JP6423197B2 - Roof frame structure - Google Patents

Roof frame structure Download PDF

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JP6423197B2
JP6423197B2 JP2014158429A JP2014158429A JP6423197B2 JP 6423197 B2 JP6423197 B2 JP 6423197B2 JP 2014158429 A JP2014158429 A JP 2014158429A JP 2014158429 A JP2014158429 A JP 2014158429A JP 6423197 B2 JP6423197 B2 JP 6423197B2
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bundle
main beam
rafter
main
take
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JP2016035170A (en
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哲夫 舛田
哲夫 舛田
高夫 小山
高夫 小山
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Asahi Kasei Homes Corp
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Description

本発明は、屋根架構構造に関する。   The present invention relates to a roof frame structure.

従来、寄棟形式の屋根として、下部構造体と、下部構造体から立ち上がる母屋パネルとに垂木部材を複数架け渡し、垂木部材に屋根パネルを架設する構成が知られている。このような架構を有する屋根が、例えば特許文献１に記載されている。   2. Description of the Related Art Conventionally, a structure in which a plurality of rafter members are bridged between a lower structure and a purlin panel rising from the lower structure and a roof panel is erected on the rafter member is known as a dormitory roof. A roof having such a frame is described in Patent Document 1, for example.

特開２００２−２１２４７号公報JP 2002-21247 A

ここで、本技術分野においては、空間を有効利用するため、垂木部材の下方側の空間を広く確保することが求められている。   Here, in this technical field, in order to effectively use the space, it is required to secure a wide space below the rafter member.

そこで、本発明は、垂木部材の下方側の空間を広く確保することが可能な屋根架構構造を提供することを目的とする。   Then, an object of this invention is to provide the roof frame structure which can ensure the space below the rafter member widely.

本発明の一側面に係る屋根架構構造は、下部構造体の上部に設けられる小屋組架構によって複数の垂木部材を傾斜状に支持して寄棟屋根又は切妻屋根の骨組みを形成する屋根架構構造であって、小屋組架構は、水平状に設けられる母屋梁と、下部構造体から立ち上がって母屋梁を水平状に支持する複数の束と、母屋梁又は束から水平状に突出する持出梁と、を備え、束の下部構造体からの突出高さは、垂木部材の上端部によって形成される棟高さ以下の高さに設定され、垂木部材の下部は、下部構造体に支持され、垂木部材の途中部は、母屋梁又は持出梁に支持され、垂木部材は、垂木部材の上部が母屋梁又は持出梁から斜め上方に片持ち状に突出する状態で下部構造体と、母屋梁又は持出梁とに架設される。   A roof frame structure according to one aspect of the present invention is a roof frame structure in which a plurality of rafter members are supported in an inclined manner by a hut frame frame provided at an upper part of a lower structure to form a frame of a dormitory roof or a gable roof. The shed frame is composed of a horizontal main beam, a plurality of bundles that stand up from the lower structure and support the main beam horizontally, and a protruding beam that protrudes horizontally from the main beam or bundle. The protruding height of the bundle from the lower structure is set to a height equal to or lower than the height of the ridge formed by the upper end of the rafter member, and the lower portion of the rafter member is supported by the lower structure, The rafter member is supported by the main beam or take-out beam, and the rafter member has a lower structure, the main beam, or the upper part of the rafter member projecting obliquely upward from the main beam or the take-out beam. It is installed on the takeout beam.

この屋根架構構造において、各垂木部材は、下端部が下部構造体に支持され、途中部が小屋組架構の母屋梁又は持出梁に支持される。このように、垂木部材の下端部と途中部とが下部構造体と小屋組架構とにそれぞれ支持されるので、垂木部材の上端部を強固に固定する必要が無い。このため、垂木部材の上端部を支持する棟梁や棟梁を受ける束柱等の構造部材を不要とすることができる。   In this roof frame structure, each rafter member has a lower end portion supported by the lower structure and a midway portion supported by the main beam or the takeout beam of the roof frame structure. Thus, since the lower end part and middle part of a rafter member are each supported by a lower structure and a shed frame, it is not necessary to firmly fix the upper end part of a rafter member. For this reason, structural members, such as a ridge beam which supports the upper end part of a rafter member, and a bundle pillar which receives a ridge beam, can be made unnecessary.

また、母屋梁を束で支持する構成であるため、母屋梁の途中部の直下（母屋梁を支持する束と束との間の直下）に当該母屋梁を支持する構造部材を設ける必要が無い。これにより、母屋梁の下方側の空間であって平面視で母屋梁を挟んで両側に位置する空間の一体性を高めることができる。   In addition, since the main beam is supported by a bundle, there is no need to provide a structural member for supporting the main beam directly below the middle part of the main beam (directly between the bundle that supports the main beam). . As a result, it is possible to enhance the integrity of the space located on both sides of the main beam in a plan view and sandwiching the main beam in plan view.

また、持出梁によって垂木部材を支持することにより、束の本数を増やすことなく、持出梁によって垂木部材を支持することが可能となる。以上のように、この屋根架構構造では、垂木部材の下方側の空間を広く確保することが可能となる。   Further, by supporting the rafter member by the take-out beam, it becomes possible to support the rafter member by the take-out beam without increasing the number of bundles. As described above, in this roof frame structure, it is possible to secure a wide space on the lower side of the rafter member.

束は、母屋梁の下端部を支持し、母屋梁は、束によって支持される部位から持ち出し状に突出する持出部を有していてもよい。この場合には、持出部によって垂木部材を支持することができる。これにより、束の本数を増やすことなく、持出部によって垂木部材を支持することが可能となり、架構が過大となることを抑制することができる。   The bundle may support a lower end portion of the main beam, and the main beam may have a carry-out portion that protrudes from a portion supported by the bundle. In this case, the rafter member can be supported by the take-out part. Thereby, it is possible to support the rafter member by the take-out part without increasing the number of bundles, and it is possible to suppress the frame from becoming excessive.

互に隣接する持出梁の先端部同士が連結、互に隣接する持出部の先端部同士が連結、持出梁の先端部と母屋梁の途中部とが連結、持出部の先端部と母屋梁の途中部とが連結、又は、持出梁の先端部と持出部の先端部とが連結されていてもよい。この場合には、持出梁同士の連結部の下方側の空間、持出部同士の連結部の下方側の空間、持出梁又は持出部と母屋梁の途中部との連結部の下方側の空間、又は、持出梁と持出部との連結部の下方側の空間に束等が設けられていないので、連結部の下方側の空間の一体性を高めることができる。また、小屋裏空間の階下の空間と小屋裏空間とをつなぐ吹抜けを、これらの連結部の下方側に設けることができる。   The leading ends of the take-out beams adjacent to each other are connected, the tip portions of the take-out portions adjacent to each other are connected, the tip portion of the take-out beam and the middle portion of the main beam are connected, and the tip portion of the take-out portion And the middle part of the main beam may be connected, or the tip part of the takeout beam and the tip part of the takeout part may be connected. In this case, the space below the connecting portion between the take-out beams, the space below the connecting portion between the take-out portions, the lower portion of the connecting portion between the take-out beam or the take-out portion and the middle part of the main beam Since a bundle or the like is not provided in the space on the side or the space below the connecting portion between the take-out beam and the take-out portion, the integrity of the space below the connecting portion can be improved. Moreover, the colonnade which connects the downstairs space of the attic space and the attic space can be provided on the lower side of these connecting portions.

