JP6283443B1 - Architectural connector, building forming unit, and building - Google Patents

Abstract

An object of the present invention is to provide a building connecting tool that can easily manufacture a building forming unit in a factory, can manufacture the entire building forming unit robustly, and does not break a connecting portion between a column member and a beam member. Moreover, the building formation unit and building using the connecting tool for building are provided. A board 32 for closely attaching a building connector 10 to a pillar member, two engagement plates 34 engaging with an engagement groove of a beam member, a support plate 36 supporting a bottom surface of the beam member, And two side plates 38 that are in close contact with the side surface of the beam member. Moreover, the building formation unit is configured using the building connector 10, and the building is configured using the building formation unit. [Selection] Figure 1

Description

  The present invention relates to a building connector for connecting a second wood to a first wood, a building forming unit using the building connector, and a building using the building forming unit.

  2. Description of the Related Art Conventionally, wooden building forming units that have column members at four corners, connect both ends of beam members to the upper and lower ends of each column member, and form a cube as a whole (for example, patents) Reference 1). A plurality of wooden building forming units can be manufactured at a factory and combined with each other at a construction site to form a wooden house (building).

  In order to improve work efficiency in the factory, it is necessary to facilitate the manufacture of the building forming unit. Moreover, since the building forming unit itself constitutes a room or the like and is not reinforced at the construction site, it is necessary to manufacture it firmly in the factory. In particular, it is necessary to prevent the connecting portion between the column member and the beam member where stress is concentrated from being damaged.

Japanese Patent No. 438685

  The invention of the present application provides an architectural connector that can easily manufacture a building forming unit in a factory, can manufacture the entire building forming unit stubbornly, and does not break the connecting portion between the column member and the beam member. With the goal. Moreover, it aims at providing the unit for building formation and the building which used the connector for construction.

The architectural connector of the present invention is
On the side of the first wood having a side,
A second wood that extends in the form of a bar in the transverse direction, has two end faces in the transverse direction, two side faces, and one bottom face, and is provided with two engaging grooves that are perpendicular to the end faces and parallel to the two side faces. A construction connector for fixing the one end face of
A substrate having an outer side surface, the outer side surface being in close contact with the side surface of the first wood;
Substrate fixing means for fixing the substrate to the side surface of the first wood;
Two engagement plates that are integrally formed perpendicular to the substrate and inserted into the two engagement grooves of the second wood,
Engagement plate fixing means for fixing the two engagement plates to the second wood;
A support plate that is perpendicular to the substrate and the engagement plate and supports the bottom surface of the second wood;
Two side plates that are integral with the support plate, perpendicular to the support plate, parallel to the two engagement plates, and in contact with the side surface of the second wood;
Side plate fixing means for fixing the side plate to the second wood;
Only including,
The side plate fixing means is provided in the two engagement plates and the two side plates, and is a hole through which one bolt passes, and a female screw is provided only in the hole of the one side plate. To do.
In the construction connector, the first wood is a column member, and the second wood is a beam member.
The building forming unit of the present invention has four column members having an upper end, a lower end and side surfaces, two end surfaces, two side surfaces and one bottom surface, and the two end surfaces are the upper ends of the four column members. The four beam members connected to each other, the four beam members having two end faces and the two end faces connected to the lower ends of the four column members, and the building connector, Unit for
At least one of the beam members is provided with two engaging grooves along one end face in parallel, and the building forming unit is connected to the pillar member using the building connector. .
The building of the present invention is characterized in that at least one of the building forming units is incorporated.

  According to the construction connector of the present invention, since the support plate for supporting the lower surface of the second wood is provided, the substrate is fixed to the first wood, and the second wood is supported on the support plate. The operation | work which fixes a 2nd wood to the 1st wood, such as driving a pin into the 2nd wood and the connection tool for construction, can be performed. For this reason, there is no need to hold the second timber when the second timber is fixed to the first timber to which the building coupler is fixed, and the building forming unit is manufactured by fixing the second timber to the first timber. The work to do is easy.

  Moreover, according to the construction connector of the present invention, the fixed state of the first wood and the second wood can be firmly maintained by the support plate in the vertical direction and by the side plate in the horizontal direction. For this reason, while being able to manufacture the whole building formation unit firmly, the connection part of a column member and a beam member is not damaged.

