JP2022165195A

JP2022165195A - Joint structure of structural members

Info

Publication number: JP2022165195A
Application number: JP2021070445A
Authority: JP
Inventors: 寛増子; Hiroshi Masuko; 晃一エキ田; Koichi Ekida; 邦夫 ▲高▼林; Kunio Takabayashi; 真理恵齋藤; Marina Saito; 浩幸青木; Hiroyuki Aoki; 佳伸熊川; Yoshinobu Kumakawa; 瑛一黒田; Eiichi Kuroda; 護間中; Mamoru Manaka
Original assignee: Sumitomo Forestry Co Ltd; Kumagai Gumi Co Ltd
Current assignee: Sumitomo Forestry Co Ltd; Kumagai Gumi Co Ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2022-10-31

Abstract

To provide a joint structure of structural members, which can reduce processing works and processing costs of a second load support part in the junction structure that joints: a first structural member comprising a first load support part and a first fireproof cover part; and a second structural member comprising a second load support part and a second fireproof cover part.SOLUTION: A joint structure of structural members according to the invention comprises: a first structural member 1, having a first load support part (a metallic column 10) and a first fireproof cover part 11 arranged to cover a surface of the first load support part; a second structural member 2, having a second load support part (a wooden beam 20) and a second fireproof cover part 21 arranged to cover a surface of the second load support part; and joint means 3 that joints the first structural member with the second structural member. The joint means 3 is characterized in that its one end is jointed to the first load support part (the metallic column 10) not via the first fireproof cover part 11 and the other end is jointed to the second load support part (the wooden beam 20) via the second fireproof cover part 21.SELECTED DRAWING: Figure 1

Description

本発明は、第１の荷重支持部と当該第１の荷重支持部の表面を覆う第１の耐火被覆部とを有した第１の構造部材と、第２の荷重支持部と当該第２の荷重支持部の表面を覆う第２の耐火被覆部とを有した第２の構造部材とを接合するための、構造部材の接合構造に関する。 The present invention provides a first structural member having a first load-bearing portion and a first refractory coating covering the surface of the first load-bearing portion, a second load-bearing portion and the second load-bearing portion. The present invention relates to a structural member joining structure for joining a second structural member having a second fireproof coating covering the surface of a load bearing portion.

鋼製の第１構造部材と、荷重を支持する木製の心材と当該心材の周囲を取り囲む燃え止まり層とを備えた第２構造部材と、燃え止まり層を介さずに心材に固定され、第１構造部材と第２構造部材とを接合し、第１構造部材から心材へ及び心材から第１構造部材へ力を伝える接合部材と、第１構造部材を覆い、当該第１構造部材から心材へ伝達される熱を心材が燃焼しない温度にする被覆層とを有する構造部材の接合構造が知られている（特許文献１等参照）。 a first structural member made of steel; a second structural member comprising a wooden core for supporting a load and a fire stop layer surrounding the core; a joining member joining the structural member and the second structural member and transmitting forces from the first structural member to the core and from the core to the first structural member; covering the first structural member and transmitting from the first structural member to the core; There is known a joining structure of a structural member having a coating layer at which the heat applied is kept at a temperature at which the core material does not burn (see Patent Document 1, etc.).

特許第５９９０４２５号公報Japanese Patent No. 5990425

特許文献１に開示された構造部材の接合構造では、接合部材が、燃え止まり層を介さずに心材に固定されて、第１構造部材と第２構造部材とを接合し、第１構造部材から心材へ及び心材から第１構造部材へ力を伝えるように構成されている。
つまり、特許文献１では、心材（木質柱）と梁（金属質梁（Ｈ形鋼））とを接合するための接合部材としてのガセットプレート（接合板）を、固定手段としてのボルト及びナットを使用して心材に固定した構造である。
このように、接合部材を、燃え止まり層を介さずに心材に固定して、かつ、心材の表面全体に燃え止まり層及び燃え代層を確実に設けられるようにするために、特許文献１においては、接合部材を心材に固定するための固定手段としてのボルトの一端部及びナットが心材の表面に突出しないようにする構成として、心材の表面に当該固定手段を収容するための凹部を形成するようにしている。
即ち、特許文献１に開示された構造部材の接合構造によれば、接合部材を、燃え止まり層を介さずに心材に固定する構造としているため、第２構造部材の荷重支持部としての心材の表面に、固定手段を収容する凹部を形成するための座繰り加工が必要となり、加工手間、加工コストが増えるという課題があった。
本発明は、上述した課題に鑑みて、第１の荷重支持部と当該第１の荷重支持部の表面を覆う第１の耐火被覆部とを有した第１の構造部材と、第２の荷重支持部と当該第２の荷重支持部の表面を覆う第２の耐火被覆部とを有した第２の構造部材とを接合する接合構造において、第２の荷重支持部の加工手間、加工コストを削減できる構造部材の接合構造を提供するものである。 In the joint structure of structural members disclosed in Patent Document 1, the joint member is fixed to the core material without interposing the burn-stop layer to join the first structural member and the second structural member, and the first structural member It is configured to transmit force to and from the core to the first structural member.
That is, in Patent Document 1, a gusset plate (joining plate) as a joining member for joining a core (wooden column) and a beam (metallic beam (H-shaped steel)), and bolts and nuts as fixing means are used. It is a structure that is fixed to the heartwood using
In order to fix the joining member to the core material without interposing the flame stop layer and to reliably provide the flame stop layer and the burn allowance layer on the entire surface of the core material, Patent Document 1 discloses is configured so that one end of the bolt and the nut as fixing means for fixing the joining member to the core material do not protrude from the surface of the core material, forming a recess for accommodating the fixing means on the surface of the core material. I'm trying
That is, according to the joint structure of structural members disclosed in Patent Document 1, since the joint member is fixed to the core material without interposing the burn-stop layer, the core material serving as the load-bearing portion of the second structural member is used. There is a problem in that the surface needs to be counter-bored to form a recessed portion for accommodating the fixing means, which increases processing labor and processing costs.
In view of the above problems, the present invention provides a first structural member having a first load-bearing portion and a first fireproof coating covering the surface of the first load-bearing portion, and a second load-bearing member. In a joint structure that joins a support portion and a second structural member having a second fireproof coating that covers the surface of the second load-bearing portion, the processing labor and processing cost of the second load-bearing portion are reduced. It is an object of the present invention to provide a joining structure of structural members that can reduce the number of members.

