JP6315915B2 - Wood structure member and method for manufacturing wood structure member - Google Patents
Wood structure member and method for manufacturing wood structure member Download PDFInfo
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- JP6315915B2 JP6315915B2 JP2013153667A JP2013153667A JP6315915B2 JP 6315915 B2 JP6315915 B2 JP 6315915B2 JP 2013153667 A JP2013153667 A JP 2013153667A JP 2013153667 A JP2013153667 A JP 2013153667A JP 6315915 B2 JP6315915 B2 JP 6315915B2
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Description
本発明は、木質構造部材及び木質構造部材の製造方法に関する。 The present invention relates to a wooden structure member and a method for manufacturing the wooden structure member.
特許文献1には、薬剤処理木材又は無処理木材を繊維方向が直交になるように積層して接着した耐火木質構造部材が開示されている。 Patent Document 1 discloses a fire-resistant wood structure member in which drug-treated wood or untreated wood is laminated and bonded so that fiber directions are orthogonal to each other.
特許文献2〜4には、木製の荷重支持部と、荷重支持部の外周に設けられた燃止層及び燃代層と、を備えた耐火性能を有する木質構造部材が開示されている。 Patent Documents 2 to 4 disclose a wooden structure member having a fire resistance performance provided with a wooden load support portion and a fuel stop layer and a fuel allowance layer provided on the outer periphery of the load support portion.
ここで、荷重支持部に燃止層及び燃代層を短時間で固定し、木質構造部材の製造時間を短縮することが望まれている。 Here, fixed in a short time燃止layer and燃代layer load-bearing part, it is desired to shorten the manufacturing time of the wooden structural member.
本発明は、上記事実を鑑み、木質構造部材の製造時間を短縮することが課題である。 In view of the above fact, the present invention has a problem of shortening the manufacturing time of a wooden structure member.
請求項1の発明は、木材で構成された荷重支持部と、前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有し、前記荷重支持部に接合された外層部と、を備え、前記外層部は、前記燃代層の外側部分を構成する第一外層部と、前記燃代層の内側部分と前記燃止層とを構成する第二外層部と、を有し、前記第一外層部と前記第二外層部とが圧締されて接合されていると共に、前記第二外層部が前記荷重支持部にビスでビス締結され、前記第一外層部の外面に開口するビス穴が栓材で塞がれ、前記第二外層部は、前記荷重支持部を構成する木材及び前記第一外層部を構成する木材の少なくとも一方よりも熱慣性が高い木材で構成されている。 According to a first aspect of the present invention, there is provided a load support portion made of wood, a fuel stop layer arranged outside the load support portion and made of wood and a fire stop member, and outside the fire stop layer. A fuel surrogate layer made of wood, and having an outer layer portion joined to the load support portion, wherein the outer layer portion constitutes an outer portion of the fuel surrogate layer And a second outer layer portion constituting the inner portion of the fuel allowance layer and the flame stop layer, and the first outer layer portion and the second outer layer portion are pressed and joined together. The second outer layer portion is screwed to the load support portion with a screw, a screw hole opened on the outer surface of the first outer layer portion is closed with a plug , and the second outer layer portion is connected to the load support portion. It is made of wood having higher thermal inertia than at least one of the wood constituting the wood and the wood constituting the first outer layer portion .
請求項1に記載の発明では、燃止層と燃代層とを有する外層部が荷重支持部にビス締結されているので、外層部と荷重支持部とを接着剤を用いて圧締する場合と比較し、荷重支持部に外層部(燃止層及び燃代層)を短時間で固定することができる。したがって、木質構造部材の製造時間が短くなる。
また、外層部を構成する第一外層部と第二外層部とを圧締で接合することで、外層部と荷重支持部とのビス締結の工程が一回となり、荷重支持部への外層部の固定工程が簡略化される。
また、高い耐火性能が必要な第二外層部(燃止層)を、熱慣性が高い木材とすることで、効果的に耐火性能が向上する。
In the first aspect of the invention, since the outer layer portion having the flame stop layer and the fuel allowance layer is screw-fastened to the load support portion, the outer layer portion and the load support portion are pressed using an adhesive. As compared with the above, the outer layer portion (the fuel stop layer and the fuel substitution layer) can be fixed to the load support portion in a short time. Therefore, the manufacturing time of the wooden structural member is shortened.
Also, by joining the first outer layer part and the second outer layer part constituting the outer layer part by pressing, the screw fastening process between the outer layer part and the load supporting part becomes one time, and the outer layer part to the load supporting part The fixing process is simplified.
Moreover, fireproof performance improves effectively by making the 2nd outer layer part (flame stop layer) which needs high fireproof performance into wood with high thermal inertia.
請求項2の発明は、木材で構成された荷重支持部と、前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有し、前記荷重支持部に接合された外層部と、を備え、前記外層部は、前記燃代層の外側部分を構成する第一外層部と、前記燃代層の内側部分と前記燃止層とを構成する第二外層部と、を有し、前記第一外層部と前記第二外層部とが第一ビスでビス締結されて接合されていると共に、前記第二外層部が前記荷重支持部に第二ビスでビス締結され、前記第一外層部の外面に開口するビス穴が栓材で塞がれている。 According to a second aspect of the present invention, there is provided a load support portion made of wood, a fuel stop layer which is arranged outside the load support portion and made of wood and a fire stop member, and outside the fire stop layer. A fuel surrogate layer made of wood, and having an outer layer portion joined to the load support portion, wherein the outer layer portion constitutes an outer portion of the fuel surrogate layer And a second outer layer portion constituting the inner portion of the fuel allowance layer and the flame stop layer, and the first outer layer portion and the second outer layer portion are screwed together with a first screw and joined. In addition, the second outer layer portion is screwed to the load support portion with a second screw, and a screw hole opened on the outer surface of the first outer layer portion is closed with a plug material.
請求項2に記載の発明では、外層部を構成する第一外層部と第二外層部とを圧締で接合する場合は、外層部と荷重支持部とのビス締結の工程が一回となり、荷重支持部への外層部の固定工程が簡略化される。 In the invention according to claim 2, when the first outer layer portion and the second outer layer portion constituting the outer layer portion are joined by pressing, the screw fastening process between the outer layer portion and the load support portion is performed once, The fixing process of the outer layer part to the load support part is simplified.
また、外層部を構成する第一外層部と第二外層部とをビス締結で接合することで、第一外層部と第二外層部との接合時間が短縮される。 In addition, by joining the first outer layer portion and the second outer layer portion which constitutes the outer layer portion with a screw fastening, bonding time between the first outer and second outer layer portion is shortened.
請求項3の発明は、前記第二外層部は、前記荷重支持部を構成する木材及び前記第一外層部を構成する木材の少なくとも一方よりも熱慣性が高い木材で構成されている。 According to a third aspect of the present invention, the second outer layer portion is made of wood having higher thermal inertia than at least one of the wood constituting the load support portion and the wood constituting the first outer layer portion.
