JP4267162B2

JP4267162B2 - Hut structure

Info

Publication number: JP4267162B2
Application number: JP2000029420A
Authority: JP
Inventors: 輝興大島; 和恵皆川
Original assignee: Misawa Homes Co Ltd
Current assignee: Misawa Homes Co Ltd
Priority date: 2000-02-07
Filing date: 2000-02-07
Publication date: 2009-05-27
Anticipated expiration: 2020-02-07
Also published as: JP2001220849A

Description

【０００１】
【発明の属する技術分野】
本発明は、寄棟屋根（方行屋根を含む）に用いられ、特に積雪量の多い地方に好適に用いられる小屋組構造に関する。
【０００２】
【背景の技術】
一般に、床、壁、屋根等に関して予め工場等で製造されたパネルを建築現場で設置することにより住宅を構築するパネル工法が知られている。
上記パネル工法の住宅においては、床、壁、屋根等を構成する各パネルが互いに接合されて、住宅を構成するので、基本的に、柱、梁をほとんど用いないものとなっているが、壁パネルだけで屋根を構成する屋根パネルをすべて支持することが困難なので、屋根を支持する梁が用いられている。
【０００３】
そして、パネル工法の住宅に設けられる寄棟屋根（方形屋根を含む）等の下面を支持するための屋根支持用梁としては、例えば、特開平８−７４３７０号公報に開示されたようないわゆるベント梁が用いられている。
【０００４】
上記ベント梁を使用する小屋組構造においては、住宅の内壁の少なくとも一部を屋根の裏側にまで至るように設け、該内壁の上端部を屋根に接合している。また、ベント梁の登り部の端部を外壁の上端部と接合し、水平部の端部を前記内壁の上端部と接合することにより複数のベント梁が支持され、屋根全体を支持するための小屋組構造が形成される。
従って、屋根の裏側に沿って配置されているベント梁の下側に該ベント梁を支持する梁や束が存在しないので、屋根の裏側の小屋裏空間を比較的広くすることができ、天井を高くしたり、小屋裏に大きな小屋裏収納等のための部屋を設けたりして、小屋裏空間を有効に利用することができる。
【０００５】
【発明が解決しようとする課題】
ところで、上述のような小屋組構造は、屋根及びベント梁を支持するために屋根に至るように設けられる内壁が存在することにより、例えば、住宅の屋根裏が内壁にしきられ、屋根裏全体からなるひとつの小屋裏空間を構築することができないなど、小屋裏空間の利用が制限されている。
【０００６】
また、上述のように、内壁を用いた小屋裏構造においては、同様な形状の屋根でもその下の間取りによって内壁の位置が異なり、内壁の位置により小屋組構造を変える必要があった。すなわち、同様な形状の屋根でも、その小屋組構造を同じにすることができず、かつ、内壁の位置によって、小屋組構造が決まるので、例えば、コスト的に最適な小屋組構造を設計することが困難であった。
【０００７】
一方、積雪量の多い地域では、雪の重みにより屋根に加わる大きな荷重を支えるために、積雪量の少ない地域よりも、屋根の強度を高める必要があり、上述したベント梁を用いた小屋組構造を積雪量の多い地域に適用する場合には、その強度を高める必要がある。
【０００８】
これらのことから、屋根裏全体を一つの小屋裏空間として利用可能で、かつ、積雪量の多い地域に適用可能な小屋組構造が求められている。
【０００９】
本発明は、上記事情に鑑みてなされたものであって、容易な施工作業で広い小屋裏空間を得ることができ、かつ、雪の重みに十分耐えうる程度の構造強度を有する小屋組構造を提供することを目的とする。
【００１０】
【課題を解決するための手段】
上記課題を解決するため、請求項１記載の発明は、例えば、図１等に示すように、屋根の基本構造が寄棟屋根４０及び方行屋根５のように、中央部から四方に流れる四つの屋根面７を有し、棟を除く各屋根面７同士の境が隅棟１０となった屋根を支持する小屋組構造であって、屋根の裏側において、前記四つの屋根面７のうちの一つの屋根面７の下端部側から該屋根面７の傾斜方向に沿って斜め上方に該屋根面７の左右の隅棟１０のうちの一方の隅棟１０に至る登り部１３，２３と、該登り部１３，２３の前記隅棟１０部分の端部から前記屋根面７に隣接する屋根面７の傾斜方向と直交するように水平に延出する水平部１２，２２とを備えたベント梁１，２を有し、同じ隅棟１０を通る前記ベント梁１，２が二本以上を一組として各隅棟１０毎に一組ずつ配置されるとともに、前記ベント梁１，２の水平部１２，２２側の端部が該水平部１２，２２が配置された屋根面７に登り部１３が配置された他のベント梁１のうちの一本に直角に接合されていることを特徴とする。
【００１１】
請求項１記載の発明によれば、小屋組構造において同じ隅棟１０を通る前記ベント梁１，２が少なくとも二本一組として各隅棟１０毎に一組ずつ配置されるとともに、前記ベント梁１，２の水平部１２，２２側の端部が該水平部１２，２２が配置された屋根面７に登り部１３が配置された他のベント梁１のうちの一本に直角に接合されていることにより、容易な施工作業で広い小屋裏空間を得ることができ、かつ、雪の重みにより屋根に加わる大きな荷重に十分耐えうる程度の構造強度を有する小屋組構造を構築できる。
【００１２】
すなわち、本発明では、各屋根面７に二本以上のベント梁１，２の水平部１２，２２が配置されるので、各屋根面７は、基本的に二本以上のベント梁１，２の水平部１２，２２と外壁５０とにより支持されることになり、強度を向上することになる。また、本発明の小屋組構造においては、各ベント梁１，２の水平部１２，２２が他のベント梁１に接合されることにより、ベント梁１，２の水平部１２，２２が自身の登り部１３，２３と他のベント梁１の登り部１３とに支持されることになる。従って、屋根や梁を支持するために内壁を屋根の裏面に至るまで上方に延出させる必要がなく、また、ほぼ同様の形状の屋根において、小屋組構造の共通化を図れ、多量の積雪に耐える強度を付加できるとともに、広い屋根裏空間を得ることができる。
また、内壁の位置に関係なく小屋組構造を決めることができる。更に、このことにより、小屋組構造を対称的な構造として小屋組の各梁をできるだけ共通化してコストの低減を図ることができる。
【００１３】
なお、本発明の小屋組構造は、基本的にパネル工法用の屋根パネルを支持するものであり、各ベント梁に垂木等が取り付けられることはないが、各ベント梁１，２に垂木を取り付けるものとすれば、パネル工法用の屋根パネルを用いる住宅だけではなく、パネル工法用の屋根パネルを用いずに、垂木上に屋根面を構成する面板を取り付けて構築される軸組工法の屋根にも応用可能である。また、屋根以外の躯体は木造に限定されず、鉄骨や鉄筋コンクリート構造にも応用可能である。
【００１４】
請求項２記載の発明は、請求項１記載の小屋組構造において、各組の前記ベント梁１，２のうちの水平部１２が最も高い位置に配置される第一のベント梁１の水平部１２側端部が、該水平部１２が配置される屋根面７と、該屋根面７に登り部１３が配置された他の組の第一のベント梁１の水平部１２が配置される屋根面７との境となる隅棟１０部分で他の組の第一のベント梁１に接合されて四本の第一のベント梁１の水平部１２が四角枠状に配置され、各組のベント梁１，２のうちの第一のベント梁１より水平部２２が低い位置に配置される第二のベント梁２の水平部２２側の端部が、前記他の組の第一のベント梁１の登り部１３に接合され、かつ、第二のベント梁２の水平部２２側の端部近傍から該水平部２２を延長するようにして延長梁３が配置され、該延長梁３の先端部が、該延長梁３が配置される屋根面７と、該屋根面７に登り部２３が配置された他の組の第二のベント梁２の水平部２２が配置される屋根面７との境となる隅棟１０部分で他の組の第二のベント梁２に接合されて四本の第二のベント梁２の水平梁２２及び延長梁３が四角枠状に配置されていることを特徴とする。
【００１５】
請求項２記載の発明によれば、ベント梁１，２を二重（もしくは三重以上）に配置するとともに、外側の第二のベント梁２の端部を延長する延長梁３を用いて二つの四角枠状の構造が形成されるようにしている。これにより、ベント梁１，２を二重にしたことと合わせて強度の向上を図ることができるとともに、第二のベント梁２の水平部２２の先端側の端部が延長梁３に延長されて隅棟１０まで至っていることにより、屋根パネルを小屋組上に配置しやすいなどの施工性の向上を図ることができる。
【００１６】
たとえば、前記小屋組構造により支持される屋根パネルを設置する際に、前記第一のベント梁１の水平部１２と前記第二のベント梁２の水平部２２もしくは延長梁３とに上下端部を支持される屋根パネルと、第二のベント梁２の水平部２２もしくは延長梁３と外壁５０とに、上下端部を支持される屋根パネルとを配置することにより、該屋根パネルのスパンが短くなるという効果を有し、雪の重みにより屋根に加わる大きな荷重に十分耐えうる程度の構造強度を持つ小屋組構造を構築できる。
【００１７】
また、前記第一のベント梁１の水平部１２と外壁５０によって屋根パネルの上下を支持する屋根パネルの配置方法を採用する場合においては、前記第二のベント梁２の水平部２２により第一のベント梁１の水平部１２と外壁５０との間が、ほぼ等間隔に仕切られることで、前記第二のベント梁２が、屋根パネル支持用部材として働き、該屋根パネルのスパンが短くなるのとほぼ同様の効果を有することになる。この効果により、雪の重みにより屋根に加わる大きな荷重に十分耐えうる程度の構造強度を持つ小屋組構造を構築できる。
なお、第一のベント梁１の水平部１２より上の部分においては、たとえば、屋根パネルをテント状に組むことにより、屋根パネルの下部が第一のベント梁の水平部に支持され、屋根パネルの上端部が互いに支持しあった状態となる。
また、屋根パネルを用いずに垂木と面材とにより屋根を構成する場合にも、垂木が第一のベント梁１の水平部１２と第二のベント梁２の水平部２２に支持されることになり、強度が向上する。
