JP5746874B2 - Ceiling structure and brace material and ceiling finishing plate fixing bracket - Google Patents

Ceiling structure and brace material and ceiling finishing plate fixing bracket Download PDF

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JP5746874B2
JP5746874B2 JP2011022329A JP2011022329A JP5746874B2 JP 5746874 B2 JP5746874 B2 JP 5746874B2 JP 2011022329 A JP2011022329 A JP 2011022329A JP 2011022329 A JP2011022329 A JP 2011022329A JP 5746874 B2 JP5746874 B2 JP 5746874B2
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ceiling
finishing plate
fixing member
ceiling finishing
brace material
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JP2012162873A (en
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小林　俊夫
俊夫 小林
徹 塩入
徹 塩入
健二 荻原
健二 荻原
智一 荒井
智一 荒井
正樹 細岡
正樹 細岡
星川　努
努 星川
和明 岩崎
和明 岩崎
大迫　勝彦
勝彦 大迫
章 大庭
章 大庭
円 山高
円 山高
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East Japan Railway Co
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East Japan Railway Co
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Description

本発明は、天井構造およびブレース材と天井仕上板の固定金具に関する。   The present invention relates to a ceiling structure, a brace material, and a fixing bracket for a ceiling finishing board.

従来、天井下地材としての野縁と野縁受けとによって枠組みされる天井構造枠を、複数の吊ボルトを用いて上部構造体（例えば上階床スラブ等）に対して吊り下げ支持させることにより構築される天井構造が知られている（特許文献１参照）。   Conventionally, by suspending and supporting a ceiling structure frame, which is framed by a field edge and a field edge receiver as a ceiling base material, from an upper structure (for example, an upper floor slab) using a plurality of suspension bolts A ceiling structure to be constructed is known (see Patent Document 1).

このような天井構造では、地震が発生したときの揺れ（特に横揺れ）に対する耐震性を向上させることを目的として、隣り合う吊ボルトの間、吊ボルトと野縁との間、又は吊ボルトと野縁受けとの間にブレース材を配置している。換言すると、吊ボルトのみで吊り下げ支持された天井構造枠は、地震の発生時に加わる水平方向の力により剪断変形してしまうため、ブレース材の上端部を吊ボルトの上端部に取り付けるとともに、下端部を隣接する他の吊ボルトの下端部、野縁又は野縁受けに取り付け、ブレース材を筋交いのように斜めに配置することで天井構造枠の揺れを抑制している。   In such a ceiling structure, for the purpose of improving the earthquake resistance against shaking (especially rolling) when an earthquake occurs, between adjacent hanging bolts, between a hanging bolt and a field edge, or with a hanging bolt A brace material is placed between it and the field guard. In other words, the ceiling structure frame supported only by the suspension bolt is sheared and deformed by a horizontal force applied when an earthquake occurs, so the upper end of the brace material is attached to the upper end of the suspension bolt and the lower end. The part is attached to the lower end of the other suspension bolt, the field edge or the field edge receiver, and the brace material is arranged obliquely like a brace to suppress the shaking of the ceiling structure frame.

特開平６−３４６５４７号公報JP-A-6-346547

ところで、従来の天井構造では、吊ボルト、野縁又は野縁受け（以下、「吊ボルト等」という。）に対してブレース材の下端部が直接取り付けられており、吊ボルト等とブレース材とにより水平方向の力を直接負担している。このような天井構造において、水平方向の力に対する天井構造全体の耐力及び剛性を更に向上させるためには、例えば、吊ボルト等を補強するための補強材を別途設けたり、吊ボルト等の断面寸法を大きくしたりする手段が考えられる。   By the way, in the conventional ceiling structure, the lower end portion of the brace material is directly attached to the suspension bolt, the field edge or the field edge receiver (hereinafter referred to as “suspending bolt”). It directly bears the horizontal force. In such a ceiling structure, in order to further improve the yield strength and rigidity of the entire ceiling structure with respect to horizontal force, for example, a reinforcing material for reinforcing the suspension bolt or the like is separately provided, or the cross-sectional dimensions of the suspension bolt or the like are provided. It is possible to increase the size of the image.

ところが、補強材を別途設けた場合には、部品点数が増加してコストが嵩むという問題が生じる一方、吊ボルト等の断面形状を大きくした場合には、天井構造の重量が嵩んでしまい、水平方向の力が増大するという問題が生じるため、簡易な構造で水平方向の力に対する天井構造全体の耐力及び剛性を更に向上させたいという要望があった。   However, when the reinforcing material is provided separately, there is a problem that the number of parts increases and the cost increases. On the other hand, when the cross-sectional shape of the suspension bolt or the like is increased, the weight of the ceiling structure is increased and the horizontal structure is increased. Since there is a problem that the force in the direction increases, there has been a desire to further improve the proof stress and rigidity of the entire ceiling structure against the force in the horizontal direction with a simple structure.

本発明は、かかる観点から創案されたものであり、簡易な構造で水平方向の力に対する耐力及び剛性が向上する天井構造およびブレース材と天井仕上板の固定金具を提供することを課題とする。   The present invention has been developed from such a viewpoint, and it is an object of the present invention to provide a ceiling structure that has a simple structure and has improved proof strength and rigidity against a horizontal force, and a brace material and a fixture for a ceiling finishing plate.

