JP6454168B2 - Building joint structure and construction method - Google Patents

Description

  The present invention relates to a building joint structure and a construction method thereof.

  A building such as a conventional unit building is constructed by installing a building structure such as a building unit on a lower structure such as a foundation or a lower floor building structure.

  As described in Patent Document 1, a conventional unit building is manufactured by joining a wall panel and a floor panel in a factory to manufacture a building unit, and then the building unit is joined to a lower structure at a construction site.

  In the manufacturing process of the building unit, a connecting bolt extending from the side of the joining frame (base or head joint) at the lower end of the floor panel to the upper side of the floor panel is arranged in the wall frame of the wall panel. It is screwed onto the nut of the provided frame-shaped bracket. Thereby, the floor panel and wall panel which comprise a building unit are connected without gap, and the height dimensional accuracy of a building unit is improved.

  Further, in the conventional unit building, when the building unit is installed on a lower structure such as a foundation or a lower floor building unit, as described in Patent Document 2, a connection bolt (an anchor bolt or a joint) protruding from the lower structure is used. The bolt is passed through a bolt insertion hole provided in a joining frame member at the lower end of the floor panel in the building unit and protrudes upward, and a nut is screwed to the protruding end of the connection bolt. Thereby, the floor panel of the building unit is fastened to the lower structure, and the floor panel of the building unit is prevented from being displaced upward and horizontally with respect to the lower structure.

Japanese Unexamined Patent Publication No. 9-15525 Japanese Patent No. 3739245

  If the building unit described in Patent Document 1 is adopted in the unit building described in Patent Document 2, the floor panel and the wall panel constituting the building unit are connected without a gap by the connecting bolt described in Patent Document 1. It is possible to prevent the floor panel of the building unit from being displaced relative to the lower structure by the connection bolt described in Patent Document 2.

  However, when the building unit described in Patent Document 1 is adopted in the unit building described in Patent Document 2, the connection bolt that protrudes from the lower structure and is fastened to the floor panel in the building unit, and the floor panel side in the building unit The connecting bolts extending from and connected to the wall panel are not directly connected to each other. For this reason, the pulling force acting on the wall panel of the building unit is transmitted from the wall panel of the building unit to the floor panel by the above-described connecting bolt, but the connection bolt provided in the lower structure is It is transmitted only indirectly through the frame material for joining at the lower end of the floor panel in the building unit, and there is a limit to the improvement of the pulling strength of the entire building with respect to the lower structure.

  An object of the present invention is to connect a floor panel and a wall panel constituting a building structure such as a building unit without gaps, prevent the floor panel of the building structure from being displaced with respect to the lower structure, and further The object is to improve the pulling strength of the entire building against the structure.

The invention according to claim 1 is constructed by installing a building structure on a lower structure, and the building structure is formed by standing a wall panel on a floor panel. A connecting tool that protrudes upward from the structure, and a connecting tool that extends from the floor panel and extends to the upper side of the floor panel is connected to the wall panel. At the bottom end of the panel, it is attached under the joining frame material, and is placed on the lower structure, and a connector protruding from the lower structure penetrates the lower washer and the joining frame material of the connector. The wall panel is fastened to the lower washer and the joining frame member, and the wall panel has a wall frame assembly including an upper frame, a lower frame, and a vertical frame, and the frame is formed on the lower frame between a pair of adjacent vertical frames of the wall panel. And the upper end of the coupler penetrates the frame-shaped bracket inside the wall panel, and the frame-shaped bracket A connecting structure of a building, wherein the connecting tool further penetrates a reinforcing washer attached on the joining frame member, and is fastened to a lower washer, a joining frame member, and a reinforcing washer; An extension portion of the reinforcing washer is attached to the periphery of a portion where the coupling tool extends on the upper surface of the joining frame member, and the reinforcing washer has a plate-like reinforcing rib standing from the upper surface of the reinforcing washer Is provided .

According to a second aspect of the present invention, in the first aspect of the present invention, the connecting tool is formed by welding a nut to the upper surface of the lower washer and screwing a connecting bolt to the nut. The upper end of the pierced through the frame-shaped metal fitting inside the wall panel, and is screwed onto a nut set on the frame-shaped metal fitting.

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the lower washer of the connector is fixedly attached to the joining frame member of the lower end portion of the floor panel in the building structure. Is.

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein the lower structure is a foundation, and the connector is an anchor bolt planted on the foundation. is there.

