JP2019163604A - Junction structure of column end part - Google Patents

Abstract

An object of the present invention is to provide a joint structure of a column end which can suppress the burial of the column into the base, which is advantageous in structural calculation without changing the design of the column or the tree species of the base. In a joint structure of a pillar end, a pillar (15) having a wooden frame construction method, a base (13) placed on a foundation upper surface (19) and having a mortise (21) vertically penetrated, and a tenon (27) formed on an end face. The tenon 27 has a bottomed cylindrical portion 29 in which the tenon 27 is fitted inward and the outer periphery is fitted in the mortise hole 21, and is placed on the top surface of the base at the tenon insertion opening edge 33 of the bottomed cylindrical portion 29. A column fitting 17 having a flange 35 with which a column end surface 37 from which a tenon 27 protrudes contacts and a bottom plate lower surface 39 which forms the bottom of the bottomed cylindrical portion 29 contacts with the base upper surface 19. [Selection diagram] Fig. 4

Description

  The present invention relates to a joining structure of column end portions used when joining columns and foundations in a wooden frame construction method.

  For example, in a three-story house using a wooden frame construction method, as shown in FIG. 5, when the upper load P is large, the foundation 505 is placed on the foundation 501 via the cat foundation 503 and the mortise formed in the foundation 505. In the joint structure of the column end portion in which the tenon 511 of the column 509 is fitted to the column 507, there is a concern that the column 509 is embedded in the base 505 at the indentation deformed portion 513. Therefore, the tenon and mortise joint reinforcement disclosed in Patent Document 1 “Method of joining tenon and mortise” and “Joint device for vertical and cross members in wooden house” disclosed in Patent Document 2 are disclosed. A technique for improving the above has been proposed.

JP-A-9-53616 Japanese Patent Laid-Open No. 9-279684

However, simply increasing the joint reinforcement between the mortise and the mortise may not be sufficient to prevent the foundation from sinking. In that case, it is judged as NG in the judgment of slipping. If sinking occurs in the base, there is a risk that the construction of the joinery will deteriorate.
On the other hand, measures are taken to change the foundation to a hard tree species or to increase the cross-sectional area of the column so that it is not NG in the indentation determination. However, if the base tree species is changed to a hard material, material costs and processing costs increase. In addition, when the cross-sectional area of the pillars is increased, the dimensions between the pillars change, and wrinkles such as interference with fittings that are erected between the pillars occur. That is, it becomes necessary to use a normal size fitting such as a sash, to install only a downsized sash, or to fill a gap with another member. In addition, there is a problem that the bracing for forming the bearing wall is steep, that is, the angle is close to vertical, by changing the dimension between the columns. In addition, it has been proposed to install a metal plate between the lower end of the pillar and the upper surface of the base in order to prevent the sinking of the base, but a design change such as shortening the length of the pillar by the thickness of the metal plate is required. Has a problem that the structural calculation is complicated.

  The present invention has been made in view of the above situation, and the object of the present invention is to provide a column end portion that can suppress the indentation of the column into the base without performing complicated structural calculations without changing the column design or the base tree species. It is to provide a joint structure.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The joining structure of the column end portion according to claim 1 of the present invention includes a foundation 11 in a wooden shaft construction method,
A base 13 having a mortise 21 placed on the base upper surface 19 and penetrating vertically;
A pillar 15 having a tenon 27 on its end face;
The tenon 27 is fitted inward and has a bottomed cylinder part 29 whose outer periphery is fitted in the tenon hole 21. The tenon insertion opening edge 33 of the bottomed cylinder part 29 is placed on the base upper surface 25. In addition, the column end fitting 37 with which the bottom end surface 37 forming the bottom of the bottomed cylindrical portion 29 abuts the base upper surface 19 has a flange portion 35 against which the column end surface 37 from which the tenon 27 protrudes. When,
It is characterized by comprising.

  In this column end joint structure, the upper load is conventionally transmitted only in the order of the column 15, the base 13, the cat base 23, and the foundation 11, whereas the upper load is transmitted to the column 15 and the column fitting. 17 and the main transmission of the foundation 11, and the auxiliary 15, the pillar fitting 17, the base 13, the cat base 23, and the foundation 11, and the two types of support structures. . That is, in this joint structure at the column end, the upper load is transmitted directly to the foundation mainly through the column fitting 17. Since most of the upper load is transmitted directly to the foundation, the base 13 is not sunk or is negligible. Thereby, the cross-sectional area of the pillar 15 is not increased, and in addition, the tree species of the base 13 need not be changed. Moreover, since the cross-sectional area of the column 15 may be the same as the conventional one, the fittings such as the adjacent sash can be of normal size, and the problem that the bracing of the bearing wall becomes steep is also eliminated. Further, in this joint structure at the column end, since the upper load is a joint structure that can be directly transmitted from the column 15 to the foundation 11, the deformation of the sinking of the base 13 is reduced or the proof stress is increased, and the test is advantageous. Become.

The junction structure of the column end portion according to claim 2 of the present invention is the junction structure of the column end portion according to claim 1,
In the periphery of the mortise 21 on the base upper surface 25, a recess 41 that is dug down to a depth corresponding to the thickness of the flange 35 to fit the flange 35 is formed.

