WO2020189385A1 - Roof structure - Google Patents

Roof structure Download PDF

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Publication number
WO2020189385A1
WO2020189385A1 PCT/JP2020/010085 JP2020010085W WO2020189385A1 WO 2020189385 A1 WO2020189385 A1 WO 2020189385A1 JP 2020010085 W JP2020010085 W JP 2020010085W WO 2020189385 A1 WO2020189385 A1 WO 2020189385A1
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Prior art keywords
rafter
rafter member
roof structure
roof
present
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PCT/JP2020/010085
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French (fr)
Japanese (ja)
Inventor
朋幸 長津
祐吾 太田
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日本製鉄株式会社
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Publication of WO2020189385A1 publication Critical patent/WO2020189385A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/04—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs supported by horizontal beams or the equivalent resting on the walls

Definitions

  • the present invention relates to a roof structure having a rafter member and a roof base.
  • Examples of this type of roof structure that has been conventionally used include the roof structure shown in Patent Document 1 and the like below. That is, in the conventional roof structure, the roof base is installed on a plurality of rafter members arranged at intervals from each other. As the rafter member, C-shaped steel having an open cross section is used.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide a roof structure capable of ensuring strength and improving workability even if the rafter members are made lighter by thinning. Is.
  • the roof structure according to the present invention is a square metal pipe comprising a plurality of rafter members arranged at intervals from each other and a plate-shaped roof base installed on the rafter members, and the rafter members have a closed cross section. is there.
  • the rafter member is a square metal pipe having a closed cross section, strength can be ensured and workability can be improved even if the rafter member is made thinner and lighter.
  • FIG. 1 It is a perspective view which shows the roof structure by embodiment of this invention. It is a perspective view which shows the rafter member of FIG. It is a front view which shows the rafter member of FIG.
  • FIG. 1 is a perspective view showing a roof structure according to an embodiment of the present invention.
  • the roof structure of the present embodiment includes an eaves girder 1, a building tree 2, a plurality of purlins 3, a plurality of rafter members 4, and a plurality of roof bases 5.
  • the eaves girder 1, purlin 2 and purlin 3 are members extending in the horizontal direction.
  • the eaves girder 1 is arranged at the eaves of the roof, the purlin 2 is arranged at the top of the roof, and the purlin 3 is arranged at equal intervals between the eaves girder 1 and the purlin 2.
  • the rafter member 4 is a member extending in the flow direction of the roof, and is hung on the eaves girder 1, the ridge tree 2, and the purlin 3. Further, the rafter members 4 are arranged at equal intervals in the eaves direction of the roof.
  • the roof base 5 is a plate-shaped member and is installed on the rafter member 4. As the roof base 5, plywood made of wood can be used. The roof base 5 is sometimes called a field board. The roof base 5 of the present embodiment is tied to the rafter member 4 by a screw 6 struck from above the roof base 5 toward the rafter member 4. Although not shown, a tarpaulin and a roofing material are arranged on the roof base 5.
  • roofing materials include ceramic roofing materials such as roof tiles and slate, and metal roofing materials.
  • FIG. 2 is a perspective view showing the rafter member 4 of FIG. 1
  • FIG. 3 is a front view showing the rafter member 4 of FIG.
  • the roof base 5 of FIG. 1 is also shown.
