WO2014016936A1 - Fastener members, exterior wall structures comprising fastener members, and construction method for exterior walls - Google Patents

Fastener members, exterior wall structures comprising fastener members, and construction method for exterior walls Download PDF

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Publication number
WO2014016936A1
WO2014016936A1 PCT/JP2012/068969 JP2012068969W WO2014016936A1 WO 2014016936 A1 WO2014016936 A1 WO 2014016936A1 JP 2012068969 W JP2012068969 W JP 2012068969W WO 2014016936 A1 WO2014016936 A1 WO 2014016936A1
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WO
WIPO (PCT)
Prior art keywords
fastener
groove
narrowest
pair
panel body
Prior art date
Application number
PCT/JP2012/068969
Other languages
French (fr)
Japanese (ja)
Inventor
憲二 岡本
健彦 鍋島
正和 坂田
正博 新橋
久人 滴草
行正 荻原
山本　幸正
晴義 岡本
Original Assignee
鹿島建設株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 鹿島建設株式会社 filed Critical 鹿島建設株式会社
Priority to CN201280073947.4A priority Critical patent/CN104350218B/en
Priority to PCT/JP2012/068969 priority patent/WO2014016936A1/en
Priority to JP2014526670A priority patent/JP5706589B2/en
Publication of WO2014016936A1 publication Critical patent/WO2014016936A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/88—Curtain walls
    • E04B2/90—Curtain walls comprising panels directly attached to the structure
    • E04B2/94—Concrete panels

Definitions

  • the present invention relates to a fastener member for connecting a panel body and a casing, an outer wall structure provided with the fastener member, and an outer wall construction method.
  • Patent Documents 1 and 2 are known as technical documents related to an outer wall structure using a PC [Precast Concrete] plate.
  • Patent Document 1 discloses an outer wall structure in which a PC plate and a casing are connected by embedding a fastener member in a PC plate and embedding the front end side of the fastener member in a casing by placing concrete.
  • Patent Document 2 shows an outer wall structure that connects a PC board and a chassis by receiving a PC fastener embedded in the PC board by a fixing bracket embedded on the chassis side.
  • an object of the present invention is to provide a fastener member that can reduce heat transfer between the panel body and the casing, an outer wall structure including the fastener member, and an outer wall construction method.
  • the present invention is a fastener member for connecting a panel body and a casing, and is a plate fixed to one of the panel body and the casing and having a first groove for fitting formed therein.
  • a first fastener having a shape, a main body fixed to the other of the panel body and the housing, and a second fastener having a face plate formed with a second groove that fits into the first groove.
  • the first groove is a pair of first narrowest surfaces formed so as to sandwich the face plate of the second fastener, and a first spacing surface formed so as to be separated from the face plate compared to the first narrowest surface, A first bottom surface abutting the face plate, and the second groove is a pair of second narrowest surfaces formed so as to sandwich the first fastener, and the first fastener compared to the second narrowest surface.
  • a second spaced-apart surface formed so as to be separated; a second bottom surface that is in contact with the first bottom surface of the first fastener; Characterized in that it has.
  • the panel body and the casing are connected by fitting the fastener fixed to the panel body and the fastener fixed to the casing, and the panel body is supported with respect to the casing. be able to.
  • the contact area of the fitting portion is made by fitting the plate-like first fastener and the face plate of the second fastener, compared to the case of using a box-like or block-like fastener. The heat transfer between the panel body and the casing through the fastener member can be reduced.
  • this fastener member by providing a separation surface that is spaced apart from the mating fastener in the first groove and the second groove that mesh with each other, the movement of the mating side is regulated by the narrowest surface or the bottom surface, Since the contact area can be further reduced, the heat transfer can be further reduced.
  • this fastener member allows movement in the direction in which the first fastener and the second fastener are disengaged, and also allows swinging of each fastener with the pair of narrowest surfaces as fulcrums, it is possible during an earthquake, etc. Can absorb the displacement by allowing the movement (rocking) of the panel body relative to the housing. This contributes to improving the earthquake resistance of the wall structure provided with the fastener member.
  • the first spacing surface is formed so as to move away from the face plate as the distance from the pair of first narrowest surfaces increases, and the second spacing surface increases from the pair of second narrowest surfaces. You may form so that it may leave
  • the separation surface is formed so as to gradually move away from the mating fastener as the distance from the narrowest surface increases, so that a large step does not occur in the groove. Can be prevented from being caught by steps. This is advantageous in improving the seismic resistance of the wall structure provided with the fastener member, since the tolerance of displacement due to locking is made smooth.
  • the pair of first narrowest surfaces may be formed along the first bottom surface, and the pair of second narrowest surfaces may be formed along the second bottom surface.
  • the contact area between the first fastener and the second fastener can be further reduced as compared with the case where the pair of narrowest surfaces are formed in the middle of the groove, the heat transfer through the fastener member can be reduced. It is advantageous for reduction.
  • the present invention is an outer wall structure provided with the above-described fastener member, wherein a panel body constituting at least a part of the outer wall is connected to the housing by the fastener member.
  • the panel body and the housing are connected by fitting the fastener fixed to the panel body and the fastener fixed to the housing, and the panel body is supported by the housing. be able to.
  • the contact area of the fitting portion is made by fitting the plate-like first fastener and the face plate of the second fastener, compared to the case of using a box-like or block-like fastener. The heat transfer between the panel body and the casing through the fastener member can be reduced.
  • this outer wall structure by providing a separation surface that separates from the mating fastener in the first groove and the second groove that mesh with each other, the movement of the mating side is regulated by the narrowest surface or the bottom surface, Since the contact area can be further reduced, the heat transfer can be further reduced.
  • this outer wall structure allows movement in a direction in which the first fastener and the second fastener are disengaged, and also allows swinging of each fastener with a pair of narrowest surfaces as fulcrums, so that an earthquake or the like can occur. Can absorb the displacement by allowing the movement (rocking) of the panel body relative to the housing. This contributes to improving the earthquake resistance of the outer wall structure.
  • this invention is the outer wall construction method which constructs the outer wall structure mentioned above, Comprising: Panel body arrangement
  • the concrete is cast so as to embed a part of the other fastener.
  • the structure of a housing and the connection of a panel body and a housing can be performed at once, and the work efficiency on the site improves.
  • the position of the fastener embedded on the housing side and the fastener embedded on the panel body side Matching is not necessary, and the work is simplified.
  • the other fastener is disposed after the bar arrangement process, so that the other fastener does not interfere with the bar arrangement, and the bar arrangement work can be performed efficiently.
  • the heat transfer between the panel body and the casing through the fastener member can be reduced by employing the fastener member having the above-described configuration.
  • the fitting portion of the first fastener and the second fastener may be temporarily fixed in the fastener arranging step.
  • the temporary fixing work becomes easier as compared with the case where the other fastener is temporarily fixed to the reinforcing bar.
  • the fitting portion of the first fastener and the second fastener is temporarily fixed, even if the other fastener is moved due to the influence of concrete placement or the like, it is avoided that the fitting is displaced. Can be connected appropriately.
  • heat transfer between the panel body and the housing can be reduced.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.
  • A It is a figure explaining the PC board arrangement
  • B It is a figure which shows the state which has arrange
  • A It is a figure for demonstrating a bar arrangement process.
  • (B) It is a figure which shows the state which has arrange
  • (A) It is sectional drawing which shows the 1st modification of a fastener member.
  • (B) It is sectional drawing which shows the 2nd modification of a fastener member.
  • (C) It is sectional drawing which shows the 3rd modification of a fastener member.
  • D) It is sectional drawing which shows the 4th modification of a fastener member.
  • A) It is sectional drawing which shows the 5th modification of a fastener member.
  • (B) It is sectional drawing which shows the 6th modification of a fastener member.
  • (C) It is sectional drawing which shows the 7th modification of a fastener member.
  • (A) It is a top view which shows the 8th modification of a fastener member.
  • (B) It is a top view which shows the 9th modification of a fastener member.
  • FIG. 1 is a cross-sectional view showing an outer wall structure according to this embodiment.
  • the outer wall structure according to the present embodiment forms an outer wall by connecting a PC [Precast Concrete] plate 20 formed in advance in a factory or the like to the housing 10.
  • a fastener member 100 for connecting the plates 20 is provided.
  • the PC board 20 is a member corresponding to the panel body in the claims, and constitutes at least a part of the outer wall.
  • the panel body in a claim is not restricted to a concrete PC board.
  • the panel body includes a resin panel (for example, a heat insulating panel using expanded polystyrene).
  • the housing 10 is a concrete housing that constitutes the floor of the building. Inside the housing 10, a unit rebar 11 having a main reinforcement 12 and a reinforcement 13 is arranged.
  • the PC board 20 constitutes a part of the outer wall by being joined to other PC boards in the vertical direction and the horizontal direction.
  • the PC board 20 and the other PC board 21 are joined to each other by a fixing bracket (not shown), and a sealing material 22, a backup material 23, and a gasket 24 are disposed in the gap.
  • a heat insulating material 14 made of rock wool, polystyrene foam or the like is filled between the housing 10 and the PC board 20.
  • an appropriate filler buffer material
  • FIG. 2 is a plan view showing the fastener member 100
  • FIG. 3 (a) is a side view showing the fastener member 100 (a side view seen from the housing 10 side).
  • 3B is a cross-sectional view taken along line IIIb-IIIb in FIG. 2
  • FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
  • illustration of Kanzashi muscles 105 and 108 to be described later is omitted.
  • the fastener member 100 shown in FIGS. 1 to 4 is a member formed of a metal such as stainless steel or plated steel.
  • the fastener member 100 may be formed from a ceramic other than a metal, and may be subjected to various coatings.
  • the fastener member 100 includes a first fastener 101 embedded in the PC board 20 and a second fastener 102 embedded in the housing 10.
  • the first fastener 101 is a plate-like member including a main body portion 103 embedded (fixed) in the PC plate 20 and a head portion 104 protruding in a hook shape toward the housing 10.
  • a main body portion 103 embedded (fixed) in the PC plate 20 and a head portion 104 protruding in a hook shape toward the housing 10.
  • two Kanzashi muscles 105 are arranged penetrating in the horizontal direction, and the pull-out strength of the first fastener 101 is increased.
  • a first groove A for fitting with the second fastener 102 is formed between the main body 103 and the head 104.
  • the first groove A is a groove that opens downward, and is fitted to the second fastener 102 in the vertical direction.
  • the first groove A is formed from a bottom surface (first bottom surface) 110 and a side surface 111.
  • the side surface 111 has a pair of narrowest surfaces (first narrowest surfaces) 112A and 112B having the narrowest width and other spaced surfaces (first spaced surfaces) 113A and 113B.
  • the pair of narrowest surfaces 112A and 112B are surfaces formed so as to sandwich the second fastener 102 to be fitted.
  • the pair of narrowest surfaces 112 ⁇ / b> A and 112 ⁇ / b> B are in contact with the second fastener 102 and sandwich the second fastener 102.
  • the pair of narrowest surfaces 112 ⁇ / b> A and 112 ⁇ / b> B are side surfaces that are continuous with the bottom surface 110 in the first groove A, and are formed along the bottom surface 110.
  • the second fastener 102 fitted in the first groove A moves in the front-rear direction (the direction in which the housing 10 and the PC plate 20 face each other) and the upper direction by contacting the pair of narrowest surfaces 112A and 112B and the bottom surface 110. It is regulated.
  • the pair of narrowest surfaces 112A and 112B and the second fastener 102 do not always have to be in contact with each other, and a gap may exist.
  • the separation surfaces 113A and 113B are surfaces formed so as to be separated from the second fastener 102 as compared with the narrowest surfaces 112A and 112B. That is, the separation surface 113A on the PC board 20 side is formed so as to be farther from the second fastener 102 than the narrowest surface 112A on the same side, and the separation surface 113B on the housing 10 side is the narrowest surface on the same side. It is formed so as to be separated from the second fastener 102 as compared with 112B.
  • the separation surfaces 113A and 113B are formed so as to be separated from the second fastener 102 as the distance from the narrowest surfaces 112A and 112B increases (that is, as the distance from the bottom surface 110 of the first groove A increases).
  • the separation surfaces 113A and 113B are formed as smooth curved surfaces that move away from the second fastener 102 as the distance from the narrowest surfaces 112A and 112B increases.
  • the separation surfaces 113A and 113B include all the surfaces of the side surface 111 that are separated from the second fastener 102 (that is, the face plate 107) as compared with the narrowest surfaces 112A and 112B. That is, the side surface 111 is divided into the narrowest surfaces 112A and 112B and the separation surfaces 113A and 113B.
  • the narrowest surfaces 112A and 112B and the separating surfaces 113A and 113B do not need to be distinguished by shape.
  • the narrowest surfaces 112A and 112B are the portions that are in contact with the second fastener 102 to be fitted (or the portion where the second fastener 102 moves and strikes the front and rear direction).
  • the other surfaces can be the separation surfaces 113A and 113B.
  • the separation surfaces 113A and 113B do not have to be a single surface, and may be composed of a plurality of flat surfaces, curved surfaces, or the like, and may have irregularities.
  • the second fastener 102 is provided with a channel-like (cross-sectionally U-shaped) main body 106 embedded (fixed) in the housing 10, and at the tip of the main body 106.
  • This is a member composed of the face plate 107.
  • two kanzashi muscles 108 are arranged penetrating in the horizontal direction in order to increase the pullout strength of the second fastener 102.
  • the face plate 107 is a plate-like flange portion provided substantially parallel to the PC plate 20. As shown in FIG. 3A, the face plate 107 has a second groove B into which the first fastener 101 is fitted.
  • the second groove B is a groove that opens upward at the approximate center of the face plate 107, and is fitted so as to be engaged with the first groove A of the first fastener 101.
  • the face plate 107 is fitted to the plate-like first fastener 101 so as to form a cross when viewed from above (see FIG. 2).
  • the second groove B is formed from a bottom surface (second bottom surface) 120 and a side surface 121.
  • the side surface 121 has a pair of narrowest surfaces (second narrowest surfaces) 122A and 122B having the narrowest width and other spaced surfaces (second spaced surfaces) 123A and 123B.
  • the pair of narrowest surfaces 122A and 122B are surfaces formed so as to sandwich the first fastener 101 to be fitted.
  • the pair of narrowest surfaces 122 ⁇ / b> A and 122 ⁇ / b> B are in contact with the first fastener 101 and sandwich the first fastener 101.
  • the pair of narrowest surfaces 122A and 122B are side surfaces that are continuous with the bottom surface 120 of the second groove B, and are formed along the bottom surface 120.
  • the first fastener 101 fitted in the second groove B is in contact with the pair of narrowest surfaces 122A and 122B and the bottom surface 120 to restrict lateral movement (horizontal direction parallel to the PC plate 20) and downward movement.
  • the pair of narrowest surfaces 122A and 122B and the first fastener 101 do not always have to be in contact with each other, and a gap may exist.
  • the separation surfaces 123A and 123B are formed so as to be separated from the first fastener 101 as compared with the pair of narrowest surfaces 122A and 122B. That is, the separation surface 123A on the PC board 20 side is formed so as to be separated from the first fastener 101 compared to the narrowest surface 122A on the same side, and the separation surface 123B on the housing 10 side is the narrowest surface on the same side. It is formed so as to be separated from the first fastener 101 as compared with 122B.