本発明に係る天井構造は、上部構造体から垂設された吊ボルトと、前記吊ボルトに吊り下げ支持された天井下地材と、前記天井下地材に取り付けられて、天井面を構成する天井仕上板と、前記上部構造体及び前記吊ボルトの上端部のいずれか一方と前記天井仕上板との間に斜めに架け渡されるブレース材と、前記天井仕上板と前記ブレース材とを固定する固定金具と、を備えた天井構造であって、前記固定金具は、前記天井仕上板の上側に配置され、前記ブレース材の下端部が固定される上側固定部材と、前記天井仕上板の下側に配置される下側固定部材と、前記上側固定部材と前記下側固定部材との間に前記天井仕上板を挟んだ状態で、前記天井仕上板と前記上側固定部材と前記下側固定部材とを一体的に締め付けて固定する締結部材と、を有することを特徴とする。   A ceiling structure according to the present invention includes a suspension bolt suspended from an upper structure, a ceiling foundation material suspended from and supported by the suspension bolt, and a ceiling finish that is attached to the ceiling foundation material and constitutes a ceiling surface A plate, a brace material that is slanted between one of the upper structure and the upper end of the suspension bolt, and the ceiling finishing plate; and a fixing bracket that fixes the ceiling finishing plate and the brace material And the fixing bracket is arranged on the upper side of the ceiling finishing plate, and is arranged on the lower side of the ceiling finishing plate, and an upper fixing member to which a lower end portion of the brace material is fixed. The ceiling finishing plate, the upper fixing member, and the lower fixing member are integrated in a state where the ceiling finishing plate is sandwiched between the lower fixing member and the upper fixing member and the lower fixing member. A fastening member that is tightened and fixed, Characterized in that it has.

従来の天井構造は、天井仕上板に水平方向の力を負担させない構成であったが、本発明の天井構造は、ブレース材の下端部が固定部材を介して天井仕上板に取り付けられる構成としたことにより、吊ボルト等とブレース材に加えて、天井仕上板にも水平方向の力を直接負担させることができるため、その分天井構造全体の耐力及び剛性が向上する。
つまり、本発明によれば、従来から備えられている天井仕上板に水平方向の力を負担させるため、補強材を別途設けたり、吊ボルト等の断面寸法を大きくしたりする必要がなくなり、コストが嵩むという問題や水平方向の力が増大するという問題が生じない。
したがって、簡易な構造（手法）で水平方向の力に対する天井構造全体の耐力及び剛性を向上させることができる。 The conventional ceiling structure has a configuration that does not impose a horizontal force on the ceiling finishing plate, but the ceiling structure of the present invention has a configuration in which the lower end portion of the brace material is attached to the ceiling finishing plate via a fixing member. Thus, in addition to the suspension bolts and the brace material, a horizontal force can be directly borne on the ceiling finishing plate, so that the proof stress and rigidity of the entire ceiling structure are improved accordingly.
That is, according to the present invention, it is not necessary to separately provide a reinforcing material or to increase the cross-sectional dimensions of the suspension bolts, etc., because the conventional ceiling finishing board is subjected to a horizontal force. This does not cause the problem of increasing the size or the force in the horizontal direction.
Therefore, it is possible to improve the proof stress and rigidity of the entire ceiling structure against a horizontal force with a simple structure (method).

また、上側固定部材と下側固定部材との間に天井仕上板を挟んだ状態で、締結部材により天井仕上板と上側固定部材と下側固定部材とを一体的に締め付けて固定することにより、天井仕上板と固定金具とを強固に一体化することが可能となり、ひいては、天井仕上板とブレース材とを強固に一体化できるため、水平方向の力を天井仕上板に確実に伝達させることが可能となり、天井構造全体の耐力及び剛性を著しく向上させることができる。   Further, in a state where the ceiling finishing plate is sandwiched between the upper fixing member and the lower fixing member, the ceiling finishing plate, the upper fixing member and the lower fixing member are integrally tightened and fixed by the fastening member, It is possible to firmly integrate the ceiling finishing board and the fixing bracket, and as a result, the ceiling finishing board and the brace material can be firmly integrated, so that the horizontal force can be reliably transmitted to the ceiling finishing board. It becomes possible, and the proof stress and rigidity of the whole ceiling structure can be remarkably improved.

また、本発明に係る固定金具は、上部構造体から垂設された吊ボルトと、前記吊ボルトに吊り下げ支持された天井下地材と、前記天井下地材に取り付けられて、天井面を構成する天井仕上板と、前記上部構造体及び前記吊ボルトの上端部のいずれか一方と前記天井仕上板との間に斜めに架け渡されるブレース材と、を備えた天井構造において、前記天井仕上板と前記ブレース材とを固定する固定金具であって、前記天井仕上板の上側に配置され、前記ブレース材の下端部が固定される上側固定部材と、前記天井仕上板の下側に配置される下側固定部材と、前記上側固定部材と前記下側固定部材との間に前記天井仕上板を挟んだ状態で、前記天井仕上板と前記上側固定部材と前記下側固定部材とを一体的に締め付けて固定する締結部材と、を有することを特徴とする。   The fixing bracket according to the present invention comprises a suspension bolt suspended from an upper structure, a ceiling base material suspended from and supported by the suspension bolt, and a ceiling base material attached to the ceiling base material. A ceiling structure comprising: a ceiling finishing board; and a brace material that is obliquely bridged between any one of the upper structure and the upper end of the suspension bolt and the ceiling finishing board. A fixing bracket for fixing the brace material, the upper fixing member disposed on the upper side of the ceiling finishing plate, to which the lower end portion of the brace material is fixed, and the lower side disposed on the lower side of the ceiling finishing plate. The ceiling finishing plate, the upper fixing member, and the lower fixing member are integrally tightened in a state where the ceiling finishing plate is sandwiched between the side fixing member, and the upper fixing member and the lower fixing member. Fastening members to be fixed And wherein the Rukoto.