  • the rafter member 4 of the present embodiment is composed of a square metal pipe having a closed cross section. More specifically, the rafter member 4 of the present embodiment is composed of a rectangular metal tube having a rectangular cross section having a long wall 40 and a short wall 41. The long wall 40 and the short wall 41 form a wall portion of the rafter member 4. As shown in FIG. 3, the rafter member 4 of the present embodiment is adapted so that the long wall 40 extends in the vertical direction and the roof base 5 of FIG. 1 is placed on the short wall 41.
  • the cross-sectional shape of the square metal pipe is arbitrary, and may be another shape such as a square or a trapezoid.
  • a cold-rolled steel plate, a stainless steel plate, an aluminum plate, or a surface-treated material thereof can be used as the material of the square metal tube.
  • Surface treatments include plating and painting.
  • the plating includes Zn—Al—Mg alloy plating.
  • the wall thickness of the square metal tube can be about 0.8 mm.
  • the short wall 41 is provided with a rib 43 extending in the longitudinal direction of the rafter member 4.
  • the rib 43 of the present embodiment has a plurality of recesses arranged at intervals in the width direction of the short wall 41.
  • the plurality of recesses of the present embodiment form first and second recess groups 431 and 432.
  • the first and second recess groups 431 and 432 are arranged on both sides of the flat plate portion 433 formed in the central portion in the width direction of the short wall 41.
  • the rib 43 may have a plurality of convex portions arranged at intervals in the width direction of the short wall 41.
  • the screw 6 that binds the roof base 5 to the rafter member 4 penetrates the short wall 41 and enters the inside of the rafter member 4.
  • a punching burr 44 is formed so as to surround the screw 6. The punching burr 44 is entangled with the screw 6 and hinders the pulling out of the screw 6.
  • the rafter member 4 is provided with a crimped portion 45 in which both side portions of the metal plate (material metal plate) constituting the rafter member 4 are crimped.
  • both side portions of the material metal plate are not joined by welding.
  • a surface-treated metal plate is used as the material metal plate, if both sides of the material metal plate are welded, the surface treatment of the joint portion is removed. When the surface treatment is removed, corrosion is likely to occur from the joint. In addition, it will be necessary to repair the surface treatment of the joint. By joining both sides of the material metal plate by caulking, it is possible to avoid the occurrence of such a problem.
  • the crimped portion 45 of the present embodiment is composed of a goby-folded portion in which both side portions of the material metal plate are goby-folded.
  • the rafter member 4 is a square metal pipe having a closed cross section, strength can be ensured and workability can be improved even if the rafter member 4 is made thinner and lighter.
  • the rib 43 extending in the longitudinal direction of the rafter member 4 is provided on the wall portion of the rafter member 4, an external force applied to the rafter member 4 along the direction orthogonal to the longitudinal direction of the rafter member 4 is provided.
  • the rigidity of the rafter member 4 with respect to the relative can be improved. For example, in a snowy area, it is necessary to shorten the installation interval of rafters in order to cope with the weight of snow, but if the present invention is applied, it is possible to cope with the specifications of a general area.
  • the punching burr 44 is formed inside the rafter member 4, the punching burr 44 can be entangled with the screw 6 to prevent the screw 6 from being pulled out.
  • the rafter member 4 is provided with the crimped portions 45 in which both side portions of the metal plate constituting the rafter member 4 are crimped, the occurrence of a problem due to the removal of the surface treatment of the material metal plate is avoided. can do. That is, it is possible to prevent corrosion from being likely to occur from the joint from which the surface treatment has been removed. In addition, it is possible to avoid the need to repair the surface treatment of the joint portion.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