本発明の一側面によれば、垂木部材の下方側の空間を広く確保することが可能となる。   According to one aspect of the present invention, it is possible to ensure a wide space on the lower side of the rafter member.

一実施形態に係る建物の屋根の形状を示す平面図である。It is a top view which shows the shape of the roof of the building which concerns on one Embodiment. 図１の屋根架構構造を示す斜視図である。It is a perspective view which shows the roof frame structure of FIG. 図１の屋根架構構造を示す斜視図であり、垂木部材を省略した図である。It is a perspective view which shows the roof frame structure of FIG. 1, and is a figure which abbreviate | omitted the rafter member. 図３のIV-IV線に沿った断面図である。FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. 垂木受部材を示す図であり、（ａ）は正面図、（ｂ）は側面図である。It is a figure which shows a rafter receiving member, (a) is a front view, (b) is a side view. 隅木と垂木部材との連結状態を示す図であり、（ａ）は隅木を示す図であり、（ｂ）は隅木と垂木部材との連結状態を示す一部破断図である。It is a figure which shows the connection state of a corner tree and a rafter member, (a) is a figure which shows a corner tree, (b) is a partially broken figure which shows the connection state of a corner tree and a rafter member. 持出梁周りにおける母屋梁の支持構造を示す図であり、（ａ）は正面図、（ｂ）は側面図である。It is a figure which shows the support structure of the main beam around the carrying-out beam, (a) is a front view, (b) is a side view. 持出部周りにおける母屋梁の支持構造を示す正面図である。It is a front view which shows the support structure of the main beam around the taking-out part. 角部における母屋梁の支持構造を示す図であり、（ａ）は水平方向から見た図、（ｂ）は上方方向から見た図である。It is a figure which shows the support structure of the main beam in a corner | angular part, (a) is the figure seen from the horizontal direction, (b) is the figure seen from the upper direction.

以下、本発明を適用した建物の一実施形態について図面を参照しながら説明する。なお、図面の説明において同一の要素には同一の符号を付し、重複する説明を省略する。   Hereinafter, an embodiment of a building to which the present invention is applied will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

図１に示すように、本実施形態に係る建物１は、上方から見たときに屋根２が（水平方向に延在する棟が）Ｌ字状に折れ曲がる寄棟屋根構造となっている。本実施形態では、架構の配置説明を容易にするため、図１の方位記号が示す通り、上方向を北側として説明する。図２及び図３においても、各図の方位記号が示す通り、左斜め上方向を北側として説明する。図１に示すように、Ｌ字状に折れ曲がる屋根２において、最も長い第一棟２ａが東西方向に沿って延在し、第一棟２ａよりも短い第２棟２ｂが南北方向に沿って延在しているものとする。   As shown in FIG. 1, the building 1 according to the present embodiment has a dormitory roof structure in which a roof 2 (a ridge extending in the horizontal direction) is bent in an L shape when viewed from above. In the present embodiment, in order to facilitate the explanation of the arrangement of the frame, the upper direction is described as the north side as indicated by the bearing symbol in FIG. 2 and 3, as shown by the azimuth symbol in each figure, the description will be made assuming that the upper left direction is the north side. As shown in FIG. 1, in the roof 2 bent in an L shape, the longest first building 2a extends along the east-west direction, and the second building 2b shorter than the first building 2a extends along the north-south direction. It is assumed to exist.

建物１の屋根架構構造の詳細について、図２及び図３を用いて説明する。図２及び図３に示すように、建物１は、下部構造体３と、下部構造体３の上部に設けられる小屋組架構４と、小屋組架構４によって支持される屋根２とを有する。図２及び図３では、下部構造体３を太線で描き、小屋組架構４の束Ｔ１等を太線で描き、小屋組架構４の母屋梁Ｍ１等を太い一点鎖線で描き、屋根２を構成する垂木部材２１等を下部構造体３よりも細い線で描いている。   The detail of the roof frame structure of the building 1 is demonstrated using FIG.2 and FIG.3. As shown in FIGS. 2 and 3, the building 1 includes a lower structure 3, a shed assembly frame 4 provided on the upper portion of the lower structure 3, and a roof 2 supported by the shed assembly frame 4. 2 and 3, the lower structure 3 is drawn with a thick line, the bundle T1 of the shed structure 4 is drawn with a thick line, the main beam M1 of the shed structure 4 is drawn with a thick one-dot chain line, and the roof 2 is configured. The rafter member 21 and the like are drawn with a line thinner than the lower structure 3.

まず、下部構造体３について説明する。図２及び図３では、下部構造体３の最上部の梁のみを示している。下部構造体３は、基礎から立ち上がる複数本の柱部材と、隣り合う柱部材間に架設される複数本の梁とを備える鉄骨造となっている。特に下部構造体３の上部には、南北方向に延在する、第１梁Ｂ１、第２梁Ｂ２、第３梁Ｂ３及び第４梁Ｂ４と、東西方向に延在する第１１梁Ｂ１１、第１２梁Ｂ１２及び第１３梁Ｂ１３とが設けられている。   First, the lower structure 3 will be described. 2 and 3, only the uppermost beam of the lower structure 3 is shown. The lower structure 3 has a steel structure including a plurality of column members rising from the foundation and a plurality of beams provided between adjacent column members. In particular, in the upper part of the lower structure 3, the first beam B1, the second beam B2, the third beam B3 and the fourth beam B4 extending in the north-south direction, the eleventh beam B11 extending in the east-west direction, 12 beams B12 and 13th beam B13 are provided.

第１梁Ｂ１と第２梁Ｂ２とは長さが互いに等しい。第３梁Ｂ３と第４梁Ｂ４とは互いに長さが等しい。第３梁Ｂ３及び第４梁Ｂ４は、第１梁Ｂ１及び第２梁Ｂ２よりも長さが長い。第１梁Ｂ１〜第４梁Ｂ４は、西側から東側に向かってこの並び順で配置されている。第１梁Ｂ１〜第４梁Ｂ４の北側の端部は、第１３梁Ｂ１３に連結されている。なお、第１梁Ｂ１の北側の端部は第１３梁Ｂ１３の西側の端部に連結されている。第４梁Ｂ４の北側の端部は、第１３梁Ｂ１３の東側の端部に連結されている。   The first beam B1 and the second beam B2 have the same length. The third beam B3 and the fourth beam B4 have the same length. The third beam B3 and the fourth beam B4 are longer than the first beam B1 and the second beam B2. The first beam B1 to the fourth beam B4 are arranged in this order from the west side to the east side. The north ends of the first beam B1 to the fourth beam B4 are connected to the thirteenth beam B13. The north end of the first beam B1 is connected to the west end of the thirteenth beam B13. The north end of the fourth beam B4 is connected to the east end of the thirteenth beam B13.

第１２梁Ｂ１２と第１３梁Ｂ１３とは互いに長さが等しい。第１１梁Ｂ１１は、第１２梁Ｂ１２よりも長さが短い。第１２梁Ｂ１２の西側の端部は、第１梁Ｂ１の南側の端部に連結されている。第１２梁Ｂ１２の途中部は、第２梁Ｂ２の南側の端部に連結されている。第１２梁Ｂ１２の東側の端部は、第４梁Ｂ４の途中部に連結されている。第１２梁Ｂ１２と第３梁Ｂ３とは、平面視において互いに直交している。第１１梁Ｂ１１の両端部は、第３梁Ｂ３及び第４梁Ｂ４の南側の端部にそれぞれ連結されている。   The twelfth beam B12 and the thirteenth beam B13 have the same length. The eleventh beam B11 is shorter in length than the twelfth beam B12. The west end of the twelfth beam B12 is connected to the south end of the first beam B1. The middle part of the twelfth beam B12 is connected to the south end of the second beam B2. The east end of the twelfth beam B12 is connected to the middle portion of the fourth beam B4. The twelfth beam B12 and the third beam B3 are orthogonal to each other in plan view. Both ends of the eleventh beam B11 are connected to the south ends of the third beam B3 and the fourth beam B4, respectively.

