JP2001262701A - Junction hardware, and wooden framework - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide junction hardware and wooden framework capable of facilitating junction between framework members, providing rigid junction at junction parts, and enabling construction of rigid wooden framework having excellent earthquake resistant performance. SOLUTION: Groundsills 2, 2 in the ridge direction and the gable direction are jointed with a pillar 3 on the first ground through junction hardware 9. Each piece of the junction hardware 9 comprises joints 9a, 9b roughly perpendicularly protruded in two horizontal directions toward the groundsills 2, and a joint 9c roughly perpendicularly protruded right upward toward the pillar 3, and the joints 9a, 9b and the joint 9e are formed to have a closed rectangular cross sectional surface to be capable of strongly holding end parts of the goundsills 2, and a lower end part of the pillar 3, respectively. The junction hardware 9 is formed of two side metal fittings 9e, 9f installed on both sides of the junction part between the groundsill 2, 2 and the pillar 3, so by attaching the side metal fittings 9e, 9f in two directions from the outer side and the inner side to both sides of the junction part, the joints 9a, 9b, and 9e are formed to have a closed rectangular cross sectional surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal joint for joining a plurality of wooden frame members in a coaxial direction (joint) or a certain angle (joint), and a wooden frame constructed using the metal joints. In particular, the present invention makes it possible to construct a rigid wooden frame excellent in earthquake resistance by simplifying the connection between the frame members and making the connection portion rigid.

[0002]

2. Description of the Related Art In general, in a wooden frame such as a wooden house, a foundation is laid on a cloth foundation and a bundled material installed as necessary according to a layout, and columns are provided on the foundation at predetermined intervals. It is built, and various beams are suspended between the pillars, such as the two-story floor girder and floor beams, the eaves girder and the hut beam of the hut.

[0003] Particularly, as pillars at key points such as corners,
As many continuous columns as possible from the base to the girder and eaves girder are built as much as possible, and the other columns are columns (tube columns) on the first and second floors, respectively.
Is built. Also, as various types of beams such as girder, floor beam, eaves girder, hut beam, the size of the opening and room,
A number of bridges having different beam structures are bridged depending on the load and the like.

Further, as a joint or connection between frame members such as a base, a column, or a beam, there are generally known traditional methods such as cutting in a tenon shape and inserting into other materials. Joint hardware such as joint hardware and joint hardware are also used. In addition, as a traditional joint hardware, a box hardware that mainly joins a base and a pillar, a hagoita sheet metal and a strip hardware that joins a pillar and a beam, and the like are known.

[0005]

However, in the conventional wooden frame, a large number of columns and beams having different diameters (compositions) and lengths are mixed and used.
A great deal of labor is required in terms of management and the like, and in particular, the processing of joints and connections requires a high degree of skill.

In addition, joints such as joints and joints of a wooden frame need to be machined with a tenon and a tenon, so that in most cases, a reduction in strength due to a cross-sectional defect cannot be avoided. Has a large tendency because the mortise is machined in two directions. For this reason, joints such as joints and joints of wooden frames generally have high compressive strength, but are weak against pulling and bending, and are subject to a large horizontal force during an earthquake or the like so that the tenon can easily come off. There is a risk of rolling or splitting, making it almost impossible to build a rigid wooden frame.

[0007] For example, Japanese Patent Publication No. 49-43041 and Japanese Utility Model Publication No.
There is known a metal joint as disclosed in -166310. These publications disclose a fitting in which a beam receiver having a U-shaped cross section which opens upward is welded in one direction or a plurality of directions to a side surface of a square tube into which upper and lower column ends are inserted. In this case, the pillars and beams are fixed to the fitting with bolts. In the latter case, in addition to the bolt holes, through holes for nails are previously formed in the fitting.

[0008] However, although these fittings can be expected to have a certain strength against pulling or bending, since they are integrally formed as a whole, the shape of the joint, the outer shape of the column and the beam, etc. They could not respond freely to changes in dimensions. The present invention has been made to solve the above-mentioned problems, and in particular, the construction of a rigid wooden frame excellent in earthquake resistance by simplifying the joining of the frame members and making the joints rigid. It is an object of the present invention to provide a joint hardware and a wooden frame which enable the above.