This roof structure comprises a plurality of rafter members 4 disposed with gaps therebetween and a flat roof bed 5 disposed on the rafter members 4, the rafter members 4 being rectangular metal pipes having closed cross-sections.

Description

屋根構造Roof structure
　本発明は、垂木部材及び屋根下地を有する屋根構造に関する。 The present invention relates to a roof structure having a rafter member and a roof base.
　従来用いられていたこの種の屋根構造としては、例えば下記の特許文献１等に示されている屋根構造を挙げることができる。すなわち、従来の屋根構造では、互いに間隔をおいて配置された複数の垂木部材の上に屋根下地が設置されている。垂木部材として、開放断面を有するＣ形鋼が使用されている。 Examples of this type of roof structure that has been conventionally used include the roof structure shown in Patent Document 1 and the like below. That is, in the conventional roof structure, the roof base is installed on a plurality of rafter members arranged at intervals from each other. As the rafter member, C-shaped steel having an open cross section is used.
特開２００５－０９７９２１号公報Japanese Unexamined Patent Publication No. 2005-097921
　屋根構造の施工時には、数多くの垂木部材を建物の上部に持ち上げる必要がある。垂木部材の重量が軽いほど施工性が良くなる。上記のような従来の屋根構造では、開放断面を有するＣ形鋼が垂木部材として使用されているので、薄肉化により軽量化すると強度不足となってしまう。 When constructing the roof structure, it is necessary to lift a large number of rafter members to the top of the building. The lighter the weight of the rafter member, the better the workability. In the conventional roof structure as described above, since C-shaped steel having an open cross section is used as a rafter member, the strength becomes insufficient if the weight is reduced by thinning.
　本発明は、上記のような課題を解決するためになされたものであり、その目的は、垂木部材を薄肉化により軽量化しても強度を確保でき、施工性を向上できる屋根構造を提供することである。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a roof structure capable of ensuring strength and improving workability even if the rafter members are made lighter by thinning. Is.
　本発明に係る屋根構造は、互いに間隔をおいて配置された複数の垂木部材と、垂木部材の上に設置された板状の屋根下地とを備え、垂木部材が閉鎖断面を有する角形金属管である。 The roof structure according to the present invention is a square metal pipe comprising a plurality of rafter members arranged at intervals from each other and a plate-shaped roof base installed on the rafter members, and the rafter members have a closed cross section. is there.
　本発明の屋根構造によれば、垂木部材が閉鎖断面を有する角形金属管であるので、垂木部材を薄肉化して軽量化しても強度を確保でき、施工性を向上できる。 According to the roof structure of the present invention, since the rafter member is a square metal pipe having a closed cross section, strength can be ensured and workability can be improved even if the rafter member is made thinner and lighter.
本発明の実施の形態による屋根構造を示す斜視図である。It is a perspective view which shows the roof structure by embodiment of this invention. 図１の垂木部材を示す斜視図である。It is a perspective view which shows the rafter member of FIG. 図２の垂木部材を示す正面図である。It is a front view which shows the rafter member of FIG.
　以下、本発明を実施するための形態について、図面を参照して説明する。本発明は各実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、各実施形態に開示されている複数の構成要素の適宜な組み合わせにより、種々の発明を形成できる。例えば、実施の形態に示される全構成要素からいくつかの構成要素を削除してもよい。さらに、異なる実施形態の構成要素を適宜組み合わせてもよい。 Hereinafter, a mode for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to each embodiment, and the components can be modified and embodied without departing from the gist thereof. In addition, various inventions can be formed by appropriately combining the plurality of components disclosed in each embodiment. For example, some components may be removed from all the components shown in the embodiments. Furthermore, the components of different embodiments may be combined as appropriate.
　図１は、本発明の実施の形態による屋根構造を示す斜視図である。本実施の形態の屋根構造には、軒桁１、棟木２、複数の母屋３、複数の垂木部材４及び複数の屋根下地５を含んでいる。 FIG. 1 is a perspective view showing a roof structure according to an embodiment of the present invention. The roof structure of the present embodiment includes an eaves girder 1, a building tree 2, a plurality of purlins 3, a plurality of rafter members 4, and a plurality of roof bases 5.