請求項3に記載の発明では、高い耐火性能が必要な第二外層部(燃止層)を、熱慣性が高い木材とすることで、効果的に耐火性能が向上する。 In invention of Claim 3, fireproof performance improves effectively by making the 2nd outer layer part (flame stop layer) which needs high fireproof performance into wood with high thermal inertia.
請求項4の発明は、木材で構成された荷重支持部と、前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有する外層部と、を備える木質構造部材の製造方法であって、前記荷重支持部を作製する荷重支持部作製工程と、前記燃代層の外側部分を構成する第一外層部を作製する第一外層部作製工程と、前記燃代層の内側部分と前記燃止層とを構成し、前記荷重支持部を構成する木材及び前記第一外層部を構成する木材の少なくとも一方よりも熱慣性が高い木材で構成されている第二外層部を作製する第二外層部作製工程と、前記第一外層部と前記第二外層部とを圧締して接合したのちに前記第二外層部を前記荷重支持部にビスでビス締結する接合工程と、前記第一外層部の外面に開口するビス穴を栓材で塞ぐ仕上工程と、を備える。
請求項5の発明は、木材で構成された荷重支持部と、前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有する外層部と、を備える木質構造部材の製造方法であって、前記荷重支持部を作製する荷重支持部作製工程と、前記燃代層の外側部分を構成する第一外層部を作製する第一外層部作製工程と、前記燃代層の内側部分と前記燃止層とを構成する第二外層部を作製する第二外層部作製工程と、前記第二外層部を前記荷重支持部に第一ビスでビス締結したのちに前記第二外層部に前記第一外層部を第二ビスでビス締結する接合工程と、前記第一外層部の外面に開口するビス穴を栓材で塞ぐ仕上工程と、を備える。
According to a fourth aspect of the present invention, there is provided a load support portion made of wood, a fuel stop layer arranged outside the load support portion and made of wood and a fire stop member, and outside the fire stop layer. A wood structure member manufacturing method comprising: an outer layer portion that is disposed and configured with a fuel allowance layer made of wood, the load support portion making step for making the load support portion; and an outer side of the fuel allowance layer A first outer layer portion forming step for forming a first outer layer portion constituting the portion, an inner portion of the fuel allowance layer and the flame stop layer, and wood constituting the load support portion and the first outer layer portion A second outer layer part manufacturing step of manufacturing a second outer layer part made of wood having higher thermal inertia than at least one of the woods constituting the wood, and pressing the first outer layer part and the second outer layer part Joining the second outer layer part to the load support part with screws after joining , And a finishing step closed by closure member screw holes opened in the outer surface of the first outer layer portion.
According to a fifth aspect of the present invention, there is provided a load support portion made of wood, a fuel stop layer arranged outside the load support portion and made of wood and a fire stop member, and outside the fire stop layer. A wood structure member manufacturing method comprising: an outer layer portion that is disposed and configured with a fuel allowance layer made of wood, the load support portion making step for making the load support portion; and an outer side of the fuel allowance layer A first outer layer part producing step for producing a first outer layer part constituting the part, a second outer layer part producing step for producing a second outer layer part constituting the inner part of the fuel surrogate layer and the flame stop layer, A joining step in which the second outer layer portion is screwed to the load supporting portion with a first screw and then the first outer layer portion is screwed to the second outer layer portion with a second screw; and an outer surface of the first outer layer portion And a finishing step of closing the screw hole that is opened with a plug material.
請求項4及び請求項5に記載の発明では、燃止層と燃代層とを有する外層部が荷重支持部にビス締結されているので、外層部と荷重支持部とを接着剤を用いて圧締する場合と比較し、荷重支持部に外層部(燃止層及び燃代層)を短時間で固定することができる。したがって、木質構造部材の製造時間が短くなる。 In the invention according to claim 4 and claim 5 , since the outer layer portion having the flame stop layer and the fuel allowance layer is screwed to the load support portion, the outer layer portion and the load support portion are bonded using an adhesive. Compared with the case where it clamps, an outer layer part (a fuel stop layer and a fuel surcharge layer) can be fixed to a load support part in a short time. Thus, the manufacturing time of the wooden structural member is shortened.
本発明によれば、木質構造部材の製造時間を短縮することができる。 According to the present invention, the manufacturing time of a wooden structure member can be shortened.
<第一実施形態>
本発明の第一実施形態に係る木質構造部材(耐火集成材)の一例としての木質柱10について説明する。
<First embodiment>
The wooden pillar 10 as an example of the wooden structural member (fireproof laminated material) according to the first embodiment of the present invention will be described.
図1、図2、及び図5(B)には、木質柱10が示されている。なお、木質柱10の軸方向をZ方向とし、軸方向と直交する二方向をX方向及びY方向とする。また、後述する木製単材14、16、18は、図が煩雑になるのを避けるため図2では図示していない。また、後述するビス50、60及び木栓62は、図2にのみ図示している。 A wooden pillar 10 is shown in FIGS. 1, 2, and 5 (B). In addition, let the axial direction of the wooden pillar 10 be a Z direction, and let two directions orthogonal to an axial direction be an X direction and a Y direction. Further, the wooden single members 14, 16, and 18 to be described later are not shown in FIG. 2 in order to avoid the complexity of the drawing. Further, screws 50 and 60 and a wooden plug 62 to be described later are shown only in FIG.
図1、図2、及び図5(B)に示すように、木質柱10は、断面略矩形(本実施形態では断面略正方形)に形成されており、荷重を支持する心材部(荷重支持部)12と、心材部12の外側に設けられた外層部100と、を備えている。 As shown in FIGS. 1, 2, and 5 (B), the wooden pillar 10 is formed in a substantially rectangular cross section (in the present embodiment, a substantially square cross section), and a core material portion (load support portion) that supports a load. ) 12 and an outer layer portion 100 provided outside the core material portion 12.
また、外層部100は、心材部12を被覆する燃止層110と、燃止層110を被覆する燃代層120と、を有する構成となっている。更に、外層部100は、燃代層120の外側部分122を構成する第一外層部102と、燃代層120の内側部分124と燃止層110とを構成する第二外層部104と、が接合されて構成されている(図5(A)も参照)。 Further, the outer layer portion 100 is configured to include a fuel stop layer 110 that covers the core material portion 12 and a fuel allowance layer 120 that covers the fuel stop layer 110. Further, the outer layer portion 100 includes a first outer layer portion 102 that constitutes the outer portion 122 of the fuel allowance layer 120, and a second outer layer portion 104 that constitutes the inner portion 124 of the fuel allowance layer 120 and the fuel stop layer 110. It is configured to be joined (see also FIG. 5A).
心材部12は、断面矩形とされ、木質柱10が負担する荷重を支持可能な構成されている。また、心材部(荷重支持部)12は、板状の複数の木製単材14(図1及び図3(B)参照)でて構成されている。 The core member 12 has a rectangular cross section and is configured to support a load borne by the wooden pillar 10. Further, the core part (load support part) 12 is constituted by a plurality of plate-like wooden single members 14 (see FIGS. 1 and 3B).
