JP6315915B2 - Wood structure member and method for manufacturing wood structure member - Google Patents

Description

  The present invention relates to a wooden structure member and a method for manufacturing the wooden structure member.

  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.

  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.

JP 2009-174286 A JP-A-2005-36456 JP 2005-36457 A JP 2005-48585 A

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.

  In view of the above fact, the present invention has a problem of shortening the manufacturing time of a wooden structure member.

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 .

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.

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.

  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.

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.

  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.

  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.

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.

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.

  According to the present invention, the manufacturing time of a wooden structure member can be shortened.

It is a partial section perspective view of the wood pillar concerning a first embodiment of the present invention. It is sectional drawing which shows the cross section orthogonal to the axial direction of the wooden pillar which concerns on 1st embodiment of this invention. It is process drawing which shows the process of producing a core material part, (A) is a figure of the core material part in the state before pressing a wooden single material, (B) is pressing and integrating the wooden single material. It is a figure which shows the core material part of a state. It is process drawing which shows the process of producing the outer layer part of 1st embodiment in order from (A) to (F). It is process drawing explaining the process of fastening the outer layer part of 1st embodiment to a core material part, (A) is a figure of the state before fastening an outer layer part to a heart material part, (B) is the state of the fastened state. It is a figure which shows a wooden pillar. It is sectional drawing which shows the cross section orthogonal to the axial direction of the wooden pillar which concerns on 2nd embodiment of this invention. It is process drawing which shows the process of producing the outer layer part of 1st embodiment, (A) to (C) is a figure which shows the preparation process of a 1st outer layer part, (D) to (H) is a 2nd outer layer. It is a figure which shows the preparation process of a part. It is process drawing explaining the process of fastening the 1st outer layer part and the 2nd outer layer part of a second embodiment, (A) is a figure of the state before fastening the 1st outer layer part and the 2nd outer layer part, (B) is a figure of the state which fastened the 2nd outer layer part to the core material part, (C) is a figure of the state which fastened the 1st outer layer part to the 2nd outer layer part. It is sectional drawing which shows the cross section orthogonal to the axial direction of the wooden pillar which concerns on 3rd embodiment of this invention, The outer-layer part of 1st embodiment and the 1st of 2nd embodiment are outside the sectional view of this wooden pillar. It is explanatory drawing which illustrated the outer layer part and the 2nd outer layer part.

<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.

  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.

  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.

  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).

  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).

  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).

  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.

  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.

  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.

  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).

  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.

  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.

  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.

  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.

  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.

Where ρ: density (kg / m3)
c: Specific heat (kJ / kgK)
k: Thermal conductivity (kW / mK)
It is.

  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.

  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.

  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.

(Production method)
Below, an example of the manufacturing method of the wooden pillar 10 is demonstrated.

  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.

  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.

  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.

  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).

  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.

  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.

<Action and effect>
Next, functions and effects of the present embodiment will be described.

  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.

  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.

  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.

  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.

  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.

  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.

  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

  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.

  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).

  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.

  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.

<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.

  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.

(Production method)
Below, an example of the manufacturing method of the wooden pillar 11 is demonstrated.

  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).

  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.

  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.

  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).

  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).

  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.

<Action and effect>
Next, functions and effects of the present embodiment will be described.

  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.

  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.

  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.

  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.

  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).

<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.

  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.

  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.

  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.

<Others>
The present invention is not limited to the above embodiment.

  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.

  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.

  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.

  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.

  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).

  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).

  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 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)

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 . 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. 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. 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. 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.