Construction method of wooden pillar and beam

Abstract

To provide a construction method of wooden pillar and beam capable of improving the workability of a through-joint structure.SOLUTION: A construction method of wooden pillar and beam includes the following steps of: inserting a rod-shaped member 50 into a through joint J where a wooden beam 40 is inserted through a through hole 22 in a wooden pillar 20 from the outer surface 20S of the wooden pillar 20; and inserting the wedge member 80 into the through hole 22 with the wooden pillar 20 and the wooden beam 40 joined together.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a construction method for wooden columns and beams.

Background Art

[0002] A construction method for wooden columns and beams in which wooden columns and wooden beams are assembled on the ground is known (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, a through-joint structure is known in which a wooden beam is passed through a through-hole of a wooden column and a wedge member is inserted into the through-hole to join the wooden column and the wooden beam.

[0005] In this through-joint structure, there is a possibility that the wooden column and the wooden beam may be displaced when the wedge member is inserted into the through-hole or before the wedge member is inserted into the through-hole, which takes time and effort in construction.

[0006] In consideration of the above facts, an object of the present invention is to improve the workability of the through-joint structure of wooden columns and wooden beams.

Means for Solving the Problems

[0007] In the construction method for wooden columns and beams according to claim 1, a rod-shaped member is inserted into a through-joint portion where a wooden beam is passed through a through-hole of a wooden column from the outer surface of the wooden column, and in a state where the wooden column and the wooden beam are joined, a wedge member is inserted into the through-hole.

[0008] According to the construction method of the wooden column and beam according to claim 1, a rod-shaped member is inserted into the through-hole of the wooden column from the outer surface of the wooden column at the through-joint portion where the wooden beam penetrates the through-hole of the wooden column, and with the wooden column and the wooden beam joined, a wedge member is inserted into the through-hole of the wooden column.

[0009] By joining the wooden column and the wooden beam with the rod-shaped member in this way before inserting the wedge member into the through-hole of the wooden column, displacement between the wooden column and the wooden beam is suppressed when inserting the wedge member into the through-hole of the wooden column or before inserting the wedge member into the through-hole of the wooden column. Therefore, the workability of the through-joint structure of the wooden column and the wooden beam is improved.

[0010] The construction method of the wooden column and beam according to claim 2 is the construction method of the wooden column and beam according to claim 1, wherein the rod-shaped member is located at the center of the joint portion of the wooden beam disposed in the through-hole when the through-joint portion is viewed from the beam width direction of the wooden beam.

[0011] According to the construction method of the wooden column and beam according to claim 2, the rod-shaped member is located at the center of the joint portion of the wooden beam disposed in the through-hole of the wooden column when the through-joint portion between the wooden column and the wooden beam is viewed from the beam width direction of the wooden beam. Thereby, the workability of the rod-shaped member is improved. Therefore, the workability of the through-joint structure of the wooden column and the wooden beam is further improved.

[0012] The construction method of the wooden column and beam according to claim 3 is the construction method of the wooden column and beam according to claim 1 or claim 2, wherein the ground assembly is used to penetrate the wooden beam into the through-hole of the wooden column and insert the rod-shaped member into the through-joint portion.

[0013] According to the construction method of the wooden column and beam according to claim 3, the ground assembly is used to penetrate the wooden beam into the through-hole of the wooden column and insert the rod-shaped member from the outer surface of the wooden column into the through-joint portion. By thus forming the ground assembly of the wooden column and the wooden beam, the workability of the through-joint structure of the wooden column and the wooden beam is further improved.

[0014] Also, when constructing a wooden column and a wooden beam on the groundwork, by joining the wooden column and the wooden beam with a rod-shaped member, displacement between the wooden column and the wooden beam is suppressed when inserting a wedge member into the through-hole of the wooden column or before inserting the wedge member into the through-hole of the wooden column. Therefore, the workability of the through-joint structure of the wooden column and the wooden beam is further improved.