従来の天井構造は、天井仕上板に水平方向の力を負担させない構成であったが、本発明の固定金具を用いて、ブレース材の下端部を天井仕上板に取り付ける構成とすることにより、吊ボルト等とブレース材に加えて、天井仕上板にも水平方向の力を直接負担させることができるため、その分天井構造全体の耐力及び剛性が向上する。
つまり、本発明の固定金具を用いることにより、従来から備えられている天井仕上板に水平方向の力を負担させるため、補強材を別途設けたり、吊ボルト等の断面寸法を大きくしたりする必要がなくなり、コストが嵩むという問題や水平方向の力が増大するという問題が生じない。
したがって、簡易な構造（手法）で水平方向の力に対する天井構造全体の耐力及び剛性を向上させることができる。 The conventional ceiling structure has a structure that does not impose a horizontal force on the ceiling finishing board. However, by using the fixing bracket of the present invention, the lower end of the brace material is attached to the ceiling finishing board. In addition to the bolts and the brace material, the ceiling finishing plate can be directly subjected to a horizontal force, so that the strength and rigidity of the entire ceiling structure are improved accordingly.
In other words, by using the fixing bracket of the present invention, it is necessary to separately provide a reinforcing material or to increase the cross-sectional dimensions of the suspension bolts, etc., in order to load a horizontal force on the ceiling finishing plate provided conventionally. This eliminates the problem of increased costs and the problem of increased horizontal force.
Therefore, it is possible to improve the proof stress and rigidity of the entire ceiling structure against a horizontal force with a simple structure (method).

また、上側固定部材と下側固定部材との間に天井仕上板を挟んだ状態で、締結部材により天井仕上板と上側固定部材と下側固定部材とを一体的に締め付けて固定することにより、天井仕上板と固定金具とを強固に一体化することが可能となり、ひいては、天井仕上板とブレース材とを強固に一体化できるため、水平方向の力を天井仕上板に確実に伝達させることが可能となり、天井構造全体の耐力及び剛性を著しく向上させることができる。   Further, in a state where the ceiling finishing plate is sandwiched between the upper fixing member and the lower fixing member, the ceiling finishing plate, the upper fixing member and the lower fixing member are integrally tightened and fixed by the fastening member, It is possible to firmly integrate the ceiling finishing board and the fixing bracket, and as a result, the ceiling finishing board and the brace material can be firmly integrated, so that the horizontal force can be reliably transmitted to the ceiling finishing board. It becomes possible, and the proof stress and rigidity of the whole ceiling structure can be remarkably improved.

本発明によれば、簡易な構造で水平方向の力に対する耐力及び剛性が向上する天井構造およびブレース材と天井仕上板の固定金具を提供することができる。   According to the present invention, it is possible to provide a ceiling structure that has a simple structure and has improved proof stress and rigidity against a force in the horizontal direction, and a brace material and a fixture for a ceiling finish plate.

実施形態に係る天井構造の斜視図である。It is a perspective view of the ceiling structure concerning an embodiment. 実施形態に係る天井構造の側面図である。It is a side view of the ceiling structure concerning an embodiment. 図２の部分拡大図である。FIG. 3 is a partially enlarged view of FIG. 2. 実施形態に係る天井構造の固定金具の構成を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the fixing bracket of the ceiling structure which concerns on embodiment.

本発明の実施形態に係る天井構造について図面を参照して詳細に説明する。説明において、同一の要素には同一の符号を付し、重複する説明は省略する。   A ceiling structure according to an embodiment of the present invention will be described in detail with reference to the drawings. In the description, the same elements are denoted by the same reference numerals, and redundant description is omitted.

図１は、実施形態に係る天井構造の斜視図であり、図２は、実施形態に係る天井構造の側面図である。図３は、図２の部分拡大図であり、図４は、実施形態に係る天井構造の固定金具の構成を示す分解斜視図である。
図１及び図２に示すように、天井構造１００は、上部構造体である上階床スラブＳから垂設された吊ボルト１と、吊ボルト１に吊り下げ支持された天井下地材２と、天井下地材２に取り付けられて天井面を構成する天井仕上板３と、上階床スラブＳと天井仕上板３との間に斜めに架け渡される一対のブレース材４，４と、天井仕上板３とブレース材４とを固定する固定金具５と、を備えて構成されている。 FIG. 1 is a perspective view of a ceiling structure according to the embodiment, and FIG. 2 is a side view of the ceiling structure according to the embodiment. FIG. 3 is a partially enlarged view of FIG. 2, and FIG. 4 is an exploded perspective view showing a configuration of a fixing bracket of the ceiling structure according to the embodiment.
As shown in FIGS. 1 and 2, the ceiling structure 100 includes a suspension bolt 1 suspended from an upper floor slab S that is an upper structure, a ceiling base material 2 suspended and supported by the suspension bolt 1, and A ceiling finishing board 3 that is attached to the ceiling base material 2 and constitutes a ceiling surface, a pair of brace members 4 and 4 that are slanted between the upper floor slab S and the ceiling finishing board 3, and a ceiling finishing board 3 and a brace 5 for fixing the brace material 4.

吊ボルト１は、図２に示すように、上階床スラブＳに対して天井下地材２を吊り下げ支持するための金属製の部材である。吊ボルト１は、上下方向に延在しており、その外周面にネジ加工が施されている。吊ボルト１の上端部は、上階床スラブＳに埋設された接合金具（図示省略）に固定されている。吊ボルト１は、図１に示すように、縦横方向に互いに間隔を空けて配置されている。   As shown in FIG. 2, the suspension bolt 1 is a metal member for suspending and supporting the ceiling base material 2 from the upper floor slab S. The suspension bolt 1 extends in the vertical direction, and the outer peripheral surface thereof is threaded. The upper end portion of the suspension bolt 1 is fixed to a joint fitting (not shown) embedded in the upper floor slab S. As shown in FIG. 1, the suspension bolts 1 are arranged at intervals in the vertical and horizontal directions.

天井下地材２は、図２に示すように、上階床スラブＳから下方に離間した位置に配置され、天井仕上板３を保持するための金属製の部材である。天井下地材２は、図１に示すように、野縁受け２１と、野縁受け２１の下方で野縁受け２１に交差（直交）して配置される野縁２２と、から構成される。本実施形態では、複数の野縁受け２１，２１と複数の野縁２２，２２とが、交差箇所で公知の接合金具２３を介して連結されることで、格子状に枠組みされた天井構造枠が構築されている。   As shown in FIG. 2, the ceiling base material 2 is a metal member that is disposed at a position spaced downward from the upper floor slab S and holds the ceiling finishing plate 3. As shown in FIG. 1, the ceiling base material 2 includes a field edge receiver 21, and a field edge 22 that is arranged below the field edge receiver 21 so as to intersect (orthogonally) the field edge receiver 21. In the present embodiment, a plurality of field receivers 21 and 21 and a plurality of field edges 22 and 22 are connected to each other at a crossing point via a known joint metal fitting 23 to form a ceiling structure frame that is framed in a lattice shape. Has been built.