【００１８】
請求項３記載の発明は、請求項１または２記載の小屋組構造において、前記各屋根面７の屋根の外壁５０に対応する位置が外壁５０に接合されて支持されるとともに、外壁５０と第一のベント梁１の水平部１２との間が、第二のベント梁２の水平部２２によりほぼ等間隔に仕切られていることを特徴する。
【００１９】
請求項３記載の発明によれば、外壁５０と第一のベント梁１の水平部１２との間が、第二のベント梁２の水平部２２によりほぼ等間隔に仕切られているので、上述のように屋根パネルを配置する際に、第一のベント梁１と第二のベント梁２とに上下両端部を支持される屋根パネルのスパンと、第二のベント梁２と外壁５０とに上下両端部を支持される屋根パネルのスパンとをほぼ等しくして、屋根面７においてほぼ均等に強度を高めることができる。なお、第二のベント梁２と外壁５０とに上下両端部を支持される屋根パネルには、通常、外壁５０より外側に出る軒の出があるので、第一のベント梁１と第二のベント梁２とに上下両端部を支持される屋根パネルより長くなるが、これら屋根パネルを支持する支持体（第一及び第二のベント梁と外壁）間の距離はほぼ等しくなる。なお、第二のベント梁２が二本以上の場合も各ベント梁１，２及び外壁５０とにより各屋根パネルのスパンがほぼ均等になる。
【００２０】
また、第一のベント梁１と外壁５０との間に掛け渡すように屋根パネルを配置した際も、第一のベント梁１と外壁５０との間を均等に仕切るように第二のベント梁２を配置することで、屋根パネルの第一のベント梁１と外壁５０との間を均等に支持できる。
【００２１】
請求項４記載の発明は、請求項１〜３のいずれか一つに記載の小屋組構造において、前記ベント梁１，２が鋼製とされるとともに、該ベント梁１，２に梁の長さ方向に沿って等間隔に他の梁を接合するためにそれぞれ４つの孔１ｄ、２ｄを備えた接合部１ｅ、２ｅが設けられていることを特徴とする。
【００２２】
請求項４記載の発明によれば、該ベント梁１，２に梁の長さ方向に沿って等間隔に他の梁を接合するための孔１ｄ、２ｄを備えた接合部１ｅ、２ｅが設けられていることにより、この孔１ｄ、２ｄに取り付けられた接合部材を介してのベント梁１，２同士の接合や、他の梁の接合が可能となるので、ベント梁１，２同士の接合位置を容易にかつ自在に変更でき、方形屋根、寄せ棟屋根やこれらの屋根を基本構造とするその他各種の変形屋根に対応した小屋組構造を容易に構築できる。
【００２３】
請求項５記載の発明は、請求項１〜４のいずれか一つに記載の小屋組構造において、前記ベント梁１，２の水平部の上に、上面が屋根面の傾斜に対応した傾斜面とされた結合桁１ｂ、２ｂが設けられ、互いに接合されるベント梁１，２のうちの一方のベント梁１の登り部に他方のベント梁２の水平部を接合する際に接合部材（たとえば、梁受け金物２１）が用いられ、該接合部材（２１）が、一方のベント梁１の登り部１３に接合される第一の接合部５１と、該第一の接合部５１と一体に設けられるとともに、他方のベント梁２の水平部２２側端部に取り付けられる第二の接合部５２とを備えるとともに、第二の接合部５２に取り付けられた他方のベント梁２の上面が一方のベント梁１の第一の接合部５１が取り付けられる部分の上面より前記結合桁分だけ低くなるように一方のベント梁１の登り部１３に他方のベント梁２の水平部２２を接合するようになっていることを特徴とする。
【００２４】
請求項５記載の発明によれば、前記第二の接合部５２に取り付けられた他方のベント梁２の上面が一方のベント梁１の前記第一の接合部５１が取り付けられる部分の上面より前記結合桁２ｂ分だけ低くなるように一方のベント梁１の登り部１３に他方のベント梁２の水平部２２を接合するようになっていることにより、前記結合桁２ｂを前記水平部２２の上面に設置した際に、前記登り部１３と前記結合桁２ｂの傾斜面が面一となり、支持する屋根の勾配に対応した屋根載置面を備える小屋組構造を構築できる。
【００２５】
【発明の実施の形態】
以下、図を参照して本発明に係るベント梁を使用した小屋組構造の実施の形態例を詳細に説明する。
図１は方形屋根の下面を支持する屋根支持用梁としてベント梁を使用した際の方形屋根の小屋組構造を伏せ図として示すものであり、図２はこの例の小屋組構造に用いられる２種類のベント梁を示し、図３はベント梁同士の接合部の補強用金物を示し、図４はベント梁の登り部と他のベント梁の水平部とを接合する際に用いられる梁受け金物（接合部材）を示し、図５及び図６は前記針受け金物を用いて二つのベント梁を接合した状態を示す。
【００２６】
なお、この例においては、パネル工法により構築される方行屋根または寄棟屋根を屋根の基本構造とする住宅に本発明を応用しているが、本発明は、これに限定されるものではない。
そして、この小屋組構造は、ベント梁１，２と水平な延長梁３を用いたものであって、方行屋根５の頂点６から四方に流れる四つの屋根面７を形成する複数の屋根パネル（図示略）を支持するようになっている。また、この例の方行屋根５は、基本構造が方行屋根であるが、一つの屋根面７から上記頂点６より低い位置に棟８を有する切妻屋根部９が延出した構造となっている。また、方行屋根５においては、各屋根面７どうしの境が隅棟１０となっている。
【００２７】
そして、この例のベント梁１，２を用いた方形屋根５を支持する小屋組構造は、同じ隅棟１０を通るベント梁１，２が二本一組として各隅棟１０毎に一組ずつ配置されるとともに、前記ベント梁１、２の水平部１２、２２側の端部が該水平部１２、２２が配置された屋根面７に登り部１３、２３が配置された他のベント梁１，２のうちの一本（ベント梁１）に（梁受け金物２０、２１を介して）直角に接合されることにより構成されている。なお、同じ隅棟１０を通るベント梁１，２を三本以上としても良い。
【００２８】
前記方形屋根５の支持用梁として使用されるベント梁１，２には二種類存在し、ひとつは該方形屋根５の中央部近傍に該ベント梁１の水平部１２が四角枠状に接合される第一のベント梁１であり、もうひとつは四角枠状に接合された第一のベント梁１の水平部１２より低い位置で、かつ、外側に水平部２２が配置され、該第一のベント梁１と同様に水平部２２が四角枠状に接合される第二のベント梁２である。
【００２９】
前記第一のベント梁１は、図２（ａ）に示すようにＨ型鋼なる梁本体１ａと梁本体１ａの水平部１２の上側のフランジ１ｆ上面に取り付けられた結合桁１ｂとから形成されている。また、梁本体１ａとなるＨ型鋼のウェブ１ｃ（水平部１２と登り部１３のぞれぞれのウェブ）には、予め決められた長さ方向に沿った間隔で４つの孔１ｄからなる接合部１ｅが多数設けられている。この接合部１ｅは、接合部材を介して他の梁の端部をつき合わせた状態で接合できるようになっている。また、接合部１ｅどうしの間隔が、設計時に梁の配置を決める際に用いられる基準寸法の整数分の一もしくはその整数倍となるように決められており、上記基準寸法に基づいて配置された梁を接合部材を介して接合できるようになっている。なお、梁本体１ａの登り部１３に設けられる接合部１ｅどうしの間隔と、水平部１２に設けられる接合部１ｅどうしの間隔とは、たとえば、平面視して同じになるようしても良い。
【００３０】
前記第一のベント梁１は、方形屋根５の裏面側において、一つの屋根面７の下端部側から該屋根面７の傾斜方向に沿って斜め上方に該屋根面７の左右の隅棟１０のうちの一方の隅棟１０にまで至る登り部１３と、該登り部１３の前記隅棟１０側の端部から前記屋根面７に隣接する屋根面７の傾斜方向と直交するように水平に延出する水平部１２とを備えたものである。なお、屋根面７の傾斜方向とは、屋根面７の下端縁に直交し、かつ、屋根面７の傾斜角と同じ傾斜角を有する方向である。
また、第一のベント梁１は、該登り部１３と水平部１２とを平面視した場合に一直線になるようにその一端部において相互に、例えば溶接等の手段により突き合わせ接合することにより構成されている（梁本体１ａとなる登り部１３のＨ型鋼と水平部１２のＨ型鋼とが溶接されている）。また、第一のベント梁１の水平部１２は、屋根面７の一方の隅棟１０側の側縁部から他方の隅棟１０側の側縁部に至るように配置されている。また、第一のベント梁１の登り部１３は、前記水平部１２の隅棟１０に配置される一方の端部から外壁５０の上端部まで屋根面７の傾斜方向にそって延出するように配置されている。
【００３１】
前記第一のベント梁１の端部は、該第一のベント梁１を構成している登り部１３の端部に取り付けられた梁受け金物２４を介して上端部に補強用の合板が取り付けられた外壁５０の上端部に取り付けられており、他方の端部となる前記水平部１２側の端部は該第一のベント梁１と直交する方向に配置されている他の第一のベント梁１の水平部１２の登り部１３側の端部に、接合部材としての梁受け金物２０を介し、該第一のベント梁１の水平部１２が接合されている。
【００３２】
そして、上述のように各隅棟１０をそれぞれ通る４本の第一のベント梁１を互いに接合することにより、４本の第一のベント梁１の４本の水平部１２が四角枠状に配置されるとともに、４本の水平部１２からなる四角い枠の４つの角部から四つの各屋根面７の勾配方向にそってそれぞれ登り部１３が外壁の上端部まで延出した状態となっている。ここでは、このような形状を略卍状と称する。
【００３３】
前記第二のベント梁２は図２（ｂ）に示すようにＨ型鋼からなる梁本体２ａと梁本体２ａの水平部２２のフランジ２ｆの上面に取り付けられた結合桁２ｂとから形成されている。
【００３４】
そして、第二のベント梁２は、前記第一のベント梁１と同様に、屋根面７の下端部側から該屋根面７の傾斜方向に沿って斜め上方に該屋根面７の左右の隅棟１０のうちの一方の隅棟１０にまで至る登り部２３と、該登り部２３の前記隅棟１０側の端部から前記屋根面７に隣接する屋根面７の傾斜方向と直交するように水平に延出する水平部２２とを備えている。
また、第二のベント梁２の登り部２３と水平部２２とを平面視した場合に、第一のベント梁１の場合と同様に、一直線状になるようにその一端部において相互に、例えば溶接等の手段により突き合わせ接合することにより構成されている。