Advantages of the Invention

[0015] As described above, according to the present invention, the workability of the through-joint structure of the wooden column and the wooden beam can be improved.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0017] Hereinafter, an embodiment will be described with reference to the drawings.

[0018] (Through-joint structure of wooden columns and beams) First, the through-joint structure of wooden columns and beams according to an embodiment will be described.

[0019] In FIGS. 1, 2, and 3, a wooden column 20 and a wooden beam 40 to which the through-joint structure of wooden columns and beams according to this embodiment is applied are shown. The wooden column 20 and the wooden beam 40 are formed of, for example, wood materials such as lumber and glued laminated timber. The wooden column 20 and the wooden beam 40 are through-jointed at the through-joint portion J.

[0020] (Wooden column) The wooden column 20 is formed in a rectangular cross-section (prismatic shape). Further, the wooden column 20 has a joint portion 20A (see FIG. 3) to which the wooden beam 40 is joined. As shown in FIG. 2, a through-hole 22 is formed in the outer surface 20S of the joint portion 20A. The through-hole 22 penetrates the joint portion 20A in the width direction of the wooden column 20 (the material axis direction of the wooden beam 40). Further, as shown in FIG. 3, the cross-sectional shape of the through-hole 22 is a rectangular shape corresponding to the cross-sectional shape of the wooden beam 40.

[0021] (Wedging member) As shown in FIG. 2, a wedging member 30 is attached to the upper inner wall surface 22U of the through-hole 22. The wedging member 30 is a member that fills the gap between the upper inner wall surface 22U of the through-hole 22 and the inclined surfaces 80U of a pair of wedging members 80 described later.

[0022] The upper surface 30U of the wedging member 30 is a flat surface (horizontal plane). The wedging member 30 is fixed to the upper inner wall surface 22U of the through-hole 22 by, for example, screws (not shown) in a state where it is overlapped with the upper inner wall surface 22U of the through-hole 22.

[0023] The lower surface of the wedging member 30 is formed in a substantially triangular shape that protrudes downward when viewed from the beam width direction of the wooden beam 40. A pair of inclined surfaces 30L are formed on the lower surface of the wedging member 30. The pair of inclined surfaces 30L are inclined upward from the central side to both end sides of the wedging member 30 when viewed from the beam width direction of the wooden beam 40.

[0024] Timber beam As shown in FIG. 3, the timber beam 40 is formed in a rectangular cross-sectional shape. Further, the timber beam 40 passes through the through-hole 22 of the timber column 20. Note that the timber beam 40 is installed between a pair of adjacent timber columns 20 and constitutes a structure together with the pair of timber columns 20.

[0025] As shown in FIG. 2, the timber beam 40 has a joint portion 40A and beam portions 40B respectively arranged on both sides of the joint portion 40A. The joint portion 40A is arranged in the through-hole 22 of the timber column 20, and its lower surface 40L is placed on the lower inner wall surface 22L of the through-hole 22. On the other hand, the beam portion 40B is arranged outside the through-hole 22 of the timber column 20.

[0026] Wedging member A pair of wedging members 80 are fixing members that are respectively inserted into the through-hole 22 of the timber column 20 from both sides of the through-hole 22 of the timber column 20 to fix the timber beam 40 to the timber column 20. Each wedging member 80 is inserted (fitted) into the gap between the inclined surface 30L of the wedge receiving member 30 provided on the upper inner wall surface 22U and the upper surface 40U of the timber beam 40, and by filling the gap, the timber beam 40 is fixed to the timber column 20.

[0027] The pair of wedging members 80 are made of, for example, metal and are formed in a triangular shape as a whole when viewed from the beam width direction of the timber beam 40. The lower surface 80L of each wedging member 80 is a flat surface (horizontal surface) and is placed on the upper surface 40U of the timber beam 40.

