JP6095188B1

JP6095188B1 - Building ceiling structure and ceiling construction method

Info

Publication number: JP6095188B1
Application number: JP2016145381A
Authority: JP
Inventors: 清水　康弘; 康弘清水
Original assignee: コンフォートテック株式会社
Priority date: 2016-07-25
Filing date: 2016-07-25
Publication date: 2017-03-15
Anticipated expiration: 2036-07-25
Also published as: JP2018016942A

Abstract

【課題】Ｈ形鋼からなる天井梁（天井構造材）に対する天井母屋部材の固定作業と、天井母屋部材による天井材の支持作業を、労力を削減して簡単に行うことができる建物の天井構造を提供する。【解決手段】Ｈ形鋼梁４に、天井母屋部材５が母屋固定装置６を介して固定され、天井母屋部材の下面に、水平方向に敷設された複数の天井材２の端部が天井支持装置７を介して支持されている。母屋固定装置は、Ｈ形鋼梁の下部フランジ１０をフランジ上面側及びフランジ下面側から挟持することでＨ形鋼梁に天井母屋部材を固定する挟持部を備えている。天井支持装置は、水平方向に隣接している２枚の天井材の端部同士の上面が当接する押え部材３１と、天井母屋部材に着脱自在に連結されて２枚の前記天井材の端部同士の下面を受ける保持部材３２，３３と、を備えている。【選択図】図３[PROBLEMS] To fix a ceiling purlin member to a ceiling beam (ceiling structural member) made of H-shaped steel and to support the ceiling member by the ceiling purlin member with reduced labor and to easily perform the ceiling structure of the building. I will provide a. A ceiling purlin member 5 is fixed to an H-shaped steel beam 4 via a purlin fixing device 6, and ends of a plurality of ceiling members 2 laid in the horizontal direction are supported on the lower surface of the ceiling purlin member. It is supported via the device 7. The purlin fixing device includes a clamping portion that fixes the ceiling purlin member to the H-shaped steel beam by clamping the lower flange 10 of the H-shaped steel beam from the flange upper surface side and the flange lower surface side. The ceiling support device includes a pressing member 31 in which the upper surfaces of the end portions of two ceiling members adjacent in the horizontal direction are in contact with each other, and an end portion of the two ceiling members that are detachably connected to the ceiling purlin member. Holding members 32 and 33 for receiving the lower surfaces of each other. [Selection] Figure 3

Description

本発明は、建物の天井構造及びその天井施工方法に関する。 The present invention relates to a ceiling structure of a building and a ceiling construction method thereof.

オフィスビル、集合住宅、学校、病院、生産施設、体育館、プール、空港ターミナルビル、劇場、シネコン等の建物は、高さが６メートルを超えた天井部を備えている。
これらの建物の天井部は、天井材を屋根構造材から吊り部材で吊って設置する吊り天井構造が多用されている。
天井部の高さが６メートルを超える吊り天井は、建築基準法施行令では特定天井として定義されている。近年、建築基準法施行令の一部が改正され、特定天井及び特定天井の構造耐力上安全な構造方法が定められた（非特許文献１）。その内容は、震災時の天井板の脱落により重大な危険が生じる可能性があるとして、構造耐力のさらなる強化などを規定したものである。 Buildings such as office buildings, housing complexes, schools, hospitals, production facilities, gymnasiums, pools, airport terminal buildings, theaters, cinecons, etc. have ceilings that exceed 6 meters in height.
The ceiling part of these buildings often uses a suspended ceiling structure in which a ceiling material is suspended from a roof structure material by a suspension member.
Suspended ceilings with a ceiling height of more than 6 meters are defined as specific ceilings in the Building Standard Law Enforcement Ordinance. In recent years, a part of the Building Standard Law Enforcement Ordinance has been amended to define a specific ceiling and a safe structural method for the structural strength of the specific ceiling (Non-Patent Document 1). The content stipulates the further strengthening of the structural strength because there is a possibility that a serious danger may occur due to the drop of the ceiling board at the time of the earthquake disaster.

屋根構造部材と天井材との間の天井裏は、空調設備を設置するために広い空間を必要とするが、上述した吊り天井構造は、天井裏に多数の吊り部材が連結しているので、広い天井裏空間を確保することが難しい。
一方、天井材を天井梁（天井構造材）に取り付けることで、吊り部材が存在しない広い天井裏空間を確保し、空調設備の設置空間を設けることができる天井構造がある（例えば、特許文献１）。
特許文献１の天井構造は、Ｃ型鋼からなる天井梁（天井構造材）に直交した状態で下地バーを保持し、且つ天井構造材に固定されている接続部材と、下地バーの下部に固定され、天井材の端部を支持しているボード支持材と、を備えた構造である。 The back of the ceiling between the roof structural member and the ceiling material requires a large space for installing the air conditioning equipment, but the above-described suspended ceiling structure has many suspension members connected to the back of the ceiling. It is difficult to secure a large ceiling space.
On the other hand, there is a ceiling structure in which a ceiling space can be provided by installing a ceiling material on a ceiling beam (ceiling structure material) to secure a wide ceiling space without a suspension member and to provide an installation space for air conditioning equipment (for example, Patent Document 1). ).
The ceiling structure of Patent Document 1 holds a base bar in a state orthogonal to a ceiling beam (ceiling structure material) made of C-shaped steel, and is fixed to a connection member fixed to the ceiling structure material and a lower portion of the base bar. And a board support member that supports the end of the ceiling member.

国土交通省建築基準法施行令の一部を改正する政令について（平成２６年４月施行）３．建築物の天井脱落対策関連告示（１）特定天井及び特定天井の構造耐力上安全な構造方法を定める件（平成２５年国土交通省告示第７７１号）［平成26年9月10日検索］インターネット〈URL：http://www.mlit.go.jp/common/001009484.pdf〉2. Decree to amend a part of the Building Standards Law Enforcement Ordinance of the Ministry of Land, Infrastructure, Transport and Tourism (enforced in April 2014) Notices related to measures against ceiling dropout of buildings (1) Determining safe construction methods for specific ceilings and the structural strength of specific ceilings (2013 Ministry of Land, Infrastructure, Transport and Tourism Notification No. 771) [searched on September 10, 2014] Internet <URL: http://www.mlit.go.jp/common/001009484.pdf>

特開２０１６−８４７９号公報Japanese Patent Laid-Open No. 2006-8479

特許文献１の天井構造は、接続部材を下地バー及びＣ型鋼からなる天井梁に固定する固定手段として、全て固定部材（ビス）を使用しなければならず、接続部材の固定作業に多くの時間と労力が必要となる。また、天井材の端部を仮支持した状態で、ボード支持材を下地バーの下部にビスで固定しなければならないので、ボード支持材の固定作業にも多くの時間と労力が必要となる。
そこで、本発明は、Ｈ形鋼からなる天井梁（天井構造材）に対する天井母屋部材の固定作業と、天井母屋部材による天井材の支持作業を、労力を削減して簡単に行うことができるとともに、天井裏に空調設備のための広い空間を設けることができる建物の天井構造及びその天井施工方法を提供することを目的としている。 In the ceiling structure of Patent Document 1, all fixing members (screws) must be used as fixing means for fixing the connecting member to the base bar and the ceiling beam made of C-shaped steel, and much time is required for fixing the connecting member. And labor is required. In addition, since the board support member must be fixed to the lower part of the base bar with screws in a state in which the end portion of the ceiling member is temporarily supported, much time and labor are required for fixing the board support member.
Therefore, the present invention can easily perform the work of fixing the ceiling purlin member to the ceiling beam (ceiling structural member) made of H-shaped steel and the work of supporting the ceiling material by the ceiling purlin member with reduced labor. An object of the present invention is to provide a ceiling structure of a building that can provide a large space for air conditioning equipment on the back of the ceiling, and a ceiling construction method thereof.

