Joint structure

Abstract

To provide a bonding structure of a column and a beam which facilitates construction.SOLUTION: A bonding structure 10 is formed at a bonding part of upper and lower columns 1 and left and right beams 2. The column 1 and the beam 2 are formed by wood materials, a lower bonding member 11 and an upper bonding member 12 are fixed to an upper end face of the lower stage column 1 and a lower end face of the upper stage column 1, respectively, and the lower bonding member 11 and the upper bonding member 12 are bonded. An end part of the beam 2 closer to the lower stage column 1 disposed on the side of the lower stage column 1 and the lower bonding member 11 are bonded using a beam bonding member 13 fixed to the end part of the beam 2 and a bonding plate 115 extending from the lower bonding member 11 laterally.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a column-beam joint structure. [Background technology]

[0002] In wooden buildings, it is common to use pin joints with plates and drift pins for the joints between columns and beams. However, precision is required for driving in the drift pins, and many drift pins must be driven in during construction, which makes construction difficult.

[0003] Patent Document 1 discloses an example of using a specific shaped metal joint at the joint between a pillar and a beam as an improved construction method of the conventional framework construction method for wooden buildings, etc. In Patent Document 1, upper and lower pillars are inserted and fastened into the space of a steel joint member (metal joint), and a beam is set on the receiving plate of the joint member and fastened. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-165837 Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 targets small-scale buildings such as wooden houses, and uses joint members roughly equivalent in size to the size (cross-sectional size) of the columns, and the columns are inserted into the spaces that the joint members have. On the other hand, when applying similar joint members to large-scale buildings, the size of the columns is expected to become even larger, and using joint members that match the size of the columns results in increased weight and poor handling during construction.

[0006] The present invention has been made in consideration of the above problems, and has an object to provide a column-to-beam joint structure that is easy to install. [Means for solving the problem]

[0007] The present invention for solving the above-mentioned problems provides a column-beam joint structure, in which at least one of the columns and the beams is made of wood material, a column joint member is fixed to the upper end surface of the lower column and the lower end surface of the upper column, the column joint member of the lower column is joined to the column joint member of the upper column, and the end of the beam arranged to the side of the lower column on the column side is joined to the column joint member of the lower column. The part above the lower column Joining with 、 This joint structure is characterized by having a joint portion provided on the side of the column joint member.

[0008] In the present invention, by joining the column joint members fixed to the end faces of the upper and lower columns, it is not necessary to match the size of the column joint members to the size of the columns, and even in large buildings such as buildings, relatively small joint members are sufficient, making construction easier. Also, by joining the beams to the column joint members at the joints, it becomes easier to join the column and beam members.

[0009] The joint is a column joint member of the lower column. The part above the lower column It is preferable that the beam connecting member has a connecting plate protruding laterally from the end of the beam and a beam connecting member fixed to the end of the beam, and that the connecting plate and the beam connecting member are connected together using a fastener. In the present invention, even if the column joint member is smaller than the column, it can be used to join the beam by extending the joint plate to the side of the column. In addition, by using fasteners for the joint, loosening when repeated loads are applied during earthquakes, etc. can be suppressed.

[0010] The beam is, for example, made of wood, and the joint has a beam joining member fixed to the end of the beam, the beam joining member having an L-shaped main body with side panels and a bottom panel, and a vertical panel fixed to the side panels and the bottom panel, and the bottom panel and the vertical panel are inserted into a T-shaped groove provided at the end of the beam. This makes it possible to create details that are resistant to repeated deformation caused by earthquakes, etc., and also makes it easy to join the beams.

