JP6386390B2 - 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. It has a fixture that protrudes upward from the structure, and is connected to a wall panel that extends from the side of the floor panel and extends to the top of the floor panel. A lower washer having a nut to be attached is attached below the joining frame material at the lower end of the floor panel, and the fixture that is placed on the lower structure and protrudes from the lower structure is The tubular member provided in the lower washer is passed through and fastened to the tubular member, and the nut and the tubular member provided in the lower washer are arranged in close contact with each other.

  The invention according to claim 2 further includes a connection tool protruding upward from the lower structure in the invention according to claim 1, and the connection tool penetrates the joining frame member, and the joining frame member includes It is made to be concluded.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the wall panel further includes a wall frame assembly composed of an upper frame, a lower frame, and a vertical frame, and a pair of adjacent vertical frames of the wall panel. A frame-shaped metal fitting is disposed on the lower frame, and the upper end portion of the connector penetrates the frame-shaped metal fitting inside the wall panel and is fastened to the frame-shaped metal fitting. is there.

  According to a fourth aspect of the present invention, in the third 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 onto 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 5 is the invention according to any one of claims 1 to 4, wherein the lower washer of the connector is fixedly attached to a joining frame member at the lower end portion of the floor panel in the building structure. It is what I did.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the lower structure is a foundation, and the fixture is a fixing bolt planted on the foundation. is there.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the building structure is a building unit.

  The invention according to claim 8 is the construction method of the joint structure of a building according to any one of claims 1 to 7, 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) A fixture projecting upward from the lower structure is fastened to a cylindrical member of a lower washer having a nut screwed to a coupling bolt of the coupling tool. The entire building structure in which the floor panel and the wall panel are connected by the connecting tool is fixed to the lower structure by the connecting bolt, the lower washer and the fixing tool of the connecting tool, and the floor panel of the building structure is It is possible to prevent displacement in the upward and horizontal directions with respect to the lower structure.

  (c) A fixture projecting upward from the lower structure is fastened to a cylindrical member of a lower washer having a nut screwed to a coupling bolt of the coupling tool. Thereby, the fixture protruding from the lower structure and the connector extending upward from the floor panel side in the building structure and connected to the wall panel are connected by the lower washer of the connector. 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 above-mentioned floor panel by the connecting tool, and then the fixing tool connected to the lower washer of this connecting tool. Thus, it is reliably transmitted to the lower structure provided with the fixture. Therefore, the pulling strength of the whole building with respect to the lower structure can be improved.

  (d) When the pulling force acting on the wall panel of the building structure is transmitted to the lower structure by the connecting bolt, the lower washer and the fixing tool of the connecting tool, the moment M generated around the fixing tool due to the pulling force. (M = pull-out force P acting on the coupling tool × distance L between the coupling tool and the fixture L) tends to cause bending deformation in the lower washer and the joining frame member attached to the lower washer. . At this time, the nut to which the connecting tool is screwed in preparation for the lower washer and the cylindrical member to which the fixing tool is fastened in close contact with the lower washer are brought into close contact with each other, minimizing the above-mentioned L and thus the above-mentioned. M is minimized, and as a result, bending deformation of the lower washer and the joining frame material is suppressed. Therefore, the pulling-out strength of the whole building with respect to a lower structure can be improved further.

(Claim 2)
(e) A connector protruding upward from the lower structure is fastened to a joining frame member at the lower end of the floor panel in the building structure. Thereby, it can prevent more reliably that the floor panel of a building structure displaces to an upper direction and a horizontal direction with respect to a lower structure.

(Claim 3)
(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 4)
(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 said (f).

(Claim 5)
(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 6)
(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.

(Claims 7 and 8)
(j) When the building structure consists of building units, the above-mentioned (a) to (i) can be realized in the unit building.

FIG. 1 is a sectional view showing a structure 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 sectional view taken along line III-III in FIG. FIG. 4 is a schematic perspective view showing a lower washer of the coupling tool.

  The unit building 100 of the present invention is constructed by installing each of a plurality of building units 30 on a foundation 10 (lower structure) as shown in FIGS.

  As shown in FIGS. 1 and 2, 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 is made of wood, 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-floor building unit and a head connection in the upper-floor building unit) 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. In addition, within a range where the counterbore 45 is formed in the joining frame member 44, a long nut 63 provided in a lower washer 61 of a connector 60 described later and a receiving hole 44K for receiving a cylindrical member 64 are provided. Further, the floor surface material 43 includes a bolt insertion hole 43K through which the connection bolt 62 of the connection tool 60 is 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 connection structure of the floor panel 40 and the wall panel 50 in the production plant of the building unit 30 and (B) the connection structure of the building unit 30 made to the foundation 10 at the construction site will be described. In these connection structures, the connection tool 60 is used.

