JP2014145218A - Horizontal angle combined brace connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal angle combined brace connector with both functions of a horizontal angle brace and a brace connector that can be easily installed by simple construction in a narrow space of corners of bars of length and breadth connected with pillars at four corners upside of the room in a wooden building.SOLUTION: A horizontal angle combined brace connector includes: attachment pieces 4A and 4B comprising a pair of substantially isometric angle steels connected with right angle in substantially L-shape in a plan view; a horizontal angle member 5 comprising a flat rectangular square steel tube welded and fixed between the attachment pieces 4A and 4B; a steel support plate 6 fixed between the attachment pieces 4A and 4B; and a steel brace connection arm part 7 fixed to the lower surface of the support plate 6. An end part of a brace 2 hung over in the diagonal direction at the upside of the room is connected and fixed in a horizontal part 7B of the lower end of a brace connection part 7 with bolts 12 and nuts 13.

Description

  The present invention relates to a fire-brace joint brace connector in which a connector for connecting a brace extending in a diagonal direction to an upper part of a room is integrated with a fire-beam for earthquake-proof reinforcement of a wooden house.

  In recent years, the Great Hanshin-Awaji Earthquake caused by the Hyogoken-Nanbu Earthquake that occurred on January 17, 1995, and the Great East Japan Earthquake caused by the 2011 Tohoku-Pacific Ocean Earthquake that occurred on March 11, 2011 have caused major earthquakes. A disaster has occurred.

  In the event of a huge earthquake such as the one described above, an old wooden house can collapse without being able to withstand the excessive load caused by the vibration, resulting in a large number of deaths and injuries, and loss of important household assets. Such a problem has occurred.

  For this reason, various earthquake-resistant and seismic isolation structures have been adopted in houses such as houses that have been built after experiencing such a massive earthquake. Many wooden beams and braces are used in various places in wooden houses. Earthquake countermeasures have been strengthened, such as incorporating or adopting a rigid floor structure.

  However, in wooden houses built before the huge earthquake as mentioned above, earthquake countermeasures are not enough, there are few places to install reinforcing members such as fire struts, and if there is an upper floor, Since a rigid floor structure is not adopted, there is a risk that if a huge earthquake such as in recent years occurs, the shaking will increase and it will easily collapse.

  Thus, in such an old wooden house, a wooden fire beam as described in Patent Document 1 is not provided at the corner where the fire beam at the corner between the vertical and horizontal trunk differences connected to the column is passed. Moreover, the seismic reinforcement of the house is performed by adding steel fire metal objects etc. which are described in patent document 2 later.

JP-A-10-110505 JP 2004-169270 A

  However, for large earthquakes such as those that have occurred in recent years, simply adding additional fire struts and fire metal as described above to an aged wooden house will result in insufficient rigidity between the vertical and horizontal trunk differences. Therefore, it is necessary to reinforced seismically so as to minimize the angular displacement between the vertical and horizontal trunk differences in the event of an earthquake by laying the braces horizontally in the diagonal direction of the vertical and horizontal trunk differences.

  However, due to the structure of the wooden house, there is a case where a beam lower than the trunk difference is arranged on the inside upper side of the room, and in such a case, in order to avoid interference between the beam and the brace, It was necessary to process a hole through which the brace penetrated, and it took time and labor to construct the brace, and the provision of the hole caused a problem of reducing the strength of the beam.

  Therefore, the present invention solves the problems in the prior art as described above, and easily in a narrow space at the corners of the vertical and horizontal trunk differences connected to the pillars above the four corners of the room of the wooden house by simple construction. It is an object of the present invention to provide a fire-brace combination brace connector that can be installed and has the functions of both a fire beam and a brace connector.

   Each of the first combination of the bracing and bracing connector of the present invention provided for the above-mentioned purpose is formed with attachment holes at a plurality of vertical pieces along the longitudinal direction, and is cut obliquely. A mounting made of a pair of substantially equal-length chevron steel pieces, which are welded by facing the end faces of the horizontal pieces at one end and being connected at right angles to a substantially L-shape in plan view, with the vertical pieces facing upward The piece, the bottom surface of both ends, and the both end surfaces are welded to the upper surface of the opposing horizontal piece and the inner side surface of the vertical piece, respectively, at a position near the other end of both of these attachment pieces. The upper surface is formed near the hypotenuse by combining a fired member made of a flat square steel pipe and a right-angled isosceles triangle shape, with the corners perpendicular to the corners where the mounting pieces are welded at right angles. Welded to the bottom of the horizontal piece of the mounting piece on both sides A steel support plate, and a steel brace connecting arm portion having a horizontal portion in which an upper end is fixed to the lower surface of the support plate and a bolt hole for bolting the end portion of the brace is formed at the lower end. Is.

  Further, the second one of the combined bracing tool according to the present invention has mounting holes formed at a plurality of vertical pieces along the longitudinal direction, and one end horizontally cut obliquely. A pair of mounting pieces made of substantially equal-length angle steel, which are connected to each other by facing the end faces of each other and welded at right angles to a substantially L-shape in plan view, with the vertical pieces facing upward, and lower surfaces of both ends From the square steel pipe whose cross section is flattened up and down, both end faces are welded to the upper surface of the opposing horizontal piece and the inner side of the vertical piece at a position near the other end of both mounting pieces. And a corner piece aligned with a right-angled corner where the horizontal pieces of the mounting pieces are welded to each other, and the hypotenuses are horizontal pieces of the mounting pieces on both sides. Welded to the edge of the A steel support plate whose surface is welded to the lower surface of the fire striking member, and a horizontal portion having an upper end fixed to the lower surface of the support plate and a bolt hole connecting the end of the brace to the lower end. It has a steel brace connecting arm portion.