野縁受け２１は、吊ボルト１に吊り下げ支持される長尺の部材であり、断面視コ字状のＣ形チャンネルで構成されている。野縁受け２１は、公知のハンガー２４を介して吊ボルト１の下端部に固定されている。野縁受け２１は、互いに間隔を空けて平行に配置されている。   The field edge receiver 21 is a long member that is suspended and supported by the suspension bolt 1, and is configured by a C-shaped channel having a U-shaped cross-sectional view. The field edge receiver 21 is fixed to the lower end of the suspension bolt 1 via a known hanger 24. The field edge receivers 21 are arranged in parallel with a space therebetween.

野縁２２は、天井仕上板３が取り付けられる長尺の部材であり、断面視コ字状のＣ形チャンネルで構成されている。野縁２２は、互いに間隔を空けて平行に配置されている。   The field edge 22 is a long member to which the ceiling finishing plate 3 is attached, and is composed of a C-shaped channel having a U-shaped cross-sectional view. The field edges 22 are arranged in parallel with a space therebetween.

天井仕上板３は、天井面を構成する金属製の部材である。天井仕上板３は、平面視矩形状を呈する板状の部材であり、縦横方向に複数並設される。天井仕上板３は、野縁２２の下面に図示しない取付金具を介して固定されている。天井仕上板３の上面には、図３に示すように、上方に向かって突出するリブ３１が形成されている。リブ３１は、互いに間隔を空けて平行に設けられている。隣り合うリブ３１，３１の間には、下方に凹状の溝部３２が形成されている。天井仕上板３のうち、後記する固定金具５を取り付ける部分には、図４に示すように、溝部３２の底面に開口する複数の（本実施形態では８つの）ボルト挿通孔３ａ，３ａが貫通形成されている。なお、天井仕上板３の野縁２２に対する固定方法として、ビス等を用いてもよい。   The ceiling finishing plate 3 is a metal member that constitutes the ceiling surface. The ceiling finishing board 3 is a plate-like member having a rectangular shape in plan view, and a plurality of ceiling finishing boards 3 are arranged in the vertical and horizontal directions. The ceiling finishing board 3 is fixed to the lower surface of the field edge 22 via a mounting bracket (not shown). As shown in FIG. 3, a rib 31 protruding upward is formed on the upper surface of the ceiling finishing plate 3. The ribs 31 are provided in parallel with a space therebetween. A concave groove 32 is formed between the adjacent ribs 31, 31 below. As shown in FIG. 4, a plurality of (eight in the present embodiment) bolt insertion holes 3 a and 3 a that open to the bottom surface of the groove portion 32 pass through the portion of the ceiling finishing plate 3 to which the fixing bracket 5 to be described later is attached. Is formed. In addition, you may use a screw etc. as a fixing method with respect to the field edge 22 of the ceiling finishing board 3. FIG.

図１に戻り、ブレース材４は、野縁受け２１と野縁２２とから構築される天井構造枠、吊ボルト１、及び天井仕上板３の揺れを抑制するための金属製の部材である。ブレース材４は、断面視コ字状のＣ形チャンネルで構成され、野縁受け２１に交差（直交）する方向に配置されている。一対のブレース材４，４は、図２に示すように、水平面に対して傾斜しており、上階床スラブＳと天井仕上板３との間にＶ字状に架け渡されている。換言すると、一対のブレース材４，４は、天井仕上板３から上階床スラブＳに向かうにつれて互いに離間するように配置されている。ブレース材４の上端部は、接合金具４１を介して上階床スラブＳに固定され、下端部は、固定金具５を介して天井仕上板３に固定されている。ブレース材４の下端部には、図４に示すように、ボルト５３ａが挿通されるボルト挿通孔４ａが貫通形成されている。なお、ブレース材４と水平面とがなす角度は、適宜設定される。   Returning to FIG. 1, the brace material 4 is a metal member for suppressing shaking of the ceiling structural frame, the suspension bolt 1, and the ceiling finishing plate 3 constructed from the field edge receiver 21 and the field edge 22. The brace material 4 is formed of a C-shaped channel having a U-shaped cross-sectional view, and is disposed in a direction intersecting (orthogonal) with the field edge receiver 21. As shown in FIG. 2, the pair of brace members 4 and 4 are inclined with respect to the horizontal plane, and are bridged in a V shape between the upper floor slab S and the ceiling finishing plate 3. In other words, the pair of brace members 4 and 4 are arranged so as to be separated from each other toward the upper floor slab S from the ceiling finishing plate 3. The upper end portion of the brace material 4 is fixed to the upper floor slab S via the joint fitting 41, and the lower end portion is fixed to the ceiling finishing plate 3 via the fixing bracket 5. As shown in FIG. 4, a bolt insertion hole 4 a through which a bolt 53 a is inserted is formed in the lower end portion of the brace material 4. In addition, the angle which the brace material 4 and a horizontal surface make is set suitably.

固定金具５は、天井仕上板３とブレース材４とを固定するための手段である。固定金具５は、図１に示すように、野縁受け２１と野縁２２とで区画された空間内に、野縁受け２１及び野縁２２と干渉しないように配置されている。
固定金具５は、図４に示すように、天井仕上板３の上側に配置される上側固定部材５１と、天井仕上板３の下側に配置される下側固定部材５２と、ブレース材４と上側固定部材５１とを一体的に締め付けて固定するとともに、天井仕上板３と上側固定部材５１と下側固定部材５２とを一体的に締め付けて固定する締結部材５３と、を有している。 The fixing metal 5 is a means for fixing the ceiling finishing plate 3 and the brace material 4. As shown in FIG. 1, the fixing bracket 5 is arranged in a space defined by the field edge receiver 21 and the field edge 22 so as not to interfere with the field edge receiver 21 and the field edge 22.
As shown in FIG. 4, the fixing bracket 5 includes an upper fixing member 51 disposed on the upper side of the ceiling finishing plate 3, a lower fixing member 52 disposed on the lower side of the ceiling finishing plate 3, and the brace material 4. The upper fixing member 51 is integrally tightened and fixed, and the ceiling finishing plate 3, the upper fixing member 51, and the lower fixing member 52 are integrally tightened and fixed.