  • the separation surfaces 123A and 123B are formed so as to be separated from the first fastener 101 as the distance from the narrowest surfaces 122A and 122B increases (that is, as the distance from the bottom surface 120 of the second groove B increases).
  • the separation surfaces 123A and 123B are formed as smooth curved surfaces that move away from the first fastener 101 as the distance from the narrowest surfaces 122A and 122B increases.
  • the separation surfaces 123A and 123B include all of the side surfaces 121 that are separated from the first fastener 101 as compared with the narrowest surfaces 122A and 122B. That is, the side surface 121 is divided into the narrowest surfaces 122A and 122B and the separation surfaces 123A and 123B.
  • the narrowest surfaces 122A and 122B and the separation surfaces 123A and 123B do not need to be distinguished by shape.
  • the narrowest surfaces 122A, 122B are the portions that are in contact with the first fastener 101 to be fitted (or the portion where the first fastener 101 moves and abuts in the lateral direction).
  • the other surfaces can be the separation surfaces 123A and 123B.
  • the separation surfaces 123A and 123B do not have to be a single surface, and may be composed of a plurality of flat surfaces, curved surfaces, or the like, and may have unevenness.
  • the fastener member 100 having the outer wall structure according to the present embodiment described above the first fastener fixed to the PC plate 20 and the second fastener fixed to the housing 10 are fitted to each other.
  • the housing 10 is connected, and the PC board 20 can be supported with respect to the housing 10.
  • the plate-like first fastener 101 and the face plate 107 of the second fastener 102 are fitted to each other, so that the fastener member 100 is fitted as compared with the case where a box-like or block-like fastener is used.
  • the contact area of the part can be reduced, and the heat transfer between the PC board 20 and the housing 10 through the fastener member 100 can be reduced.
  • the fastener member 100 is provided with separation surfaces 113A, 113B, 123A, and 123B that are separated from the mating fasteners in the first groove A and the second groove B that are engaged with each other, and the narrowest surfaces 112A, 112B, 122A,
  • the first fastener 101 and the second fastener 102 are moved in the disengagement direction (that is, the first fastener 101 moves upward and the second fastener 102 moves downward). Since the fasteners 101 and 102 are also allowed to swing around the pair of narrowest surfaces 112A, 112B, 122A, and 122B as a fulcrum, the PC plate 20 is moved (locked) with respect to the housing 10 during an earthquake. It is possible to absorb the displacement by allowing. This contributes to improving the earthquake resistance of the outer wall structure.
  • the separation surfaces 113A, 113B, 123A, and 123B are gradually separated away from the narrowest surfaces 112A, 112B, 122A, and 122B. Since no large step is formed in the grooves A and B, the movement due to the locking of the PC plate 20 is prevented from being caught by the step or the like in an earthquake or the like. This is advantageous in improving the seismic resistance of the outer wall structure because it allows smooth displacement tolerance due to rocking.
  • the pair of narrowest surfaces 112A, 112B, 122A, 122B are formed along the bottom surfaces 110, 120, respectively.
  • the contact area between the first fastener 101 and the second fastener 102 can be further reduced, so that the space between the PC plate 20 and the casing 10 through the fastener member can be reduced. This is advantageous for reducing heat transfer.
  • the outer wall construction method includes a PC board arranging step (panel body arranging step) for arranging the PC plate 20, a bar arranging step for arranging the rods, a fastener arranging step for arranging the second fastener 102, and It has at least a placing step for placing concrete for the frame.
  • a PC board arranging step is performed.
  • Fig.5 (a) is a figure explaining the PC board arrangement
  • a new PC board 20 is arranged with respect to the existing PC board (existing structure) 40 constituting the lower outer wall.
  • the PC board 20 is arranged with respect to an existing structure such as a foundation.
  • the PC plate 20 is a concrete plate member molded in advance at a factory or the like, and a pair of first fasteners 101 is already embedded in the upper part.
  • a pair of lower load receiving fasteners 50 for temporarily receiving the load of the PC plate 20 and a pair of lower anti-fretting fasteners 51 for preventing the PC plate 20 from flaking are provided at the lower part of the PC plate 20.
  • the PC board 20 may be previously formed with an opening for a window, a connection projection for a balcony, or the like.
  • FIG.5 (b) is a figure which shows the state which has arrange
  • the PC board 20 is arranged so as to continue to the lower PC board 40.
  • the lower part of the PC board 20 is supported by fixing a lower load receiving fastener 50 and a lower anti-fretting fastener 51 to connection fittings 52 and 53 provided on the upper part of the PC board 40.
  • a rod-like support member 54 is disposed obliquely.
  • the PC column member may support the PC plate 20 instead of the rod-shaped support member 54.
  • Fig.6 (a) is a figure for demonstrating a bar arrangement process.
  • the frame 60 for the frame is assembled with the PC plate 20 and the unit reinforcing bars 11 are arranged.
  • the unit reinforcing bar 11 is configured by assembling reinforcing bars in a unit shape in advance at a factory or the like. Adoption of the unit rebar 11 is also advantageous in the on-site bar arrangement.
  • FIG. 6B is a diagram illustrating a state in which the bar arrangement is arranged in the bar arrangement process.
  • the unit reinforcing bars 11 are arranged on the mold 60 so as to be at the same height as the first fastener 101 of the PC plate 20.
  • the unit reinforcing bars 11 can be arranged simply by lifting them with a crane or the like and lowering them to a predetermined position.
  • FIG. 7 is a view for explaining a fastener arranging step.
  • the second fastener 102 is arranged so as to be fitted to the first fastener 101 embedded in the PC board 20.
  • the second fastener 102 is disposed so that a part of the main body portion 106 enters the unit rebar 11.
  • the second fastener 102 is temporarily fixed in a state of being fitted to the first fastener 101.
  • the second fastener 102 is temporarily fixed by attaching a temporary fixing band 70 to a fitting portion (a portion where the first groove A and the second groove B are engaged) with the first fastener 101.
  • a band having elasticity can be adopted as the temporarily fixing band 70, but an aspect in which a band having no elasticity is wound and temporarily fixed may be used.
  • the temporary fixing band 70 may be removed after the completion of construction, or may not be removed. In the case where it is not removed even after the completion of construction, it is preferable that the strength of temporary fixing by the temporary fixing band 70 does not hinder the locking of the PC board 20.
  • temporary fixing is performed using the temporary fixing band 70, but the temporary fixing method is not limited to that using the temporary fixing band 70.
  • temporary fixing may be performed by arranging a temporary fixing pin that penetrates the fitting portion of the first fastener 101 and the second fastener 102.
  • the temporarily fixing pin has a strength that does not hinder the locking of the PC board 20 (that is, a strength at which the temporarily fixing pin is deformed or broken when locking is necessary).
  • FIG. 8 is a diagram for explaining the placing process.
  • concrete is placed so as to embed a part of the main body portion 106 of the second fastener 102 and the unit rebar 11.
  • the heat insulating material 14 is attached to the first fastener 101 side of the PC board 20 before placing concrete.
  • most of the heat insulating material 14 is attached to the PC board 20 at a factory, and only a portion corresponding to the first fastener 101 may be attached on site.
  • the concrete placed in the mold 60 is compacted and finished, and after curing, the concrete hardens and exhibits strength, thereby forming the frame 10.
  • the second fastener 102 is in a state in which a part of the main body portion 106 is embedded in the housing 10.
  • the PC board 20 can be supported by the housing 10 via the second fastener 102 and the first fastener 101 to be fitted.
  • the temporary lower load receiving fastener 50 and the support member 54 are removed so that the PC board 20 is supported by the housing 10 and the outer wall is constructed.
  • the PC plate 20 is disposed first, the second fastener 102 is disposed so as to be fitted to the first fastener 101 of the PC plate 20, and then the second fastener.
  • the structure of the housing 10 and the connection of the PC board 20 and the housing 10 can be performed at a time, and the work efficiency at the site is improved.
  • the outer wall construction method since the main body portion 106 of the second fastener 102 is embedded in the housing 10 while being fitted to the first fastener 101, the second fastener 102 fixed to the housing 10 side and the first fastener Positioning with the fastener 101 becomes unnecessary, and the work is simplified. Moreover, according to this outer wall construction method, since the second fastener 102 is disposed after the bar arrangement process, the second fastener 102 does not interfere with the bar arrangement, and the bar arrangement work can be efficiently performed. In particular, when a unit reinforcing bar is employed, it can be arranged simply by lifting and arranging the unit reinforcing bar, so that the construction period for constructing the outer wall can be greatly shortened.
  • the fitting portion of the first fastener 101 and the second fastener 102 is temporarily fixed in the fastener arranging step, so that the second fastener 102 is temporarily fixed to the reinforcing bar.
  • the temporary fixing work becomes easy.
  • the fitting portion of the first fastener 101 and the second fastener 102 is temporarily fixed, even if the second fastener 102 moves due to the influence of concrete placement or the like, the fitting with the first fastener 101 is displaced. Therefore, the PC board 20 and the housing 10 can be appropriately connected.
  • the heat transfer between the PC board 20 and the housing 10 through the fastener member 100 can be reduced by employing the fastener member 100 having the above-described configuration.
  • FIG. 9A is a cross-sectional view showing a first modification of the fastener member.
  • the fastener member 200 shown in FIG. 9A differs from the fastener member 100 shown in FIG. 4 only in the shape of the first groove A1.
  • the first groove A1 is different from the first groove A shown in FIG. 4 in that the main body 203 side of the first fastener 201 of the side surface 211 is a single plane. That is, no separation surface is formed on the side surface 211 on the main body 203 side.
  • the plane as a whole corresponds to the narrowest surface 212A, and sandwiches the second fastener 102 in a pair with the opposite narrowest surface 212B.
  • the configuration in which the left and right sides 211 are switched that is, the surface on the main body 203 side of the first fastener 201 and the surface on the head 204 side of the side surface 211.
  • a configuration in which is replaced is also included in the present invention.
  • FIG. 9B is a cross-sectional view showing a second modification of the fastener member.
  • the fastener member 300 shown in FIG. 9B is different from the fastener member 100 shown in FIG. 4 only in the shape of the first groove A2.
  • the first groove A2 of the fastener member 300 has a pair of narrowest surfaces 312A and 312B and separation surfaces 313A and 313B that form the side surface 311 as compared with the first groove A shown in FIG.
  • the present invention includes a case where the side surface 311 does not have a curved surface and is constituted by a plurality of planes.
  • FIG. 9C is a cross-sectional view showing a third modification of the fastener member.
  • the fastener member 400 shown in FIG. 9C is different from the fastener member 100 shown in FIG. 4 only in the shape of the first groove A3 and the cross-sectional shape of the face plate 407 of the second fastener 402.
  • the first groove A3 is different from the first groove A shown in FIG. 4 in that a pair of narrowest surfaces 412A and 412B are formed in the middle of the first groove A3. Yes. That is, the pair of narrowest surfaces 412A and 412B are not formed along the bottom surface 410 of the first groove A3. Further, the first groove A3 has a pair of narrowest surfaces 412A and 412B constituting the side surface 411, bottom side separation surfaces 413A and 413B, and opening side separation compared to the first groove A shown in FIG. Another difference is that the surfaces 414A and 414B are each composed of a plane. Such a configuration shown in FIG. 9C is also included in the present invention.
  • the taper becomes closer to the bottom surface 410 of the first groove A3.
  • the fitting portion (the center upper end portion) of the face plate 407 into a trapezoidal cross section so that the surface is in contact with the bottom surface 410 of the first groove A3 (that is, the bottom surface of the second groove) is narrowed. The area can be reduced and the heat transfer can be further reduced. It is not essential to form the face plate 407 in this way.
  • FIG. 9D is a cross-sectional view showing a fourth modification of the fastener member.
  • the fastener member 500 shown in FIG. 9D is configured by forming the side surface 411 of the first groove A3 of the fastener member 400 shown in FIG. 9C described above from a curved surface.
  • the pair of narrowest surfaces 512A and 512B constituting the side surface 511 of the first groove A4 the separation surfaces 513A and 513B on the bottom side, and the separation surfaces 514A and 514B on the opening side are formed from curved surfaces.
  • the separation surfaces 513A and 513B on the bottom side, and the separation surfaces 514A and 514B on the opening side are formed from curved surfaces.
  • the face plate 507 in contact with the bottom surface 510 of the first groove A4.
  • the fitting portion By forming the fitting portion to be rounded, the contact surface with the bottom surface 510 of the first groove A4 (that is, the bottom surface of the second groove) can be narrowed to reduce the contact area, and heat transfer Can be further reduced. It is not essential to form the face plate 507 in this way. Further, the face plate 507 shown in FIG. 9D and the face plate 407 shown in FIG. 9C can be used interchangeably.
  • one side surface is formed from one plane as shown in FIG. 9A, and the side surface forms a separation surface.
  • the case where it does not exist is also included in the present invention.
  • FIG. 10A is a cross-sectional view showing a fifth modification of the fastener member.
  • the fastener member 600 shown in FIG. 10A differs from the fastener member 100 shown in FIG. 3B only in the shape of the second groove B1 and the shape of the main body portion 606 of the second fastener 602.
  • the second groove B1 of the fastener member 600 has a pair of narrowest surfaces 622A, 622B and a separation surface 623A, which constitute the side surface 621, as compared with the second groove B shown in FIG. Only the point that 623B is a plane is different. That is, the case where the side surface 621 does not have a curved surface and is configured by a plurality of planes is included in the present invention.
  • the shape of the main body 606 of the second fastener 602 is not necessarily a channel shape, and a plate-like shape can also be adopted. In this case, a kansai streak that penetrates in the vertical direction may be arranged.
  • FIG. 10B is a cross-sectional view showing a sixth modification of the fastener member.
  • the fastener member 700 shown in FIG. 10 (b) has the shape of the second groove B2, the shape of the main body 606 of the second fastener 602, and the first fastener 701. Only the shape of the fitting part is different.
  • the second groove B2 of the fastener member 700 has a pair of narrowest surfaces 722A and 722B formed in the middle of the second groove B2 as compared to the second groove B shown in FIG. And the point that the side surface 721 is composed of a plurality of planes is different. That is, the pair of narrowest surfaces 722A and 722B is not formed along the bottom surface 720 of the second groove B2, but the pair of narrowest surfaces 722A and 722B, the bottom side separation surfaces 723A and 723B, and the opening side
  • the present invention also includes a case in which the separation surfaces 724A and 724B are each composed of a flat surface.
  • the taper becomes closer to the bottom surface 720 of the second groove B2.
  • the fitting portion of the first fastener 701 into a trapezoidal cross section so as to become, the surface that contacts the bottom surface 720 of the second groove B2 (that is, the bottom surface of the first groove) is narrowed to reduce the contact area Heat transfer can be further reduced. Note that it is not essential to form the first fastener 701 in this way.
  • the main body 706 of the second fastener 702 may have an H-shaped cross section.
  • FIG. 10C is a cross-sectional view showing a seventh modification of the fastener member.
  • a fastener member 800 shown in FIG. 10 (c) is configured by forming the side surface 721 of the second groove B2 of the fastener member 700 shown in FIG. 10 (b) described above from a curved surface.