  Further, according to the third embodiment of the bracing / brace coupler of the present invention, the mounting holes are formed at a plurality of positions of the vertical piece along the longitudinal direction, and the horizontal of one end which is obliquely cut is provided. A pair of mounting pieces made of substantially equal length angle steel, which are connected to each other by facing the end faces of each other and welded at right angles to a substantially L-shape in plan view, with the vertical pieces facing downward, and upper surfaces of both ends From the square steel pipe whose cross section is flattened up and down, both end faces are welded to the bottom face of the opposite horizontal piece and the inner side face of the vertical piece at a position near the other end of both mounting pieces. A horizontal piece of mounting pieces on both sides of the hypotenuse in the vicinity of the hypotenuses, and the corners perpendicular to the corners formed by right-angled isosceles triangles and the mounting pieces welded at right angles. A steel support plate welded to the upper surface of Upper end is fixed to the lower surface of the holding plates, those having a brace connecting arm portion made of steel having a horizontal portion which bolt holes for the bolts connecting the ends of the brace is formed at the lower end.

  Further, the fourth one of the combined bracing tool according to the present invention has mounting holes formed at a plurality of positions on the vertical piece along the longitudinal direction, and one of the horizontal ends cut obliquely. A pair of mounting pieces made of substantially equal length angle steel, which are connected to each other by facing the end faces of each other and welded at right angles to a substantially L-shape in plan view, with the vertical pieces facing downward, and upper surfaces of both ends From the square steel pipe whose cross section is flattened up and down, both end faces are welded to the bottom face of the opposite horizontal piece and the inner side face of the vertical piece at a position near the other end of both mounting pieces. And a corner piece aligned with a right-angled corner where the horizontal pieces of the mounting pieces are welded to each other, and the hypotenuses are horizontal pieces of the mounting pieces on both sides. Welded to the edge of the A steel support plate whose surface is welded to the upper surface of the fire striking member, and a horizontal portion in which an upper end is fixed to the lower surface of the support plate and a bolt hole for bolting the end of the brace is formed at the lower end. It has a steel brace connecting arm portion.

  In the third and fourth aspects of the present invention, the upper ends of the right-angled corners on the outer sides of the pair of steel plates connected to each other at right angles are vertically oriented in a substantially L shape in plan view. In accordance with the corners of the vertical pieces of the pair of attachment pieces being welded, the vicinity of the upper edge of the outer surface of each steel plate is welded to the inner side surface of each corresponding vertical piece. It is desirable that a gusset plate having a mounting hole for connecting a reinforcing bar arranged in parallel to the lower side of the trunk difference is provided in the vicinity of the lower edge of each steel plate.

  In each of the above inventions, it is also desirable that the brace connecting arm portion is bolted so as to be disassembled with respect to the support plate.

  Further, in each of the above-mentioned inventions, the brace connecting arm portion has a first horizontal portion arranged on the lower surface thereof with the center line in the longitudinal direction aligned with the bisector of the right-angled corner portion of the support plate, and A relay part that is bent downward by a predetermined length from the end of the horizontal part near the bottom of the support plate, and is bent horizontally from the lower end of the relay part to the opposite side of the first horizontal part, and a brace is connected to the lower surface by bolts A steel strip having a constant width, which is bent into a substantially Z-shape in a side view, comprising a second horizontal portion having a mounting hole for carrying out, and at least a parallel corresponding to each of the first horizontal portion and the second horizontal portion It is also desirable to have a pair of steel side plates that have two sides on the top and bottom and are welded to the edges on both sides in the width direction with the band steel in between.

  According to the brace and brace connector according to the invention described in claim 1, even when the beam having the lower surface lower than the installation height of the pair of attachment pieces is present on the inside upper side of the room, Since it is connected to the horizontal portion at the lower end of the brace connecting arm portion located below these mounting pieces, interference with such a low beam can be avoided.

  In addition, since the striking member provided between the pair of mounting pieces is formed of a square steel pipe whose cross section is flat vertically, between the vertical pieces of the mounting pieces on both sides while ensuring sufficient compressive strength. Built in compact.

  Therefore, there is no risk of interference with the joists that support the floor material on the second floor, the upper surface of the fire striking member is arranged on the trunk difference that fixes these mounting pieces, and the vertical and horizontal trunk difference where the columns are connected. It can be easily installed in a narrow space at the corner.

  In addition, the steel support plate formed in a right-angled isosceles triangle shape plays a role of connecting between each mounting piece and the brace connecting arm portion, and with the striking member, changes in the angle between these mounting pieces. Because it acts as a reinforcing member that regulates, it can effectively prevent angular displacement between vertical and horizontal trunks connected to the pillars in the event of an earthquake, and it can cooperate with braces installed in the diagonal direction of the room. It can work to obtain an excellent seismic reinforcement effect.