  In this column end joining structure, a recess 41 is formed around the mortise 21 and is dug down to a depth corresponding to the thickness of the flange 35. In the column fitting 17, when the flange 35 is fitted in the recess 41, the upper surface of the flange 35 is flush with the base upper surface 25. As a result, it is possible to eliminate a slight increase in dimensions due to the incorporation of the column fittings 17, that is, it is possible to perform bonding to the base 13 without changing the dimensions of the columns 15 at all.

The junction structure of the column end portion according to claim 3 of the present invention is the junction structure of the column end portion according to claim 1 or 2,
A gap absorbing plate 47 is sandwiched in a gap 45 formed between the bottom plate lower surface 39 and the base upper surface 19.

  In this joining structure of the column end portions, when the foundation upper surface 19 is not smooth or horizontal, so-called unevenness, a gap 45 may be generated between the bottom plate lower surface 39 of the bottomed cylindrical portion 29 and the foundation upper surface 19. is there. At this time, the gap absorbing plate 47 is appropriately inserted into the gap 45. As the gap absorbing plate 47, for example, one or more iron plates of 0.6 mm or 1.2 mm are inserted as required. In the column fitting 17, when the gap absorbing plate 47 is inserted into the gap 45, the upper load can be directly transmitted to the foundation from the bottom plate lower surface 39 of the bottomed cylindrical portion 29 via the gap absorbing plate 47. .

The junction structure of the column end portion according to claim 4 of the present invention is the junction structure of the column end portion according to any one of claims 1 to 3,
A cat base 23 having a predetermined thickness is interposed between the base 13 and the foundation 11, and a bottom plate lower surface 39 of the bottomed cylindrical portion 29 protrudes from the base lower surface 43 by the thickness of the cat base 23. It abuts on the base upper surface 19.

  In this joining structure of the column ends, when the base 13 is lifted from the base upper surface 19 for the purpose of underfloor ventilation, for example, a cat base 23 is lifted about 1 cm to 3 cm, the bottomed cylindrical portion 29 When the bottom plate lower surface 39 protrudes from the base lower surface 43 and comes into contact with the foundation upper surface 19, the upper load is directly transmitted to the foundation via the bottom plate lower surface 39 of the bottomed cylindrical portion 29.

  According to the column end joint structure according to the first aspect of the present invention, it is possible to suppress the penetration of the column into the base without performing complicated structural calculations without changing the column design or the base tree species.

  According to the junction structure of the column end portion according to the second aspect of the present invention, it is possible to use a column having the same length as that in the conventional case when the column fitting is not used.

  According to the column end portion joining structure according to the third aspect of the present invention, the unevenness of the upper surface of the foundation can be absorbed by inserting the gap absorbing plate.

  According to the column end joint structure according to the fourth aspect of the present invention, it is possible to cope with a foundation structure in which the foundation is levitated from the upper surface of the foundation for the purpose of underfloor ventilation or the like.

It is a disassembled perspective view of the junction structure of the column end part which concerns on embodiment of this invention. It is the side view which notched the base which looked at the joining structure of the column end part shown in FIG. 1 from the orthogonal direction to the base extension direction. It is a principal part enlarged view in case the clearance gap has arisen between the baseplate lower surface of a bottomed cylinder part, and a base upper surface. It is AA sectional drawing of FIG. It is the side view which notched the base which looked at the junction structure of the conventional pillar end part from the orthogonal direction to the base extension direction.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view of a column end joint structure according to an embodiment of the present invention.
The joining structure of the column end portions according to the present embodiment includes a foundation 11, a base 13, a column 15, and a column fitting 17 as main components.

  The foundation 11 is provided at the bottom of the building. In the present embodiment, the foundation 11 receives a base 13 that supports the pillar 15. As the foundation 11 of the wooden frame construction method, for example, a narrow and long cloth foundation or a foundation 11 which is provided on one side without gaps and receives the entire building in one piece can be mentioned. Note that the foundation 11 is not limited thereto, and may be a single foundation, a slab, an underground beam, a cloth stone, a cobblestone, or the like as long as it receives the foundation 13.

  The base 13 is a rung at the bottom of the building. For example, the base 13 has a vertical and horizontal cross-sectional dimension of 105 mm square and is placed on the base upper surface 19. A mortise 21 is formed in the base 13 so as to penetrate vertically. In the present embodiment, the mortise 21 is formed as a through hole, not as a recess or a groove. This is for penetrating the bottomed cylindrical portion 29 described later of the column fitting 17. As a material of the base 13, for example, a kind of beast, a kind of cypress or a kind of beige can be used.

  In the present embodiment, the base 13 is placed on the foundation upper surface 19 via the cat base 23. The cat base 23 is a member interposed between the base 13 and the base 11, which is also referred to as a base packing, and is formed, for example, in a square shape with a side of about 100 mm and a thickness of about 20 mm. The cat base 23 is arranged avoiding the mortise 21 of the base 13. The cat base 23 is provided with a through hole so that an anchor bolt standing from the foundation 11 can pass therethrough. The anchor bolt that has passed through the cat base 23 further passes through the base 13, and then is fastened to the base upper surface 25 by screwing a nut onto the upper end. Examples of the material of the cat base 23 include synthetic resin and rubber.