　軒桁１、棟木２及び母屋３は、水平方向に延在された部材である。軒桁１は屋根の軒先に配置され、棟木２は屋根の頂部に配置され、母屋３は軒桁１と棟木２との間に等間隔に配置されている。 The eaves girder 1, purlin 2 and purlin 3 are members extending in the horizontal direction. The eaves girder 1 is arranged at the eaves of the roof, the purlin 2 is arranged at the top of the roof, and the purlin 3 is arranged at equal intervals between the eaves girder 1 and the purlin 2.
　垂木部材４は、屋根の流れ方向に延在された部材であり、軒桁１、棟木２及び母屋３に架けられている。また、垂木部材４は、屋根の軒方向に等間隔に配置されている。 The rafter member 4 is a member extending in the flow direction of the roof, and is hung on the eaves girder 1, the ridge tree 2, and the purlin 3. Further, the rafter members 4 are arranged at equal intervals in the eaves direction of the roof.
　屋根下地５は、板状の部材であり、垂木部材４の上に設置されている。屋根下地５としては、木材からなる合板を用いることができる。屋根下地５は野地板と呼ぶこともある。本実施の形態の屋根下地５は、屋根下地５の上方から垂木部材４に向けて打たれたビス６により垂木部材４に緊結されている。図示はしないが、屋根下地５の上には、防水シート及び屋根材が配置される。屋根材には、瓦若しくはスレート等の窯業系屋根材及び金属屋根材が含まれる。 The roof base 5 is a plate-shaped member and is installed on the rafter member 4. As the roof base 5, plywood made of wood can be used. The roof base 5 is sometimes called a field board. The roof base 5 of the present embodiment is tied to the rafter member 4 by a screw 6 struck from above the roof base 5 toward the rafter member 4. Although not shown, a tarpaulin and a roofing material are arranged on the roof base 5. Roofing materials include ceramic roofing materials such as roof tiles and slate, and metal roofing materials.
　次に、図２は図１の垂木部材４を示す斜視図であり、図３は図２の垂木部材４を示す正面図である。なお、図３で、図１の屋根下地５を合わせて示している。本実施の形態の垂木部材４は、閉鎖断面を有する角形金属管によって構成されている。より具体的には、本実施の形態の垂木部材４は、長壁４０及び短壁４１を有する断面長方形状の角形金属管によって構成されている。長壁４０及び短壁４１は、垂木部材４の壁部を構成する。図３に示すように、本実施の形態の垂木部材４は、長壁４０の延在方向を上下方向とし、短壁４１の上に図１の屋根下地５が載せられるように適合されている。但し、角形金属管の断面形状は、任意であり、例えば正方形又は台形等の他の形状であってもよい。 Next, FIG. 2 is a perspective view showing the rafter member 4 of FIG. 1, and FIG. 3 is a front view showing the rafter member 4 of FIG. In addition, in FIG. 3, the roof base 5 of FIG. 1 is also shown. The rafter member 4 of the present embodiment is composed of a square metal pipe having a closed cross section. More specifically, the rafter member 4 of the present embodiment is composed of a rectangular metal tube having a rectangular cross section having a long wall 40 and a short wall 41. The long wall 40 and the short wall 41 form a wall portion of the rafter member 4. As shown in FIG. 3, the rafter member 4 of the present embodiment is adapted so that the long wall 40 extends in the vertical direction and the roof base 5 of FIG. 1 is placed on the short wall 41. However, the cross-sectional shape of the square metal pipe is arbitrary, and may be another shape such as a square or a trapezoid.
　角形金属管の素材としては、冷延鋼板、ステンレス鋼板若しくはアルミニウム板又はこれらに表面処理を施したものを使用することができる。表面処理には、めっき及び塗装が含まれる。特に、めっきには、Ｚｎ－Ａｌ－Ｍｇ合金めっきが含まれる。角形金属管の肉厚は、０．８ｍｍ程度とすることができる。 As the material of the square metal tube, a cold-rolled steel plate, a stainless steel plate, an aluminum plate, or a surface-treated material thereof can be used. Surface treatments include plating and painting. In particular, the plating includes Zn—Al—Mg alloy plating. The wall thickness of the square metal tube can be about 0.8 mm.
　短壁４１には、垂木部材４の長手方向に延在されたリブ４３が設けられている。このようなリブ４３が短壁４１に設けられていることで、垂木部材４の長手方向に直交する方向に沿って垂木部材４に加えられる外力に対する垂木部材４の剛性を向上できる。本実施の形態のリブ４３は、短壁４１の幅方向に間隔を置いて配置された複数の凹部を有している。本実施の形態の複数の凹部は、第１及び第２凹部群４３１，４３２を形成している。第１及び第２凹部群４３１，４３２は、短壁４１の幅方向に係る中央部に形成された平板部４３３の両側に配置されている。なお、リブ４３は、短壁４１の幅方向に間隔を置いて配置された複数の凸部を有していてもよい。 The short wall 41 is provided with a rib 43 extending in the longitudinal direction of the rafter member 4. By providing such a rib 43 on the short wall 41, the rigidity of the rafter member 4 with respect to an external force applied to the rafter member 4 along the direction orthogonal to the longitudinal direction of the rafter member 4 can be improved. The rib 43 of the present embodiment has a plurality of recesses arranged at intervals in the width direction of the short wall 41. The plurality of recesses of the present embodiment form first and second recess groups 431 and 432. The first and second recess groups 431 and 432 are arranged on both sides of the flat plate portion 433 formed in the central portion in the width direction of the short wall 41. The rib 43 may have a plurality of convex portions arranged at intervals in the width direction of the short wall 41.