It is a perspective view which shows the connector for construction which concerns on this invention. It is a perspective view which shows the unit for building formation which uses the coupling tool of FIG. It is an expanded view of the connector for construction of FIG. It is a side view which shows the state which fixed the connection tool for construction of FIG. 1 to the pillar member. It is a perspective view which shows the use condition of the connection tool of FIG. 1, The figure (a) is a figure which shows the state which attaches a beam member to a connection tool for construction, The figure (b) is a beam member for construction. It is a figure which shows the state attached to the coupling tool. It is front sectional drawing of the connection tool for construction of FIG. It is front sectional drawing which shows the use condition of the connector for construction of FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a front enlarged view which shows the state which forms a house using the connector for building of this invention and the unit for building formation, The figure (a) is a figure which shows the state which engages a pillar member with an engagement pin. FIG. 6B is a diagram showing a state in which adjacent column members are fixed. It is a front view which shows the state which forms a house using the connector for building of this invention and the unit for building formation. It is an expanded view which shows other embodiment of the unit for building formation of this invention. It is a perspective view which shows other embodiment of the unit for building formation of this invention. It is a perspective view which shows the use condition of the connector for construction of other embodiments, the figure (a) is a figure showing the state which attaches a beam member to a connector for construction, and the figure (b) shows the beam member. It is a figure which shows the state attached to the connection tool for construction.

  Next, an embodiment of the present invention will be described in detail based on the drawings. In FIG. 1, the code | symbol 10 shows the connector for building which concerns on this invention, and the code | symbol 12 in FIG. 2 shows the unit for building formation which uses the connector 10 for building.

(Structure of construction connector)
The construction connector 10 is for connecting and fixing the second wood to the first wood. Hereinafter, the construction connector 10 for connecting and fixing the beam member 18 (second wood) to the column member 14 (first wood) will be described. As shown in FIGS. 1 and 5, the building connector 10 includes a substrate 32 having an outer surface 33 that is in close contact with the side surface 20 of the column member 14, and an engagement groove 30 (see FIG. 5) provided in the beam member 18. 2), two support plates 36 that support the bottom surface 28 of the beam member 18, and two side plates 38 that are in close contact with the side surface 26 of the beam member 18. The configuration of the column member 14 and the beam member 18 will be described in the description of the building forming unit 12.

  Further, as shown in FIGS. 1 and 5, the building connector 10 is driven by a board fixing hole (board fixing means) 42 for fixing the board 32 to the column member 14 by a bolt 65 and a nut 67 and a pin 62. An engagement plate fixing hole (engagement hole fixing means) 44 for fixing the two engagement plates 34 to the beam member 18, an engagement plate fixing hole (engagement hole fixing means) 45 having an open top, and a bolt 56 are inserted and screwed. And a side plate fixing hole (side plate fixing means) 46 for fixing the side plate 38 to the beam member 18. Four substrate fixing holes 42 are provided in the substrate 32. Five engagement plate fixing holes 44 are provided in each of the two engagement plates 34, and one engagement plate fixing hole 44 is provided in each of the two engagement plates 34. One side plate fixing hole 46 is provided for each of the two engagement plates 34, and one side plate fixing hole 46 is provided for each of the two side plates 38.

  The side plate fixing hole 46 is provided with a female screw 47 in one side plate fixing hole 46 so that a bolt 56 (shown in FIG. 7) can be screwed therein. For example, as shown in FIG. 6, a female screw is provided only in one side plate fixing hole 46 of the side plate fixing holes 46 of the two side plates 38. The side plate fixing holes 46 other than the one side plate fixing hole 46 are configured to have dimensions that allow the bolts 56 to pass therethrough. The effect obtained by forming the female screw only in one side plate fixing hole 46 will be described later in the description of the building forming unit 12.

  As shown in FIG. 1, the substrate 32 and the two engagement plates 34 are integrally formed to form a U-shaped cross section. The support plate 36 is configured integrally with the substrate 32 and is perpendicular to the substrate 32 and the engagement plate 34. The two side plates 38 are formed integrally with the support plate 36, except for the vicinity of the end portion 58, parallel to the engagement plate 34 and parallel to the substrate 32 and the support plate 36. The two side plates 38 have an end portion 58 and a curved tapered portion 35 that is separated from the engagement plate 34 toward the end portion 58. The taper portion 35 may be a flat plate or the like instead of a curved shape, as long as the taper portion 35 is separated from the engagement plate 34 toward the end portion 58. The effect of the taper part 35 will be described in the description of the building forming unit 12 later.