  The column 15 is provided upright to receive the upper load. As the pillar 15 of the wooden frame construction method, there can be mentioned a single pillar passing through the base 13 without being connected to the eaves and a pipe pillar. The pillar 15 is not limited to these. The pillar 15 may be, for example, a stud provided between tube pillars.

  The column 15 has a tenon 27 formed on the lower end surface. As the tenon 27, for example, a flat tenon having a thickness smaller than that of the width can be used. In the present embodiment, the tenon 27 is formed to project from the end face of the column 15 in a flat rectangular parallelepiped shape having a general size of 90 mm × 30 mm in length and width and about 50 to 60 mm in length.

  The column fitting 17 has a bottomed cylindrical portion 29 in which the tenon 27 is fitted inward and the outer periphery is fitted in the tenon 21. Therefore, the depth of the inner hole 31 of the bottomed cylindrical portion 29 is formed larger than the protruding length of the tenon 27. The inner hole 31 is formed so as to substantially match the cross-sectional shape of the tenon 27. Further, the mortise 21 formed in the base 13 is formed to substantially coincide with the outer cross-sectional shape of the bottomed cylindrical portion 29. For this reason, in the joining structure of the column end portions, the mortise 21 is formed larger than the conventional mortise in which the mortise 27 is directly inserted.

  The column fitting 17 has a rectangular flange 35 projecting over the entire circumference at the tenon fitting opening edge 33 of the bottomed cylindrical portion 29. That is, the inner hole 31 of the bottomed cylindrical portion 29 opens at the center of the flange portion 35. The flange portion 35 is placed on the base upper surface 25, and a column end surface 37 from which the tenon 27 protrudes comes into contact. That is, the collar portion 35 is sandwiched between the base upper surface 25 and the column end surface 37 and is in a state of being sandwiched.

  Examples of the material of the column fitting 17 include SS400 (JIS G 3101). The thickness of the column fitting 17 can be set to about 3.2 mm, for example.

  In this way, in the column fitting 17 assembled between the tenon 27 and the tenon 21, the bottom plate lower surface 39 that forms the bottom of the bottomed cylindrical portion 29 abuts on the base upper surface 19.

  In this embodiment, the column end portion joining structure is dug down to a depth corresponding to the thickness of the flange portion 35 around the mortise 21 of the base upper surface 25 to form a recess 41 that fits the flange portion 35. The The recessed portion 41 is recessed with a shape substantially coinciding with the outer shape of the flange portion 35. The upper surface of the flange portion 35 fitted into the recess 41 is flush with the base upper surface 25.

FIG. 2 is a side view in which the base 13 shown in FIG. 1 is cut away from the base 13 as viewed from the direction orthogonal to the base extending direction.
In the present embodiment, in the column fitting 17, the bottom plate lower surface 39 of the bottomed cylindrical portion 29 protrudes from the base lower surface 43 by the thickness of the cat base 23. Thereby, the bottom plate lower surface 39 abuts the foundation upper surface 19 of the column fitting 17 in the base 13 including the cat base 23.

FIG. 3 is an enlarged view of a main part when a gap 45 is generated between the bottom plate lower surface 39 and the base upper surface 19 of the bottomed cylindrical portion 29.
The joining structure of the column end portions may be such that the gap absorbing plate 47 is inserted into the gap 45 formed between the bottom plate lower surface 39 and the base upper surface 19. As the gap absorbing plate 47, one to a plurality of thin iron plates having a thickness of 0.6 mm or 1.2 mm, for example, are inserted as required.

Next, the operation of the above configuration will be described.
4 is a cross-sectional view taken along the line AA in FIG.
In the joint structure of the column end portions according to the present embodiment, the upper load is conventionally transmitted only in the order of the column 15, the base 13, the cat base 23, and the foundation 11 (see FIG. 5), but FIG. As shown in FIG. 2, the upper load P is supported and transmitted by the main column 15, the column fitting 17 (bottomed tube portion 29), and the foundation 11, and the column 15 and the column fitting are supplementarily provided. 17 (saddle portion 35), base 13, cat base 23, and foundation 11 are transmitted by these two support structures. That is, in this joint structure at the column end, the upper load is transmitted directly to the foundation mainly through the column fitting 17. In this way, in the column end joint structure, most of the upper load is transmitted directly to the foundation 11, so that the base 13 is hardly sunk, or is very slight and slight.

  Thereby, the cross-sectional area of the pillar 15 is not increased, and in addition, the tree species of the base 13 need not be changed.

  In addition, since the cross-sectional area of the pillars 15 may be the same as the conventional one, there is no change in the distance between the pillars, there is no interference with fittings such as adjacent sashes, and the bracing of the bearing wall becomes steep. The trouble which will end is also eliminated.

  Further, in this joint structure at the column end, since the upper load is a joint structure that can be directly transmitted from the column 15 to the foundation 11, the deformation of the sinking of the base 13 is reduced or the proof stress is increased, and the test is advantageous. Become.