[0009]

As a means for solving the above-mentioned problems, a metal joint according to the present invention is as follows.
The joint portion between the frame members is formed from a pair of side fittings sandwiching the joint member from two directions or a plurality of directions, and is formed so as to have a joint having a closed cross section capable of storing the end portion of the frame member inside.

According to a second aspect of the present invention, in the metal joint of the first aspect, the joint is formed so as to have a plurality of directions, and as a third aspect, a rib is provided on a side portion of the metal joint of the first or second aspect. According to a fourth aspect of the present invention, a wooden frame according to the present invention is constructed by joining a plurality of frame members having at least the same length and diameter with the joint hardware of the first, second or third aspect.

According to a fifth aspect of the present invention, in the wooden frame of the fourth aspect, a plurality of frame members are overlapped to form a beam. In a sixth aspect, in the wooden frame of the fourth or fifth aspect, joining of the frame members is performed. A sheet-like reinforcing member for preventing deformation of the joint portion is attached to a side surface of the portion.

[0012]

1 to 7 show an example of a metal joint and a wooden frame according to the present invention. In FIG. 1, a base 2 is laid on a cloth base 1 in accordance with a floor plan.
On the first floor, pillars 3 on the first floor are erected at predetermined intervals.

Further, beams on the second floor, such as a truss 4 and a floor 5 of a two-story structure, are laid between the upper ends of the pillars 3 along the girder direction and the wife direction, respectively. Columns 6 on the second floor are erected at predetermined intervals on the beams on the second floor such as 5 and the beams of the hut group such as the eaves girder 7 and the hut beam 8 are placed between the upper ends of the columns 6 in the girder direction and the wife direction. It is hung along each.

As various beams such as the base 2, the pillars 3 and the floor beams 5, at least one kind of timber having a unified diameter (composition) and length, for example, a timber of 105 cm square is used. Further, particularly in the case of the beams, the beams are doubled (double) or tripled (triple) in accordance with the size of the opening and the room, the load, and the like, and are so-called stacked beams.

[0015] For example, in the case of a span (column interval) exceeding 1.8 m, a 105 cm square bar is doubled (double).
In the case of a span of more than 2.7 m, each of the beams is spanned as a triple beam of square pieces of 105 cm square.

Further, as shown in FIGS. 2 to 7, for example, as shown in FIGS. 2 to 7, the metal joints 9 having various shapes are used for the frame members such as the base 2, the base 2 and the column 3, or the column 3 and the floor 5. The members are rigidly connected to each other by a nail or an adhesive at a coaxial direction or at an angle (for example, a right angle).

FIGS. 2 (a) and 2 (b) show an example in which the bases 2 and 2 and the first-floor pillar 3 in the girder direction and the wife direction are joined at right angles to each other through the joint hardware 9. FIG. . In the figure, a metal joint 9 has joints 9a and 9b projecting at right angles in two horizontal directions on the base 2 side and a joint 9c projecting at right angles at a right angle on the column 3 side. Is tightly sandwiching the end of the base 2 and the lower end of the pillar 3 from the side, and the joint 9c is formed in a rectangular closed cross-sectional shape capable of storing the end. In addition, a triangular plate-shaped vertical rib 9 is provided at each corner between the joints 9a and 9c and between the joints 9b and 9c.
d are respectively formed.

The metal joint 9 is formed of a pair of metal fittings 9e and 9f attached to both sides of the joint between the bases 2 and 2 and the pillar 3, and the metal fittings 9e and 9f are joined together. The joints 9a, 9b and 9c are formed in a rectangular closed cross-sectional shape by being attached to both sides of the portion from outside and inside.

The side fittings 9e and 9f are integrally formed by casting or pressing or bending a single steel plate. In this case, particularly when it is formed of a single steel plate, it may be formed of a perforated steel plate such as a punching metal, as long as it can secure sufficient strength as a metal joint. Further, the vertical rib 9d may be formed on both or only one of the side fittings 9e or 9f.