  As shown in FIG. 4, the pillar member 14 side to which the construction connector 10 is attached in the support plate 36 has a tapered portion 52 (separation portion), and the pillar to which the construction connector 10 is attached in the side plate 38. The member 14 side has a tapered portion 54 (separating portion) continuous to the tapered portion 52. The tapered portion 52 and the tapered portion 54 are configured at an angle at which the side plates 38 of the two building couplers 10 do not interfere with each other in the assembly portion 11 (shown in FIG. 2) where the two building couplers 10 gather. The In order to prevent the side plates 38 of the two building couplers 10 from interfering with each other in the gathering portion 11, one side of the pillar member 14 to which the building coupler 10 is attached in the support plate 36 and the side plate 38. One side of the column member 14 side to which the fixture 10 is attached may be shifted in parallel to the side opposite to the column member 14 side to which the building connector 10 is attached.

(Formation of building couplers)
In order to form the building connector 10, a metal base 40 shown in FIG. 3 formed by cutting is prepared. In FIG. 3, a substrate forming portion that forms the substrate 32 is denoted by reference numeral 33, an engagement plate forming portion that forms the engagement plate 34 is denoted by reference numeral 35, and a support plate forming portion that forms the support plate 36 is denoted by reference numeral 37 A side plate forming portion for forming the side plate 38 is denoted by reference numeral 39. Four substrate fixing holes 42 are formed in the substrate forming portion 33 by cutting. In the two engagement plate forming portions 35, five engagement plate fixing holes 44 are formed by cutting, and one engagement plate fixing hole 45 having an open top is formed by cutting. One side plate fixing hole 46 is formed in each of the two side plate forming portions 39 by cutting, and one side plate fixing hole 46 is formed in each of the two engaging plate forming portions 35 by cutting. A female screw 47 is formed in one side plate fixing hole 46 by screw cutting.

  In the base material 40 shown in FIG. 3, the taper part 52 is provided in the part except the bending line L2 by the side of the board | substrate formation part 33 in the support plate formation part 37. As shown in FIG. A tapered portion 54 that is continuous with the tapered portion 52 is provided on the side plate forming portion 39 on the engagement plate forming portion 35 side. In order to facilitate cutting, the tapered portions 52 and 54 may be separated from the engagement plate forming portion 39 as shown in FIG.

  Next, folding lines L1 (boundary lines between the substrate forming portion 33 and the engagement plate forming portion 35), L2 (boundary lines between the substrate forming portion 33 and the support plate forming portion 37), and L3 (shown by broken lines in FIG. 3) In the order of the boundary line between the support plate forming portion 37 and the side plate forming portion 39), the plate is folded into vertical valley folds. The contact portion between the engagement plate 34 formed from the engagement plate forming portion 35 and the support plate 36 formed from the support plate forming portion 37 may be welded.

(Building unit)
As shown in FIGS. 2 and 5, the building forming unit 12 uses the building connector 10 and the beam member 18 (functions as the second wood) on the pillar member 14 (functions as the first wood). ), The beam member 16 (functions as the second wood) on the column member 14 (functions as the first wood), and the beam member 18 (functions as the second wood) on the beam member 16 (functions as the first wood). ) Are connected to each other.

Hereinafter, the case where the column member 14 (shown in FIG. 2) functions as the first wood and the beam member 18 (shown in FIG. 2) functions as the second wood will be described. As shown in FIG. 2, the column member 14 has a side surface 20. The beam member 18 extends in a bar shape in the lateral direction, and has end surfaces 24, two side surfaces 26, and one bottom surface 28 at both ends in the lateral direction, and is parallel to the longitudinal direction along the end surface 24 as shown in FIG. Two engagement grooves 30 are provided. The vicinity of the end surface 24 of the beam member 18 is divided into one intermediate divided portion 48 and two outer divided portions 50 by providing two engaging grooves 30. The intermediate dividing portion 48 is provided to be a recess with respect to the end surface 24 so that the bolt 65 (shown in FIG. 5A) and the nut 67 (shown in FIG. 5B) do not interfere with each other. The width of the engagement groove 30 is slightly wider than the thickness of the engagement plate 34, and the depth is formed slightly longer than the width dimension of the engagement plate 34. A portion of the side surface 26 of the beam member 18 that contacts the side plate 38 may be a recess. The building forming unit 12 can be formed so that the end portion 58 of the side plate 38 is flush with the side surface 20 of the column member 14, which is preferable in terms of appearance.

