JP2014114672A - Method of manufacturing fire-resistant woody structure member - Google Patents
Method of manufacturing fire-resistant woody structure member Download PDFInfo
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- JP2014114672A JP2014114672A JP2012271496A JP2012271496A JP2014114672A JP 2014114672 A JP2014114672 A JP 2014114672A JP 2012271496 A JP2012271496 A JP 2012271496A JP 2012271496 A JP2012271496 A JP 2012271496A JP 2014114672 A JP2014114672 A JP 2014114672A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 239000002023 wood Substances 0.000 claims description 98
- 239000011162 core material Substances 0.000 claims description 69
- 238000000034 method Methods 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 description 83
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000004567 concrete Substances 0.000 description 6
- 238000013022 venting Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 241000534018 Larix kaempferi Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
Description
本発明は、燃え止まり層を有する耐火木質構造部材の製造方法に関する。 The present invention relates to a method for manufacturing a fire-resistant wood structure member having a flame stop layer.
近年、耐火性を有する木質構造部材が提案されている。例えば、特許文献１には、木材からなる荷重支持層と、荷重支持層の外側に配置される燃え止まり層と、燃え止まり層の外側に配置される燃え代層とを有する複合木質構造材が開示されている。 In recent years, a wooden structure member having fire resistance has been proposed. For example, Patent Document 1 discloses a composite wood structure material having a load supporting layer made of wood, a burning stop layer disposed outside the load supporting layer, and a burning allowance layer disposed outside the burning stop layer. It is disclosed.
燃え止まり層は、モルタルバー等の高熱容量材と木材単材とを交互に配置し、これらを接着剤で接着して一体化することによって形成されているが、木材単材に対して高熱容量材を隙間なく組み付けなければならず、また、高熱容量材を高い寸法精度で製作する必要がある。すなわち、燃え止まり層の形成に手間が掛かる。 The flame stop layer is formed by alternately arranging high-heat capacity materials such as mortar bars and single wood materials, and bonding them together with an adhesive to integrate them. The materials must be assembled without gaps, and high heat capacity materials must be manufactured with high dimensional accuracy. That is, it takes time to form the flame-stopping layer.
本発明は係る事実を考慮し、燃え止まり層を効率よく形成することができる耐火木質構造部材の製造方法を提供することを課題とする。 This invention considers the fact which concerns, and makes it a subject to provide the manufacturing method of the fire-resistant wooden structure member which can form a flame stop layer efficiently.
請求項１に記載の発明は、荷重を支持する木製の心材の外周面に、収容部を備えた木質層を設ける工程と、前記収容部に燃え止まり材を充填して燃え止まり層を形成する工程と、を有する耐火木質構造部材の製造方法である。 According to the first aspect of the present invention, a step of providing a wood layer provided with a housing portion on the outer peripheral surface of a wooden core material that supports a load, and a fire-stopping layer is formed by filling the housing portion with a fire-stopping material. And a method for producing a fire-resistant wooden structure member.
請求項１に記載の発明では、燃え止まり材を収容部に充填することによって燃え止まり層を形成する。これにより、燃え止まり部材としてのプレキャスト製のモルタルバーを木質層に形成された凹部に組み付ける従来の製造方法において必要とされていた、凹部に隙間なくモルタルバーを組み付ける作業や、高い寸法精度でのモルタルバーの製作が不要となる。すなわち、従来の製造方法よりも効率よく燃え止まり層を形成することができる。これにより、燃え止まり層の形成に係わる作業の工数を減らすことができ、コストダウンに貢献することができる。 In the first aspect of the present invention, the flame stop layer is formed by filling the housing portion with the flame stop material. As a result, the work of assembling the mortar bar with no gap in the recess, which is required in the conventional manufacturing method for assembling the precast mortar bar as a flame stop member to the recess formed in the wood layer, or with high dimensional accuracy There is no need to make a mortar bar. That is, it is possible to form the flame stop layer more efficiently than the conventional manufacturing method. Thereby, the man-hour of the operation | work regarding formation of a flame stop layer can be reduced, and it can contribute to a cost reduction.
請求項２に記載の発明は、請求項１に記載の耐火木質構造部材の製造方法において、前記収容部は、前記木質層に形成された凹部であり、前記燃え止まり材は、前記凹部に塗り付けられる又は圧入されることによって該凹部に充填される。 According to a second aspect of the present invention, in the method for manufacturing a refractory wood structure member according to the first aspect, the accommodating portion is a concave portion formed in the wooden layer, and the stop material is applied to the concave portion. The recess is filled by being attached or press-fitted.
請求項２に記載の発明では、燃え止まり材を、木質層に形成された凹部に塗り付ける又は圧入することによって燃え止まり層を形成する。これにより、従来の製造方法よりも、より効率よく燃え止まり層を形成することができる。 In the invention described in claim 2, the flame-stopping layer is formed by applying or press-fitting the flame-stopping material into the recess formed in the wood layer. Thereby, it is possible to form the flame-stopping layer more efficiently than the conventional manufacturing method.
請求項３に記載の発明は、請求項１又は２に記載の耐火木質構造部材の製造方法において、前記収容部には、前記心材に固定されたアンカー部材が設けられている。 According to a third aspect of the present invention, in the method for manufacturing a refractory wood structure member according to the first or second aspect, an anchor member fixed to the core material is provided in the housing portion.
請求項３に記載の発明では、アンカー部材により、収容部に充填された燃え止まり材が収容部から脱落するのを防ぐことができる。 In the invention according to claim 3, the anchor member can prevent the non-flammable material filled in the housing portion from dropping out of the housing portion.
本発明は上記構成としたので、燃え止まり層を効率よく形成することができる。 Since this invention was set as the said structure, a flame stop layer can be formed efficiently.
図を参照しながら、本発明の第１実施形態を説明する。まず、本発明の第１実施形態に係る耐火木質構造部材の製造方法について説明する。 A first embodiment of the present invention will be described with reference to the drawings. First, the manufacturing method of the fireproof wood structure member which concerns on 1st Embodiment of this invention is demonstrated.
図１の横断面図には、本発明の第１実施形態に係る耐火木質構造部材の製造方法により製造される、耐火木質構造部材としての梁部材１０が示されている。 The cross-sectional view of FIG. 1 shows a beam member 10 as a fire-resistant wood structure member manufactured by the method for manufacturing a fire-resistant wood structure member according to the first embodiment of the present invention.
梁部材１０は、荷重を支持する木製の心材としての梁心材１２と、梁心材１２の周囲を取り囲む燃え止まり層１４と、燃え止まり層１４の周囲を取り囲む木製の燃え代層１６とを備えている。 The beam member 10 includes a beam core 12 as a wooden core that supports a load, a flame stop layer 14 that surrounds the periphery of the beam core 12, and a wooden burnup layer 16 that surrounds the periphery of the flame stop layer 14. Yes.
梁部材１０は、コンクリート製の床スラブ（不図示）を支持する梁であり、梁部材１０の上にコンクリート製の床スラブを設けることにより、梁部材１０（梁心材１２）の上面が床スラブのコンクリート面で覆われて耐火性が確保される。よって、梁部材１０の上部には、燃え止まり層１４及び燃え代層１６が形成されていない。 The beam member 10 is a beam that supports a concrete floor slab (not shown). By providing a concrete floor slab on the beam member 10, the upper surface of the beam member 10 (beam core 12) is a floor slab. It is covered with concrete surface to ensure fire resistance. Therefore, the burning stop layer 14 and the burning allowance layer 16 are not formed on the upper portion of the beam member 10.