The invention according to claim 5 is the invention according to any one of claims 1 to 4 , wherein the lower structure is a building structure on a lower floor, and the connection tool is implanted in the building structure on the lower floor. It is a joint bolt.

The invention according to claim 6 is the invention according to any one of claims 1 to 5 , wherein the building structure is a building unit.

The invention according to claim 7 is the construction method of the joint structure of a building according to any one of claims 1 to 6 , and after manufacturing the building unit by joining the wall panel and the floor panel in a factory, The building unit is joined to the lower structure at the construction site.

(Claim 1)
(a) With the connecting tool, the floor panel and the wall panel constituting the building structure can be connected without a gap, and the height dimensional accuracy of the building structure can be improved.

  (b) The connecting device protruding upward from the lower structure can prevent the floor panel of the building structure from being displaced upward and horizontally with respect to the lower structure.

  (c) A lower washer provided at the lower end of the connector is attached to the joining frame material at the lower end of the floor panel in the building structure, and is placed on the lower structure and protrudes from the lower structure. The tool penetrates the lower washer of the connecting tool and the joining frame material at the lower end of the floor panel, and is fastened to the lower washer and the joining frame material. As a result, a connection tool that protrudes from the lower structure and is fastened to a joining frame member at the lower end of the floor panel in the building structure, and extends upward from the floor panel side in the building structure and is connected to the wall panel. The connecting tool is connected by a lower washer provided at the lower end of the connecting tool. For this reason, the pulling force acting on the wall panel of the building structure is transmitted from the wall panel of the building structure to the floor panel by the connecting tool, and then connected to the lower washer of the connecting tool. Thus, it is reliably transmitted to the lower structure provided with the connection tool. Therefore, the pulling strength of the whole building with respect to the lower structure can be improved.

(d) The connecting tool passes through the reinforcing washer provided on the joining frame member at the lower end of the floor panel, and is fastened to the lower washer, the joining frame member, and the reinforcing washer. And the extension part of a reinforcement washer is attached to the periphery of the part which the connection tool has extended in the upper surface of the frame material for joining. As a result, the pulling force acting on the wall panel of the building unit is transmitted to the lower structure by the lower washer of the coupling tool and the connecting tool, and the moment M (M = connecting tool) generated around the connecting tool due to the pulling force. When the pulling force P × the distance L between the coupling tool and the connecting tool is about to cause bending deformation in the lower washer and the joining frame material, they are attached on the joining frame material. The reinforcing washer fastened to the lower washer and the joining frame member opposes the moment M and suppresses the bending deformation from above. Therefore, the pulling-out strength of the whole building with respect to a lower structure can be improved further.

(e) The reinforcing washer of the above (d) is provided with a plate-like reinforcing rib standing from the upper surface of the reinforcing washer. The reinforcing rib increases the bending rigidity of the reinforcing washer against the moment M, and strengthens the bending deformation suppressing ability for the lower washer and the joining frame member by the reinforcing washer.

(f) The upper end portion of the coupler extending from the side of the joining frame member at the lower end portion of the floor panel is fastened to the frame-shaped metal fitting disposed in the wall frame assembly of the wall panel. Thereby, the floor panel and wall panel which comprise a building structure can be connected without gap.

(Claim 2 )
(g) A nut is welded to the upper surface of the lower washer, and a connecting bolt is screwed onto the nut. Thereby, the upper end part of the connection bolt which comprises a connection tool can be fastened reliably to the frame-shaped metal fitting of the above-mentioned (f).

(Claim 3 )
(h) The lower washer of the connector is fixedly attached to the joining frame member at the lower end of the floor panel in the building structure. When setting the connecting tool that extends from the side of the joining frame member at the lower end of the floor panel to the upper side of the floor panel, the upward direction of the joining frame member in the floor panel turned upside down When the lower washer of the coupler can be easily attached and fixed, and then the floor panel is turned upside down from the inverted position to stand the wall panel on the floor panel, The washer can be fixedly maintained without being dropped from the joining frame material at the lower end of the floor panel. Thereby, the assembly workability | operativity of the building structure by which the lower washer of a coupling tool is attached to the joining frame material of the lower end part of a floor panel can be improved.

(Claim 4 )
(i) In a building in which the lower structure is a foundation and the connection tool is an anchor bolt planted on the foundation, the anchor bolt penetrates the joint washer and the lower washer of the floor panel. And fastened to the lower washer and the frame material for joining.