The joint 9a of the metal joint 9 thus formed
9b, the ends of the base 2 are strongly sandwiched, respectively, and the lower end of the column 3 is strongly sandwiched between the joints 9c. A plurality of nails are driven from the outside of the joints 9a and 9b to the base 2 side and from the outside of the joint 9c to the column 3 side. In the case of joining with an adhesive, an adhesive is applied to the inside of the fitting hardware 9.

In this case, a plurality of nail holes are formed at predetermined intervals in the side fittings 9e and 9f in advance. It is preferable that the side fittings 9e and 9f are connected to each other by connecting bolts or the like in terms of strength. In this way, the base 2 in the girder direction, the base 2 in the wife direction, and the first floor column 3 are joined in a rigidly joined state via the joint hardware 9. The ends of the braces 10 are joined to the joints of these members via vertical ribs 9d as necessary.

The brace 10 is made of a high-strength fiber such as a shaped steel, a wire, a steel rod, a PC steel rod, a carbon fiber or a glass fiber, a flat steel, a steel plate, or the like, in addition to a square material, and is made of a tensile material or a compressed material. It is installed as a brace that serves one or both of the timbers.

In this case, the square bar and the shaped steel are mainly set as a compression brace, the wire, the steel bar, the PC steel bar, the flat steel or the steel plate are set as a tension brace, and the high-strength fiber such as carbon fiber is formed into a sheet. It is installed as a tension brace similar to a steel plate or the like.

Further, a sheet-like material or a steel plate formed from carbon fiber or the like is installed in a so-called crossed manner so that one side always acts as a tensile brace against horizontal force in both directions. FIGS. 3A and 3B show an example in which the bases 2 and 2 in the coaxial direction (girder direction), the base 2 in the wife direction and the pillar 3 on the first floor are joined via the joint hardware 9. ,
In the drawing, joint metal members 9 are joints 9a and 9 projecting at substantially right angles in the three horizontal directions on the base 2 side and the upper direction on the column 3 side, respectively.
b, 9g, 9c respectively, and joints 9a, 9b, 9
g and 9c are each formed in a rectangular closed cross-section so that the ends of the base 2 and the pillar 3 are strongly sandwiched, and the ends can be stored.

Further, between the joints 9a and 9c, the joints 9b and 9c
At the corners between the joints 9g and 9c, vertical ribs 9d having a triangular plate shape are formed, respectively. Further, the joint hardware 9 is formed from a pair of three metal fittings, one side metal 9h and two side metal fittings 9i, attached to the side of the joint, and the side metal 9h and the side metal 9i are joined together. Of the joints 9a, 9
b, 9g and 9c are formed in a rectangular closed cross section.

Then, the ends of the base 2 in three directions are strongly sandwiched between the joints 9a, 9b and 9g, respectively, and the joint 9c
The lower end of the pillar 3 is strongly pinched. Then, from the outside of the joints 9a, 9b and 9g to the base 2 side, the joint 9c
A plurality of nails are driven into the pillar 3 side from outside. In this way, the base 2 and the column 3 in three directions are rigidly joined to each other through the joint hardware 9.

The other structure such as the method of forming the side fitting 9h and the side fitting 9i is substantially the same as that described with reference to FIG. FIGS. 4A and 4B show an example in which the base 2 and the first-floor pillar 3 in the four directions of the girder direction and the wife direction are joined via the joint hardware 9.
Has joints 9a, 9b, 9g, 9j projecting at substantially right angles in the four lateral directions on the base 2 side, and joints 9c projecting at right angles at right angles to the column 3 side, respectively.
9g and 9j are formed in a rectangular closed cross-section so that the end of the base 2 is strongly sandwiched, and the joint 9c is tightly sandwiching the lower end of the column 3 so that the end can be housed.

Further, between the joints 9a and 9c, the joints 9b and 9c
At each corner between the joints 9g and 9c and between the joints 9j and 9c, a triangular plate-shaped vertical rib 9d is formed. Also, the metal joint 9 is formed from four side metal fittings 9k each of which is attached to the side of the bonding portion, and the four metal mountings 9k are attached to the side of the bonding portion from all sides. The joints 9a, 9b, 9
g, 9j and 9c are formed in a rectangular closed cross section.