上記目的を達成するために、本発明の一態様に係る建物の天井構造は、ウェブが上下方向に延在し、ウェブの上部に上部フランジ、ウェブの下部に下部フランジが形成されて水平方向に延在するＨ形鋼梁に、天井母屋部材が母屋固定装置を介して固定され、天井母屋部材の下面に、水平方向に敷設された複数の天井材の端部が天井支持装置を介して支持されてなる建物の天井構造であって、母屋固定装置は、下部フランジをフランジ上面側及びフランジ下面側から挟持することでＨ形鋼梁に天井母屋部材を固定する挟持部を備えているとともに、天井支持装置は、水平方向に隣接している２枚の天井材の端部同士の上面が当接する押え部材と、天井母屋部材に着脱自在に連結されて２枚の前記天井材の前記端部同士の下面を受ける保持部材と、を備え、母屋固定装置の挟持部は、天井母屋部材に固定されて下部フランジのフランジ下面に当接する第１挟持部材と、第１挟持部材に連結され、下部フランジのウェブを挟んで一方側のフランジ上面及び他方側のフランジ上面に対面する辺部を備えている一対の第２挟持部材と、一対の第２挟持部材のそれぞれの辺部に上部から貫通してねじ込まれ、ボルト頭部が一方側のフランジ上面及び他方側のフランジ上面を押圧している挟持ボルトと、を備えている。 In order to achieve the above object, the ceiling structure of a building according to one aspect of the present invention is such that a web extends in the vertical direction, an upper flange is formed at the upper portion of the web, and a lower flange is formed at the lower portion of the web. A ceiling purlin member is fixed to the extending H-shaped steel beam via a purlin fixing device, and ends of a plurality of ceiling members laid horizontally on the lower surface of the ceiling purlin member are supported via a ceiling support device. In the building ceiling structure, the purlin fixing device includes a clamping portion that fixes the ceiling purlin member to the H-shaped steel beam by clamping the lower flange from the flange upper surface side and the flange lower surface side, The ceiling support device includes a presser member in which upper surfaces of two end portions of the ceiling material adjacent in the horizontal direction are in contact with each other and a ceiling purlin member that is detachably connected to the end portions of the two ceiling members. A holding member for receiving the lower surfaces of each other; The provided, sandwiching portion of the purlin fixing device includes a first clamping member abutting on the flange lower surface of the lower flange is fixed to the ceiling purlins member is coupled to the first clamping member, the one side across the lower flange web A pair of second clamping members having sides facing the flange upper surface and the flange upper surface on the other side, and screwed through the respective side portions of the pair of second clamping members from above, and the bolt head is one A clamping bolt that presses the flange upper surface on the side and the flange upper surface on the other side .

また、本発明の一態様に係る建物の天井施工方法は、ウェブが上下方向に延在し、ウェブの上部に上部フランジ、ウェブの下部に下部フランジが形成されて水平方向に延在するＨ形鋼梁に、母屋固定装置を使用して天井母屋部材を固定し、天井母屋部材の下面に、水平方向に敷設された複数の天井材の端部を、天井支持装置を使用して支持する建物の天井施工方法であって、母屋固定装置の挟持部で前記下部フランジをフランジ上面側及びフランジ下面側から挟持することで、前記Ｈ形鋼梁に前記天井母屋部材を固定する工程を行い、天井母屋部材の下面に固定されている天井支持装置の押え部材に、水平方向に隣接している２枚の天井材の端部同士の上面を当接させ、天井母屋部材の下面に固定される保持部材で２枚の前記天井材の端部同士の下面を受ける工程を行うとともに、母屋固定装置を使用してＨ形鋼梁に天井母屋部材を固定する工程では、天井母屋部材に固定した第１挟持部材を下部フランジの前記フランジ下面に当接し、第１挟持部材に連結した一対の第２挟持部材の辺部を、下部フランジのウェブを挟んで一方側のフランジ上面及び他方側のフランジ上面に対面させ、一対の第２挟持部材のそれぞれの辺部に上部から貫通してねじ込んだ挟持ボルトのボルト頭部で、一方側のフランジ上面及び他方側のフランジ上面に押圧するようにした。 Moreover, the ceiling construction method of the building which concerns on 1 aspect of this invention WHEREIN: The web extends in the up-down direction, an upper flange is formed in the upper part of a web, and a lower flange is formed in the lower part of a web, and it is H shape extended. A ceiling purlin member is fixed to a steel beam using a purlin fixing device, and the end of a plurality of ceiling members laid horizontally on the lower surface of the ceiling purlin member is supported using a ceiling support device. of a ceiling construction method, by sandwiching the lower flange from the flange top side and the lower flange surface side holding portions purlin fixing device, have rows the step of fixing the roof purlins member to said H-shaped steel beams, The upper surface of the ends of two ceiling members adjacent in the horizontal direction is brought into contact with the holding member of the ceiling support device fixed to the lower surface of the ceiling purlin member, and is fixed to the lower surface of the ceiling purlin member. The same end of the two ceiling members with the holding member Step rows Utotomoni undergoing lower surface of, in the step of fixing the roof purlins member to H-section steel beam using a purlin fixing apparatus, those of the first holding member fixed to the ceiling purlins member to the flange lower surface of the lower flange The sides of the pair of second clamping members that are in contact with each other and are connected to the first clamping member are opposed to the upper surface of the flange on one side and the upper surface of the flange on the other side across the web of the lower flange, and each of the pair of second clamping members It was made to press on the flange upper surface of one side and the flange upper surface of the other side with the bolt head of the clamping bolt which penetrated and screwed into the side part from above.

本発明に係る建物の天井構造及びその天井施工方法によれば、Ｈ形鋼からなる天井梁（Ｈ形鋼梁）に対する天井母屋部材の固定作業と、天井母屋部材による天井材の支持作業を、労力を削減して簡単に行うことができるとともに、天井裏に空調設備のための広い空間を設けることができる。 According to the ceiling structure of a building and the ceiling construction method according to the present invention, the fixing operation of the ceiling purlin member to the ceiling beam made of H-shaped steel (H-shaped steel beam), and the supporting operation of the ceiling material by the ceiling purlin member, It can be done easily with reduced labor, and a large space for air conditioning equipment can be provided behind the ceiling.

