JP2004003146A - Waterproof structure of floor slab part such as roof and balcony, and construction method thereof - Google Patents

Waterproof structure of floor slab part such as roof and balcony, and construction method thereof Download PDF

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Publication number
JP2004003146A
JP2004003146A JP2002158575A JP2002158575A JP2004003146A JP 2004003146 A JP2004003146 A JP 2004003146A JP 2002158575 A JP2002158575 A JP 2002158575A JP 2002158575 A JP2002158575 A JP 2002158575A JP 2004003146 A JP2004003146 A JP 2004003146A
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Japan
Prior art keywords
floor
floor slab
roof
base steel
waterproof
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JP2002158575A
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Japanese (ja)
Inventor
Atsushi Horiuchi
堀内 淳
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Misawa Homes Co Ltd
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Misawa Homes Co Ltd
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Priority to JP2002158575A priority Critical patent/JP2004003146A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof structure and a construction method thereof, for improving adaptability of a floor system part such as roof, balcony to sheet waterproofing without using a special underlying steel sheet even for a place where there are inclinations at a step part of the floor slab part. <P>SOLUTION: In this waterproof structure of which a waterproof sheet is constructed on the floor slab part forming a floor surface such as roof, balcony and the floor system part is waterproofed, the underlying steel sheet with L-shape section is provided between floor slab parts forming a step, on respectively opposing upper edge parts of the respective floor slab parts such that the respective flanges are arranged along upper surface and side surface of the floor slab part. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、屋根、バルコニー等の床面を形成する床版部上に防水シートを施工して床版部の防水をするようにした防水構造に係り、特に、陸屋根部の上を防水シートで施工する防水技術に好適な屋根、バルコニー等の床版部の防水構造およびその施工方法に関する。
【0002】
【背景の技術】
従来より、建物には、切妻屋根、寄棟屋根、陸屋根等種々の形態の屋根が設けられている。
例えば、切妻屋根は、大棟の両側にのみ傾斜屋根面を有する屋根であり、寄棟屋根は、大棟から4方向に向かう傾斜屋根面を有する屋根である。これらの屋根は、建物のデザインや地域性、住まう人の好み等により、その形態が選択され、またそれぞれの屋根の形態に応じて、雨樋等が軒側に位置して付設される。
ところで、このような住宅の屋根の一形態として、陸屋根の中央に切妻型の三角形の屋根を配置する構成のものがある(例えば特願2000−252625「建物の屋根構造」など)。
【0003】
この先行技術に開示されている屋根は、単純な飾り屋根ではなく、切妻屋根の小屋裏空間を通って、この小屋裏空間より陸屋根の屋上部分に出られるようにして、開放感のある屋上テラスを提供できる構成となっている。
【0004】
【発明が解決しようとする課題】
ところで、上記した屋根構造は、傾斜屋根面を有する屋根本体を建物本体の上部平面部に置き、この建物本体の上部平面部のうち前記屋根本体の周囲を陸屋根部とした基本構造となっているため、切妻屋根や寄棟屋根のように、軒先に雨樋を設けるような構成を取ることができず、雨水の排水を陸屋根部において設ける構成としなければならない。
