JPH08338071A - Bracing device of wooden building - Google Patents

Abstract

PURPOSE: To secure the reinforcement of the whole body of a rectangular frame structure and increase the earthquake-resistant effect, by installing bracings effective for tensile forces in the inner corners in the diagonal positions of a rectangular frame structure defined by a sill or a lateral member and columns. CONSTITUTION: Connecting tools 15 are fixed to both reinforcing hardwares 1 in the diagonal positions and connected to each other by a connection rod 16. In this case, mutually reverse screw shaft parts 16a having an appropriate length from both ends are provided in the connection rod 16 and screwed in nuts 27 of the connecting tools 15. Both connecting tools 15 are connected by the connection rod 16 so as to be adjustable by an effective length. The bracings are arranged between respective internal corners in two pairs of the diagonal positions respectively. The connection rods 16 are rotated clockwise or anticlockwise to adjust the rectangular structure constituted of a sill 18, columns 19, and a lateral member so as to make right angles at the internal corners.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bracing effective for tensile force between diagonally inner corners of a rectangular frame structure portion formed by columns and a base of a wooden building or a horizontal member. Brace) is a bracing device for tensioning.

[0002]

2. Description of the Related Art Bracees in a wooden structure have been constructed by installing wooden brace members effective for compressive force between inner corner portions of the rectangular frame structure portion at diagonal positions. In this case, a notch in which the end of the brace can be fitted is formed on the side surface of the pillar, the base or the cross member, and the brace fitted in the notch is fixed with a nail or the like, or A method is used in which a dedicated metal object that can be fastened to the end of the product with nails or the like is fixed to the inner corner with nails or the like. In any case, it has not been conceived that a bracing using a rod effective for pulling force, that is, a brace, can be easily stretched between the inner corner portions of the rectangular frame structure portion at diagonal positions. It was

[0003]

Therefore, conventionally, it is unavoidable to use a wooden bracing material effective for the compressive force as described above, so that the horizontal bending force in either the left or right direction can be applied to one rectangular frame structure portion. However, the reinforcement that can be effectively dealt with, that is, the brace could not be applied to the stile. In addition, as described above, the construction of the wooden brace has the drawback of requiring a great deal of labor and cost. It is an object of the present invention to provide a brace device that can solve such conventional problems.

[0004]

A bracing apparatus for a wooden building according to the present invention for achieving the above object is shown by a reference numeral of an embodiment which will be described later. A pair of reinforcing metal members 1 fixed to inner corner portions of the rectangular frame structure portion formed by 19 or the like at diagonal positions, and a bracing means 1
Each of the reinforcing metal members 1 is a hollow member whose side surface is formed into a substantially right-angled triangle and whose hypotenuse is open, and a pair of mounting plate portions 2 and 3 forming a right angle with each other.
And the left and right side plate portions 4 of a substantially right triangle that connect the left and right sides of both of these mounting plate portions 2 and 3, respectively, and the mounting plate portions 2 and 3 are provided with mounting holes 7 to 12, respectively. Reference numeral 14 denotes a structure including a connecting member 15 pivotally supported between the left and right side plate portions 4 of each reinforcing metal member 1, and a connecting rod 16 connecting the connecting members 15 so that their effective lengths can be adjusted. Has become.

In carrying out the above-mentioned bracing apparatus of the present invention, each reinforcing metal piece 1 is pressed into a hollow boat shape in which the side surface has a substantially right-angled triangle shape and only the portion corresponding to the hypotenuse thereof is open. The corner portions 5 between the mounting plate portions 2 and 3 and the left and right side plate portions 4 and the corner portions 6 between the mounting plate portions 2 and 3 can be formed into convex curved surfaces. Further, as the mounting holes of the mounting plate portions 2 and 3, bolt holes 7 to 9 and 11 which are burred to have short cylindrical peripheral wall portions 7a to 9a and 11a protruding outward can be provided. Further, as mounting holes for the mounting plate portions 2 and 3, bolt holes 7 to 9 and 11 and a nail fastening hole 1 are provided.
0, 12 can be provided.