(Claim 5 )
(j) In a building in which the lower structure is a building structure on the lower floor and the connection tool is a joint bolt planted in the building structure on the lower floor, the joint bolt is connected to the lower washer and the upper floor of the connection tool. It penetrates the joining frame material at the lower end of the floor panel in the building structure, and is fastened to the lower washer and the joining frame material.

(Claims 6 and 7 )
(k) When the building structure consists of building units, the above-mentioned (a) to (j) can be realized in the unit building.

FIG. 1 is a cross-sectional view showing a structure of a building of Reference Example 1 in which a building unit is installed on a foundation. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a cross-sectional view showing a structure in which the upper floor building unit is installed on the lower floor building unit. 4 is a cross-sectional view taken along line IV-IV in FIG. 5A and 5B relate to the construction process of the coupling tool, wherein FIG. 5A is a perspective view illustrating the coupling tool, and FIG. 5B is a perspective view illustrating a method of attaching the coupling tool to the floor panel. FIG. 6 is a perspective view showing a method of connecting the floor panel and the wall panel. FIG. 7 is a cross-sectional view showing the building joint structure of Reference Example 2 . 8 is a cross-sectional view taken along line VIII-VIII in FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. FIG. 10 is a schematic perspective view showing a connector, a reinforcing washer, and a washer. FIG. 11 is a cross-sectional view illustrating a building joint structure according to the first embodiment . 12 is a cross-sectional view taken along line XII-XII in FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is a schematic perspective view showing a connector, a reinforcing washer, and a washer.

( Reference Example 1 ) (FIGS. 1 to 6)
The unit building 100 is constructed by installing each of the plurality of building units 30 on the foundation 10 (lower structure) as shown in FIGS. 1 and 2, and further on the lower floor building unit 30A (lower structure). The upper floor building unit 30B is installed and constructed as shown in FIGS.

  As shown in FIG. 1, the foundation 10 is provided with anchor bolts 11 (connectors) planted at a plurality of positions in the longitudinal direction so as to protrude upward from the upper surface thereof. On the upper surface of the foundation 10 along the outer periphery of the unit building 100, a foundation spacer 12 (an upper end member of the foundation 10) made of hard rubber, synthetic resin, ceramic, or the like is provided continuously.

  The building unit 30 (30A, 30B) is a wood system, and is formed by standing a wall panel 50 on the outer edge of the floor panel 40 as shown in FIGS.

  The floor panel 40 has a floor frame assembly 42 that is assembled in a square shape by a joist 41 made of wood, and a floor material 43 is stretched on the upper surface of the floor frame assembly 42. A frame member 44 for joining (referred to as a base in the lower building unit 30A and a head connection in the upper building unit 30B) is provided at the lower peripheral edge of the floor frame assembly 42. That is, there is a joining frame member 44 at the lower end of the floor panel 40. In addition, a counterbore 45 having an area and a depth in which the lower washer 61 is accommodated is formed on the lower surface of the joining frame member 44 at a portion where a lower washer 61 of a connector 60 described later is attached. Further, the joining frame member 44 includes a bolt insertion hole 44H through which the anchor bolt 11 is vertically inserted. Further, the joining frame member 44 and the floor member 43 include bolt insertion holes 44K and 43K through which the connection bolts 62 of the connection tool 60 are inserted vertically.

  The wall panel 50 has a wall frame assembly 54 formed by an upper frame 51, a lower frame 52 and a vertical frame 53 made of wood. The wall frame assembly 54 is assembled into a rectangular shape by arranging a plurality of vertical frames 53 between an upper frame 51 and a lower frame 52, and a wall material 55 is stretched on the outer surface thereof. In addition, the lower frame 52 of the wall panel 50 includes a bolt insertion hole 52K through which a connection bolt 62 of a connection tool 60 described later is inserted vertically.

  Hereinafter, (A) the connecting structure of the floor panel 40 and the wall panel 50 in the production factory of the building unit 30 (30A, 30B), (B) the connecting structure of the building unit 30 made to the foundation 10 at the construction site, (C The connection structure of the upper floor building unit 30B made to the lower floor building unit 30A at the construction site will be described. In these connection structures, the connection tool 60 is used. As shown in FIG. 5A, the connecting tool 60 includes a rectangular washer 61 and a lower nut portion 62 </ b> A of the connecting bolt 62 attached to a long nut 63 welded to one end of the upper surface of the lower washer 61. Prepare by screwing. The connection tool 60 includes a lower washer 61 at the lower end portion, and includes an upper end screw portion 62B of the connection bolt 62 extending upward from the lower washer 61. The lower washer 61 is provided with a bolt insertion hole 61H for the anchor bolt 11 described above on the other end side that is separated from the long nut 63, and at the joining frame member 44 (base or head joint) at the lower end of the floor panel 40. Screw holes 61J for set screws 64 to be screwed are provided at four corners.