心材部12の外側(外周)には、心材部12を囲む燃止層110が配置されている。燃止層110は、火災時における燃代層120の燃焼を停止(自然鎮火)させ、心材部12の燃焼を抑制する層である。この燃止層110は、心材部12の外周面に沿って配置される木質部114と、燃止部材(高熱容量部)の一例としての複数のモルタル板112とを有している。モルタル板112は、断面略矩形の板状に形成されており、長手方向を木質柱10の軸方向(Z方向)として配置されている(図1参照)。 On the outer side (outer periphery) of the core member 12, a fuel layer 110 surrounding the core member 12 is disposed. The fuel stop layer 110 is a layer that stops combustion of the fuel allowance layer 120 at the time of a fire (natural fire suppression) and suppresses combustion of the core material portion 12. This flame stop layer 110 has a wood part 114 arranged along the outer peripheral surface of the core part 12 and a plurality of mortar plates 112 as an example of a fuel stop member (high heat capacity part). The mortar board 112 is formed in a plate shape having a substantially rectangular cross section, and is arranged with the longitudinal direction as the axial direction (Z direction) of the wooden pillar 10 (see FIG. 1).
モルタル板112は、モルタルを硬化させたものであり、心材部12、木質部114及び燃代層120よりも熱容量が大きい。 The mortar board 112 is obtained by curing mortar, and has a larger heat capacity than the core material part 12, the wood part 114, and the fuel charge layer 120.
そして、モルタル板112と木質部114とを心材部12の外周面12Aに沿って交互に配置することにより、燃止層110の熱容量が心材部12及び燃代層120の熱容量よりも大きくなるように構成されている。 And by arranging the mortar board 112 and the wood part 114 alternately along the outer peripheral surface 12A of the core part 12, the heat capacity of the fuel stop layer 110 becomes larger than the heat capacities of the core part 12 and the fuel charge layer 120. It is configured.
燃止層110の外側(外周)には、燃止層110を囲む燃代層120が配置されている。燃代層120は、火災時に燃焼して炭化層(断熱層)を形成することにより、心材部12への火災熱の浸入を抑制する層であり、この燃代層120の厚み(層厚)は、木質柱10に求められる要求耐火性能(耐火時間)や燃代層120の燃焼速度及び遮熱性能に応じて適宜設定されている。 On the outer side (outer periphery) of the flame stop layer 110, a fuel allowance layer 120 surrounding the flame stop layer 110 is disposed. The fuel allowance layer 120 is a layer that suppresses the intrusion of fire heat into the core material portion 12 by burning during a fire to form a carbonized layer (heat insulating layer). The thickness (layer thickness) of the fuel allowance layer 120 Is appropriately set according to the required fire resistance (fire resistance time) required for the wooden pillar 10, the combustion rate of the fuel surcharge layer 120, and the heat shielding performance.
前述したように、これら燃代層120の外側部分122を構成する第一外層部102と、燃代層120の内側部分124と燃止層110とを構成する第二外層部104と、が接合されることで、外層部100が構成されている(図5(A)も参照)。 As described above, the first outer layer portion 102 constituting the outer portion 122 of the fuel allowance layer 120 and the second outer layer portion 104 constituting the inner portion 124 of the fuel allowance layer 120 and the fuel stop layer 110 are joined together. Thus, the outer layer portion 100 is configured (see also FIG. 5A).
図1及び図5(B)に示すように、燃代層120の外側部分122を構成する第一外層部102は、板状の複数の木製単材16で構成されている(図4も参照)。また、燃代層120の内側部分124と燃止層110とを構成する第二外層部104は、板状の複数の木製単材18で構成された木製部20(図2等も参照)と、木製部20に形成された凹部22(図2及び図4(F)等も参照)に嵌め込まれビス50によって締結されたモルタル板112(図2等も参照)と、で構成されている。 As shown in FIG.1 and FIG.5 (B), the 1st outer-layer part 102 which comprises the outer part 122 of the fuel surcharge layer 120 is comprised by the plate-shaped some single wood material 16 (refer FIG. 4 also). ). In addition, the second outer layer portion 104 constituting the inner portion 124 of the fuel allowance layer 120 and the fuel stop layer 110 includes a wooden portion 20 (see also FIG. 2 and the like) composed of a plurality of plate-like single wood materials 18. , And a mortar plate 112 (see also FIG. 2 and the like) that is fitted into a recess 22 (see also FIG. 2 and FIG. 4 (F) and the like) formed in the wooden portion 20 and fastened by a screw 50.
図2に示すように(後述するように)、第一外層部102と第二外層部104とは、接着剤によって圧締され一体化されている。そして、外層部100の第二外層部104が心材部12にビス60によって締結されている。 As shown in FIG. 2 (as will be described later), the first outer layer portion 102 and the second outer layer portion 104 are pressed and integrated with an adhesive. The second outer layer portion 104 of the outer layer portion 100 is fastened to the core material portion 12 with screws 60.
また、ビス60で締結する際に形成され表面10Aに開口するビス穴64に木栓62が埋め込まれている。 A wooden plug 62 is embedded in a screw hole 64 that is formed when the screw 60 is fastened and opens to the surface 10A.
本実施形態では、第二外層部104の木製部20を構成する木製単材18は、心材部12を構成する木製単材14及び第一外層部102(122)を構成する木製単材16よりも、熱慣性が高い木材で形成されている。 In this embodiment, the single wooden material 18 constituting the wooden portion 20 of the second outer layer portion 104 is more than the single wooden material 14 constituting the core material portion 12 and the single wooden material 16 constituting the first outer layer portion 102 (122). It is also made of wood with high thermal inertia.
なお、熱慣性とは、部材の温度変化に対する抵抗の度合いを示す指標(尺度)であり、下記式(1)によって表される。この熱慣性が高くなると部材が燃え難くなり、低くなると部材が燃え易くなる。 The thermal inertia is an index (scale) indicating the degree of resistance to temperature change of the member, and is represented by the following formula (1). When this thermal inertia becomes high, the member becomes difficult to burn, and when it becomes low, the member becomes easy to burn.
ただし
ρ:密度(kg/m3)
c:比熱(kJ/kgK)
k:熱伝導率(kW/mK)
である。
Where ρ: density (kg / m3)
c: Specific heat (kJ / kgK)
k: Thermal conductivity (kW / mK)
It is.