Further, each connecting member 15 of the brace means 14
Is formed by bending a strip plate into a substantially U shape, and a screw hole (nut 27) is provided in the U-turn portion, and both end reverse screw shaft portions 16 a of the connecting rod 16 are screw holes ( The nut 27) can be screwed through. In addition, each connecting tool 15 is connected between the left and right side plate portions 4 of each reinforcing metal piece 1 so as to be movable in the length direction of a support shaft (bolt 28a) that pivotally supports the connecting tool 15. The position of the rod 16 can be displaced laterally with respect to the reinforcing metal member 1.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. It is formed by pressing a single metal plate into a hollow boat shape that is open. The reinforcing hardware 1 is
Each of the mounting plate portions 2 and 3 is composed of a long vertical mounting plate portion 2 and a short horizontal mounting plate portion 3 and left and right side plate portions 4 of a substantially right triangle that connect the left and right sides of both mounting plate portions 2 and 3, respectively. The corner 5 between the left and right side plate parts 4 is formed into a convex curved surface, and the corner 6 between the long vertical mounting plate part 2 and the short horizontal mounting plate part 3 is a convex part of the corner part 5. It is formed on a convex curved surface having a radius larger than that of the curved surface.

The long vertical mounting plate portion 2 is provided with three mounting bolt holes 7 to 9 and a plurality of nail fastening holes 10 arranged at equal intervals in the lengthwise direction, and a short horizontal mounting plate portion. 3, one mounting bolt hole 11 and a plurality of nail fastening holes 12 are provided, and the left and right side plate portions 4 are provided between the long vertical mounting plate portion 2 and the short horizontal mounting plate portion 3. Each one member mounting hole 13 located on the bisector of the included angle of is concentrically provided. Each mounting plate part 2, 3
The mounting bolt holes 7 to 9 and 11 are burred so as to have short cylindrical peripheral wall portions 7a to 9a and 11a protruding outward.

In FIG. 3, reference numeral 14 is a brace, which is composed of a pair of connecting members 15 and a connecting rod 16 connecting the connecting members 15 so that their effective lengths can be adjusted. In this FIG. 3, a base 18 fixed by anchor bolts on a cloth foundation 17 and two pillars 1 erected on the base 18
9 and a horizontal frame member 20 that is horizontally installed on the pillar 19 in a rectangular frame structure, which is in a diagonal position 2
Brace means 14 are stretched between the inner corners of the set via the reinforcing metal member 1.

The method of mounting the reinforcing metal piece 1 will be described. As shown in FIGS. 4 to 6, the long vertical mounting plate portion 2 of the reinforcing metal piece 1 is brought into contact with the side surface of the column 19 and the short horizontal mounting plate portion 3 is provided. When abutting against the upper surface of the base 18 or the lower surface of the horizontal member 20, all of the mounting bolt holes 7 to 9 of the long vertical mounting plate portion 2 or selected one or two bolt holes, for example, the illustrated bolt holes. The two bolt holes 7 and 9 at the upper and lower ends and the bolt hole 1 for mounting the short horizontal mounting plate 3
Through holes 21 to 23 are formed in the pillar 19 and the base 18 or the horizontal member 20 so as to match No. 1 in FIG. The diameters of the through bolt holes 21 to 23 are set so that the peripheral wall portions 7a, 9a, 11a of the mounting bolt holes 7, 9, 11 can be press-fitted into the hole end portions. Further, when it is difficult to press the peripheral wall portion 8a of the unused mounting bolt hole 8 against the side surface of the column 19 to make it bite, the mounting bolt hole 8 is used.
It is also possible to machine a shallow hole that allows the peripheral wall portion 8a to be press-fitted.

Therefore, the reinforcing metal fitting 1 has its long vertical mounting plate portion 2 abutted on the side surface of the pillar 19 and its short horizontal mounting plate portion 3 abutted on the upper surface of the base 18 or the lower surface of the cross member. , The peripheral wall portions 7a, 9a, 11 of the mounting bolt holes 7, 9, 11 at the end portions of the respective through bolt holes 21-23.
In the state where a is press-fitted, each through bolt hole 21-23
And bolt 2 for mounting bolt holes 7, 9 and 11
4a to 26a are inserted and nuts 24b to 26b are screwed and fastened to fix the reinforcing metal member 1 to both the pillar 19 and the base 18 or the pillar 19 and the horizontal member 20.