Then, the joints 9a, 9b, 9g and 9j
The ends of the base 2 in four directions are strongly sandwiched, respectively, and the lower end of the pillar 3 is strongly sandwiched in the joint 9c. Then, from the outside of the joints 9a, 9b, 9g and 9j,
A plurality of nails are driven into the column 3 from the outside of the joint 9c.

In this way, the four-way base 2 and the column 3 are rigidly joined via the joint hardware 9. Other configurations such as a method of forming the side fitting 9k are the same as those described with reference to FIG. FIG. 5 shows an example in which the trunk 4, the floor 5, the first-floor pillar 3, and the second-floor pillar 6 are joined via a joint hardware 9.
Joints 9a and 9b protruding in two directions perpendicular to the spar direction and the wife direction, and joints 9c and 91 protruding substantially perpendicularly in the two directions of the upper and lower floors, respectively.
a, 9b, 9c and 9l are each formed in a rectangular closed cross-section so that the ends of the girder 4, the floor 5, the first floor pillar 3 and the second floor pillar 6 are strongly sandwiched, and the ends can be stored. ing.

Further, between the joints 9a and 9c, the joints 9b and 9c
Vertical ribs 9d having a triangular plate shape are formed at the corners between the joints 9a and 9l and between the joints 9l and 9c. Further, the metal joint 9 is formed of two side metal fittings 9m and 9n attached to the side of the bonding portion, and the two metal side fittings 9m and 9n are attached to both sides of the bonding portion from two directions. The joints 9a, 9b, 9c and 9l
Are formed in a rectangular closed cross section.

Then, the ends of the trunk 4 and the floor 5 are strongly sandwiched between the joints 9a and 9b, respectively, and the joints 9c and 9l
The lower end of the first floor pillar 3 and the upper end of the second floor pillar 6 are strongly sandwiched. A plurality of nails are driven from the outside of the joints 9a and 9b to the trunk 4 and the floor 5 side, and from the outside of the joints 9c and 9l to the columns 3 and 6 side.

In this way, the trunk 4, the floor beam 5, the first-floor pillar 3, and the second-floor pillar 6 are rigidly joined to each other via the joint hardware 9. The other configuration such as a method for forming the side fittings 9m and n is the same as that described in FIG. FIG. 6 shows the barrel inserts 4 and 4 in the coaxial direction (girder direction).
And an example in which the floor 5 in the direction of the wife, the pillar 3 on the first floor, and the pillar 6 on the second floor are joined via the joint hardware 9, and in the figure, the joint hardware 9 is three squares in the girder direction and the wife direction. The joints 9a, 9g, and 9b project at substantially right angles in the directions, respectively, and the joints 9c and 9l project at substantially right angles in the up and down directions, respectively.
9c and 9l are each formed in a rectangular closed cross-section so that the ends of the first-floor pillar 3 and the second-floor pillar 6 are strongly sandwiched, respectively, and the ends can be stored.

Further, between the joints 9a and 9c, the joints 9b and 9c
Vertical ribs 9d having a triangular plate shape are formed at corners between the joints 9g and 9c, between the joints 9a and 9l, between the joints 9b and 9l, and between the joints 9g and 9l. Also, the joint hardware 9 is a single side fitting 9o attached to the side of the joint.
And two side fittings 9p, and these three side fittings 9p.
o and the side fitting 9p are attached to both sides of the joint from three directions, respectively, so that the joints 9a, 9b, 9g, 9
c and 9l are each formed in a rectangular closed cross section.

Then, the body insert 4 is connected to the joints 9a, 9b, 9g.
And the ends of the floor beams 5 are strongly sandwiched, and the joint 9c
And 9l, the lower end of the first floor pillar 3 and the upper end of the second floor pillar 6 are strongly sandwiched respectively. And the joints 9a, 9
b, 9g, from the outside to the trunk 4 and the floor 5 side, the joint 9c
A plurality of nails are driven into the columns 3 and 6 from the outside of the and 9l.