なお、第二のベント梁２は、その水平部２２が屋根面７の第一のベント梁１の水平部１２が配置された位置より下側において、屋根面７の一方の隅棟１０から上記屋根面７に配置された他の第一のベント梁１の登り部１３に至るように配置される。そして、第二のベント梁２の水平部２２は、第一のベント梁１の水平部１２より長くされている。
一方の第二のベント梁２の登り部２３は、第一のベント梁１の水平部１２より屋根面７の下側にある水平部２２から外壁５０の上端部に延出するように配置されているので、第一のベント梁２の登り部１３より短くされている。
【００３５】
また、梁本体２ａとなるＨ型鋼のウェブ２ｃ（水平部２２と登り部２３のぞれぞれのウェブ）には、予め決められた長さ方向に沿った間隔で４つの孔２ｄからなる接合部２ｅが多数設けられている。この接合部２ｅには、接合部材を介して他の梁の端部をつき合わせた状態で接合できるようになっている。また、接合部２ｅどうしの間隔が、設計時に梁の配置を決める際に用いられる基準寸法の整数分の一もしくはその整数倍となるように決められており、上記基準寸法に基づいて配置された梁を接合できるようになっている。なお、梁本体２ａの登り部２３に設けられる接合部２ｅどうしの間隔と、水平部２２に設けられる接合部２ｅどうしの間隔とは、たとえば、平面視して同じになるようしても良い。
【００３６】
また、前記第二のベント梁２は、その端部を前記第一のベント梁１と同様に該第二のベント梁２を構成している登り部２３の端部に取り付けられた梁受け金物２４を介して上端部に補強用の合板が取り付けられた前記外壁５０の上端部に取り付けられている。そして、他方の端部となる前記水平部２２の端部は該第二のベント梁２と直交する方向に延在している前記第一のベント梁１の登り部１３に該第二のベント梁２の水平部２２の上側のフランジ２ｆ上面が該第一のベント梁の登り部１３の上側のフランジ１ｆ上面より低くなるように梁受け金物２１を介して接合されている。該第一のベント梁１の登り部１３のウェブ１ｃの梁受け金物２１が取り付けられた側の反対側の面には、図３に示すような補強用金物２６が取り付けられている。
【００３７】
また、第二のベント梁２の水平部１２側の端部が接合された第一のベント梁１の登り部１３には、第二のベント梁２の水平部１２が取り付けられた側の反対側の側部に、第二のベント梁２の水平部２２を延長するようにして延長梁３が配置されて隅棟１０にまで至り、該第二のベント梁２及び該延長梁３に直交する方向に延在している他の第二のベント梁２の水平部２２に図示しない取り付け部材を介して接合されている。
なお、延長梁３は、第二のベント梁２の水平部１２側の端部に第一のベント梁１の登り部１３を介して接合された状態となっており、第二のベント梁２の端部の近傍から第二のベント梁２の水平部２２を延長するように配置されている。
【００３８】
そして、上述のように各第二のベント梁２と延長梁３が配置されることにより、第二のベント梁２の水平部２２と延長梁３とを合わせたものを一辺とする四角枠状の梁が形成されることになる。すなわち、４本の水平部２２及び延長梁３が四角枠状となるように互いに接合されている。従って、この例の小屋組構造においては、屋根の上部の屋根面の裏側において、屋根の上方の裏面側の部分に、４本の第一のベント梁１の水平部１２からなる四角い枠が形成されるとともに、屋根の下方の裏面側の部分に４本の第二のベント梁２の水平部２２と延長梁３とから四角い枠が形成されることで、二重の枠が形成されるようになっている。また、平面視して、第一のベント梁１の水平部１２からなる四角い枠と外壁５０との距離が、第二のベント梁２の水平部２２及び延長梁３からなる四角い枠と外壁５０との距離の二倍となるようになっている。すなわち、第一のベント梁１の水平部１２と外壁５０との間を等間隔に仕切るように第二のベント梁２の水平部２２が配置されている。
【００３９】
上記第一のベント梁１及び第二のベント梁２の水平部１２，２２を構成するＨ型鋼の上側のフランジ１ｆ，２ｆ上面には前記結合桁１ｂ、２ｂが配置されている。該結合桁１ｂ、２ｂはそれぞれ支持する屋根の勾配に対応した傾斜を各ベント梁１及び２の水平部１２，２２のフランジ上面に形成するための部材であり、該ベント梁１、２が支持する屋根の勾配に合わせた傾斜面を有する。なお、結合桁１ｂ、２ｂは、第一及び第二のベント梁１、２の水平部１２，２２を構成するＨ型鋼の上側のフランジ１ｆ、２ｆに接合される接合部と、その上に配置され上面が上述の傾斜面となった桁部とからなっている。
【００４０】
図４（ａ），（ｂ），（ｃ）に示すように、第一のベント梁１の登り部１３の側部と、第二のベント梁２の水平部２２側の端部とを接合するための前記梁受け金物２１は、前記第一のベント梁１の登り部１３に取り付けられる第一の接合部５１と該第一のベント梁１と直交する方向に配置される前記第二のベント梁２の水平部２２に取り付けられる第二の接合部５２からなる。
前記第一の接合部５１は、第一のベント梁１の登り部１３が支持している屋根面の勾配に沿って設けられる４つのボルト孔５１ａを有するとともに、上側縁が屋根面の勾配に沿って形成された矩形状の第一接合板５１ｂと、第一接合板５１ｂの上側縁部から直角に延出し、前記屋根面７の勾配に対応して傾斜した上傾斜板５１ｃと、第一接合板５１ｂの下側縁部から直角かつ上傾斜板５１ｃと並行に延出する下補強板５１ｄとからなっており、これら第一接合板５１ｂ、上傾斜板５１ｃ、下補強板５１ｄが一体の形成された形状を有する。
なお、第一接合板５１ｂに設けられる4つのボルト孔５１ａに、予めナット５１ｇを溶着しておいてもよく、図４（ａ），（ｂ），（ｃ）は、4つのボルト孔５１ｂのうちの一つにナット５１ｇが接合された状態を示している。
【００４１】
そして、第一の接合部５１は、第一のベント梁１の登り部１３に設けられた４つの孔１ｄを備えた接合部１ｅに締結されるようになっている。すなわち、斜めに配置された登り部１３の４つの孔１ｄと、第一の接合部５１の第一接合板５１ｂに前記４つの孔１ｄに対応して４つのボルト孔５１ａとを合わせ、これら孔１ｄ、５１ａにボルト５１ｆを挿通して締結されている。
なお、第一の接合部５１と第一のベント梁１の上り部１３との接合方法としては、上述のボルトを介しての接合方法に限られず、プレートを用いた溶着方法等を使用してもよい。
また、このように第一の接合部５１の第一接合板５１ｂを締結した際に、第一接合板５１ｂの上側縁部から屋根面７の傾斜に沿って斜めに配置された上傾斜板５１ｃの上面が第一のベント梁１の上側のフランジ１ｆの下面に当接するようになっている。そして、第一接合板５１ｂの下側縁部から屋根面７の傾斜に沿って斜めに配置された下補強板５１ｄの下面が第一のベント梁１の下側のフランジ１ｆの上面に当接するようになっている。すなわち、第一のベント梁１のウェブ１ｃに接合される第一接合板５１ｂをその上下から直角に延出する上傾斜板５１ｃ、下補強板５１ｄが補強した状態となっているとともに、上傾斜板５１ｃが上述のように第一のベント梁１の登り部１３の上側のフランジ１ｆの下面に当接し、下補強板５１ｄが第一のベント梁１の登り部１３の下側のフランジ１ｆの上面に当接することで、接合時に孔１ｄ、５１ａどうしの位置を容易に合わせることができる。
【００４２】
前記第二の接合部５２は、上記第一接合板５１ｂのウェブ１ｃと反対側の面からウェブ１ｃに対して直角に延出する第二接合板５２ａと、第二接合板５２ａの第二のベント梁２に接合される側の先部の上側縁部から水平に突出する位置決め板５２ｂと、第二接合板５２ａの先端部の先端から直角に突出する補強板５２ｃとを有するものである。
前記第二接合板５２ａは、その後部が前記第一の接合部５１の第一接合板５１ｂに接合されるとともに、上傾斜板５１ｃと下補強板５１ｄとに渡る上下幅を有し、上下側縁部が、上傾斜板５１ｃと下補強板５１ｄとに接合されている。
【００４３】
また、第二接合板５２ａの先部は後部より上下幅が狭いものとされるとともに、先部の上側縁が後部の上側縁より、上述の結合桁２ｂの上下厚に対応する長さだけ低いものとなっている。これにより、第二のベント梁２の水平部２２上に設けられた結合桁２ｂの上側の傾斜面と第一のベント梁１の登り部１３の傾斜した上面とがほぼ同一の傾斜した平面内に配置されるようになっている。
【００４４】
また、第二接合板５２ａの先部には、複数のボルト孔５２ｄ、５２ｄが配置されており、第二のベント梁２の水平部２２の先端部のＨ型鋼のウェブ２ｃに設けられた複数のボルト孔と、第二接合板５２ａのボルト孔５２ｄとを合わせてボルト５２ｆを挿通することにより、第二の接合部５２の第二接合板５２ａを第二のベント梁２の端部に固定できるようになっている。
また、第二接合板５２ａを第二のベント梁２の端部となるＨ型鋼のウェブ２ｃに固定した際に、第二接合板５２ａの上部に設けられた位置決め板５２ｂが第二のベント梁２の端部においてＨ型鋼の上側のフランジ２ｆに当接するようになっている。従って、第二の接合板５２を第二のベント梁２の端部に固定する際に、位置決め板５２ｂを第二のベント梁２の端部のＨ型鋼の上側のフランジ２ｆに当接するようにすれば容易に位置決めすることができる。
【００４５】
また、梁受け金物２１を用いた第一のベント梁１の登り部１３の側面と第二のベント梁２の水平部２２側端部との接合においては、梁受け金物２１が取り付けられた第一のベント梁１の登り部１３となるＨ型鋼のウェブ１ｃの梁受け金物２１の反対側の面に補強用金物２６が取り付けられてる。
該補強用金物２６は、図３等に示すように、登り部１３のＨ型鋼のウェブ１ｃに取り付けられる接合板２６ａと、該接合板２６ａの上下側縁部から前側に延出する２つの補強板２６ｂと、前記接合板２６ａに対して直角に配置されるとともに、上下の補強板２６ｂ間に渡って配置される補強板２６ｃとを備えたものである。
【００４６】
そして、前記接合板２６ａには、前記第一接合板５１ｂの４つのボルト孔５１ａに対応して４つのボルト孔２６ｄが設けられ、第一接合板５１ｂを上述のように第一のベント梁１のＨ型鋼のウェブに締結する際に、上記ボルトによりウェブ１ｃの裏側の面に第一接合板５１ｂと一緒に第一のベント梁１に締結されるようになっている。また、この際に、上下２つの補強板２６ｂは、それぞれ第一のベント梁１の上下のフランジ１ｆ、１ｆの内面に当接するようになっている。