(A) Connection structure of floor panel 40 and wall panel 50 of building unit 30 (30A, 30B) (FIGS. 5 and 6)
Within the wall frame 54 of the wall panel 50 in the building unit 30 (30A, 30B), a pair of adjacent vertical frames 53, 53 are spaced apart by a spacer 53S. A metal fitting 70 is provided. As shown in FIGS. 1 to 4, the frame-shaped metal fitting 70 is formed in a rectangular frame shape, and a nut 71 can be set on the inner surface of the lower portion thereof. A hole 70H is formed. The frame-shaped metal fitting 70 is pierced and held by a pin 72 inserted through a pair of vertical frames 53 and 53. The floor panel 40 and the wall panel 50 are connected to each other by the upper end screw portion 62B of the connection bolt 62 of the connection tool 60 assembled on the floor panel 40 side being screwed to the nut 71 of the frame-shaped metal fitting 70.

  The connecting device 60 is assembled in the floor panel 40 as follows. As shown in FIG. 5B, the floor panel 40 is turned upside down so that the lower surface of the joining frame member 44 faces upward, and the bolt insertion holes 44K and 43K provided in the joining frame member 44 and the floor member 43 are inserted. The connecting bolt 62 of the connecting tool 60 is inserted. Further, the lower washer 61 is placed on the counterbore 45 on the lower surface of the joining frame member 44 while the bolt insertion hole 61H provided on the lower washer 61 of the connector 60 is aligned with the bolt insertion hole 44H provided on the joining frame member 44. In the retracted state, the lower washer 61 is fixedly attached to the joining frame member 44 with set screws 64 inserted into the screw holes 61J at the four corners of the lower washer 61. The upper end threaded portion 62B of the connecting bolt 62 penetrates the bolt insertion hole 43K provided in the floor surface material 43 of the floor panel 40 and protrudes outward (FIG. 6).

  A lower frame 52 of the wall panel 50 is set on the outer edge of the floor covering 43 in the floor panel 40 as shown in FIG. At this time, the upper end screw portion 62B of the connecting bolt 62 protruding upward from the floor material 43 is inserted into the bolt insertion hole 70H at the lower portion of the frame-shaped metal fitting 70 already disposed on the lower frame 52 in the wall panel 50. Is done. A rectangular flat washer 71A is set around the upper end threaded portion 62B of the connecting bolt 62 inserted into the bolt insertion hole 70H of the frame-like metal fitting 70, and the nut 71 set in the socket with magnet is the upper end threaded portion 62B of the connecting bolt 62. Screwed on. Thereby, the upper end thread part 62B of the connection bolt 62 in the connection tool 60 extended from the side of the frame material 44 for joining in the lower end part of the floor panel 40 in the building unit 30 to the upper direction of the floor surface material 43 in the floor panel 40. However, it penetrates through the frame-shaped metal fitting 70 inside the wall panel 50 and is screwed onto a nut 71 set on the frame-shaped metal fitting 70, so that the floor panel 40 and the wall panel 50 are connected.

(B) Connection structure of building unit 30 to foundation 10 (FIGS. 1 and 2)
The building unit 30 formed in the above (A) is installed on the foundation spacer 12 provided on the upper surface of the foundation 10. That is, the lower washer 61 provided at the lower end of the connector 60 incorporated in the floor panel 40 in the building unit 30 as described above is used for joining the lower end of the floor panel 40 as shown in FIGS. It is placed on the foundation spacer 12 (upper end member) of the foundation 10 in a state of being housed in a counterbore 45 formed on the frame member 44 and attached to the joining frame member 44.

  At this time, the anchor bolt 11 protruding upward through the foundation spacer 12 of the foundation 10 is inserted into the bolt insertion hole 61H provided in the lower washer 61 of the connector 60 and the bolt insertion provided in the joining frame member 44 in the floor panel 40. The washer 13 is set around the through end through the hole 44H, and the nut 14 is screwed into the through end. Thereby, the anchor bolt 11 is fastened to the lower washer 61 of the connector 60 and the joining frame member 44 at the lower end of the floor panel 40.

