JP2016079583A - Connection reinforcement structure for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection reinforcement structure for a wooden building that enables a truss structure to be completed by a simple construction process, for three types of truss structures of different heights.SOLUTION: A connection reinforcement structure for a wooden building includes: a first chord member (lower beam member 13); a second chord member (upper beam member 17) disposed in a same direction as the first chord member; a plurality of triangular metal fittings 11 disposed between the first chord member and the second chord member, the triangular metal fitting being of a right triangular form with three sides having different lengths; a chord member contacting surface formed at each corner of the triangular metal fitting 11, the contacting surface being parallel to the side of the triangle opposite the corner (a chord member contacting surface 27 opposite to the base, a chord member contacting surface 29 opposite to the hypotenuse, a chord member contacting surface 31 opposite to the rising side); and a plurality of fastening members (a bolt 33, a nut 35) for fixing one side of the triangular metal fitting 11 to the first chord member and the chord member contacting surface opposite the side of the triangle to the second chord member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connection reinforcing structure for a wooden building such as a house.

  A wooden truss structure capable of supporting a large load is widely used for wooden structures (see Patent Documents 1, 2, 3, etc.). For example, in a parallel string truss, an upper chord material that is an upper beam material and a lower chord material that is a lower beam material are arranged in parallel. The lower chord material and the upper chord material are integrally connected by a vertical bundle material and an oblique diagonal material. These bundles and diagonal materials are also called lattice materials. In the model of static truss, the lattice material is joined at the nodes at both ends at the smooth points. In such a parallel string truss, all lattice materials having a structure constituted by a combination of triangles are joined by joining their ends at a sliding point (pin joining).

  Specifically, the wooden truss applied to the roof structure is a land beam arranged along the upper end surface of the end wall of the wife, and a palm that is coupled to the end of the land beam and arranged in accordance with the slope of the roof. A diagonal member arranged obliquely so as to form a triangular truss between the land beam and the joint; the land beam and the joint; the land beam and the diagonal; the joint and the diagonal; It is composed of a coupling plate, a fixed hardware, and the like that are joined at the end and are clamped and fixed by adhesion and nailing (see Patent Document 3).

JP-A-10-169088 JP 2001-152606 A JP 2011-21444 A

  However, conventional wooden trusses require specialized skills to cut both ends of the diagonal material according to the gradient and angle, which requires very laborious work. Furthermore, since the diagonal material and the bundle material are detached as they are, it is necessary to fix the diagonal material and the bundle material from both outer sides with another coupling plate or a fixed hardware, and it takes time to fix the hardware. For example, when changing the height width (string spacing) of a parallel string truss or the like, these time-consuming cutting operations and different types of fixed hardware are required.

  The present invention has been made in view of the above situation, and its purpose is to connect a wooden building that can complete a truss structure as a structure with a simple construction and that can handle truss structures with different heights. It is to provide a reinforcing structure.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The connection reinforcing structure for a wooden building according to claim 1 of the present invention includes:
The other string material along the one string material;
A plurality of triangular metal pieces 11 each having three sides each formed of a right-angled triangle having a different length and disposed between the one chord member and the other chord member;
A chord material contact surface that is formed at each corner of the triangular metal piece 11 and is parallel to a side that faces each of the corners;
A plurality of fastening members for fixing one side portion of the triangular metal piece 11 to the one string member and fixing the string member abutting surface facing the one side portion to the other string member;
It is characterized by comprising.

In this connection reinforcing structure for a wooden building, a plurality of triangular metal objects 11 are fixed between one string material and the other string material. That is, one string material and the other string material are connected via the triangular metal object 11 to form an integral structure. For example, one triangular metal piece 11 has a string material abutting surface at one corner fixed to one string material. Moreover, as for the triangle metal object 11, the both ends of the edge part which opposes one corner | angular part are fixed to the other string material. Each fixing part can be assumed to be joined to the chord material at a smooth point. In that case, if a concentrated load is applied only to each chord material contact surface of the triangular metal piece 11, that is, if no load is applied to each side part, no shearing force or bending moment is generated in each side part of the triangular metal piece 11. . That is, the triangular metal object 11 constitutes a truss structure in which only one axial force of a tensile force or a compressive force along each side portion is generated by fixing one chord member and the other chord member.
Moreover, the use of the triangular hardware 11 eliminates the need for specialized skills to cut both ends of the diagonal material in accordance with the gradient and angle, as in a conventional wooden truss. Furthermore, since the cut diagonals and bundles are fixed, the fixed hardware used in the conventional wooden truss is not required, and at the same time, the fixing work is not required.
Moreover, since the triangular metal object 11 is a right-angled triangle from which each side part differs, one thing can be used for three kinds of height. Therefore, by using the triangular metal object 11, three types of truss structures having different heights can be realized by one type of triangular metal object 11.