なお、接合板２６の第一のベント梁１への接合方法としては、上述のボルトを介しての接合方法に限られず、プレートを用いた溶着方法等を使用してもよい。
また、上記補強板２６ｃは、その後ろ側の側縁が接合板２６ａに接合され、上下の側縁がそれぞれ上下２つの補強板２６ｂに接合されている。
この補強用金物２６により、第一のベント梁１の登り部１３と第二のベント梁２の水平部２２の端部との梁受け金物２１を介した接合部分が補強されるようになっている。
【００４７】
上述のような小屋組構造によれば、各隅棟１０毎に二本のベント梁１，２を配置するようにして、二重の略卍状の小屋組構造とすることにより、容易な施工作業で広い小屋裏空間を得ることができ、かつ、雪の重みに十分耐えうる程度の構造強度を有する小屋組構造を提供することが可能となる。
特に、第二のベント梁２の水平部２２の先端に、第一のベント梁１の登り部１３を介して第二のベント梁２の水平部２２を延長するように延長梁３を接合し、第一のベント梁２の水平部１２からなる四角枠状の梁の外側に第二のベント梁２の水平部２２と延長梁３とからなる四角枠状の梁を設けることにより、積雪量の多い地域においても十分に使用可能な屋根構造とすることができる。さらに、第二のベント梁２の水平部２２の位置を平面視して、第一のベント梁１の水平部１２と外壁５０との間の中央とすることにより、第一のベント梁の水平部１２と第二のベント梁の水平部２２とに上下端部を支持される屋根パネルと、第二のベント梁２の水平部２２と外壁５０とに、上下端部を支持される屋根パネルとを配置する場合、該屋根パネルのスパンが二分割されるように短くなるため、屋根面においてほぼ均等に強度を高めることが可能となる。
【００４８】
また、前記第一のベント梁１の水平部１２と外壁５０によって屋根パネルの上下を支持する屋根パネルの配置方法を採用する場合においては、前記第二のベント梁２の水平部２２により第一のベント梁１の水平部１２と外壁５０との間が、ほぼ等間隔に仕切られることにより、前記第二のベント梁２が、屋根パネルの中央部を支持する部材として働き、該屋根パネルのスパンが短くなるのとほぼ同様の効果を有することになるため、屋根面においてほぼ均等に強度を高めることが可能となる。
なお、第二のベント梁２を二本以上としても良く、この際にも、第一のベント梁１の水平部１２と外壁５０との間を等間隔で仕切るように複数の第二のベント梁２を配置することが好ましく、これにより、さらに強度を均等に高めることができる。
【００４９】
なお、本発明は上記実施の形態例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、ベント梁は、Ｈ型鋼のみならず、Ｉ型、コ字状型、または、管状の鋼材でも良く、さらに、その他の材料、たとえば木材でもよい。また、屋根の形状は、方形屋根に限らず、寄棟屋根、入母屋屋根、その他、基本構造を寄棟屋根（方行屋根を含む）とする各種の変形屋根に適用できる。
【００５０】
たとえば、図７に示すように、本発明の小屋組構造は、方行屋根だけではなく、棟４４を有する通常の寄棟屋根にも適用可能である。なお、小屋組の基本構造は、上記例の方行屋根の場合とほぼ同様であり、ほぼ同様の構成要素には、同一の符号を付してその説明を省略する。また、従来で示した寄棟屋根と同様の構成には、同一の符号を付して説明を省略する。
そして、寄棟屋根４０に対応した小屋組構造と上記例との違いは、寄棟屋根４０の第一及び第二のベント梁１，２のうちの棟４４の方向に沿った水平部１２，２２の長さが、棟４４と直交する方向に沿った水平部１２，２２の長さより棟４４の長さ分だけ長くなっていることである。
【００５１】
【発明の効果】
請求項１記載の発明によれば、容易な施工作業で広い小屋裏空間を得ることができ、かつ、雪の重みにより屋根に加わる大きな荷重に十分耐えうる程度の構造強度を有する小屋組構造を構築できる。また、内壁の位置に関係なく、ほぼ同じ形状の屋根において、小屋組構造の共通化が可能で、かつ、小屋組を構成する各梁をできるだけ共通化させることができることにより、コストの低減を図ることができる。
【００５２】
請求項２記載の発明によれば、強度の向上を図ることができるとともに、第二のベント梁の水平部の先端側の端部が延長梁に延長されて隅棟まで至っていることにより、屋根パネルを小屋組上に配置しやすいなどの施工性の向上を図ることができる。
【００５３】
請求項３記載の発明によれば、屋根パネルを配置する際に、第一のベント梁と第二のベント梁とに上下両端部を支持される屋根パネルのスパンと、第二のベント梁と外壁とに上下両端部を支持される屋根パネルとのスパンとをほぼ等しくして、屋根面においてほぼ均等に強度を高めることができる。
【００５４】
請求項４記載の発明によれば、該ベント梁に梁の長さ方向に沿って等間隔に他の梁を接合するための孔を備えた接合部が設けられていることにより、この孔に取り付けられた接合部材を介してのベント梁同士の接合や、他の梁との接合において、接合位置を容易にかつ自在に変更でき、方形屋根、寄せ棟屋根やその他各種の変形屋根に対応した小屋組構造を容易に構築することが可能となる。
【００５５】
請求項５記載の発明によれば、前記第二の接合部に取り付けられた他方のベント梁の上面が一方のベント梁の前記第一の接合部が取り付けられる部分の上面より前記結合桁分だけ低くなるように一方のベント梁の登り部に他方のベント梁の水平部を接合するようになっていることにより、結合桁を前記水平部の上面に設置した際に、前記登り部と前記結合桁の傾斜面が面一となり、支持する屋根の勾配に対応した屋根載置面を備える小屋組構造を構築することが可能となる。
【図面の簡単な説明】
【図１】本発明の実施の形態例の小屋組構造を示す平面図である。
【図２】上記例の小屋組構造で用いられるベント梁を示す側面図である。
【図３】上記例の小屋組構造で用いられる補強金物を説明するための図面である。
【図４】上記例の小屋組構造で用いられる梁受け金物を説明するための図面である。
【図５】上記例の小屋組構造におけるベント梁同士の接合部を示す要部側面図である
【図６】上記例の小屋組構造におけるベント梁同士の接合部を示す要部側面図である
【図７】他の実施の形態例の小屋組構造を示す平面図である。
【符号の説明】
１第一のベント梁
１ｂ結合桁
１ｄ孔
１ｅ接合部
２第二のベント梁
２ｂ結合桁
２ｄ孔
２ｅ接合部
３延長梁
５方行屋根
６頂点
７屋根面
１０隅棟
１２水平部（第一のベント梁）
１３登り部（第一のベント梁）
２１梁受け金物
２２水平部（第二のベント梁）
２３登り部（第二のベント梁）
４０寄棟屋根
４１屋根面
４２屋根面
４３隅棟
４４棟
５０外壁
５１第一の接合部
５２第二の接合部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shed structure that is used for a dormitory roof (including a direction roof), and that is particularly suitable for a region having a large amount of snow.
[0002]
[Background technology]
In general, a panel construction method is known in which a house is constructed by installing panels manufactured in advance in a factory or the like with respect to floors, walls, roofs, and the like at a construction site.
In the house of the above panel method, since the panels constituting the floor, wall, roof, etc. are joined together to form the house, basically, the pillars and beams are hardly used. Since it is difficult to support all the roof panels that constitute the roof with only the panels, beams that support the roof are used.
[0003]
As a roof support beam for supporting the lower surface of a dormitory roof (including a square roof) provided in a panel construction house, for example, a so-called vent as disclosed in JP-A-8-74370 is disclosed. Beams are used.
[0004]
In the roof structure using the bent beam, at least a part of the inner wall of the house is provided so as to reach the back side of the roof, and the upper end of the inner wall is joined to the roof. Also, the end of the climbing part of the bent beam is joined to the upper end of the outer wall, and the end of the horizontal part is joined to the upper end of the inner wall, thereby supporting a plurality of bent beams and supporting the entire roof. A cabin structure is formed.