[0028] The upper surface of each wedging member 80 is an inclined surface 80U that inclines downward toward the timber column 20 side when viewed from the beam width direction of the timber beam 40. The inclination angle of the inclined surface 80U is substantially the same as the inclination angle of the inclined surface 30L of the aforementioned wedge receiving member 30. This inclined surface 80U is overlapped with the inclined surface 30L of the wedge receiving member 30.

[0029] Here, a pair of wedge members 80 are pushed in (driven in) between the inclined surface 30L of the wedge receiving member 30 and the upper surface 40U of the wooden beam 40 from both sides of the through-hole 22 of the wooden column 20. Thereby, the wooden beam 40 is fixed to the wooden column 20.

[0030] (Rod-shaped member) As shown in FIGS. 1, 2, and 3, the wooden column 20 and the wooden beam 40 are positioned by a rod-shaped member 50 at the through-joint portion J. The rod-shaped member 50 is a temporary member for joining (temporarily joining) the wooden column 20 and the wooden beam 40 during the construction of the wooden column 20 and the wooden beam 40. This rod-shaped member 50 is, for example, a drift pin, a lag screw bolt, a round bar steel, etc., and is inserted into the through-joint portion J from the outer surface 20S of the wooden column 20.

[0031] Specifically, as shown in FIG. 2, when the through-joint portion J is viewed in the beam width direction of the wooden beam 40, insertion holes 24, 44 (see FIG. 3) into which the rod-shaped member 50 is inserted are formed at the central portion of the through-joint portion J. As shown in FIG. 3, the insertion holes 24 are respectively formed on the outer surfaces 20S on both sides of the through-hole 22 at the joint portion 20A of the wooden column 20.

[0032] Each insertion hole 24 is a circular through-hole that penetrates a pair of side wall portions 20A1 facing each other in the beam width direction of the wooden beam 40 in the beam width direction (a direction intersecting the through-hole 22). Also, a plurality of insertion holes 24 formed in one side wall portion 20A1 and a plurality of insertion holes 24 formed in the other side wall portion 20A1 are arranged to face each other.

[0033] The diameter of the insertion hole 24 is slightly larger than the diameter of the rod-shaped member 50. The rod-shaped member 50 is fitted (driven) into this insertion hole 24.

[0034] As shown in FIG. 2, the insertion hole 44 is a through hole that penetrates the center of the joint portion 40A of the wooden beam 40 when viewed from the beam width direction. Further, the insertion hole 44 is a long hole that extends in the beam forming direction of the wooden beam 40. Thereby, construction errors and the like in the beam forming direction of the wooden column 20 and the wooden beam 40 can be absorbed.

[0035] As shown in FIG. 3, the insertion hole 44 communicates with the insertion holes 24 formed in the pair of side wall portions 20A1 of the wooden column 20, respectively. A rod-shaped member 50 is inserted into these insertion holes 24, 44 along the beam width direction of the wooden beam 40.

[0036] As shown in FIG. 2, the rod-shaped member 50 is located at the center of the through joint portion J when viewed from the beam width direction of the wooden beam 40. The wooden column 20 and the wooden beam 40 are positioned by this rod-shaped member 50.

[0037] Note that the rod-shaped member 50 may be removed or left after joining the wooden column 20 and the wooden beam 40 with the pair of wedge members 80. Further, the rod-shaped member 50 is not limited to a temporary installation and may be a permanent installation.

[0038] (Construction method of wooden column and beam) Next, an example of the construction method of the wooden column and beam according to the present embodiment will be described.

[0039] In FIG. 4, as an example, a plurality (three) of wooden columns 20 are erected. The plurality of wooden columns 20 are erected at intervals. Through holes 22 through which upper and lower wooden beams 40 penetrate are formed in the upper and lower portions of each wooden column 20, respectively.

[0040] Note that through holes 28 through which upper and lower wooden beams (not shown) orthogonal to the wooden beam 40 penetrate are formed in the upper and lower portions of each wooden column 20, respectively.