梁心材１２及び燃え代層１６は、米松、唐松、檜、杉、あすなろ等の一般の木造建築に用いられる木材（以下、「一般木材」とする）によって形成されている。なお、梁心材１２及び燃え代層１６は、木材によって形成されていればよい。例えば、一般木材を板状に製材加工した板部材同士を接着剤により接着して一体化した集成材により形成されていてもよい。 The beam core material 12 and the burning allowance layer 16 are made of wood (hereinafter referred to as “general wood”) used in general wooden construction such as Yonematsu, Karamatsu, firewood, cedar, and Asunaro. In addition, the beam core material 12 and the burning allowance layer 16 should just be formed with the timber. For example, you may form with the laminated material which adhere | attached and integrated the board members which saw-processed general wood into the plate shape with the adhesive agent.
燃え代層１６は、燃え止まり層１４の各外周面（左側面、右側面、及び底面）を覆うパネル部材１８Ａ、１８Ｂ、１８Ｃを有して構成されている。 The burning allowance layer 16 includes panel members 18A, 18B, and 18C that cover the outer peripheral surfaces (the left side surface, the right side surface, and the bottom surface) of the burning stop layer 14.
燃え止まり層１４は、一般木材を板状に加工した板部材により形成された木質部２０と、燃え止まり材としてのモルタルＭを硬化させて形成したモルタル部２２とを、梁心材１２の外周面に沿った周方向２４（梁部材１０の梁成方向２６と梁幅方向２８）へ交互に複数配置することによって形成されている。また、図１のＡ−Ａ断面図である図２に示すように、木質部２０及びモルタル部２２は、長尺の板状に形成されており、梁部材１０の梁長方向３０に沿って設けられている。 The flame stop layer 14 includes a wood part 20 formed by a plate member obtained by processing a general wood into a plate shape, and a mortar part 22 formed by curing a mortar M as a flame stop material on the outer peripheral surface of the beam core 12. A plurality of them are alternately arranged in the circumferential direction 24 (the beam forming direction 26 and the beam width direction 28 of the beam member 10). Moreover, as shown in FIG. 2 which is AA sectional drawing of FIG. 1, the wood part 20 and the mortar part 22 are formed in the elongate plate shape, and are provided along the beam length direction 30 of the beam member 10. As shown in FIG. It has been.
また、図１に示すように、間隔をあけて隣り合う木質部２０の間に形成されて溝を構成する、収容部としての凹部３２の内には、梁心材１２にねじ込まれて固定されたアンカー部材としてのネジ部材３４が設けられている。ネジ部材３４の、梁心材１２の外周面から突出している突出部３６は、モルタル部２２中に埋設されている。 Further, as shown in FIG. 1, anchors that are screwed into and fixed to the beam core 12 are formed in the recesses 32 that are formed between the adjacent wood parts 20 with a space therebetween to form a groove. A screw member 34 as a member is provided. A protruding portion 36 of the screw member 34 protruding from the outer peripheral surface of the beam core 12 is embedded in the mortar portion 22.
本発明の第１実施形態に係る耐火木質構造部材の製造方法による梁部材１０の製造は、まず、図３（ａ）の横断面図に示すように、梁心材１２の外周面に接着剤や釘等により木質部２０を取り付ける。木質部２０は、木質部２０の間に凹部３２を形成するようにして、周方向２４に間隔をおいて複数配置する。これにより、梁心材１２の外周面に、凹部３２と木質部２０とを備えた木質層３８が形成される。 As shown in the cross-sectional view of FIG. 3 (a), first, the beam member 10 is manufactured by the method for manufacturing a fireproof wood structure member according to the first embodiment of the present invention. The wood part 20 is attached with a nail or the like. A plurality of the wood parts 20 are arranged at intervals in the circumferential direction 24 so as to form a recess 32 between the wood parts 20. Thereby, the wood layer 38 provided with the recessed part 32 and the wood part 20 is formed in the outer peripheral surface of the beam core material 12.
次に、図３（ｂ）の横断面図に示すように、梁心材１２の外周面から突出部３６を突出させるようにして、梁心材１２にネジ部材３４をねじ込んで固定し、凹部３２内にネジ部材３４を設ける。 Next, as shown in the cross-sectional view of FIG. 3 (b), the projecting portion 36 is projected from the outer peripheral surface of the beam core 12, and a screw member 34 is screwed into the beam core 12 to be fixed. A screw member 34 is provided on the surface.
次に、図３（ｃ）の横断面図に示すように、燃え止まり材としてのモルタルＭを流動化した状態で凹部３２にコテ等により塗り付けて、凹部３２にモルタルＭを充填する。そして、モルタルＭが硬化してモルタル部２２となり、梁心材１２の外周面上に燃え止まり層１４が形成される。 Next, as shown in the cross-sectional view of FIG. 3 (c), the mortar M as a flame-stopping material is fluidized and applied to the concave portion 32 with a trowel or the like, and the concave portion 32 is filled with the mortar M. Then, the mortar M is cured to form the mortar portion 22, and the flame stop layer 14 is formed on the outer peripheral surface of the beam core 12.
最後に、図３（ｄ）の横断面図に示すように、燃え止まり層１４の外周面に接着剤や釘等によりパネル部材１８Ａ、１８Ｂ、１８Ｃを取り付ける。これにより、燃え止まり層１４の外周面に燃え代層１６が形成されて、梁部材１０が完成する。 Finally, as shown in the cross-sectional view of FIG. 3D, panel members 18A, 18B, and 18C are attached to the outer peripheral surface of the flame stop layer 14 with an adhesive, a nail, or the like. Thereby, the burning allowance layer 16 is formed in the outer peripheral surface of the flame stop layer 14, and the beam member 10 is completed.
次に、本発明の第１実施形態に係る耐火木質構造部材の製造方法、及びこの製造方法により製造された耐火木質構造部材の作用と効果について説明する。 Next, the manufacturing method of the fire-resistant wood structure member which concerns on 1st Embodiment of this invention, and the effect | action and effect of a fire-resistant wood structure member manufactured by this manufacturing method are demonstrated.
本発明の第１実施形態に係る耐火木質構造部材の製造方法では、図３（ｃ）に示すように、流動化した状態のモルタルＭを凹部３２に塗り付けて充填することによって燃え止まり層１４を形成する。 In the method for manufacturing a fire-resistant wood structure member according to the first embodiment of the present invention, as shown in FIG. 3 (c), the mortar M in a fluidized state is applied to the recess 32 and filled to fill the flame-stopping layer 14. Form.
これにより、燃え止まり層１４を容易に形成することができる。また、燃え止まり部材としてのプレキャスト製のモルタルバーを木質層３８に形成された凹部３２に組み付ける従来の製造方法において必要とされていた、凹部３２に隙間なくモルタルバーを組み付ける作業や、高い寸法精度でのモルタルバーの製作が不要となる。 Thereby, the flame stop layer 14 can be formed easily. In addition, assembling the mortar bar to the recess 32 without any gap, which is required in the conventional manufacturing method of assembling the precast mortar bar as a flame stop member to the recess 32 formed in the wood layer 38, high dimensional accuracy No need to make a mortar bar.
すなわち、従来の製造方法よりも効率よく燃え止まり層１４を形成することができる。これにより、燃え止まり層１４の形成に係わる作業の工数を減らすことができ、コストダウンに貢献することができる。 That is, the flame-stopping layer 14 can be formed more efficiently than the conventional manufacturing method. Thereby, the man-hour of the operation | work regarding formation of the flame stop layer 14 can be reduced, and it can contribute to a cost reduction.