構造Ｈ形鋼梁が天井母屋部材を固定し、天井母屋部材が天井材を支持している本発明に係る第１実施形態の天井構造を備えた建物の縦断面図である。It is a longitudinal cross-sectional view of the building provided with the ceiling structure of 1st Embodiment which concerns on this invention which the structure H-shaped steel beam fixes a ceiling purlin member and the ceiling purlin member supports the ceiling material. 本発明に係る第１実施形態の建物の天井構造を天井裏側から示した平面図である。It is the top view which showed the ceiling structure of the building of 1st Embodiment which concerns on this invention from the ceiling back side. 本発明に係る第１実施形態の建物の天井構造を天井裏側から示した斜視図である。It is the perspective view which showed the ceiling structure of the building of 1st Embodiment which concerns on this invention from the ceiling back side. 本発明に係る第１実施形態で使用されている母屋固定部材を構成する部材を示す斜視図である。It is a perspective view which shows the member which comprises the purlin fixing member used by 1st Embodiment which concerns on this invention. 図２のＡ−Ａ線矢視図である。It is an AA arrow directional view of FIG. 図５のＢ−Ｂ線矢視図である。It is a BB line arrow directional view of FIG. 図２のＣ−Ｃ線矢視図である。FIG. 3 is a view taken along line CC in FIG. 2. 図７のＤ−Ｄ線矢視図である。FIG. 8 is a view taken along line DD in FIG. 7. 本発明に係る第１実施形態の建物の天井施工方法において構造Ｈ形鋼梁が天井母屋部材を固定する手順を示す図である。It is a figure which shows the procedure in which the structure H-shaped steel beam fixes a ceiling purlin member in the ceiling construction method of the building of 1st Embodiment which concerns on this invention. 本発明に係る第１実施形態の建物の天井施工方法において天井母屋部材が天井材を支持する手順を示す図である。It is a figure which shows the procedure in which a ceiling purlin member supports a ceiling material in the ceiling construction method of the building of 1st Embodiment which concerns on this invention. 本発明に係る天井支持装置の第２実施形態の下部保持部材を構成する分割体を示す図である。It is a figure which shows the division body which comprises the lower holding member of 2nd Embodiment of the ceiling support apparatus which concerns on this invention. 図１１で示した分割体の断面形状を示すものである。It shows the cross-sectional shape of the divided body shown in FIG. ２つの分割体を使用して本発明に係る第２実施形態の天井支持装置の下部保持部材を形成する手順を示す図である。It is a figure which shows the procedure which forms the lower holding member of the ceiling support apparatus of 2nd Embodiment which concerns on this invention using two division bodies.

次に、図面を参照して、本発明に係る第１及び第２実施形態を説明する。以下の図面の記載において、同一又は類似の部分には同一又は類似の符号を付している。ただし、図面は模式的なものであり、厚みと平面寸法との関係、各層の厚みの比率等は現実のものとは異なることに留意すべきである。したがって、具体的な厚みや寸法は以下の説明を参酌して判断すべきものである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれていることはもちろんである。
また、以下に示す第１及び第２実施形態は、本発明の技術的思想を具体化するための装置や方法を例示するものであって、本発明の技術的思想は、構成部品の材質、形状、構造、配置等を下記のものに特定するものでない。本発明の技術的思想は、特許請求の範囲に記載された請求項が規定する技術的範囲内において、種々の変更を加えることができる。 Next, first and second embodiments according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.
Further, the following first and second embodiments exemplify apparatuses and methods for embodying the technical idea of the present invention, and the technical idea of the present invention is a material of a component, The shape, structure, arrangement, etc. are not specified below. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.

［第１実施形態の天井構造］
以下、本発明に係る第１実施形態の天井構造について図面を参照しながら説明する。各図において、上下方向をＺで示し、上下方向Ｚに直交する水平方向をＹの矢印で示し、水平方向Ｙに直交する水平方向をＸで示している。
図１から図１０は、第１実施形態の天井構造を示すものである。
図１に示すように、建物１は、体育館や室内プール等の公共施設、空港ターミナルビル、劇場、シネコンなどの鉄骨造りの構造物であり、この建物１には、床面（不図示）から６メートルを超えた高さの位置に、複数枚の天井材２が水平方向Ｘ，Ｙを含む水平面内に敷設されている。 [Ceiling structure of the first embodiment]
Hereinafter, a ceiling structure according to a first embodiment of the present invention will be described with reference to the drawings. In each figure, the vertical direction is indicated by Z, the horizontal direction orthogonal to the vertical direction Z is indicated by an arrow Y, and the horizontal direction orthogonal to the horizontal direction Y is indicated by X.
1 to 10 show the ceiling structure of the first embodiment.
As shown in FIG. 1, the building 1 is a steel structure such as a public facility such as a gymnasium or indoor pool, an airport terminal building, a theater, a cine-con, and the like from the floor (not shown). A plurality of ceiling members 2 are laid in a horizontal plane including the horizontal directions X and Y at a position having a height exceeding 6 meters.

建物１の構造柱３には、水平方向Ｙに延在した天井梁（天井構造材）４の長手方向両端部が固定されており、この天井梁４は、図２に示すように、水平方向Ｘに所定のスパンをあけて複数本平行に配置されている。
天井梁４は、図３に示すように、ウェブ８が上下方向Ｚに延在し、ウェブ８の上部に上部フランジ９が水平方向Ｘに延在し、ウェブ８の下部に下部フランジ１０が水平方向Ｘに延在しているＨ形鋼である（以下、Ｈ形鋼梁４と称する）。
複数のＨ形鋼梁４の下部には、図２に示すように、水平方向Ｘに延在した天井母屋部材５が、水平方向Ｙに所定のスパンをあけて複数本平行に配置されており、これら複数本の天井母屋部材５は、母屋固定装置６を介してＨ形鋼梁４に固定されている。 The longitudinal ends of a ceiling beam (ceiling structure material) 4 extending in the horizontal direction Y are fixed to the structural column 3 of the building 1, and the ceiling beam 4 is arranged in the horizontal direction as shown in FIG. A plurality of X are arranged in parallel with a predetermined span.
As shown in FIG. 3, the ceiling beam 4 has a web 8 extending in the up-down direction Z, an upper flange 9 extending in the horizontal direction X at the top of the web 8, and a lower flange 10 at the bottom of the web 8 being horizontal. It is an H-section steel extending in the direction X (hereinafter referred to as an H-section steel beam 4).
Under the plurality of H-shaped steel beams 4, as shown in FIG. 2, a plurality of ceiling purlin members 5 extending in the horizontal direction X are arranged in parallel with a predetermined span in the horizontal direction Y. The plurality of ceiling purlin members 5 are fixed to the H-shaped steel beam 4 via the purlin fixing device 6.

天井母屋部材５は、ウェブ１１が上下方向Ｚに延在し、ウェブ１１を挟んで上下端部に上部フランジ１２及び下部フランジ１３が水平方向Ｙに延在し、上部フランジ１２及び下部フランジ１３の先端部に上部リップ１４及び下部リップ１５が上下方向Ｚに延在したＣ型鋼（リップ溝形鋼）である。
また、図３に示すように、複数本の天井母屋部材５の所定位置の下部には、天井支持装置７が複数取付けられており、これら天井支持装置７に端部が支持された複数枚の天井材２が、水平方向Ｘ，Ｙを含む水平面内に敷設されている。 In the ceiling purlin member 5, the web 11 extends in the up-down direction Z, the upper flange 12 and the lower flange 13 extend in the horizontal direction Y at the upper and lower ends across the web 11, and the upper flange 12 and the lower flange 13 The upper lip 14 and the lower lip 15 are C-shaped steel (lip groove steel) extending in the vertical direction Z at the tip.
Also, as shown in FIG. 3, a plurality of ceiling support devices 7 are attached to the lower part of a predetermined position of the plurality of ceiling purlin members 5, and a plurality of sheets whose end portions are supported by these ceiling support devices 7 are mounted. The ceiling material 2 is laid in a horizontal plane including the horizontal directions X and Y.