A connecting tool 15 of the brace means 14 is attached to the reinforcing metal member 1 attached to the inner corner portion where the brace means 14 is stretched. The connector 15 is formed by bending a band plate into a U shape, and has a screw hole forming nut 27 inside the U-turn portion so as to match the connecting rod insertion hole provided in the U-turn portion. Is fixed so that it cannot rotate.
Further, mounting holes are concentrically provided in both leg plate portions 15a and 15b of the connecting tool 15, and the both leg plate portions 15 are provided.
The distance between a and 15b is equal to the left and right side plate portions 4 of the reinforcing metal member 1.
It is narrower than the space between them by the radius of the connecting rod 16 or more.

The connecting member 15 is provided with its both leg plate portions 15a,
In the state where 15b is fitted between the left and right side plate portions 4 of the reinforcing metal 1, the member mounting holes 13 of the left and right side plate portions 4 and the mounting holes provided in both leg plate portions 15a and 15b of the connector 15 are formed. A bolt 28a serving as a support shaft is inserted over and is fastened with a nut 28b.
It is attached to the reinforcing metal member 1 so as to be swingable around 7a). At this time, as shown in the drawing, a tubular spacer 29 can be fitted onto the support shaft (bolt 27a) between the leg plate portions 15a and 15b of the connector 15. Of course, the tubular spacer 29 may be fixed to the connecting tool 15 side.

When the connecting tools 15 are attached to the two reinforcing metal fittings 1 at the diagonal positions as described above, the connecting tools 15 are connected by the connecting rods 16. The connecting rod 16 is formed with screw shaft portions 16a in opposite directions from both ends over a proper length, and these both-end reverse screw shaft portions 16a are screwed into the nuts 27 (screw holes) of both connecting tools 15. By
The connecting rod 16 connects the two connecting tools 15 so that the effective length can be adjusted. That is, the connecting rod 16 is connected to both connecting tools 1
5 are rotated in the direction of pulling each other in the forward direction or are rotated in the direction of pushing both couplings 15 away from each other to adjust the diagonal length between the inner corners located at both ends of the coupling rod 16. You can In the example shown in FIG. 3, since the brace means 14 is stretched between the inner corner portions at two diagonal positions as described above, the connecting rod 16 in each brace means 14 is set as described above. By operating the forward and reverse rotations, the base 18, the pillar 19, and the horizontal member 20
The rectangular frame structure consisting of can be adjusted so that each inner corner is at a right angle.

Further, in the example shown in FIG. 3, the connecting rods 16 of the brace means 14 stretched between the two inner corner portions at diagonal positions intersect each other at the central portion. At this time, even if each reinforcing metal piece 1 is attached to the center position of the width of the column 19 at each inner corner, the connecting rods 16 do not bend and press-contact with each other at the intersection, as shown in FIG. As described above, the connecting tool 15 is moved in the length direction of the support shaft (bolt 28a) with respect to the reinforcing metal 1, and each connecting rod 16 is moved.
The position of can be shifted laterally with respect to the reinforcing hardware 1. Of course, in a structure in which the position of the connector 15 cannot be displaced laterally with respect to the reinforcing metal piece 1 in the lateral direction, the reinforcing metal article 1 may be displaced in the lateral direction with respect to the center position of the width of the column 19 and attached. .

As shown by phantom lines in FIG. 3, a stud 30 may be erected at a central position between the two pillars 19. In this case, it is necessary to form a notch in the stud 30 through which the connecting rod 16 can pass, but in order to prevent the strength of the stud 30 from significantly decreasing due to this notch, for example, FIGS. As shown in FIG. 8, the notch 31 provided on the stud 30 can be reinforced by the reinforcing means 32.