[0041] At the lower part of a plurality of wooden columns 20, a lower wooden beam 40 is joined. The lower wooden beam 40 penetrates through through holes 22 formed at the lower part of the plurality of wooden columns 20. The through-joint portion J between this wooden beam 40 and each wooden column 20 is joined by a rod-shaped member 50 and a wedge member 80 (see Fig. 3).

[0042] Hereinafter, taking the case of joining an upper wooden beam 40 to a plurality of wooden columns 20 as an example, the construction method of the wooden column beam according to this embodiment will be described.

[0043] (Wooden beam installation process) In the construction method of the wooden column beam according to this embodiment, first, starting from the state shown in Fig. 4, in the wooden beam installation process, the wooden beam 40 is lifted by a hoist or the like (not shown), and the wooden beam 40 is sequentially penetrated through the through holes 22 formed at the upper part of the plurality of erected wooden columns 20. Then, as shown in Fig. 5, the joint portion 40A of the wooden beam 40 is arranged in the through holes 22 of the plurality of wooden columns 20, and the lower surface 40L of the joint portion 40A is placed on the lower inner wall surface 22L (see Fig. 2) of the through hole 22.

[0044] (Positioning process) Next, in the positioning process, at the through-joint portion J between the wooden beam 40 and each wooden column 20, the rod-shaped member 50 is inserted from the outer surface of the wooden column 20 to join (temporarily join) the wooden beam 40 and each wooden column 20. Thereby, the wooden beam 40 and each wooden column 20 are positioned.

[0045] (Wedge member insertion process) Next, as shown in Fig. 2, in the wedge member insertion process, at the through-joint portion J between the wooden beam 40 and each wooden column 20, the wedge members 80 are respectively inserted into the through holes 22 of the wooden column 20 from both sides to join the wooden beam 40 and each wooden column 20.

[0046] Specifically, the wedge members 80 are pushed in between the inclined surfaces 30L of the wedge receiving members 30 attached to the upper inner wall surface 22U of the through hole 22 of the wooden column 20 and the upper surface 40U of the wooden beam 40 from both sides of the through hole 22 of the wooden column 20. As a result, each wedge member 80 is fitted between the inclined surface 30L of the wedge receiving member 30 and the upper surface 40U of the wooden beam 40, and the wooden beam 40 is joined (fixed) to each wooden column 20.

[0047] (Effect) Next, the effects of the present embodiment will be described.

[0048] As shown in FIG. 3, according to the present embodiment, the rod-shaped member 50 is inserted into the insertion holes 24 and 44 of the through joint portion J in which the wooden beam 40 penetrates the through hole 22 of the wooden column 20 from the outer surface 20S of the wooden column 20, and the wooden column 20 and the wooden beam 40 are joined (temporarily joined). In this state, a pair of wedge members 80 are inserted into the through hole 22 from both sides of the wooden column 20.

[0049] By joining the wooden column 20 and the wooden beam 40 with the rod-shaped member 50 before inserting the pair of wedge members 80 into the through hole 22 of the wooden column 20 in this way, when inserting the pair of wedge members 80 into the through hole 22 of the wooden column 20 or before inserting the pair of wedge members 80 into the through hole 22 of the wooden column 20, the displacement between the wooden column 20 and the wooden beam 40 is suppressed. Therefore, the workability of the wooden column 20 and the wooden beam 40 is improved.

[0050] Also, as shown in FIGS. 1 and 2, the rod-shaped member 50 is located at the center of the joint portion 40A of the wooden beam 40 disposed in the through hole 22 of the wooden column 20 when the through joint portion J of the wooden column 20 and the wooden beam 40 is viewed in the beam width direction of the wooden beam 40. Thereby, the workability of the rod-shaped member 50 is improved. Therefore, the workability of the through joint structure of the wooden column 20 and the wooden beam 40 is further improved.

[0051] Furthermore, as shown in FIG. 2, the insertion hole 44 formed in the joint portion 40A of the wooden beam 40 is an elongated hole extending in the beam forming direction of the wooden beam 40. Thereby, construction errors and the like in the beam forming direction of the wooden column 20 and the wooden beam 40 can be absorbed. Therefore, the workability of the through joint structure of the wooden column 20 and the wooden beam 40 is further improved.