そして、屋根本体の小屋裏空間を大きくとるようにすれば、傾斜屋根面を有する屋根本体が必然的に大きくなり、これに反して周囲の陸屋根部の大きさが小さくなって、排水溝の設置に制限を受ける等の問題が生じる。また、このために陸屋根部の構造も複雑化するなどの問題があった。
【0005】
そこで、本発明者等は、このような問題点を解決すべく鋭意研究した結果、図3に示すような屋根構造を発明した。
すなわち、この屋根は、傾斜屋根面を有する屋根本体1を図示せぬ建物本体の上部平面部2に置き、この建物本体の上部平面部2のうち前記屋根本体1の周囲を陸屋根部3とした建物の屋根構造において、四周の陸屋根部3A、3Bを、その長さ方向中央部Mを高くして屋根の四隅Cに向けて下り勾配の水勾配を設けたものである。
このような構造の屋根とすれば、周囲の陸屋根部3A、3Bの中央を高くして、四隅に向けて床版部に水勾配が設けられ、四隅の位置に排水溝4が設けられるので、床版部上を雨水が流れ、陸屋根部の四隅において、排水溝4を介して雨水を排水し得て、その排水溝部の設置スペースを小さくでき、また、陸屋根部の構造を複雑化させることがないとの効果を奏する。
【0006】
ところが、図3に示すような屋根構造とした場合、陸屋根部3A、3Bの直交する部分(図中Y部)において、陸屋根部3A、3Bを構成する床版部が互いに角度を持って段差部が設けられる形態となるため、この部分での防水構造が複雑化する等の新たな課題が生ずる。
【0007】
従来、このような陸屋根部での防水施工は、例えば、シート防水による技術が適用されるが、この場合、床版部5の段差部には、下地鋼板6が設置され、この上に防水シートが設けられるが、床版部5の段差部に互いに傾斜がある場合には、図4に示すように、従来の下地鋼板6を適用すると、一部が床版部5よりも突出してしまい、その使用ができず、特殊な下地鋼板を作らなければならない等の問題点があった。
【0008】
本発明は前記従来技術に鑑みてなされたもので、その目的とするところは、床版部の段差部に互いに傾斜があるような部分においても、特殊な下地鋼板を用いることなく、屋根、バルコニー等の床版部に対するシート防水への適用性を向上させることのできる防水構造およびその施工方法を提供することにある。
【0009】
【課題を解決するための手段】
前述した技術的課題を解決するために本発明では、以下の構造とした。
すなわち、図1に示すように、請求項1にかかる発明は、屋根、バルコニー等の床面を形成する床版部5上に防水シート20a、20bを施工して床版部5の防水をするようにした防水構造であって、段差を形成する床版部5間には、各床版部5の相対向する上縁部5aにおいて、断面L字型をした下地鋼板15を、各フランジ部15a、15bを床版部5の上面並びに側面に沿わせた状態で設けたことを特徴としている(図2参照)。
【0010】
すなわち、この請求項1にかかる床版部の防水構造によれば、断面L字型をした下地鋼板15を、各フランジ部15a、15bが床版部5の上面並びに側面に沿う形態で配置されるため、下地鋼板15のフランジ部15a、15bの高さに干渉を受けることなく、下地鋼板15を床版部5の段差部に取り付けることができ、段差部Dにおいての防水シートの施工を容易に行うことができる。
【0011】
また請求項2記載の発明では、屋根、バルコニー等の床面を、複数の床版部5を組み合わせて構築し、これら床版部5間に段差部Dを設けて床面上に水勾配を設けるようにした床版部5の防水構造であって、前記床版部5の段差部Dに、断面L字型をした一対の下地鋼板15を、自身のフランジ部15a、15bを対向させかつフランジ部15a、15bを段差部D間の目地に差し込む形態で配置し、しかも、床版部5上には、防水シート20a、20bを設けるとともに、床版部5の段差部Dにおいて、上流側(図2右側)の防水シート20aを下流側(図2左側)の防水シート20bに重ねる形態で設けたことを特徴としている。
【0012】
そして、この請求項2にかかる床版部の防水構造によれば、床版部5間に段差部Dを設けて床面上に水勾配を設けるようにした床版部5において、断面L字型をした一対の下地鋼板15のフランジ部15a、15bを床版部の段差部D間の目地に差し込むことにより、下地鋼板15を設置するので、下地鋼板15のフランジ部の高さに干渉を受けることなく、下地鋼板15を床版部5の段差部Dに取り付けることができ、段差部Dにおいての防水シート20a、20bの施工を容易に行うことができる。
【0013】
ここで、本発明では、床版部5の段差部Dにおいて、水勾配が直交する方向に床版部5を設けた構成であることが好ましい。
この構成では、床版部5間に傾斜のある(左右で高さの異なる)段差が設けられるような形態においても、下地鋼板15は、フランジ部が目地の中に差し込まれる形態となって、床版部より突出することがないので、特殊な下地鋼板を設ける必要がないといった利点がある。
【0014】
さらに請求項4記載の発明方法では、屋根、バルコニー等の床面を、複数の床版部5を組み合わせて構築し、床版部5間には下地鋼板15を配置し、防水シート20a、20bを敷設して床版部5を防水施工する方法であって、下地鋼板15を断面L字型をしたアングル材より構成しておき、床版部5の目地のすき間に前記アングル材のフランジ部15a、15bを差し込んで床版部5のすき間に下地鋼板15を配置するように構成した。
この構成では、下地鋼板15を断面L字型をしたアングル材より構成して、このアングル材のフランジ部15a、15bを、床版部5の目地のすき間に差し込むことにより、下地鋼板15を設置するので、下地鋼板15の取付施工が容易であり、また下地鋼板15のフランジ部15a、15bはすき間に差し込まれることにより、フランジ部15a、15bが突出することがない。
【0015】