［母屋固定装置］
母屋固定装置６は、図４に示すように、長方形状の母屋連結板１６と、横断面コ字形状の第１挟持部材１７と、等辺アングルからなる一対の第２挟持部材１８，１８と、を備えている。
母屋連結板１６の短尺方向の一方側には、長尺方向に所定間隔を開けて複数のボルト貫通孔１６ａが形成されている。
第１挟持部材１７は、長方形状の一対の対向板１９，１９と、これら一対の対向板１９，１９の短尺方向縁部で一体化された挟持板２０とで構成されており、一対の対向板１９，１９に、長軸が短尺方向に延在する真円形状のボルト貫通孔１９ａが形成されている。 [Main building fixing device]
As shown in FIG. 4, the purlin fixing device 6 includes a rectangular purlin connecting plate 16, a first clamping member 17 having a U-shaped cross section, and a pair of second clamping members 18, 18 having equilateral angles, It has.
A plurality of bolt through holes 16a are formed on one side of the main building connecting plate 16 in the short direction at predetermined intervals in the long direction.
The first clamping member 17 is composed of a pair of rectangular opposing plates 19, 19 and a clamping plate 20 that is integrated at the edges in the short direction of the pair of opposing plates 19, 19. The plates 19 and 19 are formed with perfect circular bolt through holes 19a whose major axis extends in the short direction.

この第１挟持部材１７は、母屋連結板１６の表面の短尺方向の他端側に面一で固定されている。
一対の第２挟持部材１８，１８は、一方の辺部２１にボルト貫通孔２１ａ（図５参照）が形成されており、このボルト貫通孔２１ａに対応する一方の辺部２１の外周にナット２２が溶接で固定されている。また、他方の辺部２３には真円形状のボルト貫通孔２３ａが形成されている。 The first clamping member 17 is fixed flush with the other end in the short direction of the surface of the purlin connecting plate 16.
The pair of second clamping members 18 and 18 has a bolt through hole 21a (see FIG. 5) formed in one side portion 21 and a nut 22 on the outer periphery of the one side portion 21 corresponding to the bolt through hole 21a. Is fixed by welding. The other side portion 23 is formed with a perfect circular bolt through hole 23a.

図５及び図６は、Ｈ形鋼梁４が母屋固定装置６により天井母屋部材５を固定している構造を示している。これらの図によると、天井母屋部材５のウェブ１１を貫通した連結ボルト２５が、母屋連結板１６のボルト貫通孔１６ａを通過してナット２６に螺合することで、母屋連結板１６が天井母屋部材５に固定されている。ここで、図６に示すように、母屋連結板１６は、２本の天井母屋部材５を水平方向Ｘに延在させた状態で互いの端部に固定されている。
そして、第１挟持部材１７の一対の対向板１９，１９に、一対の第２挟持部材１８，１８の他方の辺部２３が対向し、第１挟持部材１７の挟持板２０と一対の第２挟持部材１８，１８の一方の辺部２１との間に、Ｈ形鋼梁４の下部フランジ１０（図６で示すように、左側下部フランジ１０ａ，右側下部フランジ１０ｂ）を配置した状態で、互いに対応したボルト貫通孔２２ａ及びボルト貫通孔１９ａに連結ボルト２７を貫通してナット２８を螺合する。 5 and 6 show a structure in which the H-shaped steel beam 4 fixes the ceiling purlin member 5 by the purlin fixing device 6. According to these drawings, the connecting bolt 25 penetrating the web 11 of the ceiling purlin member 5 passes through the bolt through hole 16a of the purlin connecting plate 16 and is screwed into the nut 26, so that the purlin connecting plate 16 is connected to the ceiling purlin. It is fixed to the member 5. Here, as shown in FIG. 6, the purlin connecting plate 16 is fixed to the ends of the two ceiling purlin members 5 extending in the horizontal direction X.
Then, the other side portion 23 of the pair of second clamping members 18, 18 faces the pair of opposing plates 19, 19 of the first clamping member 17, and the pair of second plates 23 of the first clamping member 17 and the pair of second plates. In a state where the lower flange 10 of the H-shaped steel beam 4 (left lower flange 10a and right lower flange 10b as shown in FIG. 6) is disposed between one side 21 of the clamping members 18 and 18, The connecting bolt 27 is passed through the corresponding bolt through hole 22a and bolt through hole 19a, and the nut 28 is screwed.

ここで、図６に示すように、第１挟持部材１７の挟持板２０の上面と第２挟持部材１８の一方の辺部２１の下面との間の距離Ｄは、Ｈ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂの厚さより僅かに大きな値に設定されており、一対の第２挟持部材１８，１８のナット２２に螺合した一対の挟持ボルト２９，２９の頭部を左側下部フランジ１０ａ，右側下部フランジ１０ｂ側に移動することで、第１挟持部材１７の挟持板２０と、一対の挟持ボルト２９，２９の頭部との間で、Ｈ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂが挟持される。このように、天井母屋部材５は、母屋固定装置６を使用してＨ形鋼梁４に固定されている。 Here, as shown in FIG. 6, the distance D between the upper surface of the clamping plate 20 of the first clamping member 17 and the lower surface of one side portion 21 of the second clamping member 18 is the left side of the H-shaped steel beam 4. A value slightly larger than the thickness of the lower flange 10a and the right lower flange 10b is set, and the heads of the pair of clamping bolts 29 and 29 screwed into the nuts 22 of the pair of second clamping members 18 and 18 are placed on the lower left side. The left lower flange 10a of the H-shaped steel beam 4 is moved between the clamping plate 20 of the first clamping member 17 and the heads of the pair of clamping bolts 29 and 29 by moving to the flange 10a and the right lower flange 10b side. , The right lower flange 10b is clamped. In this way, the ceiling purlin member 5 is fixed to the H-shaped steel beam 4 using the purlin fixing device 6.

［天井支持装置］
天井支持装置７は、図７及び図８に示すように、天井母屋部材５のウェブ１１に連結された連結板３０と、天井母屋部材５の下部フランジ１３及び連結板３０に固定され、天井材２の上部を押さえ込む押え部材３１と、押え部材３１とともに下部フランジ１３及び連結板３０に固定された上部保持部材３２と、上部保持部材３２に着脱自在に連結し天井材２を下側から受けて支持する下部保持部材３３と、下部保持部材３３の下側の面を覆っている化粧部材３４と、を備えている。 [Ceiling support device]
The ceiling support device 7 is fixed to the connecting plate 30 connected to the web 11 of the ceiling purlin member 5 and the lower flange 13 and the connecting plate 30 of the ceiling purlin member 5 as shown in FIGS. 2 and the upper holding member 32 fixed to the lower flange 13 and the connecting plate 30 together with the holding member 31, and the upper holding member 32 to be detachably connected to receive the ceiling material 2 from below. A lower holding member 33 to be supported and a decorative member 34 covering the lower surface of the lower holding member 33 are provided.

