JP7214025B1 - Joint structure between columns and horizontal members - Google Patents

Abstract

A connection part between a column and a beam having a rectangular cross section, and a combination of the connecting beam and the support of the load from the upper floor can be supported by the capital of the column. A beam (15) placed on and connected to a capital (17) of a column (13), the column (13) is a flat column, the direction of the long side is orthogonal to the longitudinal direction of the beam (15), and the upper end surface (21) of the capital (17) A vertical plate 33 which is connected to the beam 15 in a state in which one short side protrudes from one side surface 23 of the beam 15 and a part of the upper end surface 21 is exposed, and is fixed to the side surface 23 of the beam 15 with screws 41. and a horizontal plate 35 that is connected to the lower edge of the vertical plate 33 and is flush with the lower surface 19 of the beam 15 and abuts on a part of the upper end surface 21 . The vertical plate 33 and the horizontal plate 35 are connected by a pair of rib plates 37 to form a rectangular box shape, and the hole through which the fastening member 41 penetrates is located at the center of the vertical plate 33. The joining members 31 are arranged in a pair on the left and right near the rib plates 37 on the left and right side edges avoiding the . [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a joint structure between a column and a horizontal member in a wooden building.

In the wooden frame construction method, to join a pillar and a beam, which is a horizontal member, a beam is bridged between the pillars, and both ends of the beam are joined to the opposite sides of the pillar via joints. and a method in which a beam is placed on the upper end surface of the pillar and spanned over, and the upper end surface of the pillar and the lower surface of the beam are joined via joints. In addition, the pillars are erected on the base, which is a horizontal member, and these are also joined via joints. The joints between these pillars and horizontal members cannot obtain the strength to maintain the joint state by joining only the joints. However, it is reinforced, and a structure using a member such as a penetrating metal as in Patent Documents 2, 3, and 4 is adopted.
However, these structures are structures that suppress the unraveling of the joints, and although they are effective in terms of earthquake resistance and wind resistance, the weight of buildings has increased in recent years. Due to the increased weight, each column that receives the load has a problem of sinking into the foundation, and it cannot be said that such a problem is addressed. To solve this problem, a metal plate larger than the area of the bottom surface of the column is interposed between the lower end of the column (column base) and the top surface of the base to change the load from the column base to a wider area. Patent Document 5 or the like discloses a structure for preventing the pillars from sinking into the base.

However, in the joint structure between the pillar and the horizontal member described above, when the beam is used as the horizontal member, there is a configuration in which the beam is placed on the stigma of the pillar and joined to the joint of the stigma and the lower surface of the beam. However, even at this junction, the pillars may become embedded in the beams. In other words, as mentioned above, the weight of the building itself is increasing, and as a result of age deterioration, the load on the upper floor is applied to the capital of the column via the beam, and the load on the column with a smaller area than the lower surface of the beam causes There is a risk that the column head will sink into the bottom surface of the beam and the bottom surface of the beam will be deformed. Although it is possible to apply the technology described in each of the above-mentioned patent documents to prevent embedding in such a joint portion between the column head and the beam, each of them reinforces the joint between the column base and the base. It is considered as metal fittings and members. In other words, in normal construction, these metal fittings and members can be lifted on the foundation near the ground, but they are not considered for installation on beams and column capitals high above the head, and the metal fittings themselves are heavy. It has the disadvantage that it is difficult to lift, support, screw and otherwise handle easily, and handling is dangerous.

On the other hand, there is a method of enlarging the cross-sectional area of the pillar in order to suppress the sinking into the above-mentioned horizontal members such as the foundation. This method uses flat pillars, which are rectangular cross-section pillars whose short sides are the same width as the horizontal members such as the foundation, and assembles the long sides of these flat pillars along the longitudinal direction of the horizontal members. , is to be constructed. Compared to columns with square cross-sections, rectangular cross-sections increase the supporting area, i.e., the area that receives the load from the upper story on the end face of the column head and column base. In addition, it has the effect of suppressing the sagging described above. By using such flat pillars, it is possible to adopt a structure in which a part of the second floor overhangs the first floor, a so-called overhang structure. The pillars on the lower floors, which are directly below the pillars, are supported by flat pillars with rectangular cross sections, which have a large cross-sectional area.