  • the present invention includes the case where the pair of narrowest surfaces 822A and 822B, the bottom-side separation surfaces 823A and 823B, and the opening-side separation surfaces 824A and 824B that form the side surface 821 of the second groove B3 are curved surfaces. include.
  • the fitting portion of the fastener 801 so as to have a roundness, the surface that contacts the bottom surface 820 of the second groove B3 (that is, the bottom surface of the first groove) can be narrowed to reduce the contact area. Heat transfer can be further reduced. Note that it is not essential to form the first fastener 801 in this way.
  • the main body 806 of the second fastener 802 may have a substantially V-shaped cross section.
  • FIG. 11A is a cross-sectional view showing an eighth modification of the fastener member.
  • the fastener member 900 shown in FIG. 11A differs from the fastener member 100 shown in FIG. 2 only in the shape of the second groove B4.
  • the side surface 922 of the second groove B4 is formed in a trapezoidal shape when viewed from above, and only the tip of the trapezoid is in contact with the first fastener 101. That is, the trapezoidal tip portion of the side surface 922 viewed from above corresponds to the narrowest surfaces 922A and 922B. The portions other than the tip portion correspond to the separation surfaces 923A and 923B that are separated from the first fastener 101. According to such a configuration, since the contact area between the first fastener 101 and the second fastener 902 can be further reduced, heat transfer can be further reduced.
  • FIG. 11B is a cross-sectional view showing a ninth modification of the fastener member.
  • the fastener member 1000 shown in FIG. 11B is different from the fastener member 100 shown in FIG. 2 only in the shape of the second groove B5.
  • the side surface 1022 of the second groove B5 is formed to be semicircular when viewed from above, and only the semicircular tip is in contact with the first fastener 101. That is, of the side surface 1022, the semicircular tip viewed from above corresponds to the narrowest surfaces 1022A and 1022B. The portions other than the tip correspond to the separation surfaces 1023A and 1023B which are separated from the first fastener 101. According to such a configuration, since the contact area between the first fastener 101 and the second fastener 1002 can be further reduced, heat transfer can be further reduced.
  • the side surface 111 of the first groove A of the first fastener 101 may be formed in a trapezoidal shape or a semicircular shape when viewed from below. Thereby, reduction of the further heat transfer is attained.
  • FIGS. 9 to 11 described above can be combined with each other. That is, any of the modifications shown in FIGS. 10 (a) to 10 (c) may be combined with the modification shown in FIG. 9 (a), and further, FIG. 11 (a) or FIG. ) May be used in combination. The same applies to FIGS. 9B to 9D.
  • the shape of the contact portion of the fastener is appropriately selected according to the load applied to the portion. That is, durability can be secured as a surface contact (for example, contact by a flat surface) in a portion with a large load, and a contact area can be reduced as a point contact (for example, contact by a curved surface).
  • the present invention is not limited to the above-described modification.
  • the first fastener and the second fastener may be used interchangeably. That is, the aspect which fixes a 1st fastener with respect to a housing and fixes a 2nd fastener with respect to a PC board may be sufficient. In this case, it arrange
  • various shapes can be employed for the first fastener and the second fastener.
  • the fastener member has the above-described fitting structure (the first fastener and the second fastener described above, the first groove and It is only necessary to have a structure in which the second grooves are fitted to each other.
  • the remaining fastener members are not limited to the above-described fitting structure.
  • the face plate of the second fastener on the housing side is a rectangular plate that does not have a groove, and this rectangular plate serves as the first groove of the first fastener.
  • the structure which fits may be sufficient. In this case, the horizontal movement of the first fastener can be slid on the face plate without being restricted, and the horizontal displacement of the PC plate due to locking can be partially allowed.
  • the present invention can be used for a fastener member that can reduce heat transfer between the panel body and the casing, an outer wall structure including the fastener member, and an outer wall construction method.

Abstract

The present invention is a fastener member (100) coupling a PC panel (20) and a frame (10). The fastener member (100) comprises a plate-form first fastener (101) fixed to one of the PC panel (20) and the frame (10) and in which a first groove (A) for fitting is formed, and a second fastener (102) having a body (106), fixed to the other of the PC panel (20) and the frame (10), and a face plate (107) in which a second groove (B) is formed for fitting with the first groove (A). The first groove (A) has a pair of first narrowest faces (112A, 112B), first separation faces (113A, 113B), and a first bottom face (110), and the second groove (B) has a pair of second narrowest faces (122A, 122B), second separation faces (123A, 123B), and a second bottom face (120).

Description

ファスナー部材、ファスナー部材を備えた外壁構造、及び外壁施工方法Fastener member, outer wall structure provided with fastener member, and outer wall construction method
　本発明は、パネル体と躯体とを接続するファスナー部材、ファスナー部材を備えた外壁構造、及び外壁施工方法に関する。 The present invention relates to a fastener member for connecting a panel body and a casing, an outer wall structure provided with the fastener member, and an outer wall construction method.
　従来、ＰＣ［Precast　Concrete］板を用いた外壁構造に関する技術文献として、例えば特許文献１，２が知られている。特許文献１には、ＰＣ板にファスナー部材を埋設し、当該ファスナー部材の先端側をコンクリート打設によって躯体内に埋め込むことにより、ＰＣ板と躯体とを接続した外壁構造が示されている。 Conventionally, for example, Patent Documents 1 and 2 are known as technical documents related to an outer wall structure using a PC [Precast Concrete] plate. Patent Document 1 discloses an outer wall structure in which a PC plate and a casing are connected by embedding a fastener member in a PC plate and embedding the front end side of the fastener member in a casing by placing concrete.
　また、特許文献２には、ＰＣ板に埋設されたＰＣファスナーを躯体側に埋設された固定金具が受ける構成とすることで、ＰＣ板と躯体とを接続する外壁構造が示されている。 Also, Patent Document 2 shows an outer wall structure that connects a PC board and a chassis by receiving a PC fastener embedded in the PC board by a fixing bracket embedded on the chassis side.
特開２０００－３５２１９６号公報JP 2000-352196 A 特開２０００－３２８７０１号公報JP 2000-328701 A
　ところで、建物には外部から建物内部に熱が移動することを避けるため、様々な工夫が施されている。しかしながら、上述したファスナー部材を介した熱移動については、未だ着目されておらず、改善の余地がある。 By the way, various ingenuity has been applied to the building to avoid heat transfer from outside to inside the building. However, the above-described heat transfer through the fastener member has not yet received attention, and there is room for improvement.
　そこで、本発明は、パネル体と躯体との間の熱移動を低減することができるファスナー部材、ファスナー部材を備えた外壁構造、及び外壁施工方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a fastener member that can reduce heat transfer between the panel body and the casing, an outer wall structure including the fastener member, and an outer wall construction method.
　上記課題を解決するため、本発明は、パネル体と躯体とを接続するためのファスナー部材であって、パネル体及び躯体のうち一方に固定され、嵌合用の第１の溝が形成された板状の第１ファスナーと、パネル体及び躯体のうち他方に固定された本体部と、第１の溝に嵌合する第２の溝が形成された面板と、を有する第２ファスナーと、を備え、第１の溝は、第２ファスナーの面板を挟むように形成された一対の第１最狭面と、第１最狭面と比べて面板から離れるように形成された第１離間面と、面板に当接する第１底面と、を有し、第２の溝は、第１ファスナーを挟むように形成された一対の第２最狭面と、第２最狭面と比べて第１ファスナーから離れるように形成された第２離間面と、第１ファスナーの第１底面に当接する第２底面と、を有することを特徴とする。 In order to solve the above-mentioned problems, the present invention is a fastener member for connecting a panel body and a casing, and is a plate fixed to one of the panel body and the casing and having a first groove for fitting formed therein. A first fastener having a shape, a main body fixed to the other of the panel body and the housing, and a second fastener having a face plate formed with a second groove that fits into the first groove. The first groove is a pair of first narrowest surfaces formed so as to sandwich the face plate of the second fastener, and a first spacing surface formed so as to be separated from the face plate compared to the first narrowest surface, A first bottom surface abutting the face plate, and the second groove is a pair of second narrowest surfaces formed so as to sandwich the first fastener, and the first fastener compared to the second narrowest surface. A second spaced-apart surface formed so as to be separated; a second bottom surface that is in contact with the first bottom surface of the first fastener; Characterized in that it has.
　本発明に係るファスナー部材によれば、パネル体に固定されたファスナーと躯体に固定されたファスナーとを嵌合させることで、パネル体と躯体とが接続され、躯体に対してパネル体を支持させることができる。しかも、このファスナー部材では、板状の第１ファスナーと第２ファスナーの面板とを嵌合させる構成とすることで、箱状やブロック状のファスナーを用いる場合と比べて、嵌合部分の接触面積を減らすことができ、ファスナー部材を通じたパネル体及び躯体の間の熱移動を低減できる。更に、このファスナー部材では、互いにかみ合う第１の溝及び第２の溝において相手側のファスナーから離間する離間面を設け、最狭面や底面により相手側の移動を規制する構成とすることで、接触面積を更に少なくできるので、より一層の熱移動の低減が可能となる。また、このファスナー部材では、第１ファスナー及び第２ファスナーの嵌合が外れる方向への移動を許容すると共に、一対の最狭面を支点とした各ファスナーの揺動も許容するので、地震時などには躯体に対するパネル体の移動（ロッキング）を許容して変位を吸収することができる。このことは、ファスナー部材を備えた壁構造の耐震性向上に寄与する。 According to the fastener member of the present invention, the panel body and the casing are connected by fitting the fastener fixed to the panel body and the fastener fixed to the casing, and the panel body is supported with respect to the casing. be able to. In addition, in this fastener member, the contact area of the fitting portion is made by fitting the plate-like first fastener and the face plate of the second fastener, compared to the case of using a box-like or block-like fastener. The heat transfer between the panel body and the casing through the fastener member can be reduced. Furthermore, in this fastener member, by providing a separation surface that is spaced apart from the mating fastener in the first groove and the second groove that mesh with each other, the movement of the mating side is regulated by the narrowest surface or the bottom surface, Since the contact area can be further reduced, the heat transfer can be further reduced. In addition, since this fastener member allows movement in the direction in which the first fastener and the second fastener are disengaged, and also allows swinging of each fastener with the pair of narrowest surfaces as fulcrums, it is possible during an earthquake, etc. Can absorb the displacement by allowing the movement (rocking) of the panel body relative to the housing. This contributes to improving the earthquake resistance of the wall structure provided with the fastener member.
　本発明に係るファスナー部材において、第１離間面は、一対の第１最狭面から遠ざかるほど面板から離れるように形成されており、第２離間面は、一対の第２最狭面から遠ざかるほど第１ファスナーから離れるように形成されていてもよい。 In the fastener member according to the present invention, the first spacing surface is formed so as to move away from the face plate as the distance from the pair of first narrowest surfaces increases, and the second spacing surface increases from the pair of second narrowest surfaces. You may form so that it may leave | separate from a 1st fastener.
　このファスナー部材によれば、最狭面から遠ざかるほど相手側のファスナーから次第に離れるように離間面を形成することで、溝内に大きな段差が生じないので、地震などにおいて、パネル体のロッキングによる移動が段差などに引っ掛かることが避けられる。このことは、ロッキングによる変位の許容をスムーズなものとするので、ファスナー部材を備えた壁構造の耐震性向上に有利である。 According to this fastener member, the separation surface is formed so as to gradually move away from the mating fastener as the distance from the narrowest surface increases, so that a large step does not occur in the groove. Can be prevented from being caught by steps. This is advantageous in improving the seismic resistance of the wall structure provided with the fastener member, since the tolerance of displacement due to locking is made smooth.
　本発明に係るファスナー部材において、一対の第１最狭面は、第１底面に沿って形成されており、一対の第２最狭面は、第２底面に沿って形成されていてもよい。 In the fastener member according to the present invention, the pair of first narrowest surfaces may be formed along the first bottom surface, and the pair of second narrowest surfaces may be formed along the second bottom surface.
　このファスナー部材によれば、一対の最狭面を溝の途中に形成する場合と比べて、第１ファスナーと第２ファスナーの接触面積を一層少なくすることができるので、ファスナー部材を通じた熱移動の低減に有利である。 According to this fastener member, since the contact area between the first fastener and the second fastener can be further reduced as compared with the case where the pair of narrowest surfaces are formed in the middle of the groove, the heat transfer through the fastener member can be reduced. It is advantageous for reduction.
　また、本発明は、上述したファスナー部材を備えた外壁構造であって、外壁の少なくとも一部を構成するパネル体がファスナー部材により躯体に接続されていることを特徴とする。 Further, the present invention is an outer wall structure provided with the above-described fastener member, wherein a panel body constituting at least a part of the outer wall is connected to the housing by the fastener member.
　本発明に係る外壁構造によれば、パネル体に固定されたファスナーと躯体に固定されたファスナーとを嵌合させることで、パネル体と躯体とが接続され、躯体に対してパネル体を支持させることができる。しかも、この外壁構造では、板状の第１ファスナーと第２ファスナーの面板とを嵌合させる構成とすることで、箱状やブロック状のファスナーを用いる場合と比べて、嵌合部分の接触面積を減らすことができ、ファスナー部材を通じたパネル体及び躯体の間の熱移動を低減できる。更に、この外壁構造では、互いにかみ合う第１の溝及び第２の溝において相手側のファスナーから離間する離間面を設け、最狭面や底面により相手側の移動を規制する構成とすることで、接触面積を更に少なくできるので、より一層の熱移動の低減が可能となる。また、この外壁構造では、第１ファスナー及び第２ファスナーの嵌合が外れる方向への移動を許容すると共に、一対の最狭面を支点とした各ファスナーの揺動も許容するので、地震時などには躯体に対するパネル体の移動（ロッキング）を許容して変位を吸収することができる。このことは、外壁構造の耐震性向上に寄与する。 According to the outer wall structure according to the present invention, the panel body and the housing are connected by fitting the fastener fixed to the panel body and the fastener fixed to the housing, and the panel body is supported by the housing. be able to. Moreover, in this outer wall structure, the contact area of the fitting portion is made by fitting the plate-like first fastener and the face plate of the second fastener, compared to the case of using a box-like or block-like fastener. The heat transfer between the panel body and the casing through the fastener member can be reduced. Furthermore, in this outer wall structure, by providing a separation surface that separates from the mating fastener in the first groove and the second groove that mesh with each other, the movement of the mating side is regulated by the narrowest surface or the bottom surface, Since the contact area can be further reduced, the heat transfer can be further reduced. In addition, this outer wall structure allows movement in a direction in which the first fastener and the second fastener are disengaged, and also allows swinging of each fastener with a pair of narrowest surfaces as fulcrums, so that an earthquake or the like can occur. Can absorb the displacement by allowing the movement (rocking) of the panel body relative to the housing. This contributes to improving the earthquake resistance of the outer wall structure.