  According to the fire-brace combination brace connector according to the invention described in claim 2, in addition to the effect of the invention described in claim 1 as described above, the upper surface of the bottom side of the support plate is the lower surface of the fire-bonding member. Therefore, when a large tensile load is applied from the brace to the brace connecting arm, the bending deformation can be suppressed. Can be increased.

  In addition to the effect of the invention of the first aspect, the vertical piece of the pair of attachment pieces is further downward with respect to the horizontal piece. Therefore, when attaching a brace / brace connector, it is possible to attach a coach bolt or a through-bolt to the mounting hole formed in the vertical piece from the lower indoor side, thus improving workability. be able to.

  According to the brace and brace connector according to the invention described in claim 4, in addition to the effect of the invention of claim 2, the vertical of each of the pair of mounting pieces is also provided, as in the invention of claim 3. Since the piece is directed downward with respect to the horizontal piece, it is possible to improve the workability of the mounting operation of the combined bracing tool for use with fire.

  According to the fire-brace combination brace connector according to the invention described in claim 5, the fire-brace combination brace connector that receives the tensile load of the braces installed horizontally in the diagonal direction of the room through the gusset plate Part of the axial compressive load acting on the trunk difference is shared by the reinforcing bars arranged in parallel below these trunk differences, reducing the burden on the trunk difference and improving the earthquake resistance of the house. Can be increased.

  According to the fire-brace combination brace connector according to the invention described in claim 6, since the brace connection arm portion is fixed to the support plate so as to be disassembled by bolt connection, the fire-brake combination brace connector is attached. When carrying in or storing on site, removing the brace connecting arm part facilitates the carrying-in operation and saves the storage space.

  Also, multiple types of brace connecting arms with different vertical dimensions are manufactured, the remaining parts are manufactured in common with the same specifications, and the two are combined as appropriate, making it flexible for various types of wooden houses. Therefore, productivity can be improved and manufacturing cost can be reduced.

  According to the bracing and bracing connector according to the invention described in claim 7, the brace connecting arm portion further includes a band steel having a constant width bent in a substantially Z shape in a side view, and the band steel therebetween. Because it is composed of a pair of steel side plates that are welded to the edges on both sides in the width direction, it is easy to manufacture, and the bending moment around the horizontal axis and the vertical acting on the tensile force received from the brace Sufficient rigidity and strength that can counter the torsional moment about the axis can be ensured.

It is a top view inside a wooden house 1st floor where the bracing combined use brace connector is shown which shows the 1st Embodiment of this invention. It is a side view of the brace combined tool for fire-blade in the 1st Embodiment of this invention. It is a perspective view of a bracing combined use brace coupling tool in a 1st embodiment of the present invention. It is a top view of the bracing combined use tool for fire beating in the 1st Embodiment of this invention. It is the perspective view which looked at the bracing combined use bracking coupling tool in the 1st Embodiment of this invention from the back side. It is a longitudinal cross-sectional view which shows the AA cross section of FIG. It is a perspective view of the bracing combined use tool for fire burning in the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the brace combined tool for fire-fitting in the 2nd Embodiment of this invention. It is a perspective view of the brace combined tool for fire-fitting in the 3rd Embodiment of this invention. It is a longitudinal cross-sectional view of the bracing combined bracing connector in the 3rd Embodiment of this invention. It is a perspective view of the brace connection arm part provided in the bracing combined use brace coupling tool in the 3rd Embodiment of this invention. It is a perspective view of the brace combining tool for fire-fitting in the 4th Embodiment of this invention. It is a perspective view which shows the installation state of the bracing combined use tool for fire-fitting in the 4th Embodiment of this invention. It is a longitudinal cross-sectional view of the bracing combined use tool for burning in the 4th Embodiment of this invention. It is a horizontal sectional view of the gusset plate part which shows the connection structure of a bracing combined brace connector and a reinforcement bar in the 4th embodiment of the present invention. It is a perspective view which shows the structure of the connection metal fitting used for connection of a reinforcement bar and a pillar. It is a fragmentary perspective view which shows the connection structure of a reinforcement bar and a pillar.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of the interior of a first floor of a wooden house to which a fire-braking combination brace connector is attached, showing a first embodiment of the present invention.

  As shown in the figure, the fire-brace combination brace connector 1 of the present invention is attached to each of the upper four corners of the Japanese-style room A, the Western-style room B, and the dining kitchen C on the first floor of the wooden house, A plurality of braces 2 are spanned between the fire-brace combination brace couplers 1 in the diagonal direction of the room.

  In the present embodiment, these braces 2 are made of flat steel having a rectangular cross section that is flat on the upper and lower sides, and one end side of each brace is bolt-connected to the corresponding brazing and bracing coupler 1. In addition, the other end is connected to the steel connecting ring 3 at an upper position in the center of the room, and each room is provided with a brace connecting tool 1 for four corners and a brace passed between them. 2 is seismically reinforced.

  FIG. 2 is a side view of the brazing / brace coupler 1, FIG. 3 is a perspective view thereof, and FIG. 4 is a plan view thereof. As shown in these drawings, the bracing / brace coupler 1 is a plan view. A pair of mounting pieces 4A and 4B connected at right angles to a substantially L-shape in view, a fired member 5 fixed obliquely between these mounting pieces 4A and 4B, and fixed between these mounting pieces 4A and 4B It comprises a support plate 6 and a brace connecting arm portion 7 attached to the lower surface of the support plate 6.

