JP5174786B2 - Rafter unit for roof construction, roof construction block and roof construction method of building - Google Patents

Rafter unit for roof construction, roof construction block and roof construction method of building Download PDF

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JP5174786B2
JP5174786B2 JP2009263565A JP2009263565A JP5174786B2 JP 5174786 B2 JP5174786 B2 JP 5174786B2 JP 2009263565 A JP2009263565 A JP 2009263565A JP 2009263565 A JP2009263565 A JP 2009263565A JP 5174786 B2 JP5174786 B2 JP 5174786B2
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英一郎 天谷
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本発明は、屋根ユニット材の改良、詳しくは、耐荷重性に優れた屋根構造体を構築することができ、しかも、運搬及び施工作業の容易化、安全性の向上そして工期の短縮も図れる屋根組み用垂木ユニット及びそれを用いた屋根構築方法に関するものである。   INDUSTRIAL APPLICABILITY The present invention is an improvement of a roof unit material, specifically, a roof structure capable of constructing a roof structure excellent in load resistance, and facilitates transportation and construction work, improves safety, and shortens the construction period. The present invention relates to a rafter unit for assembly and a roof construction method using the rafter unit.

近年、木造住宅の構法は、木造軸組構法(在来工法)や木造枠組壁構法(２×４工法)が主流となっているが、これらの構法において小屋組の構築する際には、高度な技巧が要求される継手や仕口などの複雑な加工を予め工場で行い、このプレカットした構造材を現場で組み立てる方法が採用されていた。   In recent years, wooden frame construction methods (conventional construction methods) and wooden frame construction methods (2 × 4 construction methods) have become mainstream in the construction methods of wooden houses. A method was adopted in which complex processing such as joints and joints that require special skills was performed in the factory in advance, and this pre-cut structural material was assembled on site.

ところが、上記プレカットした構造材による工法は、依然として大量の構造材を現場で組み立てる作業が必要であったため、作業者は長時間高所で作業しなければならず、施工作業の効率性や安全性の面において問題があった。   However, the construction method using the pre-cut structural material described above still requires work to assemble a large amount of structural material on site, so the worker must work at a high place for a long time, and the efficiency and safety of construction work. There was a problem in terms of

そこで、従来、小屋束と母屋、垂木の上部、棟木とが一体となった小屋根ユニットを予め工場等で作製し、それをクレーン等で小屋梁上に載置した後、小屋根ユニットの母屋と軒桁に対し、垂木の下部を複数並べて連結した柵状ユニットを固定して効率的に小屋根を構築できるようにした技術（特許文献１参照）が提案された。   Therefore, conventionally, a small roof unit in which a shed bundle and a main building, an upper part of a rafter, and a purlin are integrated in a factory or the like is placed in advance on a shed beam with a crane or the like. The technique (refer patent document 1) which fixed the fence-like unit which arranged the lower part of the rafter side by side and connected it with the eaves girder, and was able to construct | assemble a small roof efficiently was proposed.

しかしながら、上記工法により構築された小屋根は、建築基準法上の要件を満たす耐荷重性を有してはいるものの、積雪量が多い地域などにおいて建築基準法以上の耐荷重性を求める場合に、構造的に耐力が不足しがちであった。   However, the small roof constructed by the above construction method has a load resistance that satisfies the requirements of the Building Standards Act, but is required to have a load resistance higher than the Building Standards Act in areas with a large amount of snow. The structural strength tends to be insufficient.

また、上記小屋根の構築法では、小屋根ユニットに小屋束を含めていたことから、ユニットのサイズが非常に大きくなってトラックでの運搬やクレーンでの吊り上げ作業が困難となり易かった。しかも、柵状ユニットについてもクレーンで吊りながら母屋や軒桁に取り付ける必要があったため、作業は非常に困難で、ユニット化によるメリットを生かし切れていなかった。   Further, in the method for constructing the small roof, the small roof unit includes a bunch of huts. Therefore, the size of the unit becomes very large, and it is easy to carry the truck and to lift the crane. Moreover, because the fence-shaped unit also had to be attached to the purlin or eaves girder while being suspended by a crane, the work was very difficult, and the advantages of unitization were not fully utilized.