本実施形態では、心材部12を構成する木製単材14及び第一外層部102(燃代層120の外側部分122)を構成する木製単材16がスギ(杉)で構成されており、第二外層部104の木製部20を構成する木製単材18がスギよりも高密度で熱慣性が高いカラマツ(唐松)で構成されている。これにより、第二外層部104(燃止層110の木質部114)がスギで構成されている場合と比較して、火災時に隣接するモルタル板112との間から心材部12へ浸入する火災熱が低減されるようになっている。 In this embodiment, the wooden single material 14 which comprises the core material part 12, and the wooden single material 16 which comprises the 1st outer layer part 102 (outer part 122 of the fuel surcharge layer 120) are comprised with cedar (cedar), The single wooden material 18 constituting the wooden portion 20 of the two outer layer portions 104 is composed of larch (Karamatsu) having higher density and higher thermal inertia than cedar. Thereby, compared with the case where the 2nd outer layer part 104 (woody part 114 of the flame stop layer 110) is comprised with cedar, the fire heat which permeates into the core material part 12 from between the adjacent mortar boards 112 at the time of a fire is produced. It has been reduced.
また、熱慣性が低い木材(低熱慣性木材)としては、例えば、バルサ、キリ、ベイスギ、スプルースが挙げられ、熱慣性が高い木材(高熱慣性木材)としては、例えば、ベイヒバ、ベイマツ、カラマツ、カツラ、ナラ、ケヤキ、ジャラ、セランガンバツ、イペ、ボンゴシが挙げられる。また、高熱慣性木材としては、人工的に圧縮することにより密度を高めた木材や、密度調整材(例えばシリコン系樹脂、フェノール樹脂、ポリエチレングリコール等)を注入した木材等が挙げられる。 In addition, examples of timber having low thermal inertia (low thermal inertia timber) include balsa, drill, cedar and spruce, and examples of wood having high thermal inertia (high thermal inertia timber) include, for example, bee hiba, bay pine, larch, and wig. , Oak, zelkova, jara, selangan batu, ipe, bongoshi. In addition, examples of the high thermal inertia wood include wood whose density has been increased by artificial compression, and wood into which a density adjusting material (for example, a silicon-based resin, a phenol resin, polyethylene glycol, or the like) has been injected.
なお、本実施形態では、熱慣性を基準として第二外層部104の木製部20を構成する木製単材18となる木材を選択したが、例えば、木材の密度や含水率等によって決定される炭化速度を基準として、木製単材18となる木材を選択しても良い。つまり、第二外層部104(燃止層110の木質部114)を構成する木製単材18は、心材部12を構成する木製単材14及び第一外層部102の木製部20を構成する木製単材16の少なくとも一方よりも炭化速度が遅い木材(例えば、カラマツ)で形成しても良い。 In the present embodiment, the wood to be the single wood material 18 constituting the wooden portion 20 of the second outer layer portion 104 is selected based on the thermal inertia. However, for example, the carbonization determined by the density, moisture content, etc. of the wood. You may select the wood used as the wooden single material 18 on the basis of speed. That is, the wooden single material 18 constituting the second outer layer portion 104 (the woody portion 114 of the fuel stop layer 110) is composed of the wooden single material 14 constituting the core material portion 12 and the wooden single material constituting the wooden portion 20 of the first outer layer portion 102. You may form with the wood (for example, larch) whose carbonization rate is slower than at least one of the materials 16.
(製造方法)
つぎに、木質柱10の製造方法の一例について説明する。
(Production method)
Below, an example of the manufacturing method of the wooden pillar 10 is demonstrated.
図3(A)に示すように、複数の木製単材14(本実施形態ではスギ)を、図3(B)に示すように、積層して圧締し一体化させて心材部(荷重支持部)12を作製する。なお、圧締とは、接着剤を塗布した被着材に圧力を加えて密着させ、接着剤が充分硬化するのをまって接着を完了する操作である。 As shown in FIG. 3 (A), a plurality of single wooden materials 14 (cedar in this embodiment) are stacked and pressed and integrated as shown in FIG. Part) 12. Note that pressing is an operation in which pressure is applied to an adherend to which an adhesive has been applied to bring the adhesive into close contact, and the adhesive is sufficiently cured to complete the bonding.
図4(A)及び図4(B)に示すように、複数の木製単材16(本実施形態ではスギ)を積層して圧締し第一外層部102を作製する。また、複数の木製単材16を両端部に配置し、間に複数の木製単材18(本実施形態ではカラマツ)を積層して圧締し、第二外層部104を作製する。 As shown in FIGS. 4A and 4B, a plurality of single wooden materials 16 (cedar in this embodiment) are stacked and pressed to produce the first outer layer portion 102. Also, a plurality of wooden single members 16 are arranged at both ends, and a plurality of wooden single members 18 (larch in this embodiment) are stacked and pressed between them to produce the second outer layer portion 104.
図4(C)に示すように第一外層部102と第二外層部104とを重ねて圧締し、図4(D)に示すように厚みを調整し、図4(E)に示すように、第二外層部104の木製部20に凹部22を形成する。 As shown in FIG. 4 (C), the first outer layer portion 102 and the second outer layer portion 104 are overlapped and pressed, the thickness is adjusted as shown in FIG. 4 (D), and as shown in FIG. 4 (E). In addition, the recess 22 is formed in the wooden portion 20 of the second outer layer portion 104.
そして、図4(F)に示すように、別途作製したモルタル板112を凹部22に嵌め込みビス50(図2参照)で締結する。 Then, as shown in FIG. 4 (F), a separately prepared mortar plate 112 is fitted into the recess 22 and fastened with screws 50 (see FIG. 2).
つぎに、図5(A)及び図5(B)に示すように、心材部12の外周面12Aにそれぞれ、外層部100をビス60(図2参照)で締結する。このとき、図2に示すように、ビス60の頭部60Aは、第二外層部104の燃止層110よりも外側に位置しないようにする。また、ビス60で締結する際に形成され表面10Aに開口するビス穴64に木栓62を埋めて仕上げる。 Next, as shown in FIGS. 5A and 5B, the outer layer portion 100 is fastened to the outer peripheral surface 12 </ b> A of the core material portion 12 with screws 60 (see FIG. 2). At this time, as shown in FIG. 2, the head 60 </ b> A of the screw 60 is not positioned outside the fuel stop layer 110 of the second outer layer portion 104. Further, a wood plug 62 is filled in a screw hole 64 formed when the screw 60 is fastened and opened to the surface 10A.
なお、図5におけるY方向の両側に配置される外層部100には、積層方向の両端部には、複数の木製単材16は接合されていない。 In addition, in the outer layer part 100 arrange | positioned on both sides of the Y direction in FIG. 5, the several wooden single material 16 is not joined to the both ends of the lamination direction.
<作用及び効果>
つぎに、本実施形態の作用及び効果について説明する。
<Action and effect>
Next, functions and effects of the present embodiment will be described.
図2に示すように、燃止層110と燃代層120とが一体化された外層部100を心材部12にビス60で締結するので、外層部100と心材部12とを接着剤を用いて圧締する場合と比較し、製造時間が短くなる。また、製造作業が簡略化される。 As shown in FIG. 2, the outer layer portion 100 in which the fuel stop layer 110 and the fuel allowance layer 120 are integrated is fastened to the core material portion 12 with screws 60, so that the outer layer portion 100 and the core material portion 12 are bonded using an adhesive. Compared with the case of pressing, the manufacturing time is shortened. Further, the manufacturing work is simplified.