　また、本発明は、上述した外壁構造を施工する外壁施工方法であって、第１ファスナー及び第２ファスナーのうち一方のファスナーが固定されたパネル体を既設構造体に対して配置するパネル体配置工程と、パネル体配置工程の後、躯体用の配筋を行う配筋工程と、配筋工程の後、第１ファスナー及び第２ファスナーのうち他方のファスナーを第１の溝及び第２の溝が嵌合するように配置するファスナー配置工程と、ファスナー配置工程の後、他方のファスナーの一部を埋め込むように躯体用のコンクリートを打設する打設工程と、を備えることを特徴とする。 Moreover, this invention is the outer wall construction method which constructs the outer wall structure mentioned above, Comprising: Panel body arrangement | positioning which arrange | positions the panel body to which one fastener was fixed among the 1st fastener and the 2nd fastener with respect to the existing structure After the step and the panel body arranging step, the bar arranging step for arranging the rods, and after the bar arranging step, the other one of the first fastener and the second fastener is replaced with the first groove and the second groove. A fastener arranging step of arranging so as to fit, and a placing step of placing concrete for the frame so as to embed a part of the other fastener after the fastener arranging step.
　本発明に係る外壁施工方法によれば、先にパネル体を配置し、パネル体側のファスナーに嵌合するように他方のファスナーを配置した後、他方のファスナーの一部を埋め込むようにコンクリートを打設することで、躯体の構成とパネル体及び躯体の接続とを一度に行うことができ、現場の作業効率が向上する。また、この外壁施工方法によれば、嵌合した状態で他方のファスナーの一部をコンクリート打設により躯体内に埋め込むので、躯体側に埋設されたファスナーとパネル体側に埋設されたファスナーとの位置合わせが不要となり、作業が簡素化する。しかも、この外壁施工方法によれば、配筋工程の後に他方のファスナーを配置するので、他方のファスナーが配筋の妨げとなることがなく、配筋作業を効率良く進めることができる。また、この外壁施工方法によれば、上述した構成のファスナー部材を採用することで、ファスナー部材を通じたパネル体と躯体との間の熱移動を低減することができる。 According to the outer wall construction method of the present invention, after placing the panel body first and placing the other fastener so as to fit the fastener on the panel body side, the concrete is cast so as to embed a part of the other fastener. By installing, the structure of a housing and the connection of a panel body and a housing can be performed at once, and the work efficiency on the site improves. Further, according to this outer wall construction method, since a part of the other fastener is embedded in the housing by concrete placement in the fitted state, the position of the fastener embedded on the housing side and the fastener embedded on the panel body side Matching is not necessary, and the work is simplified. Moreover, according to this outer wall construction method, the other fastener is disposed after the bar arrangement process, so that the other fastener does not interfere with the bar arrangement, and the bar arrangement work can be performed efficiently. Moreover, according to this outer wall construction method, the heat transfer between the panel body and the casing through the fastener member can be reduced by employing the fastener member having the above-described configuration.
　本発明に係る外壁施工方法においては、ファスナー配置工程において、第１ファスナー及び第２ファスナーの嵌合部分を仮固定してもよい。 In the outer wall construction method according to the present invention, the fitting portion of the first fastener and the second fastener may be temporarily fixed in the fastener arranging step.
　この外壁施工方法によれば、他方のファスナーを配筋などに仮固定する場合と比べて、仮固定の作業が容易となる。しかも、第１ファスナー及び第２ファスナーの嵌合部分を仮固定するので、コンクリート打設などの影響で他方のファスナーが移動したとしても嵌合にズレが生じることが避けられるので、パネル体及び躯体を適切に接続させることができる。 According to this outer wall construction method, the temporary fixing work becomes easier as compared with the case where the other fastener is temporarily fixed to the reinforcing bar. In addition, since the fitting portion of the first fastener and the second fastener is temporarily fixed, even if the other fastener is moved due to the influence of concrete placement or the like, it is avoided that the fitting is displaced. Can be connected appropriately.
　本発明によれば、パネル体と躯体との間の熱移動を低減することができる。 According to the present invention, heat transfer between the panel body and the housing can be reduced.
本実施形態に係る外壁構造を示す断面図である。It is sectional drawing which shows the outer wall structure which concerns on this embodiment. 図１のファスナー部材を示す平面図である。It is a top view which shows the fastener member of FIG. （ａ）図１のファスナー部材を示す側面図である。（ｂ）図２のIIIｂ－IIIｂ線に沿った断面図である。(A) It is a side view which shows the fastener member of FIG. (B) It is sectional drawing along the IIIb-IIIb line | wire of FIG. 図２のIV－IV線に沿った断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. （ａ）本実施形態に係る外壁施工方法のＰＣ板配置工程を説明する図である。（ｂ）ＰＣ板配置工程でＰＣ板を配置した状態を示す図である。(A) It is a figure explaining the PC board arrangement | positioning process of the outer wall construction method which concerns on this embodiment. (B) It is a figure which shows the state which has arrange | positioned the PC board at the PC board arrangement | positioning process. （ａ）配筋工程を説明するための図である。（ｂ）配筋工程で配筋を配置した状態を示す図である。(A) It is a figure for demonstrating a bar arrangement process. (B) It is a figure which shows the state which has arrange | positioned the bar arrangement at the bar arrangement process. ファスナー配置工程を説明するための図である。It is a figure for demonstrating a fastener arrangement | positioning process. 打設工程を説明するための図である。It is a figure for demonstrating a placement process. （ａ）ファスナー部材の第１の変形例を示す断面図である。（ｂ）ファスナー部材の第２の変形例を示す断面図である。（ｃ）ファスナー部材の第３の変形例を示す断面図である。（ｄ）ファスナー部材の第４の変形例を示す断面図である。(A) It is sectional drawing which shows the 1st modification of a fastener member. (B) It is sectional drawing which shows the 2nd modification of a fastener member. (C) It is sectional drawing which shows the 3rd modification of a fastener member. (D) It is sectional drawing which shows the 4th modification of a fastener member. （ａ）ファスナー部材の第５の変形例を示す断面図である。（ｂ）ファスナー部材の第６の変形例を示す断面図である。（ｃ）ファスナー部材の第７の変形例を示す断面図である。(A) It is sectional drawing which shows the 5th modification of a fastener member. (B) It is sectional drawing which shows the 6th modification of a fastener member. (C) It is sectional drawing which shows the 7th modification of a fastener member. （ａ）ファスナー部材の第８の変形例を示す平面図である。（ｂ）ファスナー部材の第９の変形例を示す平面図である。(A) It is a top view which shows the 8th modification of a fastener member. (B) It is a top view which shows the 9th modification of a fastener member.
　以下、本発明の好適な実施形態について、図面を参照して詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
　図１は、本実施形態に係る外壁構造を示す断面図である。図１に示されるように、本実施形態に係る外壁構造は、工場などで予め成形されたＰＣ［Precast　Concrete］板２０を躯体１０に接続することで外壁を構成しており、躯体１０及びＰＣ板２０を接続するファスナー部材１００を備えている。 FIG. 1 is a cross-sectional view showing an outer wall structure according to this embodiment. As shown in FIG. 1, the outer wall structure according to the present embodiment forms an outer wall by connecting a PC [Precast Concrete] plate 20 formed in advance in a factory or the like to the housing 10. A fastener member 100 for connecting the plates 20 is provided.
　ＰＣ板２０は、請求の範囲におけるパネル体に相当する部材であり、外壁の少なくとも一部を構成する。但し、請求の範囲におけるパネル体は、コンクリート製のＰＣ板に限られない。パネル体には、樹脂製のパネル（例えば発泡ポリスチレンを使った断熱パネル）なども含まれる。 The PC board 20 is a member corresponding to the panel body in the claims, and constitutes at least a part of the outer wall. However, the panel body in a claim is not restricted to a concrete PC board. The panel body includes a resin panel (for example, a heat insulating panel using expanded polystyrene).
　躯体１０は、建物の床を構成するコンクリート製の躯体である。躯体１０の内部には、主筋１２及び肋筋１３を有するユニット鉄筋１１が配置されている。ＰＣ板２０は、縦方向及び横方向で他のＰＣ板と接合されることにより外壁の一部を構成している。ＰＣ板２０と他のＰＣ板２１とは、図示しない固定金具によって互いに接合されており、その隙間にはシーリング材２２、バックアップ材２３、及びガスケット２４が配置されている。 The housing 10 is a concrete housing that constitutes the floor of the building. Inside the housing 10, a unit rebar 11 having a main reinforcement 12 and a reinforcement 13 is arranged. The PC board 20 constitutes a part of the outer wall by being joined to other PC boards in the vertical direction and the horizontal direction. The PC board 20 and the other PC board 21 are joined to each other by a fixing bracket (not shown), and a sealing material 22, a backup material 23, and a gasket 24 are disposed in the gap.
　また、躯体１０とＰＣ板２０との間には、ロックウールや発泡スチロールなどからなる断熱材１４が充填されている。なお、必ずしも躯体１０とＰＣ板２０との間に断熱材を配置する必要はなく、適切な充填材（緩衝材）が配置されていればよい。 Further, a heat insulating material 14 made of rock wool, polystyrene foam or the like is filled between the housing 10 and the PC board 20. In addition, it is not always necessary to arrange a heat insulating material between the housing 10 and the PC plate 20, and an appropriate filler (buffer material) may be arranged.
　図２はファスナー部材１００を示す平面図、図３（ａ）はファスナー部材１００を示す側面図（躯体１０側から見た側面図）である。また、図３（ｂ）は図２のIIIｂ－IIIｂ線に沿った断面図、図４は図２のIV－IV線に沿った断面図である。なお、図３（ａ）及び図３（ｂ）においては、後述するカンザシ筋１０５，１０８の図示を省略している。 FIG. 2 is a plan view showing the fastener member 100, and FIG. 3 (a) is a side view showing the fastener member 100 (a side view seen from the housing 10 side). 3B is a cross-sectional view taken along line IIIb-IIIb in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. In FIG. 3A and FIG. 3B, illustration of Kanzashi muscles 105 and 108 to be described later is omitted.
　図１～図４に示すファスナー部材１００は、例えばステンレスやメッキ処理したスチールなどの金属から形成された部材である。なお、ファスナー部材１００は、金属の他、セラミックなどから形成してもよく、各種のコーティングを施してもよい。ファスナー部材１００は、ＰＣ板２０に埋設された第１ファスナー１０１と、躯体１０に埋設された第２ファスナー１０２と、から構成されている。 The fastener member 100 shown in FIGS. 1 to 4 is a member formed of a metal such as stainless steel or plated steel. In addition, the fastener member 100 may be formed from a ceramic other than a metal, and may be subjected to various coatings. The fastener member 100 includes a first fastener 101 embedded in the PC board 20 and a second fastener 102 embedded in the housing 10.
　第１ファスナー１０１は、ＰＣ板２０に埋設（固定）された本体部１０３と、躯体１０に向かってフック状に突出した頭部１０４と、からなる板状の部材である。本体部１０３には、二本のカンザシ筋１０５が水平方向に貫通して配置されており、第１ファスナー１０１の引き抜き強度を高めている。 The first fastener 101 is a plate-like member including a main body portion 103 embedded (fixed) in the PC plate 20 and a head portion 104 protruding in a hook shape toward the housing 10. In the main body 103, two Kanzashi muscles 105 are arranged penetrating in the horizontal direction, and the pull-out strength of the first fastener 101 is increased.
　本体部１０３と頭部１０４との間には、第２ファスナー１０２と嵌合するための第１の溝Ａが形成されている。第１の溝Ａは、下向きに開口した溝であり、第２ファスナー１０２に対して上下方向で嵌合する。 A first groove A for fitting with the second fastener 102 is formed between the main body 103 and the head 104. The first groove A is a groove that opens downward, and is fitted to the second fastener 102 in the vertical direction.
　図４に示されるように、第１の溝Ａは、底面（第１底面）１１０及び側面１１１から形成されている。側面１１１は、最も幅が狭い一対の最狭面（第１最狭面）１１２Ａ，１１２Ｂと、それ以外の離間面（第１離間面）１１３Ａ，１１３Ｂとを有している。 As shown in FIG. 4, the first groove A is formed from a bottom surface (first bottom surface) 110 and a side surface 111. The side surface 111 has a pair of narrowest surfaces (first narrowest surfaces) 112A and 112B having the narrowest width and other spaced surfaces (first spaced surfaces) 113A and 113B.
　一対の最狭面１１２Ａ，１１２Ｂは、嵌合する第２ファスナー１０２を挟むように形成された面である。一対の最狭面１１２Ａ，１１２Ｂは、それぞれ第２ファスナー１０２に当接しており、第２ファスナー１０２を挟持している。 The pair of narrowest surfaces 112A and 112B are surfaces formed so as to sandwich the second fastener 102 to be fitted. The pair of narrowest surfaces 112 </ b> A and 112 </ b> B are in contact with the second fastener 102 and sandwich the second fastener 102.
　また、一対の最狭面１１２Ａ，１１２Ｂは、第１の溝Ａのうち底面１１０と連続する側面であり、底面１１０に沿って形成されている。第１の溝Ａに嵌合する第２ファスナー１０２は、一対の最狭面１１２Ａ，１１２Ｂ及び底面１１０に当接することにより前後方向（躯体１０及びＰＣ板２０が向き合う方向）及び上方向の移動が規制されている。なお、一対の最狭面１１２Ａ，１１２Ｂと第２ファスナー１０２とは、常に当接している必要はなく、隙間が存在してもよい。 Further, the pair of narrowest surfaces 112 </ b> A and 112 </ b> B are side surfaces that are continuous with the bottom surface 110 in the first groove A, and are formed along the bottom surface 110. The second fastener 102 fitted in the first groove A moves in the front-rear direction (the direction in which the housing 10 and the PC plate 20 face each other) and the upper direction by contacting the pair of narrowest surfaces 112A and 112B and the bottom surface 110. It is regulated. The pair of narrowest surfaces 112A and 112B and the second fastener 102 do not always have to be in contact with each other, and a gap may exist.
　離間面１１３Ａ，１１３Ｂは、最狭面１１２Ａ，１１２Ｂと比べて第２ファスナー１０２から離れるように形成された面である。すなわち、ＰＣ板２０側の離間面１１３Ａは、同じ側の最狭面１１２Ａと比べて第２ファスナー１０２から離れるように形成されており、躯体１０側の離間面１１３Ｂは、同じ側の最狭面１１２Ｂと比べて第２ファスナー１０２から離れるように形成されている。 The separation surfaces 113A and 113B are surfaces formed so as to be separated from the second fastener 102 as compared with the narrowest surfaces 112A and 112B. That is, the separation surface 113A on the PC board 20 side is formed so as to be farther from the second fastener 102 than the narrowest surface 112A on the same side, and the separation surface 113B on the housing 10 side is the narrowest surface on the same side. It is formed so as to be separated from the second fastener 102 as compared with 112B.
　また、離間面１１３Ａ，１１３Ｂは、最狭面１１２Ａ，１１２Ｂから遠ざかるほど（すなわち第１の溝Ａの底面１１０から遠ざかるほど）、第２ファスナー１０２から離れるように形成されている。本実施形態では、離間面１１３Ａ，１１３Ｂは、最狭面１１２Ａ，１１２Ｂから遠ざかるほど、第２ファスナー１０２から離れる滑らかな曲面として形成されている。 Further, the separation surfaces 113A and 113B are formed so as to be separated from the second fastener 102 as the distance from the narrowest surfaces 112A and 112B increases (that is, as the distance from the bottom surface 110 of the first groove A increases). In the present embodiment, the separation surfaces 113A and 113B are formed as smooth curved surfaces that move away from the second fastener 102 as the distance from the narrowest surfaces 112A and 112B increases.