上側固定部材５１は、金属製の高耐力部材である。上側固定部材５１は、天井仕上板３に載置される基部５１１と、ブレース材４の下端部が取り付けられる取付部５１２と、取付部５１２を補強する複数のリブ５１３，５１３と、を有している。   The upper fixing member 51 is a metal high strength member. The upper fixing member 51 includes a base portion 511 placed on the ceiling finishing plate 3, a mounting portion 512 to which the lower end portion of the brace material 4 is attached, and a plurality of ribs 513 and 513 that reinforce the mounting portion 512. ing.

基部５１１は、平面視矩形状の底壁部５１１ａと、底壁部５１１ａの短手方向両端から上方に向かって延出する一対のフランジ部５１１ｂ，５１１ｂと、から構成されている。底壁部５１１ａには、ボルト５３ａが挿通される複数の（本実施形態では８つの）ボルト挿通孔５１１ｃ，５１１ｃが貫通形成されている（図４では２つのみ図示）。なお、フランジ部５１１ｂは、省略してもよい。   The base portion 511 includes a bottom wall portion 511a having a rectangular shape in plan view, and a pair of flange portions 511b and 511b extending upward from both ends in the short side direction of the bottom wall portion 511a. A plurality of (eight in this embodiment) bolt insertion holes 511c and 511c through which the bolts 53a are inserted are formed through the bottom wall portion 511a (only two are shown in FIG. 4). The flange portion 511b may be omitted.

取付部５１２は、平面視十字状の部材であり、底壁部５１１ａの上面から立ち上がり、基部５１１の長手方向に沿って延在する壁状の第１の立ち上がり部５１２ａと、底壁部５１１ａの上面から立ち上がり、第１の立ち上がり部５１２ａに交差（直交）する壁状の第２の立ち上がり部５１２ｂと、から構成されている。第１の立ち上がり部５１２ａ及び第２の立ち上がり部５１２ｂの両端上側には、ボルト５３ａが挿通されるボルト挿通孔５１２ｃ，５１２ｄが貫通形成されている。第１の立ち上がり部５１２ａ及び第２の立ち上がり部５１２ｂの下面は、底壁部５１１ａの上面に溶接で固定されるとともに、第２の立ち上がり部５１２ｂの両端面下側は、基部５１１のフランジ部５１１ｂの内面に溶接で固定されている。   The mounting portion 512 is a cross-shaped member in plan view, and rises from the upper surface of the bottom wall portion 511a and extends along the longitudinal direction of the base portion 511, and the wall-like first rising portion 512a and the bottom wall portion 511a A wall-like second rising portion 512b that rises from the upper surface and intersects (orthogonally) the first rising portion 512a. Bolt insertion holes 512c and 512d through which the bolts 53a are inserted are formed on both upper sides of the first rising portion 512a and the second rising portion 512b. The lower surfaces of the first rising portion 512a and the second rising portion 512b are fixed to the upper surface of the bottom wall portion 511a by welding, and the lower sides of both end surfaces of the second rising portion 512b are flange portions 511b of the base portion 511. It is fixed to the inner surface of the steel by welding.

なお、本実施形態では、ブレース材４を野縁受け２１の延在方向と交差する方向のみに配置したが、ブレース材４を野縁受け２１の延在方向と交差する方向及び野縁受け２１の延在方向と平行な方向の二方向に配置することがより好ましい。この場合、第１の立ち上がり部５１２ａに、一対のブレース材４，４の下端部を取り付けるとともに、第２の立ち上がり部５１２ｂに、他の一対のブレース材４，４の下端部を取り付けることになる。或いは、天井仕上板３に２つの固定金具５，５を取り付けて、一方の固定金具５の第１の立ち上がり部５１２ａに、一対のブレース材４，４を取り付けるとともに、他方の固定金具５の第２の立ち上がり部５１２ｂに、他の一対のブレース材４，４を取り付けてもよい。   In the present embodiment, the brace material 4 is disposed only in the direction intersecting with the extending direction of the field receiver 21, but the direction in which the brace material 4 intersects with the extending direction of the field receiver 21 and the field receiver 21. It is more preferable to arrange in two directions parallel to the extending direction. In this case, the lower end portions of the pair of brace materials 4 and 4 are attached to the first rising portion 512a, and the lower end portions of the other pair of brace materials 4 and 4 are attached to the second rising portion 512b. . Alternatively, the two fixing brackets 5, 5 are attached to the ceiling finishing plate 3, and the pair of brace members 4, 4 are attached to the first rising portion 512 a of one fixing bracket 5, and the second fixing bracket 5 Another pair of brace materials 4 and 4 may be attached to the two rising portions 512b.

リブ５１３は、側面視三角形状の部材であり、第１の立ち上がり部５１２ａ及び第２の立ち上がり部５１２ｂの両端部をその厚さ方向両側から挟みこむように設けられている（図４では一部のリブのみ図示）。リブ５１３は、第１の立ち上がり部５１２ａと底壁部５１１ａに跨るように設けられ、第１の立ち上がり部５１２ａと底壁部５１１ａとに溶接で固定されている。また、リブ５１３は、第２の立ち上がり部５１２ｂと底壁部５１１ａに跨るように設けられ、第２の立ち上がり部５１２ｂと底壁部５１１ａとに溶接で固定されている。   The rib 513 is a triangular member in side view, and is provided so as to sandwich both end portions of the first rising portion 512a and the second rising portion 512b from both sides in the thickness direction (in FIG. Only ribs are shown). The rib 513 is provided so as to straddle the first rising portion 512a and the bottom wall portion 511a, and is fixed to the first rising portion 512a and the bottom wall portion 511a by welding. The rib 513 is provided so as to straddle the second rising portion 512b and the bottom wall portion 511a, and is fixed to the second rising portion 512b and the bottom wall portion 511a by welding.