また、図4及び図5を用いて説明したように、外層部100を構成する第一外層部102と第二外層部104とを予め圧締して接合することで、外層部100と心材部12とのビス60で締結する工程が一回となり締結工程が簡略化される。 Also, as described with reference to FIGS. 4 and 5, the first outer layer portion 102 and the second outer layer portion 104 constituting the outer layer portion 100 are pressed and joined in advance, so that the outer layer portion 100 and the core material portion are joined. The process of fastening with the screw 60 with 12 is performed once, and the fastening process is simplified.
ここで、図1及び図2示されるように、木質柱10では、荷重を支持する心材部12が燃止層110及び燃代層120によって被覆されている。 Here, as shown in FIG. 1 and FIG. 2, in the wooden pillar 10, the core member 12 that supports the load is covered with the fuel stop layer 110 and the fuel allowance layer 120.
したがって、火災時には、先ず、燃代層120が徐々に燃焼して燃止層110の周囲に炭化層(断熱層)を形成する。これにより、燃止層110及び心材部12へ浸入する火災熱が低減される。また、このとき、心材部12及び燃代層120よりも熱容量が大きい燃止層110によって火災熱が吸収(吸熱)される。これにより、心材部12へ浸入する火災熱がさらに低減される。したがって、心材部12の燃焼が抑制されるため、木質柱10の耐火性能が向上する。 Therefore, in the event of a fire, first, the fuel allowance layer 120 gradually burns to form a carbonized layer (heat insulation layer) around the flame stop layer 110. Thereby, the fire heat which permeates into the flame stop layer 110 and the core part 12 is reduced. At this time, the fire heat is absorbed (heat absorption) by the fuel stop layer 110 having a larger heat capacity than the core member 12 and the fuel allowance layer 120. Thereby, the fire heat which penetrates into the core part 12 is further reduced. Therefore, since the combustion of the core part 12 is suppressed, the fire resistance performance of the wooden pillar 10 is improved.
さらに、熱容量が高い燃止層110によって、燃代層120の燃焼を停止(自然鎮火)させることができる。したがって、火災終了後も心材部12に荷重を支持させることができる。 Furthermore, the combustion of the fuel charge layer 120 can be stopped (natural fire suppression) by the fuel stop layer 110 having a high heat capacity. Therefore, the core material portion 12 can support the load even after the end of the fire.
なお、耐火性能を確保するためには、外層部100(燃代層120及び燃止層110)が心材部(荷重支持部)12から脱落しなければよいので、圧締による強固な一体性が確保されていなくても、ビス60による締結(ビス締結)であってもよい。 In order to ensure fire resistance, the outer layer portion 100 (the fuel allowance layer 120 and the fuel stop layer 110) does not have to fall off from the core material portion (load support portion) 12, so that strong integrity by pressing is achieved. Even if it is not ensured, fastening with screws 60 (screw fastening) may be used.
また、ビス60の頭部60Aは、第二外層部104の燃止層110よりも外側に位置しないように設けてあるので、ビス60の熱伝導による心材部12へ浸入する火災熱が低減される。 Further, since the head 60A of the screw 60 is provided so as not to be positioned outside the flame stop layer 110 of the second outer layer portion 104, fire heat entering the core material portion 12 due to heat conduction of the screw 60 is reduced. The
また、耐火性能の観点からすれば、木質柱10は、熱慣性が高い高熱慣性木材で形成することが望ましい。しかしながら、木質柱10を一律に高熱慣性木材で形成すると、コストがかかる可能性がある。一方、木質柱10を一律に低熱慣性木材で形成すると、燃止層110が燃え易くなり、隣接するモルタル板112の間から火災熱が心材部12へ浸入する可能性が高くなる。 Further, from the viewpoint of fire resistance, it is desirable that the wooden column 10 be formed of high thermal inertia wood having high thermal inertia. However, if the wooden pillar 10 is uniformly formed of high heat inertia wood, there is a possibility that it may be costly. On the other hand, when the wooden pillar 10 is uniformly formed of low heat inertia wood, the flame stop layer 110 is easily burned, and the possibility that fire heat enters the core material portion 12 from between the adjacent mortar plates 112 increases.
そこで、本実施形態では、心材部12及び燃代層120(正確には、第一外層部102(燃代層120の外側部分122))を低熱慣性木材(例えば、スギ)で構成する一方で、燃止層110(正確には、第二外層部104の木製部20(燃止層110と燃代層120の内側部分124))を高熱慣性木材(例えば、カラマツ)で構成している。 Therefore, in the present embodiment, while the core material portion 12 and the fuel passage layer 120 (more precisely, the first outer layer portion 102 (the outer portion 122 of the fuel passage layer 120)) are made of low thermal inertia wood (for example, cedar). The flame stop layer 110 (more precisely, the wooden portion 20 of the second outer layer portion 104 (the inner portion 124 of the fuel stop layer 110 and the fuel allowance layer 120)) is made of high heat inertia wood (for example, larch).
つまり、本実施形態では、燃代層120から心材部12への火災熱の伝達経路となる燃止層110が、心材部12及び燃代層120よりも燃え難くなっている。これにより、火災時に、隣接するモルタル板112の間から心材部12へ浸入する火災熱を効率的に低減することができる。 In other words, in the present embodiment, the fuel stop layer 110 serving as a fire heat transmission path from the fuel charge layer 120 to the core material part 12 is less likely to burn than the core material part 12 and the fuel charge layer 120. Thereby, at the time of a fire, the fire heat which permeates into the core part 12 from between the adjacent mortar boards 112 can be reduced efficiently.
したがって、耐火性能の低下を低減しつつ、木質柱10の心材部12及び燃代層120(正確には、第二外層部104の木製部20(燃止層110と燃代層120の内側部分124))に用いる木材の選択自由度を向上することができる。 Therefore, the core part 12 of the wooden pillar 10 and the fuel surplus layer 120 (more precisely, the wooden part 20 of the second outer layer part 104 (the inner portions of the fuel stop layer 110 and the fuel surrogate layer 120) while reducing the deterioration of the fire resistance performance. 124)), the degree of freedom of selection of the wood used can be improved.
<第二実施形態>
本発明の第二実施形態に係る木質構造部材(耐火集成材)の一例としての木質柱11について説明する。なお、第一実施形態と同一の部材には同一の符号を付し、重複する説明は省略する。また、木製単材14、16、18は、図が煩雑になるのを避けるため図6では図示していない。また、後述するビス50、70、80及び木栓82は、図6にのみ図示している。
<Second embodiment>
The wooden pillar 11 as an example of the wooden structural member (fireproof laminated material) according to the second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment, and the overlapping description is abbreviate | omitted. Further, the wooden single members 14, 16, and 18 are not shown in FIG. 6 in order to avoid complication of the drawing. Further, screws 50, 70, 80 and a wooden plug 82 to be described later are shown only in FIG.