The connection reinforcement structure for wooden buildings according to claim 2 of the present invention is the connection reinforcement structure for wooden buildings according to claim 1,
The one chord member and the other chord member are horizontal upper and lower beam members.

  In this connection reinforcing structure for a wooden building, one chord member and the other chord member are a lower chord member (lower beam member 13) and an upper chord member (upper beam member 17). By providing a plurality of triangular hardware 11 between the lower beam member 13 and the upper beam member 17, a parallel string truss is configured. In this parallel string truss, three types of heights can be selected by changing the direction of the triangular bracket 11 to the rotation direction around the center of gravity of the triangular bracket 11.

The connection reinforcement structure for wooden buildings according to claim 3 of the present invention is the connection reinforcement structure for wooden buildings according to claim 1 or 2,
The fastening member comprises a bolt 33 and a nut 35,
A through hole 25 is formed in the chord material contact surface and the side portion,
The nut 35 is screwed into the bolt 33 penetrating the fixing hole 15 drilled at a predetermined position of the one string material and the other string material and the through hole 25, and the one string material The triangular hardware 11 is fixed between the first chord member and the other chord member.

  In this connection reinforcing structure for a wooden building, the triangular bracket 11 is arranged in such a manner that the through hole 25 is aligned with the fixed hole 15 drilled in advance at a predetermined position between one string member and the other string member. . One bolt 33 is inserted into the fixed hole 15 and the through hole 25 that are matched with each other, and a nut 35 is screwed into the insertion tip of the bolt 33. Thereby, the string material and the triangular metal object 11 are easily fixed to form an integral structure.

The connection reinforcement structure for wooden buildings according to claim 4 of the present invention is the connection reinforcement structure for wooden buildings according to any one of claims 1, 2, and 3,
Each side part forming the triangular metal object 11 is formed of a chevron steel material having a chevron cross-sectional shape orthogonal to the side part extending direction.

  In this connection reinforcing structure for a wooden building, each side portion of the triangular bracket 11 is made of angle steel. In the angle steel, the cross-sectional shape orthogonal to the side extending direction is an angle. The chevron is L-shaped by two pieces whose cross-sectional shapes are orthogonal to each other. That is, the triangular metal object 11 can be easily formed on the outer peripheral surface of the triangular metal object 11 by using the angle steel material so that the chord material abutting surface parallel to the plane perpendicular to the plane including the right triangle is formed.

The connection reinforcement structure for wooden buildings according to claim 5 of the present invention is the connection reinforcement structure for wooden buildings according to any one of claims 1, 2, 3, and 4,
The triangular metal piece 11 has a side width length perpendicular to the side portion extending direction of the side portion, which is half of the chord width width orthogonal to the chord material extending direction of the one chord material and the other chord material. Formed to be:
The triangular metal fittings 11 are arranged side by side in the width direction of the one chord member and the other chord member.

  In this connection reinforcing structure for a wooden building, the side width of the triangular bracket 11 is not more than half the chord width. Thereby, a plurality of triangular metal objects 11 can be arranged in a direction along the chord width.

  According to the connection reinforcing structure for a wooden building according to the first aspect of the present invention, the truss structure can be completed by simple construction, and can be adapted to three types of truss structures having different heights.

  According to the connection reinforcing structure for a wooden building according to the second aspect of the present invention, the parallel string truss above the opening can be easily constructed according to the three types of openings having different spans.

  According to the connection reinforcing structure for a wooden building according to claim 3 according to the present invention, it is only necessary to place a fixing hole at a predetermined position of one string member and the other string member, and the position of the fixing hole is determined. The truss structure can be completed with simple installation by simply installing a triangular bracket and fixing it with bolts and nuts.