本発明に係る構造部材の接合構造は、第１の荷重支持部と、第１の荷重支持部の表面を覆うように設けられた第１の耐火被覆部とを有した第１の構造部材と、第２の荷重支持部と、第２の荷重支持部の表面を覆うように設けられた第２の耐火被覆部とを有した第２の構造部材と、第１の構造部材と第２の構造部材とを接合する接合手段とを備え、第１の荷重支持部と第２の荷重支持部とが、それぞれ、異なる材料により形成された荷重支持部であり、接合手段は、一端側が第１の耐火被覆部を介さずに第１の荷重支持部に接合され、他端側が第２の耐火被覆部を介して第２の荷重支持部に接合されたことを特徴とする。
また、互いに対向する第１の荷重支持部と第２の耐火被覆部との間を離間させたことを特徴とする。
また、第１の荷重支持部は金属質柱又は金属質梁であり、第２の荷重支持部は木質梁であることを特徴とする。
また、接合手段は、接合板と、固定手段とを備え、接合板は、木質梁の梁端部の一方の側面を覆うように設けられた第２の耐火被覆部の表面に沿って設けられた一方接合板と、木質梁の梁端部の一方の側面と対向する他方の側面を覆うように設けられた第２の耐火被覆部の表面に沿って設けられた他方接合板とを備え、固定手段は、一方接合板の一端側又は他方接合板の一端側を第１の荷重支持部に固定する第１固定手段と、一方接合板の他端側及び他方接合板の他端側を第２の構造部材に固定する第２固定手段とを備え、第２固定手段は、木質梁の梁端部の一方の側面を覆う第２の耐火被覆部の表面と木質梁の梁端部の他方の側面を覆う第２の耐火被覆部の表面との間の梁端部及び第２の耐火被覆部を貫通するように第２の構造部材に形成された構造部材側貫通孔と、一方接合板の他端側及び他方接合板の他端側に形成された接合板側貫通孔とを連通させて構成された軸材通し用貫通孔と、軸材通し用貫通孔を貫通するように設けられた軸材と、木質梁の梁端部の一方の側面を覆う第２の耐火被覆部を貫通した軸材の一端側及び一方接合板の他端側に締結された締結部材と、木質梁の梁端部の他方の側面を覆う第２の耐火被覆部を貫通した軸材の他端側及び他方接合板の他端側に締結された締結部材とを備えたことを特徴とする。
また、第２の耐火被覆部が石こうボードを含む１層以上の耐火被覆層により構成されたことを特徴とする。
本発明に係る構造部材の接合構造によれば、第２の荷重支持部の加工手間、加工コストを削減できるようになる。
第１の荷重支持部と第２の荷重支持部と間の熱の伝達を、より効果的に抑制できるようになる。
さらに、耐火性能、施工性を向上できる。 A structural member joint structure according to the present invention comprises a first structural member having a first load bearing portion and a first fireproof coating provided to cover the surface of the first load bearing portion; , a second structural member having a second load-bearing portion and a second refractory coating overlying a surface of the second load-bearing portion; joining means for joining the structural member, wherein the first load bearing portion and the second load bearing portion are load bearing portions made of different materials, and the joining means has the first load bearing portion at one end thereof; is joined to the first load-bearing part without the fire-resistant coating part, and the other end side is joined to the second load-bearing part through the second fire-resistant coating part.
Also, the first load bearing portion and the second fireproof covering portion facing each other are separated from each other.
Also, the first load supporting part is a metallic column or a metallic beam, and the second load supporting part is a wooden beam.
The joining means includes a joining plate and a fixing means, and the joining plate is provided along the surface of the second fireproof coating provided to cover one side surface of the beam end of the wooden beam. and a second joint plate provided along the surface of the second fireproof coating provided to cover one side of the beam end of the wooden beam and the other side opposite to the other side, The fixing means includes first fixing means for fixing one end side of the one joint plate or one end side of the other joint plate to the first load supporting portion, and second fixing means for fixing the other end side of the one joint plate and the other end side of the other joint plate to the first load support portion. a second fixing means for fixing to the second structural member, the second fixing means covering the surface of the second fireproof coating covering one side surface of the beam end of the wooden beam and the other of the beam end of the wooden beam; A structural member side through hole formed in the second structural member so as to penetrate the beam end and the second fireproof coating between the surface of the second fireproof coating covering the side surface of the one joining plate A through-hole for shaft material passage configured to communicate with the other end side and a joint plate-side through-hole formed on the other end side of the other joint plate, and a through-hole for shaft member passage, provided so as to penetrate a fastening member fastened to one end side of the shaft member passing through the second fireproof coating covering one side surface of the beam end of the wooden beam and to the other end side of the one joining plate; A fastening member fastened to the other end side of the shaft member and the other end side of the other joint plate penetrating through the second fireproof covering covering the other side surface of the beam end is provided.
Also, the second fire-resistant coating part is characterized by being composed of one or more fire-resistant coating layers including a gypsum board.
According to the joining structure of structural members according to the present invention, it is possible to reduce the processing labor and processing cost of the second load supporting portion.
Heat transfer between the first load-bearing portion and the second load-bearing portion can be more effectively suppressed.
Furthermore, fire resistance and workability can be improved.

第１の荷重支持部としての金属質柱を有した第１の構造部材と第２の荷重支持部としての木質梁を有した第２の構造部材との接合構造を示す斜視図（実施形態１）。A perspective view showing a joint structure of a first structural member having a metallic column as a first load supporting portion and a second structural member having a wooden beam as a second load supporting portion (Embodiment 1 ). 第１の構造部材と第２の構造部材との接合構造を示す横断面図（実施形態１）。FIG. 2 is a cross-sectional view showing a joint structure between a first structural member and a second structural member (Embodiment 1). 図２のＡ－Ａ断面図（縦断面図）（実施形態１）。AA sectional view (longitudinal sectional view) of FIG. 2 (Embodiment 1).

実施形態１
実施形態１に係る構造部材の接合構造は、図１乃至図３に示すように、第１の荷重支持部と当該第１の荷重支持部の表面を覆う第１の耐火被覆部とを有した第１の構造部材１と、第２の荷重支持部と当該第２の荷重支持部の表面を覆う第２の耐火被覆部とを有した第２の構造部材２と、第１の構造部材１と第２の構造部材２とを接合する接合手段３とを備え、接合手段３は、一端側が第１の耐火被覆部を介さずに第１の荷重支持部に接合され、他端側が第２の耐火被覆部を介して第２の荷重支持部に接合された接合構造とした。
また、第１の荷重支持部と第２の荷重支持部とが、それぞれ、異なる材料により形成された荷重支持部であり、実施形態１に係る構造部材の接合構造では、荷重を支持する第１の荷重支持部としての例えば断面ロ字状の鋼管柱等の中空の金属質柱１０と荷重を支持する第２の荷重支持部としての例えば木質梁２０とが接合手段３により接合される。 Embodiment 1
As shown in FIGS. 1 to 3, the joining structure of structural members according to Embodiment 1 has a first load-bearing portion and a first fireproof coating covering the surface of the first load-bearing portion. a first structural member 1; a second structural member 2 having a second load-bearing portion and a second refractory coating overlying the second load-bearing portion; and the second structural member 2, one end side of the joining means 3 is joined to the first load bearing portion without the first fireproof coating interposed therebetween, and the other end side is the second The joint structure was joined to the second load bearing part through the fireproof coating part.
Further, the first load supporting portion and the second load supporting portion are load supporting portions formed of different materials, respectively. A hollow metallic column 10 such as a steel pipe column having a rectangular cross section as a load supporting portion and a wooden beam 20 as a second load supporting portion for supporting the load are joined by joining means 3 .

