reinforcement of upper slab 20 ... Hollow part 30 ... Formwork material 31 ... Wall member 32 ... Reinforcement Member 33 ... Ceiling member 34 ... Urethane foam material (adhesive)
35 ... Tape 40 ... Slab formwork

Claims (3)

所定方向に並んで配置された複数の梁と、当該複数の梁の下端同士を連結する下側スラブと、前記複数の梁の上端同士を連結する上側スラブと、を備え、前記複数の梁、下側スラブ、および上側スラブで囲まれた中空部を有するボイドスラブの構築方法であって、
下側スラブを構築する工程と、
当該下側スラブの上面に、前記中空部の型枠材として発泡樹脂板を建て込むとともに、当該発泡樹脂板と前記下側スラブとを接着材で接着する工程と、
上側スラブの上面の高さまでコンクリートを打設して、前記発泡樹脂板をコンクリート中に埋設する工程と、を備えることを特徴とするボイドスラブの構築方法。 A plurality of beams arranged side by side in a predetermined direction, a lower slab that connects lower ends of the plurality of beams, and an upper slab that connects upper ends of the plurality of beams, the plurality of beams, A method for constructing a void slab having a hollow part surrounded by a lower slab and an upper slab,
Building the lower slab;
On the upper surface of the lower slab, a foamed resin plate is built as a mold material for the hollow portion, and the foamed resin plate and the lower slab are bonded with an adhesive,
Placing the concrete to the height of the upper surface of the upper slab, and embedding the foamed resin plate in the concrete. 前記型枠材としての発泡樹脂板は、前記下側スラブの上に設けられて前記梁の側面を覆う一対の壁部材と、前記下側スラブの上に設けられて当該一対の壁部材同士を所定間隔おきに連結する補強部材と、前記壁部材および補強部材の上に設けられて前記上側スラブの底面を覆う天井部材と、を備えることを特徴とする請求項１に記載のボイドスラブの構築方法。   The foamed resin plate as the formwork material is provided on the lower slab to cover a side surface of the beam and a pair of wall members provided on the lower slab. The method for constructing a void slab according to claim 1, comprising: a reinforcing member that is connected at predetermined intervals; and a ceiling member that is provided on the wall member and the reinforcing member and covers a bottom surface of the upper slab. . 前記接着材は、現場発泡の発泡ウレタン材であり、
前記壁部材、補強部材、および天井部材は、テープで仮固定されることを特徴とする請求項２に記載のボイドスラブの構築方法。 The adhesive is an in-situ foamed urethane material,
The said wall member, a reinforcement member, and a ceiling member are temporarily fixed with a tape, The construction method of the void slab of Claim 2 characterized by the above-mentioned.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610436A (en) * 1992-06-27 1994-01-18 Yahagi Kensetsu Kogyo Kk Method for constructing beam-equipped slab
JPH10148005A (en) * 1996-09-18 1998-06-02 Yuka Sansho Kk Burying material for concrete slab base plate and manufacture of concrete slab base plate having burying material disposed therein
JPH10331281A (en) * 1997-05-30 1998-12-15 Sankyo Kogyo:Kk External facing type heat-insulating structure for roof floor of building for cold reserving and execution method thereof
JP2002013278A (en) * 2000-06-29 2002-01-18 Sekisui Plastics Co Ltd Method for installing floor-substrate panel and floor- face structure manufactured by the method
JP2004053970A (en) * 2002-07-22 2004-02-19 Seiko Epson Corp Optical rod, manufacturing method and manufacturing tool therefor, and projector equipped with the same
JP2009052288A (en) * 2007-08-27 2009-03-12 Panahome Corp Floor panel
JP2012112113A (en) * 2010-11-22 2012-06-14 Panasonic Corp Heat insulation panel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610436A (en) * 1992-06-27 1994-01-18 Yahagi Kensetsu Kogyo Kk Method for constructing beam-equipped slab
JPH10148005A (en) * 1996-09-18 1998-06-02 Yuka Sansho Kk Burying material for concrete slab base plate and manufacture of concrete slab base plate having burying material disposed therein
JPH10331281A (en) * 1997-05-30 1998-12-15 Sankyo Kogyo:Kk External facing type heat-insulating structure for roof floor of building for cold reserving and execution method thereof
JP2002013278A (en) * 2000-06-29 2002-01-18 Sekisui Plastics Co Ltd Method for installing floor-substrate panel and floor- face structure manufactured by the method
JP2004053970A (en) * 2002-07-22 2004-02-19 Seiko Epson Corp Optical rod, manufacturing method and manufacturing tool therefor, and projector equipped with the same
JP2009052288A (en) * 2007-08-27 2009-03-12 Panahome Corp Floor panel
JP2012112113A (en) * 2010-11-22 2012-06-14 Panasonic Corp Heat insulation panel

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