[0052] (Modification example) Next, a modification example of the above embodiment will be described.

[0053] The method for constructing a wooden column and beam according to the above embodiment is also applicable when assembling the wooden column 20 and the wooden beam 40 on the ground. Specifically, for example, in a site yard or the like, when assembling on the ground, the wooden beam 40 is passed through the through hole 22 of the horizontally laid wooden column 20, and the rod-shaped member 50 is inserted into the through joint portion J from the outer surface 20S of the wooden column 20.

[0054] By assembling the wooden column 20 and the wooden beam 40 on the ground in this way, the workability of the through joint structure of the wooden column 20 and the wooden beam 40 is further improved.

[0055] Also, when assembling the wooden column 20 and the wooden beam 40 on the ground, by joining the wooden column 20 and the wooden beam 40 with the rod-shaped member 50, when inserting the pair of wedge members 80 into the through hole 22 of the wooden column 20, or before inserting the pair of wedge members 80 into the through hole 22 of the wooden column 20, the displacement between the wooden column 20 and the wooden beam 40 is suppressed. Therefore, the workability of the through joint structure of the wooden column 20 and the wooden beam 40 is further improved.

[0056] Note that when assembling the wooden column 20 and the wooden beam 40 on the ground, the pair of wedge members 80 may be inserted into the through hole 22 of the wooden column 20 by assembling on the ground, or may be inserted into the through hole 22 of the wooden column 20 after the assembled wooden column 20 and wooden beam 40 are erected.

[0057] Further, as shown in FIGS. 6 and 7, when assembling the wooden column 20 and the wooden beam 40, as indicated by the arrow a, the wooden beam 40 may be passed through the through hole 22 of the wooden column 20 by sliding the wooden beam 40 on the roller conveyor 6.

[0058] Specifically, the wooden column 20 and the wooden beam 40 are respectively supported by the gantries 70, 74. The plurality of gantries 70 that support the wooden column 20 are connected by the anti-tipping members 72. The gantry 74 that supports the wooden beam 40 is provided with a roller conveyor 6, and the wooden beam 40 is slidably supported by the roller conveyor 6.

[0059] By slidably supporting the wooden beam 40 with the roller conveyor 6 in this way, the wooden beam 40 can be easily passed through the through hole 22 of the wooden column 20.

[0060] Also, FIGS. 8 and 9 show a flat placement gantry 90 on which the assembled wooden column 20 and wooden beam 40 (hereinafter referred to as "wooden column-beam unit 60") are stacked in multiple stages and placed flat. The flat placement gantry 90 includes a plurality of gantry units 92 that can be stacked.

[0061] Each gantry unit 92 has a plurality of mounting tables 94, a plurality of support legs 96 that support each mounting table 94, and a plurality of anti-tipping members 98. The plurality of mounting tables 94 are formed of, for example, H-shaped steel or the like. Also, the plurality of mounting tables 94 are arranged along the material axis direction of the wooden beam 40 and are spaced apart in the material axis direction of the wooden column 20. The wooden column 20 of the wooden column-beam unit 60 is placed on these mounting tables 94.

[0062] The plurality of support legs 96 are formed of, for example, H-shaped steel and support both ends of the mounting table 94 respectively. Also, the plurality of support legs 96 are placed on the mounting tables 94 of other gantry units 92. By these support legs 96, an installation space for the wooden column-beam unit 60 is formed between the mounting table 94 and the mounting tables 94 of other gantry units 92.

[0063] In addition, in this embodiment, although a mounting table 94 not supported by the support legs 96 is installed at the lowermost stage of the horizontal mounting base 90, the mounting table 94 at the lowermost stage can be omitted as appropriate.

