JP2012246609A - Column joint structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a column joint structure which can surely transfer a vertical load from an upper column to a lower column.SOLUTION: A lower column core 20 and an upper column core 26 are joined together with a joint member 16 so that axial force is transferred from the bottom face of the upper column core 26 to the top face of the lower column core 20, thereby surely transferring the vertical load of an upper column 14 to a lower column 12.

Description

  The present invention relates to a column joint structure for joining a wooden lower column and an upper column.

  Patent Document 1 discloses a composite wood structure material having a load support layer made of wood, a flame stop layer provided outside the load support layer, and a burn allowance layer provided outside the flame stop layer. Yes. When such a three-layer composite wood structure material is used as the lower and upper pillars and the upper pillar is placed on the lower pillar and joined, a vertical load is applied from the upper pillar to the lower pillar via the load support layer. Must be joined to be transmitted.

JP 2008-2189 A

  This invention considers the fact which concerns, and makes it a subject to provide the column joining structure which can transmit a vertical load reliably from an upper pillar to a lower pillar.

  The invention according to claim 1 is a wooden lower pillar core material that supports a load, a first dead end layer that surrounds an outer periphery of the lower lower pillar core member, and a first wooden burner that surrounds the outer circumference of the first dead end layer. A lower pillar provided with a surrogate layer, a wooden upper pillar core material supporting a load, a second dead end layer surrounding the outer periphery of the upper lower pillar core member, and a wooden first surrounding the outer circumference of the second dead end layer An upper pillar placed on the lower pillar, and the lower pillar core material so that axial force is transmitted from the lower surface of the upper pillar core material to the upper surface of the lower pillar core material. And a joining member connecting the upper pillar core material.

  In the invention according to claim 1, the upper column is vertically aligned by connecting the lower column core material and the upper column core material by the joining member so that the axial force is transmitted from the lower surface of the upper column core material to the upper surface of the lower column core material. The load can be reliably transmitted to the lower column.

  According to a second aspect of the present invention, in the joining member, the lower pillar core member protruding upward from the upper surface of the first dead end layer is inserted into the lower portion, and protruded downward from the lower surface of the second dead end layer. The upper column core is inserted into the upper part, and is a cylindrical member that connects the lower column core and the upper column core.

  In the invention according to claim 2, the upper column core is displaced laterally with respect to the lower column core from the state in which the lower column core and the upper column are joined by connecting the lower column core and the upper column with the tubular member. Can be prevented. Further, the lower column and the upper column can be joined without causing a cross-sectional defect in the lower column core and the upper column core. That is, the bonding strength between the lower column and the upper column can be improved.

  The invention according to claim 3 includes a third wood burning allowance layer and a third dead end layer provided inside the third burn allowance layer, and surrounds the outer periphery of the cylindrical member. It is a column junction structure having a block body to be arranged.

  In the invention according to claim 3, since the cylindrical member is surrounded by the third dead end layer and the third burning allowance layer, at the time of fire of the lower column core material and the upper column core material at the joint between the lower column and the upper column The temperature rise in can be suppressed, and the fire resistance of the joint between the lower column and the upper column can be ensured.

  According to a fourth aspect of the present invention, in the joining member, a lower portion is inserted into a first insertion portion formed on an upper surface of the lower column core material, and an upper portion is disposed on a second insertion portion formed on a lower surface of the upper column core material. Is an insertion member that connects the lower column core material and the upper column core material so as to suppress relative rotation around the axis between the lower column core material and the upper column core material.

  In the invention according to claim 4, the upper column core material is prevented from shifting laterally with respect to the lower column core material from a state in which the lower column core material and the upper column core material are connected to each other and the lower column and the upper column are joined. be able to. In addition, the lower pillar core material and the upper pillar core material are connected to each other, and the lower pillar and the upper pillar are joined to each other, and the outer periphery is surrounded by the first burning stop layer surrounded by the first burning allowance layer and the second burning allowance layer. Since the insertion member is surrounded on the outer periphery by the second flame stop layer surrounded by, the fire resistance of the joint portion between the lower column and the upper column can be ensured.