Therefore, since there are no beams or bundles supporting the vent beam below the vent beam arranged along the back side of the roof, the shed space on the back side of the roof can be made relatively wide, It is possible to use the shed space effectively by increasing the height or providing a room for storing a large shed in the attic.
[0005]
[Problems to be solved by the invention]
By the way, the roof structure as described above has an inner wall provided so as to reach the roof to support the roof and the bent beam. The use of attic spaces is restricted, such as the inability to build attic spaces.
[0006]
In addition, as described above, in the hut back structure using the inner wall, the position of the inner wall differs depending on the floor plan below the roof having the same shape, and it is necessary to change the hut structure according to the position of the inner wall. That is, even if the roof has a similar shape, the same roof structure cannot be made, and the structure of the roof is determined by the position of the inner wall. It was difficult.
[0007]
On the other hand, in areas where there is a lot of snow, it is necessary to increase the strength of the roof in order to support a large load applied to the roof due to the weight of snow. When applying to areas with a lot of snow, it is necessary to increase the strength.
[0008]
For these reasons, there is a demand for a roof structure that can be used as a single attic space in the entire attic and can be applied to areas with a large amount of snow.
[0009]
The present invention has been made in view of the above circumstances, and can provide a shed structure having a structural strength sufficient to withstand the weight of snow and capable of obtaining a wide shed space with easy construction work. The purpose is to provide.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is, for example, as shown in FIG. The roof structure has two roof surfaces 7 and supports the roof in which the boundary between the roof surfaces 7 excluding the ridge becomes the corner ridge 10, and on the back side of the roof, of the four roof surfaces 7 Ascending portions 13 and 23 extending from the lower end side of one roof surface 7 to one corner building 10 of the left and right corner buildings 10 of the roof surface 7 obliquely upward along the inclination direction of the roof surface 7; Bent beam comprising horizontal portions 12 and 22 extending horizontally from the end of the corner building 10 portion of the climbing portions 13 and 23 so as to be orthogonal to the inclination direction of the roof surface 7 adjacent to the roof surface 7. 1 and 2 and the bent beams 1 and 2 passing through the same corner building 10 as a set of two or more bent beams 1 and 2. And other vents in which the end portions on the side of the horizontal portions 12 and 22 of the bent beams 1 and 2 are arranged on the roof surface 7 on which the horizontal portions 12 and 22 are arranged. It is characterized by being joined to one of the beams 1 at a right angle.
[0011]
According to the first aspect of the present invention, the bent beams 1 and 2 passing through the same corner ridge 10 in the shed structure are arranged at least in pairs for each corner ridge 10 and the bent beams. The end portions of the horizontal portions 12 and 22 on the side of 1 and 2 are joined at right angles to one of the other bent beams 1 on which the climbing portion 13 is disposed on the roof surface 7 on which the horizontal portions 12 and 22 are disposed. Therefore, a large roof space can be obtained by an easy construction work, and a roof structure having a structural strength enough to withstand a large load applied to the roof due to the weight of snow can be constructed.
[0012]
That is, in the present invention, since the horizontal portions 12 and 22 of the two or more vent beams 1 and 2 are arranged on each roof surface 7, each roof surface 7 basically has two or more vent beams 1 and 2. These are supported by the horizontal portions 12 and 22 and the outer wall 50, and the strength is improved. Further, in the roof structure of the present invention, the horizontal portions 12 and 22 of the respective bent beams 1 and 2 are joined to the other bent beams 1 so that the horizontal portions 12 and 22 of the bent beams 1 and 2 are own. The climbing portions 13 and 23 and the climbing portion 13 of the other bent beam 1 are supported. Therefore, it is not necessary to extend the inner wall upward to reach the back surface of the roof in order to support the roof and beams, and the roof structure can be shared in the roof of almost the same shape, so that a large amount of snow is accumulated. In addition to the strength to withstand, a large attic space can be obtained.
Further, the roof structure can be determined regardless of the position of the inner wall. Further, this makes it possible to reduce the cost by making the roof structure symmetrical and sharing the beams of the roof structure as much as possible.
[0013]
The roof structure of the present invention basically supports the roof panel for the panel method, and no rafters are attached to each vent beam, but rafters are attached to each vent beam 1,2. If it is, it is not only a house that uses a roof panel for the panel method, but also a roof of a frame construction method that is constructed by attaching a face plate that constitutes the roof surface on the rafter without using a roof panel for the panel method. Is also applicable. The frame other than the roof is not limited to a wooden structure, and can be applied to a steel frame or a reinforced concrete structure.
[0014]
The invention according to claim 2 is the hut assembly structure according to claim 1, wherein the horizontal portion 12 of the first vent beam 1 in which the horizontal portion 12 of the bent beams 1, 2 of each set is arranged at the highest position. 12 side end portion is the roof surface 7 on which the horizontal portion 12 is disposed, and the roof on which the horizontal portion 12 of the other first bent beam 1 in which the climbing portion 13 is disposed on the roof surface 7 is disposed. The horizontal portions 12 of the four first bent beams 1 are arranged in a square frame shape by being joined to the other first bent beam 1 at the corner ridge 10 which is the boundary with the surface 7. Of the bent beams 1 and 2, the end of the second bent beam 2 on the horizontal portion 22 side which is disposed at a position where the horizontal portion 22 is lower than the first bent beam 1 is the first vent of the other set. An extension beam that is joined to the climbing portion 13 of the beam 1 and extends from the vicinity of the end portion of the second bent beam 2 on the horizontal portion 22 side. Is arranged, and the tip of the extension beam 3 is arranged horizontally on the roof surface 7 on which the extension beam 3 is arranged and another set of second vent beams 2 on which the climbing portion 23 is arranged on the roof surface 7. The horizontal beams 22 and the extension beams 3 of the four second bent beams 2 are joined to the other second bent beams 2 at the corner ridge 10 which is a boundary with the roof surface 7 on which the portion 22 is arranged. Are arranged in a square frame shape.
[0015]
According to the second aspect of the present invention, the bent beams 1 and 2 are arranged in a double (or triple) or more, and two extension beams 3 are used to extend the end of the second bent beam 2 outside. A square frame-like structure is formed. Thereby, it is possible to improve the strength together with the double bent beams 1 and 2, and the end of the horizontal portion 22 of the second bent beam 2 is extended to the extension beam 3. By reaching the corner building 10, it is possible to improve the workability such as easy arrangement of the roof panel on the hut assembly.
[0016]
For example, when installing a roof panel supported by the roof structure, upper and lower end portions are provided on the horizontal portion 12 of the first bent beam 1 and the horizontal portion 22 or the extended beam 3 of the second bent beam 2. By arranging the roof panel supported by the upper and lower ends of the roof panel supported on the horizontal part 22 or the extension beam 3 of the second bent beam 2 and the outer wall 50, the span of the roof panel is reduced. It is possible to construct a roof structure that has the effect of shortening and has a structural strength that can sufficiently withstand a large load applied to the roof due to the weight of snow.
[0017]
Further, in the case of adopting a roof panel arrangement method in which the upper and lower sides of the roof panel are supported by the horizontal portion 12 and the outer wall 50 of the first bent beam 1, the horizontal portion 22 of the second bent beam 2 is used for the first. The horizontal portion 12 of the bent beam 1 and the outer wall 50 are partitioned at substantially equal intervals, so that the second bent beam 2 functions as a roof panel supporting member, and the span of the roof panel is shortened. It has almost the same effect as. This effect makes it possible to construct a roof structure having a structural strength sufficient to withstand a large load applied to the roof due to the weight of snow.
In addition, in the part above the horizontal part 12 of the 1st bent beam 1, the lower part of a roof panel is supported by the horizontal part of a 1st bent beam, for example by assembling a roof panel in a tent shape, and a roof panel It will be in the state which the upper end part of supported.
In addition, when a roof is constituted by rafters and face materials without using a roof panel, the rafters are supported by the horizontal portion 12 of the first bent beam 1 and the horizontal portion 22 of the second bent beam 2. And the strength is improved.
[0018]
According to a third aspect of the present invention, in the cabin structure according to the first or second aspect, a position corresponding to the outer wall 50 of the roof of each roof surface 7 is joined to and supported by the outer wall 50, and The horizontal portion 12 of the first bent beam 1 is partitioned by the horizontal portion 22 of the second bent beam 2 at substantially equal intervals.
[0019]
According to the third aspect of the present invention, the outer wall 50 and the horizontal portion 12 of the first vent beam 1 are partitioned by the horizontal portion 22 of the second vent beam 2 at substantially equal intervals. When the roof panel is arranged as described above, the first vent beam 1 and the second vent beam 2 are supported by the roof panel span supported by the upper and lower ends, the second vent beam 2 and the outer wall 50. The span of the roof panel supported at the upper and lower ends can be made substantially equal, and the strength can be increased almost evenly on the roof surface 7. Note that the roof panel supported at both the upper and lower ends by the second vent beam 2 and the outer wall 50 usually has an eaves protruding outward from the outer wall 50, so the first vent beam 1 and the second wall Although it becomes longer than the roof panel by which the upper and lower ends are supported by the bent beam 2, the distance between the support bodies (the first and second bent beams and the outer wall) for supporting these roof panels is substantially equal. Even when the number of the second vent beams 2 is two or more, the spans of the roof panels are substantially equalized by the vent beams 1 and 2 and the outer wall 50.
[0020]
In addition, when the roof panel is arranged so as to span between the first bent beam 1 and the outer wall 50, the second bent beam so as to equally partition the first bent beam 1 and the outer wall 50. By arranging 2, the space between the first bent beam 1 and the outer wall 50 of the roof panel can be evenly supported.
[0021]
According to a fourth aspect of the present invention, in the cabin structure according to any one of the first to third aspects, the bent beams 1 and 2 are made of steel, and the bent beams 1 and 2 have a beam length. In order to join other beams at equal intervals along the vertical direction, there are provided joints 1e and 2e each having four holes 1d and 2d.