ここで請求項4に記載の床版部の防水施工方法において、床版部5間に水勾配を形成するための段差部Dを設けておき、下流側の床版部5に配置される下地鋼板15を設置する際に、この下地鋼板15を床版部5の防水シート20bの上から設置し、さらに目地のすき間をなくすように、この下地鋼板15を上流側の下地鋼板15に接するようにして配置すれば、床版部5間のすき間を下地鋼板15で覆うことができるので、好ましい。
【0016】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて説明する。
【0017】
図1に示すように、この実施形態の床版部5の防水構造は、屋根、バルコニー等の床面を、複数の床版部5を組み合わせて構築し、これら床版部5間に段差部Dを設けて床面上に水勾配を設けるようにした床構造に適用され、前記床版部5の段差部Dには、断面L字型をした一対の下地鋼板15が、自身のフランジ部15a、15bを対向させかつフランジ部15a、15bを段差部D間の目地に差し込まれる形態で配置されていることを基本構造としている。
そして、前記床版部5上には、図2に示すように防水シート20が設けられるとともに、床版部5の段差部Dにおいて、上流側の防水シート20aが下流側の防水シート20bに重ね合わされる形態で設けられていることを特徴としている。
【0018】
なお、この床版部5は、例えば図3に示す屋根構造の陸屋根部の床を構築するもので、図面全体では分からないが、矩形をしたALC版などにより構成されて、鉄骨で組まれたフレームの上に適当な水勾配を持つように配置され、さらにこれらALC版が並べられて屋根等の陸屋根部を構成するようになっている。
実施例では、図3に示す陸屋根部3A、3Bが交差する位置の床版部5に、本発明構造が適用された例を示し、下地鋼板15は断面L字型をしたアングル材によりなり、床版部5の目地のすき間に前記アングル材のフランジ部15a、15bを差し込んで床版部5のすき間に下地鋼板15が配置されるようになっている。
そして、下地鋼板15のフランジ部15a、15bはそれぞれ、床版部5の上面および側面に沿うような形態で配置され、また上流側に位置する下地鋼板15は、ここに段差ができないように床版部5の一部を窪ませた凹部5dに納まるように設けられている。
【0019】
次に、図2に示すように、この床版部の防水構造を構成するには、まず矩形をしたALC版(床版部5)を屋根面の割付けに沿って敷設する。
次いで、床版部5の段差部に位置して、下地鋼板15を取り付ける。この取付は、段差の長さに応じて所定寸法に形成した断面L字型の下地鋼板15、15のフランジ部15b、15bを床版部5の目地部に差し込むようにして取り付け、各フランジ部15a、15bを床版部5の上面、側面に沿わせた状態に配置する。
【0020】
ここで、下流側の床版部5に配置される下地鋼板15は、その設置の際に、床版部5上に予め、防水シート20bを施工しておき、この防水シート20bの上から、この下地鋼板15を設置する。
そして、床版部間の目地のすき間をなくすように、この下地鋼板15を上流側の下地鋼板15に接するようにして配置すれば良い。
【0021】
上流側(図2右側)に位置する防水シート20aは、上記の下地鋼板15の取り付け後、これら下地鋼板15を覆うようにして、下流側に位置する防水シート20bの上に重ね、熱溶着等の所定の手段により固定する。
これにより、図2に示すような防水構造が完成する。
【0022】
実施例では、床版部5間に段差部Dを設けて床面上に水勾配を設けるようにした床版部において、断面L字型をした一対の下地鋼板15のフランジ部15a、15bを床版部の段差部D間の目地に差し込むことにより、下地鋼板15を設置するので、下地鋼板15のフランジ部の高さに干渉を受けることなく、下地鋼板15を床版部5の段差部に取り付けることができ、段差部においての防水シートの施工を容易に行うことができる。
【0023】
また実施例では、下地鋼板15を断面L字型をしたアングル材より構成して、このアングル材のフランジ部15a、15bを、床版部5の目地のすき間に差し込むことにより、下地鋼板15を設置する単純施工であるので、下地鋼板15の取付施工が容易であり、また下地鋼板15のフランジ部15a、15bはすき間に差し込まれることにより、フランジ部15a、15bが突出することがない。さらに実施例では、床版部5間に水勾配を形成するための段差部Dを設けておき、下流側の床版部5に配置される下地鋼板15を設置する際に、この下地鋼板15を床版部5の防水シート20bの上から設置し、さらに目地のすき間をなくすように、この下地鋼板15を上流側の下地鋼板15に接するようにして配置しているため、床版部5間のすき間を下地鋼板15で確実に覆うことができる利点がある。
【0024】
なお、本発明は上記実施例の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。
【0025】
【発明の効果】
以上のように本発明によれば、床版部の段差部に互いに傾斜があるような部分においても、特殊な下地鋼板を用いることなく、屋根、バルコニー等の床版部に対するシート防水への適用性を向上させることのできる防水構造およびその施工方法を提供することができる。
【図面の簡単な説明】
【図1】本発明の実施形態の床版部の防水構造が適用された床版部の斜視図である。
【図2】本発明の実施形態の床版部の防水構造が適用された床版部の断面図である。
【図3】従来技術を説明するために示した屋根の斜視図である。
【図4】従来技術を説明するために示した床版部の斜視図である。
【符号の説明】
3A、3B   陸屋根部
5       床版部
15      下地鋼板
15a、15b フランジ部
20a、20b 防水シート