また、図１に示すように、ネジ部材３４により、凹部３２に充填されたモルタルＭ（モルタルＭが硬化したモルタル部２２）が凹部３２から脱落するのを防ぐことができる。 Further, as shown in FIG. 1, the screw member 34 can prevent the mortar M (the mortar portion 22 in which the mortar M is cured) filled in the concave portion 32 from dropping from the concave portion 32.
さらに、耐火木質構造部材としての梁部材１０では、図１に示すように、火災が発生したときに火炎が燃え代層１６に着火し、燃え代層１６が燃焼する。そして、燃焼した燃え代層１６は炭化する。これにより、梁部材１０の外部から梁心材１２への熱伝達と酸素供給とを炭化した燃え代層１６が遮断し、燃え止まり層１４が吸熱するので、火災（加熱）時及び火災（加熱）終了後における梁心材１２の温度上昇を抑制することができる。これにより、火災（加熱）時の所定時間の間や、火災（加熱）が終了した後においてまで、梁部材１０を構造部材として機能させることができる。例えば、１時間耐火の建築物の場合には、１時間の火災（加熱）が終了した後においても、梁部材１０を構造部材として機能させることができる。 Further, in the beam member 10 as the fire-resistant wood structure member, as shown in FIG. 1, when a fire occurs, the flame ignites the burning allowance layer 16 and the burning allowance layer 16 burns. The burned combustion allowance layer 16 is carbonized. As a result, the burning allowance layer 16 that carbonizes heat transfer and oxygen supply from the outside of the beam member 10 to the beam core material 12 is cut off, and the burning stop layer 14 absorbs heat, so in the event of fire (heating) and fire (heating) The temperature rise of the beam core 12 after the end can be suppressed. Thereby, the beam member 10 can be functioned as a structural member for a predetermined time at the time of fire (heating) or after the fire (heating) is finished. For example, in the case of a one-hour fireproof building, the beam member 10 can function as a structural member even after the one-hour fire (heating) is completed.
以上、本発明の第１実施形態について説明した。 The first embodiment of the present invention has been described above.
なお、第１実施形態では、燃え止まり材としてのモルタルＭを流動化した状態で凹部３２にコテ等により塗り付けて、凹部３２にモルタルＭを充填する例を示したが、燃え止まり材としてのモルタルＭを流動化した状態で凹部３２に圧入することによって、凹部３２に充填してもよい。 In addition, in 1st Embodiment, although the mortar M as a flame stop material was fluidized and applied to the recessed part 32 with a trowel etc., and the mortar M was filled into the recessed part 32, the example was shown. The concave portion 32 may be filled by press-fitting the mortar M into the concave portion 32 in a fluidized state.
この場合の梁部材１０の製造は、まず、図４（ａ）の横断面図に示すように、梁心材１２の外周面に接着剤や釘等により木質部２０を取り付ける。木質部２０は、木質部２０の間に凹部３２を形成するようにして、周方向２４に間隔をおいて複数配置する。これにより、梁心材１２の外周面に、凹部３２と木質部２０とを備えた木質層３８が形成される。 In the manufacture of the beam member 10 in this case, first, as shown in the cross-sectional view of FIG. 4A, the wood portion 20 is attached to the outer peripheral surface of the beam core 12 with an adhesive, a nail, or the like. A plurality of the wood parts 20 are arranged at intervals in the circumferential direction 24 so as to form a recess 32 between the wood parts 20. Thereby, the wood layer 38 provided with the recessed part 32 and the wood part 20 is formed in the outer peripheral surface of the beam core material 12.
次に、図４（ｂ）の横断面図に示すように、梁心材１２の外周面から突出部３６を突出させるようにして、梁心材１２にネジ部材３４をねじ込んで固定し、凹部３２内にネジ部材３４を設ける。 Next, as shown in the cross-sectional view of FIG. 4B, the projecting portion 36 is projected from the outer peripheral surface of the beam core member 12, and a screw member 34 is screwed into the beam core member 12 to be fixed. A screw member 34 is provided on the surface.
次に、図４（ｃ）の横断面図に示すように、木質層３８の外周面に接着剤や釘等によりパネル部材１８Ａ、１８Ｂ、１８Ｃを取り付ける。これにより、木質層３８の外周面に燃え代層１６が形成される。また、凹部３２を燃え代層１６で覆うことによって、空洞４０が形成される。 Next, as shown in the cross-sectional view of FIG. 4C, panel members 18A, 18B, and 18C are attached to the outer peripheral surface of the wood layer 38 with an adhesive, a nail, or the like. Thereby, the burning allowance layer 16 is formed on the outer peripheral surface of the wood layer 38. Further, the cavity 40 is formed by covering the concave portion 32 with the burning allowance layer 16.
次に、図４（ｄ）の横断面図に示すように、燃え止まり材としてのモルタルＭを流動化した状態で空洞４０（凹部３２）に圧入することにより、空洞４０（凹部３２）にモルタルＭを充填する。そして、モルタルＭが硬化してモルタル部２２となり、梁心材１２の外周面上に燃え止まり層１４が形成されて、梁部材１０が完成する。 Next, as shown in the cross-sectional view of FIG. 4 (d), the mortar M serving as a flame-stopping material is pressed into the cavity 40 (recess 32) in a fluidized state, whereby the mortar is inserted into the cavity 40 (recess 32). Fill with M. And the mortar M hardens | cures and it becomes the mortar part 22, the flame stop layer 14 is formed on the outer peripheral surface of the beam core 12, and the beam member 10 is completed.
モルタルＭの空洞４０（凹部３２）への圧入は、図４（ｃ）のＢ−Ｂ断面図である図５（ａ）に示すように、梁長方向３０に対する空洞４０（凹部３２）の一方端部に形成された圧入孔４６からモルタルＭを圧入し、梁長方向３０に対する空洞４０（凹部３２）の他方端部に形成された排出孔４８からモルタルＭを排出することによって行なう。排出孔４８は、モルタルＭを圧入する際の空気抜き、及びモルタルＭの充填確認のために設けられている。空洞４０（凹部３２）の左右端面は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部５４、５６によって塞がれており、閉塞部５４に圧入孔４６が形成され、閉塞部５６に排出孔４８が形成されている。梁心材１２の下方に形成されている空洞４０（凹部３２）に対しても、同様の方法でモルタルＭを圧入する。説明の都合上、図２には、閉塞部５４、５６、圧入孔４６や、排出孔４８が省略されている。なお、閉塞部５４、５６は、木質部２０と違う材料によって形成してもよい。 The press-fitting of the mortar M into the cavity 40 (concave portion 32) is performed as shown in FIG. 5A, which is a sectional view taken along the line BB in FIG. The mortar M is press-fitted from the press-fit hole 46 formed at the end, and the mortar M is discharged from the discharge hole 48 formed at the other end of the cavity 40 (recess 32) with respect to the beam length direction 30. The discharge hole 48 is provided for air venting when the mortar M is press-fitted and for confirming the filling of the mortar M. The left and right end surfaces of the cavity 40 (concave portion 32) are formed of the same material as that of the wood portion 20 and are closed by closed portions 54 and 56 provided integrally with the wood portion 20, and a press-fit hole 46 is formed in the close portion 54. A discharge hole 48 is formed in the blocking portion 56. The mortar M is pressed into the cavity 40 (recess 32) formed below the beam core 12 by the same method. For convenience of explanation, the closing portions 54 and 56, the press-fit hole 46, and the discharge hole 48 are omitted in FIG. In addition, you may form the obstruction | occlusion parts 54 and 56 with the material different from the wood part 20. FIG.