第１の構造部材１は、第１の荷重支持部としての金属質柱１０と、当該金属質柱１０の表面を覆うように設けられた第１の耐火被覆部１１とを備えた構成とした。 The first structural member 1 comprises a metallic column 10 as a first load bearing portion and a first fireproof coating 11 provided to cover the surface of the metallic column 10. .

第１の耐火被覆部１１は、例えば金属質柱１０の表面を覆うように設けられた石こうボード等の耐火板による耐火被覆層、あるいは、ロックウールとセメントとを混ぜ合わせた耐火被覆材を金属質柱１０の表面に吹き付けて形成された耐火被覆層等により構成される。
尚、第１の耐火被覆部１１を石こうボード等の耐火板による耐火被覆層で構成した場合には、第１の耐火被覆部１１の表面には、表面仕上げ材を設けることが好ましいが、当該表面仕上げ材は設けなくても良い。 The first refractory coating 11 is a refractory coating layer of a refractory plate such as a gypsum board provided so as to cover the surface of the metal column 10, or a refractory coating material obtained by mixing rock wool and cement. It is composed of a refractory coating layer or the like formed by spraying onto the surface of the mass column 10 .
When the first fireproof coating 11 is composed of a fireproof coating layer of a fireproof board such as a gypsum board, it is preferable to provide a surface finishing material on the surface of the first fireproof coating 11. No surface finishing material is required.

第２の構造部材２は、第２の荷重支持部としての木質梁２０と、当該木質梁２０の表面を覆うように設けられた第２の耐火被覆部２１とを備えた構成とした。 The second structural member 2 includes a wooden beam 20 as a second load bearing portion and a second fireproof coating 21 provided to cover the surface of the wooden beam 20 .

木質梁２０は、例えば、ＣＬＴ（Cross Laminated Timber（直交集成板））又は集成材又はＬＶＬ（Laminated Veneer Lumber（単層積層材））又は無垢材等の木により形成された梁である。
尚、ＣＬＴとは、農林水産省告示第３０７９号に規定されたように、「ひき板又は小角材（これらをその繊維方向を互いにほぼ平行にして長さ方向に接合接着して調整したものを含む。）をその繊維方向を互いにほぼ平行にして幅方向に並べ又は接着したものを、主としてその繊維方向を互いにほぼ直角にして積層接着し３層以上の構造を持たせた一般材」である。
即ち、ＣＬＴは、一般に、張り合わせる板の繊維方向が直交するように複数の板を張り合わせて構成された木材であり、直交集成板と呼ばれている。
また、集成材は、一般に、張り合わせる板の繊維方向が並行方向となるように複数の板を張り合わせて構成された木材である。
また、ＬＶＬは、一般に、複数の単板（ベニヤ）を、単板の繊維方向に平行に積層して接着した木材である。 The wooden beam 20 is, for example, a beam made of wood such as CLT (Cross Laminated Timber), laminated wood, LVL (Laminated Veneer Lumber), or solid wood.
CLT, as stipulated in Notification No. 3079 of the Ministry of Agriculture, Forestry and Fisheries, is defined as "a sawn board or small square lumber (these are adjusted by joining and bonding them in the length direction with their fiber directions almost parallel to each other. ) are arranged or bonded in the width direction with their fiber directions almost parallel to each other, and laminated and bonded mainly with their fiber directions almost perpendicular to each other to give a structure of 3 or more layers. .
That is, CLT is generally a piece of wood composed of a plurality of boards bonded together so that the fiber directions of the bonded boards are orthogonal to each other, and is called a cross-laminated board.
Laminated lumber is generally a lumber made by bonding a plurality of boards such that the fiber directions of the boards are parallel to each other.
Also, LVL is generally a lumber made by laminating and bonding a plurality of veneers in parallel to the fiber direction of the veneers.

木質梁２０の梁端部２０ｅ，２０ｅには、一方の側面２２Ｘ、及び、当該一方の側面２２Ｘと対向する他方の側面２２Ｙに亘って貫通する梁貫通孔２６が形成されている。
当該梁貫通孔２６は、後述する軸材としてのボルト６を貫通させるための貫通孔である。当該梁貫通孔２６は、梁端部２０ｅの梁成方向に沿って所定の間隔を隔てて複数形成されている。
また、木質梁２０の上端面２５の上には、上階の床スラブＦが形成される。 Beam through-holes 26 are formed in the beam ends 20e, 20e of the wooden beam 20 so as to extend through one side surface 22X and the other side surface 22Y opposite to the one side surface 22X.
The beam through-hole 26 is a through-hole for passing a bolt 6 as a shaft member, which will be described later. A plurality of beam through-holes 26 are formed at predetermined intervals along the beam forming direction of the beam end portion 20e.
A floor slab F for the upper floor is formed on the upper end surface 25 of the wooden beam 20 .

第２の耐火被覆部２１は、木質梁２０の両方の側面、即ち、一方の側面２２Ｘと他方の側面２２Ｙと下面２３と梁端面２４とを覆う耐火被覆層により構成される。
当該第２の耐火被覆部２１は、例えば一層以上の石こうボード等の耐火部材により構成すればよい。
当該第２の耐火被覆部２１は、具体的には、例えば、石こうボードと石こうボードとの間に断熱性（耐火性）を有した板（以下、耐熱耐火パネルという）を設けた積層構造の耐火被覆層とした。即ち、木質梁２０の互いに対向する両方の梁側面２２Ｘ，２２Ｙ、木質梁２０の下面２３、及び、木質梁２０の梁端面２４，２４に、所定厚さの石こうボードを取付けた１層目の被覆層を形成するとともに、当該１層目の被覆層の表面に断熱耐火パネルを取付けた２層目の被覆層を形成し、当該２層目の被覆層の表面に所定厚さの石こうボードを取付けた３層目の被覆層を形成した耐火被覆構造、つまり、３層構造の耐火被覆層により構成された耐火被覆部とした。
尚、第２の耐火被覆部２１の表面には、表面仕上げ材を設けることが好ましいが、表面仕上げ材は設けなくても良い。
また、第２の耐火被覆部２１は、必ずしも３層構造である必要はなく、２層構造、単層構造、多層構造であってもかまわない。
即ち、第２の耐火被覆部２１を、石こうボードを含む１層以上の耐火被覆層により構成したことにより、耐火性能、施工性を向上できる。 The second fireproof coating portion 21 is composed of a fireproof coating layer that covers both side surfaces of the wooden beam 20, that is, one side surface 22X, the other side surface 22Y, the lower surface 23, and the beam end surface 24. As shown in FIG.
The second fireproof coating 21 may be composed of, for example, one or more layers of a fireproof member such as a gypsum board.
Specifically, the second fireproof coating 21 is, for example, a laminated structure in which a plate having heat insulation (fire resistance) (hereinafter referred to as a heat-resistant and fire-resistant panel) is provided between gypsum boards. A refractory coating layer was formed. That is, the first layer is formed by attaching gypsum boards having a predetermined thickness to both beam side surfaces 22X and 22Y of the wooden beam 20 facing each other, the lower surface 23 of the wooden beam 20, and the beam end surfaces 24 and 24 of the wooden beam 20. Along with forming a coating layer, a second coating layer is formed by attaching a heat insulating and fireproof panel to the surface of the first coating layer, and a gypsum board having a predetermined thickness is formed on the surface of the second coating layer. A fire-resistant coating structure in which the attached third coating layer was formed, that is, a fire-resistant coating portion constituted by three-layered fire-resistant coating layers.
Although it is preferable to provide a surface finishing material on the surface of the second fireproof coating 21, it is not necessary to provide the surface finishing material.
Moreover, the second fireproof coating 21 does not necessarily have to have a three-layer structure, and may have a two-layer structure, a single-layer structure, or a multi-layer structure.
That is, by configuring the second fire-resistant coating part 21 with one or more fire-resistant coating layers including a gypsum board, fire-resistant performance and workability can be improved.