[0022]
According to the invention of claim 4, the bent beams 1 and 2 are provided with joint portions 1e and 2e having holes 1d and 2d for joining other beams at equal intervals along the length direction of the beam. As a result, the bent beams 1 and 2 can be joined to each other via the joining members attached to the holes 1d and 2d, and other beams can be joined. The position can be easily and freely changed, and a roof structure corresponding to a square roof, a ridge roof, and various other modified roofs based on these roofs can be easily constructed.
[0023]
According to a fifth aspect of the present invention, in the cabin structure according to any one of the first to fourth aspects, the upper surface is an inclined surface corresponding to the inclination of the roof surface on the horizontal portion of the bent beams 1 and 2. When the horizontal portion of the other bent beam 2 is joined to the climbing portion of one of the bent beams 1 and 2 of the bent beams 1 and 2 to be joined to each other, for example, a joining member (for example, , The beam receiving member 21) is used, and the joining member (21) is provided integrally with the first joining portion 51 to be joined to the climbing portion 13 of the one bent beam 1 and the first joining portion 51. And a second joint 52 attached to the end of the other vent beam 2 on the horizontal portion 22 side, and the upper surface of the other vent beam 2 attached to the second joint 52 is one vent. Before the upper surface of the portion to which the first joint 51 of the beam 1 is attached Characterized in that the climbing portion 13 of the coupling digit minute only is as one of the vent beam 1 low so as to join the other of the horizontal portion 22 of the vent beam 2.
[0024]
According to the fifth aspect of the present invention, the upper surface of the other bent beam 2 attached to the second joint portion 52 is more than the upper surface of the portion of the one bent beam 1 to which the first joint portion 51 is attached. By connecting the horizontal portion 22 of the other bent beam 2 to the climbing portion 13 of one bent beam 1 so as to be lowered by the connecting beam 2b, the connecting beam 2b is connected to the upper surface of the horizontal portion 22. When installed on the roof, the slopes of the climbing portion 13 and the connecting beam 2b are flush with each other, and a roof structure having a roof mounting surface corresponding to the slope of the roof to be supported can be constructed.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a roof structure using a bent beam according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a shed structure of a square roof when a bent beam is used as a roof support beam for supporting the lower surface of the square roof, and FIG. 2 is used for the shed structure of this example. 3 shows a type of bent beam, FIG. 3 shows a reinforcing metal for the joint between the bent beams, and FIG. 4 shows a beam receiving metal used when joining the climbing part of the bent beam and the horizontal part of another bent beam. FIG. 5 and FIG. 6 show a state where two bent beams are joined using the needle guard.
[0026]
In addition, in this example, although this invention is applied to the house which uses the direction roof or dormitory roof constructed | assembled by a panel construction method as a basic structure of a roof, this invention is not limited to this. .
And this roof structure uses the bent beams 1 and 2 and the horizontal extension beam 3, Comprising: The several roof panel which forms the four roof surfaces 7 which flow to four directions from the vertex 6 of the direction roof 5 (Not shown) is supported. Moreover, although the basic structure of the direction roof 5 of this example is a direction roof, it becomes the structure where the gable roof part 9 which has the ridge 8 in the position lower than the said vertex 6 extended from one roof surface 7 to the above. Yes. In the direction roof 5, the boundary between the roof surfaces 7 is a corner building 10.
[0027]
And the roof structure which supports the square roof 5 using the vent beams 1 and 2 of this example is a pair of the vent beams 1 and 2 passing through the same corner building 10 as one set for each corner building 10. Other bent beams 1 in which the end portions of the bent beams 1 and 2 on the side of the horizontal portions 12 and 22 are arranged on the roof surface 7 on which the horizontal portions 12 and 22 are disposed. , 2 (by the bent beam 1) (via the beam receivers 20 and 21). Three or more vent beams 1 and 2 passing through the same corner building 10 may be used.
[0028]
There are two types of bent beams 1 and 2 used as support beams for the square roof 5, and one is a horizontal portion 12 of the bent beam 1 joined in the form of a square frame near the center of the square roof 5. The first bent beam 1 is disposed at a position lower than the horizontal portion 12 of the first bent beam 1 joined in a square frame shape, and the horizontal portion 22 is disposed outside. Similar to the bent beam 1, the horizontal portion 22 is a second bent beam 2 joined in a square frame shape.
[0029]
As shown in FIG. 2A, the first bent beam 1 is formed of a beam main body 1a made of H-shaped steel and a connecting beam 1b attached to the upper surface of the upper flange 1f of the horizontal portion 12 of the beam main body 1a. Yes. Further, the H-shaped steel web 1c (the web of each of the horizontal portion 12 and the climbing portion 13) serving as the beam main body 1a is joined by four holes 1d at intervals along a predetermined length direction. Many portions 1e are provided. This joining part 1e can be joined in a state where the ends of other beams are brought together via a joining member. In addition, the interval between the joint portions 1e is determined to be an integer fraction or a multiple of a reference dimension used when determining the arrangement of the beams at the time of design, and the joints 1e are arranged based on the reference dimension. The beam can be joined via a joining member. Note that the interval between the joint portions 1e provided in the climbing portion 13 of the beam body 1a and the interval between the joint portions 1e provided in the horizontal portion 12 may be the same in a plan view, for example.
[0030]
The first bent beam 1 is arranged on the back surface side of the square roof 5 from the lower end side of one roof surface 7 diagonally upward along the inclination direction of the roof surface 7 to the left and right corner ridges 10 of the roof surface 7. Of the climbing portion 13 that reaches one corner ridge 10 of the ridge 10 and the end portion of the climbing portion 13 on the corner ridge 10 side so as to be orthogonal to the inclination direction of the roof surface 7 adjacent to the roof surface 7. And a horizontal portion 12 that extends. The inclination direction of the roof surface 7 is a direction orthogonal to the lower edge of the roof surface 7 and having the same inclination angle as the inclination angle of the roof surface 7.
Further, the first bent beam 1 is constituted by butt-joining each other by means of, for example, welding or the like so as to be in a straight line when the climbing portion 13 and the horizontal portion 12 are viewed in plan. (The H-shaped steel of the climbing portion 13 that becomes the beam body 1a and the H-shaped steel of the horizontal portion 12 are welded). Further, the horizontal portion 12 of the first bent beam 1 is disposed so as to extend from the side edge portion on the one corner building 10 side of the roof surface 7 to the side edge portion on the other corner building 10 side. Further, the climbing portion 13 of the first bent beam 1 extends along the inclination direction of the roof surface 7 from one end portion disposed in the corner ridge 10 of the horizontal portion 12 to the upper end portion of the outer wall 50. Is arranged.
[0031]
A reinforcing plywood is attached to the upper end portion of the end portion of the first bent beam 1 via a beam support 24 attached to the end portion of the climbing portion 13 constituting the first bent beam 1. The other end of the outer wall 50 is attached to the upper end of the outer wall 50, and the other end of the horizontal portion 12, which is the other end, is disposed in a direction perpendicular to the first vent beam 1. The horizontal portion 12 of the first bent beam 1 is joined to the end of the horizontal portion 12 of the beam 1 on the climbing portion 13 side via a beam receiving member 20 as a joining member.
[0032]
Then, as described above, the four first bent beams 1 passing through the corner ridges 10 are joined to each other, so that the four horizontal portions 12 of the four first bent beams 1 are formed in a square frame shape. In addition to being arranged, the climbing portions 13 extend from the four corners of the square frame composed of the four horizontal portions 12 to the upper end portions of the outer walls along the gradient directions of the four roof surfaces 7 respectively. Yes. Here, such a shape is referred to as a substantially bowl shape.
[0033]
As shown in FIG. 2 (b), the second bent beam 2 is formed of a beam body 2a made of H-shaped steel and a connecting beam 2b attached to the upper surface of the flange 2f of the horizontal portion 22 of the beam body 2a. .
[0034]
And the 2nd vent beam 2 is like the said 1st vent beam 1, from the lower end part side of the roof surface 7, diagonally upward along the inclination direction of the roof surface 7, the left and right corners of the roof surface 7 Ascending portion 23 reaching one corner ridge 10 of ridges 10, and from the end of the ridge portion 23 on the corner ridge 10 side so as to be orthogonal to the inclination direction of the roof surface 7 adjacent to the roof surface 7. And a horizontal portion 22 extending horizontally.
In addition, when the climbing portion 23 and the horizontal portion 22 of the second bent beam 2 are viewed in plan, as in the case of the first bent beam 1, the ends of the second bent beam 2 are aligned with each other at one end thereof, for example, It is comprised by butt-joining by means, such as welding.
Note that the second vent beam 2 has a horizontal portion 22 below the position where the horizontal portion 12 of the first vent beam 1 on the roof surface 7 is disposed from one corner building 10 of the roof surface 7. It arrange | positions so that it may reach the climbing part 13 of the other 1st bent beam 1 arrange | positioned on the roof surface 7. FIG. The horizontal portion 22 of the second bent beam 2 is longer than the horizontal portion 12 of the first bent beam 1.
One climbing portion 23 of the second bent beam 2 is arranged so as to extend from the horizontal portion 22 below the roof surface 7 to the upper end portion of the outer wall 50 from the horizontal portion 12 of the first bent beam 1. Therefore, it is shorter than the climbing portion 13 of the first bent beam 2.
[0035]
In addition, the H-shaped steel web 2c (the web of each of the horizontal portion 22 and the climbing portion 23) serving as the beam body 2a is joined by four holes 2d at intervals along a predetermined length direction. Many portions 2e are provided. The joining portion 2e can be joined in a state where the ends of other beams are brought together via a joining member. In addition, the interval between the joint portions 2e is determined to be an integer fraction or a multiple of the reference dimension used when determining the arrangement of the beams at the time of design, and the arrangement is performed based on the reference dimension. Beams can be joined. Note that the interval between the joint portions 2e provided in the climbing portion 23 of the beam body 2a and the interval between the joint portions 2e provided in the horizontal portion 22 may be the same in a plan view, for example.