The reinforcing means 32 is composed of a wooden block 33 that closes the entrance of the cutout 31 and a pair of left and right pad plates 34 that fix the block 33. The wooden block 33 may reuse a portion of the stud 30 that has been removed to form the cutout 31. Nail holes 35 and bolt holes 36 are provided in the contact plate 34, and both ends of the wooden block 33 fitted into the entrance of the cutout 31 are attached to the stud 30. Is fixed to both side surfaces of the wooden block 33 with nails 37 and bolts and nuts 38 at both sides of the wooden block 33.
It may be fixed with 9 or bolts and nuts 40.

The connecting rods 16 for connecting the connecting members 15 of the brace means 14 so that the effective length thereof can be adjusted include two rods whose outer ends are non-rotatably connected to the connecting members 15. It is also possible to use a turnbuckle structure in which two rod inner end reverse screw shafts are connected by a turnbuckle. In this case, by arranging the turnbuckle portion at a position deviated to one side rather than the central position between the both end connecting tools 15 of the brace means 14, even if the connecting rods 16 cross each other, the turnbuckle can be easily rotated. In addition, the amount of shifting the positions of the connecting rods 16 from each other in the lateral direction can be small.

[0019]

As described above, according to the bracing apparatus for a wooden structure according to the present invention, between the inner corner portions at the diagonal positions of the rectangular frame structure portion formed by the pillar or the horizontal member and the pillar. To
A brace using a connecting rod that is effective for pulling force can be stretched, but according to the configuration of the present invention, the brace is attached to the inner corner formed by the base or the horizontal member and the pillar. The metal piece is a hollow metal piece whose side surface has a substantially right-angled triangle shape, and the portion corresponding to the hypotenuse thereof is open, and connects a pair of mounting plate portions forming a right angle to each other and the left and right sides of these mounting plate portions, respectively. It consists of left and right side plate parts of a substantially right triangle, and since each mounting plate part is a reinforcing metal provided with mounting holes, at the inner corner part of the rectangular frame structure part to which the ends of the braces are joined, By mounting both of the mounting plate portions on both right-angled sides forming the inner corner portion with fixing holes and fixing tools such as nails, lag screws, and bolts and nuts that penetrate the mounting holes, a base or a horizontal member The bond strength between the pillar and the pillar Door can be.

Moreover, since the brace using the connecting rod can be stretched easily and easily in the wall thickness between the two inner corners of the rectangular frame structure portion at diagonal positions. , In combination with the reinforcing effect of the reinforcing metal member fixed to each inner corner, the rectangular frame structure portion has sufficient strength against horizontal external force in either the left or right direction, and a wooden building with high earthquake resistance performance is obtained. Can be built.

According to the second aspect of the invention, the reinforcing metal member for connecting the end portion of the brace to the inner corner portion of the rectangular frame structure portion is formed by welding a metal plate. Since there is no corner and the corner between both mounting plate parts where stress is concentrated is formed by a three-dimensional curved surface, both the members at right angles to each other (the base and When a relative bending force or twisting force is applied to a column, a column and a horizontal material, etc. due to an earthquake, etc., the bending force and the twisting force are reinforced regardless of the bending direction. It is possible to disperse the metal parts in almost all areas and to counter them without concentration of stress. Therefore, it is possible to significantly improve the seismic resistance effect as compared with the conventional reinforcing hardware.

According to the third aspect of the invention, the short cylindrical peripheral wall portion formed by burring is formed in the mounting hole (bolt hole) of each mounting plate portion by the bolt insertion provided on the pillar or the like. By press-fitting into the end of the hole, it is possible to increase the shearing resistance between the reinforcing metal and the column or the like to which the reinforcing metal is attached, and to further enhance the seismic resistance.

Further, when a bolt hole and a nail fixing hole are provided as the mounting holes of each mounting plate portion as described in claim 4, the nail is reinforced even when the bolt cannot be used. Not only can the metal fitting be attached, but the reinforcing metal fitting can be temporarily fixed at a predetermined position with a nail, which facilitates the mounting work.