下側固定部材５２は、金属製の高耐力部材である。下側固定部材５２は、図４に示すように、平面視矩形状を呈する板状の部材であり、ボルト５３ａが挿通される複数の（本実施形態では８つの）ボルト挿通孔５２ａ，５２ａが貫通形成されている。天井仕上板３のボルト挿通孔３ａと、上側固定部材５１のボルト挿通孔５１１ｃと、下側固定部材５２のボルト挿通孔５２ａとは、上下に対応する位置に形成されている。上側固定部材５１及び下側固定部材５２は、図３に示すように、天井仕上板３を上下から挟みこむように配置されている。   The lower fixing member 52 is a metal high strength member. As shown in FIG. 4, the lower fixing member 52 is a plate-like member having a rectangular shape in plan view, and has a plurality of (eight in this embodiment) bolt insertion holes 52 a and 52 a through which the bolts 53 a are inserted. It is formed through. The bolt insertion hole 3a of the ceiling finishing plate 3, the bolt insertion hole 511c of the upper fixing member 51, and the bolt insertion hole 52a of the lower fixing member 52 are formed at positions corresponding to the top and bottom. As shown in FIG. 3, the upper fixing member 51 and the lower fixing member 52 are arranged so as to sandwich the ceiling finishing plate 3 from above and below.

締結部材５３は、図４に示すように、ボルト５３ａ及びナット５３ｂで構成されている。本実施形態では、ブレース材４のボルト挿通孔４ａと上側固定部材５１のボルト挿通孔５１２ｃとにボルト５３ａを挿通し、ナット５３ｂを締め付けることにより、ブレース材４と上側固定部材５１とが一体的に固定される。また、天井仕上板３のボルト挿通孔３ａと上側固定部材５１のボルト挿通孔５１１ｃと下側固定部材５２のボルト挿通孔５２ａとにボルト５３ａを挿通し、ナット５３ｂを締め付けることにより、天井仕上板３と上側固定部材５１と下側固定部材５２とが一体的に固定される。   As shown in FIG. 4, the fastening member 53 includes a bolt 53a and a nut 53b. In this embodiment, the brace material 4 and the upper fixing member 51 are integrated by inserting the bolt 53a through the bolt insertion hole 4a of the brace material 4 and the bolt insertion hole 512c of the upper fixing member 51 and tightening the nut 53b. Fixed to. Further, the ceiling finishing plate is formed by inserting the bolt 53a through the bolt insertion hole 3a of the ceiling finishing plate 3, the bolt insertion hole 511c of the upper fixing member 51, and the bolt insertion hole 52a of the lower fixing member 52, and tightening the nut 53b. 3, the upper fixing member 51 and the lower fixing member 52 are integrally fixed.

本発明の実施形態に係る天井構造１００は、基本的には以上のように構成されるものであり、次に、図４を参照して、天井仕上板３とブレース材４と固定金具５の施工手順について説明する。   The ceiling structure 100 according to the embodiment of the present invention is basically configured as described above. Next, referring to FIG. 4, the ceiling finishing plate 3, the brace material 4, and the fixing bracket 5 are provided. The construction procedure will be described.

はじめに、天井仕上板３のボルト挿通孔３ａと、上側固定部材５１のボルト挿通孔５１１ｃと、下側固定部材５２のボルト挿通孔５２ａとが連通するように、天井仕上板３を上下から挟みこむようにして上側固定部材５１及び下側固定部材５２を配置する。
そして、下側固定部材５２のボルト挿通孔５２ａと、天井仕上板３のボルト挿通孔３ａと、上側固定部材５１のボルト挿通孔５１１ｃとにボルト５３ａを挿通した後、ボルト５３ａの先端にナット５３ｂを締め付ける。
以上の施工により、天井仕上板３と上側固定部材５１と下側固定部材５２とが一体的に固定される。 First, the ceiling finishing board 3 is sandwiched from above and below so that the bolt insertion hole 3a of the ceiling finishing board 3 communicates with the bolt insertion hole 511c of the upper fixing member 51 and the bolt insertion hole 52a of the lower fixing member 52. Thus, the upper fixing member 51 and the lower fixing member 52 are arranged.
Then, after the bolt 53a is inserted into the bolt insertion hole 52a of the lower fixing member 52, the bolt insertion hole 3a of the ceiling finishing plate 3, and the bolt insertion hole 511c of the upper fixing member 51, the nut 53b is inserted at the tip of the bolt 53a. Tighten.
With the above construction, the ceiling finishing plate 3, the upper fixing member 51, and the lower fixing member 52 are integrally fixed.

次に、ブレース材４のボルト挿通孔４ａと、上側固定部材５１のボルト挿通孔５１２ｃとが連通するように、ブレース材４と上側固定部材５１との位置合わせを行う。なお、この位置合わせを行う前に、予めブレース材４の上端部を、接合金具４１を介して上階床スラブＳに固定しておく。
そして、ブレース材４のボルト挿通孔４ａと、上側固定部材５１のボルト挿通孔５１２ｃとにボルト５３ａを挿通した後、ボルト５３ａの先端にナット５３ｂを締め付ける。
以上の施工により、ブレース材４と上側固定部材５１とが一体的に固定されるとともに、天井仕上板３とブレース材４とが固定金具５を介して一体的に固定される。 Next, the brace material 4 and the upper fixing member 51 are aligned so that the bolt insertion hole 4a of the brace material 4 and the bolt insertion hole 512c of the upper fixing member 51 communicate with each other. In addition, before performing this alignment, the upper end part of the brace material 4 is previously fixed to the upper floor slab S via the joining bracket 41.
Then, after the bolt 53a is inserted into the bolt insertion hole 4a of the brace material 4 and the bolt insertion hole 512c of the upper fixing member 51, the nut 53b is tightened to the tip of the bolt 53a.
With the above construction, the brace material 4 and the upper fixing member 51 are integrally fixed, and the ceiling finishing plate 3 and the brace material 4 are integrally fixed via the fixing bracket 5.