  A bolt hole (not shown) is provided on the side surface 20 of the column member 14 at a position corresponding to the board fixing hole 42 of the building connector 10 to be connected. A bolt hole (not shown) is provided on the side surface 22 of the intermediate portion of the beam member 16 at a position corresponding to the board fixing hole 42 of the building connector 10 to be connected. Near both ends of the side surfaces 26 of the beam members 18 and 16, pin holes 60 (shown in FIG. 5A) are provided at positions corresponding to the engagement plate fixing holes 44 of the building connector 10 to be connected. The side surface of the beam member 18 is provided with a bolt hole 64 (shown in FIG. 5A) at a position corresponding to the side plate fixing hole 46 of the building connector 10 to be connected.

  The effect | action which connects the beam member 18 to the column member 14 is demonstrated below. Unless otherwise specified, the description will be made in chronological order. As shown in FIG. 5 (a), a bolt 65 is passed through a bolt hole (not shown) of the column member 14 provided corresponding to the plurality of board fixing holes 42 of the board 32 of the building connector 10. The board fixing hole 42 of the building connector 10 is engaged with the passed bolt 65. As shown in FIG. 5B, a nut 67 is screwed onto the bolt 65, and the building connector 10 is fixed to the column member 14.

The pin 62 is driven so as to penetrate only into the uppermost pin hole 60 of the beam member 18. The beam member 18 is engaged from above the construction coupler 10 fixed to the column member 14, the intermediate divided portion 48 is sandwiched between the two engaging plates 34, and the outer divided portion 50 is connected to the engaging plate 34. It is sandwiched between the side plates 38. The pin 62 driven into the uppermost pin hole 60 of the beam member 18 is engaged with the engagement plate fixing hole 45 from above. As a result, the plurality of engagement plate fixing holes 44 provided in the engagement plate 34 of the building connector 10 and the pin holes 60 formed in the beam member 18 are positioned. Since the vicinity of the end portion 58 of the side plate 38 is curved so as to be separated from the engagement plate 34 as it goes to the end portion 58, the outer side division portion 50 is sandwiched between the engagement plate 34 and the side plate 38. Is not caught by the side plate 38, and the outer divided portion 50 can be easily inserted between the engagement plate 34 and the side plate 38. The bottom surface 28 of the beam member 18 is supported on a support plate 36.

  Next, as shown in FIG. 7, the pin 62 is driven into the pin hole 60 (other than the top) of the beam member 18 and the engagement plate fixing hole 44 of the building connector 10. Bolts 56 are passed through the bolt holes 64 of the beam member 18 and the side plate fixing holes 46 of the building connector 10. The bolt 56 is provided with a male screw near the tip. Since the female screw 47 is provided only in one side plate fixing hole 46 in FIG. 7 in the four side plate fixing holes 46, the bolt 56 is screwed into only one side plate fixing hole 46. For this reason, the bolt 56 is easily and quickly screwed in. The bolt 56 having a dimension that is flush with the outer surface of the side plate 38 is used as the front end surface 66 of the bolt 56. For this reason, in the building forming unit 12 or the building to be formed, it is possible to prevent interference with other building connectors 10 or other members such as wood as much as possible. In addition, in the building forming unit 12 or the building to be formed, it is preferable in terms of appearance if the outer surface side where the front end surface 66 is flush with the side plate 38 is made to be a side that can be easily touched by human eyes. In addition, it is preferable in terms of appearance if the outer surface of the side plate 38 and the front end surface 66 and the side surface 20 of the column member 14 are flush with each other on the outer surface side that is easily touched by human eyes. One side plate fixing hole 46 provided with the female screw 47 is selected from the left and right in FIG. 7 among the four side plate fixing holes 46 in accordance with prevention of interference with other members or appearance. Moreover, since the front end surface 66 is flush with the outer surface of the side plate 38, the front end surface 66 is not caught by an operator or the like.

  As described above, the beam member 18 is fixed to the construction connector 10 fixed to the column member 14, and thereby the beam member 18 is fixed to the column member 14. The work of fixing the beam member 18 to the column member 14 is performed at the upper and lower ends of the four column members 14 and is performed in a total of eight places. As shown in FIG. 2, the beam member 16 is fixed to the column member 14 by using the construction connector 10 in the same manner as the beam member 18 is fixed to the column member 14. The operation of fixing the beam member 16 to the column member 14 is performed at the upper and lower ends of the four column members, and is performed at a total of eight locations. As shown in FIG. 2, the beam member 18 is fixed to the intermediate portion of the beam member 16 by using the construction connector 10 in the same manner as the beam member 18 is fixed to the column member 14. The operation of fixing the beam member 18 to the intermediate portion of the beam member 16 is performed in the intermediate portion of the four beam members 16 and is performed in a total of four places.