  According to the connection reinforcing structure for a wooden building according to the fourth aspect of the present invention, a high-strength triangular metal fitting having a cross-sectional shape formed into a mountain shape and thereby forming a string material contact surface can be easily obtained using a commercially available material. And can be manufactured at low cost.

  According to the connection reinforcing structure for a wooden building according to claim 5 of the present invention, the truss structure is fixed at the same position in the string material extending direction by arranging a plurality of triangular metal objects in the string material width direction. The strength can be easily increased.

It is a disassembled perspective view showing the connection reinforcement structure for wooden buildings which concerns on embodiment of this invention. It is explanatory drawing showing the difference of each side part of the triangular metal fitting shown in FIG. It is explanatory drawing showing the height which can be selected in the triangle metal object shown in FIG. It is the use condition explanatory drawing which represented the example of the chord material connected with three different heights of low, middle, and high according to the direction of a triangular metal fitting in (a), (b), and (c). It is a front view of the structure which connected the up-and-down chord material at the low height with the triangular metal fitting in the opening part of a small span. It is a front view of the structure which connected the up-and-down chord material with the triangle metal object in the middle span in the opening part of the medium span. It is a front view of the structure which connected the upper and lower chord materials with the height of the triangular metal fitting in the opening part of a large span. It is a front view which shows the truss structure applied to the pillar. It is a front view which shows the curved or polygonal structure applied to the arch structure. It is explanatory drawing showing the front view which arranged the triangle metal fittings in the same direction in (a), and the front view which arranged the triangle metal fittings in the reverse direction in (b).

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view showing a connection reinforcing structure for a wooden building according to an embodiment of the present invention, FIG. 2 is an explanatory view showing a difference between each side of the triangular bracket 11 shown in FIG. 1, and FIG. It is explanatory drawing showing the height which can be selected in the triangle metal object 11 shown in FIG.
The connection reinforcement structure for a wooden building according to the present embodiment includes, as main components, one string member, the other string member, a triangular metal member 11, a string member contact surface, and a fastening member.

  One chord material is described as a lower beam material 13 which is a lower chord material in the present embodiment. A pair of fixing holes 15 penetrating vertically are formed in the lower beam member 13 at positions corresponding to both ends of one side portion (for example, the bottom side portion) of the triangular bracket 11.

  The other string material is along one string material. The other string material is described as an upper beam material 17 which is an upper string material in the present embodiment. That is, one string member and the other string member are horizontal upper and lower beam members. The upper beam member 17 is provided with a fixing hole 15 penetrating vertically at a position corresponding to a corner portion facing one side portion (bottom side portion) of the triangular bracket 11.

  A plurality of triangular metal objects 11 are arranged between the lower beam material 13 and the upper beam material 17 in the extending direction of the chord material. Each side portion includes a hypotenuse portion 19, a bottom portion 21, and an upright side portion 23. A plurality of through holes 25 are formed in the oblique side portion 19, the bottom side portion 21, and the standing side portion 23 along the longitudinal direction, for example, five in the oblique side portion 19, four in the bottom side portion 21, and three in the standing side portion 23. It is installed. At least a pair of through holes 25 are provided at both ends of each side portion. The through holes 25 provided between the pair serve as spare through holes 25 when the through holes 25 at both ends cannot be used due to interference with other members or the like.

  As shown in FIG. 2, the triangular metal object 11 is formed of a right-angled triangle having different lengths on each of the three sides. The length L1 of the oblique side portion 19 is longer than the length L2 of the bottom side portion 21. The length L2 of the bottom side 21 is longer than the length L3 of the standing side 23 (L1> L2> L3).

  Each side part (the oblique side part 19, the bottom side part 21, and the upright side part 23) forming the triangular metal object 11 is formed of a chevron steel material having a cross-sectional shape perpendicular to the side part extending direction.

  The chord material contact surface is formed at each corner of the triangular metal piece 11. The chord material abutment surface includes a base-to-string chord material abutment surface 27 that opposes the base portion 21, a hypotenuse-opposing chord material abutment surface 29 that opposes the hypotenuse portion 19, and an upright-side opposed chord that opposes the upright portion 23 Material contact surface 31. Each chord material abutting surface is formed in parallel with the side portions facing each other. A through hole 25 similar to the through hole 25 is formed in the hypotenuse-facing chord material abutting surface 29, the standing-side opposed chord material abutting surface 31, and the bottom-side chord material abutting surface 27.