南北方向において第１１梁Ｂ１１と第１２梁Ｂ１２との間には、第３梁Ｂ３と第４梁Ｂ４とに連結された第１４梁Ｂ１４が設けられている。南北方向において第１２梁Ｂ１２と第１３梁Ｂ１３との間には、第３梁Ｂ３と第４梁Ｂ４とに連結された第１５梁Ｂ１５が設けられている。南北方向において第１５梁Ｂ１５と第１３梁Ｂ１３との間には、第３梁Ｂ３と第４梁Ｂ４とに連結された第１７梁Ｂ１７が設けられている。南北方向において第１２梁Ｂ１２と第１３梁Ｂ１３との間には、第１梁Ｂ１と第３梁Ｂ３とに連結された第１６梁Ｂ１６が設けられている。なお、第１６梁Ｂ１６と第２梁Ｂ２とは、平面視において互いに直交している。南北方向において第１６梁Ｂ１６と第１３梁Ｂ１３との間には、第１梁Ｂ１と第２梁Ｂ２とに連結された第１８梁Ｂ１８が設けられている。   A fourteenth beam B14 connected to the third beam B3 and the fourth beam B4 is provided between the eleventh beam B11 and the twelfth beam B12 in the north-south direction. In the north-south direction, a fifteenth beam B15 connected to the third beam B3 and the fourth beam B4 is provided between the twelfth beam B12 and the thirteenth beam B13. A 17th beam B17 connected to the third beam B3 and the fourth beam B4 is provided between the 15th beam B15 and the 13th beam B13 in the north-south direction. In the north-south direction, a sixteenth beam B16 connected to the first beam B1 and the third beam B3 is provided between the twelfth beam B12 and the thirteenth beam B13. The 16th beam B16 and the second beam B2 are orthogonal to each other in plan view. An eighteenth beam B18 connected to the first beam B1 and the second beam B2 is provided between the sixteenth beam B16 and the thirteenth beam B13 in the north-south direction.

東西方向において第２梁Ｂ２と第３梁Ｂ３との間には、第１２梁Ｂ１２と第１６梁Ｂ１６とに連結された第５梁Ｂ５が設けられている。東西方向において第２梁Ｂ２と第３梁Ｂ３との間には、第１６梁Ｂ１６と第１３梁Ｂ１３とに連結された第６梁Ｂ６が設けられている。東西方向において第３梁Ｂ３と第４梁Ｂ４との間には、第１７梁Ｂ１７と第１３梁Ｂ１３とに連結された第７梁Ｂ７が設けられている。   In the east-west direction, a fifth beam B5 connected to the twelfth beam B12 and the sixteenth beam B16 is provided between the second beam B2 and the third beam B3. In the east-west direction, a sixth beam B6 connected to the sixteenth beam B16 and the thirteenth beam B13 is provided between the second beam B2 and the third beam B3. In the east-west direction, a seventh beam B7 connected to the seventeenth beam B17 and the thirteenth beam B13 is provided between the third beam B3 and the fourth beam B4.

第１梁Ｂ１〜第７梁Ｂ７、及び、第１１梁Ｂ１１〜第１８梁Ｂ１８は、同一水平面内に設けられている。下部構造体３を構成する各梁として、一例としてＨ形鋼を用いている。第１梁Ｂ１〜第７梁Ｂ７、及び、第１１梁Ｂ１１〜第１８梁Ｂ１８が、上部に設置される小屋組架構４及び屋根２からの荷重を受ける。なお、以下では、下部構造体３の最上部の外周縁を形成する梁を「下部構造梁Ｂ」という。即ち、下部構造梁Ｂは、第１梁Ｂ１と、第１２梁Ｂ１２の一部と、第３梁Ｂ３の一部と、第１１梁Ｂ１１と、第４梁Ｂ４と、第１３梁Ｂ１３とによって構成されている。   The first beam B1 to the seventh beam B7 and the eleventh beam B11 to the eighteenth beam B18 are provided in the same horizontal plane. As each example, an H-section steel is used as each beam constituting the lower structure 3. The first beam B1 to the seventh beam B7 and the eleventh beam B11 to the eighteenth beam B18 receive loads from the roof frame 4 and the roof 2 installed in the upper part. In the following, the beam forming the outermost peripheral edge of the lower structure 3 is referred to as “lower structure beam B”. That is, the lower structural beam B includes the first beam B1, the part of the twelfth beam B12, the part of the third beam B3, the eleventh beam B11, the fourth beam B4, and the thirteenth beam B13. It is configured.

次に、小屋組架構４について説明する。図２及び図３に示すように、小屋組架構４は、下部構造体３によって支持された束Ｔ１〜束Ｔ１２と、束Ｔ１〜束Ｔ１２によって支持された母屋梁Ｍ１〜母屋梁Ｍ６と、持出梁Ｍ１０とによって構成されている。束Ｔ１〜束Ｔ１２として、一例として円筒状の鋼管を用いている。母屋梁Ｍ１〜母屋梁Ｍ６、及び持出梁Ｍ１０として、一例として断面略Ｃ字状に形成された長尺の鋼材を用いている。   Next, the hut assembly frame 4 will be described. As shown in FIGS. 2 and 3, the shed assembly frame 4 includes a bundle T1 to a bundle T12 supported by the lower structure 3, a main beam M1 to a main beam M6 supported by the bundle T1 to the bundle T12, It is comprised by the outgoing beam M10. For example, cylindrical steel pipes are used as the bundle T1 to the bundle T12. As the main beam M1 to the main beam M6 and the carry beam M10, for example, long steel materials having a substantially C-shaped cross section are used.

より詳細には、束Ｔ１は、第２梁Ｂ２上における第１２梁Ｂ１２と第１６梁Ｂ１６との間に立設されている。束Ｔ２は、第５梁Ｂ５上に立設されている。束Ｔ３及び束Ｔ４は、第１４梁Ｂ１４上において西側から東側に向かって順に立設されている。束Ｔ５及び束Ｔ６は、第１５梁Ｂ１５上において西側から東側に向かって順に立設されている。束Ｔ７は、第１７梁Ｂ１７と第７梁Ｂ７との接続部上に立設されている。束Ｔ８は、第７梁Ｂ７上に立設されている。束Ｔ９は、第６梁Ｂ６上に立設されている。束Ｔ１０は、第１８梁Ｂ１８と第２梁Ｂ２との接続部上に立設されている。束Ｔ１１は、第１８梁Ｂ１８上に立設されている。束Ｔ１２は、第１６梁Ｂ１６上における第１梁Ｂ１と第２梁Ｂ２との間に立設されている。束Ｔ１〜束Ｔ１２における下部構造体３の最上部からの突出高さは、垂木部材２１の上端部によって形成される棟高さ以下の高さに設定されている。   More specifically, the bundle T1 is erected between the twelfth beam B12 and the sixteenth beam B16 on the second beam B2. The bundle T2 is erected on the fifth beam B5. The bundle T3 and the bundle T4 are erected in order from the west side to the east side on the fourteenth beam B14. The bundle T5 and the bundle T6 are erected in order from the west side to the east side on the fifteenth beam B15. The bundle T7 is erected on the connection portion between the seventeenth beam B17 and the seventh beam B7. The bundle T8 is erected on the seventh beam B7. The bundle T9 is erected on the sixth beam B6. The bundle T10 is erected on the connection portion between the eighteenth beam B18 and the second beam B2. The bundle T11 is erected on the eighteenth beam B18. The bundle T12 is erected between the first beam B1 and the second beam B2 on the sixteenth beam B16. The protruding height from the uppermost part of the lower structure 3 in the bundle T1 to the bundle T12 is set to a height equal to or lower than the height of the ridge formed by the upper end portion of the rafter member 21.