[0011] The column joint member of the lower column includes a base plate disposed on the upper end surface of the lower column, and the column joint member of the upper column includes a base plate disposed on the lower end surface of the upper column, and between the base plate on the upper end surface of the lower column and the base plate on the lower end surface of the upper column,It is desirable that a pair of splice plates are arranged to sandwich the column joint member of the lower column and the column joint member of the upper column, and that the pair of splice plates are fastened to the respective column joint members using fasteners. This makes it easier to accommodate errors between column connection components, improving workability. Effect of the Invention

[0012] The present invention can provide a column-beam joint structure that facilitates construction. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 shows a joint structure 10. [Diagram 2] 4A to 4C are diagrams for explaining the fixing of a beam joint member 13 to a beam 2. [Diagram 3] FIG. 2 is a diagram showing a joint structure 10a. [Figure 4] FIG. [Diagram 5] FIG. 13 shows a joint structure 10b'. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0015] Fig. 1 is a diagram showing a joint structure 10 according to an embodiment of the present invention. In Fig. 1, (a) is a diagram showing the joint structure 10 as seen from the side, and (b) is a diagram showing a horizontal cross section taken along line aa in Fig. 1(a). The same applies to Figs. 3 to 5 described below.

[0016] The joint structure 10 joins the columns 1 and the beams 2, and is formed at the joints between the upper and lower columns 1 and the left and right beams 2. The columns 1 and the beams 2 are made of wood. The beams 2 are disposed to the sides of the lower columns 1.

[0017] The joint structure 10 has a lower joint member 11, an upper joint member 12, a beam joint member 13, etc.

[0018] The lower joint member 11 and the upper joint member 12 are column joint members used to join the upper and lower columns 1.

[0019] The lower joint member 11 is a steel member fixed to the upper end surface of the lower column 1, and in this embodiment has a configuration in which an H-shaped steel 112 is provided on the upper surface of a base plate 111.

[0020] The base plate 111 is placed on the upper end surface of the pillar 1, and the upper ends of the anchor bolts 113 embedded in the pillar 1 protrude upward from holes (not shown) in the base plate 111. The base plate 111 is fixed to the upper end surface of the pillar 1 by tightening nuts 114 (double nuts) on these protruding parts.

[0021] The H-shaped steel 112 is placed on the upper surface of the base plate 111 with the member axial direction being the vertical direction, and is fixed to the base plate 111 by welding or the like. A joining plate 115 protruding laterally is fixed to the flange of the H-shaped steel 112 by welding or the like. The joining plate 115 is used to join the beam joining member 13, and is placed with its plate surface being in the vertical direction.

[0022] The beam connection member 13 is a steel member fixed to the end of the beam 2 on the column 1 side (hereinafter simply referred to as "the end of the beam 2"). Fig. 2 is a diagram for explaining the fixing of the beam connection member 13 to the beam 2.

[0023] The beam joint member 13 has a main body 131 and a vertical plate 132. The main body 131 is shaped by bending a plate material into an L shape, and has a side plate 1311 and a bottom plate 1312. The vertical plate 132 is provided in the center of the main body 131 in the width direction, and is fixed to each of the side plate 1311 and the bottom plate 1312 by welding or the like. An upper end of the vertical plate 132 protrudes upward from the main body 131, and a hole 1321 is also provided in the vertical plate 132.

[0024] A T-shaped groove 21 is provided at the end of the beam 2, and the beam connection member 13 is arranged by inserting the bottom plate 1312 and the vertical plate 132 into the groove 21. At this time, the hole 1321 of the vertical plate 132 and the holes 22 formed on both side surfaces of the beam 2 communicate with each other, and the beam connection member 13 is fixed to the end of the beam 2 by passing the drift pin 23 through these holes 22, 1321.

[0025] 1(a), the upper end of the vertical plate 132 protrudes upward from the beam 2, and as shown in FIG. 1(b), a pair of splice plates 14 are arranged to sandwich the upper end of the vertical plate 132 and the above-mentioned connecting plate 115 from both sides. The lower connecting member 11 and the beam connecting member 13 are connected by fastening these splice plates 14 to the upper end of the vertical plate 132 and the connecting plate 115 respectively using fasteners 15 consisting of bolts (high-strength bolts) and nuts.

[0026] As a result, the lower connecting member 11 and the end of the beam 2 are joined using the connecting plate 115 and the beam connecting member 13. The connecting plate 115 and the beam connecting member 13 are disposed on the sides of the lower connecting member 11, and form a joint for joining the lower connecting member 11 and the end of the beam 2.

[0027] The upper connecting member 12 is a steel member fixed to the lower end surface of the upper column 1, and similar to the lower connecting member 11, has a configuration in which an H-shaped steel 122 is provided on the lower surface of a base plate 121. The base plate 121 is fixed to the lower end surface of the column 1 using anchor bolts 123 and nuts 124, similar to the above-mentioned base plate 111.