　図３に示しているように、屋根下地５を垂木部材４に緊結するビス６は、短壁４１を貫通して垂木部材４の内側に進入している。垂木部材４の内側には、ビス６を取り囲むように打ち抜きバリ４４が形成されている。打ち抜きバリ４４は、ビス６に絡みつきビス６の引き抜きを阻害する。 As shown in FIG. 3, the screw 6 that binds the roof base 5 to the rafter member 4 penetrates the short wall 41 and enters the inside of the rafter member 4. Inside the rafter member 4, a punching burr 44 is formed so as to surround the screw 6. The punching burr 44 is entangled with the screw 6 and hinders the pulling out of the screw 6.
　垂木部材４には、垂木部材４を構成する金属板（素材金属板）の両側部がカシメられたカシメ部４５が設けられている。換言すると、本実施の形態の垂木部材４では、素材金属板の両側部を溶接により接合していない。素材金属板として表面処理を施した金属板を用いる場合、素材金属板の両側部を溶接すると、接合部の表面処理が除去されてしまう。表面処理が除去されると接合部から腐食が生じやすくなる。また、接合部に対して表面処理の補修を行う必要が生じる。素材金属板の両側部をカシメにより接合することで、このような問題の発生を回避することができる。本実施の形態のカシメ部４５は、素材金属板の両側部がハゼ折りされたハゼ折り部により構成されている。 The rafter member 4 is provided with a crimped portion 45 in which both side portions of the metal plate (material metal plate) constituting the rafter member 4 are crimped. In other words, in the rafter member 4 of the present embodiment, both side portions of the material metal plate are not joined by welding. When a surface-treated metal plate is used as the material metal plate, if both sides of the material metal plate are welded, the surface treatment of the joint portion is removed. When the surface treatment is removed, corrosion is likely to occur from the joint. In addition, it will be necessary to repair the surface treatment of the joint. By joining both sides of the material metal plate by caulking, it is possible to avoid the occurrence of such a problem. The crimped portion 45 of the present embodiment is composed of a goby-folded portion in which both side portions of the material metal plate are goby-folded.
　このような屋根構造では、垂木部材４が閉鎖断面を有する角形金属管であるので、垂木部材４を薄肉化して軽量化しても強度を確保でき、施工性を向上できる。 In such a roof structure, since the rafter member 4 is a square metal pipe having a closed cross section, strength can be ensured and workability can be improved even if the rafter member 4 is made thinner and lighter.
　また、垂木部材４の壁部には、垂木部材４の長手方向に延在するリブ４３が設けられているので、垂木部材４の長手方向に直交する方向に沿って垂木部材４に加えられる外力に対する垂木部材４の剛性を向上できる。たとえば、積雪地域においては、雪の重さに対応するため垂木の設置間隔を短くする必要があるが、本発明を適用すれば一般地域の仕様で対応することが可能である。 Further, since the rib 43 extending in the longitudinal direction of the rafter member 4 is provided on the wall portion of the rafter member 4, an external force applied to the rafter member 4 along the direction orthogonal to the longitudinal direction of the rafter member 4 is provided. The rigidity of the rafter member 4 with respect to the relative can be improved. For example, in a snowy area, it is necessary to shorten the installation interval of rafters in order to cope with the weight of snow, but if the present invention is applied, it is possible to cope with the specifications of a general area.
　また、垂木部材４の内部に打ち抜きバリ４４が形成されているので、打ち抜きバリ４４がビス６に絡みつくことによりビス６の引き抜きを阻害できる。 Further, since the punching burr 44 is formed inside the rafter member 4, the punching burr 44 can be entangled with the screw 6 to prevent the screw 6 from being pulled out.
　また、垂木部材４には、垂木部材４を構成する金属板の両側部がカシメられたカシメ部４５が設けられているので、素材金属板の表面処理が除去されることによる問題の発生を回避することができる。すなわち、表面処理が除去された接合部から腐食が生じやすくなることを回避できる。また、接合部に対して表面処理の補修を行う必要が生じることを回避できる。 Further, since the rafter member 4 is provided with the crimped portions 45 in which both side portions of the metal plate constituting the rafter member 4 are crimped, the occurrence of a problem due to the removal of the surface treatment of the material metal plate is avoided. can do. That is, it is possible to prevent corrosion from being likely to occur from the joint from which the surface treatment has been removed. In addition, it is possible to avoid the need to repair the surface treatment of the joint portion.