  As described above, the beam member 18 is fixed to the column member 14, the beam member 16 is fixed to the column member 14, and the beam member 18 is fixed to the beam member 16. Thereby, the unit 12 for building formation shown in FIG. 2 of a rectangular parallelepiped as a whole is formed.

(Building)
The case where a building (building) is formed using the building forming unit 12 will be described below. In the factory, a plurality of building forming units 12 are manufactured. The building forming unit 12 is manufactured in various sizes according to the structure and dimensions of the house. The manufactured plurality of building forming units 12 are transported to a building site by a truck or the like.

  At the construction site, as shown in FIG. 8, a foundation 70 is installed on a foundation 68. At the building site, a plurality of building forming units 12 are installed on the base 70. An example of a method for installing the plurality of building forming units 12 on the base 70 is shown below. For example, in a construction site, as shown in FIGS. 8 and 9A, an engagement pin 72 having a pin hole 74 provided near the upper end is suspended from a base 70 of a foundation 68. In this case, in the factory, a bottom surface hole (not shown) is provided on the bottom surface of the column member 14 of the building forming unit 12, and a pin hole 76 is provided at a position corresponding to the pin hole 74 near the bottom of the column member 14. Is provided. As shown in FIG. 9A, the lower surface hole of the bottom surface of the column member 14 is engaged with the engagement pin 72 from above, and the pin 78 is driven into the pin hole 76 and the pin hole 74 in the lateral direction, thereby allowing a plurality of holes. The building forming unit 12 is installed on the base 70.

  Among the plurality of adjacent building forming units 12 installed on the base 70, the building forming units 12 are connected to each other by, for example, a bolt near the upper end of the column member 14 of each building forming unit 12 in a factory. As shown in FIG. 9 (b), a rectangular flat metal fitting 82 provided with a hole 80 and a bolt hole (not shown) is attached to the column member 14 of two adjacent building forming units 12. This is done by fixing with bolts 84 and nuts (not shown). In a house having two floors, the building forming units 12 are stacked in the vertical direction and connected by engagement pins 72 or the like. In this way, houses using the building forming unit 12 are formed.

(Effect of the present invention)

  According to the building connector 10 of the present invention, since the support plate 36 that supports the bottom surface 28 of the beam member 18 or 16 is provided, the beam member 18 and the like are supported on the support plate 36 in the state where the beam member 18 or the like is supported. The operation of driving the pins 62 into the 18 pin holes 60 and the engaging plate fixing holes 44 of the building connector 10 can be performed. For this reason, it is not necessary to hold the beam member 18 when the pin 62 is driven into the pin hole 60 or the like, and the building forming unit 12 can be manufactured simply by driving the pin 62 into the pin hole 60 or the like. It does not require skilled workers.

  According to the building connector 10 of the present invention, since the two side plates 38 brought into contact with the two side surfaces of the beam members 18 or 16 are provided, the beam member 18 and the like fixed to the building connector 10 are provided on the side plates. 38 and the vertical direction (perpendicular to the side surface 26 of the beam member 18 and the like). When the side plate 38 is not provided, in the direction perpendicular to the side surface 26 and the like of the beam member 18, the beam member 18 and the like are caused by a reaction force between the intermediate divided portion 48 or the outer divided portion 50 of the beam member 18 and the engagement plate 34. Is maintained so as not to shift with respect to the building connector 10. However, by providing the side plate 38, the beam member 18 and the like can be maintained more firmly so as not to be displaced with respect to the building connector 10.

  According to the building forming unit 12 and the house using the building connector 10, the fixed state of the column member 14 and the beam member 18 and the like is determined by the support plate 36 in the vertical direction and the side plate 38 in the horizontal direction. Can be maintained firmly. For this reason, the connection part of pillar member 14 grade | etc., And beam member 18 grade | etc., Is not damaged, and the robust building formation unit 12 and a house can be formed.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment. For example, in the building forming unit 12, as shown in FIG. 11, a pillar member 14 having an L-shaped cross section may be used at the corner. The structure of the building forming unit 12 shown in FIG. 11 is the same as that of the building forming unit 12 shown in FIG. 2 except that a pillar member 14 having an L-shaped cross section is used. Since the column member 14 having an L-shaped cross section has a larger sectional second moment than the column member 14 having a square cross section (shown in FIG. 2), the strength of the corner can be made more robust.