  As for the triangular metal fitting 11, the chord material contact surfaces 27, 29, and 31 and the opposing side portions 19, 21, and 23 are parallel as described above. This parallel separation distance sets the height of the lower beam member 13 and the upper beam member 17. The height of the triangular hardware 11 can be selected from three types depending on the orientation. As shown in FIG. 3, the separation distance between the rising edge portion 23 and the rising edge facing chord material abutting surface 31 that is the chord material abutting surface facing the rising edge portion 23, that is, the height h3 is the bottom side. The separation distance between the base 21 and the chord material abutting surface 27 which is the chord material abutting surface facing the base 21 is higher than the middle height h2. In addition, the separation distance between the base 21 and the base material contact surface 27 that is the chord material contact surface facing the base 21, that is, the middle height h <b> 2 is opposed to the hypotenuse 19 and the hypotenuse 19. It is higher than the separation distance from the hypotenuse-facing chord material abutting surface 29 that is the chord material abutting surface, that is, the lower height h1 (h3> h2> h1).

FIG. 4 is an explanatory diagram of the usage situation of examples of the chord material connected at three different heights of low, middle and high depending on the orientation of the triangular metal object 11.
The connection reinforcing structure for a wooden building using the triangular metal member 11 can be provided between the lower beam member 13 and the upper beam member 17 in three directions obtained by rotating the triangular metal member 11 around the center of gravity. Thereby, the triangular metal object 11 can change the height width which is the space | interval of the lower beam material 13 and the upper beam material 17 into three types, low, medium, and high. That is, as shown in FIG. 4A, the hypotenuse portion 19 and the upper beam are fixed by fixing the hypotenuse portion 19 to the lower beam member 13 and fixing the hypotenuse opposed chord member contact surface 29 to the upper beam member 17. The height with the material 17 can be set to the low height h1. As shown in FIG. 4B, the bottom beam portion 13 and the upper beam material 17 are fixed by fixing the bottom portion 21 to the lower beam material 13 and fixing the bottom pair chord material contact surface 27 to the upper beam material 17. Can be set to a medium height h2. As shown in FIG. 4 (c), the upright side portion 23 is fixed to the lower beam material 13, and the upright side opposed chord material contact surface 31 is fixed to the upper beam material 17. The height with the material 17 can be set to the height h3.

  The fastening member fixes one side portion of the triangular metal piece 11 to one string member, and fixes the chord member contact surface facing the one side portion to the other string member. In the present embodiment, the fastening member includes a bolt 33 and a nut 35. The fastening member may include a flat washer 37 and a spring washer (not shown) used between the nut 35 and the fastening surface. The through hole 25 is formed in the chord material contact surface and each side portion. The bolt 33 and the nut 35 pass through the fixing hole 15 drilled at a predetermined position of the lower beam member 13 and the upper beam member 17 and the through hole 25, and the nut 35 is screwed together. Thereby, the triangular metal object 11 is fixed between the lower beam material 13 and the upper beam material 17.

Next, the construction example of the truss structure which has the connection reinforcement structure for wooden buildings is demonstrated.
FIG. 5 is a front view of the structure 39 in which the triangular metal piece 11 is connected to the upper and lower chords at a low height h1 in the opening portion of the small span, and FIG. FIG. 7 is a front view of the structure 43 in which the upper and lower chord members are connected at a height h3 in the triangular span 11 in the large span opening.
The connection reinforcement structure for wooden buildings can be used, for example, for a structure constituting the lintel of the opening. Eight triangular brackets 11 are used for the structure 39 applied to the small span opening 45 shown in FIG. 5 having a relatively small opening span. The triangular hardware 11 in this case is used at a low height h1. For example, the structure 39 has a low height h1 of 600 to 700 mm and an openable span of about 6000 to 9500 mm.

  Ten triangular brackets 11 are used for the structure 41 applied to the medium span opening 47 shown in FIG. The triangular hardware 11 in this case is used at a medium height h2. For example, the structure 41 has a medium height h2 of 700 to 800 mm and an openable span of about 10,000 to 11000 mm.