  Since the present invention is configured as described above, a vertical load can be reliably transmitted from the upper column to the lower column.

It is explanatory drawing which shows the assembly procedure of the column junction structure which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the assembly procedure of the column junction structure which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the assembly procedure of the column junction structure which concerns on the 2nd Embodiment of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a perspective view which shows the insertion member which concerns on the 2nd Embodiment of this invention. It is front sectional drawing which shows the modification of the column junction structure which concerns on the 2nd Embodiment of this invention. It is front sectional drawing which shows the modification of the column junction structure which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the modification of the joining member which concerns on embodiment of this invention. It is explanatory drawing which shows the assembly procedure of the modification of the column junction structure which concerns on embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. First, the column junction structure according to the first embodiment of the present invention will be described.

  As shown in the front sectional view of FIG. 1C, the column joint structure 10 includes a lower column 12, an upper column 14, a steel tubular member 16 as a joining member, and a block body 18.

  The lower pillar 12 includes a wooden lower pillar core 20 that supports a load, a first dead end layer 22 that surrounds the outer periphery of the lower pillar core 20, and a first first burnup layer that surrounds the outer circumference of the first dead end layer 22. 24. The upper column 14 includes a wooden upper column core material 26 that supports a load, a second flame stop layer 28 that surrounds the outer periphery of the upper column core material 26, and a second wooden burn-in layer that surrounds the outer periphery of the second flame stop layer 28. 30. The upper column 14 is placed on the lower column 12.

  As shown in the perspective views of FIG. 1C and FIG. 2A, the tubular member 16 is a rectangular tube-shaped member, and protrudes upward from the upper surface of the first dead end layer 22. 20 is inserted into the lower portion, and the upper column protrusion 34 of the upper column core 26 protruding downward from the lower surface of the second dead end layer 28 is inserted into the upper portion from the lower surface of the upper column core 26. The lower column core material 20 (lower column projection portion 32) and the upper column core material 26 (upper column projection portion 34) are connected so that the axial force is transmitted to the upper surface of the lower column core material 20. That is, the length of the cylindrical member 16 in the material axis direction (vertical direction) is substantially equal to the total length of the material axis direction (vertical direction) of the lower column protrusion 32 and the upper column protrusion 34. ing.

  As shown in the perspective view of FIG. 2 (b), the block body 18 includes a third burning allowance layer 36 made of wood having a L-shaped cross section and a third burning allowance provided inside the third burning allowance layer 36. And a stop layer 38. And the four block bodies 18 are arrange | positioned so that the corner | angular part of the outer side of the cylindrical member 16 and the corner | angular part of the block body 18 (3rd flame stop layer 38) may be match | combined, FIG.2 (c). As shown in the perspective view, the four block bodies 18 arranged surround the outer periphery of the cylindrical member 16.

  In this state, as shown in FIG. 1 (c), the upper surface of the first combustion allowance layer 24 and the lower surface of the third combustion allowance layer 36 are substantially in contact with each other, and the lower surface of the second combustion allowance layer 30 is The upper surface of the third burning allowance layer 36 substantially contacts and contacts. In addition, the upper surface of the first flame stop layer 22 and the lower end surface of the lower surface of the third flame stop layer 38 and the lower surface of the cylindrical member 16 are substantially in contact with each other, so that the second flame stop layer 28 The lower surface and the upper end surface obtained by combining the upper surface of the third dead end layer 38 and the upper surface of the cylindrical member 16 are substantially in contact with each other.

  Note that the upper surface of the first burnup layer 24 and the lower surface of the third burnup layer 36, the lower surface of the second burnup layer 30 and the upper surface of the third burnup layer 36, the upper surface of the first burnup layer 22 and the third burnup. The bottom surface of the stop layer 38, the top surface of the first stop layer 22 and the bottom surface of the tubular member 16, the bottom surface of the second stop layer 28, the top surface of the third stop layer 38, and the bottom surface of the second stop layer 28 What is necessary is just to oppose the upper surface of the cylindrical member 16. FIG. That is, these surfaces may be in contact with each other or may have a gap. If there is a gap, in order to prevent the heat from entering through this gap, the gap should be closed with the same material as the first dead end layer 22, the second dead end layer 28, and the third dead end layer 38. Although it is preferable, since heat is absorbed from the first flame stop layer 22, the second flame stop layer 28, and the third flame stop layer 38, the gap may be filled with a material that cannot be expected to absorb heat. .