連結板３０は、図８に示すように、金属平板をＬ字状に折曲し、母屋連結部３０ａと支持部材連結部３０ｂとを備えた部材であり、母屋連結部３０ａは、天井母屋部材５のウェブ１１の外面に当接して固定ねじ３５を介して固定され、支持部材連結部３０ｂは下部フランジ１３と面一に配置される。
押え部材３１は、図７に示すように、長尺な金属平板を横断面コ字状に折曲した部材であり、長尺な固定部３１ａと、この固定部３１ａの短尺方向の両縁部から互いに対向する方向に延在している一対の押え部３１ｂ，３１ｂとを備え、固定部３１ａは、天井母屋部材５の下部フランジ１３及び連結板３０の支持部材連結部３０ｂに当接して固定ねじ３６を介して固定される。 As shown in FIG. 8, the connecting plate 30 is a member obtained by bending a metal flat plate into an L shape and including a purlin connecting portion 30 a and a support member connecting portion 30 b. The purlin connecting portion 30 a is a ceiling purlin member. The support member connecting portion 30b is arranged flush with the lower flange 13 by abutting against the outer surface of the web 11 of 5 and being fixed via a fixing screw 35.
As shown in FIG. 7, the pressing member 31 is a member obtained by bending a long metal flat plate into a U-shaped cross section, and includes a long fixing portion 31a and both edges of the fixing portion 31a in the short direction. A pair of presser portions 31b, 31b extending in a direction facing each other, and the fixing portion 31a is fixed in contact with the lower flange 13 of the ceiling purlin member 5 and the support member connecting portion 30b of the connecting plate 30. It is fixed via a screw 36.

上部保持部材３２は、アルミニウム合金の押出成形で形成した部材であり、図７に示すように、長方形板状の固定部３２ａと、固定部３１ａの短尺方向中央部から突出している中空形状の連結台座３２ｂと、短尺方向に平行に離間して連結台座３２ｂから立ち上がっている一対の連結片３２ｃ，３２ｃと、これら一対の連結片３２ｃ，３２ｃの互いに対向する面に形成された係合凹凸部３２ｄと、を備えている。この上部保持部材３２は、固定部３１ａを押え部材３１の固定部３１ａに当接し、固定部３１ａとともに固定ねじ３６で固定される。なお、連結台座３２ｂの下部に作業孔３２ｅが形成されており、この作業孔３２ｅに固定ねじ３６、ドライバーを通過させることで固定ねじ３６の固定作業が行われる。 The upper holding member 32 is a member formed by extrusion molding of an aluminum alloy, and as shown in FIG. 7, a rectangular plate-like fixed portion 32a and a hollow-shaped connection protruding from the short-direction center portion of the fixed portion 31a The base 32b, a pair of connecting pieces 32c, 32c that are spaced apart from the connecting base 32b in parallel with the short length direction, and an engaging uneven portion 32d formed on the mutually opposing surfaces of the pair of connecting pieces 32c, 32c. And. The upper holding member 32 abuts the fixing portion 31a against the fixing portion 31a of the pressing member 31, and is fixed together with the fixing portion 31a by a fixing screw 36. A work hole 32e is formed in the lower part of the coupling base 32b, and the fixing screw 36 is fixed by passing a fixing screw 36 and a driver through the work hole 32e.

下部保持部材３３も、アルミニウム合金の押出成形で形成した部材であり、図７に示すように、長方形状の受け板部３３ａと、受け板部３３ａの短尺方向中央部から短尺方向に平行に離間して受け板部３３ａから立ち上がっている一対の弾性変形連結片３３ｂ，３３ｂと、を備えている。一対の弾性変形連結片３３ｂ，３３ｂは、上部保持部材３２の一対の連結片３２ｃ，３２ｃの間に弾性変形した状態で入り込み、一対の連結片３２ｃ，３２ｃの係合凹凸部３２ｄに嵌まり込む凹凸形状を有している。
化粧部材３４は、下部保持部材３３の受け板部３３ａの下面に着脱自在に重なり、化粧を施した部材である。
そして、水平方向Ｘ，Ｙを含む水平面内に隣接して敷設された２枚の天井材２は、図７に示すように、天井支持装置７の下部保持部材３３の受け板部３３ａが、天井材２の水平方向Ｘの端部側を下側から受け、天井支持装置７の押え部材３１の押え部３１ｂが、天井材２の端部側を上側から押え付けることで、天井支持装置７を介して天井母屋部材５に支持されている。 The lower holding member 33 is also a member formed by extrusion molding of an aluminum alloy. As shown in FIG. 7, the rectangular receiving plate portion 33a is spaced in parallel with the short direction from the short direction central portion of the receiving plate portion 33a. And a pair of elastically deformable connecting pieces 33b and 33b rising from the receiving plate portion 33a. The pair of elastically deformable connecting pieces 33b and 33b enter between the pair of connecting pieces 32c and 32c of the upper holding member 32 in an elastically deformed state, and fit into the engaging uneven portions 32d of the pair of connecting pieces 32c and 32c. It has an uneven shape.
The decorative member 34 is a member that is detachably overlapped with the lower surface of the receiving plate portion 33a of the lower holding member 33 and is decorated.
As shown in FIG. 7, the two ceiling members 2 laid adjacent to each other in the horizontal plane including the horizontal directions X and Y have the receiving plate portion 33a of the lower holding member 33 of the ceiling support device 7 as a ceiling. The end portion side in the horizontal direction X of the material 2 is received from the lower side, and the pressing portion 31b of the pressing member 31 of the ceiling support device 7 presses the end portion side of the ceiling material 2 from the upper side, so that the ceiling supporting device 7 is Through the ceiling purlin member 5.

［第１実施形態の天井構造の施工方法］
次に、Ｈ形鋼梁４に天井母屋部材５を固定する施工手順について図９（ａ）〜（ｃ）を参照して説明する。
先ず、図９（ａ）に示すように、天井母屋部材５のウェブ１１に、母屋固定装置６を構成する母屋連結板１６及び第１挟持部材１７を固定する。
次いで、天井母屋部材５をＨ形鋼梁４側に移動していき、第１挟持部材１７の挟持板２０をＨ形鋼梁４の下部フランジ１０の下面に当接させる。 [Construction method of the ceiling structure of the first embodiment]
Next, a construction procedure for fixing the ceiling purlin member 5 to the H-shaped steel beam 4 will be described with reference to FIGS.
First, as shown in FIG. 9A, the purlin connecting plate 16 and the first clamping member 17 constituting the purlin fixing device 6 are fixed to the web 11 of the ceiling purlin member 5.
Next, the ceiling purlin member 5 is moved to the H-shaped steel beam 4 side, and the clamping plate 20 of the first clamping member 17 is brought into contact with the lower surface of the lower flange 10 of the H-shaped steel beam 4.

次いで、図９（ｂ）に示すように、一対の第２挟持部材１８，１８の一方の辺部２１，２１をＨ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂの上部に当接した状態で、一対の第２挟持部材１８，１８の他方の辺部２３を第１挟持部材１７の一対の対向板１９，１９に固定する。この際、第１挟持部材１７の挟持板２０の上面と第２挟持部材１８の一方の辺部２１の下面との間の距離Ｄは、Ｈ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂの厚さより僅かに大きな値に設定されている。
これにより、Ｈ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂに、母屋固定装置６の一対の第２挟持部材１８，１８の一方の辺部２１，２１が係合した状態で、天井母屋部材５がＨ形鋼梁４に仮固定される。 Next, as shown in FIG. 9B, the one side portions 21 and 21 of the pair of second clamping members 18 and 18 are in contact with the upper portions of the left lower flange 10a and the right lower flange 10b of the H-shaped steel beam 4. In this state, the other side 23 of the pair of second clamping members 18, 18 is fixed to the pair of opposing plates 19, 19 of the first clamping member 17. At this time, the distance D between the upper surface of the clamping plate 20 of the first clamping member 17 and the lower surface of the one side portion 21 of the second clamping member 18 is determined by the left lower flange 10a and the right lower flange of the H-shaped steel beam 4. It is set to a value slightly larger than the thickness of 10b.
As a result, in the state where one side portions 21, 21 of the pair of second clamping members 18, 18 of the purlin fixing device 6 are engaged with the left lower flange 10 a and the right lower flange 10 b of the H-shaped steel beam 4, the ceiling The purlin member 5 is temporarily fixed to the H-shaped steel beam 4.