  Further, in this joining structure of the column end portions, a recess 41 is formed around the mortise 21 and is dug down to a depth corresponding to the thickness of the flange portion 35. In the column fitting 17, when the flange 35 is fitted in the recess 41, the upper surface of the flange 35 is flush with the base upper surface 25. Thereby, the slight dimension increase by incorporating the pillar fitting 17 can be eliminated. As a result, it is possible to use the column 15 having the same conventional length as that in the case where the column fitting 17 is not used.

  In addition, the thickness of the collar part 35 is about 3.2 mm. When the recess 41 is not provided, the column end surface 37 floats from the base upper surface 25 by the thickness of the flange 35. For this reason, it is necessary to shorten the full length of the column 15 correspondingly. However, especially in the case of a long pillar material such as a three-story through pillar 15, this minute dimensional difference is considered to be a range of dimensional tolerance.

  Further, in this pillar end joint structure, when the foundation upper surface 19 is not smooth or horizontal, so-called unevenness, a gap 45 is generated between the bottom plate lower surface 39 of the bottomed cylindrical portion 29 and the foundation upper surface 19. . At this time, the gap absorbing plate 47 is appropriately inserted into the gap 45. As the gap absorbing plate 47, for example, one or more iron plates of 0.6 mm or 1.2 mm are inserted in combination as necessary. In the column fitting 17, when the gap absorbing plate 47 is inserted into the gap 45, the upper load can be directly transmitted to the foundation from the bottom plate lower surface 39 of the bottomed cylindrical portion 29 via the gap absorbing plate 47. . As a result, by inserting the gap absorbing plate 47, unevenness of the foundation upper surface 19 can be absorbed.

  Such a gap 45 is rare due to a molding defect of the base upper surface 19 or the like. In such a case, the same optional member is also used in the cat base 23.

  Furthermore, in this joined structure of the column ends, when the base 13 floats about 1 cm to 3 cm from the base upper surface 19 with the cat base 23 interposed for the purpose of underfloor ventilation, the bottom plate lower surface 39 of the bottomed cylindrical portion 29 is By projecting from the base lower surface 43 and coming into contact with the foundation upper surface 19, the upper load is directly transmitted to the foundation via the bottom plate lower surface 39 of the bottomed cylindrical portion 29. As a result, it is possible to cope with a foundation structure in which the foundation 13 is levitated from the top surface 19 for the purpose of underfloor ventilation.

  Therefore, according to the joint structure of the column end portion according to the present embodiment, the penetration of the column 15 into the base 13 can be suppressed without performing complicated structural calculations without changing the design of the column 15 or the tree species of the base 13. .

  The present invention is not limited to the above-described embodiments, and the configurations of the embodiments may be combined with each other, or may be modified or applied by those skilled in the art based on the description of the specification and well-known techniques. The invention is intended and is within the scope of seeking protection.

  For example, in the above configuration example, the configuration in which the cat base 23 is sandwiched between the foundation 11 and the base 13 is illustrated. However, the joining structure of the column end portion is also a base support structure in which the cat base 23 is not sandwiched. Applicable. In such a structure in which the base 13 is directly placed on the foundation 11, the length of the bottomed cylindrical portion 29 in the column fitting 17 is the vertical width of the base 13.

DESCRIPTION OF SYMBOLS 11 ... Foundation 13 ... Base 15 ... Column 17 ... Pillar fitting 19 ... Foundation upper surface 21 ... Mortise hole 23 ... Cat foundation 25 ... Base upper surface 27 ... Tenon 29 ... Bottomed cylinder part 31 ... Inner hole 33 ... Tenon insertion opening edge 35 ... collar 37 ... column end face 39 ... bottom plate bottom surface 41 ... recess 43 ... bottom surface 45 ... gap 47 ... gap absorbing plate

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The joining structure of the column end portion according to claim 1 of the present invention includes a foundation 11 in a wooden shaft construction method,
A base 13 having a mortise 21 placed on the base upper surface 19 and penetrating vertically;
A pillar 15 having a tenon 27 projecting from its end face;
The tenon 27 is fitted inward and has a bottomed cylinder part 29 whose outer periphery is fitted in the tenon hole 21. The tenon insertion opening edge 33 of the bottomed cylinder part 29 is placed on the base upper surface 25. Rutotomoni has a flange portion 35 the tenon 27 column end face 37 which is protruded to abut, wherein the bottomed cylindrical portion 29 to the bottom of the bottomed cylindrical portion 29 of the mortise 21 through the base 13 A column fitting 17 in which a bottom plate lower surface 39 to be formed abuts against the base upper surface 19;
Equipped with,
The upper load P above the column 15 is supported by the bottom plate lower surface 39 and the flange portion 35 of the bottomed tube portion 29 of the column fitting 17 and transmitted to the base upper surface .

The junction structure of the column end portion according to claim 2 of the present invention is the junction structure of the column end portion according to claim 1,
Around the mortise 21 of the base upper surface 25, the shape is approximately the same as the outer shape of the flange 35, and the flange 35 is fitted by being dug down to a depth corresponding to the thickness of the flange 35. A concave portion 41 is formed, and the base upper surface 25 and the upper surface of the flange portion 35 are flush with each other.