  Next, a method for assembling the column joint structure according to the first embodiment of the present invention will be described.

  First, in the cylindrical member installation step, as shown in the front sectional view of FIG. 1A and FIG. 2A, the lower column protrusion 32 is inserted into the opening 40 below the cylindrical member 16 and fitted. In combination, the cylindrical member 16 is installed on the lower column protrusion 32.

  Next, in the column joining step, as shown in the front cross-sectional view of FIG. 1B and FIG. 2B, the upper column protrusion 34 is inserted into the opening 42 above the tubular member 16 and fitted. Then, the lower surface of the upper column core material 26 is placed on the upper surface of the lower column core material 20, and the lower column 12 and the upper column 14 are joined.

  Next, in the cylindrical member protection step, as shown in FIGS. 1C and 2C, the outer corners of the cylindrical member 16 and the inner side of the block body 18 (the third dead end layer 38). The four block bodies 18 are arranged so as to match the corners of the cylindrical member 16 and surround the outer periphery of the cylindrical member 16. Thereby, the column junction structure 10 is constructed.

  Next, the operation and effect of the column junction structure according to the first embodiment of the present invention will be described.

  In the column joint structure 10 according to the first embodiment of the present invention, as shown in FIG. 1 (c), when a fire occurs, the flame is the first burning allowance layer 24, the second burning allowance layer 30, and the third The burning allowance layer 36 is ignited, and the first burning allowance layer 24, the second burning allowance layer 30, and the third burning allowance layer 36 burn. The burned first burnup layer 24, second burnup layer 30, and third burnup layer 36 are carbonized. Therefore, the heat transfer and oxygen supply from the outside of the lower pillar 12 and the upper pillar 14 to the lower pillar core member 20, the tubular member 16, and the upper pillar core member 26 are carbonized in the first burning allowance layer 24 and the second burning allowance layer. 30 and the third burning allowance layer 36 are cut off, and the first burning stop layer 22, the second burning stop layer 28, and the third burning stop layer 38 absorb heat, so that at the time of fire (heating) and the end of the fire (heating) The temperature rise of the lower pillar core material 20, the cylindrical member 16, and the upper pillar core material 26 after can be suppressed.

  Moreover, since the upper surface of the 1st flame stop layer 22, the lower surface of the 3rd flame stop layer 38, and the lower surface of the 2nd flame stop layer 28, and the upper surface of the 3rd flame stop layer 38 are contacting, these surfaces It can suppress that the heat | fever enters from between, and the temperature of the lower pillar core material 20 and the upper pillar core material 26 rises.

  Therefore, at the time of fire (heating) and after the end of fire (heating), the lower column core material 20 and the upper column core material 26 are kept below the ignition temperature for a predetermined time (for example, 1 hour in the case of fire resistance for 1 hour). The lower pillar core material 20 and the upper pillar core material 26 can be made to burn without burning and function as a structure. Further, by suppressing the temperature rise of the cylindrical member 16, it is possible to ensure the fire resistance of the joint portion between the lower column 12 and the upper column 14.

  In the column joint structure 10, the cylindrical member 16 connects the lower column core material 20 and the upper column core material 26 so that the axial force is transmitted from the lower surface of the upper column core material 26 to the upper surface of the lower column core material 20. The vertical load of the upper column 14 can be reliably transmitted to the lower column 12.

  In the column joint structure 10, the upper column core material 20 is joined to the lower column core material 20 from the state in which the lower column core material 20 and the upper column core material 26 are connected by the tubular member 16 and the lower column 12 and the upper column 14 are bonded. 26 can be prevented from shifting laterally. Further, the lower pillar 12 and the upper pillar 14 can be joined without causing a cross-sectional defect in the lower pillar core material 20 and the upper pillar core material 26. That is, the bonding strength between the lower column 12 and the upper column 14 can be improved.