[0028] As shown in FIG. 1(a), in this embodiment, a pair of splice plates 16 are arranged to sandwich the flange of the H-shaped steel 112 of the lower connecting member 11 and the flange of the H-shaped steel 122 of the upper connecting member 12 from both sides.

[0029] These splice plates 16 are fastened to the flanges of the H-shaped steel 112 of the lower connecting member 11 and the flanges of the H-shaped steel 122 of the upper connecting member 12 using fasteners 17 consisting of bolts (high-strength bolts) and nuts, respectively, thereby joining the flanges of the H-shaped steels 112, 122 of the lower connecting member 11 and the upper connecting member 12. The web of the H-shaped steel 112 of the lower connecting member 11 and the web of the H-shaped steel 122 of the upper connecting member 12 are also joined using splice plates 16 and fasteners 17 in the same manner as above, thereby joining the lower connecting member 11 and the upper connecting member 12.

[0030] As described above, in this embodiment, by joining the lower joining member 11 and the upper joining member 12 fixed to the end faces of the upper and lower columns 1, it is not necessary to match the size of these joining members to the size of the columns 1, and relatively small joining members can be used even in large buildings such as buildings, making construction easier. In addition, by joining the beam 2 to the lower joining member 11 using the joining plate 115 and the beam joining member 13, joining of the column-beam members becomes easy.

[0031] In this embodiment, even if the lower joint member 11 is smaller than the column 1, it can be used to join the beam 2 by the joint plate 115 extended to the side of the lower joint member 11. In addition, joining the joint plate 115 and the beam joint member 13 using the fastener 15 is preferable because it shows flexible behavior close to the assumption when a pre-analysis is performed assuming that the joint is a pin joint. For example, in the pin joint using the plate and drift pin of the conventional technology described above, there is a possibility that rigidity will be generated at the joint. In addition, there is a concern that the drift pin may become loose due to repeated loads acting on it during earthquakes, but such loosening can be suppressed by performing the joint using the fastener 15.

[0032] Moreover, by inserting and fixing the bottom plate 1312 and the vertical plate 132 of the beam joint member 13 into the T-shaped groove 21 of the beam 2, the end of the beam 2 is placed on the bottom plate 1312 and fixed, which provides a detail that is resistant to repeated deformation due to earthquakes, etc. Also, by joining the vertical plate 132 to the above-mentioned joint plate 115, joining of the beam 2 can be easily performed.

[0033] Furthermore, by using the splice plate 16 and fasteners 17 to join the lower joining member 11 and the upper joining member 12 as described above, it becomes easier to absorb errors between the joining members by inserting a filler plate inside the splice plate 16, making the holes for the bolts long, etc., and workability is improved. For example, as a building becomes larger and the dimensions of each component become larger, the variation in the dimensions of the components also increases, so it is particularly suitable to make these joints capable of absorbing errors. The above also applies to the joining of the lower joining member 11 and the beam 2, and errors can be easily absorbed by using the splice plate 14 and fasteners 15.

[0034] However, the present invention is not limited to the above embodiment. For example, the columns 1 and the beams 2 may be provided with fireproof coating (not shown) as necessary, and a decorative material or the like may be provided on the surface of the fireproof coating.

[0035] The shape, configuration, etc. of the lower connection member 11 and the upper connection member 12 are not particularly limited, and may be any one that can connect the upper and lower columns 1. In this embodiment, the connection plate 115 is fixed to the flange of the H-shaped steel 112 and used to connect the beam connection member 13, but it is also possible to omit this connection plate 115 and directly connect the flange of the H-shaped steel 112 and the vertical plate 132a of the beam connection member 13a using the splice plate 14 and fastener 15 as shown in the connection structure 10a of FIG. 3. In this case, the beam connection member 13a forms a connection portion for connecting the lower connection member 11 and the end of the beam 2. In the example of FIG. 3, the upper end of the vertical plate 132a is slightly bent toward the column 1, and this bent portion and the flange of the H-shaped steel 112 are connected using the splice plate 14 and fastener 15.