特開平９−１７０２８６号公報（第２−５頁、第１〜４図）JP-A-9-170286 (page 2-5, FIGS. 1-4)

本発明は、上記の如き問題に鑑みて為されたものであり、その目的とするところは、耐荷重性に優れた屋根構造体を構築することができ、しかも、運搬及び施工作業を容易化して安全性の向上及び工期の短縮も図れる屋根組み用垂木ユニット材及びそれを用いた屋根構築方法を提供することにある。   The present invention has been made in view of the problems as described above. The object of the present invention is to build a roof structure having excellent load resistance, and to facilitate transportation and construction work. Another object of the present invention is to provide a rafter unit material for roofing that can improve safety and shorten the construction period, and a roof construction method using the same.

本発明者が上記課題を解決するために採用した手段を添付図面を参照して説明すれば次のとおりである。   Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

即ち、本発明は、山形に組み合わされた合掌材11・11と、この合掌材11・11の内股部に架け渡された横架材12と、この横架材12と前記合掌材11・11の頂部を連結する縦材13と、この縦材13の下方部両側から前記合掌材11・11側に斜設された斜材14・14とから成るユニット骨格材１と；
建築構造体Ｈの軒桁Ｎ・Ｎ間の梁材Ｘ上に立つ二本の柱材Ｙ・Ｙ上に位置する母屋Ｍ・Ｍ上に載置され、かつ、前記合掌材11・11と横架材12とから形成されるトライアングル部Ｔの前後両面に、内側の縦材13及び斜材14・14を全て覆うように重ね合わせて固定された、トライアングル部Ｔと略同形状のガセット板２・２とを包含して構成し、
前記ユニット骨格材１の合掌材11・11及び横架材12に加わる負荷を、前記トライアングル部Ｔ内の構成材とガセット板２・２とが補完補強し合って分散吸収可能とした点に特徴がある。 That is, the present invention includes a joint material 11, 11 combined in a mountain shape, a horizontal member 12 laid over the inner crotch of the joint material 11, 11, the horizontal member 12 and the joint material 11, 11. A unit frame material 1 comprising a vertical member 13 connecting the tops of the vertical members 13, and diagonal members 14 and 14 obliquely provided on both sides of the vertical member 13 from both sides of the vertical member 13;
It is placed on the purlins M and M located on the two pillars Y and Y that stand on the beam member X between the eaves beams N and N of the building structure H, and the horizontal material 11 and 11 around both sides of the triangle portion T that will be formed from the bridging member 12., fixed superposed so as to cover the entire inner side members 13 and diagonal members 14, 14, triangle portion T and substantially the same shape of the gusset plate 2・ Including 2,
The load applied to the joint members 11 and 11 and the horizontal member 12 of the unit skeleton member 1 is characterized in that the components in the triangle portion T and the gusset plates 2 and 2 complementarily reinforce each other so that they can be dispersed and absorbed. There is.

また本発明は、上記手段に加えて、ガセット板２に構造用合板を使用して強度向上及びコスト低減を図るという技術的手段を採用することもできる。   In addition to the above-described means, the present invention may employ technical means for improving strength and reducing costs by using a structural plywood for the gusset plate 2.

一方、本発明は、上記構成による垂木ユニット材Ｕを所要の間隔をもって列立して横木材５・５…で連結することにより屋根組みブロックＢを作製するという技術的手段を採用することもできる。   On the other hand, the present invention can also employ a technical means for producing the roof assembly block B by arranging the rafter unit materials U having the above-described configuration in a row at a predetermined interval and connecting them with the horizontal timbers 5. .