[0064] The plurality of anti-tipping members 98 are formed of, for example, a single pipe or the like. Also, the plurality of anti-tipping members 98 are bridged over adjacent mounting tables 94 in each gantry unit 92. These anti-tipping members 98 prevent the gantry unit 92 from tipping over.

[0065] With such a horizontal mounting base 90, by stacking a plurality of wooden column-beam units 60 in multiple stages and placing them horizontally, the plurality of wooden column-beam units 60 can be efficiently temporarily placed in a narrow temporary storage space.

[0066] Also, in FIG. 10, as an example, a traverser 100 for lifting the wooden column-beam unit 60 is shown. The traverser 100 has a traverser body 102, a wire 104, a chain block 106, and a plurality of suspension members 108.

[0067] The traverser body 102 is formed of, for example, H-shaped steel and is arranged substantially horizontally. This traverser body 102 is lifted by a hoist (not shown) via the wire 104. Note that the chain block 106 enables adjustment of the suspension length of the wire 104.

[0068] The plurality of suspension members 108 are configured to suspend the upper end portions of the respective wooden columns 20 of the wooden column-beam unit 60 at two points, for example. Also, the plurality of suspension members 108 are arranged at intervals in the material axis direction of the traverser body 102 so as to be located above the respective wooden columns 20. That is, the suspension points P of the suspension members 108 are located directly above the respective wooden columns 20 of the wooden column-beam unit 60. Thereby, when the wooden column-beam unit 60 is lifted by the traverser 100, the bending stress generated in each wooden column 20 is reduced.

[0069] In the above-described embodiment, when the through-joint portion J of the wooden column 20 and the wooden beam 40 is viewed in the beam-width direction of the wooden beam 40, the rod-shaped member 50 is positioned at the center of the through-joint portion J. However, the rod-shaped member 50 may be arranged not only at the center of the through-joint portion J but also at a position deviated from the center when the through-joint portion J is viewed in the beam-width direction of the wooden beam 40.

[0070] In the above-described embodiment, the insertion hole 44 formed in the joint portion 40A of the wooden beam 40 is a long hole extending in the beam-forming direction of the wooden beam 40. However, the insertion hole 44 is not limited to a long hole extending in the beam-forming direction of the wooden beam 40, but may be a long hole extending in the material-axis direction of the wooden beam 40. Further, the insertion hole 44 is not limited to a long hole, and may be a circular round hole.

[0071] In the above-described embodiment, one rod-shaped member 50 is inserted into the through-joint portion J of the wooden column 20 and the wooden beam 40. However, a plurality of rod-shaped members 50 may be inserted into the through-joint portion J. That is, at least one rod-shaped member 50 can be inserted into the through-joint portion J.

[0072] In the above-described embodiment, the wedge receiving member 30 is attached to the upper inner wall surface 22U of the through-hole 22 of the wooden column 20. However, the wedge receiving member 30 may be provided as necessary and can be omitted as appropriate. Further, the shapes of the wedge receiving member 30 and the wedge member 80 can also be changed as appropriate.

[0073] Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in appropriate combination, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

Explanation of Reference Numerals

[0074] 20 Wooden column 20S Outer surface 22 Through-hole 40 Wooden beam 40A Joint portion 50 Rod-shaped member 80 Wedge member J butt joint

Claims

1. In a through-joint portion where a wooden beam penetrates through a through-hole of a wooden column, a rod-shaped member is inserted from the outer surface of the wooden column, and in a state where the wooden column and the wooden beam are joined, a wedge member is inserted into the through-hole. A construction method for a wooden column and beam.

2. The rod-shaped member is located at the center of the joint portion of the wooden beam disposed in the through-hole when the through-joint portion is viewed in the beam width direction of the wooden beam. The construction method for a wooden column and beam according to Claim 1.

3. By means of the ground structure, the wooden beam is made to penetrate through the through-hole of the wooden column, and the rod-shaped member is inserted into the through-joint portion. The construction method for a wooden column and beam according to Claim 1 or Claim 2.

Images