  For the structure 43 applied to the large-span opening 49 shown in FIG. The triangular hardware 11 in this case is used at a height h3. For example, the structure 43 has a height h3 of 900 to 1000 mm and an openable span of about 12000 to 13000 mm.

  In this way, the connection reinforcement structure for a wooden building uses three sides of the triangle as a bundle material, an oblique material, or by rotating and assembling one triangular bracket 11 so that three kinds of height widths can be obtained. A truss structure can be realized. Thereby, it becomes possible to make it correspond to the space of the span 7-12m of an opening part with one triangular metal fixture 11. FIG.

Next, the operation of the above configuration will be described.
In the connection reinforcing structure for a wooden building according to the present embodiment, a plurality of triangular metal objects 11 are fixed between the lower beam material 13 and the upper beam material 17. That is, the lower beam member 13 and the upper beam member 17 are connected via the triangular metal object 11 to form an integral structure. For example, one triangular metal piece 11 is fixed to the lower beam member 13 with a chord member contact surface at one corner. In addition, the triangular metal object 11 is fixed to the upper beam member 17 at both ends of the side part facing one corner part. Each fixing part can be assumed to be joined to the chord material at a smooth point. In that case, if a concentrated load is applied only to each chord material contact surface of the triangular metal piece 11, that is, if no load is applied to each side part, no shearing force or bending moment is generated in each side part of the triangular metal piece 11. . In other words, the triangular bracket 11 constitutes a truss structure in which only the tensile force or the axial force of the compressive force in the direction along each side portion is generated by fixing the lower beam member 13 and the upper beam member 17.

Moreover, the use of the triangular hardware 11 eliminates the need for specialized skills to cut both ends of the diagonal material in accordance with the gradient and angle, as in a conventional wooden truss. Furthermore, since the cut diagonals and bundles are fixed, the fixed hardware used in the conventional wooden truss is not required, and at the same time, the fixing work is not required.
Moreover, since the triangular metal object 11 is a right-angled triangle from which each side part differs, one thing can be used for three kinds of height. Therefore, by using the triangular metal object 11, three types of truss structures having different heights can be realized by one type of triangular metal object 11.

  Moreover, in the connection reinforcement structure for wooden buildings, a parallel string truss is comprised by providing the some triangular metal object 11 between the lower beam material 13 and the upper beam material 17. As shown in FIG. In this parallel string truss, three types of heights can be selected by changing the direction of the triangular bracket 11 to the rotation direction around the center of gravity of the triangular bracket 11. As a result, parallel string trusses above the opening can be easily constructed according to each of three types of openings with different spans, for example, the small span opening 45, the medium span opening 47, and the large span opening 49. it can.

  Further, in the connection reinforcing structure for a wooden building, the triangular bracket 11 is arranged at a predetermined position of the lower beam member 13 and the upper beam member 17 with the through hole 25 aligned with the fixed hole 15 drilled in advance. The One bolt 33 is inserted into the fixed hole 15 and the through hole 25 that are matched with each other, and a nut 35 is screwed into the insertion tip of the bolt 33. Thereby, the string material and the triangular metal object 11 are easily fixed to form an integral structure. As a result, only by providing the fixing hole 15 at a predetermined position of the lower beam member 13 and the upper beam member 17, the triangular metal object 11 is assembled at the position of the fixing hole 15 and fixed with the bolt 33 and the nut 35. A truss structure can be completed with just a simple construction.

  Furthermore, in the connection reinforcement structure for wooden buildings, each side part of the triangular bracket 11 is made of angle steel. In the angle steel, the cross-sectional shape orthogonal to the side extending direction is an angle. The chevron is L-shaped by two pieces whose cross-sectional shapes are orthogonal. That is, the triangular metal object 11 can be easily formed on the outer peripheral surface of the triangular metal object 11 by using the angle steel material so that the chord material abutting surface parallel to the plane perpendicular to the plane including the right triangle is formed. As a result, the cross-sectional shape becomes a mountain shape, and thereby the high-strength triangular metal object 11 on which the chord material contact surface is formed can be easily and inexpensively manufactured using a commercially available material.