また本発明は、上記構成による屋根組みブロックＢを、築造中の建物構造体Ｈにおける母屋Ｍ・Ｍ上に桁行方向に順々に配置固定して、屋根全体の骨組みを施工するという技術的手段を採用することもできる。   Further, the present invention provides a technical means for constructing a framework of the entire roof by sequentially arranging and fixing the roof frame block B having the above-described configuration on the main buildings M and M in the building structure H being built in the row direction. Can also be adopted.

更に本発明は、上記屋根施工方法において、屋根組みブロックＢを母屋Ｍ・Ｍ上に配置した後、連結金具４である煽止め金具41と羽子板ボルト42を使用して垂木ユニット材Ｕのユニット骨格材１の両端部と軒桁Ｎ・Ｎとを連結固定するという技術的手段を採用することもできる。   Furthermore, the present invention provides a unit skeleton of the rafter unit material U using the bar fittings 41 and the battledore bolts 42 which are the connecting fittings 4 after the roof building block B is arranged on the purlins M and M in the above roof construction method. It is also possible to adopt a technical means for connecting and fixing both ends of the material 1 and the eaves beams N and N.

本発明では、合掌材とその内側に架け渡す横架材とを含んで垂木ユニットを作製し、これを複数並べて横木で連結して屋根組みブロックを構成したことにより、当該屋根組みブロックを工場等で予め作製して現場に持ち込めば、既設の母屋上に屋根組みブロックをクレーン等で載置していくだけで簡単に小屋根を構築することが可能となる。   In the present invention, a rafter unit is manufactured including a joint material and a horizontal member that spans the inside, and a plurality of the rafter units are arranged and connected by a crossbar to form a roof assembly block. If it is made in advance and brought into the field, it is possible to easily construct a small roof simply by placing the roof building block on the existing main building with a crane or the like.

また、上記小屋根において、垂木ユニットの合掌材と横架材に加わる荷重は、合掌材と横架材の内側に設けた補強用の骨格材とその前後に取り付けたガセット板とによって効果的に分散して吸収することができるため、耐荷重性の向上を図ることもできる。   Also, in the small roof, the load applied to the rafter unit's joint material and horizontal member is effectively reduced by the reinforcement material provided on the inner side of the joint member and the horizontal member, and the gusset plates attached to the front and rear of the reinforcing member. Since it can be dispersed and absorbed, load resistance can be improved.

そしてまた、上記垂木ユニットから成る屋根組みブロックには小屋束や母屋を含める必要がないため、コンパクトなサイズで運搬を行うことができ、クレーンでの吊り上げ作業も容易となる。また、クレーンで吊りながら取り付けを行う必要もないため、作業の迅速化及び安全性の向上を図ることもできる。   Moreover, since it is not necessary to include a shed bundle or a purlin in the roof assembly block made of the rafter unit, it can be transported in a compact size, and lifting work with a crane is facilitated. Moreover, since it is not necessary to carry out attachment while hanging with a crane, work can be speeded up and safety can be improved.

したがって、本発明により、簡単かつ迅速にそして安全に小屋根の構築を行うことができ、しかも、積雪地域において問題なく使用できる屋根組み用ユニットを提供できることから、本発明の実用的利用価値は頗る高い。   Therefore, according to the present invention, a small roof can be constructed easily, quickly and safely, and a roof building unit that can be used without any problem in a snowy area can be provided. Therefore, the practical utility value of the present invention is increased. high.

本発明の実施例１における屋根組み用垂木ユニットを表わす全体斜視図である。It is a whole perspective view showing the rafter unit for roofing in Example 1 of the present invention. 本発明の実施例１における屋根組み用垂木ユニットを表わす分解斜視図である。It is a disassembled perspective view showing the rafter unit for roofing in Example 1 of this invention. 本発明の実施例１における屋根組み用垂木ユニットを表わす全体正面図である。It is a whole front view showing the rafter unit for roof construction in Example 1 of the present invention. 本発明の実施例１における屋根組みブロックを用いた屋根構造を表わす説明斜視図である。It is an explanatory perspective view showing the roof structure using the roof assembly block in Example 1 of the present invention. 本発明の実施例１における屋根組みブロックを用いて屋根を施工した建築構造物を表わす全体正面図である。It is a whole front view showing the building structure which constructed the roof using the roof assembly block in Example 1 of this invention. 本発明の実施例１における屋根組みブロックの取付け構造を表わす部分側面図である。It is a partial side view showing the attachment structure of the roof assembly block in Example 1 of this invention. 本発明の実施例１における屋根組みブロックの取付け構造を表わす拡大斜視図である。It is an expansion perspective view showing the attachment structure of the roof assembly block in Example 1 of this invention.