接合手段３は、接合板と、固定手段とを備える。
接合板は、木質梁２０の梁端部２０ｅの一方の側面２２Ｘを覆うように設けられた第２の耐火被覆部２１の表面に板面が接触するように設置された一方接合板４と、木質梁２０の梁端部２０ｅの他方の側面２２Ｙを覆うように設けられた第２の耐火被覆部２１の表面に板面が接触するように設置された他方接合板５とを備える。
固定手段は、一方接合板４の一端側４１又は他方接合板５の一端側５１を金属質柱１０（第１の荷重支持部）に固定する第１固定手段と、一方接合板４の他端側４２及び他方接合板５の他端側５２を第２の構造部材２に固定する第２固定手段とを備える。 The joining means 3 includes a joining plate and fixing means.
The joining plate is one joining plate 4 installed so that the plate surface is in contact with the surface of the second fireproof coating 21 provided so as to cover one side surface 22X of the beam end 20e of the wooden beam 20, The second joint plate 5 is installed so that the plate surface is in contact with the surface of the second fireproof coating 21 provided to cover the other side surface 22Y of the beam end 20e of the wooden beam 20.
The fixing means includes a first fixing means for fixing one end side 41 of one joint plate 4 or one end side 51 of the other joint plate 5 to the metallic column 10 (first load support portion), and the other end of the one joint plate 4 . a second fixing means for fixing the side 42 and the other end side 52 of the other joining plate 5 to the second structural member 2;

一方接合板４は、例えば縦方向（木質梁２０の梁成に沿った方向（梁成方向））に長く当該縦方向と直交する横方向（梁の延長方向）に沿った断面がＬ字状の鋼板により形成される。
同様に、他方接合板５は、例えば縦方向に長く当該縦方向と直交する横方向に沿った断面がＬ字状の鋼板により形成される。
言い換えれば、一方接合板４及び他方接合板５は、木質梁２０の梁成に沿った縦方向に長い長方形の平鋼板の一方の長辺側の部分を当該一方の長辺と平行な折曲線に沿って折り曲げて、当該折り曲げられた一方の長辺側の部分の板面と他方の長辺側の部分の板面との成す角度が直角又は略直角になるように形成されたＬ形鋼板により構成される。 On the other hand, the joining plate 4 is long in the longitudinal direction (the direction along the beam structure of the wooden beam 20 (beam structure direction)) and has an L-shaped cross section along the horizontal direction (the beam extension direction) orthogonal to the longitudinal direction. It is formed by a steel plate of
Similarly, the other joining plate 5 is formed of a steel plate that is elongated in the vertical direction and has an L-shaped cross section along the horizontal direction orthogonal to the vertical direction, for example.
In other words, the one joint plate 4 and the other joint plate 5 are formed by folding a portion on one long side of a rectangular flat steel plate elongated in the longitudinal direction along the beam structure of the wooden beam 20 into a folding line parallel to the one long side. L-shaped steel plate formed by bending along an angle so that the angle formed by the plate surface of one long side portion and the plate surface of the other long side portion is a right angle or approximately a right angle Consists of

一方接合板４は、一端側４１となる一方の長辺側の部分の板面と金属質柱１０の一側面１２とを接触させた状態で、第１固定手段としての溶接によって、金属質柱１０に固定される。
尚、金属質柱１０の一側面１２とは、木質梁２０の梁端面２４と対向する面である。
同様に、他方接合板５は、一端側５１となる一方の長辺側の部分の板面と金属質柱１０の一側面１２とを接触させた状態で、第１固定手段としての溶接によって、金属質柱１０に固定される。
また、一方接合板４は、他端側４２となる他方の長辺側の部分の板面が、木質梁２０の梁端部２０ｅの一方の側面２２Ｘを覆うように設けられた第２の耐火被覆部２１の表面に沿って対向するように設けられて、当該他端側４２となる他方の長辺側の部分の板面と当該第２の耐火被覆部２１の表面とが接触状態となるように、第２固定手段によって、第２の構造部材２の梁端部２０ｅ側に固定される。
同様に、他方接合板５は、他端側５２となる他方の長辺側の部分の板面が、木質梁２０の梁端部２０ｅの一方の側面２２Ｙを覆うように設けられた第２の耐火被覆部２１の表面に沿って対向するように設けられて、当該他端側５２となる他方の長辺側の部分の板面と当該第２の耐火被覆部２１の表面とが接触状態となるように、第２固定手段によって、第２の構造部材２の梁端部２０ｅ側に固定される。 On the other hand, the joining plate 4 is attached to the metallic column by welding as the first fixing means in a state in which the plate surface of the portion on one long side that becomes the one end side 41 and the side surface 12 of the metallic column 10 are brought into contact with each other. Fixed at 10.
The one side surface 12 of the metal column 10 is a surface facing the beam end surface 24 of the wooden beam 20 .
Similarly, the other joining plate 5 is welded as a first fixing means in a state in which the plate surface of the portion on one long side that becomes the one end side 51 and the side surface 12 of the metallic column 10 are in contact with each other. It is fixed to the metallic column 10 .
In addition, the one joint plate 4 is provided so that the plate surface of the portion on the other long side that becomes the other end side 42 covers one side surface 22X of the beam end portion 20e of the wooden beam 20. The surface of the second fireproof coating 21 is in contact with the plate surface of the portion on the other long side that is provided along the surface of the coating 21 and becomes the other end 42 . , it is fixed to the beam end portion 20e side of the second structural member 2 by the second fixing means.
Similarly, the other joint plate 5 is provided so that the plate surface of the portion on the other long side that becomes the other end side 52 covers one side surface 22Y of the beam end portion 20e of the wooden beam 20. The surface of the second fireproof coating 21 and the surface of the second fireproof coating 21 are in contact with each other, provided along the surface of the fireproof coating 21 so as to face each other. is fixed to the beam end portion 20e side of the second structural member 2 by the second fixing means.