  Further, in the floor panel 40, the lower end surface side of the joist 41 located around the anchor bolt 11 that protrudes upward through the bolt insertion hole 44 </ b> H of the bonding frame member 44 is arranged on the upper surface of the bonding frame member 44. A window-like opening 41 </ b> A that allows the anchor bolt 11, the washer 13, and the nut 14 to be received is formed.

  The washer 13 includes cylindrical projections 13A at a plurality of positions around the through hole through which the anchor bolt 11 passes, and the projection 13A is pressed against the upper surface of the joining frame member 44 by a nut 44 screwed to the anchor bolt 11. The building unit 30 is prevented from being displaced in the horizontal direction with respect to the foundation 10.

(C) Connection structure of upper-floor building unit 30B to lower-floor building unit 30A (FIGS. 3 and 4)
The upper floor building unit 30 </ b> B formed in the above (A) is installed on the lower floor building unit 30. The lower washer 61 provided at the lower end of the connector 60 incorporated in the floor panel 40 of the upper floor building unit 30B as described above is used for joining the lower end of the floor panel 40 as shown in FIGS. Wall spacer 56 (provided on the upper surface of upper frame 51 in wall panel 50 of lower floor building unit 30A in a state of being housed in counterbore 45 formed on frame member 44 and attached to frame member 44 for joining. It is installed on the upper end member.

  In addition, joint bolts 57 (connectors) are planted at a plurality of positions in the longitudinal direction of the upper frame 51 in the wall panel 50 of the lower floor building unit 30A so as to protrude upward from the upper surface thereof. The joint bolt 57 is a threaded bolt at both ends, and has a collar portion 57A in the middle in the longitudinal direction. Prefixed to the upper frame 51 with a nut 57C.

  At this time, the joint bolt 57 protruding upward through the wall spacer 56 of the wall panel 50 is provided in the bolt insertion hole 61H provided in the lower washer 61 of the connector 60 and the joining frame member 44 in the floor panel 40. A washer 58 is set around the penetrating end through the bolt insertion hole 44H, and a nut 59 is screwed to the penetrating end. As a result, the joint bolt 57 is fastened to the lower washer 61 of the connector 60 and the joining frame member 44 at the lower end of the floor panel 40.

  Further, in the floor panel 40, the lower end surface side of the joist 41 located around the anchor bolt 11 that protrudes upward through the bolt insertion hole 44 </ b> H of the bonding frame member 44 is arranged on the upper surface of the bonding frame member 44. A window-like opening 41 </ b> B is formed so as to accept the joint bolt 57, the washer 58, and the nut 59.

  The washer 58 is provided with cylindrical projections 58A at a plurality of positions around the through hole through which the joint bolt 57 passes, and the projection 58A is pressed against the upper surface of the joining frame member 44 by a nut 59 screwed to the joint bolt 57. The upper floor building unit 30B is prevented from being displaced in the horizontal direction with respect to the lower floor building unit 30A.

According to this reference example , the following operational effects are obtained.
(a) By the connecting tool 60, the floor panel 40 and the wall panel 50 which comprise the building unit 30 are connected without gap, and the height dimensional accuracy of the building unit 30 can be improved.

  (b) The floor panel 40 of the building unit 30 is connected to the lower structure (the foundation 10 or the lower part) by the connecting tool (anchor bolt 11 or joint bolt 57) protruding upward from the lower structure (the foundation 10 or the lower building unit 30A). It is possible to prevent the floor building unit 30A) from being displaced upward and horizontally.

  (c) The lower washer 61 provided at the lower end of the connector 60 is attached to the joining frame member 44 at the lower end of the floor panel 40 in the building unit 30 and the lower structure (the foundation 10 or the lower building unit 30A). A connecting tool (an anchor bolt 11 or a joint bolt 57) that is placed on the upper end member (the foundation spacer 12 or the wall spacer 56) and protrudes from the lower structure (the foundation 10 or the lower building unit 30A) is a coupling tool. The lower washer 61 and the joining frame member 44 at the lower end of the floor panel 40 are passed through and fastened to the lower washer 61 and the joining frame member 44. Thereby, the connection tool (anchor bolt 11 or joint bolt 57) that protrudes from the lower structure (the foundation 10 or the lower building unit 30A) and is fastened to the joining frame member 44 at the lower end of the floor panel 40 in the building unit 30. And the connecting tool 60 that extends upward from the floor panel 40 side in the building unit 30 and is connected to the wall panel 50 is directly connected by a lower washer 61 provided at the lower end of the connecting tool 60. . For this reason, the pulling force acting on the wall panel 50 of the building unit 30 is transmitted from the wall panel 50 of the building unit 30 to the above-described floor panel 40 by the connector 60 and then applied to the lower washer 61 of the connector 60. The connecting device (anchor bolt 11 or joint bolt 57) that is directly connected to the lower structure (foundation 10 or lower floor building unit 30A) provided with the connecting device (anchor bolt 11 or joint bolt 57). Reliable transmission. Accordingly, it is possible to improve the pull-out strength of the entire unit building 100 with respect to the lower structure (the foundation 10 or the lower floor building unit 30A).