圧入孔４６及び排出孔４８は、空洞４０（凹部３２）にモルタルＭを圧入できれば、どのような位置に設けてもよい。例えば、図５（ｂ）、（ｃ）に示すように、圧入孔４６及び排出孔４８を設けてもよい。 The press-fitting hole 46 and the discharge hole 48 may be provided at any position as long as the mortar M can be press-fitted into the cavity 40 (recess 32). For example, as shown in FIGS. 5B and 5C, a press-fit hole 46 and a discharge hole 48 may be provided.
図５（ｂ）では、梁長方向３０へ２つの空洞４０（凹部３２）を配置し、各空洞４０（凹部３２）において、梁長方向３０に対する一方端部に形成された圧入孔４６からモルタルＭを圧入し、梁長方向３０に対する他方端部に形成された排出孔４８からモルタルＭを排出することにより、空洞４０（凹部３２）にモルタルＭを充填する。空洞４０（凹部３２）の左右端面は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部５４、５６、５８によって塞がれており、圧入孔４６及び排出孔４８は、燃え代層１６に形成されている。梁心材１２の下方に形成されている空洞４０（凹部３２）に対しても、同様の方法でモルタルＭを圧入する。なお、閉塞部５４、５６、５８は、木質部２０と違う材料によって形成してもよい。 In FIG. 5B, two cavities 40 (concave portions 32) are arranged in the beam length direction 30, and in each of the cavities 40 (concave portions 32), mortar is formed from press-fit holes 46 formed at one end with respect to the beam length direction 30. The mortar M is filled into the cavity 40 (recess 32) by press-fitting M and discharging the mortar M from the discharge hole 48 formed at the other end with respect to the beam length direction 30. The left and right end surfaces of the cavity 40 (recess 32) are made of the same material as that of the wood part 20, and are closed by closing parts 54, 56, 58 provided integrally with the wood part 20, and the press-fitting hole 46 and the discharge hole 48 are It is formed in the burning allowance layer 16. The mortar M is pressed into the cavity 40 (recess 32) formed below the beam core 12 by the same method. In addition, you may form the obstruction | occlusion part 54,56,58 with the material different from the wood part 20. FIG.
図５（ｃ）では、図５（ａ）に示された空洞４０（凹部３２）を繋ぎ合わせて連通し、一続きの空洞４２（凹部４４）を形成している。そして、空洞４２（凹部４４）の一方端部（図５（ｃ）の左下）に形成された圧入孔からモルタルＭを圧入し、空洞４２（凹部４４）の他方端部（図５（ｃ）の左上）に形成された排出孔４８からモルタルＭを排出することにより、空洞４０（凹部３２）にモルタルＭを充填する。空洞４２（凹部４４）の左右端面は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部５４、５６によって塞がれており、最下部に位置する空洞４０（凹部３２）の左端面を閉塞する閉塞部５４に圧入孔４６が形成され、最上部に位置する空洞４０（凹部３２）の左端面を閉塞する閉塞部５４に排出孔４８が形成されている。梁心材１２の下方に形成されている空洞４０（凹部３２）に対しても、同様の方法でモルタルＭを圧入する。なお、閉塞部５４、５６は、木質部２０と違う材料によって形成してもよい。 In FIG. 5C, the cavity 40 (recess 32) shown in FIG. 5A is connected and connected to form a continuous cavity 42 (recess 44). Then, mortar M is press-fitted from a press-fitting hole formed at one end of the cavity 42 (recess 44) (lower left of FIG. 5C), and the other end of the cavity 42 (recess 44) (FIG. 5C). The mortar M is discharged from the discharge hole 48 formed in the upper left), thereby filling the cavity 40 (recess 32) with the mortar M. The left and right end surfaces of the cavity 42 (concave portion 44) are closed by closed portions 54 and 56 that are formed of the same material as the wood portion 20 and are provided integrally with the wood portion 20, and are located at the lowermost portion. A press-fitting hole 46 is formed in the closing part 54 that closes the left end surface of the gas, and a discharge hole 48 is formed in the closing part 54 that closes the left end surface of the cavity 40 (concave part 32) located at the top. The mortar M is pressed into the cavity 40 (recess 32) formed below the beam core 12 by the same method. In addition, you may form the obstruction | occlusion parts 54 and 56 with the material different from the wood part 20. FIG.
次に、本発明の第２実施形態に係る耐火木質構造部材の製造方法について説明する。 Next, the manufacturing method of the fire-resistant wood structure member based on 2nd Embodiment of this invention is demonstrated.
第２実施形態の説明において、第１実施形態と同じ構成のものは、同符号を付すると共に、適宜省略して説明する。図６の横断面図には、本発明の第２実施形態に係る耐火木質構造部材の製造方法により製造される、耐火木質構造部材としての梁部材５０が示されている。 In the description of the second embodiment, components having the same configurations as those of the first embodiment are denoted by the same reference numerals and are appropriately omitted. The cross-sectional view of FIG. 6 shows a beam member 50 as a fire-resistant wood structure member manufactured by the method for manufacturing a fire-resistant wood structure member according to the second embodiment of the present invention.
梁部材５０は、荷重を支持する木製の心材としての梁心材１２と、梁心材１２の周囲を取り囲む燃え止まり層５２と、燃え止まり層５２の周囲を取り囲む木製の燃え代層１６とを備えている。 The beam member 50 includes a beam core 12 as a wooden core that supports a load, a flame stop layer 52 that surrounds the periphery of the beam core 12, and a wooden burnup layer 16 that surrounds the periphery of the flame stop layer 52. Yes.
梁部材５０は、コンクリート製の床スラブ（不図示）を支持する梁であり、梁部材５０の上にコンクリート製の床スラブを設けることにより、梁部材５０（梁心材１２）の上面が床スラブのコンクリート面で覆われて耐火性が確保される。よって、梁部材５０の上部には、燃え止まり層５２及び燃え代層１６が形成されていない。 The beam member 50 is a beam that supports a concrete floor slab (not shown). By providing a concrete floor slab on the beam member 50, the upper surface of the beam member 50 (beam core 12) is a floor slab. It is covered with concrete surface to ensure fire resistance. Therefore, the burning stop layer 52 and the burning allowance layer 16 are not formed on the upper portion of the beam member 50.
燃え止まり層５２は、図６のＣ−Ｃ断面図である図７に示すように、木質部２０とモルタル部２２とを、梁長方向３０へ交互に複数配置することによって形成されている。木質部２０及びモルタル部２２は、長尺の板状に形成されており、梁部材５０の周方向２４（梁部材５０の梁成方向２６と梁幅方向２８）に沿って設けられている。 The flame stop layer 52 is formed by alternately arranging a plurality of wood portions 20 and mortar portions 22 in the beam length direction 30 as shown in FIG. The wood part 20 and the mortar part 22 are formed in a long plate shape, and are provided along the circumferential direction 24 of the beam member 50 (the beam forming direction 26 and the beam width direction 28 of the beam member 50).
また、間隔をあけて隣り合う木質部２０の間に形成されて溝を構成する、収容部としての凹部３２の内には、梁心材１２にねじ込まれて固定されたアンカー部材としてのネジ部材３４が設けられている。ネジ部材３４の、梁心材１２の外周面から突出している突出部３６は、モルタル部２２中に埋設されている。 In addition, a screw member 34 as an anchor member that is screwed into the beam core 12 and fixed therein is formed in a recess 32 as an accommodating portion that is formed between adjacent wood portions 20 with a space therebetween to form a groove. Is provided. A protruding portion 36 of the screw member 34 protruding from the outer peripheral surface of the beam core 12 is embedded in the mortar portion 22.