  These mounting pieces 4A and 4B are made of isometric steel, and each piece is cut at an angle of 45 degrees at one end with the vertical piece b facing upward with respect to the horizontal piece a. The horizontal pieces a are joined together and welded at a right angle. Further, as shown in FIG. 5, attachment holes h <b> 1 are formed at a plurality of locations on the vertical piece b along the longitudinal direction of each of the attachment pieces 4 </ b> A and 4 </ b> B.

  As shown in FIG. 2 and FIG. 3, coach bolts 8 are inserted into the respective mounting holes h 1, and the mounting pieces 4 A and 4 B are attached to the side surfaces of the longitudinal and lateral trunk differences 10 and 11 orthogonal to the pillar 9. By fixing with these coach bolts 8, both the trunk differences 10 and 11 and the bracing joint 1 for fire-fitting are connected and fixed together.

  When connecting and fixing the mounting pieces 4A and 4B to the trunk differences 10 and 11, instead of the coach bolt 8, the through bolts are passed through these trunk differences 10 and 11, and nuts are attached from the opposite side. It may be fixed.

  Further, the fire-fitting member 5 is formed by cutting both end surfaces of a square steel pipe whose cross section is flat in an up and down direction at an angle of 45 degrees, and both end surfaces and lower surfaces of both end portions are both attachment pieces 4A. 4B is welded to the upper surface of the opposing horizontal piece a and the inner side surface of the vertical piece b at a position near the other end of 4B.

  The support plate 6 is formed of a steel plate having a right-angled isosceles triangle shape. As is apparent from FIG. 5, the right-angled corner 6 </ b> A is a corner where the two attachment pieces 4 </ b> A and 4 </ b> B are welded at a right angle. The upper surface is welded to the lower surface of the horizontal piece a of both these attachment pieces 4A and 4B in the vicinity of each hypotenuse according to the part.

  As shown in FIGS. 5 and 6, the brace connecting arm portion 7 includes a horizontal portion 7A (first horizontal portion), a horizontal portion 7B (second horizontal portion), a relay portion 7C, and a pair of left and right It is comprised from the side plate 7D.

  These two horizontal portions 7A and 7B and the relay portion 7C are integrally formed by bending a steel strip having a constant width into a substantially Z shape when viewed from the side, and the upper horizontal portion 7A is formed in the longitudinal direction. The center line is welded and fixed to the lower surface of the support plate 6 in accordance with the bisector of the right corner 6A of the support plate 6.

  The relay portion 7C is formed by bending a predetermined length downward from a position near the bottom of the support plate 6 of the horizontal portion 7A. Further, the horizontal portion 7B is formed by being horizontally bent from the lower end of the relay portion 7C to the side opposite to the corner portion 6A.

  Further, the pair of side plates 7D are made of steel and are formed in a quadrilateral shape having parallel upper and lower sides each having the same length as the horizontal portions 7A and 7B. Welded to each edge.

As shown in FIGS. 5 and 6, a mounting hole h <b> 2 for connecting the brace 2 is formed in the horizontal portion 7 </ b> B located at the lower end of the brace connecting arm portion 7, and is formed at one end of the brace 2. The brace 2 is connected and fixed to the lower surface of the horizontal portion 7B by fitting the mounting hole 2A and the mounting hole h2 and penetrating the bolt 12 and attaching the nut 13 from the opposite side.
In the present embodiment, a high-tensile bolt and a corresponding high-strength nut are used for the bolt 12 and the nut 13, respectively.

  As shown in FIG. 3, each brace 2 is made of a high-tensile steel having a screw formed at the tip at the end opposite to the end connected to the brazing / brace connector 1 side. The screw rod 2B is fixed by welding.

  The tip ends of these threaded rods 2B pass through attachment holes (not shown) formed at four locations around the steel connecting ring 3, and a double nut 14 is screwed on the inner peripheral side of the connecting ring 3. Thus, the connecting ring 3 is prevented from coming off.

  As shown in FIG. 1, the fire-brace combination brace connector 1 and the braces 2 connected to these, which are arranged at the four corners of each room, are placed diagonally between the fire-brace combination brace connectors 1. The connecting position of each screw rod 2B with respect to the connecting ring 3 is adjusted in the axial direction by rotating the double nut 14 and fixed at an appropriate position so as to be positioned.

  The adjustment of the double nut 14 is performed in a state where the bolts 12 and nuts 13 on the side of each brace and brace connector 1 are slightly loosened so that the brace 2 can be angularly displaced around the bolt 12. Tighten the nuts 13 and fix them.

  As shown in FIG. 2, the bracing / brace connector 1 has a beam 15 located on the inner upper side of the room, the lower surface of which is lower than the height of the two attachment pieces 4A, 4B attached to the trunk difference 10, 11. Even in this case, the brace 2 is connected to the lower end of the brace connecting arm portion 7 attached via the support plate 6 between the attachment pieces 4A and 4B, so that interference with the beam 15 can be avoided. it can.

  In addition, since the striking member 5 provided between the mounting pieces 4A and 4B is formed of a square steel pipe whose cross section is flat vertically, the mounting pieces 4A and 4B on both sides are secured while ensuring sufficient compression strength. Between the vertical pieces b.