[0036]
Further, the second bent beam 2 has a beam bracket attached to the end of the climbing portion 23 constituting the second bent beam 2 in the same manner as the first bent beam 1. 24 is attached to the upper end portion of the outer wall 50 to which a reinforcing plywood is attached to the upper end portion. Then, the end of the horizontal portion 22 which is the other end is extended to the climbing portion 13 of the first vent beam 1 extending in a direction orthogonal to the second vent beam 2. The upper surface of the upper flange 2f of the horizontal portion 22 of the beam 2 is joined via the beam receiving member 21 so as to be lower than the upper surface of the upper flange 1f of the climbing portion 13 of the first bent beam. A reinforcing hardware 26 as shown in FIG. 3 is attached to the surface of the climbing portion 13 of the first bent beam 1 opposite to the side of the web 1c to which the beam receiving hardware 21 is attached.
[0037]
Further, the climbing portion 13 of the first bent beam 1 joined to the end portion on the horizontal portion 12 side of the second bent beam 2 is opposite to the side where the horizontal portion 12 of the second bent beam 2 is attached. The extension beam 3 is arranged on the side of the side so as to extend the horizontal portion 22 of the second bent beam 2 to reach the corner ridge 10, and is orthogonal to the second bent beam 2 and the extension beam 3 It joins to the horizontal part 22 of the other 2nd vent beam 2 extended in the direction to do through the attachment member which is not shown in figure.
The extension beam 3 is joined to the end of the second bent beam 2 on the horizontal portion 12 side via the climbing portion 13 of the first bent beam 1, and the second bent beam 2. It arrange | positions so that the horizontal part 22 of the 2nd vent beam 2 may be extended from the vicinity of the edge part.
[0038]
Then, by arranging the second bent beams 2 and the extended beams 3 as described above, a rectangular frame shape having one side that is a combination of the horizontal portion 22 of the second bent beams 2 and the extended beams 3 is formed. Will be formed. That is, the four horizontal portions 22 and the extension beam 3 are joined to each other so as to form a square frame shape. Therefore, in the roof structure of this example, on the back side of the roof surface of the upper part of the roof, a square frame formed of the horizontal portions 12 of the four first bent beams 1 is formed on the back side portion above the roof. In addition, a double frame is formed by forming a square frame from the horizontal portion 22 and the extension beam 3 of the four second bent beams 2 on the back side portion below the roof. It has become. Further, in plan view, the distance between the square frame formed of the horizontal portion 12 of the first bent beam 1 and the outer wall 50 is such that the square frame formed of the horizontal portion 22 of the second bent beam 2 and the extended beam 3 and the outer wall 50 are separated. It is designed to be twice the distance. That is, the horizontal portion 22 of the second bent beam 2 is arranged so as to partition the horizontal portion 12 of the first bent beam 1 and the outer wall 50 at equal intervals.
[0039]
The coupling beams 1b and 2b are disposed on the upper flanges 1f and 2f of the H-shaped steel constituting the horizontal portions 12 and 22 of the first and second bent beams 1 and 2, respectively. The coupling beams 1b and 2b are members for forming slopes corresponding to the slopes of the roofs to be supported on the upper surfaces of the flanges of the horizontal portions 12 and 22 of the bent beams 1 and 2, respectively. It has an inclined surface that matches the slope of the roof. Note that the connecting beams 1b and 2b are disposed on and joined to the flanges 1f and 2f on the upper side of the H-shaped steel constituting the horizontal portions 12 and 22 of the first and second bent beams 1 and 2, respectively. The upper surface is made up of the above-mentioned inclined portion.
[0040]
As shown in FIGS. 4A, 4B, and 4C, the side portion of the climbing portion 13 of the first bent beam 1 and the end portion of the second bent beam 2 on the horizontal portion 22 side are joined. The beam receiver 21 for performing the above operation is arranged in a direction orthogonal to the first joint 51 and the first bent beam 1 attached to the climbing portion 13 of the first bent beam 1. It consists of the 2nd junction part 52 attached to the horizontal part 22 of the bent beam 2. As shown in FIG.
The first joint portion 51 has four bolt holes 51a provided along the slope of the roof surface supported by the climbing portion 13 of the first bent beam 1, and the upper edge thereof has a slope of the roof surface. A rectangular first joining plate 51b formed along the upper edge plate 51c extending at a right angle from the upper edge of the first joining plate 51b and inclined corresponding to the slope of the roof surface 7, The lower reinforcing plate 51d extends from the lower edge of the joining plate 51b at a right angle and in parallel with the upper inclined plate 51c. The first joining plate 51b, the upper inclined plate 51c, and the lower reinforcing plate 51d are integrated. It has a formed shape.
In addition, you may weld the nut 51g previously to the four bolt holes 51a provided in the 1st joining board 51b, and Fig.4 (a), (b), (c) shows four bolt holes 51b. The state which the nut 51g was joined to one of them is shown.
[0041]
And the 1st junction part 51 is fastened by the junction part 1e provided with the four holes 1d provided in the climbing part 13 of the 1st vent beam 1. As shown in FIG. That is, the four holes 1d of the climbing portion 13 arranged obliquely and the four bolt holes 51a corresponding to the four holes 1d are aligned with the first joint plate 51b of the first joint portion 51, and these holes A bolt 51f is inserted into 1d and 51a and fastened.
In addition, as a joining method of the 1st junction part 51 and the uphill part 13 of the 1st bent beam 1, it is not restricted to the joining method through the above-mentioned bolt, It uses the welding method using a plate, etc. Also good.
Further, when the first joint plate 51b of the first joint portion 51 is fastened in this way, the upper slope plate 51c disposed obliquely along the slope of the roof surface 7 from the upper edge portion of the first joint plate 51b. Is in contact with the lower surface of the upper flange 1 f of the first bent beam 1. Then, the lower surface of the lower reinforcing plate 51d disposed obliquely along the inclination of the roof surface 7 from the lower edge of the first joint plate 51b contacts the upper surface of the flange 1f on the lower side of the first bent beam 1. It is like that. That is, the first joint plate 51b joined to the web 1c of the first bent beam 1 is reinforced by the upper inclined plate 51c and the lower reinforcing plate 51d that extend perpendicularly from the upper and lower sides, and the upper inclined plate 51b. As described above, the plate 51c contacts the lower surface of the upper flange 1f of the climbing portion 13 of the first vent beam 1, and the lower reinforcing plate 51d is formed on the lower flange 1f of the climbing portion 13 of the first vent beam 1. By contacting the upper surface, the positions of the holes 1d and 51a can be easily aligned at the time of joining.
[0042]
The second joining portion 52 includes a second joining plate 52a extending perpendicularly to the web 1c from a surface opposite to the web 1c of the first joining plate 51b, and a second joining plate 52a. The positioning plate 52b protrudes horizontally from the upper edge portion of the tip portion on the side to be joined to the bent beam 2, and the reinforcing plate 52c protrudes at right angles from the tip of the tip portion of the second joining plate 52a.
The second joining plate 52a is joined to the first joining plate 51b of the first joining portion 51 at the rear portion thereof, and has a vertical width across the upper inclined plate 51c and the lower reinforcing plate 51d. The edge portion is joined to the upper inclined plate 51c and the lower reinforcing plate 51d.
[0043]
In addition, the front portion of the second joining plate 52a is narrower in the vertical width than the rear portion, and the upper edge of the front portion is lower than the upper edge of the rear portion by a length corresponding to the vertical thickness of the coupling beam 2b described above. It has become a thing. Accordingly, the upper inclined surface of the connecting beam 2b provided on the horizontal portion 22 of the second bent beam 2 and the inclined upper surface of the climbing portion 13 of the first bent beam 1 are in the same inclined plane. It is supposed to be arranged in.
[0044]
A plurality of bolt holes 52d and 52d are arranged at the tip of the second joining plate 52a, and a plurality of bolt holes 52d and 52d are provided on the H-shaped steel web 2c at the tip of the horizontal portion 22 of the second bent beam 2. The second joint plate 52a of the second joint portion 52 is fixed to the end of the second bent beam 2 by inserting the bolt 52f through the bolt hole 52d of the second joint plate 52a and the bolt hole 52d. It can be done.
Further, when the second joining plate 52a is fixed to the H-shaped steel web 2c serving as the end of the second vent beam 2, the positioning plate 52b provided on the upper portion of the second joining plate 52a is used as the second vent beam. 2 is in contact with the upper flange 2f of the H-shaped steel. Therefore, when the second joining plate 52 is fixed to the end of the second vent beam 2, the positioning plate 52b is brought into contact with the upper flange 2f of the H-shaped steel at the end of the second vent beam 2. If it does, it can position easily.
[0045]
Further, in the joining of the side surface of the climbing portion 13 of the first bent beam 1 and the end portion on the horizontal portion 22 side of the second bent beam 2 using the beam receiver 21, the first portion to which the beam receiver 21 is attached is attached. A reinforcing metal piece 26 is attached to the surface of the H-shaped steel web 1c which becomes the climbing portion 13 of the one bent beam 1 on the opposite side of the beam receiving metal piece 21.
As shown in FIG. 3 and the like, the reinforcing hardware 26 includes a joining plate 26a attached to the H-shaped steel web 1c of the climbing portion 13 and two reinforcements extending forward from the upper and lower side edge portions of the joining plate 26a. It is provided with a plate 26b and a reinforcing plate 26c which is arranged at right angles to the joining plate 26a and which is arranged between the upper and lower reinforcing plates 26b.
[0046]
The joining plate 26a is provided with four bolt holes 26d corresponding to the four bolt holes 51a of the first joining plate 51b, and the first joining plate 51b is connected to the first vent beam 1 as described above. When fastening to the H-shaped steel web, the bolt is fastened to the first bent beam 1 together with the first joining plate 51b on the back side surface of the web 1c by the bolt. At this time, the two upper and lower reinforcing plates 26b are in contact with the inner surfaces of the upper and lower flanges 1f and 1f of the first vent beam 1, respectively.