本発明の第２実施形態に係る耐火木質構造部材の製造方法による梁部材５０の製造は、梁部材１０の製造方法（図３（ａ）〜（ｄ）の製造手順）と略同じであるが、梁部材５０の製造では、梁心材１２の外周面に梁部材５０の周方向２４に沿って木質部２０を取り付ける。 Production of the beam member 50 by the method for producing a fire-resistant wood structure member according to the second embodiment of the present invention is substantially the same as the method for producing the beam member 10 (manufacturing procedure in FIGS. 3A to 3D). In the manufacture of the beam member 50, the wood portion 20 is attached to the outer peripheral surface of the beam core 12 along the circumferential direction 24 of the beam member 50.
梁部材５０の製造は、まず、梁心材１２の外周面に接着剤や釘等により木質部２０を取り付ける。木質部２０は、図７に示すように、木質部２０の間に凹部３２を形成するようにして、梁長方向３０に間隔をおいて複数配置する。これにより、梁心材１２の外周面に、凹部３２と木質部２０とを備えた木質層が形成される。 In the manufacture of the beam member 50, first, the wood portion 20 is attached to the outer peripheral surface of the beam core member 12 with an adhesive, a nail, or the like. As shown in FIG. 7, a plurality of the wood parts 20 are arranged at intervals in the beam length direction 30 so as to form a recess 32 between the wood parts 20. Thereby, the wood layer provided with the recessed part 32 and the wood part 20 is formed in the outer peripheral surface of the beam core material 12.
次に、梁心材１２の外周面から突出部３６を突出させるようにして、梁心材１２にネジ部材３４をねじ込んで固定し、凹部３２内にネジ部材３４を設ける。 Next, the projecting portion 36 is projected from the outer peripheral surface of the beam core member 12, and the screw member 34 is screwed and fixed to the beam core member 12, and the screw member 34 is provided in the recess 32.
次に、燃え止まり材としてのモルタルＭを流動化した状態で凹部３２にコテ等により塗り付けて、凹部３２にモルタルＭを充填する。そして、モルタルＭが硬化してモルタル部２２となり、梁心材１２の外周面上に燃え止まり層５２が形成される。 Next, in a state where the mortar M as a flame-stopping material is fluidized, the concave portion 32 is coated with a trowel or the like, and the concave portion 32 is filled with the mortar M. Then, the mortar M is cured to form the mortar portion 22, and the flame stop layer 52 is formed on the outer peripheral surface of the beam core 12.
最後に、燃え止まり層５２の外周面に接着剤や釘等によりパネル部材１８Ａ、１８Ｂ、１８Ｃを取り付ける。これにより、燃え止まり層５２の外周面に燃え代層１６が形成されて、梁部材５０が完成する。 Finally, panel members 18A, 18B, and 18C are attached to the outer peripheral surface of the flame stop layer 52 with an adhesive, a nail, or the like. Thereby, the burning allowance layer 16 is formed in the outer peripheral surface of the flame stop layer 52, and the beam member 50 is completed.
次に、本発明の第２実施形態に係る耐火木質構造部材の製造方法、及びこの製造方法により製造された耐火木質構造部材の作用と効果について説明する。 Next, the manufacturing method of the fire-resistant wood structure member which concerns on 2nd Embodiment of this invention, and the effect | action and effect of a fire-resistant wood structure member manufactured by this manufacturing method are demonstrated.
本発明の第２実施形態に係る耐火木質構造部材の製造方法、及びこの製造方法により製造された耐火木質構造部材は、本発明の第１実施形態に係る耐火木質構造部材の製造方法、及びこの製造方法により製造された耐火木質構造部材と略同様の作用と効果を得ることができる。 The manufacturing method of the fire-resistant wood structure member which concerns on 2nd Embodiment of this invention, and the fire-resistant wood structure member manufactured by this manufacturing method are the manufacturing method of the fire-resistant wood structure member which concerns on 1st Embodiment of this invention, and this Actions and effects substantially the same as those of the fire-resistant wood structure member manufactured by the manufacturing method can be obtained.
すなわち、本発明の第２実施形態に係る耐火木質構造部材の製造方法では、流動化した状態のモルタルＭを凹部３２に塗り付けて充填することにより燃え止まり層５２を形成するので、燃え止まり層５２を容易に形成することができ、従来の製造方法よりも効率よく燃え止まり層５２を形成することができる。 That is, in the method for manufacturing a fire-resistant wood structure member according to the second embodiment of the present invention, the burn-in layer 52 is formed by applying the fluidized mortar M to the recess 32 and filling it into the recess 32. 52 can be easily formed, and the burn-in layer 52 can be formed more efficiently than the conventional manufacturing method.
また、耐火木質構造部材としての梁部材５０では、図６に示すように、火災が発生したときに、燃焼し炭化した燃え代層１６が、梁部材５０の外部から梁心材１２への熱伝達と酸素供給とを遮断し、燃え止まり層５２が吸熱するので、火災（加熱）時及び火災（加熱）終了後における梁心材１２の温度上昇を抑制することができる。 Further, in the beam member 50 as the fire-resistant wooden structural member, as shown in FIG. 6, when a fire occurs, the burned and carbonized burnup layer 16 transfers heat from the outside of the beam member 50 to the beam core 12. Since the flame stop layer 52 absorbs heat, the temperature rise of the beam core material 12 at the time of fire (heating) and after the end of the fire (heating) can be suppressed.
以上、本発明の第２実施形態について説明した。 The second embodiment of the present invention has been described above.
なお、第２実施形態では、燃え止まり材としてのモルタルＭを流動化した状態で凹部３２にコテ等により塗り付けて、凹部３２にモルタルＭを充填する例を示したが、燃え止まり材としてのモルタルＭを流動化した状態で凹部３２に圧入することによって、凹部３２に充填してもよい。 In addition, in 2nd Embodiment, although the mortar M as a flame stop material was fluidized, the recessed part 32 was apply | coated with the iron etc., and the example which fills the recessed part 32 with the mortar M was shown, but as a flame stop material, The concave portion 32 may be filled by press-fitting the mortar M into the concave portion 32 in a fluidized state.
例えば、図８の横断面図に示すように、凹部３２を燃え代層１６で覆うことによって形成された空洞４０に、モルタルＭを流動化した状態で圧入することにより、空洞４０（凹部３２）にモルタルＭを充填する。 For example, as shown in the cross-sectional view of FIG. 8, the cavity 40 (recess 32) is formed by press-fitting the mortar M into the cavity 40 formed by covering the recess 32 with the burning allowance layer 16 in a fluidized state. Is filled with mortar M.
モルタルＭの空洞４０（凹部３２）への圧入は、空洞４０（凹部３２）の、梁心材１２下面中央部の下方付近に形成された圧入孔４６からモルタルＭを圧入し、梁成方向２６に対する空洞４０（凹部３２）の上端部に形成された排出孔４８からモルタルＭを排出することによって行なう。排出孔４８は、モルタルＭを圧入する際の空気抜き、及びモルタルＭの充填確認のために設けられている。 The mortar M is pressed into the cavity 40 (recess 32) by pressing the mortar M through a press-fit hole 46 formed near the lower center of the bottom surface of the beam core 12 in the cavity 40 (recess 32). The mortar M is discharged from the discharge hole 48 formed in the upper end portion of the cavity 40 (recess 32). The discharge hole 48 is provided for air venting when the mortar M is press-fitted and for confirming the filling of the mortar M.