母屋梁Ｍ１、母屋梁Ｍ３及び母屋梁Ｍ５は、東西方向に沿って延在し、互いに平行に配置されている。母屋梁Ｍ２、母屋梁Ｍ４及び母屋梁Ｍ６は、南北方向に沿って延在し、互いに平行に配置されている。母屋梁Ｍ１の西側の端部は束Ｔ１によって支持され、母屋梁Ｍ１の東側の部は束Ｔ５によって支持されている。母屋梁Ｍ１の途中部は、束Ｔ２によって支持されている。母屋梁Ｍ２の北側の端部は束Ｔ５によって支持され、母屋梁Ｍ２の南側の端部は束Ｔ３によって支持されている。母屋梁Ｍ３の西側の端部は束Ｔ３によって支持され、母屋梁Ｍ３の東側の端部は束Ｔ４によって支持されている。母屋梁Ｍ４の南側の端部は束Ｔ４によって支持され、母屋梁Ｍ４の北側の端部は束Ｔ８によって支持されている。母屋梁Ｍ４の途中部は、束Ｔ６及び束Ｔ７によって支持されている。   The main beam M1, the main beam M3, and the main beam M5 extend along the east-west direction and are arranged in parallel to each other. The main beam M2, the main beam M4, and the main beam M6 extend along the north-south direction and are arranged in parallel to each other. The west end of the main beam M1 is supported by the bundle T1, and the east side portion of the main beam M1 is supported by the bundle T5. The middle part of the main beam M1 is supported by the bundle T2. The north end of the main beam M2 is supported by the bundle T5, and the south end of the main beam M2 is supported by the bundle T3. The west end of the main beam M3 is supported by the bundle T3, and the east end of the main beam M3 is supported by the bundle T4. The south end of the main beam M4 is supported by the bundle T4, and the north end of the main beam M4 is supported by the bundle T8. A middle portion of the main beam M4 is supported by a bundle T6 and a bundle T7.

母屋梁Ｍ５の東側の端部は束Ｔ８によって支持され、母屋梁Ｍ５の西側の端部は束Ｔ１１によって支持されている。母屋梁Ｍ５の途中部は、束Ｔ９及び束Ｔ１０によって支持されている。母屋梁Ｍ６の北側の端部は束Ｔ１１によって支持され、母屋梁Ｍ６の途中部は束Ｔ１２によって支持されている。母屋梁Ｍ６の南側の端部は、束Ｔ１２よりも南側に水平方向に持ち出し状に突出している（図８参照）。以下、母屋梁Ｍ６において、束Ｔ１２から南側に突出した部位を「持出部Ｍ６ａ」という。持出部Ｍ６ａの詳細については後述する。持出梁Ｍ１０の西側の端部は母屋梁Ｍ６の南側の端部（持出部Ｍ６ａの先端部）に連結され、持出梁Ｍ１０の東側の端部は束Ｔ１によって支持されている。   The east end of the main beam M5 is supported by the bundle T8, and the west end of the main beam M5 is supported by the bundle T11. The middle part of the main beam M5 is supported by a bundle T9 and a bundle T10. The north end of the main beam M6 is supported by the bundle T11, and the middle portion of the main beam M6 is supported by the bundle T12. The end on the south side of the main beam M6 protrudes in the horizontal direction to the south side of the bundle T12 (see FIG. 8). Hereinafter, in the main beam M6, a portion protruding to the south side from the bundle T12 is referred to as a “take-out portion M6a”. Details of the take-out unit M6a will be described later. The end on the west side of the takeout beam M10 is connected to the end on the south side of the main beam M6 (the front end of the takeout portion M6a), and the end on the east side of the takeout beam M10 is supported by the bundle T1.

以上の構成により、母屋梁Ｍ１〜母屋梁Ｍ６及び持出梁Ｍ１０が屋根２の形状に沿って環状に連結される。母屋梁Ｍ１〜母屋梁Ｍ６及び持出梁Ｍ１０は、束Ｔ１〜Ｔ１２によって水平状に支持されている。束Ｔ１〜束Ｔ１２が母屋梁Ｍ１〜母屋梁Ｍ６及び持出梁Ｍ１０を支持することにより、下部構造体３の上部の第１梁Ｂ１等よりも所定高さ高い位置に母屋梁Ｍ１〜母屋梁Ｍ６及び持出梁Ｍ１０が配置される。なお、以下では、母屋梁Ｍ１〜母屋梁Ｍ６及び持出梁Ｍ１０を総称して「母屋梁Ｍ」ともいう。   With the above configuration, the main beam M1 to the main beam M6 and the carry-out beam M10 are connected in a ring shape along the shape of the roof 2. The main beam M1 to the main beam M6 and the takeout beam M10 are horizontally supported by the bundles T1 to T12. The bundle T1 to the bundle T12 support the main beam M1 to the main beam M6 and the takeout beam M10, so that the main beam M1 to the main beam are positioned at a predetermined height higher than the first beam B1 and the like on the upper part of the lower structure 3. M6 and takeout beam M10 are arranged. Hereinafter, the main beam M1 to the main beam M6 and the carry beam M10 are collectively referred to as “main beam M”.

次に、屋根２について説明する。図２及び図３に示すように、屋根２は、複数の垂木部材２１と、複数の隅木２２と、２つの棟継部材２３と、１つの谷木２４と、複数枚の野地板２５（図４参照）とを含んで構成されている。隅木２２は、屋根が山状に屈曲する部位に配置されている。谷木２４は、屋根が谷状に屈曲する部位に配置されている。２つの棟継部材２３は、それぞれ第一棟２ａ及び第２棟２ｂに対応する位置に配置されている。   Next, the roof 2 will be described. As shown in FIGS. 2 and 3, the roof 2 includes a plurality of rafter members 21, a plurality of corner trees 22, two ridge joint members 23, one valley 24, and a plurality of field boards 25 (see FIG. 2). 4). The corner tree 22 is disposed at a portion where the roof is bent in a mountain shape. The valley tree 24 is disposed at a site where the roof bends in a valley shape. The two building connection members 23 are arranged at positions corresponding to the first building 2a and the second building 2b, respectively.