Japanese Utility Model Laid-Open No. 57-176502 JP-A-2002-235373 JP 2006-241745 A JP 2015-161060 A JP-A-08-260569

However, in the configuration using the above-mentioned flat columns, each dimension around the column, which would fit in a normal column, is flat and has a rectangular cross section, so it protrudes in the long side direction along the beam. Thus, for example, the flat columns protrude from the walls, the walls protrude from their normal positions, or the positions of the walls are adjusted to match the flat columns. Therefore, in some cases, the direction of the flat column is changed by 90 degrees, that is, the direction of the long side of the rectangular cross section is perpendicular to the longitudinal direction of the beam and connected to the beam. However, when the direction of the flat column is changed, the upper end surface of the flat column protrudes from the beam.
In addition, the beams are connected to bridge beams that are bridged between beams that are spaced apart from each other and adjacent to each other. This bridging beam is located above the pillar, is perpendicular to the side surface of the beam, and is connected to the side surface by a joint. The bridging beam has a beam so that the end connected to the beam is placed on the upper end surface of the projecting portion of the flat column.
In other words, the beams and ends of the bridge beams are connected to columns (flat columns), and the columns (flat columns) receive the load of the upper floor. This is also for the purpose of preventing the upper end surface of the column (flat column) from sinking into the beam due to the difference in the area where the beam faces the upper end surface of the column.
However, the beam thickness of the bridging beam does not normally need to be the same as the beam with a larger beam thickness, and it is excessive for such a beam due to the beam having a large beam thickness as described above. There was a request to change the composition of the bridge beam.
In addition, by using such beams with a large beam height, the spaces between the flat columns and between the beams and the foundations, along with the above-mentioned hanging beams, will be different from others, and the length of the braces and the like will be different. Angle, interference between bolts and pillars of hold-down hardware, cutting of heat insulating material, fitting of fittings such as sashes and windows, etc., other components and dimensions between pillars and beams and foundations etc. is changed, and there is a problem that the construction becomes complicated.

The present invention has been made in view of the above situation, and its object is, when using a flat column with a rectangular cross section, the connection part between the column and the beam, and the combination with the bridge beam, so that the light from the upper floor To provide a joint structure between a column and a horizontal member having a structure capable of receiving load support at the capital of the column.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
A joint structure between a column and a horizontal member according to claim 1 of the present invention is a joint structure between a column 13 and a horizontal member mounted on a capital 17 of the column 13 and connected to the column 13. ,
The horizontal member is a beam 15,
The pillar 13 is a flat pillar with a rectangular horizontal cross section. The direction of the long side of the horizontal cross section is orthogonal to the longitudinal direction of the beam 15. 15 is connected to the beam 15 in a state in which a part of the upper end surface 21 protrudes from one side surface 23 of the beam 15 and is exposed,
A vertical plate 33 fixed to one side surface 23 of the beam 15 by a fastening member 41, and a vertical plate 33 connected to the lower edge of the vertical plate 33 and being flush with the lower surface 19 of the beam 15 and forming a part of the upper end surface 21. The vertical plate 33 and the horizontal plate 35 are formed so that the width length of the vertical plate 33 and the horizontal plate 35 is set equal to the width length of the short side of the column 13, and the vertical plate 33 and the horizontal plate 35 are formed. is formed into a rectangular box shape whose side edges are connected by a pair of rib plates 37, and holes drilled in the vertical plate 33 and through which the fastening member 41 penetrates are formed so as to avoid the center of the vertical plate 33 and the left and right side edges. The joint members 31 are arranged in pairs on the left and right sides of the rib plate 37 .