The junction structure of the column end portion according to claim 3 of the present invention is the junction structure of the column end portion according to claim 1 or 2,
A gap absorbing plate 47 is sandwiched in a gap 45 formed between the bottom plate lower surface 39 and the foundation upper surface 19 due to unevenness of the foundation upper surface 19.

  The present invention relates to a joining structure of column end portions used when joining columns and foundations in a wooden frame construction method.

  For example, in a three-story house using a wooden frame construction method, as shown in FIG. 5, when the upper load P is large, the foundation 505 is placed on the foundation 501 via the cat foundation 503 and the mortise formed in the foundation 505. In the joint structure of the column end portion in which the tenon 511 of the column 509 is fitted to the column 507, there is a concern that the column 509 is embedded in the base 505 at the indentation deformed portion 513. Therefore, the tenon and mortise joint reinforcement disclosed in Patent Document 1 “Method of joining tenon and mortise” and “Joint device for vertical and cross members in wooden house” disclosed in Patent Document 2 are disclosed. A technique for improving the above has been proposed.

JP-A-9-53616 Japanese Patent Laid-Open No. 9-279684

However, simply increasing the joint reinforcement between the mortise and the mortise may not be sufficient to prevent the foundation from sinking. In that case, it is judged as NG in the judgment of slipping. If sinking occurs in the base, there is a risk that the construction of the joinery will deteriorate.
On the other hand, measures are taken to change the foundation to a hard tree species or to increase the cross-sectional area of the column so that it is not NG in the indentation determination. However, if the base tree species is changed to a hard material, material costs and processing costs increase. In addition, when the cross-sectional area of the pillars is increased, the dimensions between the pillars change, and wrinkles such as interference with fittings that are erected between the pillars occur. That is, it becomes necessary to use a normal size fitting such as a sash, to install only a downsized sash, or to fill a gap with another member. In addition, there is a problem that the bracing for forming the bearing wall is steep, that is, the angle is close to vertical, by changing the dimension between the columns. In addition, it has been proposed to install a metal plate between the lower end of the pillar and the upper surface of the base in order to prevent the sinking of the base, but a design change such as shortening the length of the pillar by the thickness of the metal plate is required. Has a problem that the structural calculation is complicated.

  The present invention has been made in view of the above situation, and the object of the present invention is to provide a column end portion that can suppress the indentation of the column into the base without performing complicated structural calculations without changing the column design or the base tree species. It is to provide a joint structure.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The joining structure of the column end portion according to claim 1 of the present invention includes a foundation 11 in a wooden shaft construction method,
A base 13 having a mortise 21 placed on the base upper surface 19 and penetrating vertically;
A pillar 15 having a tenon 27 projecting from its end face;
The tenon 27 is fitted inward and has a bottomed cylinder part 29 whose outer periphery is fitted in the tenon hole 21. The tenon insertion opening edge 33 of the bottomed cylinder part 29 is placed on the base upper surface 25. In addition, a flange portion 35 with which the column end surface 37 from which the tenon 27 protrudes abuts is projected from the tenon insertion opening edge of the bottomed tube portion, and the bottomed tube portion 29 is provided with the tenon hole 21 of the base 13. A column fitting 17 in which a bottom plate lower surface 39 that forms a bottom of the bottomed cylindrical portion 29 through the base abuts against the base upper surface 19;
Comprising
The upper load P above the column 15 is supported by the bottom plate lower surface 39 and the flange portion 35 of the bottomed tube portion 29 of the column fitting 17 and transmitted to the base upper surface.

  In this column end joint structure, the upper load is conventionally transmitted only in the order of the column 15, the base 13, the cat base 23, and the foundation 11, whereas the upper load is transmitted to the column 15 and the column fitting. 17 and the main transmission of the foundation 11, and the auxiliary 15, the pillar fitting 17, the base 13, the cat base 23, and the foundation 11, and the two types of support structures. . That is, in this joint structure at the column end, the upper load is transmitted directly to the foundation mainly through the column fitting 17. Since most of the upper load is transmitted directly to the foundation, the base 13 is not sunk or is negligible. Thereby, the cross-sectional area of the pillar 15 is not increased, and in addition, the tree species of the base 13 need not be changed. Moreover, since the cross-sectional area of the column 15 may be the same as the conventional one, the fittings such as the adjacent sash can be of normal size, and the problem that the bracing of the bearing wall becomes steep is also eliminated. Further, in this joint structure at the column end, since the upper load is a joint structure that can be directly transmitted from the column 15 to the foundation 11, the deformation of the sinking of the base 13 is reduced or the proof stress is increased, and the test is advantageous. Become.

The junction structure of the column end portion according to claim 2 of the present invention is the junction structure of the column end portion according to claim 1,
Around the mortise 21 of the base upper surface 25, the shape is approximately the same as the outer shape of the flange 35, and the flange 35 is fitted by being dug down to a depth corresponding to the thickness of the flange 35. A concave portion 41 is formed, and the base upper surface 25 and the upper surface of the flange portion 35 are flush with each other.