空洞４０（凹部３２）の上端面は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部６０によって塞がれている。また、空洞４０（凹部３２）の中間部（梁心材１２下面中央部の下方付近）は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部６２によって塞がれており、空洞４０（凹部３２）が２つの空洞４０Ａ、４０Ｂ（凹部３２Ａ、３２Ｂ）に分けられている。圧入孔４６及び排出孔４８は、燃え代層１６に形成されている。排出孔４８は、閉塞部６０に形成されていてもよい。説明の都合上、図７には、閉塞部６０、６２、圧入孔４６や、排出孔４８が省略されている。なお、閉塞部６０、６２は、木質部２０と違う材料によって形成してもよい。 The upper end surface of the cavity 40 (concave portion 32) is closed by a closing portion 60 formed of the same material as that of the wood portion 20 and provided integrally with the wood portion 20. In addition, the middle part of the cavity 40 (recess 32) (near the lower center of the lower surface of the beam core 12) is closed by a closing part 62 formed of the same material as the wooden part 20 and provided integrally with the wooden part 20, The cavity 40 (recess 32) is divided into two cavities 40A and 40B (recesses 32A and 32B). The press-fitting hole 46 and the discharge hole 48 are formed in the burning allowance layer 16. The discharge hole 48 may be formed in the closing portion 60. For the convenience of explanation, the closing portions 60 and 62, the press-fit hole 46, and the discharge hole 48 are omitted in FIG. In addition, you may form the obstruction | occlusion parts 60 and 62 with a material different from the wooden part 20. FIG.
圧入孔４６及び排出孔４８は、空洞４０（凹部３２）にモルタルＭを圧入できれば、どのような位置に設けてもよい。例えば、図９の横断面図に示すように、圧入孔４６及び排出孔４８を設けてもよい。排出孔４８は、モルタルＭを圧入する際の空気抜き、及びモルタルＭの充填確認のために設けられている。 The press-fitting hole 46 and the discharge hole 48 may be provided at any position as long as the mortar M can be press-fitted into the cavity 40 (recess 32). For example, as shown in the cross-sectional view of FIG. 9, a press-fit hole 46 and a discharge hole 48 may be provided. The discharge hole 48 is provided for air venting when the mortar M is press-fitted and for confirming the filling of the mortar M.
図９では、空洞４０（凹部３２）の上端面は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部６０によって塞がれている。また、空洞４０（凹部３２）の、梁心材１２下面左右端部の下方付近は、木質部２０と同じ材料によって形成され木質部２０と一体に設けられた閉塞部６４、６６によって塞がれており、空洞４０（凹部３２）が３つの空洞４０Ｃ、４０Ｄ、４０Ｅ（凹部３２Ｃ、３２Ｄ、３２Ｅ）に分けられている。なお、閉塞部６０、６４、６６は、木質部２０と違う材料によって形成してもよい。 In FIG. 9, the upper end surface of the cavity 40 (concave portion 32) is closed by a closing portion 60 formed of the same material as that of the wood portion 20 and provided integrally with the wood portion 20. Further, the lower portion of the cavity 40 (concave portion 32) below the left and right ends of the lower surface of the beam core 12 is closed by blocking portions 64 and 66 formed of the same material as the wooden portion 20 and provided integrally with the wooden portion 20, The cavity 40 (recess 32) is divided into three cavities 40C, 40D, and 40E (recesses 32C, 32D, and 32E). In addition, you may form the obstruction | occlusion part 60,64,66 with a material different from the wooden part 20. FIG.
空洞４０Ｃ、４０Ｄ（凹部３２Ｃ、３２Ｄ）の下端部、及び空洞４０Ｅ（凹部３２Ｅ）の左端部には、圧入孔４６が形成されており、空洞４０Ｃ、４０Ｄ（凹部３２Ｃ、３２Ｄ）の上端部、及び空洞４０Ｅ（凹部３２Ｅ）の右端部には、排出孔４８が形成されている。圧入孔４６及び排出孔４８は、燃え代層１６に形成されている。排出孔４８は、天井部６０に形成されていてもよい。 A press-fit hole 46 is formed at the lower end of the cavities 40C and 40D (recesses 32C and 32D) and the left end of the cavity 40E (recess 32E), and the upper ends of the cavities 40C and 40D (recesses 32C and 32D), And the discharge hole 48 is formed in the right end part of the cavity 40E (recess 32E). The press-fitting hole 46 and the discharge hole 48 are formed in the burning allowance layer 16. The discharge hole 48 may be formed in the ceiling portion 60.
そして、各空洞４０Ｃ、４０Ｄ、４０Ｅ（凹部３２Ｃ、３２Ｄ、３２Ｅ）に形成された圧入孔４６からモルタルＭを圧入し、各空洞４０Ｃ、４０Ｄ、４０Ｅ（凹部３２Ｃ、３２Ｄ、３２Ｅ）に形成された排出孔４８からモルタルＭを排出して、各空洞４０Ｃ、４０Ｄ、４０Ｅ（凹部３２Ｃ、３２Ｄ、３２Ｅ）にモルタルＭを充填する。 Then, the mortar M is press-fitted from the press-fitting holes 46 formed in the cavities 40C, 40D, and 40E (recesses 32C, 32D, and 32E), and formed in the cavities 40C, 40D, and 40E (recesses 32C, 32D, and 32E). The mortar M is discharged from the discharge hole 48, and the mortar M is filled into the cavities 40C, 40D, and 40E (recesses 32C, 32D, and 32E).
また、例えば、梁長方向３０へ配置された複数の空洞４０（凹部３２）を繋ぎ合わせて連通し、一続きの空洞（凹部）を形成し、この空洞（凹部）の一方端部に形成された圧入孔からモルタルＭを圧入し、この空洞（凹部）の他方端部に形成された排出孔からモルタルＭを排出して、空洞４０（凹部３２）にモルタルＭを充填してもよい。 Further, for example, a plurality of cavities 40 (concave portions 32) arranged in the beam length direction 30 are connected and communicated to form a continuous cavity (concave portion), which is formed at one end of the cavity (concave portion). Alternatively, the mortar M may be press-fitted from the press-fitted hole, and the mortar M may be discharged from the discharge hole formed at the other end of the cavity (recess) to fill the cavity 40 (recess 32) with the mortar M.
以上、本発明の第１及び第２実施形態について説明した。 The first and second embodiments of the present invention have been described above.
なお、第１及び第２実施形態では、図２及び図７に示すように、燃え止まり層１４、５２を、木質部２０とモルタル部２２とによって形成した例を示したが、木質部２０は、木材によって形成されていればよい。また、モルタル部２２は、モルタルＭ以外の燃え止まり材によって形成された燃え止まり部としてもよい。燃え止まり部を形成する燃え止まり材は、塗り付けや圧入によって凹部３２に充填可能な材料であり、且つ、凹部３２に充填することにより、火炎及び熱の進入を抑えて燃え止まり効果を発揮する燃え止まり層を形成できるものであればよい。例えば、凹部３２に充填する燃え止まり材は、流動化した状態のモルタル、繊維補強セメント、石膏等の無機質材料等としてもよい。これらの材料は、一般木材よりも熱容量が大きいので、高い吸熱効果が期待できる。 In the first and second embodiments, as shown in FIGS. 2 and 7, the example in which the burn-out layers 14 and 52 are formed by the wood portion 20 and the mortar portion 22 has been shown, but the wood portion 20 is made of wood. As long as it is formed by. Moreover, the mortar part 22 is good also as a flame stop part formed of the flame stop material other than the mortar M. The flame-stop material forming the flame-stop portion is a material that can be filled into the concave portion 32 by painting or press-fitting, and by filling the concave portion 32, the flame-stopping effect is suppressed by suppressing the ingress of flame and heat. Any material that can form a flame stop layer may be used. For example, the dead-end material filled in the concave portion 32 may be an inorganic material such as mortar in a fluidized state, fiber-reinforced cement, or gypsum. Since these materials have a heat capacity larger than that of general wood, a high endothermic effect can be expected.