In this joint structure of the column and the horizontal member, the column 13 connected to the beam 15 is a flat column, and the direction of the long side of the horizontal cross section of the flat column is perpendicular to the longitudinal direction of the beam 15. It is said that A top end surface 21 of the capital 17 of the column 13 protrudes from one side surface 23 of the beam 15 , and a part of the top end surface 21 is exposed upward and connected to the beam 15 .
The joint member 31 has a vertical plate 33 fixed to one side surface 23 of the beam 15 with a fastening member 41 such as a screw. are arranged to increase the area of Then, it is placed on the upper end surface 21 of the capital 17 together with the lower surface 19 of the beam 15 , and the load of the upper floor can be transmitted to the column 13 by the joint member 31 and the beam 15 . As a result, when the bridging beam 45 is further connected to the beam 15, the bridging beam 45 can be connected to the side surface 23 above the joining member 31 without making the beam thickness of the bridging beam 45 equal to that of the beam 15. is not required to be placed on the upper end surface 21 of the pillar 13, and the construction of the bridge beam 45 can be designed and constructed with a small beam height, and the material cost can be reduced. In addition, the mounting area of the beam 15 side with respect to the capital 17 of the column 13 is increased, and sinking into the lower surface 19 of the beam 15 is suppressed, so that aging deformation and the like can be suppressed.
In addition, by setting the position of the hole through which the fastening member 41 penetrates to a position that avoids the center, it is possible to prevent interference with the hardware that reinforces the joint that joins the beam 15 and the column 13 .
Furthermore, the structure is simple and the weight can be reduced, which improves workability and facilitates handling. The work can be done easily even at the overhead position, and a reinforcing structure can be obtained at the connecting portion between the column capital 17 and the beam 15 .

The joint structure between the pillar and the horizontal member according to claim 2 of the present invention is the joint structure between the pillar and the horizontal member according to claim 1,
A bridging beam 45 having a beam height smaller than that of the beam 15 is further connected to the side surface 23 of the beam 15 above the vertical plate 33 of the joining member 31 so as to be orthogonal to the beam 15 . characterized by

In this joint structure between the column and the horizontal member, a joint member 31 is fixed to one side surface 23 of the beam 15 above the capital 17 of the column 13 . An end portion of a bridging beam 45 connected to the beam 15 is positioned on the side surface 23 of the beam 15 above the vertical plate 33 of the joint member 31 . That is, even if the beam 45 does not have the same beam height as the beam 15, the load of the beam 15 is transmitted to the column 13 by the joint member 31. It would be nice if there was a way to do it. For this reason, the bridge beams 45 do not have to be designed excessively and are not connected.

The joint structure between the pillar and the horizontal member according to claim 3 of the present invention is the joint structure between the pillar and the horizontal member according to claim 1 or 2,
The horizontal plate 35 of the joint member 31 is characterized by having an elongated hole having a major axis in the direction along the lower edge of connection with the vertical plate 33 .

In this joint structure between the column and the horizontal member, when other members penetrating the horizontal plate 35, such as the shaft 55 of the hold-down hardware 51, are provided across the column 13 and the horizontal member, the hold-down The shaft part 55 of the hardware 51 can be penetrated, and the joint member 31 can support the load of the upper floor, and the hold-down hardware 51 can reinforce the connection state of the beam 15 and the column 13 without interfering with each other. becomes.

A joint structure between a column and a horizontal member according to claim 4 of the present invention is a joint structure between a column 13 and a horizontal member placed on a capital 17 of the column 13 and connected to the column 13. ,
The horizontal members are beams 15, and the pillars 13 are composed of square cross-section pillars 13 whose side length is the width of the beam 15,
In a state where the column 13 and the beam 15 are connected, a base portion 53 fixed to the side surface of the column 13 and a shaft portion 55 fixed to the base portion 53 and penetrating the beam 15 are provided. a hold-down hardware 51 that reinforces and connects the connection state with the pillar 13;
a vertical plate 33 fixed to the side surface of the column 13 by a fastening member 41; The width of the vertical plate 33 and the horizontal plate 35 is set equal to the width of the side surface of the column 13, and the vertical plate 33 and the horizontal plate 35 are formed by a pair of ribs. The side edges of the vertical plate 33 are connected to each other by a plate 37 to form a rectangular box shape. The horizontal plate 35 has a long hole with a major diameter along the upper edge of the connection with the vertical plate 33. 31 and
with
The vertical plate 33 of the joining member 31 is fixed to the side surface 27 of the column 13 along which the base 53 of the hold-down hardware 51 is fixed and the shaft portion 55 is along, and the shaft portion 55 extends into the long hole 43 of the horizontal plate 35. It is characterized by penetrating