次いで、図９（ｃ）に示すように、母屋固定装置６のナット２２に螺合している一対の挟持ボルト２９，２９を回転し、その頭部を左側下部フランジ１０ａ，右側下部フランジ１０ｂ側に移動させていく。これにより、第１挟持部材１７の挟持板２０と、一対の挟持ボルト２９，２９の頭部と間で、Ｈ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂを挟持する。
このように、天井母屋部材５は、母屋固定装置６を介してＨ形鋼梁４に固定される。 Next, as shown in FIG. 9 (c), the pair of clamping bolts 29, 29 that are screwed into the nut 22 of the purlin fixing device 6 are rotated, and the heads of the left lower flange 10a and the right lower flange 10b side are turned. I will move to. Thereby, the left lower flange 10a and the right lower flange 10b of the H-shaped steel beam 4 are clamped between the clamping plate 20 of the first clamping member 17 and the heads of the pair of clamping bolts 29 and 29.
Thus, the ceiling purlin member 5 is fixed to the H-shaped steel beam 4 via the purlin fixing device 6.

次に、天井母屋部材５の下部に天井材２を敷設する施工手順について図７、図８及び図１０を参照して説明する。
先ず、図８に示すように、天井母屋部材５のウェブ１１に連結板３０を連結する。
また、図１０示すように、連結板３０及び天井母屋部材５の下部フランジ１３に、押え部材３１の固定部３１ａ及び上部保持部材３２の固定部３２ａを重ねて固定する。
次いで、２枚の天井材２の互いに対向する水平方向Ｘ方向の端部の上部を押し上げて、押え部材３１の一対の押え部３１ｂに当接させておく。
次いで、受け板部３３ａに化粧部材３４が装着されている下部保持部材３３の１対の弾性変形連結片３３ｂ，３３ｂを、上部保持部材３２の一対の連結片３２ｃに向けて係合させていく。 Next, a construction procedure for laying the ceiling material 2 under the ceiling purlin member 5 will be described with reference to FIGS. 7, 8, and 10.
First, as shown in FIG. 8, the connecting plate 30 is connected to the web 11 of the ceiling purlin member 5.
Further, as shown in FIG. 10, the fixing portion 31 a of the pressing member 31 and the fixing portion 32 a of the upper holding member 32 are overlapped and fixed to the connecting plate 30 and the lower flange 13 of the ceiling purlin member 5.
Next, the upper portions of the opposite end portions of the two ceiling members 2 in the horizontal direction X are pushed up and brought into contact with the pair of presser portions 31 b of the presser member 31.
Next, the pair of elastically deforming connecting pieces 33 b and 33 b of the lower holding member 33 on which the decorative member 34 is mounted on the receiving plate portion 33 a are engaged toward the pair of connecting pieces 32 c of the upper holding member 32. .

下部保持部材３３の１対の弾性変形連結片３３ｂ，３３ｂは、上部保持部材３２の一対の連結片３２ｃ，３２ｃの間に弾性変形した状態（図１０の一点鎖線で示す状態）で入り込み、一対の連結片３２ｃ，３２ｃの係合凹凸部３２ｄに弾性復帰した状態で嵌まり込む。
これにより、図７に示すように、２枚の天井材２の水平方向Ｘの両端部は、下部保持部材３３の受け板部３３ａが下側から受け、押え部材３１の押え部３１ｂが上側に押え付けることで、天井支持装置７を介して天井母屋部材５に支持される。他の天井材２も、２枚の天井材２の水平方向Ｘ方向の両端部が天井支持装置７を介して天井母屋部材５に支持されることで、水平方向Ｘ，Ｙを含む水平面内に敷設されている。 The pair of elastically deforming connecting pieces 33b and 33b of the lower holding member 33 enter between the pair of connecting pieces 32c and 32c of the upper holding member 32 in an elastically deformed state (a state indicated by a one-dot chain line in FIG. 10). The coupling pieces 32c and 32c are fitted into the engagement irregularities 32d in an elastically restored state.
As a result, as shown in FIG. 7, the both ends in the horizontal direction X of the two ceiling members 2 are received from the lower side by the receiving plate portion 33 a of the lower holding member 33, and the pressing portion 31 b of the pressing member 31 is on the upper side. By being pressed, it is supported by the ceiling purlin member 5 via the ceiling support device 7. The other ceiling members 2 are also supported by the ceiling purlin member 5 via the ceiling support device 7 at both ends in the horizontal direction X of the two ceiling members 2, so that they are in a horizontal plane including the horizontal directions X and Y. It is laid.

［第１実施形態の天井構造及び施工方法の効果］
第１実施形態の天井構造及び施工方法では、Ｈ形鋼梁４に天井母屋部材５を固定している途中で、Ｈ形鋼梁４の左側下部フランジ１０ａ，右側下部フランジ１０ｂに、母屋固定装置６の一対の第２挟持部材１８，１８の一方の辺部２１，２１を係合することで、天井母屋部材５をＨ形鋼梁４４に仮固定することができるので、天井母屋部材５の固定作業の労力を低減することができる。
また、天井母屋部材５をＨ形鋼梁４に仮固定している母屋固定装置６の一対の挟持ボルト２９を回転させるだけで、母屋固定装置６がＨ形鋼梁４の左側下部フランジ１０ａ，１０ｂを挟持してＨ形鋼梁４への天井母屋部材５の固定作業が完了することができるので、天井母屋部材５の固定作業も効率よく行うことができる。 [Effect of the ceiling structure and construction method of the first embodiment]
In the ceiling structure and construction method of the first embodiment, the purlin fixing device is attached to the left lower flange 10a and the right lower flange 10b of the H-shaped steel beam 4 while the ceiling purlin member 5 is being fixed to the H-shaped steel beam 4. 6, the ceiling purlin member 5 can be temporarily fixed to the H-shaped steel beam 44 by engaging one side 21, 21 of the pair of second clamping members 18, 18. The labor of fixing work can be reduced.
Further, the main building fixing device 6 can rotate the left lower flange 10a of the H-shaped steel beam 4 only by rotating the pair of clamping bolts 29 of the main building fixing device 6 that temporarily fixes the ceiling purlin member 5 to the H-shaped steel beam 4. Since the fixing operation of the ceiling purlin member 5 to the H-shaped steel beam 4 can be completed by sandwiching 10b, the fixing operation of the ceiling purlin member 5 can also be performed efficiently.