In this way, the girder 4, the floor beam 5, the first-floor pillar 3, and the second-floor pillar 6 are rigidly joined to each other through the joint hardware 9. Other configurations such as a method of forming the side fittings 9o and 9p are the same as those described with reference to FIG. FIG. 7 shows the coaxial trunk 4 and 4 and the floor 5,
5 shows an example in which the first-floor pillar 3 and the second-floor pillar 6 are joined in a rigidly joined state via a joining hardware 9. In the drawing, the joining hardware 9 is in two directions perpendicular to the girder direction and the wife direction. It has joints 9a, 9b, 9g, 9j projecting at substantially right angles and joints 9c, 9l projecting up and down two directions, respectively.
a, 9b, 9g and 9j connect the trunk 4 and the floor 5 with the joint 9
c and 9l are each formed in a rectangular closed cross section so that the ends of the first-floor pillar 3 and the second-floor pillar 6 are strongly sandwiched, and the ends can be stored.

Further, between the joints 9a and 9c, the joints 9b and 9c
Between the joints 9g and 9c, between the joints 9j and 9c, between the joints 9a and 9l, between the joints 9b and 9l, between the joints 9g and 9l,
At each corner between j and 9l, a triangular plate-shaped vertical rib 9d is formed. Further, the metal joint 9 is formed from four side fittings 9q provided respectively on the sides of the joint, and the four side fittings 9q are attached to the sides of the joint from four directions. The joints 9a, 9b,
9g, 9j, 9c and 9l are formed in a rectangular closed cross section.

The ends of the trunk 4 and the floor 5 are strongly sandwiched between the joints 9a and 9g, 9b and 9j, and the lower end of the column 3 and the upper end of the column 6 are strongly sandwiched between the joints 9c and 9l. Further, a plurality of nails are driven into the trunk 4 and the floor 5 side from outside the joints 9a, 9g, 9b, 9j and into the columns 3 and 6 from outside the joints 9c and 9l.

In this way, the trunk 4, the floor 5, the first-floor pillar 3, and the second-floor pillar 6 are rigidly joined to each other through the joint hardware 9. The other configuration such as the method of forming the side fitting 9q is the same as the case described with reference to FIG.
In each of the joints shown in FIGS. 2 to 7, the shape of the side fittings forming the joint hardware 9 is appropriately changed according to the shape of the joints, and the number of the side fittings is appropriately increased or decreased. , So that the shape and size of the joint can be easily accommodated.

In addition, a sheet-like reinforcing member (high-strength fiber such as carbon fiber or glass fiber) is provided on the side surface of each joint for the purpose of mainly preventing deformation (spreading) of the joint due to horizontal force. For example, a cloth or the like) is attached as a tension reinforcing member. In this case, the reinforcing member may be attached only in the vicinity of the joint, or may be attached so as to extend from the joint to the periphery thereof along the side surface of the frame member.

In addition, FIGS. 2 to 7 particularly describe an example in which the ends of the frame members are joined to each other. However, the ends and the intermediate portions or the intermediate portions of the frame members joined at a certain angle are described. Needless to say, the part and the intermediate part can be easily joined by using the joint metal of the present invention.

Next, the construction method of the wooden frame will be briefly described. First, a cloth base 1 is formed, a base 2 is laid on the cloth base 1 in accordance with the floor plan, and further, a metal joint 9 is installed at a position where the column 1 of the base 2 is built. The base 2 is firmly fixed on the cloth foundation 1 with anchor bolts (not shown). The cloth foundation 1 may be a slab foundation.

Next, the first floor pillar 3 is erected on the base 2, and the lower end is joined to the base 2 via the joint hardware 9.

Next, a beam on the second floor, such as the girder 4 and the floor 5, is bridged between the upper ends of the pillars 3, and both ends are joined to the upper end of the pillar 3 via the joint hardware 9, and the second floor is assembled. Is configured.

Next, a second-floor pillar 6 is erected on the girth 4 and the floor 5, and the lower end is connected to a second-floor beam such as the girder 4 and the floor 5 via a joint hardware 9.

Next, a beam of a hut group such as an eaves girder 7 or a hut beam 8 is bridged between the upper ends of the pillars 6, and both ends are joined with metal fittings 9.
Is joined to the upper end portion of the pillar 6 via the through hole.