『実施例１』
本発明の実施例１を、図１から図５に基いて以下に説明する。ちなみに同図において、符号１で指示するものは、ユニット骨格材であり、符号２で指示するものは、ガセット板である。また符号３で指示するものは、横木材であり、符号４で指示するものは、連結金具である。 “Example 1”
A first embodiment of the present invention will be described below with reference to FIGS. Incidentally, in the figure, what is indicated by reference numeral 1 is a unit skeleton, and what is indicated by reference numeral 2 is a gusset plate. Moreover, what is indicated by reference numeral 3 is a horizontal wood, and what is indicated by reference numeral 4 is a connecting metal fitting.

まず実施例１では、二枚の板材が山形に組み合わせた合掌材11・11の内股部に横架材12を連結すると共に、前記合掌材11・11の頂点部と横架材12の中央部には縦材13を連結し、更に縦材13の下部両側と合掌材11・11とを斜材14・14で連結してユニット骨格材１を形成している(図１、図２参照)。   First, in the first embodiment, the horizontal member 12 is connected to the inner crotch portion of the joint material 11, 11 in which two plates are combined in a mountain shape, and the apex portion of the joint material 11, 11 and the central portion of the horizontal member 12 are combined. Is connected to the longitudinal member 13 and further, the lower side of the longitudinal member 13 and the jointed members 11 and 11 are connected to each other with diagonal members 14 and 14 to form a unit frame material 1 (see FIGS. 1 and 2). .

そして、上記ユニット骨格材１の合掌材11・11と横架材12とが形成するトライアングル部Ｔの前後両面に、当該部位と略同形状のガセット板２・２を固定して垂木ユニット材Ｕを構成している。   Then, the rafter unit material U is fixed by fixing gusset plates 2 and 2 having substantially the same shape to the front and rear surfaces of the triangle portion T formed by the joint members 11 and 11 and the horizontal member 12 of the unit skeleton material 1. Is configured.

なお実施例１では、ガセット板２・２に安価で耐久性に優れた構造用合板を使用し、この構造用合板製のガセット板２・２を、各構成材を仮止めしたユニット骨格材１のトライアングル部Ｔに重ね合わせて、その周縁部を10cm間隔で釘打ちすることにより固定している(図３参照)。   In Example 1, a structural plywood that is inexpensive and excellent in durability is used for the gusset plates 2 and 2, and the unit frame material 1 in which the structural members are temporarily fixed to the gusset plates 2 and 2 made of this structural plywood. The peripheral portion of the triangle is overlapped with the triangle portion T and fixed by nailing at intervals of 10 cm (see FIG. 3).

次に、上記垂木ユニット材Ｕを用いて屋根を構築する方法を説明する。まず、工場において木材及び構造用合板から上記垂木ユニット材Ｕを作製した後、垂木ユニット材Ｕを所要の間隔で列立し横木材３・３…で連結して屋根組みブロックＢを作製する(図４参照)。   Next, a method for constructing a roof using the rafter unit material U will be described. First, after manufacturing the rafter unit material U from wood and structural plywood at a factory, the rafter unit materials U are arranged at a required interval and connected by horizontal timbers 3, 3,. (See FIG. 4).