図6に示すように、第二実施形態の木質柱11では、外層部100の第二外層部104が心材部12にビス70によって締結され、第二外層部104に第一外層部102がビス80によって締結されている。また、ビス80で締結する際に形成され表面11Aに開口するビス穴84に木栓82が埋め込まれている。 As shown in FIG. 6, in the wood pillar 11 of the second embodiment, the second outer layer portion 104 of the outer layer portion 100 is fastened to the core material portion 12 by screws 70, and the first outer layer portion 102 is screwed to the second outer layer portion 104. 80 is fastened. A wooden plug 82 is embedded in a screw hole 84 that is formed when the screw 80 is fastened and opens to the surface 11A.
(製造方法)
つぎに、木質柱11の製造方法の一例について説明する。
(Production method)
Below, an example of the manufacturing method of the wooden pillar 11 is demonstrated.
図3(A)に示すように、複数の木製単材14(本実施形態ではスギ)を、図3(B)に示すように、積層して圧締し、一体化させて心材部(荷重支持部)12を作製する(第一実施形態と同じ)。 As shown in FIG. 3 (A), a plurality of wooden single members 14 (cedar in this embodiment) are stacked and pressed and integrated as shown in FIG. A support portion 12 is prepared (same as in the first embodiment).
図7(A)及び図7(B)に示すように、複数の木製単材16(本実施形態ではスギ)を積層して圧締したのち、図7(C)に示すように、厚みを調整し、第一外層部102を作製する。 As shown in FIGS. 7A and 7B, after laminating and pressing a plurality of single wooden materials 16 (cedar in this embodiment), the thickness is reduced as shown in FIG. 7C. The first outer layer portion 102 is prepared by adjusting.
一方、図7(D)及び図7(E)に示すように、複数の木製単材16(本実施形態ではスギ)を積層して圧締したのち、図7(F)に示すように、厚みを調整し、第二外層部104の木製部20を作製する。 On the other hand, as shown in FIG. 7 (D) and FIG. 7 (E), after laminating and pressing a plurality of single wooden materials 16 (cedar in this embodiment), as shown in FIG. The wooden part 20 of the second outer layer part 104 is produced by adjusting the thickness.
更に、図7(G)に示すように、第二外層部104の木製部20に凹部22を形成し、図7(H)に示すように、別途作製したモルタル板112を凹部22に嵌め込みビス50(図6参照)で締結する。 Further, as shown in FIG. 7 (G), a concave portion 22 is formed in the wooden portion 20 of the second outer layer portion 104, and a separately prepared mortar plate 112 is fitted into the concave portion 22 as shown in FIG. 7 (H). Fasten with 50 (see FIG. 6).
つぎに、図8(A)及び図8(B)に示すように、心材部12の外周面12Aに、第二外層部104をビス70(図6参照)で締結する。 Next, as shown in FIGS. 8A and 8B, the second outer layer portion 104 is fastened to the outer peripheral surface 12A of the core member 12 with screws 70 (see FIG. 6).
図8(B)及び図8(C)に示すように、第二外層部104の外周面104Aにレゾルシノール系等の接着剤を塗布し、第二外層部104の外側に第一外層部102をビス80(図6参照)で締結する。なお、このとき、図6に示すように、ビス80は、第二外層部104のモルタル板112の外側に位置するようにする。また、ビス80で締結する際に形成され、表面11Aに開口するビス穴84に、木栓82を埋めて仕上げる。 As shown in FIGS. 8B and 8C, a resorcinol-based adhesive or the like is applied to the outer peripheral surface 104A of the second outer layer portion 104, and the first outer layer portion 102 is disposed outside the second outer layer portion 104. Fasten with screws 80 (see FIG. 6). At this time, as shown in FIG. 6, the screw 80 is positioned outside the mortar plate 112 of the second outer layer portion 104. Further, a wood plug 82 is buried in the screw hole 84 formed when fastening with the screw 80 and opened on the surface 11A.
<作用及び効果>
つぎに、本実施形態の作用及び効果について説明する。
<Action and effect>
Next, functions and effects of the present embodiment will be described.
第二外層部104を心材部12にビス70で締結し、第一外層部102を第二外層部104にビス80で締結するので、第一外層部102、第二外層部104、及び心材部12を、接着剤を用いて圧締する場合と比較し、製造時間が短くなる。また、製造作業が簡略化される。 Since the second outer layer portion 104 is fastened to the core member 12 with screws 70 and the first outer layer portion 102 is fastened to the second outer layer portion 104 with screws 80, the first outer layer portion 102, the second outer layer portion 104, and the core member portion Compared with the case of pressing 12 using an adhesive, the manufacturing time is shortened. Further, the manufacturing work is simplified.
また、外層部100を構成する第一外層部102と第二外層部104とをビス締結で接合することで、第一外層部102と第二外層部104との接合時間が短縮される。 Moreover, the joining time of the 1st outer layer part 102 and the 2nd outer layer part 104 is shortened by joining the 1st outer layer part 102 and the 2nd outer layer part 104 which comprise the outer layer part 100 by screw fastening.
また、第一外層部102と第二外層部104との間にはレゾルシノール系等の接着剤が塗布されているので、第一外層部102と第二外層部104との間に空隙が発生することとが防止又は抑制される。なお、第一外層部102と第二外層部104との間に接着剤が塗布されていなくでもよい。 In addition, since a resorcinol-based adhesive is applied between the first outer layer portion 102 and the second outer layer portion 104, a gap is generated between the first outer layer portion 102 and the second outer layer portion 104. This is prevented or suppressed. Note that an adhesive may not be applied between the first outer layer portion 102 and the second outer layer portion 104.
また、ビス80は、第二外層部104のモルタル板112の外側に位置しているので、ビス80の熱伝導による燃止層110(心材部12)へ浸入する火災熱が低減される。 In addition, since the screw 80 is located outside the mortar plate 112 of the second outer layer portion 104, the fire heat entering the flame stop layer 110 (core material portion 12) due to heat conduction of the screw 80 is reduced.
なお、本実施形態では、図8に示すように、心材部12の外側に第二外層部104をビス70(図6参照)で締結したのち、更に第二外層部104に外側に第一外層部102をビス80(図6参照)で締結した。しかし、心材部12の外側に第二外層部104と第一外層部102とを重ねて配置し、一本の長いビスで、第二外層部104と第一外層部102とを心材部12に締結してもよい(共締めしてもよい)。 In the present embodiment, as shown in FIG. 8, after the second outer layer portion 104 is fastened to the outer side of the core member 12 with screws 70 (see FIG. 6), the first outer layer is further outwardly connected to the second outer layer portion 104. The part 102 was fastened with screws 80 (see FIG. 6). However, the second outer layer portion 104 and the first outer layer portion 102 are arranged so as to overlap the outer side of the core member 12, and the second outer layer portion 104 and the first outer layer portion 102 are connected to the core member 12 with one long screw. It may be fastened (may be fastened together).