第２固定手段は、第２の構造部材２に形成された構造部材側貫通孔と一方接合板４の他端側４２に形成された接合板側貫通孔６６と他方接合板５の他端側４２に形成された接合板側貫通孔６６とで構成された軸材通し用貫通孔としてのボルト通し用貫通孔と、ボルト通し用貫通孔を貫通させた軸材としてのボルト６と、一方接合板４の他端側４２の接合板側貫通孔６６を貫通させて外方に突出させたボルト６の一端側６１及び一方接合板４の他端側４２に締結された締結部材としてのナット４５と、他方接合板５の他端側５２の接合板側貫通孔６６を貫通させて外方に突出させたボルト６の他端側６２及び他方接合板５の他端側５２に締結された締結部材としてのナット５５とを備えて構成される。
尚、ナット４５、ナット５５としては、ダブルナットを用いることが好ましい。 The second fixing means includes a structural member side through hole formed in the second structural member 2 , a joint plate side through hole 66 formed in the other end side 42 of the one joint plate 4 , and the other end side of the other joint plate 5 . A through hole for bolt passage as a through hole for passage of a shaft member constituted by a joint plate side through hole 66 formed in 42, a bolt 6 as a shaft member passing through the through hole for bolt passage, and one joint A nut 45 as a fastening member fastened to one end side 61 of a bolt 6 projecting outward through a joining plate side through hole 66 of the other end side 42 of the plate 4 and to the other end side 42 of the one joining plate 4 . and the other end side 62 of the bolt 6 protruding outward through the joint plate side through hole 66 of the other end side 52 of the other joint plate 5 and the other end side 52 of the other joint plate 5. and a nut 55 as a member.
As the nuts 45 and 55, it is preferable to use double nuts.

構造部材側貫通孔は、木質梁２０の梁端部２０ｅの一方の側面２２Ｘと他方の側面２２Ｙとに亘って貫通するように形成された梁貫通孔２６と、木質梁２０の梁端部２０ｅの一方の側面２２Ｘを覆う第２の耐火被覆部２１を貫通するように形成された被覆部貫通孔２１ａと、木質梁２０の梁端部２０ｅの他方の側面２２Ｙを覆う第２の耐火被覆部２１を貫通するように形成された被覆部貫通孔２１ａとが連通するように設けられて構成される。
そして、当該構造部材側貫通孔と、一方接合板４の他端側４１の板を貫通するように形成された接合板側貫通孔６６と、他方接合板５の他端側５１の板を貫通するように形成された接合板側貫通孔６６とを連通させることにより、ボルト通し用貫通孔が構成される。
構造部材側貫通孔は、木質梁２０の梁端部２０ｅの側面２２Ｘ，２２Ｙにおける梁成方向（縦方向）に沿って所定の間隔を隔てて複数形成される。
また、接合板側貫通孔６６は、一方接合板４の他端側４２及び他方接合板５の他端側５２の板の縦方向（梁成方向）に沿って、構造部材側貫通孔間の所定の間隔と同じ所定間隔を隔てて複数形成される。
尚、構造部材側貫通孔は、ボルト６の径寸法に対応した径寸法の断面円形孔に形成される。
また、接合板側貫通孔６６は、一方接合板４の他端側４２及び他方接合板５の他端側５２の板の横方向（梁の延長方向）に長い長径で長孔に形成される。当該接合板側貫通孔６６の短径寸法は、ボルトの径寸法に対応した径寸法に形成される。
このように、接合板側貫通孔６６を梁の延長方向に長くなる長孔に形成したため、対応する第２の構造部材２の構造部材側貫通孔の中心と一方接合板４の他端側４２及び他方接合板５の他端側５２の接合板側貫通孔６６，６６の中心とが梁の延長方向にずれたとしても、当該構造部材側貫通孔と接合板側貫通孔６６，６６とを連通させたボルト通し用貫通孔を容易に形成できるようになるため、第２の構造部材２の梁端部２０ｅ側と一方接合板４の他端側４２及び他方接合板５の他端側５２との接合作業を容易に行えるようになる。 The structural member-side through-holes are a beam through-hole 26 formed so as to pass through the beam end portion 20e of the wooden beam 20 over one side surface 22X and the other side surface 22Y, and the beam end portion 20e of the wooden beam 20. The second fireproof coating portion covering the other side surface 22Y of the beam end 20e of the wooden beam 20 and the second fireproof coating portion 21a formed to penetrate the second fireproof coating portion 21 covering one side surface 22X of the wooden beam 20. 21 is provided so as to communicate with the covering portion through-hole 21a formed so as to penetrate the cover portion 21. As shown in FIG.
Then, the structural member side through hole, the joint plate side through hole 66 formed so as to penetrate the plate on the other end side 41 of the one joint plate 4, and the plate on the other end side 51 of the other joint plate 5 are penetrated. A through-hole for bolt passage is configured by communicating with the joint plate-side through-hole 66 formed so as to communicate with the through-hole 66 .
A plurality of structural member side through-holes are formed at predetermined intervals along the beam forming direction (longitudinal direction) on the side surfaces 22X and 22Y of the beam end portion 20e of the wooden beam 20. As shown in FIG.
The joint plate side through holes 66 are formed between the structural member side through holes along the longitudinal direction (beam formation direction) of the other end side 42 of the one joint plate 4 and the other end side 52 of the other joint plate 5. A plurality of them are formed at a predetermined interval that is the same as the predetermined interval.
The structural member-side through-hole is formed to have a circular cross-sectional hole with a diameter corresponding to the diameter of the bolt 6 .
In addition, the joint plate side through hole 66 is formed as an elongated hole with a long diameter that is long in the horizontal direction (extending direction of the beam) of the other end side 42 of the one joint plate 4 and the other end side 52 of the other joint plate 5. . The short diameter dimension of the joint plate side through hole 66 is formed to have a diameter dimension corresponding to the diameter dimension of the bolt.
In this way, since the joining plate side through hole 66 is formed as an elongated hole elongated in the extension direction of the beam, the center of the structural member side through hole of the corresponding second structural member 2 and the other end side 42 of the one joining plate 4 are aligned. Even if the centers of the joint plate side through holes 66, 66 on the other end side 52 of the other joint plate 5 deviate in the extension direction of the beam, the structural member side through holes and the joint plate side through holes 66, 66 Since the communicating through-holes for bolting can be easily formed, the beam end portion 20e side of the second structural member 2, the other end side 42 of the one joint plate 4, and the other end side 52 of the other joint plate 5 are formed. It becomes easy to perform the joining work with.