  As a result, the striking member 5 is arranged on the upper surface of the trunk difference 10, 11, and the pillar 9 is coupled to the bracing coupler 1 for both the striking and bracing 1 without interfering with the joist 17 that supports the floor material 16 on the second floor. It can be easily installed in a narrow space at the corners of the vertical and horizontal barrels 10 and 11.

  Further, the brace connecting arm portion 7 is formed on the inner surfaces of the pair of side plates 7D at the edges on both sides of the upper and lower horizontal portions 7A, 7B and the relay portion 7C formed by bending a narrow strip-shaped steel plate in a Z-shape when viewed from the side. Since the structure is integrated by welding, the manufacturing is easy, and the bending force around the horizontal axis acting on the brace connecting arm portion 7 and the brace 2 are connected by the tensile force received from the brace 2. It is possible to ensure sufficient rigidity and strength that can resist the torsional moment about the vertical axis that acts when the longitudinal direction of the brace 2 is inclined in the horizontal plane with respect to the longitudinal direction of the horizontal portion 7B.

  The support plate 6 formed of a right-angled isosceles triangular steel plate plays a role of connecting the mounting pieces 4A, 4B and the brace connecting arm portion 7 together with the mounting member 5 and these mounting pieces. Since it serves as a reinforcing member that regulates the change in angle between 4A and 4B, it can prevent angular displacement between the vertical and horizontal trunk differences 10 and 11 when an earthquake occurs, An excellent seismic reinforcement effect can be obtained in cooperation with the brace 2.

  As shown in FIG. 2, the downward projecting dimension of the brace connecting arm portion 7 is such that the vertical distance H from the mounting pieces 4A, 4B to the brace 2 is the beam 15 in which the brace 2 is provided inside the room. What is necessary is just to set according to the condition of the place which installs the bracing coupler 1 for fire-fighting so that it may be in the range which does not interfere with any of the lower surface of this and the upper surface of the field edge 19 which fixes the ceiling decorative board 18 in the room.

  Next, FIG. 7 is a perspective view of the brazing and bracing connector in the second embodiment of the present invention, FIG. 8 is a longitudinal sectional view thereof, in the brazing and bracing connector 1A shown in these drawings, 3 and 6 are the same as the members used in the above-described fire and brace connector 1.

  In this brazing joint brace connector 1A, a steel right-angled isosceles triangular support plate 6 'is connected to a corner 6 at a right-angled corner where the horizontal pieces a of the mounting pieces 4A and 4B are welded. Align 'A' and weld the hypotenuses on both sides to the edges of the horizontal pieces a of the opposing mounting pieces 4A and 4B so that the upper surface of the support plate 6 'and the upper surfaces of the horizontal pieces a on both sides are at the same level. These are fixed between the mounting pieces 4A and 4B.

  Further, as shown in FIG. 8, the support plate 6 ′ is welded to the lower surface of the striking member 5 and the upper surface of the support plate 6 ′ with the edge of the base 6′B aligned with the outer side surface of the striking member 5. ing. In the present embodiment, the thickness of the support plate 6 'is equal to the thickness of the horizontal piece a of the angle steel used for the mounting pieces 4A and 4B, and a thickness of 6 mm is used. .

  As described above, since the support plate 6 ′ is welded to both the attachment pieces 4 A and 4 B and the fire striking member 5 on the both sides, the fire striking brace coupler 1 A acts from the brace 2 to the brace coupling arm portion 7. The bending deformation of the support plate 6 ′ due to the bending moment to be prevented can be prevented, and the rigidity and strength can be further increased as compared with the above-described brazing and bracing coupler 1.

  Next, FIG. 9 is a perspective view of the brazing and bracing connector according to the third embodiment of the present invention as seen obliquely from below, and FIG. 10 is a longitudinal sectional view of the brazing and bracing shown in these drawings. In the connector 1B, the members denoted by the same reference numerals as those in FIGS. 7 and 8 are the same as the members used in the above-described bracing and bracing connector 1A.

  As shown in FIG. 9, the bracing and bracing connector 1B according to this embodiment is installed with the vertical piece b facing downward with respect to the horizontal pieces a of the mounting pieces 4A and 4B. In the state where the portion excluding the brace connecting arm portion 7 from the above-described combined use of bracing and brace 1A is turned upside down, the brace connecting arm portion 7 ′ is detachably attached to the lower surface of the support plate 6 ′. It is a bolt connection.

  In this embodiment, as shown in FIG. 10, the brace connecting arm portion 7 ′ is integrally formed by bending a steel strip having a constant width into a substantially Z shape when viewed from the side. A (first horizontal portion), horizontal portion 7'B (second horizontal portion) and a relay portion 7'C that connects the upper and lower portions of the horizontal portion 7'B, and braces on the lower surface of the horizontal portion 7'B The structure in which one end of 2 is connected and fixed by a bolt 12 and a nut 13 is the same as that of the brace connecting arm portion 7 of the above-described brazing and bracing connector 1, 1A.

  However, in the brace connecting arm portion 7 ′ of the combined bracing tool 1B, the horizontal portion 7′A is not welded to the lower surface of the support plate 6 ′, and the upper and lower horizontal portions 7′A and 7′B are not welded. As shown in FIG. 11, on the upper sides of the pair of steel side plates 7′D welded to the edges on both sides in the width direction of the steel strip on which the relay portion 7′C is formed, A mounting ear portion 7'E formed by being bent at a right angle is continuously provided.