　なお、離間面１１３Ａ，１１３Ｂには、側面１１１のうち、最狭面１１２Ａ，１１２Ｂと比べて第２ファスナー１０２（すなわち面板１０７）から離れている面全てが含まれる。すなわち、側面１１１は、最狭面１１２Ａ，１１２Ｂと離間面１１３Ａ，１１３Ｂとに分けられる。 The separation surfaces 113A and 113B include all the surfaces of the side surface 111 that are separated from the second fastener 102 (that is, the face plate 107) as compared with the narrowest surfaces 112A and 112B. That is, the side surface 111 is divided into the narrowest surfaces 112A and 112B and the separation surfaces 113A and 113B.
　最狭面１１２Ａ，１１２Ｂと離間面１１３Ａ，１１３Ｂとは、形状で区別されている必要はない。例えば、側面１１１が単一の曲面であっても、嵌合する第２ファスナー１０２と接触している部分（又は第２ファスナー１０２が前後方向に移動して突き当たる部分）を最狭面１１２Ａ，１１２Ｂ、それ以外の面を離間面１１３Ａ，１１３Ｂとすることができる。また、離間面１１３Ａ，１１３Ｂは、単一の面からなる必要はなく、複数の平面や曲面等から構成されていてもよく、凹凸等を有していてもよい。 The narrowest surfaces 112A and 112B and the separating surfaces 113A and 113B do not need to be distinguished by shape. For example, even when the side surface 111 is a single curved surface, the narrowest surfaces 112A and 112B are the portions that are in contact with the second fastener 102 to be fitted (or the portion where the second fastener 102 moves and strikes the front and rear direction). The other surfaces can be the separation surfaces 113A and 113B. In addition, the separation surfaces 113A and 113B do not have to be a single surface, and may be composed of a plurality of flat surfaces, curved surfaces, or the like, and may have irregularities.
　図１～図４に示されるように、第２ファスナー１０２は、躯体１０に埋設（固定）されたチャンネル状（断面コの字状）の本体部１０６と、本体部１０６の先端に設けられた面板１０７とからなる部材である。チャンネル状の本体部１０６には、第２ファスナー１０２の引き抜き強度を高めるため、二本のカンザシ筋１０８が水平方向に貫通して配置されている。 As shown in FIGS. 1 to 4, the second fastener 102 is provided with a channel-like (cross-sectionally U-shaped) main body 106 embedded (fixed) in the housing 10, and at the tip of the main body 106. This is a member composed of the face plate 107. In the channel-shaped main body portion 106, two kanzashi muscles 108 are arranged penetrating in the horizontal direction in order to increase the pullout strength of the second fastener 102.
　面板１０７は、ＰＣ板２０に対して略平行に設けられた板状のフランジ部分である。図３（ａ）に示されるように、面板１０７には、第１ファスナー１０１が嵌合する第２の溝Ｂが形成されている。第２の溝Ｂは、面板１０７の略中央で上向きに開口する溝であり、第１ファスナー１０１の第１の溝Ａとかみ合うようにして嵌合される。面板１０７は、板状の第１ファスナー１０１に対し、上から見て十字を形成するように嵌合される（図２参照）。 The face plate 107 is a plate-like flange portion provided substantially parallel to the PC plate 20. As shown in FIG. 3A, the face plate 107 has a second groove B into which the first fastener 101 is fitted. The second groove B is a groove that opens upward at the approximate center of the face plate 107, and is fitted so as to be engaged with the first groove A of the first fastener 101. The face plate 107 is fitted to the plate-like first fastener 101 so as to form a cross when viewed from above (see FIG. 2).
　図３（ｂ）に示されるように、第２の溝Ｂは、底面（第２底面）１２０及び側面１２１から形成されている。側面１２１は、最も幅が狭い一対の最狭面（第２最狭面）１２２Ａ，１２２Ｂと、それ以外の離間面（第２離間面）１２３Ａ，１２３Ｂとを有している。 As shown in FIG. 3B, the second groove B is formed from a bottom surface (second bottom surface) 120 and a side surface 121. The side surface 121 has a pair of narrowest surfaces (second narrowest surfaces) 122A and 122B having the narrowest width and other spaced surfaces (second spaced surfaces) 123A and 123B.
　一対の最狭面１２２Ａ，１２２Ｂは、嵌合する第１ファスナー１０１を挟むように形成された面である。一対の最狭面１２２Ａ，１２２Ｂは、それぞれ第１ファスナー１０１に当接しており、第１ファスナー１０１を挟持している。 The pair of narrowest surfaces 122A and 122B are surfaces formed so as to sandwich the first fastener 101 to be fitted. The pair of narrowest surfaces 122 </ b> A and 122 </ b> B are in contact with the first fastener 101 and sandwich the first fastener 101.
　また、一対の最狭面１２２Ａ，１２２Ｂは、第２の溝Ｂのうち底面１２０と連続する側面であり、底面１２０に沿って形成されている。第２の溝Ｂに嵌合する第１ファスナー１０１は、一対の最狭面１２２Ａ，１２２Ｂ及び底面１２０に当接することにより横方向（ＰＣ板２０に平行な水平方向）及び下方向の移動が規制されている。なお、一対の最狭面１２２Ａ，１２２Ｂと第１ファスナー１０１とは、常に当接している必要はなく、隙間が存在してもよい。 Further, the pair of narrowest surfaces 122A and 122B are side surfaces that are continuous with the bottom surface 120 of the second groove B, and are formed along the bottom surface 120. The first fastener 101 fitted in the second groove B is in contact with the pair of narrowest surfaces 122A and 122B and the bottom surface 120 to restrict lateral movement (horizontal direction parallel to the PC plate 20) and downward movement. Has been. The pair of narrowest surfaces 122A and 122B and the first fastener 101 do not always have to be in contact with each other, and a gap may exist.
　離間面１２３Ａ，１２３Ｂは、一対の最狭面１２２Ａ，１２２Ｂと比べて、第１ファスナー１０１から離れるように形成されている。すなわち、ＰＣ板２０側の離間面１２３Ａは、同じ側の最狭面１２２Ａと比べて第１ファスナー１０１から離れるように形成されており、躯体１０側の離間面１２３Ｂは、同じ側の最狭面１２２Ｂと比べて第１ファスナー１０１から離れるように形成されている。 The separation surfaces 123A and 123B are formed so as to be separated from the first fastener 101 as compared with the pair of narrowest surfaces 122A and 122B. That is, the separation surface 123A on the PC board 20 side is formed so as to be separated from the first fastener 101 compared to the narrowest surface 122A on the same side, and the separation surface 123B on the housing 10 side is the narrowest surface on the same side. It is formed so as to be separated from the first fastener 101 as compared with 122B.
　また、離間面１２３Ａ，１２３Ｂは、最狭面１２２Ａ，１２２Ｂから遠ざかるほど（すなわち第２の溝Ｂの底面１２０から遠ざかるほど）、第１ファスナー１０１から離れるように形成されている。本実施形態では、離間面１２３Ａ，１２３Ｂは、最狭面１２２Ａ，１２２Ｂから遠ざかるほど、第１ファスナー１０１から離れる滑らかな曲面として形成されている。 Further, the separation surfaces 123A and 123B are formed so as to be separated from the first fastener 101 as the distance from the narrowest surfaces 122A and 122B increases (that is, as the distance from the bottom surface 120 of the second groove B increases). In the present embodiment, the separation surfaces 123A and 123B are formed as smooth curved surfaces that move away from the first fastener 101 as the distance from the narrowest surfaces 122A and 122B increases.
　なお、離間面１２３Ａ，１２３Ｂには、側面１２１のうち、最狭面１２２Ａ，１２２Ｂと比べて第１ファスナー１０１から離れている面全てが含まれる。すなわち、側面１２１は、最狭面１２２Ａ，１２２Ｂと離間面１２３Ａ，１２３Ｂとに分けられる。 The separation surfaces 123A and 123B include all of the side surfaces 121 that are separated from the first fastener 101 as compared with the narrowest surfaces 122A and 122B. That is, the side surface 121 is divided into the narrowest surfaces 122A and 122B and the separation surfaces 123A and 123B.
　最狭面１２２Ａ，１２２Ｂと離間面１２３Ａ，１２３Ｂとは、形状で区別されている必要はない。例えば、側面１２１が単一の曲面であっても、嵌合する第１ファスナー１０１と接触している部分（又は第１ファスナー１０１が横方向に移動して突き当たる部分）を最狭面１２２Ａ，１２２Ｂ、それ以外の面を離間面１２３Ａ，１２３Ｂとすることができる。離間面１２３Ａ，１２３Ｂは、単一の面からなる必要はなく、複数の平面や曲面等から構成されていてもよく、凹凸等を有していてもよい。 The narrowest surfaces 122A and 122B and the separation surfaces 123A and 123B do not need to be distinguished by shape. For example, even if the side surface 121 is a single curved surface, the narrowest surfaces 122A, 122B are the portions that are in contact with the first fastener 101 to be fitted (or the portion where the first fastener 101 moves and abuts in the lateral direction). The other surfaces can be the separation surfaces 123A and 123B. The separation surfaces 123A and 123B do not have to be a single surface, and may be composed of a plurality of flat surfaces, curved surfaces, or the like, and may have unevenness.
　以上説明した本実施形態に係る外壁構造のファスナー部材１００によれば、ＰＣ板２０に固定された第１ファスナーと躯体１０に固定された第２ファスナーとを嵌合させることで、ＰＣ板２０と躯体１０とが接続され、躯体１０に対してＰＣ板２０を支持させることができる。しかも、このファスナー部材１００では、板状の第１ファスナー１０１と第２ファスナー１０２の面板１０７とを嵌合させる構成とすることで、箱状やブロック状のファスナーを用いる場合と比べて、嵌合部分の接触面積を減らすことができ、ファスナー部材１００を通じたＰＣ板２０及び躯体１０の間の熱移動を低減できる。 According to the fastener member 100 having the outer wall structure according to the present embodiment described above, the first fastener fixed to the PC plate 20 and the second fastener fixed to the housing 10 are fitted to each other. The housing 10 is connected, and the PC board 20 can be supported with respect to the housing 10. Moreover, in the fastener member 100, the plate-like first fastener 101 and the face plate 107 of the second fastener 102 are fitted to each other, so that the fastener member 100 is fitted as compared with the case where a box-like or block-like fastener is used. The contact area of the part can be reduced, and the heat transfer between the PC board 20 and the housing 10 through the fastener member 100 can be reduced.
　更に、このファスナー部材１００では、互いにかみ合う第１の溝Ａ及び第２の溝Ｂにおいて相手側のファスナーから離間する離間面１１３Ａ，１１３Ｂ，１２３Ａ，１２３Ｂを設け、最狭面１１２Ａ，１１２Ｂ，１２２Ａ，１２２Ｂや底面１１０，１２０で相手側のファスナーの移動を規制する構成とすることで、接触面積を更に少なくすることができ、より一層の熱移動の低減が可能となる。 Further, the fastener member 100 is provided with separation surfaces 113A, 113B, 123A, and 123B that are separated from the mating fasteners in the first groove A and the second groove B that are engaged with each other, and the narrowest surfaces 112A, 112B, 122A, By adopting a configuration in which the movement of the mating fastener is restricted by 122B and the bottom surfaces 110 and 120, the contact area can be further reduced, and the heat transfer can be further reduced.
　また、このファスナー部材１００では、第１ファスナー１０１及び第２ファスナー１０２の嵌合が外れる方向（すなわち、第１ファスナー１０１が上に移動し、第２ファスナー１０２が下に移動する方向）への移動を許容すると共に、一対の最狭面１１２Ａ，１１２Ｂ，１２２Ａ，１２２Ｂを支点とした各ファスナー１０１，１０２の揺動も許容するので、地震時などには躯体１０に対するＰＣ板２０の移動（ロッキング）を許容して変位を吸収することができる。このことは、外壁構造の耐震性向上に寄与する。 Further, in the fastener member 100, the first fastener 101 and the second fastener 102 are moved in the disengagement direction (that is, the first fastener 101 moves upward and the second fastener 102 moves downward). Since the fasteners 101 and 102 are also allowed to swing around the pair of narrowest surfaces 112A, 112B, 122A, and 122B as a fulcrum, the PC plate 20 is moved (locked) with respect to the housing 10 during an earthquake. It is possible to absorb the displacement by allowing. This contributes to improving the earthquake resistance of the outer wall structure.
　更に、このファスナー部材１００によれば、第１の溝Ａ，第２の溝Ｂにおいて、最狭面１１２Ａ，１１２Ｂ，１２２Ａ，１２２Ｂから遠ざかるほど次第に離間するように離間面１１３Ａ，１１３Ｂ，１２３Ａ，１２３Ｂを形成することにより、溝Ａ，Ｂ内に大きな段差が形成されないので、地震などにおいて、ＰＣ板２０のロッキングによる移動が段差などに引っ掛かることが避けられる。このことは、ロッキングによる変位の許容をスムーズなものとするので、外壁構造の耐震性向上に有利である。 Furthermore, according to the fastener member 100, in the first groove A and the second groove B, the separation surfaces 113A, 113B, 123A, and 123B are gradually separated away from the narrowest surfaces 112A, 112B, 122A, and 122B. Since no large step is formed in the grooves A and B, the movement due to the locking of the PC plate 20 is prevented from being caught by the step or the like in an earthquake or the like. This is advantageous in improving the seismic resistance of the outer wall structure because it allows smooth displacement tolerance due to rocking.
　また、このファスナー部材１００によれば、第１の溝Ａ，第２の溝Ｂにおいて、一対の最狭面１１２Ａ，１１２Ｂ，１２２Ａ，１２２Ｂをそれぞれの底面１１０，１２０に沿って形成することにより、一対の最狭面を溝の途中に形成する場合と比べて、第１ファスナー１０１と第２ファスナー１０２の接触面積を一層少なくすることができるので、ファスナー部材を通じたＰＣ板２０及び躯体１０の間の熱移動の低減に有利である。 Further, according to the fastener member 100, in the first groove A and the second groove B, the pair of narrowest surfaces 112A, 112B, 122A, 122B are formed along the bottom surfaces 110, 120, respectively. Compared with the case where the pair of narrowest surfaces are formed in the middle of the groove, the contact area between the first fastener 101 and the second fastener 102 can be further reduced, so that the space between the PC plate 20 and the casing 10 through the fastener member can be reduced. This is advantageous for reducing heat transfer.
　次に、本実施形態に係る外壁構造の外壁施工方法について図面を参照して説明する。 Next, the outer wall construction method of the outer wall structure according to this embodiment will be described with reference to the drawings.
　本実施形態に係る外壁施工方法は、ＰＣ板２０を配置するＰＣ板配置工程（パネル体配置工程）、躯体用の配筋を行う配筋工程、第２ファスナー１０２を配置するファスナー配置工程、及び躯体用のコンクリート打設を行う打設工程を少なくとも備えている。 The outer wall construction method according to the present embodiment includes a PC board arranging step (panel body arranging step) for arranging the PC plate 20, a bar arranging step for arranging the rods, a fastener arranging step for arranging the second fastener 102, and It has at least a placing step for placing concrete for the frame.
