JP2023002219A - Bonding structure - Google Patents

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 The present invention relates to a joint structure of a column and a beam.

Pin joints using plates and drift pins are generally used for joints between columns and beams in wooden structures. However, accuracy is required for driving the drift pins, and a large number of drift pins must be driven during erection, resulting in poor workability.

Patent Literature 1 discloses an example of using joint metal fittings of a specific shape at joints between columns and beams as an improved construction method of the framing construction method that has been conventionally used in wooden buildings and the like. In Patent Document 1, upper and lower columns are inserted into a space of a steel joint member (joint hardware) and fastened, and a beam is set on a receiving plate portion of the joint member and fastened.

JP-A-9-165837

Patent Literature 1 is directed to small-scale construction such as a wooden house, and uses a joint member having approximately the same size as the size of the column (the size of the cross section), and inserts the column into the space of the joint member. On the other hand, when similar joint members are applied to large-scale buildings, etc., it is expected that the size of the columns will be even larger. gets worse too.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a joint structure between a column and a beam that facilitates construction.

The present invention for solving the above-mentioned problems is a joint structure of a column and a beam, at least one of the column and the beam is made of a wooden material, and the upper end face of the lower column and the lower end face of the upper column The column joint member is fixed to each, and the column joint member of the lower column and the column joint member of the upper column are joined, and the end of the beam placed on the side of the lower column on the column side and the lower column The joint structure is characterized by having a joint portion provided on the side of the column joint member for joining the column joint member of the column.

In the present invention, by joining the column joint members fixed to the end faces of the upper and lower columns, there is no need to match the size of the column joint member to the size of the column, and even large-scale buildings such as buildings can be relatively A small joint member is sufficient, and construction is easy. In addition, as for the beam, by joining the column joint member with the joint portion, the joint of each member of the column and beam becomes easy.

The joint portion has a joint plate protruding laterally from the column joint member of the lower column and a beam joint member fixed to the end portion of the beam, and the joint plate and the beam joint member are fixed to the end portion of the beam. Preferably, they are joined using fasteners.
In the present invention, even a column joint member that is smaller in size than the column can be used for jointing beams by means of joint plates extended to the sides thereof. In addition, by performing joining using fasteners, it is possible to suppress loosening when repeated loads are applied during an earthquake or the like.

The beam is made of, for example, a wooden material, and the joint portion has a beam joint member fixed to the end portion of the beam. The beam joint member includes an L-shaped main body having side plates and a bottom plate, It has a side plate and a vertical plate fixed to the bottom plate, the bottom plate and the vertical plate being inserted into a T-shaped groove provided in the end of the beam.
As a result, the details can be made resistant to repeated deformation due to earthquakes, etc., and the beams can be easily joined.

A pair of splice plates are arranged 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 the respective column joint members using fasteners. is desirable.
This makes it easier to absorb errors between the column joint members, improving workability.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a joint structure between a column and a beam that facilitates construction.

The figure which shows the joining structure 10. FIG. FIG. 5 is a diagram for explaining fixing of the beam joint member 13 to the beam 2; The figure which shows the joining structure 10a. The figure which shows the joining structure 10b. The figure which shows joining structure 10b'.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing a joint structure 10 according to an embodiment of the invention. In FIG. 1, (a) is a side view of the joining structure 10, and (b) is a horizontal cross-sectional view taken along line aa in FIG. 1(a). The above also applies to FIGS. 3 to 5, which will be described later.

The joint structure 10 joins the column 1 and the beam 2, and is formed at the joint portion between the upper and lower columns 1 and the left and right beams 2. As shown in FIG. The pillar 1 and the beam 2 are made of wooden material. The beam 2 is arranged on the side of the lower pillar 1 .

The joint structure 10 includes a lower joint member 11, an upper joint member 12, a beam joint member 13, and the like.

The lower joint member 11 and the upper joint member 12 are column joint members used for joining the columns 1 on the upper and lower stages.

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

The base plate 111 is arranged on the upper end surface of the column 1 , and the upper ends of the anchor bolts 113 embedded in the column 1 protrude upward through holes (not shown) of the base plate 111 . The base plate 111 is fixed to the upper end surface of the pillar 1 by tightening a nut 114 (double nut) to this projecting portion.

The H-section steel 112 is arranged on the upper surface of the base plate 111 with the member axial direction as the vertical direction, and is fixed to the base plate 111 by welding or the like. A joint plate 115 protruding sideways is fixed to the flange of the H-section steel 112 by welding or the like. The joining plate 115 is used for joining the beam joining members 13, and is arranged with its plate surface in the vertical direction.