In this joint structure between the column and the horizontal member, the vertical plate 33 is fixed to the side surface of the column 13 by a fastening member 41 such as a screw, so that the horizontal plate 35 is flush with the upper surface of the column 13. That is, it is arranged so as to increase the area of the upper end face 21 of the column 13 . The beam 15 is placed on the upper end surface 21 of the capital 17 of the column 13 and the horizontal plate 35, and the joint member 31 and the upper end surface 21 of the column can support the load of the upper floor. This prevents the column head 17 of the column 13 from sinking into the beam 15, thereby suppressing aging deformation and the like.
In addition, by avoiding the center of the hole through which the fastening member 41 penetrates, it is possible to prevent interference with the hardware that reinforces the joint that joins the beam 15 and the column 13, and also makes it possible to prevent interference with the hardware. Through the hole, the shaft portion 55 of the hold-down metal fitting 51 that penetrates the horizontal plate 35 can pass through. It is possible to reinforce the connection state of
Furthermore, it is possible to achieve weight reduction with a simple structure, thereby improving workability and making it easy to handle. The work can be done easily even at a certain overhead position, and a reinforcing structure can be obtained at the connecting portion between the capital 17 and the beam 15 .

According to the joint structure of the column and the horizontal member according to claim 1 of the present invention, the lower surface of the beam and the horizontal plate of the joint member are flush with each other by the joint member fixed to the side surface of the beam. Since the area of the lower surface of the beam is increased and the beam is placed on the upper end surface of the column, the load of the upper floor can be transmitted to the column by the joint member and the beam. As a result, when a bridging beam is further connected to the beam, the bridging beam can be connected to the upper side surface of the joint member without making the beam thickness of the bridging beam equal to that of the beam. It is not necessary to have such a structure, and the structure of the bridge beam can be designed and constructed with a small beam thickness, and the cost of materials can be reduced. In addition, it is possible to suppress the stigma of the pillar from sinking into the lower surface of the beam, thereby suppressing aging deformation and the like.
In addition, by avoiding the center of the hole through which the fastening member penetrates, it is possible to prevent interference with the hardware that reinforces the joint that joins the beam and the column.
Furthermore, it is possible to achieve weight reduction with a simple structure, which improves workability and makes it easy to handle. The work can be done easily even in an overhead position, and a reinforcing structure can be obtained at the connecting portion between the column capital portion and the beam.

According to the joint structure of the column and the horizontal member according to claim 2 of the present invention, the joint member is fixed to the side surface of the beam above the stigma of the column, and the joint member is fixed above the vertical plate of the joint member. A span beam is connected to the upper floor, the load of the upper floor is transmitted to the column by the beam and the joint member, and the span beam can be connected only to the beam. For this reason, it is possible to configure the bridge beam with a size that contacts the top end face of the column, that is, the beam height is excessively designed so that it is not connected. will also become

According to the joint structure between the column and the horizontal member according to claim 3 of the present invention, another member that penetrates the horizontal plate, such as a shaft of a hold-down metal, is provided across the column and the horizontal member. In this case, the shaft part of this hold-down metal can be penetrated, preventing mutual interference between the joint member and the hold-down metal, the joint member supports the load of the upper floor, and the hold-down metal connects the beam and the column. It becomes possible to reinforce the state individually. In addition, since the hole is elongated, it is possible to deal with an arrangement in which the shaft portion of the hold-down hardware does not pass through the center.