  (d) The upper end portion of the connecting tool 60 extended from the side of the joining frame member 44 at the lower end portion of the floor panel 40 is fastened to the frame-shaped metal fitting 70 disposed on the wall frame assembly 54 of the wall panel 50. Thereby, the floor panel 40 and the wall panel 50 which comprise the building unit 30 can be connected without gap.

  (e) A long nut 63 is welded to the upper surface of the lower washer 61 in the connecting tool 60, and a connecting bolt 62 is screwed to the long nut 63. Thereby, the upper end screw part 62B of the connection bolt 62 which comprises the connection tool 60 can be reliably fastened to the frame-shaped metal fitting 70 of the above-mentioned (d).

  (f) The lower washer 61 of the connector 60 is fixedly attached to the lower surface material of the floor panel 40 in the building unit 30. When the connecting member 60 extending from the lower end portion of the floor panel 40 to the upper side of the floor panel 40 is set on the floor panel 40, the joining frame member in the floor panel 40 turned upside down is set. The lower washer 61 of the connector 60 can be simply attached and fixed to the upward surface of the connector 44 with a set screw 64, and then the floor panel 40 is turned over to stand the wall panel 50 on the floor panel 40. When the base washer 61 is inverted from the above state and erects, the lower washer 61 of the connector 60 can be fixedly maintained without being dropped from the joining frame member 44 at the lower end portion of the floor panel 40. Thereby, the assembly workability | operativity of the building unit 30 in which the lower washer 61 of the connection tool 60 is attached to the joining frame material 44 of the lower end part of the floor panel 40 can be improved.

  (g) In a unit building in which the lower structure is the foundation 10 and the connecting tool is the anchor bolt 11 planted on the foundation 10, the anchor bolt 11 is the floor washer 61 of the connector 60 and the floor panel in the building unit 30. The lower end portion 40 of the joint passes through the joining frame member 44 and is fastened to the lower washer 61 and the joining frame member 44.

  (h) In a unit building in which the lower structure is the lower-floor building unit 30A, and the connector is a joint bolt 57 planted in the lower-floor building unit 30A, the joint bolt 57 is a floor panel in the upper-floor building unit 30B. The lower end portion 40 of the joint passes through the joining frame member 44 and is fastened to the lower washer 61 and the joining frame member 44.

( Reference Example 2 ) (FIGS. 7 to 10)
Reference Example 2 is different from Reference Example 1 in that the anchor bolt 11 penetrates on the joining frame member 44 of the floor panel 40 in the connection structure of the building unit 30 to the foundation 10 (FIGS. 1 and 2). This is because a reinforcing washer 80 is attached.

  As shown in FIGS. 7 to 9, the anchor bolt 11 passes through the reinforcing washer 80 provided on the joining frame member 44 and is fastened to the lower washer 61, the joining frame member 44, and the reinforcement washer 80. . Then, the extension 80 </ b> A of the reinforcing washer 80 is attached to the periphery of the portion where the connection tool 60 extends on the upper surface of the joining frame member 44.

  As shown in FIG. 10, the reinforcing washer 80 has a deformed plate shape (consisting of a rectangular portion 81A and a square-shaped convex portion 81B projecting laterally from the central portion of one long side of the rectangular portion 81A). None, a bolt insertion hole 82 for the anchor bolt 11 is provided at the center in the longitudinal direction, and a bolt insertion hole 83 for the connection bolt 62 of the connector 60 is provided on one end side of the rectangular portion 81A (in other words, a reinforcing washer 80 The screw holes 84 for set screws (not shown) screwed to the joining frame member 44 are provided at the four corners of the rectangular portion 81A.

  The reinforcing washer 80 is attached to the upper surface of the joining frame member 44 in the floor panel 40, and the bolt insertion holes 82 are aligned with the bolt insertion holes 44H of the joining frame member 44 so as to form the screw holes 84 at the four corners. It is fixedly attached to the joining frame member 44 with the inserted set screw. Here, the rectangular convex portion 81B of the reinforcing washer 80 is attached to the upper surface of the joining frame member 44 and set in the window-like opening 41A provided in the joist 41.