  In this column end joining structure, a recess 41 is formed around the mortise 21 and is dug down to a depth corresponding to the thickness of the flange 35. In the column fitting 17, when the flange 35 is fitted in the recess 41, the upper surface of the flange 35 is flush with the base upper surface 25. As a result, it is possible to eliminate a slight increase in dimensions due to the incorporation of the column fittings 17, that is, it is possible to perform bonding to the base 13 without changing the dimensions of the columns 15 at all.

The junction structure of the column end portion according to claim 3 of the present invention is the junction structure of the column end portion according to claim 1 or 2,
A gap absorbing plate 47 is sandwiched in a gap 45 formed between the bottom plate lower surface 39 and the foundation upper surface 19 due to unevenness of the foundation upper surface 19.

  In this joining structure of the column end portions, when the foundation upper surface 19 is not smooth or horizontal, so-called unevenness, a gap 45 may be generated between the bottom plate lower surface 39 of the bottomed cylindrical portion 29 and the foundation upper surface 19. is there. At this time, the gap absorbing plate 47 is appropriately inserted into the gap 45. As the gap absorbing plate 47, for example, one or more iron plates of 0.6 mm or 1.2 mm are inserted as required. In the column fitting 17, when the gap absorbing plate 47 is inserted into the gap 45, the upper load can be directly transmitted to the foundation from the bottom plate lower surface 39 of the bottomed cylindrical portion 29 via the gap absorbing plate 47. .

The junction structure of the column end portion according to claim 4 of the present invention is the junction structure of the column end portion according to any one of claims 1 to 3,
A cat base 23 having a predetermined thickness is interposed between the base 13 and the foundation 11, and a bottom plate lower surface 39 of the bottomed cylindrical portion 29 protrudes from the base lower surface 43 by the thickness of the cat base 23. It abuts on the base upper surface 19.

  In this joining structure of the column ends, when the base 13 is lifted from the base upper surface 19 for the purpose of underfloor ventilation, for example, a cat base 23 is lifted about 1 cm to 3 cm, the bottomed cylindrical portion 29 When the bottom plate lower surface 39 protrudes from the base lower surface 43 and comes into contact with the foundation upper surface 19, the upper load is directly transmitted to the foundation via the bottom plate lower surface 39 of the bottomed cylindrical portion 29.

  According to the column end joint structure according to the first aspect of the present invention, it is possible to suppress the penetration of the column into the base without performing complicated structural calculations without changing the column design or the base tree species.

  According to the junction structure of the column end portion according to the second aspect of the present invention, it is possible to use a column having the same length as that in the conventional case where no column fitting is used.

  According to the column end portion joining structure according to the third aspect of the present invention, the unevenness of the upper surface of the foundation can be absorbed by inserting the gap absorbing plate.

  According to the column end joint structure according to the fourth aspect of the present invention, it is possible to cope with a foundation structure in which the foundation is levitated from the upper surface of the foundation for the purpose of underfloor ventilation or the like.

It is a disassembled perspective view of the junction structure of the column end part which concerns on embodiment of this invention. It is the side view which notched the base which looked at the joining structure of the column end part shown in FIG. 1 from the orthogonal direction to the base extension direction. It is a principal part enlarged view in case the clearance gap has arisen between the baseplate lower surface of a bottomed cylinder part, and a base upper surface. It is AA sectional drawing of FIG. It is the side view which notched the base which looked at the junction structure of the conventional pillar end part from the orthogonal direction to the base extension direction.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view of a column end joint structure according to an embodiment of the present invention.
The joining structure of the column end portions according to the present embodiment includes a foundation 11, a base 13, a column 15, and a column fitting 17 as main components.

  The foundation 11 is provided at the bottom of the building. In the present embodiment, the foundation 11 receives a base 13 that supports the pillar 15. As the foundation 11 of the wooden frame construction method, for example, a narrow and long cloth foundation or a foundation 11 which is provided on one side without gaps and receives the entire building in one piece can be mentioned. Note that the foundation 11 is not limited thereto, and may be a single foundation, a slab, an underground beam, a cloth stone, a cobblestone, or the like as long as it receives the foundation 13.

  The base 13 is a rung at the bottom of the building. For example, the base 13 has a vertical and horizontal cross-sectional dimension of 105 mm square and is placed on the base upper surface 19. A mortise 21 is formed in the base 13 so as to penetrate vertically. In the present embodiment, the mortise 21 is formed as a through hole, not as a recess or a groove. This is for penetrating the bottomed cylindrical portion 29 described later of the column fitting 17. As a material of the base 13, for example, a kind of beast, a kind of cypress or a kind of beige can be used.

  In the present embodiment, the base 13 is placed on the foundation upper surface 19 via the cat base 23. The cat base 23 is a member interposed between the base 13 and the base 11, which is also referred to as a base packing, and is formed, for example, in a square shape with a side of about 100 mm and a thickness of about 20 mm. The cat base 23 is arranged avoiding the mortise 21 of the base 13. The cat base 23 is provided with a through hole so that an anchor bolt standing from the foundation 11 can pass therethrough. The anchor bolt that has passed through the cat base 23 further passes through the base 13, and then is fastened to the base upper surface 25 by screwing a nut onto the upper end. Examples of the material of the cat base 23 include synthetic resin and rubber.