そして、上記屋根組みブロックＢを現場に搬送した後、クレーン等で屋根組みブロックＢを持ち上げて築造中の建築構造体Ｈの母屋Ｍ・Ｍ上に載置し、屋根組みブロックＢの垂木ユニット材Ｕの両端部と軒桁Ｎとを連結金具４で固定して据え付けを行う(図５参照)。   Then, after transporting the roof building block B to the site, the roof building block B is lifted with a crane or the like and placed on the main building M / M of the building structure H being built, and the rafter unit material of the roof building block B The both ends of U and the eaves girder N are fixed by the connecting metal fittings 4 (see FIG. 5).

なお実施例１では、図６に示すように上記連結金具４に煽止め金具41と羽子板ボルト42を使用して垂木ユニット材Ｕと軒桁Ｎとを強固に連結している。   In the first embodiment, as shown in FIG. 6, the rafter unit material U and the eaves girder N are firmly connected to the connecting metal fitting 4 by using the bar fixing metal 41 and the battledore bolt 42.

そして、上記屋根組みブロックＢを桁行方向に並べて順次据え付けた後、垂木ユニット材Ｕ・Ｕの上部に野地板Ｐを取り付けて屋根施工を行う。なおこの際、屋根組みブロックＢ同士を釘打ちして連結し易くするために、屋根組みブロックＢ・Ｂの横木材３・３…の位置は互い違いにしておくのが望ましい。   Then, after the roof building blocks B are arranged side by side in the column direction and are sequentially installed, the roof plate construction is performed by attaching the field board P to the upper part of the rafter unit materials U and U. In this case, it is desirable that the positions of the horizontal timbers 3, 3... Of the roof building blocks B, B are staggered so that the roof building blocks B can be easily nailed together.

このように屋根の構築において、工場等で製作可能な垂木ユニット材Ｕ及び屋根組みブロックＢを利用すれば、職人の高度な技能や高所での長時間の作業も不要となるため、施工作業の容易化並びに工期の短縮を図れる。   In this way, in the construction of the roof, if the rafter unit material U and the roof building block B that can be manufactured at the factory, etc. are used, it is not necessary to have high skill of the craftsman and long work at high places. Can be simplified and the construction period can be shortened.

しかも、上記屋根組みブロックＢを用いた屋根構造体において、垂木ユニット材Ｕに加わる荷重は、ユニット骨格材１の合掌材11・11と横架材12の内側に設けた縦材13や斜材14・14および合掌材11・11と横架材12により形成されるトライアングル部Ｔの前後に取り付けたガセット板２・２により効果的に分散吸収できる。   Moreover, in the roof structure using the above-described roof building block B, the load applied to the rafter unit material U is the vertical members 13 and diagonal members provided inside the palm members 11 and 11 and the horizontal members 12 of the unit frame material 1. 14 and 14 and the gusset plates 2 and 2 attached in front of and behind the triangle portion T formed by the palm members 11 and 11 and the horizontal member 12 can be effectively dispersed and absorbed.

また、上記屋根組みブロックＢを用いた屋根工法においては、クレーンで吊りながら部材を取り付ける作業が要求されないため、施工作業を迅速かつ安全に行うことができ、工期の短縮も実現できる。   Moreover, in the roof construction method using the above-mentioned roof building block B, the work of attaching a member while being suspended by a crane is not required, so that the construction work can be performed quickly and safely, and the construction period can be shortened.

本発明は、概ね上記のように構成されるが、本発明は図示の実施形態に限定されるものでは決してなく、「特許請求の範囲」の記載内において種々の変更が可能であって、例えば、垂木ユニットＵや屋根組みブロックＢのサイズは屋根の間隔や高さに合わせて自由に設計を変更することができ、また、垂木ユニット材Ｕにおけるガセット板２のサイズも求められる耐荷重性に合わせて自由に変更することが可能である。   The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. For example, The size of the rafter unit U and the roof building block B can be freely changed in accordance with the interval and height of the roof, and the size of the gusset plate 2 in the rafter unit material U is also required for load resistance. It is possible to change freely.