垂木部材２１は、屋根パネルを設置する際の下地となる部材である。垂木部材２１の下端部近傍（下部）は下部構造梁Ｂによって支持され、垂木部材２１の途中部は母屋梁Ｍによって支持されている。垂木部材２１は、垂木部材２１の上部が母屋梁Ｍから斜め上方に片持ち状に突出する状態で下部構造梁Ｂ及び母屋梁Ｍによって支持されている。垂木部材２１の上端部は、棟継部材２３又は隅木２２に連結されている。   The rafter member 21 is a member that becomes a base when the roof panel is installed. The vicinity (lower part) of the lower end portion of the rafter member 21 is supported by the lower structural beam B, and the middle portion of the rafter member 21 is supported by the main beam M. The rafter member 21 is supported by the lower structural beam B and the main beam M in a state where the upper part of the rafter member 21 protrudes obliquely upward from the main beam M. The upper end portion of the rafter member 21 is connected to the ridge member 23 or the corner tree 22.

なお、垂木部材２１を配置した際に母屋梁Ｍと交差しない垂木部材２１については、下部近傍が下部構造梁Ｂによって支持され、上端部が隅木２２に固定される。また、屋根が谷状に屈曲する部位においては、垂木部材２１の下部近傍が下部構造梁Ｂと交差しない。このような垂木部材２１については、下端部が谷木２４に固定され、上端部が隅木２２又は棟継部材２３に固定され、途中部が下部構造梁Ｂに支持されている。   As for the rafter member 21 that does not intersect the main beam M when the rafter member 21 is disposed, the vicinity of the lower portion is supported by the lower structural beam B, and the upper end portion is fixed to the corner tree 22. Further, in the portion where the roof is bent in a valley shape, the vicinity of the lower portion of the rafter member 21 does not intersect the lower structural beam B. As for the rafter member 21, the lower end portion is fixed to the valley tree 24, the upper end portion is fixed to the corner tree 22 or the ridge connection member 23, and the middle portion is supported by the lower structural beam B.

垂木部材２１の支持構造について、詳細に説明する。図４に示すように、束Ｔ１等によって支持された母屋梁Ｍ１の上部には、垂木部材２１を受ける垂木受部材Ｋ１が取り付けられている。母屋梁Ｍ１に取り付けられた垂木受部材Ｋ１の上端部には、ボルト及びナットを用いて垂木部材２１の途中部が連結される。下部構造体３の第１２梁Ｂ１２の上部には敷桁Ｃが固定され、敷桁Ｃの上部に垂木部材２１を受ける垂木受部材Ｋ１が取り付けられている。敷桁Ｃに取り付けられた垂木受部材Ｋ１の上端部には、ボルト及びナットを用いて垂木部材２１の下端部近傍の部位が連結される。ここで、敷桁Ｃは、下部構造梁Ｂに沿って、即ち下部構造体３の最上部の外周縁に沿って下部構造梁Ｂの上部に設けられている。   The support structure of the rafter member 21 will be described in detail. As shown in FIG. 4, a rafter receiving member K1 that receives the rafter member 21 is attached to the upper part of the purlin beam M1 supported by the bundle T1 and the like. An intermediate portion of the rafter member 21 is connected to the upper end portion of the rafter receiving member K1 attached to the purlin beam M1 using bolts and nuts. A girder C is fixed to the upper part of the twelfth beam B12 of the lower structure 3, and a rafter receiving member K1 for receiving the rafter member 21 is attached to the upper part of the girder C. A portion near the lower end portion of the rafter member 21 is connected to the upper end portion of the rafter receiving member K1 attached to the spar C using a bolt and a nut. Here, the roof girder C is provided on the upper portion of the lower structural beam B along the lower structural beam B, that is, along the outermost peripheral edge of the uppermost portion of the lower structural body 3.

母屋梁Ｍ１の上部に取り付けられた垂木受部材Ｋ１と垂木部材２１との連結位置は、敷桁Ｃの上部に取り付けられた垂木受部材Ｋ１と垂木部材２１との連結位置よりも高さが高い。これにより、第１２梁Ｂ１２及び母屋梁Ｍ１によって、垂木部材２１が傾斜状に支持される。   The connecting position between the rafter receiving member K1 and the rafter member 21 attached to the upper part of the main beam M1 is higher than the connecting position between the rafter receiving member K1 and the rafter member 21 attached to the upper part of the spar C. . Thereby, the rafter member 21 is supported in an inclined shape by the twelfth beam B12 and the main beam M1.

図５（ａ）及び図５（ｂ）に示すように垂木受部材Ｋ１は、例えば鋼板を折り曲げることによって形成され、立上部Ｋ１ａ及びベース部Ｋ１ｂを有している。ベース部Ｋ１ｂは、母屋梁Ｍ１の上面又は敷桁Ｃの上面に当接される。ベース部Ｋ１ｂには、母屋梁Ｍ１又は敷桁Ｃと連結する際に用いるボルトが通されるボルト孔Ｋ１ｄが設けられている。立上部Ｋ１ａは、ベース部Ｋ１ｂの側部から立ち上がっている。立上部Ｋ１ａには、垂木部材２１と連結する際に用いるボルトが通されるボルト孔Ｋ１ｃが設けられている。   As shown in FIGS. 5A and 5B, the rafter receiving member K1 is formed, for example, by bending a steel plate, and has an upright portion K1a and a base portion K1b. The base portion K1b is brought into contact with the upper surface of the main beam M1 or the upper surface of the spar C. The base portion K1b is provided with a bolt hole K1d through which a bolt used when connecting to the purlin beam M1 or the roof girder C is passed. The rising portion K1a rises from the side portion of the base portion K1b. The upright portion K1a is provided with a bolt hole K1c through which a bolt used when connecting to the rafter member 21 is passed.

図４に示すように、第１２梁Ｂ１２及び母屋梁Ｍ１によって支持された垂木部材２１の上端部が第一棟２ａとなる位置である場合、当該垂木部材２１の上端部と、第一棟２ａを挟んで対向する位置の垂木部材２１の上端部とが、垂木連結部材Ｋ２によって連結される。図２及び図４に示すように、第一棟２ａに沿って並ぶ複数の垂木連結部材Ｋ２は、棟継部材２３によって互いに連結されている。   As shown in FIG. 4, when the upper end portion of the rafter member 21 supported by the twelfth beam B12 and the main beam M1 is a position that becomes the first ridge 2a, the upper end portion of the rafter member 21 and the first ridge 2a The upper ends of the rafter members 21 at positions facing each other are connected by the rafter connecting member K2. As shown in FIGS. 2 and 4, the plurality of rafter connecting members K <b> 2 arranged along the first building 2 a are connected to each other by a building connection member 23.

一方、第１２梁Ｂ１２及び母屋梁Ｍ１によって支持された垂木部材２１の上端部が隅木２２に対応する位置である場合、当該垂木部材２１の上端部と、隅木２２とが連結される。ここで、隅木２２は、図６（ａ）に示すように、断面略Ｃ字状に形成された長尺の２本の鋼材２２ａによって構成されている。２つの鋼材２２ａは、開放側が外側を向くように互いに連結されている。図６（ｂ）に示すように、垂木部材２１の上端は、隅木２２における鋼材２２ａの窪み内（断面略Ｃ字状の内側）に差し込まれる。垂木部材２１の上端と隅木２２とは、略く字状に折り曲げられた連結部材２６を介して連結される。垂木部材２１と連結部材２６との連結、及び、隅木２２と連結部材２６との連結は、ボルト及びナットを用いて互いに連結される。   On the other hand, when the upper end portion of the rafter member 21 supported by the twelfth beam B12 and the main beam M1 is at a position corresponding to the corner tree 22, the upper end portion of the rafter member 21 and the corner tree 22 are connected. Here, as shown in FIG. 6A, the corner tree 22 is composed of two long steel members 22a formed in a substantially C-shaped cross section. The two steel materials 22a are connected to each other so that the open side faces the outside. As shown in FIG. 6 (b), the upper end of the rafter member 21 is inserted into a recess (inside of a substantially C-shaped cross section) of the steel material 22 a in the corner tree 22. The upper end of the rafter member 21 and the corner tree 22 are connected to each other through a connecting member 26 that is bent in a substantially square shape. The connection between the rafter member 21 and the connection member 26 and the connection between the corner tree 22 and the connection member 26 are connected to each other using bolts and nuts.

