JP2004003142A - Roof structure of building - Google Patents

Roof structure of building Download PDF

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Publication number
JP2004003142A
JP2004003142A JP2002158564A JP2002158564A JP2004003142A JP 2004003142 A JP2004003142 A JP 2004003142A JP 2002158564 A JP2002158564 A JP 2002158564A JP 2002158564 A JP2002158564 A JP 2002158564A JP 2004003142 A JP2004003142 A JP 2004003142A
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JP
Japan
Prior art keywords
roof
building
main body
roof structure
side floor
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.)
Pending
Application number
JP2002158564A
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Japanese (ja)
Inventor
Atsushi Horiuchi
堀内 淳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Misawa Homes Co Ltd
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Misawa Homes Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Misawa Homes Co Ltd filed Critical Misawa Homes Co Ltd
Priority to JP2002158564A priority Critical patent/JP2004003142A/en
Publication of JP2004003142A publication Critical patent/JP2004003142A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof structure of a building wherein installation space for a drain channel is reduced, the degree of freedom of the roof body size is increased, using the drain channel even for such a style of roof, and a structure of the deck roof is not complicated in the roof structure in which a roof body having an inclined roof surface is placed on an upper flat part of a building body and the periphery of the roof body is formed into a flat-roof. <P>SOLUTION: In this roof structure of a building of which the roof body having the inclined roof surface is placed on the upper flat part of the building body and surrounding of the roof body of the upper flat part of the building body is a deck roof, the deck roof of four peripheries has a heightened longitudinal center and downward inclined drainage slopes toward four corners of the roof. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、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建物の屋根構造に関する。
【0002】
【従来の技術】
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】
本発明は、上記した技術的背景を考慮しなされたもので、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屋根構造において、その排水溝部の設置スペースを小さくし得て、この種の形態の屋根においても排水溝によって屋根本体の大きさの自由度を増すことができ、また、陸屋根部の構造を複雑化させることのない建物の屋根構造を提供することを目的としている。
【0006】
【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、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であって、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ことを特徴としている。
【0007】
すちわち、この請求項1にかかる建物の屋根構造によれば、四周の陸屋根部3A、3Bの長さ方向中央部Mが陸屋根部3の中で一番高い位置となり、ここを頂点として、屋根の四隅Cに向かって下り勾配の水勾配が設けられる形態となるため、屋根に降った雨水は傾斜屋根面(図示例では屋根本体1)から陸屋根部3へと流れ、陸屋根部3においては、中央部の一番高い位置Mから陸屋根部3の両端Cへと雨水が流れることとなる。
したがって、雨水を屋根の四隅Cに集中させることが可能となり、排水溝等の設置位置をこの四隅Cに設けるようにすれば、排水溝は小さなスペースの中に置くことが可能となる。つまり、陸屋根部3A、3Bにおいては、この陸屋根部3A、3B自身が四隅に向けて水勾配を持っているので、この陸屋根部3A、3B自身に雨水の排水溝を設ける必要がなく、陸屋根部の構造を複雑化させることがないのである。
【0008】
ここで、本発明では、前記建物本体は、複数の建物ユニットを組み合わせて建てられる構成であることが好ましい。