According to the joint structure of the column and the horizontal member according to claim 4 of the present invention, the upper end surface of the column and the horizontal plate of the joint member are flush with each other by the joint member fixed to the side surface of the column. As a result, the area of the upper end face of the pillar is increased and the beam is placed, so that the joint member and the pillar can support the load of the upper floor. This prevents the stigma of the pillar from sinking into the beam, making it possible to suppress aging deformation.
In addition, by avoiding the center of the hole through which the fastening member passes, it is possible to prevent interference with the hardware that reinforces the joint that joins the beam and the column, and the long hole , the axis of the hold-down hardware that penetrates the horizontal plate can be penetrated, and the joint members can support the load of the upper floor, and the hold-down hardware can reinforce the connection state of the beams and columns without interfering with each other. becomes.
Furthermore, it is possible to achieve weight reduction with a simple structure, which improves workability and makes it easy to handle. The work can be done easily even in an overhead position, and a reinforcing structure can be obtained at the connecting portion between the column capital portion and the beam.

(a) is a perspective view showing the skeleton of a wooden frame structure building having a joint structure between columns and horizontal members according to the present embodiment, and (b) is a perspective view enlarging a part of (a). be. It is the principal part perspective view which expanded the joining structure of the column and horizontal member which concern on this embodiment. FIG. 4 is a perspective view of a joint member used in the joint structure between a column and a horizontal member according to the embodiment; It is an exploded perspective view of the joining structure of the column and horizontal member which concern on this embodiment. It is a perspective view which shows the joint structure of the column and horizontal member of other embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 : (a) is a perspective view showing the skeleton of a wooden frame structure building equipped with a joint structure of columns and horizontal members according to the present embodiment, and (b) is an enlarged part of (a). FIG. 2 is an enlarged perspective view of the main part of the joint structure between the pillar and the horizontal member according to the present embodiment.
The joint structure between the column and the horizontal member according to the present embodiment is the column 13 and the horizontal member 15 of the wooden frame structure of the wooden building 11, and the column head 17 which is the upper end of the column and the column head 17 which is placed thereon. It is a structure for joining with a beam 15 as a horizontal member.
The pillar 13 is a flat pillar with a rectangular horizontal cross section. In this embodiment, the dimensions of this rectangular shape are such that the short side is 105 mm and the long side is 120 mm or 150 mm. A stigma 17, which is the upper end of the pillar 13, is formed with a tenon, which is one of the joints (not shown).

The beam 15, which is a horizontal member, has a beam length, which is a height dimension, longer than its width, and has a vertical cross-sectional shape of a vertically long rectangle. In this embodiment, the width of the beam 15 is set according to the length of the short side of the pillar 13, and is a vertically long rectangle with a beam width of 105 mm and a beam height of 180 mm, 210 mm, or 240 mm. . The lower surface 19 of the beam 15 is formed with a mortise that is the other joint for joining with the capital 17 .

In this embodiment, in the framework of the building as shown in FIG. and the beam 15 portion.
The column 13 and the beam 15 are joined so that the direction of the long side of the horizontal cross section of the column 13 is perpendicular to the longitudinal direction of the beam 15 . In the joined state, one short side of the upper end surface 21 of the column head 17 protrudes from one side surface 23 of the beam 15, and the other short side of the upper end surface 21 is along the other side surface 25 of the beam 15, and this The other side surface 25 and the side surface 27, which is the other short side of the column 13, are flush with each other. That is, one short side of the upper end surface 21 of the column 13 faces upward with respect to the lower surface 19 of the beam 15 , and the other short side faces the lower surface 19 of the beam 15 .

FIG. 3 is a perspective view of a joint member 31 used in a joint structure between a column and a horizontal member according to this embodiment.
In this embodiment, the joint member 31 is made of a metal plate such as a galvanized steel plate SGH400 having a thickness of 3.2 mm, and includes a vertical plate 33 , a horizontal plate 35 and a rib plate 37 .
The vertical plate 33 and the horizontal plate 35 are set to have the same width as the short side of the column 13, namely 105 mm. The plate is obtained by bending, and the length from the edge portion, which is the bent portion, to each tip edge portion, which is the outer edge of each plate, is set to 60 mm.
The rib plate 37 connects the left and right side edges of the vertical plate 33 and the horizontal plate 35 . , and formed into a rectangular box shape with two open sides.
The joint member 31 of the present embodiment is made of a plate material with a thickness of 3.2 mm, so that the weight can be suppressed to about 340 g.