  The wall panel 50 is connected to the floor panel 40 in which the reinforcing washer 80 is incorporated as described above to form the building unit 30 (30A, 30B). The upper end threaded portion 62B of the connecting bolt 62 in the connecting tool 60 extending from the lower end portion of the floor panel 40 to the upper side of the floor surface material 43 in the floor panel 40 is the interior of the wall panel 50. The floor panel 40 and the wall panel 50 are connected to each other by being screwed into a nut 71 set in the frame-shaped metal fitting 70.

  When the building unit 30 is installed on the foundation spacer 12 provided on the upper surface of the foundation 10, the anchor bolt 11 is provided with a bolt insertion hole 61 </ b> H provided in the lower washer 61 of the connector 60, and a frame material for joining in the floor panel 40. 44, through a bolt insertion hole 82 of a reinforcing washer 80 attached to the upper surface of the joining frame member 44, a washer 13 is set around the penetration end, and a nut 14 is placed at the penetration end. Screwed. As a result, the anchor bolt 11 is fastened to the lower washer 61 of the connector 60 and the joining frame member 44 and the reinforcing washer 80 at the lower end of the floor panel 40. In the reinforcing washer 80, an extension 80A having a bolt insertion hole 83 for the connection bolt 62 of the connection tool 60 is attached to the periphery of a portion where the connection bolt 62 extends on the upper surface of the joining frame member 44. It will be done. The thickness of the reinforcing washer 80 is larger than that of the lower washer 61 of the connector 60, and the bending rigidity of the reinforcing washer 80 is set larger than the bending rigidity of the lower washer 61 and the joining frame member 44.

Therefore, according to the present reference example , in addition to the function and effect of Reference Example 1 , the following function and effect are exhibited.
The anchor bolt 11 passes through the reinforcing washer 80 attached on the joining frame member 44 at the lower end of the floor panel 40, and is fastened to the lower washer 61, the joining frame member 44, and the reinforcing washer 80. Then, the extension 80A of the reinforcing washer 80 is attached to the periphery of the portion where the connecting tool 60 extends on the upper surface of the joining frame member 44. As a result, the pulling force acting on the wall panel of the building unit 30 is transmitted to the foundation 10 by the lower washer 61 of the connector 60 and the anchor bolt 11, and the moment M (around the anchor bolt 11 caused by the pulling force) M = Pulling force P acting on the connection tool 60 × Distance L between the connection tool 60 and the anchor bolt 11) When the lower washer 61 and the connection frame material 44 are to be bent and deformed, the connection frame material 44 The reinforcing washer 80 fastened to the lower washer 61 and the joining frame member 44 in a state of being attached to the upper side of the member against the moment M suppresses the bending deformation from above. Therefore, the pulling strength of the whole building with respect to the foundation 10 can be further improved.

  The reinforcing washer 80 can also be employed in the connection structure of the upper-floor building unit 30B to the lower-floor building unit 30 (FIGS. 3 and 4).

Example 1 (FIGS. 11-14)
The difference between the first embodiment and the second embodiment is that a reinforcing rib 85 is provided on the reinforcing washer 80 as shown in FIGS.

  As shown in FIG. 14, the reinforcing rib 85 has a portal plate shape (inverted U shape), and the leg portions 85 </ b> A on both sides are formed in a rectangular shape so as to stand upright at right angles to the upper surface of the reinforcing washer 80. A notch-shaped opening 85B, which is welded on the long side edge of one side of 81A and has the same shape as the window-shaped opening 41A provided in the joist 41, is provided between the legs 85A on both sides. The reinforcing rib 85 includes screw holes 85C for a set screw 86 screwed to the side surface of the joist 41 at a plurality of positions on the entire surface.

  When the reinforcing washer 80 provided with the reinforcing rib 85 is attached to the upper surface of the joining frame member 44 in the floor panel 40 as described above, the bolt insertion hole 82 is positioned in the bolt insertion hole 44H of the joining frame member 44. In addition, the notch-like opening 85B of the reinforcing rib 85 is aligned with the window-like opening 41A of the joining frame member 44, and a set screw inserted into the screw hole 85C of the reinforcing rib 85 around the window-like opening 41A. Fixed to the side of the joist 41 and attached. Here, the square-shaped convex portion 81 </ b> B of the reinforcing washer 80 is attached to the upper surface of the joining frame member 44 and set in the window-shaped opening 41 </ b> A of the joist 41.