また、ガセット板２の材料についても、構造用合板に限らず金属プレート等を使用することもでき、またユニット骨格材１に対するガセット板２の固定方法についても釘打ち以外の方法であってもよく、上記何れのものも本発明の技術的範囲に属する。   Further, the material of the gusset plate 2 is not limited to the structural plywood, and a metal plate or the like can be used, and the fixing method of the gusset plate 2 to the unit frame material 1 may be a method other than nailing. Any of the above belongs to the technical scope of the present invention.

近年、建築業界の競争激化により工期が短くかつ低コストで住宅施工を行える技術が求められており、また同時に、政府の「２００年住宅」構想によって、耐久性に優れた建築構造の要請も高まっている。   In recent years, due to intensifying competition in the construction industry, there has been a demand for technologies that can shorten the construction period and perform housing construction at a low cost. At the same time, the government's “200-year housing” concept has increased the demand for highly durable building structures. ing.

そのような中で、本発明の屋根組み用垂木ユニット、屋根組みブロック及び建築の屋根施工方法は、積雪等が多い地域でも耐久性に優れ、かつ、施工作業の大幅な効率化も可能な有用な技術であることから、市場における需要は大きく、その産業上の利用価値は非常に高い。   Under such circumstances, the rafter unit for roof construction, the roof construction block, and the construction roof construction method of the present invention are excellent in durability even in areas where there is a lot of snow and the like, and can be used to greatly improve the efficiency of construction work. Therefore, the demand in the market is large and its industrial utility value is very high.

１ ユニット骨格材
11 合掌材
12 横架材
13 縦材
14 斜材
２ ガセット板
３ 横木材
４ 連結金具
41 煽止め金具
42 羽子板ボルト
Ｔ トライアングル部
Ｕ 垂木ユニット材
Ｂ 屋根組みブロック
Ｎ 軒桁
Ｍ 母屋
Ｈ 建築構造体
Ｐ 野地板 1 Unit framework
11 Joint material
12 Horizontal member
13 Longitudinal
14 Diagonal material 2 Gusset board 3 Horizontal wood 4 Connecting bracket
41 Bracket
42 Battledore bolt T Triangle part U Rafter unit material B Roofing block N eaves M Purlin H Building structure P Field plate

Claims (5)