Claims (4)

  1. 　互いに間隔をおいて配置された複数の垂木部材と、
    　垂木部材の上に設置された板状の屋根下地と
    　を備え、
    　前記垂木部材が閉鎖断面を有する角形金属管である、
    　屋根構造。     With multiple rafter members placed at intervals from each other,
    With a plate-shaped roof base installed on the rafter members,
    The rafter member is a square metal tube having a closed cross section.
    Roof structure.
  2. 　前記垂木部材の壁部には、前記垂木部材の長手方向に延在されたリブが設けられている、
    　請求項１記載の屋根構造。     The wall portion of the rafter member is provided with ribs extending in the longitudinal direction of the rafter member.
    The roof structure according to claim 1.
  3. 　前記屋根下地と前記垂木部材とがビスで緊結されており、
    　前記垂木部材の内部には打ち抜きバリが形成されている、
    　請求項１又は請求項２に記載の屋根構造。     The roof base and the rafter member are tied together with screws.
    A punching burr is formed inside the rafter member.
    The roof structure according to claim 1 or 2.
  4. 　前記垂木部材には、前記垂木部材を構成する金属板の両側部がカシメられたカシメ部が設けられている、
    　請求項１から請求項３までのいずれか１項に記載の屋根構造。     The rafter member is provided with a crimped portion in which both side portions of the metal plate constituting the rafter member are crimped.
    The roof structure according to any one of claims 1 to 3.
PCT/JP2020/010085 2019-03-20 2020-03-09 Roof structure WO2020189385A1 (en)

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JP2019-053779 2019-03-20
JP2019053779A JP2020153163A (en) 2019-03-20 2019-03-20 Roof structure

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KR20230047469A (en) 2020-09-11 2023-04-07 미쯔비시 케미컬 주식회사 Resin composition, cured product and manufacturing method thereof, and laminate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08218559A (en) * 1995-02-15 1996-08-27 Ig Tech Res Inc Roof repair structure
JP2006328942A (en) * 2005-04-28 2006-12-07 Nippon Steel Corp Buckling reinforcing structure of box-shaped cross-sectional thin plate member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08218559A (en) * 1995-02-15 1996-08-27 Ig Tech Res Inc Roof repair structure
JP2006328942A (en) * 2005-04-28 2006-12-07 Nippon Steel Corp Buckling reinforcing structure of box-shaped cross-sectional thin plate member

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