  Further, the dimensions of the building connector 10 and the number of the engagement plate fixing holes 44 are not limited. As shown in FIG. 12, the vertical dimension of the building connector 10 is half that of the building connector 10 shown in FIG. 1, and there are three engagement plate fixing holes 44 per one engagement plate 34. May be. The construction of the construction connector 10 shown in FIG. 12 is the same as that of FIG. 1 except that the vertical dimension is shorter and the number of engagement plate fixing holes 44 is smaller than that of the construction connector 10 of FIG. It is the same as the connector 10 for construction. In this case, the vertical width of the beam member 18 to be used corresponds to the vertical dimension of the building coupler 10 being half that of the building coupler 10 shown in FIG. Half of 18. By reducing the vertical width of the beam member 18, the space below the beam member 18 can be widened in the building forming unit 12.

  As mentioned above, although embodiment of this invention was described based on drawing, this invention is not limited to illustrated embodiment. It is not limited to using the building connector 10 in all of the connecting portions between the column members 14 or the beam members 16 and the beam members 18, and the connecting portions between the column members 14 and the beam members 16. The construction connector 10 may be used, and a conventional construction connector may be used in another connection portion. Further, the number of column members 14 used for one building forming unit 12 is not limited to four, and may be six or eight. The number of beam members 16 is not limited to four, and may be six or eight. The number of beam members 18 is not limited to six, and may be eight. The building forming unit may be a cube as a whole.

10: building connector 12: building forming unit 14: pillar member 16: beam member 18: beam member 20, 22: side surface 24: end surface 26: side surface 28: bottom surface 30: engagement groove 32: substrate 34: engagement Plywood 36: Support plate 38: Side plate 40: Base material 42: Substrate fixing hole (substrate fixing means)
44: engagement plate fixing hole (engagement plate fixing means)
46: Side plate fixing hole (side plate fixing means)
48: Intermediate divided part 50: Outer divided part 52, 54: Tapered part 58 End part 64 Bolt hole 65 Bolt 68 Base 70 Base

Claims (4)

A construction connector for fixing the second wood to the first wood;
Four column members having upper, lower and side surfaces;
Two engaging grooves extending in a lateral bar shape and having two end faces, two side faces and one bottom face at both ends in the transverse direction and parallel to the two side faces are provided along the two end faces, respectively. and four beam members coupled by the building coupling to the upper end of the side surface of the four said post member the two end faces,
Two engaging grooves extending in a lateral bar shape and having two end faces, two side faces and one bottom face at both ends in the transverse direction and parallel to the two side faces are provided along the two end faces, respectively. and four beam members coupled by the building coupling to the lower end of the side surface of the four said post member the two end faces,
A building forming unit comprising:
The architectural connector is
A substrate having an outer side surface and closely contacting the outer side surface to the side surface of the pillar member;
Substrate fixing means for fixing the substrate to the side surface of the pillar member;
Two engagement plates that are integrally formed perpendicular to the substrate and inserted into the two engagement grooves of the beam member;
Engagement plate fixing means for fixing the two engagement plates to the beam member;
A support plate that is perpendicular to the substrate and the engagement plate and supports the bottom surface of the beam member;
Two side plates that are integral with the support plate, perpendicular to the support plate, parallel to the two engagement plates, and in contact with the side surfaces of the beam member;
Side plate fixing means for fixing the side plate to the beam member;
Including
The side plate fixing means is
Four holes provided in the two engagement plates and the two side plates, through which one bolt is passed, and four holes in which female screws are provided only in the holes of the one side plate;
A bolt that is passed through the four holes and the vicinity of the tip is screwed into the female screw,
A building forming unit in which a front end surface of the bolt screwed into the female screw and an outer surface of the side plate provided with the female screw are flush with each other .   The building forming unit according to claim 1, wherein a portion of the side surface of the beam member that contacts the side plate is a concave portion. The side plate has an end portion, and has a tapered portion that is separated from the engagement plate as it goes to the end portion,
The building forming unit according to claim 2, wherein a tip of the side plate is flush with the side surface of the pillar member. A building incorporating at least one building forming unit according to any one of claims 1 to 3 .

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