Next, the modification of the truss structure using the connection reinforcement structure for wooden buildings will be described.
FIG. 8 is a front view showing a structure 51 applied to a pillar.
In the above embodiment, the case where the connection reinforcing structure for a wooden building is applied to a parallel string truss has been described as an example, but the connection reinforcing structure for a wooden building according to the present invention is a column as shown in FIG. You may apply to. This column is erected between the base member 53 and the beam member 55 so that the first column 57 and the second column 59 are parallel to each other. The first pillar 57 and the second pillar 59 are connected by a plurality of triangular metal objects 11 to form a truss structure 51 that is an integral pillar. Even in the case of applying as this pillar, by changing the direction of the triangle metal object 11, the pillar width, that is, the interval width between the first pillar 57 and the second pillar 59 can be configured in three ways.

FIG. 9 is a front view showing a curved or polygonal truss structure 61 applied to the arch structure.
Further, as shown in FIG. 9, the connection reinforcing structure for a wooden building according to the present invention includes a bent lower beam member 63 and a bent upper beam member 65 in which one string member and the other string member are curved or bent. There may be. In this case, one chord member and the other chord member can be integrally connected by a plurality of triangular metal fittings 11 to form an arch-shaped truss structure 61. For example, it is applied to the construction of a dome-shaped roof. It is also possible to do.

  In the connection reinforcing structure for a wooden building according to the present invention, the triangular metal piece 11 has one side width length (length in the direction perpendicular to the paper surface of FIG. 2) perpendicular to the side portion extending direction. You may form so that it may become half or less of the chord material width length (length of the orthogonal | vertical direction of a paper surface of FIG. 4) orthogonal to the chord material extending direction of a chord material and the other chord material. Thereby, as shown in FIG. 10, the triangular metal object 11 can be arranged side by side in the width direction of one string material and the other string material.

  In this connection reinforcing structure for a wooden building, the side width of the triangular bracket 11 is not more than half the chord width. Thereby, a plurality of triangular metal objects 11 can be arranged in a direction along the chord width. As a result, a plurality of triangular metal objects 11 are arranged in the chord material width direction and arranged so that the oblique side portions 19 are in the same direction as shown in FIG. 10A, for example, or as shown in FIG. As described above, by arranging and arranging the oblique side portions 19 so as to overlap each other, it is possible to easily increase the fixing strength at the same position in the string material extending direction in the truss structure.

  Therefore, according to the connection reinforcing structure for a wooden building according to the present embodiment, the truss structure can be completed by simple construction, and can correspond to three types of truss structures having different heights.

11 ... Triangular hardware 13 ... One string material (under beam material)
15 ... Fixing hole 17 ... The other string material (upper beam material)
19 ... Side (slope side)
21 ... Side (bottom)
23 ... Side (Erect side)
25 ... through hole 27 ... string material contact surface (bottom side vs. string material contact surface)
29 ... String material contact surface (chord material facing chord material contact surface)
31 ... String material abutment surface (rising side opposed chord material abutment surface)
33 ... Fastening member (bolt)
35 ... Fastening member (nut)

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
Wooden structure for coupling reinforcing structure according to claim 1 of the present invention, and one of the chords 13 of wood, the other chords 17 of wood along the one chord 13, each side of the three sides A plurality of triangular brackets 11 made of right-angled triangles of different lengths and disposed and fixed between the one chord member 13 and the other chord member 17 ;
Each side portion and each corner portion forming the entire outer periphery of the triangular metal object 11 are formed by angle-shaped steel materials having a cross-sectional shape, and through holes 25 are formed in advance on the outer surfaces of each side portion and each corner portion. And
The outer surface of each corner of the triangular metal piece 11 is a flat chord material contact surface that is parallel to the outer surface of the side facing each of the corners ,
The outer surface of the side that is in contact with one string member 13 of the triangular metal piece 11 and the one string member 13 are directly joined and joined by a fastening member through the through hole 25,
The corner chord material abutting surface of the triangular metal piece 11 that is in contact with the other chord material 17 and the other chord material 17 are directly joined and joined by a fastening member through the through hole 25. and said that you are.