なお、第１梁Ｂ１等の他の下部構造梁Ｂ及び母屋梁Ｍ６等の母屋梁Ｍが垂木部材２１を支持する構成は、図４を用いて説明した、第１２梁Ｂ１２及び母屋梁Ｍ１が垂木受部材Ｋ１を用いて垂木部材２１を支持する場合と同様の構成となっている。また、第１２梁Ｂ１２及び母屋梁Ｍ１によって支持された垂木部材２１以外の垂木部材２１の端部を、隅木２２及び谷木２４に連結する場合についても、図６（ｂ）を用いて説明した場合と同様に連結することができる。なお、谷木２４は、隅木２２と同様の構成となっている。   The structure in which the lower beam B such as the first beam B1 and the main beam M such as the main beam M6 supports the rafter member 21 is the same as that of the twelfth beam B12 and the main beam M1 described with reference to FIG. The rafter receiving member K1 is used to support the rafter member 21. Moreover, the case where the ends of the rafter members 21 other than the rafter member 21 supported by the twelfth beam B12 and the main beam M1 are connected to the corner tree 22 and the valley tree 24 has been described with reference to FIG. They can be connected in the same way as in the case. The valley 24 has the same configuration as the corner tree 22.

ここで、母屋梁Ｍと下部構造梁Ｂとに架設される垂木部材２１は、野地板２５を配置するために設けられているものである。このため垂木部材２１は、小屋組架構４の構造的要素として寄与するものではない。また、棟継部材２３、下部構造梁Ｂ及び母屋梁Ｍ以外に、隣接する垂木部材２１同士を連結する横材等は設けられていない。対向する垂木部材２１の上端部同士を連結する垂木連結部材Ｋ２、及び、垂木連結部材Ｋ２同士を連結する棟継部材２３は、位置を固定等するための補助材としての機能を有するが、構造的に寄与するものではない。このため、垂木連結部材Ｋ２及び棟継部材２３の部材の断面積は小さいものとなっている。   Here, the rafter member 21 installed on the main beam M and the lower structural beam B is provided for arranging the field board 25. For this reason, the rafter member 21 does not contribute as a structural element of the hut assembly frame 4. Further, in addition to the ridge member 23, the lower structural beam B, and the main beam M, a cross member or the like for connecting adjacent rafter members 21 is not provided. The rafter coupling member K2 that couples the upper ends of the rafter members 21 that face each other, and the bridge member 23 that couples the rafter coupling members K2 have functions as auxiliary materials for fixing the position, etc. It doesn't contribute. For this reason, the cross-sectional areas of the members of the rafter connecting member K2 and the ridge connecting member 23 are small.

次に、束Ｔ１が持出梁Ｍ１０及び母屋梁Ｍ１を支持する構成について説明する。図７（ａ）及び図７（ｂ）に示すように、束Ｔ１の上端部には、梁連結部材５０が溶接等によって取り付けられている。梁連結部材５０は、本体部５１と、リブ５２とを有している。本体部５１は、断面略Ｃ字状に形成されている。リブ５２は、本体部５１における略Ｃ字状の内側に配置され、本体部５１を補強する機能を有している。本体部５１は、束Ｔ１の上部位置から持出梁Ｍ１０側に突出する連結端部５１ａと、母屋梁Ｍ１側に突出する連結端部５１ｂとを有している。   Next, a configuration in which the bundle T1 supports the carry-out beam M10 and the main beam M1 will be described. As shown in FIGS. 7A and 7B, a beam connecting member 50 is attached to the upper end portion of the bundle T1 by welding or the like. The beam connecting member 50 includes a main body 51 and ribs 52. The main body 51 has a substantially C-shaped cross section. The rib 52 is disposed inside the substantially C-shape in the main body 51 and has a function of reinforcing the main body 51. The main body 51 has a connecting end 51a protruding from the upper position of the bundle T1 toward the takeout beam M10 and a connecting end 51b protruding toward the main beam M1.

本体部５１の連結端部５１ａは、持出梁Ｍ１０における断面略Ｃ字状の内側に差し込まれている。連結端部５１ａと持出梁Ｍ１０とは、ボルト及びナットを用いて互いに連結される。持出梁Ｍ１０は、梁連結部材５０から水平状に突出している。また、本体部５１の連結端部５１ｂは、母屋梁Ｍ１における断面略Ｃ字状の内側に差し込まれている。連結端部５１ｂと母屋梁Ｍ１とは、ボルト及びナットを用いて互いに連結される。   The connecting end 51a of the main body 51 is inserted into the inside of the takeout beam M10 having a substantially C-shaped cross section. The connecting end 51a and the takeout beam M10 are connected to each other using bolts and nuts. The takeout beam M10 protrudes horizontally from the beam connecting member 50. Further, the connecting end portion 51b of the main body 51 is inserted inside the main beam M1 having a substantially C-shaped cross section. The connecting end 51b and the main beam M1 are connected to each other using bolts and nuts.

次に、束Ｔ１２が母屋梁Ｍ６を支持する構成について説明する。図８に示すように、束Ｔ１２の上端部には、フランジＴ１２ａが取り付けられている。母屋梁Ｍ６は、束Ｔ１２のフランジＴ１２ａに載置される。母屋梁Ｍ６の下面とフランジＴ１２ａとは、ボルト及びナットを用いて互いに連結される。なお、フランジＴ１２ａには、母屋梁Ｍ６の途中部が載置されている。これにより、母屋梁Ｍ６の南側の端部は束Ｔ１２よりも南側に水平方向に持ち出し状に突出し、母屋梁Ｍ６に持出部Ｍ６ａが形成されている。   Next, a configuration in which the bundle T12 supports the main beam M6 will be described. As shown in FIG. 8, a flange T12a is attached to the upper end of the bundle T12. The purlin beam M6 is placed on the flange T12a of the bundle T12. The lower surface of the purlin beam M6 and the flange T12a are connected to each other using bolts and nuts. In addition, the middle part of the purlin beam M6 is mounted on the flange T12a. As a result, the south end of the purlin beam M6 protrudes in the horizontal direction to the south side of the bundle T12, and a carry-out portion M6a is formed in the purlin beam M6.