A plurality of holes 39 are drilled in the vertical plate 33 of the joint member 31 . Each hole 39 has a hole diameter through which a screw 41, which is a fastening member, passes. In the present embodiment, these holes 39 are positioned to avoid the center of the vertical plate 33 and are positioned closer to the left and right rib plates 37 . Each hole 39 is located in a line symmetrical position on the left and right around the center line (one-dot chain line C) shown in FIG. , four holes 39 of diameter.

A long hole 43 is bored in the horizontal plate 35 . The elongated hole 43 is an elongated hole whose minor diameter is the hole diameter through which the shaft of a hold-down hardware (to be described later) can pass.

In the joint member 31 constructed in this way, the vertical plate 33 is fixed to the side surface 23 of the beam 15 above the upper end surface 21 of the column 13 at the connecting portion between the column 13 and the beam 15 . That is, it is fixed to the side surface 23 of the beam 15 with screws 41 that are fastening members. According to this fixed position, the horizontal plate 35 is placed on the upper end surface 21 of the column 13 connected to the beam 15 , and the horizontal plate 35 is flush with the lower surface 19 of the beam 15 . In other words, the area of the lower surface 19 of the beam 15 is increased, and the entire upper end surface 21 of the column 13 can receive a load above the beam 15 . Note that the horizontal plate 35 and the upper end surface 21 of the column 13 are not fixed with screws or the like.

The positions where the screws 41 are driven into the side surface 23 of the beam 15 are the positions of the holes 39 of the vertical plate 33. The screw 41 is inserted at a position avoiding the tenon which is the joint for connection with 15 . By shifting the positions of the screws 41 to the left and right from the center, the joint members 31 are configured as part of the beam 15 and are not fixed to the pillar 13 . As a result, the beam 15 is not fixed to the column 13 via the screw 41 and the joining member 31 , that is, the load above the beam 15 is supported by the upper end surface 21 of the column 13 .

In addition, by fixing the vertical plate 33 and the horizontal plate 35 at their side edges with a pair of rib plates 37, the rigidity is improved, and compared to a simple L-shaped hardware member, the upper floor through the beam 15 can be installed. It is possible to support the load of the upper floor without being deformed greatly even if the load is received from the upper floor.

FIG. 4 is an exploded perspective view of a joint structure between a column and a horizontal member according to this embodiment.
In addition, in the joint structure between the beam 15 and the column 13 provided with such a joint member 31 , it is possible to adopt a configuration in which the beam 15 is connected to the bridge beam 45 .
A bridging beam 45 is bridged between the beams 15 and other beams, and both ends of the bridging beams 45 are connected to the side surfaces 23 of the beams 15 via joints.
By providing the joint member 31 described above, the bridge beam 45 is connected to the side surface 23 of the beam 15 above the joint member 31 . The bridging beam 45 is set to have a beam height smaller than that of the beam 15, and the beam height placed on the upper end surface 21 of the pillar 13 is unnecessary. In this embodiment, the vertical cross section of the bridge beam 45 is a square with a side of 105 mm.

According to the joint structure of the column 13 and the horizontal member 15 configured in this way, the beam 15 is placed on the capital 17 of the column 13, and the upper end surface 21 of the column 13 and the lower surface 19 of the beam 15 are formed. The beams 15 are connected to each other at joints, and a joint member 31 is fixed to the side surface 23 of the beam 15 at this connection portion. The joint member 31 is fixed by a vertical plate 33 abutting along the side surface 23 of the beam 15 and by driving a screw 41 through each hole 39 . The fixed joint member 31 is flush with the lower surface 19 of the beam 15 so that the horizontal plate 35 extends the lower surface 19 of the beam 15 . The horizontal plate 35 of the joint member 31 is placed on the upper end surface 21 of the column 13 together with the lower surface 19 of the beam 15 . That is, the upper end surface 21 of the column 13 has the lower surface 19 of the beam 15 and the horizontal plate 35 of the joint member 31 placed thereon, and the column 13 is located above the beam 15 in the entire area of its upper end surface 21 . will be subjected to a load of This also suppresses the stigma 17 of the pillar 13 from sinking toward the beam lower surface 19 .