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a waterproof structure in which a waterproof sheet is installed on a floor slab that forms a floor surface of a roof, a balcony, or the like to waterproof the floor slab. The present invention relates to a waterproof structure of a floor slab such as a roof and a balcony suitable for a waterproofing technique to be constructed, and a construction method thereof.
[0002]
[Background technology]
2. Description of the Related Art Conventionally, buildings have various types of roofs, such as a gable roof, a ridge roof, and a flat roof.
For example, the gable roof is a roof having a sloped roof surface only on both sides of the large building, and the stop roof is a roof having a sloped roof surface extending in four directions from the large building. The form of these roofs is selected according to the design of the building, regional characteristics, the preference of the resident, and the like, and rain gutters and the like are provided on the eaves side according to the form of each roof.
By the way, as one form of such a house roof, there is a configuration in which a gable-shaped triangular roof is arranged at the center of a flat roof (for example, Japanese Patent Application No. 2000-252625 “Roof structure of building”).
[0003]
The roof disclosed in this prior art is not a simple decorative roof, but rather passes through the attic space of a gabled roof, so that the roof can be exposed to the roof of the flat roof from this attic space. Can be provided.
[0004]
[Problems to be solved by the invention]
By the way, the above-mentioned roof structure has a basic structure in which a roof main body having an inclined roof surface is placed on an upper flat portion of a building main body, and the periphery of the roof main body in the upper flat portion of the building main body is a land roof portion. Therefore, it is not possible to adopt a configuration in which a gutter is provided at the eaves like a gable roof or a ridge roof, and it is necessary to provide a configuration in which drainage of rainwater is provided on a flat roof portion.
If the space behind the roof of the roof body is made large, the roof body with a sloped roof surface will inevitably become large, and in contrast, the size of the surrounding land roof will become small, and the drainage ditch will be installed. There are problems such as being restricted. In addition, there has been a problem that the structure of the flat roof is complicated.
[0005]
The inventors of the present invention have conducted intensive studies to solve such problems, and as a result, invented a roof structure as shown in FIG.