次に、持出部Ｍ６ａの先端部と持出梁Ｍ１０との接続について説明する。図３、図７（ａ）及び図８に示すように、持出部Ｍ６ａの南側の先端部と、持出梁Ｍ１０の西側の先端部とは、梁連結部材５５を介して互いに連結されている。梁連結部材５５は、略Ｌ字状に折り曲げられた鋼板である。梁連結部材５５と持出部Ｍ６ａとは、ボルト及びナットを用いて互いに連結されている。梁連結部材５５と持出梁Ｍ１０とは、ボルト及びナットを用いて互いに連結されている。梁連結部材５５を用いて持出部Ｍ６ａと持出梁Ｍ１０とを連結することにより、持出部Ｍ６ａと持出梁Ｍ１０との連結部の直下に束等を設ける必要が無い。   Next, the connection between the leading end of the takeout part M6a and the takeout beam M10 will be described. As shown in FIG. 3, FIG. 7 (a) and FIG. 8, the tip end on the south side of the take-out portion M <b> 6 a and the tip end on the west side of the take-out beam M <b> 10 are connected to each other via a beam connecting member 55. Yes. The beam connecting member 55 is a steel plate bent into a substantially L shape. The beam connecting member 55 and the takeout part M6a are connected to each other using bolts and nuts. The beam connecting member 55 and the takeout beam M10 are connected to each other using bolts and nuts. By connecting the take-out portion M6a and the take-out beam M10 using the beam connecting member 55, it is not necessary to provide a bundle or the like immediately below the connection portion between the take-out portion M6a and the take-out beam M10.

次に、束Ｔ１１が母屋梁Ｍ５及び母屋梁Ｍ６を支持する構成について説明する。図９（ａ）及び図９（ｂ）に示すように、束Ｔ１１の上端部近傍には、母屋梁Ｍ６側（南側）に向けて突出する連結片Ｔ１１ａと、母屋梁Ｍ５側（東側）に向けて突出する連結片Ｔ１１ｂとが設けられている。連結片Ｔ１１ａ及び連結片Ｔ１１ｂは、断面略Ｃ字状に形成されている。連結片Ｔ１１ａは、母屋梁Ｍ６の断面略Ｃ字状の内側に配置されている。連結片Ｔ１１ａと母屋梁Ｍ６とは、ボルト及びナットを用いて互いに連結されている。連結片Ｔ１１ｂは、母屋梁Ｍ５の断面略Ｃ字状の内側に配置されている。連結片Ｔ１１ｂと母屋梁Ｍ５とは、ボルト及びナットを用いて互いに連結されている。   Next, a configuration in which the bundle T11 supports the main beam M5 and the main beam M6 will be described. As shown in FIGS. 9A and 9B, in the vicinity of the upper end of the bundle T11, there are a connecting piece T11a projecting toward the main beam M6 side (south side) and a main beam M5 side (east side). A connecting piece T11b that protrudes is provided. The connecting piece T11a and the connecting piece T11b are formed in a substantially C-shaped cross section. The connecting piece T11a is disposed on the inner side of the main beam M6 having a substantially C-shaped cross section. The connecting piece T11a and the main beam M6 are connected to each other using bolts and nuts. The connecting piece T11b is disposed on the inner side of the main beam M5 having a substantially C-shaped cross section. The connecting piece T11b and the main beam M5 are connected to each other using bolts and nuts.

なお、束Ｔ１、束Ｔ１２及び束Ｔ１１が母屋梁Ｍ１等の母屋梁Ｍを支持する構成について説明したが、他の束についても図７（ａ）、図８、図９を用いて説明した構成と同様の構成によって母屋梁Ｍを支持している。   Note that the configuration in which the bundle T1, the bundle T12, and the bundle T11 support the purlin beam M such as the purlin beam M1 has been described, but the other bundles are also described with reference to FIGS. 7A, 8, and 9. The main beam M is supported by the same configuration as in FIG.

次に、平面視で母屋梁Ｍを見た場合の配置構成について説明する。図１に示すように、母屋梁Ｍを平面視で見た場合、母屋梁Ｍを構成する各梁は、それぞれ、屋根２の第一棟２ａ及び第２棟２ｂによって形成される棟線Ｘ１と屋根２の軒線Ｘ２との間に位置している。また、母屋梁Ｍを構成する各梁は、それぞれ、当該梁を挟み込む棟線Ｘ１及び軒線Ｘ２の少なくともいずれか一方と平行となるように架設されている。   Next, an arrangement configuration when the main beam M is viewed in a plan view will be described. As shown in FIG. 1, when the purlin beam M is viewed in a plan view, each beam constituting the purlin beam M is a ridge line X1 formed by the first ridge 2a and the second ridge 2b of the roof 2, respectively. It is located between the eave line X2 of the roof 2. Further, each beam constituting the purlin beam M is constructed so as to be parallel to at least one of the building line X1 and the eaves line X2 sandwiching the beam.

本実施形態は以上のように構成され、各垂木部材２１は、下端部が下部構造梁Ｂに支持され、途中部が母屋梁Ｍ１〜Ｍ６又は持出梁Ｍ１０に支持されている。このように、垂木部材２１の下端部と途中部とが下部構造梁Ｂと母屋梁Ｍとにそれぞれ支持されるので、垂木部材２１の上端部を強固に固定する必要が無い。このため、垂木部材２１の上端部同士を連結する棟梁を不要とすることができる。なお、垂木連結部材Ｋ２及び棟継部材２３は、構造的に寄与するものではなく、位置を固定等するための補助材であり、構造的に寄与する棟梁とは異なり部材の断面積は小さい。また、垂木部材２１の上端部を支持する束を設ける必要が無い。   The present embodiment is configured as described above, and each rafter member 21 has a lower end portion supported by the lower structural beam B and an intermediate portion supported by the main beams M1 to M6 or the takeout beam M10. Thus, since the lower end part and the middle part of the rafter member 21 are respectively supported by the lower structural beam B and the main beam M, it is not necessary to firmly fix the upper end part of the rafter member 21. For this reason, the ridge beam which connects the upper end parts of the rafter member 21 can be made unnecessary. The rafter connection member K2 and the ridge connection member 23 do not contribute structurally, but are auxiliary materials for fixing the position and the like. Unlike the ridge beam that contributes structurally, the cross-sectional area of the member is small. Further, it is not necessary to provide a bundle that supports the upper end portion of the rafter member 21.

また、母屋梁Ｍを束で支持する構成であるため、母屋梁Ｍの途中部の直下（束と束と間の直下）に母屋梁Ｍを支持する構造部材を設ける必要が無い。これにより、母屋梁Ｍの下方側の空間であって平面視で母屋梁Ｍを挟んで両側に位置する空間の一体性を高めることができる。また、平面視で母屋梁Ｍを挟んで一方の側から他方の側に向かって連続する勾配天井を形成することができる。   In addition, since the main beam M is supported by a bundle, there is no need to provide a structural member that supports the main beam M directly below the middle part of the main beam M (immediately below the bundle). Thereby, it is the space below the main beam M, and it is possible to enhance the integrity of the spaces located on both sides of the main beam M in plan view. Further, it is possible to form a sloped ceiling that is continuous from one side to the other side with the main beam M in plan view.

また、持出梁Ｍ１０によって垂木部材２１を支持することにより、束の本数を増やすことなく母屋梁Ｍによって垂木部材２１を支持することが可能となる。以上のように、この屋根架構構造では、垂木部材２１の下方側の空間を広く確保することが可能となる。   Further, by supporting the rafter member 21 with the carry-out beam M10, it is possible to support the rafter member 21 with the main beam M without increasing the number of bundles. As described above, in this roof frame structure, it is possible to ensure a wide space below the rafter member 21.

小屋組架構４は、束Ｔ１２によって支持される部位から持ち出し状に突出する持出部Ｍ６ａを有する母屋梁Ｍ６を備えている。これにより、持出部Ｍ６ａによって垂木部材２１を支持することができる。即ち、束の本数を増やすことなく、持出部Ｍ６ａによって垂木部材２１を支持することが可能となり、架構が過大となることを抑制することができる。   The shed frame 4 includes a main beam M6 having a take-out portion M6a that protrudes from a portion supported by the bundle T12. Thereby, the rafter member 21 can be supported by the take-out part M6a. That is, the rafter member 21 can be supported by the take-out part M6a without increasing the number of bundles, and an excessively large frame can be suppressed.