  The connector 60 includes a rectangular washer 61 as shown in FIG. The lower washer 61 includes screw holes 61H at four corners for set screws (not shown) that are screwed to the joining frame member 44 at the lower end of the floor panel 40. The lower washer 61 includes a long nut 63 and a tubular member 64 that are welded to the upper surface. The long nut 63 can be screwed with a lower end threaded portion 62 </ b> A of the connecting bolt 62 of the connecting tool 60. Further, the cylindrical member 64 is inserted into the insertion end inserted into the lower washer 61 of the fixing bolt 12 (fixing tool) which is implanted in the foundation 10 and protrudes upward from the upper surface of the foundation 10 so as to be fastened. The

(A) Connection structure of the floor panel 40 and the wall panel 50 of the building unit 30 In the wall frame assembly 54 of the wall panel 50 in the building unit 30, a pair of adjacent vertical frames 53 and 53 are spaced apart by a spacer (not shown). A frame-shaped metal fitting 70 is disposed on the lower frame 52 at this interval. As shown in FIGS. 1 and 2, 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, and a bolt is inserted into the lower portion so that the nut 71 and the shaft core coincide with each other. 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. The floor panel 40 is turned over so that the lower surface of the joining frame member 44 faces upward, and the lower washer of the connector 60 is inserted into the receiving hole 44K and the bolt insertion hole 43K provided in the joining frame member 44 and the floor member 43. A connecting bolt 62, a long nut 63, and a tubular member 64 screwed into a long nut 63 provided in 61 are inserted. Further, the lower washer 61 is fixed to the joining frame member 44 with set screws inserted into the screw holes 61H at the four corners of the lower washer 61 in a state where the lower washer 61 is accommodated in the counterbore 45 on the lower surface of the joining frame member 44. To install. 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.

  The lower frame 52 of the wall panel 50 is set on the outer edge of the floor surface material 43 in the floor panel 40. 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 screw 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 screw 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 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 fixing bolt 12 projecting upward through the base spacer 12 of the base 10 passes through the lower washer 61 and the tubular member 64 of the connector 60, and the washer 13 is set around the penetrating end. 14 is screwed to the penetrating end. As a result, the fixing bolt 12 is fastened to the lower washer 61 and the tubular member 64 of the connector 60.

  At the same time, the anchor bolt 11 projecting upward through the foundation spacer 12 of the foundation 10 passes through the bolt insertion hole 44H provided in the joining frame member 44 in the floor panel 40, and the washer 15 is provided around the penetration end. The nut 16 is set and screwed into its penetrating end. As a result, the anchor bolt 11 is fastened to the joining frame member 44 at the lower end of the floor panel 40.

  In the floor panel 40, the bottom 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 joining frame member 44 is arranged on the upper surface of the joining frame member 44. A window-like opening 41 </ b> A that allows the anchor bolt 11, washer 15, and nut 16 to be received is formed.

According to the present embodiment, the following operational effects can be 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 fixing bolt 12 protruding upward from the foundation 10 is fastened to the cylindrical member 64 of the lower washer 61 having the long nut 63 screwed to the connecting bolt 62 of the connecting tool 60. The entire building unit 30 in which the floor panel 40 and the wall panel 50 are connected by the connection tool 60 is fixed to the foundation 10 by the connection bolt 62, the lower washer 61 and the fixing bolt 12 of the connection tool 60. It is possible to prevent the floor panel 40 of the unit 30 from being displaced upward and horizontally with respect to the foundation 10.

  (c) The fixing bolt 12 projecting upward from the foundation 10 is fastened to the cylindrical member 64 of the lower washer 61 having the long nut 63 screwed to the connecting bolt 62 of the connecting tool 60. Accordingly, the fixing bolt 12 protruding from the foundation 10 and the connecting tool 60 extending upward from the floor panel 40 side of the building unit 30 and connected to the wall panel 50 are connected to the lower washer 61 of the connecting tool 60. Connected by 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 fixed bolt 12 connected to the fixed bolt 12 is reliably transmitted to the foundation 10 on which the fixed bolt 12 is provided. Therefore, the pulling strength of the whole building with respect to the foundation 10 can be improved.