以上説明した構成の接合構造の施工手順の一例について説明する。
まず、木質梁２０の互いに対向する両方の梁側面２２Ｘ，２２Ｙ、木質梁２０の下面２３、及び、木質梁２０の梁端面２４，２４に、第２の耐火被覆部２１が設けられて、構造部材側貫通孔（梁貫通孔２６及び被覆部貫通孔２１ａ，２１ａ）が形成されるように作製された第２の構造部材２を用意しておく。
そして、木質梁２０の梁端面２４と対向させる金属質柱１０の一側面１２に、一方接合板４の一端側４１と、他方接合板５の一端側５１とを、第1固定手段としての溶接により固定する。この場合、一方接合板４の他端側４２の板面と他方接合板５の他端側５２の板面との間の対向間隔寸法が、第２の構造部材２の一方の側面と他方の側面との間の間隔寸法に対応した寸法になるように固定する。
次に、金属質柱１０の露出した表面に第１の耐火被覆部１１を形成する。
そして、第２の構造部材２の梁端部２０ｅ側を、一方接合板４の他端側４２の板面と他方接合板５の他端側５２の板面との間に設置して、一方接合板４の他端側４２の接合板側貫通孔６６と第２の構造部材２の構造部材側貫通孔と他方接合板５の他端側５２の接合板側貫通孔６６とを連通させた複数のボルト通し用貫通孔を形成した後、各ボルト通し用貫通孔に、それぞれ、ボルト６，６…を貫通させる。
その後、一方接合板４の他端側４２の接合板側貫通孔６６を貫通させて外方に突出させたボルト６の一端側６１にナット４５を螺着するとともに、他方接合板５の他端側５２の接合板側貫通孔６６を貫通させて外方に突出させたボルト６の他端側６２にナット５５を螺着して、当該ナット４５及びナット５５を締結することにより、一方接合板４の他端側４２が第２の構造部材２の梁端部２０ｅ側に固定されるとともに、他方接合板５の他端側５２を第２の構造部材２の梁端部２０ｅ側に固定される。
換言すれば、ナット４５は、木質梁２０の梁端部２０ｅの一方の側面２２Ｘを覆う第２の耐火被覆部２１を貫通した軸材としてのボルト６の一端側６１及び一方接合板４の他端側４２に締結された締結部材として機能する。同様に、ナット５５は、木質梁２０の梁端部２０ｅの他方の側面２２Ｙを覆う第２の耐火被覆部２１を貫通した軸材としてのボルト６の他端側６２及び他方接合板５の他端側５２に締結された締結部材として機能する。
以上により、第１の構造部材１と第２の構造部材２とが接合手段３により接合される。
そして、上階の床スラブＦを形成するための図外のコンクリート打設用の型枠を設置して、当該型枠の上、及び、木質梁２０の上端面２５の上にコンクリートを打設することにより、上階の床スラブＦを形成する。
尚、上述した施工手順の順番は、あくまでも一例であり、施工手順は上述した順番でなくとも構わない。
例えば、予め一方接合板４の他端側４２及び他方接合板５の他端側５２を第２の構造部材２の梁端部２０ｅ側に取付けておいてから、一方接合板４の一端側４１及び他方接合板５の一端側５１を、金属質柱１０の一側面１２に溶接して固定するようにしてもよい。
尚、図示は省略したが、木質梁２０の互いに対向する両方の梁側面２２Ｘ，２２Ｙに設けられた第２の耐火被覆部２１の表面に露出することになる、一方接合板４の他端側４２，他方接合板５の他端側５２、ボルト６の両端側（一端側６１，他端側６２)、ナット４５，５５の表面にも、第１の耐火被覆部１１を形成する。 An example of the construction procedure of the joint structure having the configuration described above will be described.
First, the beam side surfaces 22X and 22Y of the wooden beams 20 facing each other, the lower surface 23 of the wooden beams 20, and the beam end surfaces 24 and 24 of the wooden beams 20 are provided with the second fireproof coatings 21. A second structural member 2 is prepared in which member-side through holes (beam through holes 26 and covering portion through holes 21a, 21a) are formed.
Then, one end side 41 of one joining plate 4 and one end side 51 of the other joining plate 5 are welded as a first fixing means to one side face 12 of the metal column 10 facing the beam end face 24 of the wooden beam 20. fixed by In this case, the facing distance dimension between the plate surface of the other end side 42 of the one joint plate 4 and the plate surface of the other end side 52 of the other joint plate 5 is Fix it so that the dimension corresponds to the dimension of the space between the sides.
Next, a first refractory coating 11 is formed on the exposed surface of the metallic column 10 .
Then, the beam end portion 20e side of the second structural member 2 is installed between the plate surface of the other end side 42 of the one joint plate 4 and the plate surface of the other end side 52 of the other joint plate 5, The joint plate side through hole 66 of the other end side 42 of the joint plate 4, the structural member side through hole of the second structural member 2, and the joint plate side through hole 66 of the other end side 52 of the other joint plate 5 are communicated. After forming a plurality of through-holes for bolting, bolts 6, 6 . . . are passed through the respective through-holes for bolting.
After that, a nut 45 is screwed onto the one end 61 of the bolt 6 that penetrates the joint plate side through hole 66 of the other end 42 of the one joint plate 4 and projects outward, and the other end of the other joint plate 5 is screwed. A nut 55 is screwed onto the other end 62 of the bolt 6 protruding outward through the joint plate side through hole 66 of the side 52, and the nut 45 and the nut 55 are tightened to form one joint plate. 4 is fixed to the beam end portion 20 e side of the second structural member 2 , and the other end side 52 of the other joining plate 5 is fixed to the beam end portion 20 e side of the second structural member 2 . be.
In other words, the nut 45 is connected to the one end side 61 of the bolt 6 as a shaft material penetrating the second fireproof coating 21 covering one side surface 22X of the beam end 20e of the wooden beam 20, and the joint plate 4 as well. It functions as a fastening member fastened to the end side 42 . Similarly, the nut 55 is connected to the other end 62 of the bolt 6 as a shaft material penetrating the second fireproof coating 21 covering the other side 22Y of the beam end 20e of the wooden beam 20 and the other joint plate 5. It functions as a fastening member fastened to the end side 52 .
As described above, the first structural member 1 and the second structural member 2 are joined by the joining means 3 .
Then, a formwork for placing concrete (not shown) for forming the floor slab F of the upper floor is installed, and concrete is poured on the formwork and on the upper end surface 25 of the wooden beam 20. By doing so, the floor slab F of the upper floor is formed.
It should be noted that the order of the construction procedures described above is merely an example, and the construction procedures do not have to be in the order described above.
For example, after attaching the other end side 42 of the one joint plate 4 and the other end side 52 of the other joint plate 5 to the beam end portion 20e side of the second structural member 2 in advance, the one end side 41 of the one joint plate 4 is attached. and the one end side 51 of the other joint plate 5 may be fixed by welding to the one side surface 12 of the metallic column 10 .
Although illustration is omitted, the other end side of the one joining plate 4 is exposed on the surface of the second fireproof covering portion 21 provided on both beam side surfaces 22X and 22Y of the wooden beam 20 facing each other. 42 , the other end 52 of the other joint plate 5 , both ends of the bolt 6 (one end 61 , the other end 62 ), and the surfaces of the nuts 45 , 55 are also formed with the first fireproof coatings 11 .