That is, in this roof, the roof main body 1 having the inclined roof surface is placed on the upper flat portion 2 of the building main body (not shown), and the periphery of the roof main body 1 in the upper flat flat portion 2 of the building main body is set as the land roof portion 3. In the roof structure of the building, four round roofs 3A and 3B are provided with a downwardly inclined water gradient toward the four corners C of the roof with the central portion M in the longitudinal direction being raised.
With a roof having such a structure, the center of the surrounding flat roof portions 3A and 3B is raised, and a water gradient is provided on the floor slab toward the four corners, and the drain grooves 4 are provided at the four corner positions. Rainwater flows on the floor slab, and at the four corners of the flat roof, the rainwater can be drained through the drains 4, and the installation space for the drains can be reduced, and the structure of the flat roof can be complicated. There is an effect of not having.
[0006]
However, in the case of the roof structure shown in FIG. 3, in the orthogonal portions (Y portions in the figure) of the land roof portions 3A and 3B, the floor slabs constituting the land roof portions 3A and 3B have a stepped portion at an angle to each other. , A new problem arises, such as a complicated waterproof structure at this portion.
[0007]
Conventionally, for such waterproof construction on a flat roof, for example, a technique using sheet waterproofing is applied. In this case, a base steel plate 6 is installed on a step portion of the floor slab 5, and a waterproof sheet is placed thereon. However, when the step portions of the floor slab portion 5 are inclined to each other, as shown in FIG. There was a problem that it could not be used and a special base steel plate had to be made.
[0008]
The present invention has been made in view of the above-mentioned conventional technology, and the object thereof is to use a roof, a balcony without using a special base steel sheet, even in a portion where a step portion of a floor slab is inclined with respect to each other. It is an object of the present invention to provide a waterproof structure capable of improving the applicability of the floor slab to sheet waterproofing and the like, and a construction method thereof.
[0009]
[Means for Solving the Problems]
In order to solve the above technical problem, the present invention has the following structure.
That is, as shown in FIG. 1, in the invention according to claim 1, the waterproof sheets 20 a and 20 b are installed on the floor slab 5 that forms a floor surface such as a roof and a balcony to waterproof the floor slab 5. In the waterproof structure as described above, the base steel plate 15 having an L-shaped cross section is placed between the floor slabs 5 forming the steps at the opposing upper edges 5a of the floor slabs 5, and the flanges. It is characterized in that 15a and 15b are provided along the upper surface and side surfaces of the floor slab portion 5 (see FIG. 2).
[0010]
In other words, according to the waterproof structure of the floor slab according to the first aspect, the base steel plate 15 having an L-shaped cross section is arranged such that the flange portions 15a and 15b are along the upper surface and side surfaces of the floor slab 5. Therefore, the base steel plate 15 can be attached to the step portion of the floor slab portion 5 without being interfered by the heights of the flange portions 15a and 15b of the base steel plate 15, and the waterproof sheet can be easily installed at the step portion D. Can be done.
[0011]
According to the second aspect of the present invention, a floor surface such as a roof and a balcony is constructed by combining a plurality of floor slabs 5, and a step D is provided between the floor slabs 5 to form a water gradient on the floor. The waterproof structure of the floor slab portion 5 to be provided, wherein a pair of base steel plates 15 having an L-shaped cross section are opposed to the step portions D of the floor slab portion 5 with their own flange portions 15a and 15b and The flange portions 15a, 15b are arranged in a form to be inserted into joints between the step portions D, and the waterproof sheets 20a, 20b are provided on the floor portion 5, and the upstream side of the step portion D of the floor portion 5 is provided. It is characterized in that the waterproof sheet 20a (right side in FIG. 2) is provided so as to overlap the waterproof sheet 20b on the downstream side (left side in FIG. 2).
[0012]
According to the waterproof structure of the floor slab according to the second aspect, in the floor slab 5 in which the step D is provided between the floor slabs 5 to provide a water gradient on the floor surface, an L-shaped cross section is provided. The base steel sheet 15 is installed by inserting the flange portions 15a and 15b of the pair of shaped base steel sheets 15 into joints between the step portions D of the floor slab, so that interference with the height of the flange part of the base steel sheet 15 is prevented. The base steel sheet 15 can be attached to the step portion D of the floor slab portion 5 without receiving, and the construction of the waterproof sheets 20a and 20b at the step portion D can be easily performed.