  In the column joining step, the columns (lower column 12 and upper column 14) having a length equivalent to one floor are joined together, so that the column can be a structural member having a short length. This facilitates operations such as conveying, lifting, moving, and arranging the columns.

  The first embodiment of the present invention has been described above.

  In the first embodiment of the present invention, an example in which the tubular member 16 is a rectangular tube-shaped member has been shown. However, the tubular member is pivoted from the lower surface of the upper column core material 26 to the upper surface of the lower column core material 20. As long as the lower pillar core material 20 and the upper pillar core material 26 can be connected so that force can be transmitted, any shape may be used, and any material may be used. For example, the planar cross-sectional shape of the cylindrical member may be a circle or a polygon. Further, for example, the cylindrical member may be formed of the same material as that of the first dead end layer 22, the second dead end layer 28, and the third dead end layer 38. In this case, the third dead end layer 38 may not be provided on the block body 18.

  A cylindrical member 16 is configured by vertically joining a cylindrical upper member (hereinafter referred to as “upper cylindrical member”) and a cylindrical lower member (hereinafter referred to as “lower cylindrical member”). You may do it. With such a configuration, the upper cylinder member is attached to the upper pillar 14 and the lower cylinder member is attached to the lower pillar 12 at a factory or the like, and the upper cylinder member and the lower cylinder member are joined at the site. The lower pillar 12 and the upper pillar 14 can be joined.

  Further, in the first embodiment of the present invention, in the cylindrical member installation step, the lower column protruding portion 32 is inserted and fitted into the opening 40 at the bottom of the cylindrical member 16, and the upper column protruding in the column joining step. Although the example in which the portion 34 is inserted and fitted into the opening 42 at the upper part of the cylindrical member 16 is shown, the lower column protrusion 32 is fixed to the opening 40 at the lower part of the cylindrical member 16 using an adhesive, The upper column protrusion 34 may be fixed to the opening 42 above the cylindrical member 16.

  Further, in the first embodiment of the present invention, the example in which the outer periphery of the cylindrical member 16 is surrounded by the four block bodies 18 is shown, but the number of block bodies that surround the outer periphery of the cylindrical member 16 may be any number.

  Next, a column junction structure according to a second embodiment of the present invention will be described.

  In the description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted. As shown in the front cross-sectional view of FIG. 3B, the column joint structure 44 of the second embodiment has a lower column 46, an upper column 48, and a steel insertion member 50 as a joining member. .

  As shown in the front sectional view of FIG. 3A, the lower column 46 includes a lower column core material 20, a first burning stop layer 22, and a first burning allowance layer 24, and the upper column 48 is an upper column core material 26. , A second flame stop layer 28 and a second burn allowance layer 30. Further, the upper column 48 is placed on the lower column 46.

  As shown in FIG. 4, which is a cross-sectional view taken along the line AA of FIG. 3A, a cross-shaped groove 52 is formed as a first insertion portion on the upper surface of the lower pillar core material 20 in plan view. Further, as shown in FIG. 5 which is a BB cross-sectional view of FIG. 3A, a cross-shaped groove 54 is formed as a second insertion portion on the lower surface of the upper column core member 26 in plan view. .

  As shown in the perspective view of FIG. 6A, the insertion member 50 is formed of steel plates arranged in a substantially cross shape in plan view. 3A, the lower part of the insertion member 50 is inserted into the groove 52, and the upper part of the insertion member 50 is inserted into the groove 54. As shown in FIG. In the state where the upper column 48 is placed on the upper column 48, the axial force is transmitted from the lower surface of the upper column core material 26 to the upper surface of the lower column core material 20, and the lower column core material 20 and the upper column core material 26 are relative to each other about the axis. The lower pillar core material 20 and the upper pillar core material 26 are connected so as to suppress rotation.

  In this state, as shown in FIG. 3 (b), the upper surface of the first burning allowance layer 24 and the lower face of the second burning allowance layer 30 are substantially in contact with each other, and the upper surface of the first burning stop layer 22 is contacted. The bottom face of the second dead end layer 28 substantially contacts and contacts.