The joining method of the joining plate 26 to the first bent beam 1 is not limited to the joining method using the bolts described above, and a welding method using a plate or the like may be used.
The reinforcing plate 26c has a rear side edge joined to the joining plate 26a, and upper and lower side edges joined to the upper and lower two reinforcing plates 26b.
By this reinforcing hardware 26, the joint portion between the climbing portion 13 of the first bent beam 1 and the end portion of the horizontal portion 22 of the second bent beam 2 via the beam receiving hardware 21 is reinforced. Yes.
[0047]
According to the hut structure as described above, two bent beams 1 and 2 are arranged for each corner ridge 10 to form a double substantially ridge-shaped shed structure, thereby facilitating construction. It is possible to provide a cabin structure having a structural strength that can provide a wide cabin space and can sufficiently withstand the weight of snow.
In particular, the extension beam 3 is joined to the tip of the horizontal portion 22 of the second bent beam 2 so as to extend the horizontal portion 22 of the second bent beam 2 via the climbing portion 13 of the first bent beam 1. By providing a rectangular frame-shaped beam composed of the horizontal portion 22 of the second bent beam 2 and the extension beam 3 outside the rectangular frame-shaped beam composed of the horizontal portion 12 of the first bent beam 2, the amount of snow accumulation The roof structure can be sufficiently used even in an area where there is a large amount. Further, when the position of the horizontal portion 22 of the second bent beam 2 is viewed in plan and is set to the center between the horizontal portion 12 of the first bent beam 1 and the outer wall 50, the horizontal direction of the first bent beam 2 is increased. A roof panel whose upper and lower ends are supported by the portion 12 and the horizontal portion 22 of the second bent beam, and a roof panel whose upper and lower ends are supported by the horizontal portion 22 and the outer wall 50 of the second bent beam 2. Since the span of the roof panel is shortened so as to be divided into two, the strength can be increased almost evenly on the roof surface.
[0048]
Further, in the case of adopting a roof panel arrangement method in which the upper and lower sides of the roof panel are supported by the horizontal portion 12 and the outer wall 50 of the first bent beam 1, the horizontal portion 22 of the second bent beam 2 is used for the first. The horizontal portion 12 of the bent beam 1 and the outer wall 50 are partitioned at substantially equal intervals, so that the second bent beam 2 functions as a member for supporting the center portion of the roof panel, Since the effect is almost the same as the shortening of the span, the strength can be increased substantially evenly on the roof surface.
Two or more second vent beams 2 may be provided. In this case as well, a plurality of second vent beams are provided so as to partition the horizontal portion 12 of the first vent beam 1 and the outer wall 50 at equal intervals. It is preferable to arrange the beams 2, whereby the strength can be further increased evenly.
[0049]
The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, the bent beam may be not only H-shaped steel but also I-shaped, U-shaped, or tubular steel materials, and may be other materials such as wood. Moreover, the shape of the roof is not limited to a square roof, but can be applied to various modified roofs in which the basic structure is a dormitory roof (including a direction roof).
[0050]
For example, as shown in FIG. 7, the roof structure of the present invention is applicable not only to a side roof but also to a normal dormitory roof having a ridge 44. Note that the basic structure of the hut assembly is substantially the same as that of the case of the side roof in the above example, and substantially the same components are denoted by the same reference numerals and description thereof is omitted. Moreover, the same code | symbol is attached | subjected to the structure similar to the dormitory roof shown conventionally, and description is abbreviate | omitted.
The difference between the roof structure corresponding to the dormitory roof 40 and the above example is that the horizontal portion 12 along the direction of the ridge 44 of the first and second bent beams 1 and 2 of the dormitory roof 40, 22 is longer than the length of the horizontal portions 12 and 22 along the direction orthogonal to the ridge 44 by the length of the ridge 44.
[0051]
【The invention's effect】
According to the first aspect of the present invention, there is provided a cabin structure having a structural strength that can provide a large cabin space with an easy construction work and can sufficiently withstand a large load applied to the roof due to the weight of snow. Can be built. In addition, the roof structure can be shared on a roof with almost the same shape regardless of the position of the inner wall, and each beam constituting the roof structure can be shared as much as possible to reduce costs. be able to.
[0052]
According to the invention of claim 2, the strength can be improved and the end of the horizontal portion of the second bent beam is extended to the corner ridge by extending the end of the horizontal portion to the roof. It is possible to improve the workability such as easy placement of the panel on the cabin.
[0053]
According to invention of Claim 3, when arrange | positioning a roof panel, the span of the roof panel by which both upper and lower ends are supported by the 1st vent beam and the 2nd vent beam, and the 2nd vent beam The span between the outer wall and the roof panel supported at the upper and lower ends can be made substantially equal, and the strength can be increased substantially evenly on the roof surface.
[0054]
According to the invention described in claim 4, the bent beam is provided with a joint portion having holes for joining other beams at equal intervals along the length direction of the beam. The joint position can be easily and freely changed between the bent beams and other beams via the attached joint members, and it is compatible with square roofs, close-up roofs, and various other modified roofs. It is possible to easily construct a cabin structure.
[0055]
According to invention of Claim 5, the upper surface of the other vent beam attached to said 2nd junction part is only the part of the said joint beam from the upper surface of the part to which said 1st junction part of one vent beam is attached. By connecting the horizontal part of the other bent beam to the climbing part of one bent beam so as to be lower, when the connecting beam is installed on the upper surface of the horizontal part, the rising part and the connecting part It is possible to construct a roof structure having a roof mounting surface corresponding to the slope of the roof to be supported because the inclined surfaces of the girders are flush with each other.
[Brief description of the drawings]
FIG. 1 is a plan view showing a cabin structure according to an embodiment of the present invention.
FIG. 2 is a side view showing a bent beam used in the roof structure of the above example.
FIG. 3 is a drawing for explaining reinforcing hardware used in the roof structure of the above example.
FIG. 4 is a view for explaining a beam support used in the roof structure of the above example.
FIG. 5 is a side view of an essential part showing a joint portion between bent beams in the roof structure of the above example.
FIG. 6 is a side view of an essential part showing a joint portion between bent beams in the roof structure of the above example.
FIG. 7 is a plan view showing a cabin structure according to another embodiment.
[Explanation of symbols]
1 First bent beam
1b Combined digit
1d hole
1e Joint
2 Second bent beam
2b Combined digit
2d hole
2e joint
3 Extension beam
5 direction roof
6 vertex
7 Roof surface
10 corner building
12 Horizontal part (first bent beam)
13 Climbing section (first bent beam)
21 Beam receiving hardware
22 Horizontal part (second bent beam)
23 Climbing part (second bent beam)
40 dormitory roof
41 Roof surface
42 Roof surface
43 Corner Building
44 buildings
50 outer wall
51 First joint
52 Second joint

Claims

A hut that supports the roof where the basic structure of the roof has four roof surfaces that flow in all directions from the center, such as a dormitory roof and a side roof, and the boundary between each roof surface except the ridge is a corner ridge. A pair structure,
On the back side of the roof, on one corner ridge of the left and right corner ridges of the roof surface obliquely upward along the inclination direction of the roof surface from the lower end side of one of the four roof surfaces A bent beam comprising a climbing part that extends to and a horizontal part that extends horizontally so as to be orthogonal to the inclination direction of the roof surface adjacent to the roof surface from the end of the corner ridge portion of the climbing part,
Two or more bent beams passing through the same corner ridge are arranged in pairs for each corner ridge, and the end on the horizontal portion side of the bent beam is on the roof surface on which the horizontal portion is arranged. A cabin structure characterized in that it is joined at right angles to one of the other bent beams in which the climbing portion is arranged.

In the roof structure according to claim 1,
The end of the first vent beam on the side of the horizontal portion of the bent beam of each set located at the highest position is the roof surface on which the horizontal portion is disposed, and the climbing portion on the roof surface The four first parts are joined to the first bent beam of the other set at the corner ridge that borders the roof surface where the horizontal part of the first bent beam of the other set is arranged. The horizontal part of the bent beam is arranged in a square frame shape,
The end of the second vent beam on the horizontal portion side of the second bent beam, which is disposed at a position where the horizontal portion is lower than the first bent beam of each set, is the climbing portion of the first bent beam of the other set. The extension beam is arranged so as to extend from the vicinity of the end of the second bent beam on the horizontal portion side, and the extension beam is arranged at the tip of the extension beam. The second vent beam of the other set at the corner ridge portion that is the boundary between the roof surface and the roof surface where the horizontal portion of the second vent beam of the other set of the climbed portion is arranged on the roof surface. The horizontal structure of the four second bent beams and the extension beams are arranged in a square frame shape.

In the roof structure according to claim 1 or 2,
The position of each roof surface corresponding to the outer wall of the roof is joined to and supported by the outer wall, and the outer wall and the horizontal portion of the first bent beam are substantially equally spaced by the horizontal portion of the second bent beam. A hut assembly structure characterized by being partitioned into two.

In the hut structure as described in any one of Claims 1-3,
The vent beam is made of steel, and the bent beam is provided with a joint portion having holes for joining other beams at equal intervals along the length direction of the beam. Hut structure.

In the cabin structure as described in any one of Claims 1-4,
On the horizontal part of the bent beam, a connecting girder whose upper surface is an inclined surface corresponding to the inclination of the roof surface is provided,
A joining member is used when joining the horizontal part of the other bent beam to the climbing part of one of the bent beams to be joined together,
The joining member is provided integrally with the first joining portion joined to the climbing portion of one of the bent beams, and is attached to the horizontal portion side end of the other bent beam. And the upper surface of the other bent beam attached to the second joined portion is lower than the upper surface of the portion to which the first joined portion of one bent beam is attached by the amount of the coupling beam. The roof structure is characterized in that the horizontal part of the other bent beam is joined to the climbed part of one bent beam.