  The column 15 is provided upright to receive the upper load. As the pillar 15 of the wooden frame construction method, there can be mentioned a single pillar passing through the base 13 without being connected to the eaves and a pipe pillar. The pillar 15 is not limited to these. The pillar 15 may be, for example, a stud provided between tube pillars.

  The column 15 has a tenon 27 formed on the lower end surface. As the tenon 27, for example, a flat tenon having a thickness smaller than that of the width can be used. In the present embodiment, the tenon 27 is formed to project from the end face of the column 15 in a flat rectangular parallelepiped shape having a general size of 90 mm × 30 mm in length and width and about 50 to 60 mm in length.

  The column fitting 17 has a bottomed cylindrical portion 29 in which the tenon 27 is fitted inward and the outer periphery is fitted in the tenon 21. Therefore, the depth of the inner hole 31 of the bottomed cylindrical portion 29 is formed larger than the protruding length of the tenon 27. The inner hole 31 is formed so as to substantially match the cross-sectional shape of the tenon 27. Further, the mortise 21 formed in the base 13 is formed to substantially coincide with the outer cross-sectional shape of the bottomed cylindrical portion 29. For this reason, in the joining structure of the column end portions, the mortise 21 is formed larger than the conventional mortise in which the mortise 27 is directly inserted.

  The column fitting 17 has a rectangular flange 35 projecting over the entire circumference at the tenon fitting opening edge 33 of the bottomed cylindrical portion 29. That is, the inner hole 31 of the bottomed cylindrical portion 29 opens at the center of the flange portion 35. The flange portion 35 is placed on the base upper surface 25, and a column end surface 37 from which the tenon 27 protrudes comes into contact. That is, the collar portion 35 is sandwiched between the base upper surface 25 and the column end surface 37 and is in a state of being sandwiched.

  Examples of the material of the column fitting 17 include SS400 (JIS G 3101). The thickness of the column fitting 17 can be set to about 3.2 mm, for example.

  In this way, in the column fitting 17 assembled between the tenon 27 and the tenon 21, the bottom plate lower surface 39 that forms the bottom of the bottomed cylindrical portion 29 abuts on the base upper surface 19.

  In this embodiment, the column end portion joining structure is dug down to a depth corresponding to the thickness of the flange portion 35 around the mortise 21 of the base upper surface 25 to form a recess 41 that fits the flange portion 35. The The recessed portion 41 is recessed with a shape substantially coinciding with the outer shape of the flange portion 35. The upper surface of the flange portion 35 fitted into the recess 41 is flush with the base upper surface 25.

FIG. 2 is a side view in which the base 13 shown in FIG. 1 is cut away from the base 13 as viewed from the direction orthogonal to the base extending direction.
In the present embodiment, in the column fitting 17, the bottom plate lower surface 39 of the bottomed cylindrical portion 29 protrudes from the base lower surface 43 by the thickness of the cat base 23. Thereby, the bottom plate lower surface 39 abuts the foundation upper surface 19 of the column fitting 17 in the base 13 including the cat base 23.

FIG. 3 is an enlarged view of a main part when a gap 45 is generated between the bottom plate lower surface 39 and the base upper surface 19 of the bottomed cylindrical portion 29.
The joining structure of the column end portions may be such that the gap absorbing plate 47 is inserted into the gap 45 formed between the bottom plate lower surface 39 and the base upper surface 19. As the gap absorbing plate 47, one to a plurality of thin iron plates having a thickness of 0.6 mm or 1.2 mm, for example, are inserted as required.

Next, the operation of the above configuration will be described.
4 is a cross-sectional view taken along the line AA in FIG.
In the joint structure of the column end portions according to the present embodiment, the upper load is conventionally transmitted only in the order of the column 15, the base 13, the cat base 23, and the foundation 11 (see FIG. 5), but FIG. As shown in FIG. 2, the upper load P is supported and transmitted by the main column 15, the column fitting 17 (bottomed tube portion 29), and the foundation 11, and the column 15 and the column fitting are supplementarily provided. 17 (saddle portion 35), base 13, cat base 23, and foundation 11 are transmitted by these two support structures. That is, in this joint structure at the column end, the upper load is transmitted directly to the foundation mainly through the column fitting 17. In this way, in the column end joint structure, most of the upper load is transmitted directly to the foundation 11, so that the base 13 is hardly sunk, or is very slight and slight.

  Thereby, the cross-sectional area of the pillar 15 is not increased, and in addition, the tree species of the base 13 need not be changed.

  In addition, since the cross-sectional area of the pillars 15 may be the same as the conventional one, there is no change in the distance between the pillars, there is no interference with fittings such as adjacent sashes, and the bracing of the bearing wall becomes steep. The trouble which will end is also eliminated.

  Further, in this joint structure at the column end, since the upper load is a joint structure that can be directly transmitted from the column 15 to the foundation 11, the deformation of the sinking of the base 13 is reduced or the proof stress is increased, and the test is advantageous. Become.