Bolt holes h <b> 3 are formed in these attachment ear portions 7 ′ E at three locations. On the other hand, bolt holes (not shown) are formed in the support plate 6 ′ at positions corresponding to the bolt holes h3, respectively, and the bolt holes h3 of the respective mounting ears 7′E and the support plates are formed. The brace connecting arm portion 7 ′ is attached to the lower surface of the support plate 6 ′ by aligning the bolt holes on the 6 ′ side, penetrating the bolt 20 therebetween, and fixing with the nut 21 from the opposite side.
In the present embodiment, high-tensile bolts are used for these bolts 20 and high-strength nuts 21 are also used.

  With such a structure, when carrying in and storing the bracing / brace coupler 1B at the installation site, the carrying-in work is facilitated by removing the brace coupling arm portion 7 'from the support plate 6'. At the same time, it is possible to save space for storage.

  Furthermore, by producing a plurality of types of brace connecting arms with different vertical dimensions, the remaining parts are manufactured in common with the same specifications, and by combining them appropriately, like the beam 15 shown in FIG. When the brace 2 is passed under the beam existing inside the room, it is possible to flexibly cope with various types of wooden houses having different heights on the lower surface of the beam.

  Further, when performing the installation work of the brace and brace connector 1B, as shown in FIG. 9, the coach bolt 8 is in a position where it can be tightened from the lower indoor side, so that the workability of the installation work can be improved. it can.

  Furthermore, although description of embodiment by illustration is abbreviate | omitted, also in the brazing / brace coupling tool 1 demonstrated previously based on FIG. 1 thru | or FIG. The mounting pieces 4A and 4B are set in a posture in which the vertical piece b is directed downward with respect to the horizontal piece a, and the brace coupling portion 7 is placed on the lower surface of the support plate 6 in this posture. For example, the upper end may be welded as shown in FIG. 6 or may be fixed with a bolt so as to be disassembled as shown in FIG.

Further, FIG. 12 is a perspective view of the brazing and bracing connector according to the fourth embodiment of the present invention as seen obliquely from below, FIG. 13 is a perspective view showing its installation state, and FIG. 14 is a longitudinal sectional view thereof. In addition, the fire-braking combined brace connector 1C shown in these drawings is obtained by further adding a gusset plate 22 made of steel plate to the above-described fire-braking combined brace connector 1B.
12 to 14, members denoted by the same reference numerals as those in FIGS. 9 and 10 are the same as those used in the above-described brazing / brace coupler 1 </ b> B.

  The gusset plate 22 is composed of a pair of steel plates 22A and 22B that are connected to each other at right angles. As shown in FIG. The upper end portion of each corner v is matched with the corner portion c between the vertical pieces b of the pair of attachment pieces 4A and 4B that are welded to each other, and the vicinity of the upper edge of the outer surface of each steel plate corresponds to Are welded to the inner side surface of each vertical piece b.

  Here, the gusset plate 22 is manufactured by bending the center of one rectangular steel plate at a right angle, but is manufactured by welding the individual steel plates 22A and 22B at a right angle. A thing may be used.

  Further, as shown in FIG. 12, in the present embodiment, the portions near the upper edges of the pair of steel plates 22A and 22B constituting the gusset plate 22 are respectively hidden at positions hidden by these steel plates 22A and 22B. A mounting hole h4 is formed at a position overlapping with the mounting hole h1 of a certain mounting piece 4A, 4B, and the coach bolt 8 can be mounted from above the gusset plate 22 through these mounting holes h4 as shown in FIG. It is.

  Further, in the vicinity of the lower edge of each of the steel plates 22A and 22B constituting the gusset plate 22, a plurality of mounting holes h5 for connecting the ends of the reinforcing bars 23 and 24 shown in FIG. Has been.

  In the present embodiment, these reinforcing bars 23 and 24 are made of rectangular steel pipes, and are installed in parallel below the trunk differences 10 and 11 arranged vertically and horizontally around the upper part of the room. Has been.

  Further, these reinforcing bars 23 and 24 are provided in the axial direction acting on the trunk differences 10 and 11 from the brazing joint device 1C for receiving a tensile load of the brace 2 (shown in FIG. 14) installed in the diagonal direction of the room. By sharing a part of the compression load through the gusset plate 22, when excessive tension is applied to the brace 2 at the time of an earthquake or the like, the load on the trunk difference 10, 11 is reduced and the bending Distortion can be prevented.

  As shown in FIG. 15, an attachment hole h6 that overlaps with the attachment hole h5 on the gusset plate 22 side is formed on the side walls of the end portions of these reinforcing bars 23 and 24 adjacent to the inner surface of the gusset plate 22. The reinforcement bars 23 and 24 are fixed to the gusset plate 22 by screwing the bolts 26 through the attachment holes h6 and h5 and screwing the bolts 26 to the nuts 27 on the outer surface of the gusset plate 22.

  In addition, the part facing the side wall which passes the bolt 25 of both ends of these reinforcement bars 23 and 24 is cut | disconnected largely diagonally, and the opening part is formed from the opening | wearing, fastening, etc. of this bolt from this opening part. You can work.