This wooden structure for connection reinforcing structure, between one chord and wooden other chord wood, a plurality of triangular hardware 11 is fixed. That is, one string material and the other string material are connected via the triangular metal object 11 to form an integral structure. For example, one triangular metal piece 11 has a string material abutting surface at one corner fixed to one string material. Moreover, as for the triangular metal object 11, the side part which opposes one corner | angular part is fixed to the other string material. Each fixing part can be assumed to be joined to the chord material at a smooth point. In that case, if a concentrated load is applied only to each chord material contact surface of the triangular metal piece 11, that is, if no load is applied to each side part, no shearing force or bending moment is generated in each side part of the triangular metal piece 11. . That is, the triangular metal object 11 constitutes a truss structure in which only one axial force of a tensile force or a compressive force along each side portion is generated by fixing one chord member and the other chord member.
Moreover, the use of the triangular hardware 11 eliminates the need for specialized skills to cut both ends of the diagonal material in accordance with the gradient and angle, as in a conventional wooden truss. Furthermore, since the cut diagonals and bundles are fixed, the fixed hardware used in the conventional wooden truss is not required, and at the same time, the fixing work is not required.
Moreover, since the triangular metal object 11 is a right-angled triangle from which each side part differs, one thing can be used for three kinds of height. Therefore, by using the triangular metal object 11, three types of truss structures having different heights can be realized by one type of triangular metal object 11.

The connection reinforcement structure for wooden buildings according to claim 4 of the present invention is the connection reinforcement structure for wooden buildings according to any one of claims 1 to 3 ,
The triangular metal piece 11 has a side width length perpendicular to the side portion extending direction of the side portion, which is half of the chord width width orthogonal to the chord material extending direction of the one chord material and the other chord material. Formed to be:
The triangular metal fittings 11 are arranged side by side in the width direction of the one chord member and the other chord member.

According to the connection reinforcing structure for a wooden building according to claims 1 to 4 of the present invention, a wooden truss structure can be completed by simple construction, and corresponds to three types of truss structures with different heights. it can. Further, the opposing wooden one and the other chord members are in contact with the chord material abutting surfaces of the flat and parallel sides and corners of the triangular hardware, and the chord material abutting surfaces of the outer surfaces in advance. Since it is coupled and fixed by a fastening member through the formed through hole, the structure is stable and construction is easy.

According to wooden structures for coupling reinforcing structure of claim 1, wherein according to the present invention, the cross-sectional shape and Yamagata, thereby a high-strength triangular hardware that chord abutment surface is formed, simply by using a commercially available material And can be manufactured at low cost.

According to the connection reinforcing structure for a wooden building according to claim 4 of the present invention, the truss structure is fixed at the same position in the string material extending direction by providing a plurality of triangular metal objects arranged side by side in the string material width direction. The strength can be easily increased.

Claims (5)

One string material,
The other string material along the one string material;
A plurality of triangular brackets arranged between the one chord member and the other chord member, each side portion of three sides consisting of a right-angled triangle having a different length,
A chord material contact surface that is formed at each corner of the triangular metal fitting and is parallel to a side facing each of the corners;
A plurality of fastening members for fixing one side portion of the triangular metal piece to the one string member and fixing the string member contact surface facing the one side portion to the other string member;
The connection reinforcement structure for wooden buildings characterized by comprising. It is the connection reinforcement structure for wooden buildings of Claim 1,
The connection reinforcing structure for a wooden building, wherein the one string member and the other string member are horizontal upper and lower beam members. It is the connection reinforcement structure for wooden buildings of Claim 1 or 2,
The fastening member comprises a bolt and a nut,
A through hole is formed in the chord material contact surface and the side portion,
The nut is screwed to the bolt that penetrates the one string member and the other string member at a predetermined position and the through hole, and the one string member and the other string member A connection reinforcing structure for a wooden building, characterized in that the triangular hardware is fixed between a string member and the string material. It is the connection reinforcement structure for wooden buildings of any one of Claims 1, 2, 3,
Each side part which forms the said triangle metal object is formed in the cross-sectional shape orthogonal to a side part extending direction with the chevron-shaped steel material, The connection reinforcement structure for wooden buildings characterized by the above-mentioned. It is the connection reinforcement structure for wooden buildings of any one of Claims 1, 2, 3, and 4,
The triangular metal piece has a side width length orthogonal to the side portion extending direction of the side portion and is less than or equal to half of the chord member width length orthogonal to the chord member extending direction of the one chord member and the other chord member Formed to be
A connection reinforcing structure for a wooden building, wherein the triangular metal objects are arranged side by side in the width direction of the one string material and the other string material.

Images