  Further, in this joining structure of the column end portions, a recess 41 is formed around the mortise 21 and is dug down to a depth corresponding to the thickness of the flange portion 35. In the column fitting 17, when the flange 35 is fitted in the recess 41, the upper surface of the flange 35 is flush with the base upper surface 25. Thereby, the slight dimension increase by incorporating the pillar fitting 17 can be eliminated. As a result, it is possible to use the column 15 having the same conventional length as that in the case where the column fitting 17 is not used.

  In addition, the thickness of the collar part 35 is about 3.2 mm. When the recess 41 is not provided, the column end surface 37 floats from the base upper surface 25 by the thickness of the flange 35. For this reason, it is necessary to shorten the full length of the column 15 correspondingly. However, especially in the case of a long pillar material such as a three-story through pillar 15, this minute dimensional difference is considered to be a range of dimensional tolerance.

  Further, in this pillar end joint structure, when the foundation upper surface 19 is not smooth or horizontal, so-called unevenness, a gap 45 is generated between the bottom plate lower surface 39 of the bottomed cylindrical portion 29 and the foundation upper surface 19. . At this time, the gap absorbing plate 47 is appropriately inserted into the gap 45. As the gap absorbing plate 47, for example, one or more iron plates of 0.6 mm or 1.2 mm are inserted in combination as necessary. In the column fitting 17, when the gap absorbing plate 47 is inserted into the gap 45, the upper load can be directly transmitted to the foundation from the bottom plate lower surface 39 of the bottomed cylindrical portion 29 via the gap absorbing plate 47. . As a result, by inserting the gap absorbing plate 47, unevenness of the foundation upper surface 19 can be absorbed.

  Such a gap 45 is rare due to a molding defect of the base upper surface 19 or the like. In such a case, the same optional member is also used in the cat base 23.

  Furthermore, in this joined structure of the column ends, when the base 13 floats about 1 cm to 3 cm from the base upper surface 19 with the cat base 23 interposed for the purpose of underfloor ventilation, the bottom plate lower surface 39 of the bottomed cylindrical portion 29 is By projecting from the base lower surface 43 and coming into contact with the foundation upper surface 19, the upper load is directly transmitted to the foundation via the bottom plate lower surface 39 of the bottomed cylindrical portion 29. As a result, it is possible to cope with a foundation structure in which the foundation 13 is levitated from the top surface 19 for the purpose of underfloor ventilation.

  Therefore, according to the joint structure of the column end portion according to the present embodiment, the penetration of the column 15 into the base 13 can be suppressed without performing complicated structural calculations without changing the design of the column 15 or the tree species of the base 13. .

  The present invention is not limited to the above-described embodiments, and the configurations of the embodiments may be combined with each other, or may be modified or applied by those skilled in the art based on the description of the specification and well-known techniques. The invention is intended and is within the scope of seeking protection.

  For example, in the above configuration example, the configuration in which the cat base 23 is sandwiched between the foundation 11 and the base 13 is illustrated. However, the joining structure of the column end portion is also a base support structure in which the cat base 23 is not sandwiched. Applicable. In such a structure in which the base 13 is directly placed on the foundation 11, the length of the bottomed cylindrical portion 29 in the column fitting 17 is the vertical width of the base 13.

DESCRIPTION OF SYMBOLS 11 ... Foundation 13 ... Base 15 ... Column 17 ... Pillar fitting 19 ... Foundation upper surface 21 ... Mortise hole 23 ... Cat foundation 25 ... Base upper surface 27 ... Mortise 29 ... Bottomed cylinder part 31 ... Inner hole 33 ... Tenon insertion opening edge 35 ... collar 37 ... column end face 39 ... bottom plate bottom surface 41 ... recess 43 ... bottom surface 45 ... gap 47 ... gap absorbing plate

Claims (4)

The basics of the wooden frame construction method,
A foundation having a mortise placed on the upper surface of the foundation and penetrating vertically;
A column with a tenon on the end face;
The tenon is fitted inwardly and has a bottomed cylinder part whose outer periphery is fitted into the mortise hole. The tenon-insertion opening edge of the bottomed cylinder part is placed on the upper surface of the base, and the tenon A column fitting in which a bottom end of the bottom plate that forms the bottom of the bottomed cylindrical portion abuts on the top surface of the foundation, having a flange portion on which the projected column end surface abuts
A column end joint structure comprising: It is the junction structure of the pillar end part according to claim 1,
A column end joint structure characterized in that a recess is formed around the mortise on the top surface of the base so as to be dug down to a depth corresponding to the thickness of the flange and to fit the flange. It is the junction structure of the pillar end part according to claim 1 or 2,
A column end portion joining structure, wherein a gap absorbing plate is inserted into a gap formed between the bottom plate lower surface and the foundation upper surface. It is the junction structure of the pillar end part according to any one of claims 1 to 3,
Between the base and the foundation, a cat base of a predetermined thickness is inserted,
The column end portion joining structure, wherein a bottom plate lower surface of the bottomed cylindrical portion protrudes from the lower surface of the base by the thickness of the cat base and abuts on the upper surface of the foundation.

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