Therefore, according to the present Example, in addition to the effect in Reference Examples 1 and 2, there exist the following effects.
A reinforcing rib 85 is provided on the reinforcing washer 80 of the reference example 2 . The reinforcing rib 85 increases the bending rigidity of the reinforcing washer 80 that opposes the moment M described above in Reference Example 2 , and has the ability to suppress bending deformation for the lower washer 61 of the connector 60 and the joining frame member 44 by the reinforcing washer 80. It becomes something to strengthen.

  The reinforcing washer 80 provided with the reinforcing rib 85 can also be used in the connection structure (FIGS. 3 and 4) of the upper floor building unit 30B to the lower floor building unit 30A.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention. For example, in the present invention, the upper part of the lower structure on which the lower washer of the connector is placed is not limited to the foundation spacer 12 or the wall spacer 56, but the foundation 10 itself as the lower structure or the lower building unit 30A. The upper frame 51 itself of the wall panel 50 may be used. Further, the lower washer 61 of the connector 60 does not necessarily include the screw hole 61 for the set screw 40. Further, the present invention is not limited to unit buildings, and can be widely applied to general buildings.

  According to the present invention, in a unit building, a floor panel and a wall panel constituting a building structure such as a building unit are connected without a gap, and the floor panel of the building structure is prevented from being displaced with respect to the lower structure. In addition, the pulling strength of the entire building with respect to the lower structure can be improved.

10 Foundation (substructure)
11 Anchor bolt (connector)
30 Building unit 30A Lower floor building unit 30B Upper floor building unit 40 Floor panel 44 Joining frame material 50 Wall panel 51 Upper frame 52 Lower frame 53 Vertical frame 54 Wall frame 60 Connector 61 Lower washer 62 Connection bolt 63 Long nut 64 Stop Screw 70 Frame-shaped metal fitting 71 Nut 80 Reinforcement washer 80A Extension 85 Reinforcement rib 100 Unit building

Claims (7)

In the joint structure of the building, which is constructed by installing the building structure on the lower structure, and the building structure is formed by standing the wall panel on the floor panel,
Having a connector projecting upward from the lower structure;
A connecting tool extending from the side of the floor panel and extending up to the floor panel is connected to the wall panel,
The lower washer included in the coupler is attached below the joining frame member at the lower end of the floor panel, and the connector mounted on the lower structure and protruding from the lower structure is the lower washer of the coupler. And a pair of vertical frames adjacent to the wall panel, the wall panel having a wall frame composed of an upper frame, a lower frame, and a vertical frame , which passes through the bonding frame material and is fastened to the lower washer and the bonding frame material. A frame-shaped bracket is arranged on the lower frame between
The upper end of the connector penetrates the frame-shaped metal fitting inside the wall panel, and is a joint structure of the building fastened to the frame-shaped metal fitting,
The connecting tool further penetrates a reinforcing washer attached on the joining frame member, and is fastened to a lower washer, a joining frame member, and a reinforcing washer,
The extension part of the reinforcing washer is attached to the periphery of the part where the connecting tool extends on the upper surface of the joining frame member,
A joint structure of a building in which the reinforcing washer is provided with plate-like reinforcing ribs that stand from the upper surface of the reinforcing washer . The connection tool is formed by welding a nut to the upper surface of the lower washer and screwing a connection bolt to the nut.
The building joining structure according to claim 1 , wherein an upper end portion of the connecting bolt penetrates the frame-shaped metal fitting inside the wall panel and is screwed to a nut set on the frame-shaped metal fitting. The joint structure of a building according to claim 1 or 2 , wherein the lower washer of the connector is fixedly attached to a joining frame member at a lower end portion of a floor panel in the building structure. The lower structure is fundamental, joining the building structure according to any one of claims 1 to 3, wherein said connecting device is implanted anchor bolts to the base. The joint structure of a building according to any one of claims 1 to 4 , wherein the lower structure is a building structure on a lower floor, and the connector is a joint bolt planted in the building structure on the lower floor. Joining the building structure according to any one of claims 1 to 5, wherein the building structure is a building unit. A construction method of joining the building structure according to any one of claims 1 to 6 after manufacturing the building unit by bonding the wall panel and the floor panel at the factory, the lower the construction site the該建product unit A construction method for a joint structure of a building, characterized by joining with a structure.

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