[0013]
Here, in the present invention, it is preferable that the step portion D of the floor slab portion 5 has a configuration in which the floor slab portion 5 is provided in a direction in which a water gradient is orthogonal.
In this configuration, even in a form in which an inclined step (having different heights on the left and right sides) is provided between the floor slabs 5, the base steel plate 15 has a form in which the flange portion is inserted into the joint, Since it does not protrude from the floor slab, there is an advantage that there is no need to provide a special base steel plate.
[0014]
Further, in the method according to the fourth aspect of the present invention, a floor surface such as a roof or a balcony is constructed by combining a plurality of floor slabs 5, a base steel plate 15 is arranged between the floor slabs 5, and waterproof sheets 20a and 20b are provided. And laying the floor slab portion 5 in a waterproof manner, wherein the base steel plate 15 is formed of an angle material having an L-shaped cross section, and the flange portion of the angle material is provided between the joints of the floor slab portion 5. The base steel sheet 15 was arranged in the gap of the floor slab 5 by inserting the base plates 15a and 15b.
In this configuration, the base steel sheet 15 is installed by forming the base steel sheet 15 from an angle material having an L-shaped cross section, and inserting the flange portions 15a, 15b of the angle material into the joints of the floor slab part 5. Therefore, the mounting work of the base steel plate 15 is easy, and the flange portions 15a and 15b of the base steel plate 15 are inserted into the gaps so that the flange portions 15a and 15b do not protrude.
[0015]
Here, in the method for waterproofing a floor slab according to claim 4, a step portion D for forming a water gradient between the floor slabs 5 is provided, and a groundwork disposed on the floor slab 5 on the downstream side. When the steel plate 15 is installed, the base steel plate 15 is installed from above the waterproof sheet 20b of the floor slab portion 5, and the base steel plate 15 is brought into contact with the upstream base steel plate 15 so as to eliminate the joint gap. This is preferable because the gap between the floor slabs 5 can be covered with the base steel sheet 15.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
As shown in FIG. 1, the waterproof structure of the floor slab 5 of the present embodiment is such that a floor surface such as a roof or a balcony is constructed by combining a plurality of floor slabs 5 and a step portion is provided between the floor slabs 5. D is applied to a floor structure in which a water gradient is provided on the floor surface, and a pair of base steel plates 15 having an L-shaped cross section is provided at the step portion D of the floor slab portion 5 with its own flange portion. The basic structure is such that the flanges 15a and 15b are opposed to each other and the flanges 15a and 15b are inserted into joints between the steps D.
As shown in FIG. 2, the waterproof sheet 20 is provided on the floor slab 5, and the upstream waterproof sheet 20 a is overlapped with the downstream waterproof sheet 20 b at the step D of the floor slab 5. It is characterized in that it is provided in a form to be performed.
[0018]
In addition, this floor slab part 5 is for constructing a floor of a land roof part having a roof structure shown in FIG. 3, for example, and is not understood in the whole drawing, but is constituted by a rectangular ALC plate or the like and assembled with a steel frame. It is arranged so as to have an appropriate water gradient on the frame, and these ALC plates are arranged side by side to constitute a roof such as a roof.
The embodiment shows an example in which the structure of the present invention is applied to the floor slab portion 5 at the position where the flat roof portions 3A and 3B shown in FIG. 3 intersect. The base steel plate 15 is made of an angle material having an L-shaped cross section. The base steel plate 15 is arranged between the joints of the floor slab 5 by inserting the flange portions 15a and 15b of the angle material into the joints of the floor slab 5.
The flange portions 15a and 15b of the base steel plate 15 are respectively arranged along the upper surface and side surfaces of the floor slab 5, and the base steel plate 15 located on the upstream side has a floor so that no step can be formed here. The printing plate 5 is provided so as to fit in a recess 5 d formed by partially recessing the printing plate 5.