また、天井母屋部材５の下部に天井材２を敷設する際には、天井支持装置７の天井母屋部材５の下面に固定されている押え部材３１に、隣接する２枚の天井材２の水平方向Ｘの両端部を当接した状態で、押え部材３１とともに天井母屋部材５に固定されている上部保持部材３２に下方から下部保持部材３３を係合させることで、隣接する２枚の天井材２の水平方向Ｘの両端部を簡単に支持することができる。
そして、天井支持装置７の上部保持部材３２及び下部保持部材３３は、一対の弾性変形連結片３３ｂ，３３ｂが、一対の連結片３２ｃ，３２ｃの間に弾性変形しながら入り込んでいき係合凹凸部３２ｄに嵌まり込んでワンタッチで係合するので、天井支持装置７の装着作業を簡単に行うことができる。
さらに、第１実施形態の天井構造は、Ｈ形鋼梁４に母屋固定装置６を介して天井母屋部材５が固定され、天井母屋部材５に天井支持装置７を介して複数の天井材２を水平に敷設した構造とされているので、図１で示すように、天井裏に広い空間Ｓ１，Ｓ２を確保することができ、空調設備の設置空間を容易に設けることができる。 Further, when laying the ceiling material 2 on the lower part of the ceiling purlin member 5, the two ceiling materials 2 adjacent to the holding member 31 fixed to the lower surface of the ceiling purlin member 5 of the ceiling support device 7 are horizontally disposed. In a state where both ends of the direction X are in contact, the lower holding member 33 is engaged with the upper holding member 32 fixed to the ceiling purlin member 5 together with the presser member 31 from below, so that two adjacent ceiling members 2 can be easily supported at both ends in the horizontal direction X.
Then, the upper holding member 32 and the lower holding member 33 of the ceiling support device 7 have the pair of elastically deformable connecting pieces 33b and 33b enter while being elastically deformed between the pair of connecting pieces 32c and 32c. Since it fits in 32d and engages by one touch, the mounting | wearing operation | work of the ceiling support apparatus 7 can be performed easily.
Furthermore, in the ceiling structure of the first embodiment, a ceiling purlin member 5 is fixed to the H-shaped steel beam 4 via a purlin fixing device 6, and a plurality of ceiling members 2 are attached to the ceiling purlin member 5 via a ceiling support device 7. Since it is set as the structure laid horizontally, as shown in FIG. 1, wide space S1, S2 can be ensured in the back of a ceiling, and the installation space of an air-conditioning equipment can be provided easily.

［天井支持装置を構成する第２実施形態の下部保持部材］
次に、図１１から図１３は、天井支持装置７（図７，図１０参照）の第２実施形態の下部保持部材を構成する分割体４０を示すものである。
図１２（ａ）は、図１１のＥ−Ｅ矢視断面を示し、図１２（ｂ）は、図１１のＦ−Ｆ矢視断面を示すものである。
分割体４０は、アルミニウム合金の押出成形で形成した部材であり、第１受け板部４０ａと、一対の弾性変形連結片４０ｂ，４０ｂと、第２受け板部４０ｃと、を備えている。 [Lower Holding Member of Second Embodiment Constructing Ceiling Support Device]
Next, FIGS. 11 to 13 show a divided body 40 constituting the lower holding member of the second embodiment of the ceiling support device 7 (see FIGS. 7 and 10).
12A shows a cross section taken along the line EE in FIG. 11, and FIG. 12B shows a cross section taken along the line FF in FIG.
The divided body 40 is a member formed by extrusion molding of an aluminum alloy, and includes a first receiving plate portion 40a, a pair of elastic deformation connecting pieces 40b and 40b, and a second receiving plate portion 40c.

すなわち、長方形状の板材の長尺方向を２等分し、且つ短尺方向を２等分して４つの平面領域に分けた際の一つの平面領域を切り欠くことで、切欠き部４０ｄが形成されているとともに、切欠き部４０ｄの短尺方向に隣接して第１受け板部４０ａが形成されている。
また、一対の弾性変形連結片４０ｂ，４０ｂは、切欠き部４０ｄが形成されていない長尺方向の一端側から切欠き部４０ｄに向かって形成されているとともに、一対の弾性変形連結片４０ｂ，４０ｂの短尺方向に隣接して第２受け板部４０ｃが形成されている。 That is, the notched portion 40d is formed by notching one plane region when the rectangular plate material is divided into two equal parts in the long direction and divided into four flat areas by dividing the short direction into two equal parts. In addition, a first receiving plate portion 40a is formed adjacent to the cutout portion 40d in the short direction.
The pair of elastically deformable connecting pieces 40b, 40b are formed from one end side in the longitudinal direction where the notched portion 40d is not formed toward the notched portion 40d, and the pair of elastically deformable connecting pieces 40b, A second receiving plate portion 40c is formed adjacent to the short direction of 40b.

第２実施形態の下部保持部材４１は、図１３（ａ）、（ｂ）に示すように、同一形状の２つの分割体４０Ａ，４０Ｂで構成されている。
そして、２つの分割体４０Ａ，４０Ｂを、一方の分割体４０Ａの一対の弾性変形連結片４０ｂ，４０ｂの短尺方向に、他方の分割体４０Ｂの第１受け板部４０ａが隣接し、他方の分割体４０Ｂの一対の弾性変形連結片４０ｂ，４０ｂの短尺方向に、一方の他方の分割体４０Ｂの第１受け板部４０ａが隣接し、互いの一対の弾性変形連結片４０ｂ，４０ｂが一列に延在するように配置する。 As shown in FIGS. 13A and 13B, the lower holding member 41 of the second embodiment is composed of two divided bodies 40A and 40B having the same shape.
Then, the two divided bodies 40A and 40B are arranged so that the first receiving plate portion 40a of the other divided body 40B is adjacent to the other divided body 40B in the short direction of the pair of elastic deformation connecting pieces 40b and 40b of the one divided body 40A. In the short direction of the pair of elastic deformation connecting pieces 40b, 40b of the body 40B, the first receiving plate portion 40a of the other divided body 40B is adjacent, and the pair of elastic deformation connecting pieces 40b, 40b extend in a row. Arrange to exist.

そして、図１０で示したように、２つの分割体４０Ａ，４０Ｂからなる下部保持部材４１の１対の弾性変形連結片４０ｂ，４０ｂを、上部保持部材３２の一対の連結片３２ｃに向けて係合させていき、１対の弾性変形連結片４０ｂ，４０ｂが、上部保持部材３２の一対の連結片３２ｃ，３２ｃの間に弾性変形した状態で挿入され、一対の連結片３２ｃ，３２ｃの係合凹凸部３２ｄに弾性復帰した状態で嵌まり込む。
第２実施形態の分割体４０Ａ，４０Ｂからなる下部保持部材４１を使用することで、隣接する２枚の天井材２の水平方向Ｘの両端部の下部を第１受け板部４０ａ，第２受け板部４０ｃとで確実に受けた状態で支持することができる。
また、第２実施形態の分割体４０Ａ，４０Ｂの一方だけを、上部保持部材３２の一対の連結片３２ｃ，３２ｃに係合するだけで、隣接する２枚の天井材２の水平方向Ｘの両端部を仮に支持することができるので、天井支持装置の装着作業も効率良く行うことができる。 Then, as shown in FIG. 10, the pair of elastically deformable connecting pieces 40 b and 40 b of the lower holding member 41 composed of the two divided bodies 40 </ b> A and 40 </ b> B are directed toward the pair of connecting pieces 32 c of the upper holding member 32. The pair of elastic deformation connecting pieces 40b, 40b are inserted in a state of being elastically deformed between the pair of connecting pieces 32c, 32c of the upper holding member 32, and the pair of connecting pieces 32c, 32c are engaged. It fits in the state which elastically returned to the uneven part 32d.
By using the lower holding member 41 composed of the divided bodies 40A and 40B of the second embodiment, the lower portions of both ends in the horizontal direction X of the two adjacent ceiling members 2 are connected to the first receiving plate portion 40a and the second receiving portion. It can support in the state received reliably with the board part 40c.
Further, only one of the divided bodies 40A and 40B of the second embodiment is engaged with the pair of connecting pieces 32c and 32c of the upper holding member 32, so that both ends of the two adjacent ceiling materials 2 in the horizontal direction X can be obtained. Since the part can be temporarily supported, the mounting work of the ceiling support device can be performed efficiently.