Also, the bridge beam 45 connected to the beam 15 has a beam height smaller than the beam height of the beam 15 . 31 is provided, and the beam 15 is placed on the pillar 13 together with the joint member 31 to transmit the load. no longer need to be The beam height changes in structural calculation rank every 30 mm, but by setting the joint member 31 to 60 mm as described above, it is possible to lower the bridge beam 45 by two ranks. That is, according to the joint structure of the present invention, the rank of the bridging beam 45 can be lowered by two by providing the joint member 31, and the cost as a member can be greatly reduced.

FIG. 5 is a perspective view showing a joint structure between a column and a horizontal member according to another embodiment.
As for the joint structure between the column 13 and the horizontal member 15, even in the joint structure using the hold-down hardware 51, it is possible to use the joint member 31 similar to that described above.
In this embodiment, as shown in FIG. 5, a joint member 31 is arranged and used at the inner corner portion between the column head 17 and the beam lower surface 19 at the connection portion between the column 13 and the beam 15 . The joint member 31 is used by reversing the above-described joint member 31 , that is, by positioning the horizontal plate 35 on the upper edge side of the vertical plate 33 .

The hold-down hardware 51 has a blade portion 53 as a base fixed to the side surface 27 of the column 13 , and a shaft portion 55 extending vertically upward from the blade portion 53 penetrates the beam 15 to connect the column 13 and the beam 15 . are reinforced. The joining member 31 is fixed to the side surface 27 of the column 13 with screws 41 . The shaft portion 55 of the hold-down hardware 51 passes through the long hole 43 formed in the horizontal plate 35 of the joint member 31 .

According to this joint structure, the horizontal plate 35 of the joint member 31 is flush with the upper end surface 21 of the column 13, that is, the upper end surface 21 of the column 13 is increased. As a result, the column 13 has an increased area for supporting the beam 15, and the upper end surface 21 of the column 13 and the horizontal plate 35 of the joint member 31 receive the load of the upper floor above the beam 15. . Since not only the column 13 but also the joint member 31 fixed to the column 13 is present on the lower surface 19 of the beam 15 , the embedment of the column head 17 of the column 13 into the beam 15 is suppressed.

Also, when the placement position of the hold-down hardware 51 is shifted to the left or right from the center at the penetrating position of the side surface 27 of the pillar 13 and the beam 15, it is possible to correspond by adjusting the length of the elongated hole of the horizontal plate 35. becomes.

Thus, in the joint structure of the column 13 and the horizontal member 15 of the present invention, the joint member 31 is connected to the side surface 23 of the beam 15 or the side surface 27 of the column 13 at the connection portion between the beam 15 and the capital 17 of the column 13 . The horizontal plate 35 abuts on the upper end surface 21 of the column 13 or the lower surface 19 of the beam 15, and the load of the upper floor above the beam 15 applied to the column 13 is transferred together with the horizontal plate 35. As a result, the area of the upper end surface 21 of the column 13, which has a smaller area than the beam lower surface 19, is increased together with the horizontal plate 35. This makes it possible to suppress the deformation of the beam 15 due to aging.

In addition, the conventional metal fittings and members fixed across the base and the pillar 13 are plate materials with a thickness of 12 mm, a size of 105 x 155 mm, and a weight of 7.6 kg to 10.5 kg. The joint member 31 used in the joint structure of the invention has a plate thickness of 3.2 mm, a size of 60×60×105 mm, and a weight of about 340 g, which is small and light, and can be easily lifted and handled with one hand. It is said that Conventional products are heavy and bulky, are not easy to handle, are unsuitable for overhead installation work such as the stigma 17, and are dangerous to fall. Since it is lifted from the side and the beam 15 side, it is easy to handle, and the complexity of the construction work is reduced. In addition, since it can be installed on the side surface 23 of the beam 15 with screws, the mounting work becomes easy.