  Note that the upper surface of the first burnup layer 24 and the lower surface of the second burnup layer 30 and the upper surface of the first burnup layer 22 and the lower surface of the second burnup layer 28 may be opposed to each other. That is, these surfaces may be in contact with each other or may have a gap. If there is a gap, it is preferable to close the gap with a material that is the same as the first flame stop layer 22 and the second flame stop layer 28 in order to prevent heat from entering from the gap. Since heat is absorbed from 22 and the second flame stop layer 28, the gap may be filled with a material that cannot be expected to absorb heat.

  Next, a method for assembling the column joint structure according to the second embodiment of the present invention will be described.

  First, in the insertion member installation step, as shown in FIG. 3A, the lower portion of the insertion member 50 is inserted and fitted into the groove 52 formed on the upper surface of the lower column core member 20, and the upper surface of the lower column core member 20 is inserted. The insertion member 50 is installed in the.

  Next, in the column joining step, as shown in FIG. 3B, the upper portion of the insertion member 50 is inserted and fitted into the groove 54 formed on the lower surface of the upper column core member 26, and the lower column 46 (lower column) The lower surface of the upper column 48 (upper column core material 26) is placed on the upper surface of the core material 20), and the lower column 46 and the upper column 48 are joined. Thereby, the column junction structure 44 is constructed.

  Since the groove 52 is formed in the lower column core material 20 and the groove 54 is formed in the upper column core material 26, the insertion member 50 is connected to the first dead end layer 22 and the second in the state shown in FIG. The outer periphery is surrounded by the flame stop layer 28.

  Next, the operation and effect of the column joint structure according to the second embodiment of the present invention will be described.

  In the column joint structure 44 according to the second embodiment of the present invention, when a fire occurs, heat from the outside of the lower column 46 and the upper column 48 to the lower column core member 20, the insertion member 50, and the upper column core member 26. Transmission and oxygen supply are cut off by the carbonized burnup layer 24 and the second burnup layer 30 and the first burnup layer 22 and the second burnup layer 28 absorb heat. The temperature rise of the lower column core material 20, the insertion member 50, and the upper column core material 26 after the completion of (heating) can be suppressed.

  Moreover, since the upper surface of the 1st flame stop layer 22 and the lower surface of the 2nd flame stop layer 28 are contacting, heat | fever enters from between these surfaces, and the lower column core material 20 and the upper column core material 26 of An increase in temperature can be suppressed.

  Therefore, at the time of fire (heating) and after the end of fire (heating), the lower column core material 20 and the upper column core material 26 are kept below the ignition temperature for a predetermined time (for example, 1 hour in the case of fire resistance for 1 hour). The lower pillar core material 20 and the upper pillar core material 26 can be made to burn without burning and function as a structure.

  Further, by suppressing the temperature rise of the insertion member 50, it is possible to ensure the fire resistance of the joint portion between the lower column 46 and the upper column 48. In other words, in the column joint structure 44, the insertion member 50 surrounds the outer periphery with the first burning allowance layer 24 in a state where the lower pillar core material 20 and the upper pillar core material 26 are connected and the lower pillar 46 and the upper pillar 48 are joined. Since the outer periphery is surrounded by the first flame stop layer 22 and the second flame stop layer 28 surrounded by the second burn allowance layer 30, the fire resistance of the joint between the lower column 46 and the upper column 48 Can be secured.

  Further, in the column joint structure 44, by connecting the lower column core material 20 and the upper column core material 26 by the insertion member 50 so that the axial force is transmitted from the lower surface of the upper column core material 26 to the upper surface of the lower column core material 20, The vertical load of the upper column 48 can be reliably transmitted to the lower column 46.

  In the column joint structure 44, the upper column core material 26 is connected to the lower column core material 20 from the state in which the lower column core material 20 and the upper column core material 26 are connected by the insertion member 50 and the lower column 46 and the upper column 48 are bonded. Can be prevented from shifting laterally.

  Further, in the column joining step, the columns (lower column 46 and upper column 48) having a length of one floor are joined to each other, so that the column can be a structural member having a short length. This facilitates operations such as conveying, lifting, moving, and arranging the columns.

  The second embodiment of the present invention has been described above.