実施形態１に係る接合構造によれば、一方接合板４の一端側４１及び他方接合板５の一端側５１が第１の耐火被覆部１１を介さずに金属質柱１０に接合されて、かつ、一方接合板４の他端側４２及び他方接合板５の他端側５２が第２の耐火被覆部２１を介して木質梁２０に接合された接合構造としたので、第２の荷重支持部としての木質梁２０の梁端部２０ｅの表面に、固定手段としてのボルト６の一端側６１，他端側６２及びナット４５，５５を収容するための凹部を形成する必要がなくなり、このため、第２の荷重支持部としての木質梁２０の表面に当該凹部を形成するための座繰り加工を不要とでき、加工手間、加工コストを削減できる。
即ち、第１の荷重支持部としての金属質柱１０と当該金属質柱１０の表面を覆う第１の耐火被覆部１１とを有した第１の構造部材１と、第２の荷重支持部としての木質梁２０と当該木質梁２０の表面を覆う第２の耐火被覆部２１とを有した第２の構造部材２とを接合する接合構造において、木質梁２０の加工手間、加工コストを削減できる接合構造を提供できるようになった。
また、一方接合板４の一端側４１及び他方接合板５の一端側５１と金属質柱１０との接合作業、一方接合板４の他端側４２及び他方接合板５の他端側５２と第２の構造部材２と接合作業が容易になる。 According to the joint structure according to the first embodiment, the one end side 41 of the one joint plate 4 and the one end side 51 of the other joint plate 5 are joined to the metallic column 10 without interposing the first fireproof coating 11, and , the other end side 42 of the one joining plate 4 and the other end side 52 of the other joining plate 5 are joined to the wooden beam 20 via the second fireproof covering portion 21, so that the second load supporting portion It is no longer necessary to form recesses for accommodating the one end side 61 and the other end side 62 of the bolt 6 as fixing means and the nuts 45 and 55 on the surface of the beam end portion 20e of the wooden beam 20 as a fixing means. It is possible to eliminate the need for countersinking for forming the concave portion on the surface of the wooden beam 20 as the second load bearing portion, thereby reducing processing labor and processing costs.
That is, a first structural member 1 having a metallic column 10 as a first load bearing portion and a first fireproof coating portion 11 covering the surface of the metallic column 10, and a second load bearing portion In the joint structure that joins the wooden beam 20 and the second structural member 2 having the second fireproof coating 21 that covers the surface of the wooden beam 20, the processing labor and processing cost of the wooden beam 20 can be reduced. We are now able to provide joint structures.
Also, the work of joining the one end side 41 of the one joint plate 4 and the one end side 51 of the other joint plate 5 to the metallic column 10, the other end side 42 of the one joint plate 4 and the other end side 52 of the other joint plate 5 to the second joint plate 5, and 2, the structural member 2 and joining work are facilitated.

実施形態２
実施形態１では、第１の荷重支持部としての金属質柱１０と第２の荷重支持部としての木質梁２０との接合構造を例示したが、例えば金属質柱１０に接合された図外の第１の荷重支持部としての金属質梁と当該金属質梁の表面を覆う第１の耐火被覆部とを有した第１の構造部材と、第２の荷重支持部としての木質梁と当該木質梁の表面を覆う第２の耐火被覆部とを有した第２の構造部材とを接合する接合構造においても、実施形態１と同様に構成できる。
この場合、一方接合板４の一端側４１と他方接合板５の一端側５１とを、例えば、第１の荷重支持部としての金属質梁を形成するＨ形鋼のウェブに溶接で固定するとともに、実施形態１と同様に、一方接合板４の他端側４２及び他方接合板５の他端側５２を第２の構造部材の梁端部側に固定すればよい。
以上説明した実施形態２に係る第１の構造部材と第２の構造部材との接合構造であっても、実施形態１と同様な効果が得られる。 Embodiment 2
In Embodiment 1, the joint structure of the metallic column 10 as the first load supporting portion and the wooden beam 20 as the second load supporting portion was exemplified. A first structural member having a metallic beam as a first load bearing part and a first fireproof coating covering the surface of the metallic beam, a wooden beam as a second load bearing part, and the wooden beam The joining structure for joining the second structural member having the second fireproof coating covering the surface of the beam can also be configured in the same manner as in the first embodiment.
In this case, one end side 41 of one joint plate 4 and one end side 51 of the other joint plate 5 are fixed by welding to, for example, a web of H-section steel forming a metallic beam as a first load bearing portion. As in the first embodiment, the other end side 42 of the one joint plate 4 and the other end side 52 of the other joint plate 5 may be fixed to the beam end side of the second structural member.
Even with the joint structure of the first structural member and the second structural member according to the second embodiment described above, effects similar to those of the first embodiment can be obtained.

尚、上記では、一方接合板４及び他方接合板５として、Ｌ形鋼板を使用した例を示したが、一方接合板４及び他方接合板５としては、Ｌ形鋼板以外の、例えば、断面Ｔ字のＴ形鋼板、平鋼板等を使用しても良い。 In the above, an example of using an L-shaped steel plate as the one joint plate 4 and the other joint plate 5 was shown, but as the one joint plate 4 and the other joint plate 5, a steel plate other than the L-shaped steel plate, for example, a cross section T A T-shaped steel plate, a flat steel plate, or the like may be used.

また、上記では、第１固定手段として、溶接を使用した例を示したが、第１固定手段としては、一方接合板の一端側４１と金属質柱１０や金属質梁とを固定するボルト及びナット、あるいは、他方接合板の一端側５１と金属質柱１０や金属質梁とを固定するボルト及びナットを用いてもよい。 In the above description, an example of using welding as the first fixing means is shown. A nut, or a bolt and nut for fixing the one end side 51 of the other joining plate and the metallic column 10 or the metallic beam may be used.

また、上記では、互いに対向する第１の荷重支持部１０と第２の耐火被覆部２１との間、例えば、図２，図３に示すように、互いに対向する金属質柱１０の一側面１２と木質梁２０の梁端面２４に設けられた第２の耐火被覆部２１との間の間隔Ｓを第１の耐火被覆部１１の厚さに対応させた間隔に設定した構成を例示したが、当該間隔Ｓを耐火被覆部１１の厚さよりも大きい間隔にして、第２の耐火被覆部２１と第１の耐火被覆部１１との間に空間を設けるようにしてもよい。
即ち、互いに対向する第１の荷重支持部と第２の耐火被覆部２１との間を離間させた構造とすればよく、この場合、互いに対向する第１の荷重支持部と第２の耐火被覆部２１との間の間隔Ｓを、耐火被覆部１１を介して離間させた構成、あるいは、互いに対向する第１の荷重支持部と第２の耐火被覆部２１との間隔Ｓを、耐火被覆部１１と空間とで形成した構成としてもよい。
このようにすれば、第１の荷重支持部と第２の荷重支持部と間の熱の伝達を、より効果的に抑制できるようになる。 Further, in the above description, between the first load supporting portion 10 and the second fireproof coating portion 21 facing each other, for example, as shown in FIGS. and the second fireproof coating 21 provided on the beam end surface 24 of the wooden beam 20 is set to a space corresponding to the thickness of the first fireproof coating 11. A space may be provided between the second fireproof coating 21 and the first fireproof coating 11 by setting the interval S to be larger than the thickness of the fireproof coating 11 .
That is, the first load bearing portion and the second fireproof coating 21 facing each other may be separated from each other. In this case, the first load bearing portion and the second fireproof coating facing each other may be provided. The space S between the part 21 is separated via the fireproof coating part 11, or the space S between the first load supporting part and the second fireproof coating part 21 facing each other is set by the fireproof coating part 11 and a space may be used.
By doing so, it becomes possible to more effectively suppress the heat transfer between the first load supporting portion and the second load supporting portion.