Therefore, according to the joint structure of the column 13 and the horizontal member 15 according to the present embodiment, the load above the beam 15 can be supported by the flat column over the entire area. The cross-sectional area can be set large, and the horizontal cross-sectional area shape of the pillars 13 is orthogonal to the longitudinal direction of the beams 15. Since the direction and the beam height of the bridge beam 45 are small, construction can be performed in the same manner as before, that is, construction can be performed without greatly changing the configuration of the installation of braces, heat insulating materials, etc., and complexity is reduced. It is possible. Moreover, since the beam thickness of the bridge beam 45 can be reduced, the material cost can be reduced.

13... Column 15... Horizontal member (beam)
DESCRIPTION OF SYMBOLS 17... Column head 19... Lower surface 21... Upper end surface 23... Side surface 27... Side surface 31... Joining member 33... Vertical plate 35... Horizontal plate 37... Rib plate 39... Hole 41... Fastening member (screw)
43... Elongated hole 45... Bridge beam 51... Hold-down hardware 53... Base (blade part)
55... Axle

Claims (4)

A joint structure between a pillar and a horizontal member mounted on the stigma of the pillar and connected to the pillar,
The horizontal member is a beam,
The pillar is a flat pillar with a rectangular horizontal cross section. is connected to the beam in a state in which a part of the upper end face is exposed by protruding from the
A vertical plate fixed to one side surface of the beam with a fastening member, and a horizontal plate connected to the lower edge of the vertical plate and flush with the lower surface of the beam and in contact with a part of the upper end surface. , the width of the vertical plate and the horizontal plate is set to be equal to the width of the short side of the column, and the vertical plate and the horizontal plate are rectangular with side edges connected to each other by a pair of rib plates. A joining member having a box shape and having holes drilled in the vertical plate and through which the fastening member penetrates are arranged in pairs on the left and right near the rib plates on the left and right side edges, avoiding the center of the vertical plate. A joint structure between a pillar and a horizontal member, characterized by comprising: A joint structure between a pillar and a horizontal member according to claim 1,
A bridge beam having a smaller beam height than the beam is further connected perpendicularly to the beam on the side surface of the beam above the vertical plate of the joint member. Joint structure with the frame. A joint structure between a pillar and a horizontal member according to claim 1 or 2,
A joint structure between a column and a horizontal member, wherein the horizontal plate of the joint member is provided with an elongated hole having a long diameter along a lower edge of connection with the vertical plate. A joint structure between a pillar and a horizontal member mounted on the stigma of the pillar and connected to the pillar,
The horizontal member is a beam, and the pillar is a pillar with a square cross section whose side length is the width of the beam,
A base portion fixed to the side surface of the column in a state where the column and the beam are connected, and a shaft portion fixed to the base portion and penetrating the beam are provided to reinforce the connection state between the beam and the column. connecting hold-down hardware;
a vertical plate fixed to the side surface of the pillar with a fastening member; and a horizontal plate connected to the upper edge of the vertical plate and flush with the upper end surface of the pillar and in contact with the lower surface of the beam, The width of the plate and the horizontal plate is set equal to the width of the side surface of the column, and the vertical plate and the horizontal plate are formed in a rectangular box shape with side edges connected to each other by a pair of rib plates. In addition, the holes drilled in the vertical plate through which the fastening member penetrates are positioned to avoid the center of the vertical plate and approach the rib plates on the left and right side edges, and are arranged in pairs on the left and right, respectively, a joining member in which an elongated hole having a major diameter along the upper edge of connection with the vertical plate is bored in the horizontal plate;
with
A vertical plate of the joining member is fixed to a side surface of the column along which the base of the hold-down hardware is fixed and the shaft is along, and the shaft passes through an elongated hole of the horizontal plate. Joint structure with the frame.

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