The beam joint 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 explaining how the beam joint member 13 is fixed to the beam 2. As shown in FIG.

The beam joint member 13 has a main body 131 and a vertical plate 132 . The main body 131 is formed 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. The upper end of the vertical plate 132 protrudes upward from the main body 131 , and the vertical plate 132 is also provided with holes 1321 .

A T-shaped groove 21 is provided at the end of the beam 2 , and the beam joint member 13 is arranged by inserting the bottom plate 1312 and the vertical plate 132 into the groove 21 . At this time, the holes 1321 of the vertical plate 132 and the holes 22 formed on both side surfaces of the beam 2 communicate with each other, and by passing the drift pins 23 through these holes 22 and 1321, the beam connecting member 13 is attached to the beam 2. Fixed to the ends.

As shown in FIG. 1(a), the upper end of the vertical plate 132 protrudes upward from the beam 2, and as shown in FIG. They are arranged so as to sandwich the plate 115 from both sides. These splice plates 14 are fastened to the upper end of the vertical plate 132 and the joint plate 115 using bolts (high-strength bolts) and nuts 15, respectively, so that the lower joint member 11 and the beam joint member 13 are spliced.

As a result, the lower joint member 11 and the end of the beam 2 are joined using the joint plate 115 and the beam joint member 13 . The joint plate 115 and the beam joint member 13 are arranged on the side of the lower joint member 11 and constitute a joint portion for joining the end portions of the lower joint member 11 and the beam 2 .

The upper joint member 12 is a steel member fixed to the lower end surface of the upper column 1 , and has a configuration in which an H-shaped steel 122 is provided on the lower surface of the base plate 121 , similar to the lower joint member 11 . The base plate 121 is fixed to the lower end surface of the pillar 1 using anchor bolts 123 and nuts 124 in the same manner as the base plate 111 described above.

As shown in FIG. 1( a ), in this embodiment, a pair of splice plates are arranged so as to sandwich the flange of the H-section steel 112 of the lower joint member 11 and the flange of the H-section steel 122 of the upper joint member 12 from both sides. 16 are placed.

These splice plates 16 are fastened to the flanges of the H-section steel 112 of the lower joint member 11 and the flanges of the H-section steel 122 of the upper joint member 12, respectively, using fasteners 17 consisting of bolts (high-strength bolts) and nuts. By doing so, the flanges of the H-section steels 112 and 122 of the lower joining member 11 and the upper joining member 12 are joined. The web of the H-section steel 112 of the lower joint member 11 and the web of the H-section steel 122 of the upper joint member 12 are also joined using the splice plate 16 and the fastener 17 in the same manner as described above, thereby forming the lower joint member 11 and the upper joint member 12 are joined.

As described above, in this embodiment, by joining the lower joint member 11 and the upper joint member 12 fixed to the end faces of the upper and lower columns 1, it is not necessary to match the size of these joint members to the size of the column 1. Therefore, even in a large-scale building such as a building, a relatively small joining member is sufficient, and the construction is easy. Also, as for the beam 2, by joining the lower joining member 11 using the joining plate 115 and the beam joining member 13, joining of each member of the column and beam becomes easy.

Further, in this embodiment, even the lower joint member 11 that is smaller in size than the column 1 can be used for jointing the beam 2 by the joint plate 115 extended to the side thereof. Also, the joint between the joint plate 115 and the beam joint member 13 using the fastener 15 exhibits a flexible behavior close to that assumption when a pre-analysis or the like is performed assuming that the joint is a pin joint. Points are also preferred. For example, the prior art plate-to-drift pin pin joint described above may result in stiffness at the joint. Also, during an earthquake or the like, repeated loads may act on the drift pins, causing them to loosen.

Also, the beam joint member 13 is fixed by inserting the bottom plate 1312 and the vertical plate 132 into the T-shaped groove 21 of the beam 2 so that the end of the beam 2 is put on the bottom plate 1312 and fixed. , the detail is resistant to repeated deformation due to earthquakes, etc. Also, by joining the vertical plate 132 to the joint plate 115, the beam 2 can be easily joined.

Also, the lower joint member 11 and the upper joint member 12 are joined by using the splice plate 16 and the fastener 17 as described above. By making the holes for the connection to be elongated holes, it becomes easier to absorb errors between the joining members, and workability is improved. For example, as the size of the building increases and the dimensions of each member also increase, the variation in the dimensions of the members also increases. The above also applies to the joining of the lower joining member 11 and the beam 2, and the error can be easily absorbed by using the splicing plate 14 and the fastener 15. FIG.