<第三実施形態>
本発明の第三実施形態に係る木質柱13について説明する。なお、第一実施形態及び第二実施形態と同一の部材には同一の符号を付し、重複する説明は省略する。
<Third embodiment>
The wooden pillar 13 which concerns on 3rd embodiment of this invention is demonstrated. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment and 2nd embodiment, and the overlapping description is abbreviate | omitted.
図9に示すように、木質柱13は、図における対角線Mを境に左斜下方側M1が第一実施形態の木質柱10(図2参照)と同様の構成及び製作方法となっており、図における対角線Mを境に右斜上方側M2が第二実施形態の木質柱11(図6参照)と同様の構成及び作成方法となっている。 As shown in FIG. 9, the wooden pillar 13 has the same configuration and manufacturing method as the wooden pillar 10 (see FIG. 2) on the left oblique lower side M1 with the diagonal line M in the figure as a boundary, The diagonally upward line M2 in the figure has a configuration and a creation method similar to those of the wood pillar 11 (see FIG. 6) on the right oblique upper side M2.
なお、図9では、木質柱13の外側に、接合前の第一外層部102、第二外層部104、外層部100を、それぞれ実線で図示してある。 In FIG. 9, the first outer layer portion 102, the second outer layer portion 104, and the outer layer portion 100 before joining are shown by solid lines on the outside of the wooden pillar 13.
製作方法、作用及び効果は、第一実施形態及び第二実施形態と同様又は略同様であるので、説明を省略する。 Since the manufacturing method, operation, and effect are the same as or substantially the same as those in the first embodiment and the second embodiment, description thereof is omitted.
<その他>
尚、本発明は上記実施形態に限定されない。
<Others>
The present invention is not limited to the above embodiment.
例えば、上記実施形態において、第二外層部104と心材部12との間にレゾルシノール系等の接着剤を塗布してもよい。 For example, in the above embodiment, a resorcinol-based adhesive may be applied between the second outer layer portion 104 and the core material portion 12.
また、例えば、上記実施形態では、モルタル板112は、第二外層部104にビス50で締結したが、これに限定されない。モルタル板112を心材部12に締結してもよい。或いは、第二外層部104の凹部22に防水加工を施したうえで、モルタル材を流し込んで固化させてもよい。 For example, in the said embodiment, although the mortar board 112 was fastened with the screw | thread 50 to the 2nd outer layer part 104, it is not limited to this. The mortar plate 112 may be fastened to the core member 12. Or after giving the waterproof process to the recessed part 22 of the 2nd outer layer part 104, you may pour and solidify a mortar material.
また、例えば、本実施形態では、木製部20には板状のモルタル板112が嵌る溝状の凹部22を形成したが、これに限定されない。例えば、モルタル板112が挿入される孔部であってもよい。つまり、凹部や孔部等のモルタル板112が嵌る嵌部が木製部20に形成されていればよい。また、嵌部に燃止材(例えば、固化する前のモルタル、繊維補強セメント、石膏等)を注入して固化させることで、嵌部に燃止部が嵌った構成としてもよい。 For example, in this embodiment, although the groove-shaped recessed part 22 in which the plate-shaped mortar board 112 fits was formed in the wooden part 20, it is not limited to this. For example, it may be a hole into which the mortar plate 112 is inserted. That is, it is only necessary that the fitting portion into which the mortar plate 112 such as a recess or a hole fits is formed in the wooden portion 20. Moreover, it is good also as a structure by which the flame-retardant part fitted to the fitting part by inject | pouring and solidifying a flame-retardant material (For example, mortar before solidification, fiber reinforced cement, plaster etc.) into the fitting part.
また、例えば、上記実施形態では、心材部12を構成する木製単材14及び第一外層部102(燃代層120の外側部分122)を構成する木製単材16はスギ(杉)で構成されており、第二外層部104の木製部20を構成する木製単材18はスギよりも高密度で熱慣性が高いカラマツ(唐松)で構成されていたが、これに限定されない。所望の耐火性能や荷重支持性能によって、それぞれ適宜木材を選択すればよい。つまり、心材部12、第一外層部102、及び第二外層部104が、それぞれ別々の木材であってよいし、同じ木材であってもよい。 For example, in the said embodiment, the wooden single material 14 which comprises the core material part 12, and the wooden single material 16 which comprises the 1st outer layer part 102 (outer part 122 of the fuel slag layer 120) are comprised with cedar (cedar). The wooden single material 18 constituting the wooden portion 20 of the second outer layer portion 104 is made of larch (Karamatsu) which has a higher density and higher thermal inertia than cedar, but is not limited thereto. What is necessary is just to select wood suitably according to desired fireproof performance and load support performance, respectively. That is, the core material portion 12, the first outer layer portion 102, and the second outer layer portion 104 may be separate timbers or the same timber.
また、例えば、上記実施形態では、外層部100は、燃代層120の外側部分122を構成する第一外層部102と、燃代層120の内側部分124と燃止層110とを構成する第二外層部104と、が積層された構成であったが、これに限定されない。外層部100が三つ以上の外層部が積層された構成であってもよいし、複数の層が積層された構成でなくてもよい(外層部100の一層構造であってもよい)。 Further, for example, in the above embodiment, the outer layer portion 100 includes the first outer layer portion 102 that constitutes the outer portion 122 of the fuel allowance layer 120, the inner portion 124 of the fuel allowance layer 120, and the fuel stop layer 110. Although the two outer layer portions 104 are stacked, the present invention is not limited to this. The outer layer portion 100 may have a configuration in which three or more outer layer portions are stacked, or may not have a configuration in which a plurality of layers are stacked (a single layer structure of the outer layer portion 100 may be used).
また、例えば、上記実施形態では、木質柱10、11、13に本発明を適用したが、これに限定されない。例えば、木質梁にも本発明を適用することができる。また、上記実施形態では、心材部(荷重支持部)の四面全てに外層部が締結されていたが、これに限定されない。例えば、木質梁に適用する場合等は、心材部(荷重支持部)の上面を除く三面に外層部が締結された構成でであってもよい。 For example, in the said embodiment, although this invention was applied to the wooden pillars 10, 11, and 13, it is not limited to this. For example, the present invention can be applied to a wooden beam. Moreover, in the said embodiment, although the outer layer part was fastened by all the four surfaces of the core part (load support part), it is not limited to this. For example, when applied to a wooden beam, an outer layer portion may be fastened to three surfaces excluding the upper surface of the core material portion (load support portion).
更に、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言うまでもない Furthermore, it cannot be overemphasized that it can implement with a various aspect in the range which does not deviate from the summary of this invention.