この構成では、建物本体がユニットで形成されているため、これら建物ユニットを工場で製造し、建設現場で組み合わせて施工することで現場での施工作業が迅速に行え、また屋根自体は陸屋根部3と、その上部平面部2に傾斜屋根部1を置く形態の屋根であるため、6面体で上部が平面となる建物ユニットで構成された建物に対しての適用性が高いといった利点がある。
【0009】
さらに本発明では、屋根本体1は切妻屋根により構成されるものであることが好ましい。
この構成では、傾斜屋根部が切妻となるため、妻面に出入り口等を容易に設けることが可能になり、四周の陸屋根部への出入りを容易にすることができる効果がある。
【0010】
また、本発明では、陸屋根部3A、3Bを、屋根の妻側に位置する妻側床部3Aと、屋根の軒側に位置する軒側床部3Bとから構成し、妻側床部3Aを、建物の幅に対応して形成し、軒側床部3Bを、妻側床部3Aの間に配置する形態とし、かつ、妻側床部3Aの両端部に排水溝5を形成する構成が好ましい。
この構成では、一対の妻側床部3Aの間に、一対の軒側床部3Bを配置する形態とし得て、陸屋根部の構成を単純化でき、また、これら2組の床部3A、3Bにそれぞれ別個に水勾配を形成する構成とすることができるので、水勾配の形成も容易にできるなどの利点がある。
【0011】
また本発明では、軒側床部3Bの少なくとも一つに、建物本体より突出するオーバーハング部10の屋根部10Aを連続して形成し、かつこの屋根部10Aも、軒側床部3Bの形態に合わせて自身の長さ方向中央部10Bを高くして左右両側に向かう下り勾配の水勾配とし、しかも屋根部の左右両側に、雨水を軒側床部に向けて流す形態の水勾配10Cを設ける構成とすることが好ましい。
この構成では、建物本体にオーバーハング部10を設けたものにおいて、屋根上面の排水形態を一連のものとすることができ、オーバーハング部10に降った雨水を屋根部側にすべて導水できる利点がある。
【0012】
【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。
図1は屋根の全体構成を示し、この屋根1は、図示せぬ建物本体の上部(上部平面部2)に設けられ、ほぼ正方形をした陸屋根部3と、この陸屋根部3のほぼ中央に設置された切妻型屋根部1とを主体として構成されている。
なお、建物本体としては、本出願人がすでに出願した特願2000−252625「建物の屋根構造」などに示される建物ユニットからなる構成のものなどが好適に適用され、柱および梁などから略箱状に形成された骨組に外壁材や内装材を取り付けて構成された建物ユニットを複数組み合わせて形成されるものである。
【0013】
陸屋根部3は切妻型屋根部1の妻側に位置しほぼ建物本体の幅に等しい大きさの妻側床部3Aと、切妻型屋根部3の軒側に位置し前記妻側床部3Aの間に配置される軒側床板部3Bとを主体として構成されている。
【0014】
妻側床部3Aと軒側床板部3Bは、ともに自身の中央部Mを他の部分よりも高くして両端に向けて下り勾配の水勾配Nが形成されており、図面の矢印に示す方向に雨水が流れ落ちるようになっている。
【0015】
また、これら妻側床部3Aと軒側床部3Bは、例えばALCなどの軽量気泡コンクリートなどからなる床版構造とされ、各床版(図面では3A、3B)の中央部Mが床部の頂点となるように、鉄骨で組まれた骨組みなどの上に固定されるものである。
【0016】
なお、妻側床部3Aの両端部には排水溝5がそれぞれ設けられ、図示せぬ排水枡に雨水を落とすようになっている。
また、軒側床部3Bの両端部はそれぞれ、妻側床部3Aの側面に突き当たる形態で収められ、軒側床部3Bの水勾配で落とされた雨水は軒側床部3Bを通って妻側床部3Aの上面に導かれるようになっている。
【0017】
切妻型屋根部1としては、周囲の床部(陸屋根部3)に囲まれた居室空間を上から覆うもので、その内部には勾配天井の小屋裏空間Sが設けられる。そして、この切妻型屋根部1は、屋根パネルを組み合わせて構成され、床部の設置後設けられるものである。
【0018】
なお、実施例では、軒側床部3Bの一つに建物本体より突出するオーバーハング部10が連続して形成されており、このオーバーハング部10は、軒側床部3Bの水勾配に対応してオーバーハング部10上面10Aに水勾配が設けられ、この水勾配は上面中央部10Bを山高にして両側に下り勾配に形成され、また両端10Cは若干高くされて雨水を軒側床板部21に向けて流すようになっている。
【0019】
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。
例えば、前記実施形態では、屋根本体1を切妻屋根としたが、本発明では、傾斜屋根面を有する構成であれば、この構成に限定されるものではなく、例えば、寄棟屋根であっても良い。
【0020】
【発明の効果】
以上のように本発明によれば、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屋根構造において、その排水溝部の設置スペースを小さくし得て、この種の形態の屋根においても排水溝によって屋根本体の大きさの自由度を増すことができ、また、陸屋根部の構造を複雑化させることのない建物の屋根構造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屋根構造が適用された屋根の斜視図である。
【符号の説明】
1   屋根本体
2   上部平面部
3   陸屋根部
3A  妻側床部
3B  軒側床部
5   排水溝
1   オーバーハング部
10A 上面
10B  中央部
10C  両端
S    小屋裏空間
N    水勾配
C    四隅
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roof structure of a building 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.
[0002]
[Prior art]
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 present invention has been made in view of the above technical background, and a roof main body having an inclined roof surface is placed on an upper flat part of a building main body. In the roof structure, the installation space of the drain can be reduced, and even in this type of roof, the degree of freedom of the size of the roof main body can be increased by the drain, and the structure of the land roof The purpose of the present invention is to provide a roof structure of a building without complicating the structure.