  In the second embodiment of the present invention, an example in which the insertion member 50 is a steel plate arranged in a substantially cross shape in a plan view is shown. However, the insertion member is formed from the lower surface of the upper column core material 26 to the lower column. As long as the lower pillar core material 20 and the upper pillar core material 26 can be connected so that the axial force is transmitted to the upper surface of the core material 20, any shape may be used, and any material may be used.

  For example, the shape shown in the perspective views of FIGS. FIG. 6B shows an insertion member 56 constituted by opposing flat plates arranged substantially in parallel, and FIG. 6C shows an insertion constituted by four rod-like members located at the four corners of a square. A member 58 is shown, and FIG. 6D shows an insertion member 60 formed of a cylindrical member having a substantially square plane cross section. If the length in the vertical direction of the insertion members 50, 56, 58, 60 is increased, a bending load can be transmitted between the lower column 46 and the upper column 48 via the insertion members 50, 56, 58, 60. Can do.

  Further, in the second embodiment of the present invention, in the insertion member installation step, the lower part of the insertion member 50 is inserted and fitted into the groove 52 formed on the upper surface of the lower column core member 20, and the insertion is performed in the column joining step. Although the example in which the upper portion of the member 50 is inserted into the groove 54 formed on the lower surface of the upper pillar core material 26 and fitted is shown, the lower portion of the insertion member 50 is fixed to the groove 52 using an adhesive, and the insertion member The upper part of 50 may be fixed to the groove 54.

  The first and second embodiments of the present invention have been described above.

  The lower pillar core material 20, the first burning allowance layer 24, the second burning allowance layer 30, and the third burning allowance layer 36 shown in the first and second embodiments of the present invention are made of wood. That's fine. For example, the lower pillar core material 20, the first burning allowance layer 24, the second burning allowance layer 30, and the third burning allowance layer 36 are pillar materials used for general wooden constructions such as Yonematsu, Karamatsu, cypress, cedar and Asunaro. (Hereinafter referred to as “general timber”), or these general timbers are processed into a prismatic single material, and a plurality of these single materials are assembled and bonded to each other with an adhesive. You may form by forming.

  Moreover, the 1st flame stop layer 22, the 2nd flame stop layer 28, and the 3rd flame stop layer 38 should just be a layer which can absorb heat. For example, the first dead end layer 22, the second dead end layer 28, and the third dead end layer 28 are made of a material having a heat capacity larger than that of general wood, a material having higher thermal insulation than general wood, or a heat higher than that of general wood. You may form with a material with high inertia, and you may form combining these materials and general wood.

  Examples of the material having a larger heat capacity than general wood include inorganic materials such as mortar, stone, glass, and fiber reinforced cement, and various metal materials. Examples of the material having higher heat insulation than general wood include calcium silicate board, rock wool, and glass wool. Examples of the material having higher thermal inertia than general wood include wood such as Selangan Batu, Jara, and Bongoshi.

  Further, in the first and second embodiments of the present invention, the example in which the upper column core material 26 is placed directly on the upper surface of the lower column core material 20 has been shown, but the upper surface of the lower column core material 20, the lower surface of the upper column core material 26, An iron plate may be provided between the two. 6 (e) to 6 (h), the insertion members 50, 56, 58, 60 of FIGS. 6 (a) to 6 (d), the upper surface of the lower column core material 20, and the lower surface of the upper column core material 26. The insertion members 64, 66, 68, and 70 are integrated with the iron plate 62 provided between the two.

  Further, the upper pillars 14 and 48 are arranged on the lower pillars 12 and 46 so as to have a gap of about 10 to 20 mm between the upper surface of the lower pillar core material 20 and the lower surface of the upper pillar core material 26, and this gap You may make it fill with a filler.

  By providing an iron plate between the upper surface of the lower column core material 20 and the lower surface of the upper column core material 26 or filling the filler, the vertical surfaces of the upper columns 14 and 48 are uniformly applied to the upper surfaces of the lower columns 12 and 46. A load can be transmitted. The filler may be any material that can fill the gap and can transmit the load with certainty. Examples of the filler include mortar and fiber reinforced cement.