10 木質柱(木質構造部材の一例)
11 木質柱(木質構造部材の一例)
12 心材部(荷重支持部の一例)
13 木質柱(木質構造部材の一例)
62 木栓(栓材の一例)
64 ビス穴
82 木栓(栓材の一例)
84 ビス穴
100 外層部
102 第一外層部
104 第二外層部
110 燃止層
112 モルタル板(燃止部材の一例)
120 燃代層
122 燃代層の外側部分
124 燃代層の内側部分
10 wood pillar (an example of a wooden structural member)
11 wood pillar (an example of a wooden structural member)
12 Core material (an example of load support)
13 wood pillar (an example of a wooden structural member)
62 Wood plug (an example of plug material)
64 Screw hole 82 Wood plug (an example of plug material)
84 Screw hole 100 Outer layer portion 102 First outer layer portion 104 Second outer layer portion 110 Flame stop layer 112 Mortar plate (an example of a fire stop member)
120 Fuel surging layer 122 Outer portion of fuel surging layer 124 Inner portion of fuel surging layer
Claims (5)
前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有し、前記荷重支持部に接合された外層部と、
を備え、
前記外層部は、
前記燃代層の外側部分を構成する第一外層部と、
前記燃代層の内側部分と前記燃止層とを構成する第二外層部と、
を有し、
前記第一外層部と前記第二外層部とが圧締されて接合されていると共に、前記第二外層部が前記荷重支持部にビスでビス締結され、
前記第一外層部の外面に開口するビス穴が栓材で塞がれ、
前記第二外層部は、前記荷重支持部を構成する木材及び前記第一外層部を構成する木材の少なくとも一方よりも熱慣性が高い木材で構成されている、木質構造部材。 A load support made of wood;
A fuel stop layer that is disposed outside the load support portion and is composed of wood and a fuel stop member; and a fuel allowance layer that is disposed outside the fire stop layer and is composed of wood, and An outer layer part joined to the load support part;
With
The outer layer portion is
A first outer layer portion constituting an outer portion of the fuel surplus layer;
A second outer layer portion constituting the inner portion of the fuel allowance layer and the flame stop layer;
Have
The first outer layer portion and the second outer layer portion are pressed and joined, and the second outer layer portion is screwed to the load support portion with a screw,
A screw hole that opens to the outer surface of the first outer layer portion is closed with a plug material ,
The wooden structure member , wherein the second outer layer portion is made of wood having higher thermal inertia than at least one of the wood constituting the load support portion and the wood constituting the first outer layer portion .
前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有し、前記荷重支持部に接合された外層部と、
を備え、
前記外層部は、
前記燃代層の外側部分を構成する第一外層部と、
前記燃代層の内側部分と前記燃止層とを構成する第二外層部と、
を有し、
前記第一外層部と前記第二外層部とが第一ビスでビス締結されて接合されていると共に、前記第二外層部が前記荷重支持部に第二ビスでビス締結され、
前記第一外層部の外面に開口するビス穴が栓材で塞がれている、木質構造部材。 A load support made of wood;
A fuel stop layer that is disposed outside the load support portion and is composed of wood and a fuel stop member; and a fuel allowance layer that is disposed outside the fire stop layer and is composed of wood, and An outer layer part joined to the load support part;
With
The outer layer portion is
A first outer layer portion constituting an outer portion of the fuel surplus layer;
A second outer layer portion constituting the inner portion of the fuel allowance layer and the flame stop layer;
Have
The first outer layer portion and the second outer layer portion are screwed and joined with a first screw, and the second outer layer portion is screwed to the load support portion with a second screw,
A wood structure member in which a screw hole opened on an outer surface of the first outer layer portion is closed with a plug material.
請求項2に記載の木質構造部材。 The second outer layer portion is made of wood having higher thermal inertia than at least one of the wood constituting the load support portion and the wood constituting the first outer layer portion,
Timber members of the mounting serial to 請 Motomeko 2.
前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有する外層部と、
を備える木質構造部材の製造方法であって、
前記荷重支持部を作製する荷重支持部作製工程と、
前記燃代層の外側部分を構成する第一外層部を作製する第一外層部作製工程と、
前記燃代層の内側部分と前記燃止層とを構成し、前記荷重支持部を構成する木材及び前記第一外層部を構成する木材の少なくとも一方よりも熱慣性が高い木材で構成されている第二外層部を作製する第二外層部作製工程と、
前記第一外層部と前記第二外層部とを圧締して接合したのちに前記第二外層部を前記荷重支持部にビスでビス締結する接合工程と、
前記第一外層部の外面に開口するビス穴を栓材で塞ぐ仕上工程と、
を備える木質構造部材の製造方法。 A load support made of wood;
An outer layer portion disposed on the outside of the load support portion and having a fuel stop layer made of wood and a fire-preventing member, and a fuel allowance layer made of wood placed on the outer side of the fire stop layer; and ,
A method for producing a wooden structure member comprising:
A load support part manufacturing step of manufacturing the load support part;
A first outer layer part production step of producing a first outer layer part constituting the outer portion of the fuel surplus layer;
The inner portion of the fuel allowance layer and the flame stop layer are configured , and is configured of wood having higher thermal inertia than at least one of the wood configuring the load support portion and the wood configuring the first outer layer portion. A second outer layer part production step of producing a second outer layer part;
A joining step of fastening the second outer layer part to the load support part with screws after the first outer layer part and the second outer layer part are pressed and joined;
A finishing step of closing a screw hole opened on the outer surface of the first outer layer portion with a plug material;
A method for manufacturing a wooden structural member.
前記荷重支持部の外側に配置されると共に木材と燃止部材とで構成された燃止層と、前記燃止層の外側に配置され木材で構成された燃代層と、を有する外層部と、
を備える木質構造部材の製造方法であって、
前記荷重支持部を作製する荷重支持部作製工程と、
前記燃代層の外側部分を構成する第一外層部を作製する第一外層部作製工程と、
前記燃代層の内側部分と前記燃止層とを構成する第二外層部を作製する第二外層部作製工程と、
前記第二外層部を前記荷重支持部に第一ビスでビス締結したのちに前記第二外層部に前記第一外層部を第二ビスでビス締結する接合工程と、
前記第一外層部の外面に開口するビス穴を栓材で塞ぐ仕上工程と、
を備える木質構造部材の製造方法。 A load support made of wood;
An outer layer portion disposed on the outside of the load support portion and having a fuel stop layer made of wood and a fire-preventing member, and a fuel allowance layer made of wood placed on the outer side of the fire stop layer; and ,
A method for producing a wooden structure member comprising:
A load support part manufacturing step of manufacturing the load support part;
A first outer layer part production step of producing a first outer layer part constituting the outer portion of the fuel surplus layer;
A second outer layer part production step of producing a second outer layer part constituting the inner portion of the fuel allowance layer and the flame stop layer;
Joining the second outer layer portion to the load support portion with a first screw and then fastening the first outer layer portion to the second outer layer portion with a second screw; and
A finishing step of closing a screw hole opened on the outer surface of the first outer layer portion with a plug material;
A method for manufacturing a wooden structural member.
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