また、第１及び第２実施形態では、収容部としての凹部３２を溝により構成した例を示したが、収容部は、燃え止まり材が充填できるものであればよく、凹部３２を穴によって構成してもよい。例えば、図１０（ａ）に示すように、木質部２０と同じ材料で形成された板部材６８に、収容部としての円形の穴７０を複数形成して木質層７２を形成してもよいし、図１０（ｂ）に示すように、板部材６８に収容部としての四角形の穴７４を複数形成して木質層７６を形成してもよいし、図１０（ｃ）に示すように、板部材６８に、収容部としての溝７８を格子状に形成して木質層８０を形成してもよい。 Further, in the first and second embodiments, an example in which the concave portion 32 as the accommodating portion is configured by a groove has been shown. However, the accommodating portion may be anything that can be filled with a flame-stopping material, and the concave portion 32 is configured by a hole. May be. For example, as shown in FIG. 10A, a wooden layer 72 may be formed by forming a plurality of circular holes 70 as accommodating portions in a plate member 68 formed of the same material as the wooden portion 20, As shown in FIG. 10 (b), the wood layer 76 may be formed by forming a plurality of square holes 74 as receiving portions in the plate member 68, or as shown in FIG. 10 (c). 68, the wood layer 80 may be formed by forming grooves 78 as a storage portion in a lattice shape.
さらに、第１及び第２実施形態では、図１及び図６に示すように、梁部材１０、５０が、梁心材１２、燃え止まり層１４、５２、及び燃え代層１６を備えている例を示したが、梁部材１０、５０は、荷重を支持する木製の梁心材と、この梁心材の外周を取り囲む燃え止まり層とを有していればよい。例えば、梁部材１０、５０は、荷重を支持する木製の心材と、この心材の外周を取り囲む燃え止まり層とのみによって構成してもよいし、荷重を支持する木製の心材と、この心材の外周を取り囲む燃え止まり層と、この燃え止まり層の外周を取り囲む燃え代層以外の層（例えば、薄い木製の仕上げ材）とによって構成してもよい。 Furthermore, in the first and second embodiments, as shown in FIGS. 1 and 6, the beam members 10 and 50 include the beam core material 12, the non-burning layers 14 and 52, and the burning allowance layer 16. Although shown, the beam members 10 and 50 only need to have a wooden beam core material that supports a load and a flame stop layer surrounding the outer periphery of the beam core material. For example, the beam members 10 and 50 may be configured only by a wooden core material supporting a load and a flame stop layer surrounding the outer periphery of the core material, or a wooden core material supporting the load and an outer periphery of the core material. And a non-burning layer (for example, a thin wooden finish) surrounding the outer periphery of the non-burning layer.
また、第１及び第２実施形態では、図１及び図６に示すように、梁部材１０、５０の上部に、燃え止まり層１４、５２、及び燃え代層１６が形成されていない例を示したが、梁の上部にも耐火性を確保させる必要があるときには、梁部材１０、５０の上部（梁心材１２の上面）に、燃え止まり層１４、５２や燃え代層１６を形成してもよい。 Moreover, in 1st and 2nd embodiment, as shown in FIG.1 and FIG.6, the example which the burning stop layers 14, 52 and the burning allowance layer 16 are not formed in the upper part of the beam members 10 and 50 is shown. However, when it is necessary to ensure the fire resistance also on the upper part of the beam, even if the flame stop layers 14 and 52 and the burning allowance layer 16 are formed on the upper part of the beam members 10 and 50 (the upper surface of the beam core material 12). Good.
さらに、第１及び第２実施形態では、図１及び図６に示すように、アンカー部材をネジ部材３４とした例を示したが、硬化したモルタルＭ（モルタル部２２）が、凹部３２から脱落するのを防ぐことができればよい。例えば、アンカー部材を釘やスタッドボルトとしてもよい。また、アンカー部材以外の方法で、硬化したモルタルＭ（モルタル部２２）が凹部３２から脱落するのを防ぐようにしてもよい。例えば、図１１（ａ）及び図１１（ｂ）の断面図に示すように、木質部２０の側面８２に切欠き８４、８６を形成してもよいし、図１１（ｃ）及び図１１（ｄ）の断面図に示すように、梁心材１２の外周面８８に切欠き９０、９２を形成してもよい。また、例えば、木質部２０の側面８２や、梁心材１２の外周面８８に、粗面処理を施してもよいし、燃え止まり材に接着剤を混入してもよい。 Further, in the first and second embodiments, as shown in FIGS. 1 and 6, the example in which the anchor member is the screw member 34 has been shown. However, the hardened mortar M (the mortar portion 22) is dropped from the recess 32. It is sufficient if it can be prevented. For example, the anchor member may be a nail or a stud bolt. Moreover, you may make it prevent the hardened mortar M (mortar part 22) falling off from the recessed part 32 by methods other than an anchor member. For example, as shown in the cross-sectional views of FIGS. 11 (a) and 11 (b), notches 84 and 86 may be formed in the side surface 82 of the wood part 20, or FIGS. 11 (c) and 11 (d). As shown in the sectional view of FIG. 2, notches 90 and 92 may be formed on the outer peripheral surface 88 of the beam core 12. Further, for example, the side surface 82 of the wooden part 20 and the outer peripheral surface 88 of the beam core 12 may be roughened, or an adhesive may be mixed into the flame-retardant material.
また、第１及び第２実施形態では、図１及び図６に示すように、耐火木質構造部材の製造方法により製造される耐火木質構造部材を梁部材１０、５０とした例を示したが、図１２の斜視図に示すような耐火木質構造部材としての柱部材９４、図１３の斜視図に示すような耐火木質構造部材としての壁部材９６や、図１４の斜視図に示すような耐火木質構造部材としての床部材９８を、第１及び第２実施形態の耐火木質構造部材の製造方法により製造してもよい。 Moreover, in 1st and 2nd embodiment, as shown in FIG.1 and FIG.6, although the fire-resistant wooden structure member manufactured by the manufacturing method of a fire-resistant wooden structure member was shown as the beam members 10 and 50, A pillar member 94 as a fire-resistant wood structure member as shown in the perspective view of FIG. 12, a wall member 96 as a fire-resistant wood structure member as shown in the perspective view of FIG. 13, and a fire-resistant wood material as shown in the perspective view of FIG. You may manufacture the floor member 98 as a structural member with the manufacturing method of the fireproof wood structure member of 1st and 2nd embodiment.