[0006]
[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, a roof main body 1 having an inclined roof surface is placed on an upper flat portion 2 of a building main body (not shown), and A roof structure of a building having a roof body 3 around a roof body 1, wherein four round roof roofs 3 A and 3 B are provided with water having a downward slope toward four corners C of the roof with a central portion M in the longitudinal direction thereof being raised. It is characterized by having a gradient.
[0007]
In other words, according to the roof structure of the building according to the first aspect, the lengthwise central portion M of the four roofs 3A, 3B is the highest position in the roofs 3, and this is the top. The rainwater falling on the roof flows from the sloping roof surface (the roof main body 1 in the illustrated example) to the flat roof portion 3 because the water gradient has a downward slope toward the four corners C of the roof. Means that rainwater flows from the highest position M in the center to both ends C of the flat roof 3.
Therefore, it is possible to concentrate rainwater at the four corners C of the roof, and if the installation positions of the drainage grooves and the like are provided at these four corners C, the drainage grooves can be placed in a small space. That is, in the land roof portions 3A and 3B, since the land roof portions 3A and 3B themselves have water gradients toward the four corners, there is no need to provide rainwater drainage grooves in the land roof portions 3A and 3B themselves. It does not complicate the structure.
[0008]
Here, in the present invention, it is preferable that the building main body is configured to be built by combining a plurality of building units.
In this configuration, since the building main body is formed of units, these building units are manufactured in a factory and assembled at a construction site to perform construction work quickly, and the roof itself is a land roof 3 In addition, since the roof has a configuration in which the inclined roof portion 1 is placed on the upper flat surface portion 2, there is an advantage that the applicability to a building composed of a building unit having a hexahedron and a flat upper portion is high.
[0009]
Further, in the present invention, it is preferable that the roof main body 1 is constituted by a gable roof.
In this configuration, since the sloped roof portion is gable, it is possible to easily provide an entrance or the like on the wife's surface, and there is an effect that it is easy to enter and exit the four-round land roof portion.
[0010]
Further, in the present invention, the flat roof portions 3A and 3B are composed of a wife-side floor portion 3A located on the wife side of the roof and an eave-side floor portion 3B located on the eave side of the roof. The eaves-side floor 3B is arranged between the wife-side floors 3A, and the drainage grooves 5 are formed at both ends of the wife-side floor 3A. preferable.
In this configuration, a pair of eaves-side floors 3B can be arranged between a pair of wife-side floors 3A, so that the configuration of the flat roof can be simplified, and these two sets of floors 3A, 3B can be used. Since a water gradient can be formed separately from each other, there is an advantage that a water gradient can be easily formed.
[0011]
Further, in the present invention, the roof portion 10A of the overhang portion 10 protruding from the building body is continuously formed on at least one of the eave-side floor portions 3B, and the roof portion 10A is also formed in the form of the eave-side floor portion 3B. A water gradient 10C in a form in which rainwater flows toward the eaves-side floor portion on both the left and right sides of the roof portion by raising the central portion 10B in the longitudinal direction of the roof in accordance with the height of the lower portion and raising the central portion 10B in the longitudinal direction. It is preferable to provide such a structure.
In this configuration, in the case where the overhang portion 10 is provided in the building body, the drainage form on the roof upper surface can be a series, and there is an advantage that all the rainwater falling on the overhang portion 10 can be conducted to the roof portion side. is there.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows the entire configuration of the roof. The roof 1 is provided at the upper part (upper plane part 2) of a building body (not shown), and has a substantially square land roof part 3 and a substantially centered land roof part 3. And the gabled roof portion 1 thus formed.
As the main body of the building, a structure composed of building units shown in Japanese Patent Application No. 2000-252625 “Roof structure of building” already applied by the present applicant is suitably applied. It is formed by combining a plurality of building units configured by attaching an outer wall material or an interior material to a skeleton formed in a shape.
[0013]
The flat roof 3 is located on the wife side of the gable roof 1 and has a floor 3A having a size substantially equal to the width of the building body. The eaves-side floor plate portion 3B disposed therebetween is mainly configured.
[0014]
The wife-side floor portion 3A and the eave-side floor plate portion 3B both have their own central portion M higher than the other portions, and a downward water gradient N is formed toward both ends, in the direction indicated by the arrow in the drawing. Rainwater is flowing down.
[0015]
The wife-side floor 3A and the eaves-side floor 3B have a floor slab structure made of, for example, lightweight cellular concrete such as ALC, and the center M of each floor slab (3A, 3B in the drawing) is a floor. It is fixed on a steel frame or the like so as to be the top.
[0016]
Drainage grooves 5 are provided at both ends of the wife-side floor portion 3A, respectively, to drain rainwater into a drainage basin (not shown).