持出部Ｍ６ａの先端部と持出梁Ｍ１０とは梁連結部材５５によって連結され、連結部の下方側には束が設けられていない。このように、持出部Ｍ６ａと持出梁Ｍ１０との連結部の下方側の空間に束等が設けられていないので、連結部分の下方側の空間の一体性を高めることができる。また、小屋裏空間の階下の空間から小屋裏空間をつなぐ吹抜けを、持出部Ｍ６ａと持出梁Ｍ１０との連結部の下方側に設けることができる。   The leading end of the take-out portion M6a and the take-out beam M10 are connected by a beam connecting member 55, and no bundle is provided below the connection portion. Thus, since no bundle or the like is provided in the space below the connecting portion between the take-out portion M6a and the take-out beam M10, the integrity of the space below the connecting portion can be improved. Moreover, the colonnade which connects the attic space to the downstairs space of the attic space can be provided on the lower side of the connecting portion between the takeout portion M6a and the takeout beam M10.

以上、本発明の一実施形態について説明したが、本発明は、上記実施形態に限定されるものではない。例えば、垂木部材２１の上端部が、対向する垂木部材２１の上端部又は隅木２２に連結されるものとしたが、例えば、垂木部材２１の上端部が外壁に対向している場合には、垂木部材２１の上端部と外壁とを連結してもよい。   Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the upper end portion of the rafter member 21 is connected to the upper end portion or the corner tree 22 of the opposing rafter member 21, but, for example, when the upper end portion of the rafter member 21 faces the outer wall, You may connect the upper end part of the member 21, and an outer wall.

母屋梁Ｍの西南の角部において、持出部Ｍ６ａに替えて束Ｔ１２に持出梁Ｍ１０と同様の持出梁を連結し、束Ｔ１２に連結された持出梁と束Ｔ１に連結された持出梁Ｍ１０とを梁連結部材５５を用いて連結してもよい。また、母屋梁ＭにＴ字状に連結される部位がある場合、持出梁Ｍ１０のような持出梁、又は、持出部Ｍ６ａのような持出部を母屋梁の途中部に連結してもよい。この場合にも、持出梁又は持出部と母屋梁の途中部との連結部の下方側に束等を設ける必要が無く、連結部の下方側の空間の一体性を高めることができる。   In the southwest corner of the main house beam M, instead of the takeout part M6a, a takeout beam similar to the takeout beam M10 is connected to the bundle T12, and is connected to the takeout beam connected to the bundle T12 and the bundle T1. The takeout beam M <b> 10 may be connected using the beam connecting member 55. In addition, when the main beam M has a portion connected in a T-shape, a take-out beam such as the take-out beam M10 or a take-out part such as the take-out part M6a is connected to the middle part of the main beam. May be. Also in this case, it is not necessary to provide a bundle or the like on the lower side of the take-out beam or the connection portion between the take-out portion and the middle portion of the main beam, and the integrity of the space below the connection portion can be improved.

持出梁Ｍ１０は、図７（ａ）に示すように、母屋梁Ｍ１から梁連結部材５０を介して水平状に突出するものとしたが、束Ｔ１から水平状に持出梁Ｍ１０を突出させてもよい。また、実施形態に係る建物１の屋根２は、寄棟屋根としたが、切妻屋根であっても上記の屋根架構構造を適用することができる。   As shown in FIG. 7A, the takeout beam M10 protrudes horizontally from the main beam M1 via the beam connecting member 50. However, the takeout beam M10 protrudes horizontally from the bundle T1. May be. Moreover, although the roof 2 of the building 1 according to the embodiment is a dormitory roof, the above-mentioned roof frame structure can be applied even if it is a gable roof.

母屋梁Ｍは環状に連結されているものとしたが、例えば、環状の母屋梁Ｍから持出梁Ｍ１０のような持出梁、又は、持出部Ｍ６ａのような持出部が突出していてもよい。また、母屋梁Ｍは環状に連結されていなくてもよい。   The main beam M is assumed to be connected in a ring shape. For example, a take-out beam such as a take-out beam M10 or a take-out part such as a take-out part M6a protrudes from the ring-shaped main beam M. Also good. Further, the main beam M may not be connected in a ring shape.

１…建物、２…屋根、３…下部構造体、４…小屋組架構、２１…垂木部材、Ｂ…下部構造梁、Ｍ，Ｍ１〜Ｍ６…母屋梁、Ｍ６ａ…持出部、Ｍ１０…持出梁、Ｔ１〜Ｔ１２…束。   DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Roof, 3 ... Lower structure, 4 ... Hut frame, 21 ... Rafter member, B ... Lower structural beam, M, M1-M6 ... Main beam, M6a ... Take-out part, M10 ... Take-out Beams, T1-T12 ... bundles.

Claims (4)

下部構造体の上部に設けられる小屋組架構によって複数の垂木部材を傾斜状に支持して寄棟屋根又は切妻屋根の骨組みを形成する屋根架構構造であって、
前記小屋組架構は、
水平状に設けられる母屋梁と、
前記下部構造体から立ち上がって前記母屋梁を水平状に支持する複数の束と、
前記母屋梁又は前記束から水平状に突出し、先端部では前記下部構造体から立ち上がる部材により支持されていない持出梁と、を備え、
前記束の前記下部構造体からの突出高さは、前記垂木部材の上端部によって形成される棟高さ以下の高さに設定され、
前記持出梁は前記垂木部材を支持する、屋根架構構造。 A roof frame structure in which a plurality of rafter members are supported in an inclined manner by a hut frame frame provided at an upper part of the lower structure to form a frame of a dormitory roof or a gable roof,
The hut frame is
A horizontal main beam,
A plurality of bundles that stand up from the lower structure and support the main beam horizontally;
The projecting horizontally from the main house beam or said beams, the tip and a lifting second beams which are not supported by the members rising from the lower structure,
The protruding height of the bundle from the lower structure is set to a height equal to or lower than the ridge height formed by the upper end portion of the rafter member,
The take-out beam supports the rafter member and has a roof frame structure. 前記束は、前記母屋梁の下端部を支持し、
前記母屋梁は、前記束によって支持される部位から持ち出し状に突出する持出部を有する、請求項１に記載の屋根架構構造。 The bundle supports the lower end of the main beam,
The roof frame structure according to claim 1, wherein the main beam has a take-out portion that protrudes from a portion supported by the bundle. 互に隣接する前記持出梁の先端部同士が連結、又は、前記持出梁の先端部と前記母屋梁の途中部とが連結される、請求項１又は２に記載の屋根架構構造。 The roof frame structure according to claim 1 or 2, wherein tip portions of the take-out beams adjacent to each other are connected to each other, or a tip portion of the take-out beam and a middle portion of the main beam are connected to each other . 互に隣接する前記持出部の先端部同士が連結、前記持出部の先端部と前記母屋梁の途中部とが連結、又は、前記持出梁の先端部と前記持出部の先端部とが連結される、請求項２に記載の屋根架構構造。 Mutually connecting the distal ends of the lifting out section adjacent the middle portion and is connected with the previous SL lifting out of the distal end the purlins beam, or the tip of the tip portion of the lifting second beams the lifting out section The roof frame structure according to claim 2 , wherein the parts are connected to each other.
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