[0019]
Next, as shown in FIG. 2, in order to configure the waterproof structure of the floor slab, first, a rectangular ALC plate (floor slab 5) is laid along the layout of the roof surface.
Next, the base steel plate 15 is attached to the step portion of the floor slab portion 5. This mounting is performed by inserting the flange portions 15b, 15b of the base steel plates 15, 15 having an L-shaped cross section formed into a predetermined size in accordance with the length of the step into the joints of the floor slab portion 5. 15a and 15b are arranged along the upper surface and side surfaces of the floor slab 5.
[0020]
In this case, the base steel plate 15 arranged on the floor slab 5 on the downstream side has a waterproof sheet 20b previously installed on the floor slab 5 at the time of installation, and from the top of the waterproof sheet 20b, This base steel sheet 15 is installed.
Then, the base steel sheet 15 may be arranged so as to be in contact with the base steel sheet 15 on the upstream side so as to eliminate the gap of the joint between the floor slabs.
[0021]
The waterproof sheet 20a located on the upstream side (the right side in FIG. 2) is placed on the waterproof sheet 20b located on the downstream side so as to cover the base steel sheet 15 after the above-mentioned base steel sheet 15 is attached, and heat-sealed. Is fixed by a predetermined means.
Thereby, the waterproof structure as shown in FIG. 2 is completed.
[0022]
In the embodiment, the flange portions 15a and 15b of the pair of base steel plates 15 each having an L-shaped cross section are provided on the floor slab where the step portion D is provided between the floor slab portions 5 to provide a water gradient on the floor surface. Since the base steel plate 15 is installed by being inserted into the joint between the step portions D of the floor slab portion, the base steel plate 15 is connected to the step portion of the floor slab portion 5 without being affected by the height of the flange portion of the base steel plate 15. The waterproof sheet can be easily installed at the step.
[0023]
Further, in the embodiment, the base steel plate 15 is formed of an angle material having an L-shaped cross section, and the flange portions 15a and 15b of the angle material are inserted into the joints of the floor slab 5 so that the base steel plate 15 is formed. Since the installation is a simple construction, the installation work of the base steel plate 15 is easy, and the flange portions 15a, 15b of the base steel plate 15 are inserted into the gaps, so that the flange portions 15a, 15b do not protrude. Further, in the embodiment, a step portion D for forming a water gradient between the floor slab portions 5 is provided, and when the base steel plate 15 disposed on the downstream slab portion 5 is installed, the base steel plate 15 Is installed from above the waterproof sheet 20b of the floor slab portion 5 and the base steel plate 15 is arranged so as to be in contact with the base steel plate 15 on the upstream side so as to eliminate the joint gap. There is an advantage that the gap between them can be reliably covered with the base steel sheet 15.
[0024]
It should be noted that the present invention is not limited to the embodiments described above, but includes modifications and improvements as long as the object of the present invention can be achieved.
[0025]
【The invention's effect】
As described above, according to the present invention, even in a portion where the step portion of the floor slab is inclined to each other, without using a special base steel sheet, application to sheet waterproofing of a floor slab such as a roof and a balcony. It is possible to provide a waterproof structure capable of improving the performance and a method of constructing the waterproof structure.
[Brief description of the drawings]
FIG. 1 is a perspective view of a floor slab to which a waterproof structure of a floor slab according to an embodiment of the present invention is applied.
FIG. 2 is a cross-sectional view of the floor slab to which the waterproof structure of the floor slab according to the embodiment of the present invention is applied.
FIG. 3 is a perspective view of a roof shown for explaining the related art.
FIG. 4 is a perspective view of a floor slab shown for explaining a conventional technique.