以上説明した本実施形態に係る天井構造１００よれば、従来の技術（例えば、特許文献１参照）と比較して、以下のような優れた作用効果を奏する。
すなわち、従来の天井構造は、天井仕上板に水平方向の力を負担させない構成であったが、本実施形態の天井構造１００は、ブレース材４の下端部が固定金具５を介して天井仕上板３に取り付けられる構成としたことにより、吊ボルト１、天井下地材２及びブレース材４に加えて、天井仕上板３にも水平方向の力を直接負担させることができるため、その分天井構造１００全体の耐力及び剛性が向上する。
つまり、本実施形態によれば、従来から備えられている天井仕上板３に水平方向の力を負担させるため、補強材を別途設けたり、吊ボルト１や天井下地材２の断面寸法を大きくしたりする必要がなくなり、コストが嵩むという問題や水平方向の力が増大するという問題が生じない。
したがって、簡易な構造（手法）で水平方向の力に対する天井構造１００全体の耐力及び剛性を向上させることができる。 According to the ceiling structure 100 according to the present embodiment described above, the following excellent effects can be obtained as compared with the conventional technique (for example, see Patent Document 1).
That is, the conventional ceiling structure has a configuration that does not impose a horizontal force on the ceiling finishing board. However, in the ceiling structure 100 of this embodiment, the lower end of the brace material 4 is connected to the ceiling finishing board via the fixing bracket 5. 3, in addition to the suspension bolt 1, the ceiling base material 2, and the brace material 4, the ceiling finishing plate 3 can be directly burdened with a horizontal force. Overall yield strength and rigidity are improved.
In other words, according to the present embodiment, in order to load the ceiling finishing plate 3 conventionally provided with a horizontal force, a reinforcing material is separately provided, or the cross-sectional dimensions of the suspension bolt 1 and the ceiling base material 2 are increased. This eliminates the problem of increasing costs and the problem of increased horizontal force.
Therefore, it is possible to improve the proof stress and rigidity of the entire ceiling structure 100 with respect to the horizontal force with a simple structure (method).

また、上側固定部材５１と下側固定部材５２との間に天井仕上板３を挟んだ状態で、締結部材５３が天井仕上板３と上側固定部材５１と下側固定部材５２とを一体的に締め付けて固定することにより、天井仕上板３と固定金具５とを強固に一体化することが可能となり、ひいては、天井仕上板３とブレース材４とを強固に一体化できるため、水平方向の力を天井仕上板３に確実に伝達させることが可能となり、天井構造１００全体の耐力及び剛性を著しく向上させることができる。   The fastening member 53 integrally connects the ceiling finishing plate 3, the upper fixing member 51, and the lower fixing member 52 with the ceiling finishing plate 3 sandwiched between the upper fixing member 51 and the lower fixing member 52. By tightening and fixing, it is possible to firmly integrate the ceiling finishing plate 3 and the fixing bracket 5, and as a result, the ceiling finishing plate 3 and the brace material 4 can be firmly integrated. Can be reliably transmitted to the ceiling finishing plate 3, and the proof stress and rigidity of the entire ceiling structure 100 can be significantly improved.

以上、本発明の好適な実施形態について、図面を参照して説明したが、本発明はこの実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲で適宜変更することができる。   The preferred embodiment of the present invention has been described above with reference to the drawings. However, the present invention is not limited to this embodiment, and can be changed as appropriate without departing from the gist of the present invention.

本実施形態では、上部構造体として上階床スラブＳを例示したが、これに限定されるものではなく、例えば、上部構造体として上階の梁や屋根下地等に吊ボルト１の上端部を固定してもよい。   In the present embodiment, the upper floor slab S is exemplified as the upper structure. However, the upper floor slab S is not limited to this, and for example, the upper end of the suspension bolt 1 is attached to the upper floor beam, roof base, or the like as the upper structure. It may be fixed.

また、本実施形態の野縁受け２１及び野縁２２は、断面視コ字状のＣ形チャンネルで構成されているが、これに限定されるものではなく、例えば、角パイプ等で構成されてもよい。   Further, the field edge receiver 21 and the field edge 22 of the present embodiment are configured by a C-shaped channel having a U-shaped cross-sectional view, but are not limited thereto, and are configured by, for example, a square pipe or the like. Also good.

また、本実施形態の天井仕上板３は、金属材料で形成されているが、これに限定されるものではなく、例えば、石膏系材料、岩綿系材料、木質材料等で形成されてもよい。   Moreover, although the ceiling finishing board 3 of this embodiment is formed with the metal material, it is not limited to this, For example, you may form with a gypsum type material, a rock wool type material, a woody material, etc. .

また、本実施形態の天井仕上板３は、リブ３１を有する凹凸状に形成されているが、これに限定されるものではなく、例えば、リブ３１を有しない平板状に形成されてもよい。   Moreover, although the ceiling finishing board 3 of this embodiment is formed in the uneven | corrugated shape which has the rib 31, it is not limited to this, For example, you may form in the flat form which does not have the rib 31.

また、本実施形態では、ブレース材４の上端部が上階床スラブＳに固定されているが、これに限定されるものではなく、例えば、ブレース材４の上端部が公知の取付金具を介して吊ボルト１の上端部に固定されてもよい。   Moreover, in this embodiment, although the upper end part of the brace material 4 is being fixed to the upper floor slab S, it is not limited to this, For example, the upper end part of the brace material 4 is via a well-known mounting bracket. It may be fixed to the upper end of the suspension bolt 1.