According to the fifth aspect of the present invention, the structure of the brace means is simpler than the case where the turnbuckle type connecting rod is used, and moreover, the brace is stretched around the cross. However, since there is no bulky turnbuckle, the braces can be easily accommodated within the wall thickness.

Further, as described in claim 6, by displacing the position of the connecting rod in the lateral direction with respect to the reinforcing metal object, the reinforcing metal object is always supported by the pillar even when the braces are stretched on the rack. It can be mounted at the center position of the connecting rods, and it is possible to avoid the inconvenience that the rotating operation becomes difficult because the connecting rods are pressed against each other at the intersecting portions.

[Brief description of drawings]

FIG. 1 is a front view of a reinforcing metal article, and FIG. 1 is a side view of the reinforcing metal article.

2 is a sectional view taken along line AA in FIG. 1A, and FIG.
It is the BB sectional view taken on the line of B.

FIG. 3 is a schematic front view showing a usage example of the brace apparatus.

FIG. 4 is an enlarged vertical sectional front view of a circled portion in FIG.

FIG. 5 is an enlarged side view of the same portion.

FIG. 6 is an enlarged plan view showing each lower end portion of a brace stretched around a cross.

FIG. 7 is an exploded side view showing a stud cut out for a connecting rod and its reinforcing means, and FIG. 7 is a side view showing a state in which the reinforcing means is attached.

FIG. 8 is a cross-sectional enlarged plan view of FIG. 7B.

[Explanation of symbols] 1 Reinforcing hardware 2 Long vertical mounting plate part 3 Short horizontal mounting plate part 4 Left and right side plate parts 5, 6 Corners consisting of convex curved surface 7-9 Mounting bolt holes (mounting holes) 7a-9a Short Cylindrical peripheral wall part 10, 12 Nail fastening hole (mounting hole) 11 Mounting bolt hole mounting hole) 11a Short cylindrical peripheral wall part 13 Member mounting hole 14 Bracing means 15 Connecting tool 16 Connecting rod 18 Base 19 Pillar 20 Horizontal Frame materials 24a to 26a Bolts 28a Bolts 29 Spacers 30 Spares 31 Notches 32 Reinforcing means 33 Wooden blockers 34 Patch plates

Claims (6)

[Claims] 1. A reinforcing member comprising a pair of reinforcing metal members fixed to diagonally inner corners of a rectangular frame structure portion formed of a base or a horizontal member and a pillar, and a bracing means. , A hollow shape whose side surface is a substantially right triangle and whose hypotenuse is open, and a pair of mounting plates that form a right angle with each other and a right angle that connects the left and right sides of these mounting plates. It consists of left and right triangular plate parts, each mounting plate part is provided with a mounting hole, and the bracing means is a connecting tool that pivotally supports between the left and right plate parts of each reinforcing metal. A bracing device for a wooden building, which comprises a connecting rod that connects both connecting members so that the effective length can be adjusted. 2. Each reinforcing metal member is formed by pressing one metal plate into a hollow boat shape whose side surface has a substantially right-angled triangle shape and whose hypotenuse is open.
The bracing apparatus for a wooden building according to claim 1, wherein a corner portion between each mounting plate portion and both left and right side plate portions and a corner portion between both mounting plate portions are formed into convex curved surfaces. 3. The wooden building according to claim 1, wherein the mounting hole of each mounting plate portion is provided with a burring bolt hole having a short cylindrical peripheral wall portion protruding outward. Brace device. 4. A bracing apparatus for a wooden building according to claim 1, wherein a bolt hole and a nailing hole are provided as the mounting holes of each mounting plate portion. 5. Each connecting member of the brace means is a band plate bent into a substantially U shape, and a screw hole is provided in the U-turn portion, and the opposite screw shaft portions at both ends of the connecting rod are the connecting members. 5. The bracing device for a wooden building according to claim 1, wherein the bracing device is screwed through the screw hole. 6. A connecting member of a bracing means is movable between the left and right side plate portions of each reinforcing metal member in the longitudinal direction of a support shaft which swingably supports the connecting member, and The bracing apparatus for a wooden building according to any one of claims 1 to 5, wherein the position is shifted laterally with respect to the reinforcing hardware.