また、各実施形態では、第１の荷重支持部が金属質柱１０又は金属質梁であり、第２の荷重支持部が木質梁２０である場合を例にして説明したが、本発明の接合構造は、第１の荷重支持部が金属質梁であり、第２の構造部材の第２の荷重支持部が木質柱又は木質梁である場合であっても適用可能である。
この場合、例えば、木質柱又は木質梁の表面を覆う第２の耐火被覆部の表面側に一方接合板及び他方接合板の他端側を配置して、木質柱又は木質梁及びこれら接合板の他端側に形成されたボルト通し用貫通孔に貫通させたボルトの一端側及び他端側にナットを締結して一方接合板及び他方接合板の他端側を第２の構造部材に固定するとともに、一方接合板及び他方接合板の一端側を金属質梁を形成するＨ形鋼のウェブに溶接等で固定した接合構造とすればよい。 Further, in each embodiment, the case where the first load supporting portion is the metallic column 10 or the metallic beam and the second load supporting portion is the wooden beam 20 has been described as an example. The structure is applicable even if the first load-bearing part is a metal beam and the second load-bearing part of the second structural member is a wooden post or wooden beam.
In this case, for example, one joint plate and the other joint plate are placed on the surface side of the second fireproof coating covering the surface of the wooden column or wooden beam, and the wooden column or wooden beam and these joint plates Nuts are fastened to one end side and the other end side of bolts passed through bolt through holes formed on the other end side, and the other end sides of the one joint plate and the other joint plate are fixed to the second structural member. At the same time, the joint structure may be such that one end side of the one joint plate and the other joint plate is fixed by welding or the like to the web of H-shaped steel forming the metallic beam.

尚、上記では、第１の荷重支持部及び第２の荷重支持部のうちの、一方が金属質の荷重支持部、他方が木質の荷重支持部の場合を例示したが、第１の荷重支持部及び第２の荷重支持部は、金属質や木質以外の荷重支持部であってもよい。例えば、第１の荷重支持部及び第２の荷重支持部のうちの、一方が金属質の荷重支持部、他方がコンクリートの荷重支持部であってもよい。
即ち、本発明の接合構造では、第１の荷重支持部と第２の荷重支持部とが、それぞれ、異なる材料により形成された荷重支持部であればよい。 In the above description, one of the first load supporting portion and the second load supporting portion is a metallic load supporting portion, and the other is a wooden load supporting portion. The portion and the second load bearing portion may be load bearing portions other than metal or wood. For example, one of the first load-bearing part and the second load-bearing part may be a metal load-bearing part and the other may be a concrete load-bearing part.
That is, in the joint structure of the present invention, the first load supporting portion and the second load supporting portion may be load supporting portions made of different materials.

また、本発明は、柱、梁以外の構造部材の接合構造にも適用可能である。
例えば、柱と耐震壁との接合構造、柱と床との接合構造、耐震壁と床との接合構造等にも適用可能である。 In addition, the present invention can also be applied to joint structures of structural members other than columns and beams.
For example, it can be applied to a joint structure between a column and a seismic wall, a joint structure between a column and a floor, a joint structure between a seismic wall and a floor, and the like.

１第１の構造部材、２第２の構造部材、３接合手段、４一方接合板、
５他方接合板、６ボルト（軸材）、１０金属質柱（第１の荷重支持部）、
１１第１の耐火被覆部、２０木質梁（第２の荷重支持部）、２０ｅ梁端部、
２１第２の耐火被覆部、４５，５５ナット（締結部材）。 1 first structural member, 2 second structural member, 3 joining means, 4 one joining plate,
5 other joint plate, 6 bolt (shaft member), 10 metallic column (first load supporting portion),
11 first fireproof coating, 20 wooden beam (second load bearing part), 20e beam end,
21 second refractory coating, 45, 55 nut (fastening member).

Claims

a first structural member having a first load-bearing portion and a first refractory coating overlying a surface of the first load-bearing portion;
a second structural member having a second load-bearing portion and a second refractory coating overlying the second load-bearing portion;
joining means for joining the first structural member and the second structural member;
the first load-bearing part and the second load-bearing part are load-bearing parts made of different materials;
The joining means is such that one end side is joined to the first load bearing portion without interposing the first fireproof coating portion, and the other end side is joined to the second load bearing portion through the second fireproof coating portion. A joining structure of structural members characterized by:

2. The joining structure of structural members according to claim 1, wherein the first load bearing portion and the second fireproof covering portion facing each other are separated from each other.

3. The joining structure of structural members according to claim 1, wherein the first load bearing portion is a metallic column or a metallic beam, and the second load bearing portion is a wooden beam.

The joining means is
a joining plate and a fixing means,
The joint plate is
a one joint plate provided along the surface of the second fireproof coating provided so as to cover one side surface of the beam end of the wooden beam;
a second joining plate provided along the surface of the second fireproof coating provided to cover the other side facing the one side of the beam end of the wooden beam,
The fixing means are
a first fixing means for fixing one end side of the one joint plate or one end side of the other joint plate to the first load supporting portion;
a second fixing means for fixing the other end side of the one joint plate and the other end side of the other joint plate to the second structural member;
The second fixing means is
The beam end between the surface of the second fireproof coating covering one side of the beam end of the wooden beam and the surface of the second fireproof coating covering the other side of the beam end of the wooden beam and the second Structural member-side through holes formed in the second structural member so as to penetrate the fireproof coating part of 2, and joint plate-side through holes formed in the other end side of one joint plate and the other end side of the other joint plate. A through-hole for passing a shaft member configured to communicate with the
A shaft member provided to pass through the through-hole for passing the shaft member;
a fastening member fastened to one end side of the shaft member penetrating through the second fireproof covering portion covering one side surface of the beam end portion of the wooden beam and to the other end side of the one joining plate;
A fastening member fastened to the other end side of the shaft member passing through the second fireproof covering covering the other side surface of the beam end of the wooden beam and to the other end side of the other joint plate. The joining structure of the structural member according to claim 3.

5. The joining structure of structural members according to claim 1, wherein the second fire-resistant coating is composed of one or more fire-resistant coating layers containing gypsum board.