１建物
２天井材
３構造柱
４Ｈ形鋼梁
５天井母屋部材
６母屋固定装置
７天井支持装置
８ウェブ
９上部フランジ
１０下部フランジ
１０ａ左側下部フランジ
１０ｂ右側下部フランジ
１１ウェブ
１２上部フランジ
１３下部フランジ
１４上部リップ
１５下部リップ
１６母屋連結板
１６ａボルト貫通孔
１７第１挟持部材
１８第２挟持部材
１９対向板
１９ａボルト貫通孔
２０挟持板
２１一方の辺部
２１ａボルト貫通孔
２２ナット
２３他方の辺部
２３ａボルト貫通孔
２５連結ボルト
２６ナット
２７連結ボルト
２８ナット
２９挟持ボルト
３０連結板
３０ａ母屋連結部
３０ｂ支持部材連結部
３１押え部材
３１ａ固定部
３１ｂ押え部
３２上部保持部材
３２ａ固定部
３２ｂ連結台座
３２ｃ連結片
３２ｄ係合凹凸部
３２ｅ作業孔
３３下部保持部材
３３ａ受け板部
３３ｂ弾性変形連結片
３４化粧部材
３５，３６固定ねじ
４０Ａ，４０Ｂ分割体
４０ａ第１受け板部
４０ｂ弾性変形連結片
４０ｃ第２受け板部 DESCRIPTION OF SYMBOLS 1 Building 2 Ceiling material 3 Structural pillar 4 H-shaped steel beam 5 Ceiling purlin member 6 Purlin fixing device 7 Ceiling support device 8 Web 9 Upper flange 10 Lower flange 10a Left lower flange 10b Right lower flange 11 Web 12 Upper flange 13 Lower flange 14 Upper lip 15 Lower lip 16 Purlin connecting plate 16a Bolt through hole 17 First clamping member 18 Second clamping member 19 Opposing plate 19a Bolt through hole 20 Holding plate 21 One side 21a Bolt through hole 22 Nut 23 The other side 23a Bolt through hole 25 Connecting bolt 26 Nut 27 Connecting bolt 28 Nut 29 Holding bolt 30 Connecting plate 30a Purlin connecting portion 30b Support member connecting portion 31 Holding member 31a Fixing portion 31b Holding portion 32 Upper holding member 32a Fixing portion 32b Connecting base 32c Connecting piece 32d engagement uneven part 32e work hole 33 bottom Holding members 33a receiving plate portion 33b elastically deformable coupling piece 34 the decorative member 35, 36 fixing screws 40A, 40B divided body 40a first receiving plate portion 40b elastically deformable connecting pieces 40c second receiving plate portion

Claims

A ceiling purlin member extends through a purlin fixing device to an H-shaped steel beam extending in the vertical direction, with an upper flange formed at the upper portion of the web and a lower flange formed at the lower portion of the web and extending in the horizontal direction. The ceiling structure of the building is fixed, and the ends of a plurality of ceiling members laid in the horizontal direction on the lower surface of the ceiling purlin member are supported via a ceiling support device,
The purlin fixing device includes a clamping portion that fixes the ceiling purlin member to the H-shaped steel beam by clamping the lower flange from the flange upper surface side and the flange lower surface side,
The ceiling support device is detachably connected to a pressing member in which the upper surfaces of end portions of two ceiling members adjacent in the horizontal direction are in contact with each other and the ceiling purlin member. A holding member that receives the lower surfaces of the ends , and
The clamping part of the purlin fixing device is
A first clamping member fixed to the ceiling purlin member and abutting against the flange lower surface of the lower flange;
A pair of second clamping members that are connected to the first clamping member and have side portions facing the flange upper surface on one side and the upper surface of the flange on the other side across the web of the lower flange;
A clamping bolt that is threaded through the side of each of the pair of second clamping members from above and has a bolt head pressing the flange upper surface on one side and the flange upper surface on the other side. The ceiling structure of the building, characterized by

The holding member of the ceiling support device is
An upper holding member provided with a pair of connecting pieces fixed to the lower surface of the ceiling purlin member and extending downward in parallel with each other;
A lower holding member detachably coupled to the pair of coupling pieces while receiving the lower surface of the end portion of the ceiling material,
The upper holding member has engagement irregularities formed on opposite surfaces of the pair of connecting pieces,
Before Symbol lower holding member has a pair of elastically deformable connecting pieces which rises upward in parallel from the receiving plate portion receiving the lower surface of the end portion of the ceiling member is between the pair of connecting pieces of the upper retaining member 2. The building ceiling structure according to claim 1, wherein the ceiling structure of the building is engaged with the engaging uneven portion by being elastically deformed and being elastically restored .

A ceiling purlin member is formed by using a purlin fixing device on an H-shaped steel beam that extends in the vertical direction, and has an upper flange formed at the upper portion of the web and a lower flange formed at the lower portion of the web. A ceiling construction method for a building that supports, using a ceiling support device, ends of a plurality of ceiling members laid horizontally on the lower surface of the ceiling purlin member,
A step of fixing the ceiling purlin member to the H-shaped steel beam by sandwiching the lower flange from the upper surface side of the flange and the lower surface side of the flange at the clamping portion of the purlin fixing device,
The upper surface of the two ends of the ceiling material adjacent in the horizontal direction is brought into contact with the presser member of the ceiling support device fixed to the lower surface of the ceiling purlin member, and the lower surface of the ceiling purlin member is While performing the step of receiving the lower surfaces of the ends of the two ceiling materials with the holding member to be fixed ,
In the step of fixing the ceiling purlin member to the H-shaped steel beam using the purlin fixing device,
A first clamping member fixed to the ceiling purlin member is in contact with the lower surface of the flange of the lower flange;
The sides of the pair of second clamping members connected to the first clamping member are opposed to the flange upper surface on one side and the flange upper surface on the other side with the web of the lower flange interposed therebetween,
The building is characterized in that it is pressed against the upper surface of the flange on the one side and the upper surface of the flange on the other side by a bolt head of a clamping bolt that penetrates and is screwed into the side portion of each of the pair of second clamping members from above. ceiling construction how of.

Before the bolt head of the clamping bolt presses the flange upper surface on the one side and the flange upper surface on the other side, the side portions of the pair of second clamping members are placed on the flange upper surface on the one side of the lower flange. 4. The building ceiling construction method according to claim 3 , wherein the ceiling purlin member is temporarily fixed to the H-shaped steel beam by engaging with the upper surface of the flange on the other side .

In the step of supporting the ends of the two ceiling members adjacent to each other in the horizontal direction on the lower surface of the ceiling purlin member using the ceiling support device,
Using an upper holding member and a lower holding member as the ceiling support device,
The upper holding member is fixed to the lower surface of the ceiling purlin member and extends downward in parallel with each other, and has a pair of connecting pieces in which engaging uneven portions are formed on surfaces facing each other,
The lower holding member includes a pair of elastically deforming connecting pieces that rise upward in parallel from the receiving plate portion,
The pair of elastically deforming connecting pieces of the lower holding member are inserted between the pair of connecting pieces of the upper holding member in an elastically deformed state, and are elastically returned to engage with the engaging uneven portion. The ceiling construction method for a building according to claim 3 or 4.