[Explanation of symbols]
3A, 3B Flat roof 5 Floor slab 15 Base steel plates 15a, 15b Flanges 20a, 20b Waterproof sheet

Claims (5)

屋根、バルコニー等の床面を形成する床版部上に防水シートを施工して床版部の防水をするようにした防水構造であって、
段差を形成する床版部間には、各床版部の相対向する上縁部において、断面L字型をした下地鋼板が、各フランジ部を床版部の上面並びに側面に沿わせた状態で設けられていることを特徴とする屋根、バルコニー等の床版部の防水構造。
A waterproof structure in which a waterproof sheet is constructed on a floor slab that forms a floor surface of a roof, a balcony, etc. to waterproof the floor slab,
Between the floor slabs forming a step, a base steel sheet having an L-shaped cross section is formed at the upper edges of the floor slabs facing each other, with the respective flanges along the upper surface and side surfaces of the floor slab. A waterproof structure for floor slabs such as roofs, balconies, etc., characterized by being provided with:
屋根、バルコニー等の床面を、複数の床版部を組み合わせて構築し、これら床版部間に段差を設けて床面上に水勾配を設けるようにした床版部の防水構造であって、
前記床版部の段差部には、断面L字型をした一対の下地鋼板が、自身のフランジ部を対向させてかつフランジ部を段差部間の目地に差し込まれる形態で配置され、しかも、床版部上には、防水シートが設けられるとともに、床版部の段差部において、上流側の防水シートが下流側の防水シートに重ねられる形態で設けられていることを特徴とする屋根、バルコニー等の床版部の防水構造。
The floor, such as a roof and a balcony, is constructed by combining a plurality of floor slabs, and a step is provided between the floor slabs to provide a water gradient on the floor, thereby providing a waterproof structure of the floor slab. ,
A pair of base steel plates having an L-shaped cross section are arranged on the step portion of the floor slab portion so that their own flange portions are opposed to each other and the flange portions are inserted into joints between the step portions. A roof, a balcony, or the like, wherein a waterproof sheet is provided on the plate portion, and an upstream waterproof sheet is provided on the downstream waterproof sheet at a step portion of the floor slab portion. The waterproof structure of the floor slab.
請求項1もしくは2に記載の床版部の防水構造であって、床版部の段差部において、水勾配が直交する方向に床版部が設けられていることを特徴とする屋根、バルコニー等の床版部の防水構造。The waterproof structure of a floor slab according to claim 1, wherein the floor slab is provided in a step portion of the floor slab in a direction in which a water gradient is orthogonal to the roof, a balcony, and the like. The waterproof structure of the floor slab. 屋根、バルコニー等の床面を、複数の床版部を組み合わせて構築し、床版部間には下地鋼板を配置し、防水シートを敷設して床版部を防水施工する方法であって、
下地鋼板を断面L字型をしたアングル材より構成しておき、床版部の目地のすき間に前記アングル材のフランジ部を差し込んで床版部のすき間に下地鋼板を配置することを特徴とする屋根、バルコニー等の床版部の防水施工方法。
A method of constructing a floor surface such as a roof and a balcony by combining a plurality of floor slabs, placing a base steel plate between the floor slabs, laying a waterproof sheet and waterproofing the floor slabs,
The base steel sheet is formed of an angle material having an L-shaped cross section, and the base steel sheet is arranged in the gap of the floor slab part by inserting the flange part of the angle material into the joint of the floor slab part. Waterproof construction method for floor slabs such as roofs and balconies.
請求項4に記載の床版部の防水施工方法において、床版部間に水勾配を形成するための段部を設けておき、下流側の床版部に配置される下地鋼板を設置する際に、床版部の防水シートの上から設置し、さらに目地のすき間をなくすように、この下地鋼板を上流側の下地鋼板に接するようにして配置することを特徴とする屋根、バルコニー等の床版部の防水施工方法。In the waterproofing method for a floor slab according to claim 4, a step for forming a water gradient between the floor slabs is provided, and a base steel plate disposed on the downstream slab is installed. A floor, such as a roof or a balcony, wherein the base steel sheet is arranged so as to be in contact with the base steel sheet on the upstream side, so that the base steel sheet is installed above the waterproof sheet of the floor slab portion and further to eliminate gaps in joints. How to waterproof the plate.
JP2002158575A 2002-05-31 2002-05-31 Waterproof structure of floor slab part such as roof and balcony, and construction method thereof Pending JP2004003146A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL427157A1 (en) * 2018-09-21 2019-07-29 Robert Riedel Connector for walls and damp insulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL427157A1 (en) * 2018-09-21 2019-07-29 Robert Riedel Connector for walls and damp insulation

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