  Further, an iron plate is provided between the upper surface of the lower column core material 20 and the lower surface of the upper column core material 26, and between the upper surface of the lower column core material 20 and the lower surface of the iron plate, and between the lower surface of the upper column core material 26 and the upper surface of the iron plate. You may make it fill with a filler in between. The column joint structure 76 shown in the front sectional view of FIG. 7 shows an example in which the lower column core material 20 and the upper column core material 26 are connected by the insertion member 64 of FIG. 6 (e), and the front sectional view of FIG. In the illustrated column joint structure 78, the lower column core material 20 and the upper column core material 26 are connected by the insertion member 66 of FIG. 6F, and the upper column core material is connected between the upper surface of the lower column core material 20 and the lower surface of the iron plate 62. The example which filled with the filler M between the lower surface of 26 and the upper surface of the iron plate 62 is shown.

  Further, in the first embodiment of the present invention, the example in which the joining member is the cylindrical member 16 and the joining member is the insertion member 50 in the second embodiment of the present invention is shown. One may be a cylindrical member and the other may be an insertion member.

  For example, like the joining member 72 shown in the perspective view of FIG. 9, the upper part has the same shape as the upper part of the insertion member 50 (see FIG. 6A), and the lower part has the same shape as the lower part of the tubular member 16. (See FIG. 2A). In this case, the column joining structure 74 is constructed by the assembly procedure of FIGS.

  In the first and second embodiments, the lower pillar core material 20, the upper pillar core material 26, the first burning stop layer 22, the second burning stopping layer 28, the first burning allowance layer 24, and the second burning allowance layer 30. Although an example using pillars (lower pillars 12 and 46, upper pillars 14 and 48) provided with the above is shown, the first and second embodiments can also be applied to general wooden beams. is there.

  As mentioned above, although 1st and 2nd embodiment of this invention was described, this invention is not limited to such embodiment at all, You may use combining 1st and 2nd embodiment, Needless to say, the present invention can be implemented in various modes without departing from the gist of the present invention.

10, 44, 74, 76, 78 Column joint structure 12, 46 Lower column 14, 48 Upper column 16 Tubular member (joint member)
18 Block body 20 Lower pillar core material 22 1st burning stop layer 24 1st burning allowance layer 26 Upper pillar core material 28 2nd burning stop layer 30 2nd burning allowance layer 36 3rd burning allowance layer 38 3rd burning stop layers 50 and 56 , 58, 60, 64, 66, 68, 70 Insertion member (joining member)
52 Groove (first insertion part)
54 Groove (second insertion part)
72 Joining members

Claims (4)

A lower pillar provided with a wooden lower pillar core material for supporting a load, a first dead end layer surrounding an outer periphery of the lower lower pillar core member, and a first wooden burning allowance layer surrounding an outer circumference of the first dead end layer When,
A wooden upper pillar core material for supporting a load; a second dead end layer surrounding the outer periphery of the upper lower pillar core member; and a second wooden burn allowance layer surrounding the outer circumference of the second dead end layer; An upper pillar placed on the pillar;
A joining member that connects the lower column core material and the upper column core material so that axial force is transmitted from the lower surface of the upper column core material to the upper surface of the lower column core material;
Column junction structure having   In the joining member, the lower pillar core member protruding upward from the upper surface of the first dead end layer is inserted into the lower part, and the upper pillar core member protruding downward from the lower face of the second dead end layer is inserted into the upper part. The column joint structure according to claim 1, which is a cylindrical member that connects the lower column core material and the upper column core material.   It has a block body arranged to surround the outer periphery of the cylindrical member, comprising a third wooden burning allowance layer and a third burning stop layer provided inside the third burning allowance layer. 2. The column junction structure according to 2.   The joining member has a lower portion inserted in a first insertion portion formed on an upper surface of the lower column core material, and an upper portion inserted in a second insertion portion formed on a lower surface of the upper column core material, so that the lower column core material The column joint structure according to claim 1, wherein the column connection structure is an insertion member that connects the lower column core material and the upper column core material so as to suppress relative rotation about the axis between the upper column core material and the upper column core material.