　本実施形態に係る外壁施工方法では、先ず、ＰＣ板配置工程が行われる。図５（ａ）は、本実施形態に係る外壁施工方法のＰＣ板配置工程を説明する図である。図５（ａ）に示されるように、ＰＣ板配置工程では、下層の外壁を構成する既設のＰＣ板（既設構造体）４０に対して、新たなＰＣ板２０を配置する。なお、既設のＰＣ板４０が無い場合には、基礎などの既設構造体に対してＰＣ板２０の配置を行う。 In the outer wall construction method according to the present embodiment, first, a PC board arranging step is performed. Fig.5 (a) is a figure explaining the PC board arrangement | positioning process of the outer wall construction method which concerns on this embodiment. As shown in FIG. 5A, in the PC board arranging step, a new PC board 20 is arranged with respect to the existing PC board (existing structure) 40 constituting the lower outer wall. When there is no existing PC board 40, the PC board 20 is arranged with respect to an existing structure such as a foundation.
　ＰＣ板２０は、工場などで予め成形されたコンクリート製の板部材であり、上部には一対の第１ファスナー１０１が既に埋設されている。また、ＰＣ板２０の下部には、ＰＣ板２０の荷重を仮受けするための一対の下部荷重受けファスナー５０と、ＰＣ板２０のフレ止めを行うための一対の下部フレ止めファスナー５１が設けられている。なお、ＰＣ板２０には、窓用の開口やバルコニー用の接続突起などが予め形成されていてもよい。 The PC plate 20 is a concrete plate member molded in advance at a factory or the like, and a pair of first fasteners 101 is already embedded in the upper part. In addition, a pair of lower load receiving fasteners 50 for temporarily receiving the load of the PC plate 20 and a pair of lower anti-fretting fasteners 51 for preventing the PC plate 20 from flaking are provided at the lower part of the PC plate 20. ing. The PC board 20 may be previously formed with an opening for a window, a connection projection for a balcony, or the like.
　図５（ｂ）は、ＰＣ板配置工程でＰＣ板２０を配置した状態を示す図である。図５（ｂ）に示されるように、ＰＣ板２０は、下層のＰＣ板４０に連なるように配置される。ＰＣ板２０の下部は、ＰＣ板４０の上部に設けられた接続金具５２，５３に対して、下部荷重受けファスナー５０及び下部フレ止めファスナー５１が固定されることで支えられる。また、ＰＣ板２０の上部のフレ止めを行うため、棒状のサポート部材５４が斜めに配置される。 FIG.5 (b) is a figure which shows the state which has arrange | positioned the PC board 20 at the PC board arrangement | positioning process. As shown in FIG. 5B, the PC board 20 is arranged so as to continue to the lower PC board 40. The lower part of the PC board 20 is supported by fixing a lower load receiving fastener 50 and a lower anti-fretting fastener 51 to connection fittings 52 and 53 provided on the upper part of the PC board 40. Further, in order to prevent the upper part of the PC board 20 from fretting, a rod-like support member 54 is disposed obliquely.
　なお、ＰＣ［Precast　Concrete］柱部材などをＰＣ板２０に沿って配置する場合には、棒状のサポート部材５４に代えてＰＣ柱部材がＰＣ板２０を支える構成としてもよい。 When a PC [Precast Concrete] column member or the like is disposed along the PC plate 20, the PC column member may support the PC plate 20 instead of the rod-shaped support member 54.
　次に、配筋工程が行われる。図６（ａ）は、配筋工程を説明するための図である。図６（ａ）に示されるように、配筋工程では、ＰＣ板２０に対して躯体用の型枠６０を組むと共にユニット鉄筋１１を配置する。ユニット鉄筋１１は、工場などで鉄筋を予めユニット状に組み付けて構成したものである。ユニット鉄筋１１の採用は、現場での配筋においても有利である。 Next, the bar arrangement process is performed. Fig.6 (a) is a figure for demonstrating a bar arrangement process. As shown in FIG. 6 (a), in the reinforcing step, the frame 60 for the frame is assembled with the PC plate 20 and the unit reinforcing bars 11 are arranged. The unit reinforcing bar 11 is configured by assembling reinforcing bars in a unit shape in advance at a factory or the like. Adoption of the unit rebar 11 is also advantageous in the on-site bar arrangement.
　図６（ｂ）は、配筋工程で配筋を配置した状態を示す図である。図６（ｂ）に示されるように、ユニット鉄筋１１は、型枠６０上でＰＣ板２０の第１ファスナー１０１と同じ高さとなるように配置される。本実施形態に係る外壁施工方法によれば、ユニット鉄筋１１の配置を妨げる部材が存在しないので、例えばクレーンなどでユニット鉄筋１１を吊り上げ、所定の位置に下ろすだけで配置することができる。 FIG. 6B is a diagram illustrating a state in which the bar arrangement is arranged in the bar arrangement process. As shown in FIG. 6B, the unit reinforcing bars 11 are arranged on the mold 60 so as to be at the same height as the first fastener 101 of the PC plate 20. According to the outer wall construction method according to the present embodiment, since there is no member that hinders the arrangement of the unit reinforcing bars 11, the unit reinforcing bars 11 can be arranged simply by lifting them with a crane or the like and lowering them to a predetermined position.
　続いて、ファスナー配置工程が行われる。図７は、ファスナー配置工程を説明するための図である。図７に示されるように、ファスナー配置工程では、ＰＣ板２０に埋設された第１ファスナー１０１と嵌合するように第２ファスナー１０２を配置する。第２ファスナー１０２は、ユニット鉄筋１１内に本体部１０６の一部が入り込むように配置される。 Subsequently, a fastener placement step is performed. FIG. 7 is a view for explaining a fastener arranging step. As shown in FIG. 7, in the fastener arranging step, the second fastener 102 is arranged so as to be fitted to the first fastener 101 embedded in the PC board 20. The second fastener 102 is disposed so that a part of the main body portion 106 enters the unit rebar 11.
　また、第２ファスナー１０２は、第１ファスナー１０１と嵌合した状態で仮固定される。具体的には、第２ファスナー１０２は、第１ファスナー１０１との嵌合部分（第１の溝Ａ及び第２の溝Ｂがかみ合う部分）に仮固定バンド７０を取付けることで仮固定される。仮固定バンド７０は、例えば伸縮性を有するバンドを採用することができるが、伸縮性のないバンドを巻き付けて仮固定する態様であってもよい。 Further, the second fastener 102 is temporarily fixed in a state of being fitted to the first fastener 101. Specifically, the second fastener 102 is temporarily fixed by attaching a temporary fixing band 70 to a fitting portion (a portion where the first groove A and the second groove B are engaged) with the first fastener 101. For example, a band having elasticity can be adopted as the temporarily fixing band 70, but an aspect in which a band having no elasticity is wound and temporarily fixed may be used.
　なお、仮固定バンド７０は、施工完了後に取り外してもよく、取り外さなくてもよい。施工完了後も取り外さない場合、仮固定バンド７０による仮固定の強さは、ＰＣ板２０のロッキングの妨げとならないようにすることが好ましい。 In addition, the temporary fixing band 70 may be removed after the completion of construction, or may not be removed. In the case where it is not removed even after the completion of construction, it is preferable that the strength of temporary fixing by the temporary fixing band 70 does not hinder the locking of the PC board 20.
　また、本実施形態では、仮固定バンド７０を用いて仮固定を行ったが、仮固定の方法は仮固定バンド７０を用いるものに限られない。例えば、第１ファスナー１０１及び第２ファスナー１０２の嵌合部分を貫通する仮固定ピンを配置することで仮固定を行ってもよい。この場合にも、仮固定ピンは、ＰＣ板２０のロッキングの妨げとならない強度（すなわちロッキングが必要な場合には仮固定ピンが変形又は折れる強度）であることが好ましい。 In the present embodiment, temporary fixing is performed using the temporary fixing band 70, but the temporary fixing method is not limited to that using the temporary fixing band 70. For example, temporary fixing may be performed by arranging a temporary fixing pin that penetrates the fitting portion of the first fastener 101 and the second fastener 102. Also in this case, it is preferable that the temporarily fixing pin has a strength that does not hinder the locking of the PC board 20 (that is, a strength at which the temporarily fixing pin is deformed or broken when locking is necessary).
　その後、打設工程が行われる。図８は、打設工程を説明するための図である。図８に示されるように、打設工程では、第２ファスナー１０２の本体部１０６の一部及びユニット鉄筋１１を埋め込むようにコンクリートの打設を行う。なお、打設工程では、コンクリートの打設前に、ＰＣ板２０の第１ファスナー１０１側に断熱材１４を装着する。また、断熱材１４は、工場にて大部分がＰＣ板２０に取り付けられ、第１ファスナー１０１に対応する部分だけ現場で装着する場合もある。 After that, the placing process is performed. FIG. 8 is a diagram for explaining the placing process. As shown in FIG. 8, in the placing step, concrete is placed so as to embed a part of the main body portion 106 of the second fastener 102 and the unit rebar 11. In the placing process, the heat insulating material 14 is attached to the first fastener 101 side of the PC board 20 before placing concrete. In addition, most of the heat insulating material 14 is attached to the PC board 20 at a factory, and only a portion corresponding to the first fastener 101 may be attached on site.
　続いて、型枠６０内に打設されたコンクリートの締固め及び仕上げを行い、養生を経てコンクリートが固まり、強度を発揮することで躯体１０が構成される。その結果、第２ファスナー１０２は、本体部１０６の一部が躯体１０に埋設された状態となる。これにより、ＰＣ板２０は、嵌合する第２ファスナー１０２及び第１ファスナー１０１を介して躯体１０による支持が可能となる。その後、仮設の下部荷重受けファスナー５０やサポート部材５４を外すことでＰＣ板２０を躯体１０に支持させ、外壁の構築を行う。 Subsequently, the concrete placed in the mold 60 is compacted and finished, and after curing, the concrete hardens and exhibits strength, thereby forming the frame 10. As a result, the second fastener 102 is in a state in which a part of the main body portion 106 is embedded in the housing 10. Thereby, the PC board 20 can be supported by the housing 10 via the second fastener 102 and the first fastener 101 to be fitted. Thereafter, the temporary lower load receiving fastener 50 and the support member 54 are removed so that the PC board 20 is supported by the housing 10 and the outer wall is constructed.
　以上説明した本実施形態に係る外壁施工方法によれば、先にＰＣ板２０を配置し、ＰＣ板２０の第１ファスナー１０１に嵌合するように第２ファスナー１０２を配置した後、第２ファスナー１０２の本体部１０６の一部を埋め込むようにコンクリートを打設することで、躯体１０の構成とＰＣ板２０及び躯体１０の接続とを一度に行うことができ、現場の作業効率が向上する。 According to the outer wall construction method according to the present embodiment described above, the PC plate 20 is disposed first, the second fastener 102 is disposed so as to be fitted to the first fastener 101 of the PC plate 20, and then the second fastener. By placing concrete so as to embed a part of the main body 106 of 102, the structure of the housing 10 and the connection of the PC board 20 and the housing 10 can be performed at a time, and the work efficiency at the site is improved.
　また、この外壁施工方法によれば、第１ファスナー１０１に嵌合した状態で第２ファスナー１０２の本体部１０６を躯体１０内に埋め込むので、躯体１０側に固定された第２ファスナー１０２と第１ファスナー１０１との位置合わせが不要となり、作業が簡素化する。しかも、この外壁施工方法によれば、配筋工程の後に第２ファスナー１０２を配置するので、第２ファスナー１０２が配筋の妨げとなることがなく、配筋作業を効率良く進めることができる。特にユニット鉄筋を採用した場合、ユニット鉄筋を吊り上げて配置するだけで配筋できるので、外壁構築にかかる施工期間を大幅に短縮することができる。 Moreover, according to this outer wall construction method, since the main body portion 106 of the second fastener 102 is embedded in the housing 10 while being fitted to the first fastener 101, the second fastener 102 fixed to the housing 10 side and the first fastener Positioning with the fastener 101 becomes unnecessary, and the work is simplified. Moreover, according to this outer wall construction method, since the second fastener 102 is disposed after the bar arrangement process, the second fastener 102 does not interfere with the bar arrangement, and the bar arrangement work can be efficiently performed. In particular, when a unit reinforcing bar is employed, it can be arranged simply by lifting and arranging the unit reinforcing bar, so that the construction period for constructing the outer wall can be greatly shortened.
　更に、この外壁施工方法によれば、ファスナー配置工程において、第１ファスナー１０１及び第２ファスナー１０２の嵌合部分を仮固定するので、第２ファスナー１０２を配筋などに仮固定する場合と比べて、仮固定の作業が容易となる。しかも、第１ファスナー１０１及び第２ファスナー１０２の嵌合部分を仮固定するので、コンクリート打設などの影響で第２ファスナー１０２が移動したとしても、第１ファスナー１０１との嵌合にズレが生じることが避けられるので、ＰＣ板２０及び躯体１０を適切に接続させることができる。 Furthermore, according to this outer wall construction method, the fitting portion of the first fastener 101 and the second fastener 102 is temporarily fixed in the fastener arranging step, so that the second fastener 102 is temporarily fixed to the reinforcing bar. The temporary fixing work becomes easy. In addition, since the fitting portion of the first fastener 101 and the second fastener 102 is temporarily fixed, even if the second fastener 102 moves due to the influence of concrete placement or the like, the fitting with the first fastener 101 is displaced. Therefore, the PC board 20 and the housing 10 can be appropriately connected.
　また、この外壁施工方法によれば、上述した構成のファスナー部材１００を採用することで、ファスナー部材１００を通じたＰＣ板２０及び躯体１０の間の熱移動を低減することができる。 Moreover, according to this outer wall construction method, the heat transfer between the PC board 20 and the housing 10 through the fastener member 100 can be reduced by employing the fastener member 100 having the above-described configuration.
　本発明は、上述した実施形態に限定されるものではない。以下、本発明の変形例について図面を参照して説明する。各図において、上記実施形態と同一又は相当する構成部分には同一符号を付し、重複する説明を省略する。 The present invention is not limited to the embodiment described above. Hereinafter, modifications of the present invention will be described with reference to the drawings. In each figure, the same reference numerals are given to the same or corresponding components as those in the above-described embodiment, and a duplicate description will be omitted.
　図９（ａ）は、ファスナー部材の第１の変形例を示す断面図である。図９（ａ）に示すファスナー部材２００は、図４に示すファスナー部材１００と比べて、第１の溝Ａ１の形状のみが異なっている。 FIG. 9A is a cross-sectional view showing a first modification of the fastener member. The fastener member 200 shown in FIG. 9A differs from the fastener member 100 shown in FIG. 4 only in the shape of the first groove A1.
　具体的には、第１の溝Ａ１は、図４に示す第１の溝Ａと比べて、側面２１１のうち、第１ファスナー２０１の本体部２０３側が一つの平面からなる点が異なっている。すなわち、本体部２０３側の側面２１１には離間面が形成されていない。当該平面は全体が最狭面２１２Ａに相当し、反対側の最狭面２１２Ｂと対になって第２ファスナー１０２を挟んでいる。 More specifically, the first groove A1 is different from the first groove A shown in FIG. 4 in that the main body 203 side of the first fastener 201 of the side surface 211 is a single plane. That is, no separation surface is formed on the side surface 211 on the main body 203 side. The plane as a whole corresponds to the narrowest surface 212A, and sandwiches the second fastener 102 in a pair with the opposite narrowest surface 212B.