図１２の柱部材９４は、荷重を支持する木製の心材としての柱心材１００と、梁心材１００の周囲を取り囲む燃え止まり層１０２と、燃え止まり層１０２の周囲を取り囲む木製の燃え代層１０４とを備えており、燃え止まり層１０２は、木質部２０とモルタル部２２とを交互に複数配置することによって形成されているので、第１及び第２実施形態で示した燃え止まり層１４の形成方法を用いて、柱部材９４の燃え止まり層１０２を形成することができる。 The column member 94 of FIG. 12 includes a column core material 100 as a wooden core material that supports a load, a flame stop layer 102 that surrounds the periphery of the beam core material 100, and a wooden burn allowance layer 104 that surrounds the periphery of the flame stop layer 102. Since the flame stop layer 102 is formed by alternately arranging a plurality of the wood parts 20 and the mortar parts 22, the method for forming the flame stop layer 14 shown in the first and second embodiments is used. By using it, the burn-out layer 102 of the column member 94 can be formed.
図１３の壁部材９６は、荷重を支持する木製の心材としての壁心材１０６と、壁心材１０６の左右側面を覆う燃え止まり層１０８と、燃え止まり層１０８の左右側面を覆う木製の燃え代層１１０とを備えており、燃え止まり層１０８は、木質部２０とモルタル部２２とを交互に複数配置することによって形成されているので、第１及び第２実施形態で示した燃え止まり層１４の形成方法を用いて、壁部材９６の燃え止まり層１０８を形成することができる。 The wall member 96 in FIG. 13 includes a wall core material 106 as a wooden core material that supports a load, a flame stop layer 108 that covers the left and right side surfaces of the wall core material 106, and a wood burn margin layer that covers the left and right sides of the flame stop layer 108. 110, and the non-burning layer 108 is formed by alternately arranging a plurality of wood portions 20 and mortar portions 22, so that the non-burning layer 14 shown in the first and second embodiments is formed. The method can be used to form the burnout layer 108 of the wall member 96.
図１４の床部材９８は、荷重を支持する木製の心材としての床心材１１２と、床心材１１２の上下面を覆う燃え止まり層１１４と、燃え止まり層１１４の上下面を覆う木製の燃え代層１１６とを備えており、燃え止まり層１１４は、木質部２０とモルタル部２２とを交互に複数配置することによって形成されているので、第１及び第２実施形態で示した燃え止まり層１４の形成方法を用いて、床部材９８の燃え止まり層１１４を形成することができる。 The floor member 98 in FIG. 14 includes a floor core material 112 as a wooden core material that supports a load, a flame stop layer 114 that covers the upper and lower surfaces of the floor core material 112, and a wood burn margin layer that covers the upper and lower surfaces of the flame stop layer 114. 116, and the non-burning layer 114 is formed by alternately arranging a plurality of the wood parts 20 and the mortar parts 22, so that the non-burning layer 14 shown in the first and second embodiments is formed. The method can be used to form the dead end layer 114 of the floor member 98.
以上、本発明の第１及び第２実施形態について説明したが、本発明はこうした実施形態に何等限定されるものでなく、第１及び第２実施形態を組み合わせて用いてもよいし、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 The first and second embodiments of the present invention have been described above. However, the present invention is not limited to these embodiments, and the first and second embodiments may be used in combination. Needless to say, the present invention can be implemented in various forms without departing from the gist of the invention.
１０、５０ 梁部材（耐火木質構造部材）
１２ 梁心材（心材）
１４、５２、１０２、１０８、１１４ 燃え止まり層
３２、３２Ａ、３２Ｂ、３２Ｃ、３２Ｄ、３２Ｅ 凹部（収容部）
３４ ネジ部材（アンカー部材）
３８、７２、７６、８０ 木質層
７０、７４ 穴（凹部、収容部）
７８ 溝（凹部、収容部）
９４ 柱部材（耐火木質構造部材）
９６ 壁部材（耐火木質構造部材）
９８ 床部材（耐火木質構造部材）
１００ 柱心材（心材）
１０６ 壁心材（心材）
１１２ 床心材（心材）
Ｍ モルタル（燃え止まり材）
10, 50 Beam members (fire-resistant wooden structural members)
12 Beam core (core)
14, 52, 102, 108, 114 Flame stop layer 32, 32A, 32B, 32C, 32D, 32E Concavity (container)
34 Screw member (anchor member)
38, 72, 76, 80 Wood layer 70, 74 Hole (recessed part, receiving part)
78 Groove (recess, receiving part)
94 Pillar member (fireproof wood structure member)
96 Wall member (fireproof wood structure member)
98 Floor members (fire-resistant wooden structural members)
100 Pillar core (core)
106 Wall core material (heart material)
112 Floor core material (heart material)
M mortar (fire-stopping material)
Claims (3)
前記収容部に燃え止まり材を充填して燃え止まり層を形成する工程と、
を有する耐火木質構造部材の製造方法。 A step of providing a wood layer provided with a housing portion on the outer peripheral surface of a wooden core material supporting a load;
Filling the containment part with a fire-stop material to form a fire-stop layer;
A method for producing a fire-resistant wooden structural member having
前記燃え止まり材は、前記凹部に塗り付けられる又は圧入されることによって該凹部に充填される請求項１に記載の耐火木質構造部材の製造方法。 The accommodating portion is a recess formed in the wood layer;
The method for manufacturing a fire-resistant woody structure member according to claim 1, wherein the flame-stopping material is applied to the concave portion or filled into the concave portion.
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| JP2016211325A (en) * | 2015-05-13 | 2016-12-15 | 株式会社大林組 | Fire resistant construction material, manufacturing method for the same, joining structure for the same and joining method for the same |
| JP2018017083A (en) * | 2016-07-29 | 2018-02-01 | 株式会社竹中工務店 | Joint structure |
| JP2018044324A (en) * | 2016-09-13 | 2018-03-22 | 谷一木材株式会社 | Fireproof wood |
| JP2019142035A (en) * | 2018-02-16 | 2019-08-29 | 株式会社竹中工務店 | Woody structural material |
| JP2020056197A (en) * | 2018-10-01 | 2020-04-09 | 株式会社竹中工務店 | Woody structure member |
| JP2020147976A (en) * | 2019-03-13 | 2020-09-17 | 株式会社竹中工務店 | Fire-resisting structure |
| JP2021130977A (en) * | 2020-02-20 | 2021-09-09 | 大成建設株式会社 | Fireproof member |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2016211325A (en) * | 2015-05-13 | 2016-12-15 | 株式会社大林組 | Fire resistant construction material, manufacturing method for the same, joining structure for the same and joining method for the same |
| JP2018017083A (en) * | 2016-07-29 | 2018-02-01 | 株式会社竹中工務店 | Joint structure |
| JP2018044324A (en) * | 2016-09-13 | 2018-03-22 | 谷一木材株式会社 | Fireproof wood |
| JP2019142035A (en) * | 2018-02-16 | 2019-08-29 | 株式会社竹中工務店 | Woody structural material |
| JP7081746B2 (en) | 2018-02-16 | 2022-06-07 | 株式会社竹中工務店 | Wood structural material |
| JP2020056197A (en) * | 2018-10-01 | 2020-04-09 | 株式会社竹中工務店 | Woody structure member |
| JP7087259B2 (en) | 2018-10-01 | 2022-06-21 | 株式会社竹中工務店 | A method for manufacturing a wooden structural member and a wooden structural member. |
| JP2020147976A (en) * | 2019-03-13 | 2020-09-17 | 株式会社竹中工務店 | Fire-resisting structure |
| JP7236614B2 (en) | 2019-03-13 | 2023-03-10 | 株式会社竹中工務店 | Fireproof structure |
| JP2021130977A (en) * | 2020-02-20 | 2021-09-09 | 大成建設株式会社 | Fireproof member |
| JP7349386B2 (en) | 2020-02-20 | 2023-09-22 | 大成建設株式会社 | Fireproof materials |
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