また、吊ボルト１の数、野縁受け２１の数、野縁２２の数、天井仕上板３のボルト挿通孔３ａの数、ブレース材４の数、上側固定部材５１のボルト挿通孔５１１ｃの数、下側固定部材５２のボルト挿通孔５２ａの数等は適宜変更してよい。   Further, the number of the suspension bolts 1, the number of the field edge receivers 21, the number of the field edges 22, the number of the bolt insertion holes 3 a of the ceiling finishing plate 3, the number of the brace members 4, and the number of the bolt insertion holes 511 c of the upper fixing member 51. The number of bolt insertion holes 52a of the lower fixing member 52 may be changed as appropriate.

また、本実施形態の一対のブレース材４，４は、Ｖ字状に配置されているが、これに限定されることなく、天井裏に配置される設備機器の干渉等によりブレース材４をＶ字状に配置できない場合には、例えば、ブレース材４，４を逆ハの字状に配置してもよい。この場合、互いに離間した位置に２つの固定金具５，５を配置するとともに、一方の固定金具５に一方のブレース材４の下端部を固定し、他方の固定金具５に他方のブレース材４の下端部を固定する。   In addition, the pair of brace members 4 and 4 according to the present embodiment are arranged in a V shape, but the brace member 4 is not limited to this, and the brace members 4 are V-shaped due to interference of facility equipment arranged on the back of the ceiling. In the case where it cannot be arranged in a letter shape, for example, the brace materials 4 and 4 may be arranged in a reverse letter C shape. In this case, the two fixing brackets 5 and 5 are arranged at positions separated from each other, the lower end portion of one brace material 4 is fixed to one fixing bracket 5, and the other bracing member 4 is fixed to the other fixing bracket 5. Fix the lower end.

また、本実施形態の締結部材５３は、ボルト５３ａ及びナット５３ｂで構成されたが、これに限定されることなく、例えば、ビス等で構成されてもよい。   Moreover, although the fastening member 53 of this embodiment was comprised with the volt | bolt 53a and the nut 53b, it is not limited to this, For example, you may comprise with bis | screw etc.

１００ 天井構造
１ 吊ボルト
２ 天井下地材
２１ 野縁受け
２２ 野縁
３ 天井仕上板
４ ブレース材
５ 固定金具
５１ 上側固定部材
５２ 下側固定部材
５３ 締結部材
５３ａ ボルト
５３ｂ ナット
Ｓ 上階床スラブ（上部構造体） DESCRIPTION OF SYMBOLS 100 Ceiling structure 1 Suspension bolt 2 Ceiling base material 21 Field edge receiver 22 Field edge 3 Ceiling finishing board 4 Brace material 5 Fixing bracket 51 Upper fixing member 52 Lower fixing member 53 Fastening member 53a Bolt 53b Nut S Upper floor slab (upper part) Structure)

Claims (2)

上部構造体から垂設された吊ボルトと、
前記吊ボルトに吊り下げ支持された天井下地材と、
前記天井下地材に取り付けられて、天井面を構成する天井仕上板と、
前記上部構造体及び前記吊ボルトの上端部のいずれか一方と前記天井仕上板との間に斜めに架け渡されるブレース材と、
前記天井仕上板と前記ブレース材とを固定する固定金具と、を備えた天井構造であって、
前記固定金具は、
前記天井仕上板の上側に配置され、前記ブレース材の下端部が固定される上側固定部材と、
前記天井仕上板の下側に配置される下側固定部材と、
前記上側固定部材と前記下側固定部材との間に前記天井仕上板を挟んだ状態で、前記天井仕上板と前記上側固定部材と前記下側固定部材とを一体的に締め付けて固定する締結部材と、を有することを特徴とする天井構造。 Suspension bolts suspended from the upper structure,
A ceiling base material suspended and supported by the suspension bolt;
A ceiling finishing plate attached to the ceiling base material and constituting a ceiling surface;
A brace material that is obliquely bridged between one of the upper structure and the upper end of the suspension bolt and the ceiling finishing plate;
A ceiling structure comprising a fixing bracket for fixing the ceiling finishing plate and the brace material,
The fixing bracket is
An upper fixing member that is disposed on the upper side of the ceiling finishing plate and to which a lower end of the brace material is fixed;
A lower fixing member disposed on the lower side of the ceiling finishing plate;
A fastening member that integrally clamps and fixes the ceiling finishing plate, the upper fixing member, and the lower fixing member in a state where the ceiling finishing plate is sandwiched between the upper fixing member and the lower fixing member. And a ceiling structure characterized by comprising: 上部構造体から垂設された吊ボルトと、前記吊ボルトに吊り下げ支持された天井下地材と、前記天井下地材に取り付けられて、天井面を構成する天井仕上板と、前記上部構造体及び前記吊ボルトの上端部のいずれか一方と前記天井仕上板との間に斜めに架け渡されるブレース材と、を備えた天井構造において、前記天井仕上板と前記ブレース材とを固定する固定金具であって、
前記天井仕上板の上側に配置され、前記ブレース材の下端部が固定される上側固定部材と、
前記天井仕上板の下側に配置される下側固定部材と、
前記上側固定部材と前記下側固定部材との間に前記天井仕上板を挟んだ状態で、前記天井仕上板と前記上側固定部材と前記下側固定部材とを一体的に締め付けて固定する締結部材と、を有することを特徴とする固定金具。 Suspension bolts suspended from the upper structure, a ceiling base material suspended from and supported by the suspension bolt, a ceiling finishing plate attached to the ceiling base material and constituting a ceiling surface, the upper structure, and In a ceiling structure comprising a brace material that is slanted between one of the upper ends of the suspension bolt and the ceiling finishing plate, a fixing bracket that fixes the ceiling finishing plate and the brace material. There,
An upper fixing member that is disposed on the upper side of the ceiling finishing plate and to which a lower end of the brace material is fixed;
A lower fixing member disposed on the lower side of the ceiling finishing plate;
A fastening member that integrally clamps and fixes the ceiling finishing plate, the upper fixing member, and the lower fixing member in a state where the ceiling finishing plate is sandwiched between the upper fixing member and the lower fixing member. And a fixing bracket.
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