　なお、図９（ａ）に示すファスナー部材２００の構成の他、側面２１１の左右を入れ替えた構成、すなわち側面２１１のうち第１ファスナー２０１の本体部２０３側の面と頭部２０４側の面とを入れ替えた構成も本発明に含まれる。 In addition to the configuration of the fastener member 200 shown in FIG. 9A, the configuration in which the left and right sides 211 are switched, that is, the surface on the main body 203 side of the first fastener 201 and the surface on the head 204 side of the side surface 211. A configuration in which is replaced is also included in the present invention.
　図９（ｂ）は、ファスナー部材の第２の変形例を示す断面図である。図９（ｂ）に示すファスナー部材３００は、図４に示すファスナー部材１００と比べて、第１の溝Ａ２の形状のみが異なっている。具体的には、ファスナー部材３００の第１の溝Ａ２は、図４に示す第１の溝Ａと比べて、側面３１１を構成する一対の最狭面３１２Ａ，３１２Ｂ及び離間面３１３Ａ，３１３Ｂが平面からなる点のみが異なっている。すなわち、側面３１１が曲面を有さず、複数の平面から構成される場合も本発明に含まれる。 FIG. 9B is a cross-sectional view showing a second modification of the fastener member. The fastener member 300 shown in FIG. 9B is different from the fastener member 100 shown in FIG. 4 only in the shape of the first groove A2. Specifically, the first groove A2 of the fastener member 300 has a pair of narrowest surfaces 312A and 312B and separation surfaces 313A and 313B that form the side surface 311 as compared with the first groove A shown in FIG. The only difference is that That is, the present invention includes a case where the side surface 311 does not have a curved surface and is constituted by a plurality of planes.
　図９（ｃ）は、ファスナー部材の第３の変形例を示す断面図である。図９（ｃ）に示すファスナー部材４００は、図４に示すファスナー部材１００と比べて、第１の溝Ａ３の形状及び第２ファスナー４０２の面板４０７の断面形状のみが異なっている。 FIG. 9C is a cross-sectional view showing a third modification of the fastener member. The fastener member 400 shown in FIG. 9C is different from the fastener member 100 shown in FIG. 4 only in the shape of the first groove A3 and the cross-sectional shape of the face plate 407 of the second fastener 402.
　具体的には、第１の溝Ａ３は、図４に示す第１の溝Ａと比べて、一対の最狭面４１２Ａ，４１２Ｂが第１の溝Ａ３の途中に形成されている点が異なっている。すなわち、一対の最狭面４１２Ａ，４１２Ｂは、第１の溝Ａ３の底面４１０に沿って形成されていない。また、第１の溝Ａ３は、図４に示す第１の溝Ａと比べて、側面４１１を構成する一対の最狭面４１２Ａ，４１２Ｂ、底側の離間面４１３Ａ，４１３Ｂ、及び開口側の離間面４１４Ａ，４１４Ｂがそれぞれ平面から構成されている点も異なっている。このような図９（ｃ）に示す構成も本発明に含まれる。 Specifically, the first groove A3 is different from the first groove A shown in FIG. 4 in that a pair of narrowest surfaces 412A and 412B are formed in the middle of the first groove A3. Yes. That is, the pair of narrowest surfaces 412A and 412B are not formed along the bottom surface 410 of the first groove A3. Further, the first groove A3 has a pair of narrowest surfaces 412A and 412B constituting the side surface 411, bottom side separation surfaces 413A and 413B, and opening side separation compared to the first groove A shown in FIG. Another difference is that the surfaces 414A and 414B are each composed of a plane. Such a configuration shown in FIG. 9C is also included in the present invention.
　また、図９（ｃ）に示されるように、一対の最狭面４１２Ａ，４１２Ｂが第１の溝Ａ３の途中に形成されている場合には、第１の溝Ａ３の底面４１０へ近づくほど先細りとなるように面板４０７の嵌合部分（中央上端部）を断面台形状に形成することで、第１の溝Ａ３の底面４１０へ当接する面（すなわち第２の溝の底面）を狭めて接触面積を少なくすることができ、熱移動を一層低減することができる。なお、このように面板４０７を形成することは必須ではない。 Further, as shown in FIG. 9C, when the pair of narrowest surfaces 412A and 412B are formed in the middle of the first groove A3, the taper becomes closer to the bottom surface 410 of the first groove A3. By forming the fitting portion (the center upper end portion) of the face plate 407 into a trapezoidal cross section so that the surface is in contact with the bottom surface 410 of the first groove A3 (that is, the bottom surface of the second groove) is narrowed. The area can be reduced and the heat transfer can be further reduced. It is not essential to form the face plate 407 in this way.
　図９（ｄ）は、ファスナー部材の第４の変形例を示す断面図である。図９（ｄ）に示すファスナー部材５００は、前述した図９（ｃ）に示すファスナー部材４００の第１の溝Ａ３の側面４１１を曲面から構成したものである。このように、第１の溝Ａ４の側面５１１を構成する一対の最狭面５１２Ａ，５１２Ｂ、底側の離間面５１３Ａ，５１３Ｂ、及び開口側の離間面５１４Ａ，５１４Ｂが曲面から形成されている場合も本発明に含まれる。 FIG. 9D is a cross-sectional view showing a fourth modification of the fastener member. The fastener member 500 shown in FIG. 9D is configured by forming the side surface 411 of the first groove A3 of the fastener member 400 shown in FIG. 9C described above from a curved surface. As described above, when the pair of narrowest surfaces 512A and 512B constituting the side surface 511 of the first groove A4, the separation surfaces 513A and 513B on the bottom side, and the separation surfaces 514A and 514B on the opening side are formed from curved surfaces. Are also included in the present invention.
　また、図９（ｄ）に示されるように、一対の最狭面５１２Ａ，５１２Ｂが第１の溝Ａ４の途中に形成されている場合には、第１の溝Ａ４の底面５１０に接する面板５０７の嵌合部分が丸みを持つように形成することで、第１の溝Ａ４の底面５１０へ当接する面（すなわち第２の溝の底面）を狭めて接触面積を少なくすることができ、熱移動を一層低減することができる。なお、このように面板５０７を形成することは必須ではない。また、図９（ｄ）に示す面板５０７と図９（ｃ）に示す面板４０７とは、入れ替えて採用することが可能である。 As shown in FIG. 9D, when the pair of narrowest surfaces 512A and 512B are formed in the middle of the first groove A4, the face plate 507 in contact with the bottom surface 510 of the first groove A4. By forming the fitting portion to be rounded, the contact surface with the bottom surface 510 of the first groove A4 (that is, the bottom surface of the second groove) can be narrowed to reduce the contact area, and heat transfer Can be further reduced. It is not essential to form the face plate 507 in this way. Further, the face plate 507 shown in FIG. 9D and the face plate 407 shown in FIG. 9C can be used interchangeably.
　なお、図９（ｂ）～図９（ｄ）に示す第１の溝Ａ２～Ａ４において、図９（ａ）に示すように一方の側面が一つの平面から形成され、当該側面が離間面を有さない場合も本発明に含まれる。 Incidentally, in the first grooves A2 to A4 shown in FIGS. 9B to 9D, one side surface is formed from one plane as shown in FIG. 9A, and the side surface forms a separation surface. The case where it does not exist is also included in the present invention.
　図１０（ａ）は、ファスナー部材の第５の変形例を示す断面図である。図１０（ａ）に示すファスナー部材６００は、図３（ｂ）に示すファスナー部材１００と比べて、第２の溝Ｂ１の形状及び第２ファスナー６０２の本体部６０６の形状のみが異なっている。 FIG. 10A is a cross-sectional view showing a fifth modification of the fastener member. The fastener member 600 shown in FIG. 10A differs from the fastener member 100 shown in FIG. 3B only in the shape of the second groove B1 and the shape of the main body portion 606 of the second fastener 602.
　具体的には、ファスナー部材６００の第２の溝Ｂ１は、図３（ｂ）に示す第２の溝Ｂと比べて、側面６２１を構成する一対の最狭面６２２Ａ，６２２Ｂ及び離間面６２３Ａ，６２３Ｂが平面からなる点のみが異なっている。すなわち、側面６２１が曲面を有さず、複数の平面から構成される場合も本発明に含まれる。 Specifically, the second groove B1 of the fastener member 600 has a pair of narrowest surfaces 622A, 622B and a separation surface 623A, which constitute the side surface 621, as compared with the second groove B shown in FIG. Only the point that 623B is a plane is different. That is, the case where the side surface 621 does not have a curved surface and is configured by a plurality of planes is included in the present invention.
　また、図１０（ａ）に示されるように、第２ファスナー６０２の本体部６０６の形状は必ずしもチャンネル形状である必要はなく、板状のものも採用可能である。この場合、垂直方向に貫通するカンザシ筋などを配置してもよい。 Further, as shown in FIG. 10A, the shape of the main body 606 of the second fastener 602 is not necessarily a channel shape, and a plate-like shape can also be adopted. In this case, a kansai streak that penetrates in the vertical direction may be arranged.
　図１０（ｂ）は、ファスナー部材の第６の変形例を示す断面図である。図１０（ｂ）に示すファスナー部材７００は、図３（ｂ）に示すファスナー部材１００と比べて、第２の溝Ｂ２の形状、第２ファスナー６０２の本体部６０６の形状、及び第１ファスナー７０１の嵌合部分の形状のみが異なっている。 FIG. 10B is a cross-sectional view showing a sixth modification of the fastener member. Compared with the fastener member 100 shown in FIG. 3 (b), the fastener member 700 shown in FIG. 10 (b) has the shape of the second groove B2, the shape of the main body 606 of the second fastener 602, and the first fastener 701. Only the shape of the fitting part is different.
　具体的には、ファスナー部材７００の第２の溝Ｂ２は、図３（ｂ）に示す第２の溝Ｂと比べて、一対の最狭面７２２Ａ，７２２Ｂが第２の溝Ｂ２の途中に形成されている点、及び側面７２１が複数の平面から構成されている点が異なっている。すなわち、一対の最狭面７２２Ａ，７２２Ｂが第２の溝Ｂ２の底面７２０に沿って形成されておらず、一対の最狭面７２２Ａ，７２２Ｂ、底側の離間面７２３Ａ，７２３Ｂ、及び開口側の離間面７２４Ａ，７２４Ｂがそれぞれ平面から構成されている場合も本発明に含まれる。 Specifically, the second groove B2 of the fastener member 700 has a pair of narrowest surfaces 722A and 722B formed in the middle of the second groove B2 as compared to the second groove B shown in FIG. And the point that the side surface 721 is composed of a plurality of planes is different. That is, the pair of narrowest surfaces 722A and 722B is not formed along the bottom surface 720 of the second groove B2, but the pair of narrowest surfaces 722A and 722B, the bottom side separation surfaces 723A and 723B, and the opening side The present invention also includes a case in which the separation surfaces 724A and 724B are each composed of a flat surface.
　また、図１０（ｂ）に示されるように、一対の最狭面７２２Ａ，７２２Ｂが第２の溝Ｂ２の途中に形成されている場合には、第２の溝Ｂ２の底面７２０へ近づくほど先細りとなるように第１ファスナー７０１の嵌合部分を断面台形状に形成することで、第２の溝Ｂ２の底面７２０へ当接する面（すなわち第１の溝の底面）を狭めて接触面積を少なくすることができ、熱移動を一層低減することができる。なお、このように第１ファスナー７０１を形成することは必須ではない。 Further, as shown in FIG. 10B, when the pair of narrowest surfaces 722A and 722B are formed in the middle of the second groove B2, the taper becomes closer to the bottom surface 720 of the second groove B2. By forming the fitting portion of the first fastener 701 into a trapezoidal cross section so as to become, the surface that contacts the bottom surface 720 of the second groove B2 (that is, the bottom surface of the first groove) is narrowed to reduce the contact area Heat transfer can be further reduced. Note that it is not essential to form the first fastener 701 in this way.
　また、図１０（ｂ）に示されるように、第２ファスナー７０２の本体部７０６の形状は、断面Ｈ形状のものも採用可能である。 Further, as shown in FIG. 10B, the main body 706 of the second fastener 702 may have an H-shaped cross section.
　図１０（ｃ）は、ファスナー部材の第７の変形例を示す断面図である。図１０（ｃ）に示すファスナー部材８００は、前述した図１０（ｂ）に示すファスナー部材７００の第２の溝Ｂ２の側面７２１を曲面から構成したものである。このように、第２の溝Ｂ３の側面８２１を構成する一対の最狭面８２２Ａ，８２２Ｂ、底側の離間面８２３Ａ，８２３Ｂ、及び開口側の離間面８２４Ａ，８２４Ｂが曲面からなる場合も本発明に含まれる。 FIG. 10C is a cross-sectional view showing a seventh modification of the fastener member. A fastener member 800 shown in FIG. 10 (c) is configured by forming the side surface 721 of the second groove B2 of the fastener member 700 shown in FIG. 10 (b) described above from a curved surface. As described above, the present invention includes the case where the pair of narrowest surfaces 822A and 822B, the bottom- side separation surfaces 823A and 823B, and the opening- side separation surfaces 824A and 824B that form the side surface 821 of the second groove B3 are curved surfaces. include.
　また、図１０（ｃ）に示されるように、一対の最狭面８２２Ａ，８２２Ｂが第２の溝Ｂ３の途中に形成されている場合には、第２の溝Ｂ３の底面８２０に接する第１ファスナー８０１の嵌合部分が丸みを持つように形成することで、第２の溝Ｂ３の底面８２０へ当接する面（すなわち第１の溝の底面）を狭めて接触面積を少なくすることができ、熱移動を一層低減することができる。なお、このように第１ファスナー８０１を形成することは必須ではない。また、図１０（ｃ）に示す第１ファスナー８０１と図１０（ｂ）に示す第１ファスナー７０１とは入れ替えて採用することが可能である。 In addition, as shown in FIG. 10C, when the pair of narrowest surfaces 822A and 822B is formed in the middle of the second groove B3, the first contact with the bottom surface 820 of the second groove B3. By forming the fitting portion of the fastener 801 so as to have a roundness, the surface that contacts the bottom surface 820 of the second groove B3 (that is, the bottom surface of the first groove) can be narrowed to reduce the contact area. Heat transfer can be further reduced. Note that it is not essential to form the first fastener 801 in this way. In addition, the first fastener 801 shown in FIG. 10C and the first fastener 701 shown in FIG.
　また、図１０（ｃ）に示されるように、第２ファスナー８０２の本体部８０６の形状は、断面略Ｖ字状のものも採用可能である。 Further, as shown in FIG. 10C, the main body 806 of the second fastener 802 may have a substantially V-shaped cross section.
　図１１（ａ）は、ファスナー部材の第８の変形例を示す断面図である。図１１（ａ）に示すファスナー部材９００は、図２に示すファスナー部材１００と比べて、第２の溝Ｂ４の形状のみが異なっている。 FIG. 11A is a cross-sectional view showing an eighth modification of the fastener member. The fastener member 900 shown in FIG. 11A differs from the fastener member 100 shown in FIG. 2 only in the shape of the second groove B4.