However, the invention is not limited to the above embodiments. For example, the pillars 1 and beams 2 may be provided with a fireproof coating (not shown) as necessary, and a decorative material or the like may be provided on the surface thereof.

The shape, configuration, etc. of the lower joint member 11 and the upper joint member 12 are not particularly limited as long as they can join the pillars 1 on the upper and lower stages. In this embodiment, the joint plate 115 is fixed to the flange of the H-shaped steel 112 and used for joining the beam joint member 13. However, the joint plate 115 is omitted, and as shown in the joint structure 10a of FIG. It is also possible to directly join the flange of the H-section steel 112 and the vertical plate 132a of the beam joining member 13a using the splicing plate 14 and the fastener 15 described above. In this case, the beam joint member 13a constitutes a joint for joining the lower joint member 11 and the end of the beam 2 together. 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 joined using the splicing plate 14 and the fastener 15.

In this embodiment, the pillar 1 and the beam 2 are made of wood material, but it is also possible to make the pillar 1 a steel frame column. In addition to joining, the beam joining member 13 fixed to the end of the beam 2 may be joined to the lower joining member 11 .

Furthermore, it is also possible to use a wooden material for the pillar 1 and a steel beam for the beam 2 . In this case, as shown in the joint structure 10b of FIG. 4, instead of the joint plate 115 of FIG. The downward bent portion of 115a and the web 24 of the steel beam 2a may be fastened using fasteners 18 consisting of bolts (high-strength bolts) and nuts. In this case, the joint plate 115a constitutes a joint for joining the lower joint member 11 and the end of the steel beam 2a.

In the example of FIG. 4, the end of the flange 25 on the top of the steel frame beam 2a on the side of the column 1 is partially cut off so that the bent portion of the joint plate 115a can be inserted into the position of the web 24. As shown in FIG. In addition, the lower flange 25 is also notched at the same position at the end on the column 1 side, so that the steel beam 2a can be dropped from above and arranged in a state where the lower column 1 and the lower joint member 11 are installed. It's like

In the example of FIG. 4, the joint plate 115a is superimposed on one side of the web 24 of the steel beam 2a and fastened with the fastener 18 to form a one-sided shear joint. A double shear bond detail may be employed. In this example, a joint plate 115 fixed to the flange of the H-section steel 112 and a mounting plate 26 provided on the upper surface of the flange 25 on the upper part of the steel beam 2a are sandwiched from both sides by a pair of splice plates 14, The contact plate 14 is fastened to each of the joining plate 115 and the mounting plate 26 using fasteners 15 . In this case, the joint plate 115 and the mounting plate 26 constitute a joint portion for joining the lower joint member 11 and the end portion of the steel beam 2a.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to such examples. It is obvious that a person skilled in the art can conceive of various modifications or modifications within the scope of the technical ideas disclosed in the present application, and these also belong to the technical scope of the present invention. Understood.

1: Column 2: Beam 2a: Steel beams 10, 10a, 10b, 10b': Joint structure 11: Lower joint member 12: Upper joint member 13, 13a: Beam joint member 14, 16: Splice plate 15, 17, 18 : Fastener 21: Groove 115, 115a: Joining plate 111, 121: Base plate 112, 122: H-shaped steel 131: Main body 132, 132a: Vertical plate 1311: Side plate 1312: Bottom plate

Claims (4)

A joint structure of a column and a beam,
At least one of the pillars and beams is made of wood,
Column joint members are 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 and the column joint member of the upper column are joined,
In order to join the pillar-side end of the beam placed on the side of the lower pillar and the pillar joint member of the lower tier, it has a joint provided on the side of the pillar joint member. Characteristic joint structure. The junction is
a joining plate protruding laterally from the column joining member of the lower column;
a beam joint member secured to the end of the beam;
has
2. The joining structure according to claim 1, wherein said joining plate and said beam joining member are joined using fasteners. The beams are made of wood,
the joint comprises a beam joint member secured to the end of the beam;
The beam joint member is
an L-shaped main body having side plates and a bottom plate;
a vertical plate fixed to the side plate and the bottom plate;
has
3. The joint structure according to claim 1, wherein said bottom plate and said vertical plate are inserted into a T-shaped groove provided at said end of said beam. A pair of splice plates are arranged 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 the respective column joint members using fasteners. The joint structure according to any one of claims 1 to 3, characterized by:

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