The beams such as the trunk 4 and the floor 5 are bridged as so-called overlapping beams according to the span of the pillar supporting the beams and the size of the opening. In addition, if necessary, a brace 10, a burr (not shown), a battering base (not shown), etc. are bridged at important points, and both ends are joined to the joint portion of the frame member through the joint hardware 9 to reinforce the joint. To increase the earthquake resistance.

[0048]

The present invention is as described above. In particular, the metal joint is formed so as to have a joint having a closed cross section from a pair of side fittings which can sandwich the end of the frame member more strongly than the side. Therefore, by simply attaching the pair of side fittings to the joint between the frame members from two or more directions, the frame members can be rigidly joined to each other.

[0049] Therefore, there is no need to process any joints or joints that would otherwise be possible without a carpenter, and it is very easy to join the frame members without relying on the carpenter. it can. In addition, since the joint is formed in a closed cross-section so as to sandwich and store the end portion of the frame assembly material, the force for restraining the end portion of the frame assembly material is extremely large. Since a complete rigid joint can be obtained, splitting fracture of the joint can be prevented beforehand, and seismic resistance can be significantly improved.

Further, since the metal joint is formed of a pair of side fittings which can strongly sandwich the end of the frame member from the side, the shape of the side fitting is appropriately changed in accordance with the shape of the joint. Also, by appropriately increasing or decreasing the number of side fittings, it is possible to easily cope with a change in the shape and size of the joint, and further, a change in the outer dimensions of the frame member.

Therefore, a wooden frame constructed using this metal joint has a particularly high rigidity at a joint between frame members such as columns and beams, and is a wooden frame excellent in earthquake resistance. I can say. In addition, the frame members can be easily joined to each other, so that the construction can be simplified and the construction period can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing an example of a wooden frame according to the present invention.

FIG. 2 shows a joint between a base in two directions and a pillar on the first floor,
(A) is a perspective view showing a joining state, (b) is an exploded perspective view.

FIG. 3 shows a joint between a base in three directions and a pillar on the first floor,
(A) is a perspective view showing a joining state, (b) is an exploded perspective view.

FIG. 4 shows a joint between a three-way base and a pillar on the first floor,
(A) is a perspective view showing a joining state, (b) is an exploded perspective view.

5A and 5B show a joint portion between a beam in two directions, a pillar on the first floor, and a pillar on the second floor, wherein FIG. 5A is a perspective view showing a joined state, and FIG. 5B is an exploded perspective view.

FIGS. 6A and 6B show a joint between a three-way beam, a first-floor pillar, and a second-floor pillar, where FIG. 6A is a perspective view showing a joined state, and FIG. 6B is an exploded perspective view.

FIG. 7 shows a joint between a four-way beam and a pillar on the first floor,
(A) is a perspective view showing a joining state, (b) is an exploded perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cloth foundation 2 Base 3 First-floor pillar 4 Trunk 5 Floor 6 Pillar on second floor 7 eaves 8 Shed bar 9 Joint hardware 10 Bracing

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E125 AA04 AA07 AA08 AA14 AA15 AA16 AA18 AA22 AC23 AG11 AG32 BA51 BA55 BB09 BB16 BB35 BB37 BD01 BE03 BF06 BF08 CA03 CA77 CA81 EA33

Claims (6)

[Claims] 1. A joining hardware for joining a plurality of frame members in a coaxial direction or at an angle, comprising a pair of side fittings sandwiching a joint portion between the frame members from two directions or a plurality of directions, and A metal joint formed to have a joint having a closed cross section capable of storing an end portion of a frame member inside. 2. The metal joint according to claim 1, wherein the joint has a plurality of directions. 3. The metal joint according to claim 1, further comprising a rib on a side portion. 4. A wooden frame, wherein at least a plurality of frame members having a uniform length and diameter are connected to each other with the metal fittings according to claim 1, 2, or 3. 5. The wooden frame according to claim 4, wherein a plurality of frame members are stacked to form a beam. 6. The wooden frame according to claim 4, wherein a sheet-like reinforcing member for preventing deformation of the joint is attached to a side surface of the joint between the frame members.