  (d) When the pulling force acting on the wall panel 50 of the building unit 30 is transmitted to the foundation 10 by the connecting bolt 62, the lower washer 61 and the fixing bolt 12 of the connector 60, the fixing bolt 12 is caused by the pulling force. The moment M (M = the pulling force P acting on the connecting tool 60 × the axial distance L between the connecting tool 60 and the fixing bolt 12) generated around the lower washer 61 and the joining frame member attached to the lower washer An attempt is made to cause bending deformation in 44. At this time, the long nut 63 provided in the lower washer 61 to which the connector 60 is screwed and the cylindrical member 64 provided in the lower washer 61 and fastened with the fixing bolt 12 are in close contact with each other, and L is minimized, and as a result, the aforementioned M is minimized, and as a result, bending deformation of the lower washer 61 and the joining frame member 44 is suppressed. Therefore, the pulling strength of the whole building with respect to the foundation 10 can be further improved.

  (e) The anchor bolt 11 protruding upward from the foundation 10 is fastened to the joining frame member 44 at the lower end of the floor panel 40 in the building unit 30. Thereby, it can prevent more reliably that the floor panel 40 of the building unit 30 displaces to the upward direction and a horizontal direction with respect to the foundation 10.

  (f) The upper end portion of the connection 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.

  (g) A long nut 63 is welded to the upper surface of the lower washer 61 of the connecting tool 60, and a connecting bolt 62 is screwed to the long nut 63. Thereby, the upper end part 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 (f).

  (h) The lower washer 61 of the connector 60 is fixedly attached to the joining frame member 44 at the lower end 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. 44, the lower washer 61 of the connector 60 can be simply attached and fixed to the upward surface of the connector 44, and then the floor panel 40 is inverted from the inverted state in order to erect the wall panel 50 on the floor panel 40. When it is made to stand upright, the lower washer 61 of the connector 60 can be fixedly maintained without dropping from the joining frame member 44 at the lower end 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.

  (i) In the unit building 100 in which the lower structure is the foundation 10 and the connection tool is the anchor bolt 11 planted on the foundation 10, the anchor bolt 11 is connected to the lower washer 61 of the connecting tool 60 and the lower end of the floor panel 40. This is penetrated through the joining frame member 44 and is fastened to the lower washer 61 and the joining frame member 44.

  In addition, the joining structure of the building using the connecting tool 60 (the lower washer 61, the connecting bolt 62, the long nut 63, the cylindrical member 64) of the present invention can be applied to the connecting structure of the upper floor building unit to the lower floor building unit. . At this time, the lower washer 61 of the connector 60 is placed on a wall spacer provided on the upper surface of the upper frame 51 in the wall panel 50 of the lower floor building unit.

  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 top 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 30. 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 61H for the set screw. 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)
12 Fixing bolt (fixing tool)
30 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 Connection tool 61 Lower washer 62 Connection bolt 63 Long nut 64 Cylindrical member 70 Frame-shaped metal fitting 71 Nut 100 Unit Building (building)

Claims (8)

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,
A fixture 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,
A lower washer having a nut to which a connection bolt of the connection tool is screwed is attached below the joining frame material at the lower end of the floor panel, and is placed on the lower structure.
A fixture protruding from the lower structure passes through the cylindrical member provided in the lower washer, and is fastened to the cylindrical member.
A joint structure for a building, wherein a nut and a tubular member provided in a lower washer are arranged in close contact with each other.   2. The building joint structure according to claim 1, further comprising a connection tool protruding upward from the lower structure, the connection tool penetrating through the joining frame member, and fastened to the joining frame member. The wall panel has a wall frame assembly composed of an upper frame, a lower frame, and a vertical frame, and a frame-shaped metal fitting is disposed on the lower frame between a pair of adjacent vertical frames of the wall panel,
The building joint structure according to claim 1 or 2, wherein an upper end portion of the connector penetrates the frame-shaped metal fitting inside the wall panel and is fastened to the frame-shaped metal fitting. 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 3, 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 any one of claims 1 to 4, wherein a 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 building joint structure according to claim 1, wherein the lower structure is a foundation, and the fixture is a fixing bolt planted on the foundation.   The building joint structure according to claim 1, wherein the building structure is a building unit.   The construction method of the building joint structure according to any one of claims 1 to 7, wherein the building unit is manufactured at a construction site by joining the wall panel and the floor panel in a factory to manufacture the building unit. A construction method for a joint structure of a building, characterized by joining with a structure.

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