山形に組み合わされた合掌材11・11と、この合掌材11・11の内股部に架け渡された横架材12と、この横架材12と前記合掌材11・11の頂部を連結する縦材13と、この縦材13の下方部両側から前記合掌材11・11側に斜設された斜材14・14とから成るユニット骨格材１と；
建築構造体Ｈの軒桁Ｎ・Ｎ間の梁材Ｘ上に立つ二本の柱材Ｙ・Ｙ上に位置する母屋Ｍ・Ｍ上に載置され、かつ、前記合掌材11・11と横架材12とによって形成されるトライアングル部Ｔの前後両面に、内側の縦材13及び斜材14・14を全て覆うように重ね合わせて固定された、トライアングル部Ｔと略同形状のガセット板２・２とを包含して構成されており、
前記ユニット骨格材１の合掌材11・11及び横架材12に加わる負荷を、前記トライアングル部Ｔ内の構成材とガセット板２・２とが補完補強し合って分散吸収することを特徴とする屋根組み用垂木ユニット。 The joint material 11, 11 combined in a mountain shape, the horizontal member 12 laid over the inner crotch of the joint material 11, 11, and the vertical member that connects the horizontal member 12 and the top of the joint material 11, 11 A unit skeleton 1 comprising a member 13 and diagonal members 14 and 14 obliquely provided on both sides of the vertical member 13 from both sides of the vertical member 13;
It is placed on the purlins M and M located on the two pillars Y and Y that stand on the beam member X between the eaves beams N and N of the building structure H, and the horizontal material 11 and 11 around both sides of the triangle portion T that will be formed by the bridging member 12, which is fixed by superposing so as to cover the entire inner side members 13 and diagonal members 14, 14, triangle portion T and substantially the same shape of the gusset plate 2・ It is composed of 2 and
The load applied to the joint members 11 and 11 and the horizontal member 12 of the unit skeleton member 1 is distributed and absorbed by complementing and reinforcing the components in the triangle portion T and the gusset plates 2 and 2. Rafter unit for roofing. ガセット板２に構造用合板が使用されていることを特徴とする請求項１記載の屋根組み用垂木ユニット。   The roof rafter unit for roof construction according to claim 1, wherein a structural plywood is used for the gusset plate 2. 山形に組み合わされた合掌材11・11と、この合掌材11・11の内股部に架け渡された横架材12と、この横架材12と前記合掌材11・11の頂部を連結する縦材13と、この縦材13の下方部両側から前記合掌材11・11側に斜設された斜材14・14とから成るユニット骨格材１と；
前記合掌材11・11と横架材12とが形成するトライアングル部Ｔの前後両面に重ね合わせて固定された略同形状のガセット板２・２とを包含して構成された垂木ユニット材Ｕを、所要の間隔をもって列立し横木材３・３…で連結したことを特徴とする屋根組みブロック。 The joint material 11, 11 combined in a mountain shape, the horizontal member 12 laid over the inner crotch of the joint material 11, 11, and the vertical member that connects the horizontal member 12 and the top of the joint material 11, 11 A unit skeleton 1 comprising a member 13 and diagonal members 14 and 14 obliquely provided on both sides of the vertical member 13 from both sides of the vertical member 13;
A rafter unit material U configured to include gusset plates 2 and 2 having substantially the same shape, which are overlapped and fixed on both front and rear surfaces of a triangle portion T formed by the jointing members 11 and 11 and the horizontal member 12. A roof assembly block characterized by being lined up at a required interval and connected by horizontal timbers 3, 3. 山形に組み合わされた合掌材11・11と、この合掌材11・11の内股部に架け渡された横架材12と、この横架材12と前記合掌材11・11の頂部を連結する縦材13と、この縦材13の下方部両側から前記合掌材11・11側に斜設された斜材14・14とから成るユニット骨格材１と；
前記合掌材11・11と横架材12とが形成するトライアングル部Ｔの前後両面に重ね合わせて固定された略同形状のガセット板２・２とを包含して構成された垂木ユニット材Ｒを、所要の間隔をもって列立して横木材３・３…で連結することにより屋根組みブロックＢを作製し、
この屋根組みブロックＢを、築造中の建物構造体Ｈにおける母屋Ｍ・Ｍ上に桁行方向に順々に配置固定して、屋根全体の骨組みを施工することを特徴とする建物の屋根施工方法。 The joint material 11, 11 combined in a mountain shape, the horizontal member 12 laid over the inner crotch of the joint material 11, 11, and the vertical member that connects the horizontal member 12 and the top of the joint material 11, 11 A unit skeleton 1 comprising a member 13 and diagonal members 14 and 14 obliquely provided on both sides of the vertical member 13 from both sides of the vertical member 13;
A rafter unit material R configured to include gusset plates 2 and 2 having substantially the same shape, which are overlapped and fixed on both front and rear surfaces of a triangle portion T formed by the joint members 11 and 11 and the horizontal member 12. , Make a roof block B by lining up with the required spacing and connecting with horizontal timbers 3, 3 ...
A roof construction method for a building, characterized in that the roof frame block B is arranged and fixed in order in the direction of a row on the purlins M and M in the building structure H being built, and the entire roof frame is constructed. 屋根組みブロックＢを母屋Ｍ・Ｍ上に配置した後、連結金具４である煽止め金具41と羽子板ボルト42を使用して垂木ユニット材Ｕのユニット骨格材１の両端部と軒桁Ｎ・Ｎとを連結固定することを特徴とする請求項４に記載の建物の屋根施工方法。   After the roof building block B is arranged on the main building M / M, both ends of the unit frame 1 of the rafter unit material U and the eaves girder N / N using the fastening metal fitting 41 and the battledore bolt 42 which are the connecting metal fittings 4 The building roof construction method according to claim 4, wherein:
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