Moreover, as shown in FIG. 13, the intermediate part of these auxiliary | assistant bars 23 and 24 is connected with the pillar 9 'arrange | positioned at the side surface of the room through the connection metal fitting 25 made from a steel plate.
As shown in FIG. 16, the connecting hardware 25 has a pair of column mounting pieces 25 </ b> B that are bent on the same side from two perpendicular sides of the rectangular plate-like connection piece 25 </ b> A, and It has a pair of reinforcing bar mounting pieces 25C, which are welded horizontally on the opposite surface in two upper and lower stages.

  The pair of column mounting pieces 25B are respectively formed with mounting holes h7 at two locations on the top and bottom, and mounting holes h8 are formed at the center of each of the pair of reinforcing bar mounting pieces 25C.

  The facing distance between the pair of column mounting pieces 25B is set to match the width of the column 9 ', and the facing distance between the pair of reinforcing bar mounting pieces 25C matches the vertical width of the reinforcing bars 23 and 24. As shown in FIG. 17, the pair of column mounting pieces 25B and the connecting piece 25 are brought into contact with the three side surfaces of the column 9 ', and the coach bolt 28 is inserted into the mounting hole h7. The connecting hardware 25 is fixed to the column 9 ′ by screwing into the column 9 ′.

  Further, as shown in the figure, a reinforcing bar 23 is supported between a pair of reinforcing bar mounting pieces 25C, and bolts 29 are reinforced from both the upper and lower sides in the respective mounting holes h8 of these reinforcing bar mounting pieces 25C. The reinforcing bar 23 and the column 9 ′ are integrally connected by being screwed into a screw hole (not shown) formed in advance on the upper and lower side surfaces of the bar 23 and fixed.

  Further, although detailed illustration is omitted here, the reinforcing bar 24 is also integrally connected to the column 9 'in the same manner. In addition, normal holes may be formed on the reinforcing bars 23 and 24 instead of screw holes, and the bolts 29 may be fixed using tapping bolts.

  Further, in order to cope with variations in manufacturing errors and installation positions of the gusset plate 22 and the reinforcing bars 23, 24, either the mounting hole h5 of the gusset plate or the mounting hole h6 of the reinforcing bars 23, 24 is arranged in the horizontal direction. It may be formed in a long long hole so that the mounting position of the reinforcing bars 23 and 24 can be adjusted in the axial direction.

  Similarly, in the connection hardware 25, the mounting hole h7 is a vertically long hole so that the mounting position with respect to the column 9 'can be adjusted vertically, or the mounting holes h8 are horizontally long and the longitudinal lengths of the reinforcing bars 23, 24 are set. The fixed position may be adjusted in the direction.

  Furthermore, the brace connecting arm portions 7 and 7 'in each of the above-described embodiments are bands having a constant width that are bent in a substantially Z-shape when viewed from the side, as shown in FIGS. 6, 8, 10, and 14. It is manufactured by welding a pair of steel side plates 7D and 7'D to the edges on both sides in the width direction of the steel, but the brace connecting arm portion in the present invention is limited to such a structure. Rather, it has a horizontal part in which a bolt hole for connecting the end of the brace is bolted to at least the lower end, and has strength and rigidity that can withstand bending moments around the horizontal axis and torsional moments around the vertical axis. Anything provided is sufficient.

  Further, in each of the above-described embodiments, the brace 2 that is connected to these brazing and bracing couplers 1, 1A, 1B, and 1C is made of a flat steel having a rectangular cross section that is flat vertically. However, the brace connected to the brazing and bracing connector of the present invention is not limited to this, and for example, a round bar-like brace such as a rebar brace having an end that can be bolted to the brace connecting arm is used. It may be used.

  The brace / brace coupler of the present invention can be widely used regardless of whether it is an existing construction or a new construction when a brace is provided to a wooden house in the diagonal direction of the room to perform seismic reinforcement.

DESCRIPTION OF SYMBOLS 1, 1A, 1B, 1C Bracket combination tool 2 for brazing 2 Brace 2A Mounting hole 2B Screw rod 3 Connecting ring 4A, 4B Mounting piece 5 Firing member 6, 6 'Support plate 6A, 6'A Corner | angular part 6'B Bottom part 7 7 ', 7'A (first) horizontal portion 7B, 7'B (second) horizontal portion 7C, 7'C Relay portion 7D, 7'D Side plate 7'E Mounting ear portion 8 Coach bolts 9 and 9 'Pillars 10 and 11 Body difference 12 Bolts 13 Nuts 14 Double nuts 15 Beams 16 Floor material 17 joists 18 Ceiling decorative panels 19 Field edges 20 Bolts 21 Nuts 22 Gusset plates 22A and 22B Steel plates 23 and 24 Reinforcing bars 25 Connecting hardware 25A Connecting piece 25B Column mounting piece 25C Reinforcing bar mounting piece 26 Bolt 27 Nut 28 Coach bolt 29 Bolt a Horizontal piece b Vertical piece c Corner h1 to h8 Mounting hole v Corner

Claims (7)