Further, both ends of the eaves-side floor 3B are stored in such a manner as to abut against the side surface of the eaves-side floor 3A, and the rainwater dropped by the water gradient of the eaves-side floor 3B passes through the eaves-side floor 3B. It is configured to be guided to the upper surface of the side floor 3A.
[0017]
The gabled roof 1 covers a living room surrounded by a surrounding floor (land roof 3) from above, and a cabin back space S having a sloping ceiling is provided therein. The gable roof 1 is constructed by combining roof panels and is provided after the floor is installed.
[0018]
In the embodiment, an overhang portion 10 protruding from the building body is continuously formed on one of the eaves-side floor portions 3B, and this overhang portion 10 corresponds to a water gradient of the eaves-side floor portion 3B. Then, a water gradient is provided on the upper surface 10A of the overhang portion 10, and the water gradient is formed on both sides with a mountain height at the upper surface central portion 10B, and the both ends 10C are slightly raised so that rainwater can be supplied to the eaves side floor plate portion 21. It is designed to flow toward.
[0019]
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.
For example, in the above-described embodiment, the roof main body 1 is a gable roof, but the present invention is not limited to this configuration as long as it has a sloped roof surface. good.
[0020]
【The invention's effect】
As described above, according to the present invention, a roof body having a sloped roof surface is placed on an upper flat portion of a building body, and in the roof structure having a roof portion around the roof body in the upper flat portion of the building body, The installation space of the drainage groove can be reduced, and even in this type of roof, the degree of freedom of the size of the roof main body can be increased by the drainage groove, and the structure of the flat roof part is not complicated. The roof structure of the building can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a roof to which a roof structure according to an embodiment of the present invention is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof main body 2 Upper flat part 3 Land roof part 3A Wife side floor part 3B Eaves side floor part 5 Drainage groove 1 Overhang part 10A Upper surface 10B Central part 10C Both ends S Hut back space N Water gradient C Four corners

Claims (5)

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建物の屋根構造であって、
四周の陸屋根部は、その長さ方向中央部を高くして屋根の四隅に向けて下り勾配の水勾配が設けられていることを特徴とする建物の屋根構造。
A roof structure having a roof main body having an inclined roof surface on an upper flat portion of the building main body, and a roof structure including a roof main body around the roof main body in the upper flat portion of the building main body,
The roof structure of the building is characterized in that the flat roof part around the four sides is provided with a downwardly inclined water gradient toward the four corners of the roof with the center in the longitudinal direction being raised.
請求項1に記載の建物の屋根構造において、前記建物本体は、複数の建物ユニットを組み合わせて建てられていることを特徴とする建物の屋根構造。The roof structure of a building according to claim 1, wherein the building body is constructed by combining a plurality of building units. 請求項1に記載の建物の屋根構造において、屋根本体は切妻屋根により構成されていることを特徴とする建物の屋根構造。The roof structure of a building according to claim 1, wherein the roof main body is formed of a gable roof. 請求項1に記載の建物の屋根構造において、陸屋根部は、屋根の妻側に位置する妻側床部と、屋根の軒側に位置する軒側床部とからなり、妻側床部は、建物の幅に対応して形成されるとともに、軒側床部は、妻側床部の間に配置され、かつ、妻側床部の両端部に排水溝が形成されていることを特徴とする建物の屋根構造。In the roof structure of the building according to claim 1, the flat roof portion includes a wife-side floor portion located on the wife side of the roof and an eave-side floor portion located on the eave side of the roof. It is formed corresponding to the width of the building, and the eaves-side floor is disposed between the wife-side floors, and the drainage grooves are formed at both ends of the wife-side floor. Building roof structure. 請求項4に記載の建物の屋根構造において、軒側床部の少なくとも一つには、建物本体より突出するオーバーハング部の屋根部が連続して形成されており、かつこの屋根部は、軒側床部の形態に合わせて自身の長さ方向中央部を高くして左右両側に向かう下り勾配の水勾配が設けられ、しかも屋根部の左右両側には、雨水を軒側床部に向けて流す形態の水勾配が設けられていることを特徴とする建物の屋根構造。The roof structure of a building according to claim 4, wherein at least one of the eave-side floors is formed with a continuous overhanging roof that protrudes from the building body, and the roof includes an eaves. In accordance with the shape of the side floor, a vertical water gradient is provided toward the left and right sides by raising the central part in the length direction of itself, and rainwater is directed to the eaves side floor on both the left and right sides of the roof A building roof structure characterized by a flowing water gradient.
JP2002158564A 2002-05-31 2002-05-31 Roof structure of building Pending JP2004003142A (en)

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