[0036] In this embodiment, the column 1 and the beam 2 are made of wood, but the column 1 can also be a steel column. In this case, the upper and lower steel columns are joined by a lower connecting member 11 and an upper connecting member 12, and a beam connecting member 13 fixed to the end of the beam 2 is joined to the lower connecting member 11.

[0037] Furthermore, it is also possible to use wood material for the column 1 and steel beams for the beam 2. In this case, as shown in a joint structure 10b in Fig. 4, instead of the joint plate 115 in Fig. 1, a hook-shaped joint plate 115a that bends downward may be fixed to the H-shaped steel 112 of the lower joint member 11, and the downward bent portion of the joint plate 115a and the web 24 of the steel beam 2a may be fastened with a fastener 18 consisting of a bolt (high-strength bolt) and a nut. In this case, the joint plate 115a forms a joint for joining the lower joint member 11 and the end of the steel beam 2a.

[0038] In the example of Fig. 4, the end of the upper flange 25 of the steel beam 2a on the column 1 side is partially cut out so that the bent portion of the connecting plate 115a can be inserted into the position of the web 24. The lower flange 25 is also cut out at the same position on the end on the column 1 side, so that the steel beam 2a can be dropped in from above with the lower column 1 and lower connecting member 11 in place.

[0039] In the example of Fig. 4, a connecting plate 115a is placed on one side of the web 24 of the steel beam 2a and fastened with the fasteners 18 to form a one-side shear connection, but a two-side shear connection detail may be adopted as shown in a connection structure 10b' of Fig. 5. In this example, a connecting plate 115 fixed to the flange of the H-shaped steel 112 and a mounting plate 26 provided on the upper surface of the flange 25 at the top of the steel beam 2a are sandwiched from both sides by a pair of splice plates 14, and these splice plates 14 are fastened to the connecting plate 115 and the mounting plate 26 using fasteners 15. In this case, the connecting plate 115 and the mounting plate 26 form a joint for joining the lower connecting member 11 and the end of the steel beam 2a.

[0040] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above examples. It is clear that a person skilled in the art can come up with various modified or altered examples within the scope of the technical ideas disclosed in this application, and it is understood that these also naturally belong to the technical scope of the present invention. [Explanation of symbols]

[0041] 1: Pillar 2: Beam 2a: Steel beam 10, 10a, 10b, 10b': Joint structure 11: Lower joint member 12: Upper joint member 13, 13a: Beam joint member 14, 16: Connection plate 15, 17, 18: Fasteners 21: Groove 115, 115a: Joint plate 111, 121: Base plate 112, 122: H-shaped steel 131: Main body 132, 132a: vertical plate 1311: Side panel 1312: Bottom plate

Claims

1. A column-beam joint structure, At least one of the columns and beams is made of wood material; The column joint members are fixed to the upper end faces of the lower columns and the lower end faces of the upper columns, The column joint members of the lower column and the upper column are joined together, A joint structure characterized by having a joint provided on the side of a column joint member that joins the end portion of a beam arranged on the side of a lower column on the column side to a portion of the column joint member of the lower column above the lower column.

2. The joint is A joint plate protruding laterally from a portion of the column joint member of the lower column above the lower column; A beam connecting member fixed to the end of the beam; having 2. The joint structure according to claim 1, wherein the joint plate and the beam joint member are joined together using a fastener.

3. The beams are made of wood. The joint includes a beam joint member fixed to the end of the beam, The beam connecting member is An L-shaped main body having side panels and a bottom panel; A vertical plate fixed to the side plate and the bottom plate; having 3. The joint structure according to claim 1, wherein the bottom plate and the vertical plate are inserted into a T-shaped groove provided at the end of the beam.

4. The column joint member of the lower column includes a base plate disposed on the upper end surface of the lower column, The column joint member of the upper column includes a base plate disposed on a lower end surface of the upper column; A joint structure described in any one of claims 1 to 3, characterized in that a pair of splice plates are arranged between a base plate on the upper end surface of the lower column and a base plate on the lower end surface of the upper column, so as to sandwich the column joint member of the lower column and the column joint member of the upper column, and the pair of splice plates are fastened to each of the column joint members using fasteners.

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