The mounting holes are formed in a plurality of locations on the vertical piece along the longitudinal direction, respectively, and the end faces of the horizontal pieces at one end that are cut obliquely are faced to each other and welded into a substantially L shape in plan view. A pair of mounting pieces made of angle steel, which are connected at right angles and installed with the vertical pieces facing upward,
The bottom surface of both ends and the two end surfaces are welded to the upper surface of the opposing horizontal piece and the inner side surface of the vertical piece at a position near the other end of both of these mounting pieces, and the cross section is flattened vertically A striking member made of a square steel pipe,
It is formed in a right-angled isosceles triangle shape, the corners perpendicular to the corners where the mounting pieces are welded at right angles are aligned, and the upper surface is welded to the lower surface of the horizontal pieces of the mounting pieces on both sides near each hypotenuse. A steel support plate,
A fire-brace combined brace comprising a steel brace connecting arm portion having a horizontal portion in which an upper end is fixed to a lower surface of the support plate and a bolt hole for connecting an end portion of the brace is formed at a lower end. Coupling tool. The mounting holes are formed in a plurality of locations on the vertical piece along the longitudinal direction, respectively, and the end faces of the horizontal pieces at one end that are cut obliquely are faced to each other and welded into a substantially L shape in plan view. A pair of mounting pieces made of angle steel, which are connected at right angles and installed with the vertical pieces facing upward,
The bottom surface of both ends and the two end surfaces are welded to the upper surface of the opposing horizontal piece and the inner side surface of the vertical piece at a position near the other end of both of these mounting pieces, and the cross section is flattened vertically A striking member made of a square steel pipe,
It is formed in a right-angled isosceles triangle shape, the corners are aligned with the right-angled corners where the horizontal pieces of the respective mounting pieces are welded, and the respective hypotenuses are welded to the edges of the horizontal pieces of the mounting pieces on both sides. And a steel support plate whose upper surface near the bottom is welded to the lower surface of the fire striking member;
A fire-brace combined brace comprising a steel brace connecting arm portion having a horizontal portion in which an upper end is fixed to a lower surface of the support plate and a bolt hole for connecting an end portion of the brace is formed at a lower end. Coupling tool. The mounting holes are formed in a plurality of locations on the vertical piece along the longitudinal direction, respectively, and the end faces of the horizontal pieces at one end that are cut obliquely are faced to each other and welded into a substantially L shape in plan view. A pair of mounting pieces made of angle steel, which are connected at right angles and installed with the vertical pieces facing downward,
The upper surface and both end surfaces of both ends are welded to the lower surface of the opposing horizontal piece and the inner side surface of the vertical piece, respectively, at a position near the other end of both of these mounting pieces, and the cross section is flattened vertically A striking member made of a square steel pipe,
It is formed in a right-angled isosceles triangle shape, the corners perpendicular to the corners where the mounting pieces are welded at right angles are aligned, and the lower surface is welded to the upper surface of the horizontal pieces of the mounting pieces on both sides near each hypotenuse. A steel support plate,
A fire-brace combined brace comprising a steel brace connecting arm portion having a horizontal portion in which an upper end is fixed to a lower surface of the support plate and a bolt hole for connecting an end portion of the brace is formed at a lower end. Coupling tool. The mounting holes are formed in a plurality of locations on the vertical piece along the longitudinal direction, respectively, and the end faces of the horizontal pieces at one end that are cut obliquely are faced to each other and welded into a substantially L shape in plan view. A pair of mounting pieces made of angle steel, which are connected at right angles and installed with the vertical pieces facing downward,
The upper surface and both end surfaces of both ends are welded to the lower surface of the opposing horizontal piece and the inner side surface of the vertical piece, respectively, at a position near the other end of both of these mounting pieces, and the cross section is flattened vertically A striking member made of a square steel pipe,
It is formed in a right-angled isosceles triangle shape, the corners are aligned with the right-angled corners where the horizontal pieces of the respective mounting pieces are welded, and the respective hypotenuses are welded to the edges of the horizontal pieces of the mounting pieces on both sides. And a steel support plate whose lower surface near the bottom is welded to the upper surface of the fire striking member,
A fire-brace combined brace comprising a steel brace connecting arm portion having a horizontal portion in which an upper end is fixed to a lower surface of the support plate and a bolt hole for connecting an end portion of the brace is formed at a lower end. Coupling tool.   A vertical piece of a pair of mounting pieces that are composed of a pair of steel plates that are connected to each other at right angles, and are welded to each other at the upper ends of the right-angled corners on the outside in a vertically oriented L-shape in plan view. The upper edge vicinity part of the outer surface of each steel sheet is welded to the inner side surface of each corresponding vertical piece, and the lower edge vicinity part of each steel sheet is aligned with the corners of each other. 5. The combined bracing for brazing according to claim 3, further comprising a gusset plate in which a mounting hole is formed for bolting a reinforcing bar arranged in parallel below the trunk difference. Ingredients.   The bracing / brace coupling device according to any one of claims 1 to 5, wherein the brace coupling arm portion is bolted to the support plate so as to be disassembled. The brace connecting arm portion is formed by aligning a longitudinal center line with a bisector of a right-angled corner portion of the support plate, and a first horizontal portion disposed on a lower surface of the brace connecting arm portion and a bottom side of the support plate of the horizontal portion. A relay portion bent downward by a predetermined length from the end of the relay portion, a second portion horizontally bent from the lower end of the relay portion to the opposite side of the first horizontal portion, and having a mounting hole for bolting the brace on the lower surface. A steel strip of a certain width that is bent in a substantially Z-shape in side view consisting of a horizontal portion of
A pair of at least two parallel sides respectively corresponding to the first horizontal part and the second horizontal part, which are welded to the edges on both sides in the width direction with the band steel in between. The brazing / brace coupling device according to any one of claims 1 to 6, wherein the brazing / combination connecting device is made of a steel side plate.

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