　具体的には、第２の溝Ｂ４の側面９２２が、上から見て台形状となるように形成されており、台形の先端部分のみが第１ファスナー１０１に接触している。すなわち、側面９２２のうち、上から見た台形の先端部分が最狭面９２２Ａ,９２２Ｂに相当する。先端部分以外は、第１ファスナー１０１から離間する離間面９２３Ａ,９２３Ｂに相当する。このような構成によれば、第１ファスナー１０１と第２ファスナー９０２との接触面積を更に少なくすることができるので、熱移動をより一層低減することができる。 Specifically, the side surface 922 of the second groove B4 is formed in a trapezoidal shape when viewed from above, and only the tip of the trapezoid is in contact with the first fastener 101. That is, the trapezoidal tip portion of the side surface 922 viewed from above corresponds to the narrowest surfaces 922A and 922B. The portions other than the tip portion correspond to the separation surfaces 923A and 923B that are separated from the first fastener 101. According to such a configuration, since the contact area between the first fastener 101 and the second fastener 902 can be further reduced, heat transfer can be further reduced.
　図１１（ｂ）は、ファスナー部材の第９の変形例を示す断面図である。図１１（ｂ）に示すファスナー部材１０００は、図２に示すファスナー部材１００と比べて、第２の溝Ｂ５の形状のみが異なっている。 FIG. 11B is a cross-sectional view showing a ninth modification of the fastener member. The fastener member 1000 shown in FIG. 11B is different from the fastener member 100 shown in FIG. 2 only in the shape of the second groove B5.
　具体的には、第２の溝Ｂ５の側面１０２２が、上から見て半円形状となるように形成されており、半円形状の先端のみが第１ファスナー１０１に接触している。すなわち、側面１０２２のうち、上から見た半円形状の先端が最狭面１０２２Ａ,１０２２Ｂに相当する。先端以外は、第１ファスナー１０１から離間する離間面１０２３Ａ,１０２３Ｂに相当する。このような構成によれば、第１ファスナー１０１と第２ファスナー１００２との接触面積を更に少なくすることができるので、熱移動をより一層低減することができる。 Specifically, the side surface 1022 of the second groove B5 is formed to be semicircular when viewed from above, and only the semicircular tip is in contact with the first fastener 101. That is, of the side surface 1022, the semicircular tip viewed from above corresponds to the narrowest surfaces 1022A and 1022B. The portions other than the tip correspond to the separation surfaces 1023A and 1023B which are separated from the first fastener 101. According to such a configuration, since the contact area between the first fastener 101 and the second fastener 1002 can be further reduced, heat transfer can be further reduced.
　なお、上述した第２の溝Ｂ４，Ｂ５と同様に、第１ファスナー１０１の第１の溝Ａの側面１１１についても、下からみて台形状や半円形状となるように形成してもよい。これにより、更なる熱移動の低減が可能となる。 Note that, similarly to the second grooves B4 and B5 described above, the side surface 111 of the first groove A of the first fastener 101 may be formed in a trapezoidal shape or a semicircular shape when viewed from below. Thereby, reduction of the further heat transfer is attained.
　以上説明した図９～図１１に示す変形例は、互いに組み合わせることが可能である。すなわち、図９（ａ）の変形例に対して、図１０（ａ）～図１０（ｃ）のいずれの変形例を組み合わせて採用してもよく、更に図１１（ａ）又は図１１（ｂ）の変形例を組み合わせて採用してもよい。このことは、図９（ｂ）～図９（ｄ）においても同様である。 9 to 11 described above can be combined with each other. That is, any of the modifications shown in FIGS. 10 (a) to 10 (c) may be combined with the modification shown in FIG. 9 (a), and further, FIG. 11 (a) or FIG. ) May be used in combination. The same applies to FIGS. 9B to 9D.
　なお、ファスナーの接触部分の形状は、当該部分に加わる荷重に応じて適切なものが選択される。すなわち、荷重が大きい部分は面接触（例えば平面による接触）として耐久性を確保し、荷重が小さい部分は点接触（例えば曲面による接触）として接触面積を低減することができる。 Note that the shape of the contact portion of the fastener is appropriately selected according to the load applied to the portion. That is, durability can be secured as a surface contact (for example, contact by a flat surface) in a portion with a large load, and a contact area can be reduced as a point contact (for example, contact by a curved surface).
　また、本発明は、上述した変形例に限定されるものではない。例えば、第１ファスナーと第２ファスナーとを入れ替えて用いてもよい。すなわち、躯体に対して第１ファスナーを固定し、ＰＣ板に対して第２ファスナーを固定する態様であってもよい。この場合、第１ファスナーの第１の溝が上向きに開口し、第２ファスナーの第２の溝が下向きに開口するように配置される。その他、第１ファスナー及び第２ファスナーの形状には、様々なものを採用することができる。 Further, the present invention is not limited to the above-described modification. For example, the first fastener and the second fastener may be used interchangeably. That is, the aspect which fixes a 1st fastener with respect to a housing and fixes a 2nd fastener with respect to a PC board may be sufficient. In this case, it arrange | positions so that the 1st groove | channel of a 1st fastener may open upward and the 2nd groove | channel of a 2nd fastener may open downward. In addition, various shapes can be employed for the first fastener and the second fastener.
　また、ＰＣ板の上部に二つ以上のファスナー部材を設ける場合には、少なくとも一つのファスナー部材が、上述した嵌合構造（上述した第１ファスナー及び第２ファスナーを有し、第１の溝及び第２の溝が互いに嵌合する構造）を有すればよい。残りのファスナー部材は、上述した嵌合構造に限定されず、例えば、躯体側の第２ファスナーの面板が溝を有さない長方形板であり、この長方形板が第１ファスナーの第１の溝に嵌合する構成であってもよい。この場合、第１ファスナーの水平方向の移動は規制されずに面板上をスライド可能であり、ロッキングによるＰＣ板の水平変位を部分的に許容することができる。 When two or more fastener members are provided on the upper part of the PC board, at least one fastener member has the above-described fitting structure (the first fastener and the second fastener described above, the first groove and It is only necessary to have a structure in which the second grooves are fitted to each other. The remaining fastener members are not limited to the above-described fitting structure. For example, the face plate of the second fastener on the housing side is a rectangular plate that does not have a groove, and this rectangular plate serves as the first groove of the first fastener. The structure which fits may be sufficient. In this case, the horizontal movement of the first fastener can be slid on the face plate without being restricted, and the horizontal displacement of the PC plate due to locking can be partially allowed.
　本発明は、パネル体と躯体との間の熱移動を低減することができるファスナー部材、ファスナー部材を備えた外壁構造、及び外壁施工方法に利用可能である。 The present invention can be used for a fastener member that can reduce heat transfer between the panel body and the casing, an outer wall structure including the fastener member, and an outer wall construction method.
　１０…躯体　１１…ユニット鉄筋　１４…断熱材　２０、２１…ＰＣ板（パネル体）　５０…下部荷重受けファスナー
　５１…下部フレ止めファスナー　５２，５３…接続金具　５４…サポート部材　６０…型枠　７０…仮固定バンド　１００，２００，３００，４００，５００，６００，７００，８００…ファスナー部材　１０１，２０１，３０１，４０１，５０１，７０１，８０１…第１ファスナー　１０２，４０２，５０２，６０２，７０２，８０２,９０２,１００２…第２ファスナー　１０３，２０３，３０３，４０３，５０３，７０３，８０３…本体部　１０４，２０４，３０４，４０４，５０４…頭部　１０５，１０８…カンザシ筋　１０６，４０６，５０６，６０６，７０６，８０６…本体部　１０７，４０７，５０７，６０７，７０７，８０７…面板　１１０，２１０，３１０，４１０，５１０…底面（第１底面）　１２０，６２０，７２０，８２０…底面（第２底面）　１１１，２１１，３１１，４１１，５１１…側面　１２１，６２１，７２１，８２１，９２１，１０２１…側面　１１２Ａ，１１２Ｂ，２１２Ａ，２１２Ｂ，３１２Ａ，３１２Ｂ，４１２Ａ，４１２Ｂ，５１２Ａ，５１２Ｂ…最狭面（第１最狭面）　１２２Ａ，１２２Ｂ，６２２Ａ，６２２Ｂ，７２２Ａ，７２２Ｂ，８２２Ａ，８２２Ｂ，９２２Ａ，９２２Ｂ，１０２２Ａ，１０２２Ｂ…最狭面（第２最狭面）　１１３Ａ，１１３Ｂ，２１３，３１３Ａ，３１３Ｂ，４１３Ａ，４１３Ｂ，４１４Ａ，４１４Ｂ，５１３Ａ，５１３Ｂ，５１４Ａ，５１４Ｂ…離間面（第１離間面）　１２３Ａ，１２３Ｂ，６２３Ａ，６２３Ｂ，７２３Ａ，７２３Ｂ，７２４Ａ，７２４Ｂ，８２３Ａ　８２３Ｂ，８２４Ａ，８２４Ｂ，９２３Ａ，９２３Ｂ，１０２３Ａ，１０２３Ｂ…離間面（第２離間面）　Ａ，Ａ１-Ａ４…第１の溝　Ｂ，Ｂ１-Ｂ５…第２の溝 DESCRIPTION OF SYMBOLS 10 ... Housing 11 ... Unit reinforcement 14 ... Heat insulating material 20, 21 ... PC board (panel body) 50 ... Lower load receiving fastener 51 ... Lower anti-flare fastener 52, 53 ... Connection metal fitting 54 ... Support member 60 ... Formwork 70 ... Temporary Fixing band 100, 200, 300, 400, 500, 600, 700, 800 ... Fastener member 101, 201, 301, 401, 501, 701, 801 ... First fastener 102, 402, 502, 602, 702, 802, 902 , 1002 ... second fastener 103, 203, 303, 403, 503, 703, 803 ... main body 104, 204, 304, 404, 504 ... head 105, 108 ... kansai muscle 106, 406, 506, 606, 706 806 ... Main body 107, 407, 507, 607, 707, 807 ... Face plate 110, 210, 310, 410, 510 ... bottom surface (first bottom surface) 120, 620, 720, 820 ... bottom surface (second bottom surface) 111, 211, 311, 411, 511 ... side surfaces 121, 621, 721, 821, 921 , 1021... Side surfaces 112A, 112B, 212A, 212B, 312A, 312B, 412A, 412B, 512A, 512B ... The narrowest surface (first narrowest surface) 122A, 122B, 622A, 622B, 722A, 722B, 822A, 822B, 922A, 922B, 1022A, 1022B ... narrowest surface (second narrowest surface) 113A, 113B, 213, 313A, 313B, 413A, 413B, 414A, 414B, 513A, 513B, 514A, 514B ... separation surface (first separation) Surface) 123A, 123B, 623A, 623B, 723 , 723B, 724A, 724B, 823A 823B, 824A, 824B, 923A, 923B, 1023A, 1023B ... spaced surface (second separating surface) A, A1-A4 ... first groove B, B1-B5 ... second groove

Claims (6)

  1. 　パネル体と躯体とを接続するためのファスナー部材であって、
    　前記パネル体及び前記躯体のうち一方に固定され、嵌合用の第１の溝が形成された板状の第１ファスナーと、
    　前記パネル体及び前記躯体のうち他方に固定された本体部と、前記第１の溝に嵌合する第２の溝が形成された面板と、を有する第２ファスナーと、を備え、
    　前記第１の溝は、前記第２ファスナーの前記面板を挟むように形成された一対の第１最狭面と、前記第１最狭面と比べて前記面板から離れるように形成された第１離間面と、前記面板に当接する第１底面と、を有し、
    　前記第２の溝は、前記第１ファスナーを挟むように形成された一対の第２最狭面と、前記第２最狭面と比べて前記第１ファスナーから離れるように形成された第２離間面と、前記第１ファスナーの前記第１底面に当接する第２底面と、を有することを特徴とするファスナー部材。     A fastener member for connecting the panel body and the housing,
    A plate-like first fastener fixed to one of the panel body and the housing and having a first groove for fitting;
    A second fastener having a main body fixed to the other of the panel body and the housing, and a face plate formed with a second groove that fits into the first groove;
    The first groove is a pair of first narrowest surfaces formed so as to sandwich the face plate of the second fastener, and a first groove formed so as to be separated from the face plate compared to the first narrowest surface. A spacing surface and a first bottom surface that contacts the face plate;
    The second groove has a pair of second narrowest surfaces formed so as to sandwich the first fastener, and a second separation formed so as to be separated from the first fastener compared to the second narrowest surface. A fastener member comprising: a surface; and a second bottom surface that contacts the first bottom surface of the first fastener.
  2. 　前記第１離間面は、前記一対の第１最狭面から遠ざかるほど前記面板から離れるように形成されており、
    　前記第２離間面は、前記一対の第２最狭面から遠ざかるほど前記第１ファスナーから離れるように形成されていることを特徴とする請求項１に記載のファスナー部材。     The first separation surface is formed so as to separate from the face plate as the distance from the pair of first narrowest surfaces increases.
    2. The fastener member according to claim 1, wherein the second separation surface is formed so as to be separated from the first fastener as the distance from the pair of second narrowest surfaces increases.
  3. 　前記一対の第１最狭面は、前記第１底面に沿って形成されており、
    　前記一対の第２最狭面は、前記第２底面に沿って形成されていることを特徴とする請求項１又は２に記載のファスナー部材。     The pair of first narrowest surfaces are formed along the first bottom surface,
    The fastener member according to claim 1 or 2, wherein the pair of second narrowest surfaces are formed along the second bottom surface.
  4. 　請求項１～３のうち何れか一項に記載のファスナー部材を備えた外壁構造であって、
    　外壁の少なくとも一部を構成する前記パネル体が前記ファスナー部材により前記躯体に接続されていることを特徴とする外壁構造。     An outer wall structure comprising the fastener member according to any one of claims 1 to 3,
    The outer wall structure, wherein the panel body constituting at least a part of the outer wall is connected to the housing by the fastener member.
  5. 　請求項４に記載の外壁構造を施工する外壁施工方法であって、
    　前記第１ファスナー及び前記第２ファスナーのうち一方のファスナーが固定された前記パネル体を既設構造体に対して配置するパネル体配置工程と、
    　前記パネル体配置工程の後、躯体用の配筋を行う配筋工程と、
    　前記配筋工程の後、前記第１ファスナー及び前記第２ファスナーのうち他方のファスナーを前記第１の溝及び前記第２の溝が嵌合するように配置するファスナー配置工程と、
    　前記ファスナー配置工程の後、前記他方のファスナーの一部を埋め込むように躯体用のコンクリートを打設する打設工程と、
    　を備えることを特徴とする外壁施工方法。     An outer wall construction method for constructing the outer wall structure according to claim 4,
    A panel body arrangement step of arranging the panel body to which one of the first fastener and the second fastener is fixed with respect to an existing structure;
    After the panel body placement step, a bar arrangement step for arranging the bars for the frame,
    After the bar arranging step, a fastener arranging step of arranging the other fastener of the first fastener and the second fastener so that the first groove and the second groove are fitted,
    After the fastener placement step, a placing step of placing concrete for the frame so as to embed a part of the other fastener,
    An outer wall construction method characterized by comprising:
  6. 　前記ファスナー配置工程において、前記第１ファスナー及び前記第２ファスナーの嵌合部分を仮固定することを特徴とする請求項５に記載の外壁施工方法。 The outer wall construction method according to claim 5, wherein, in the fastener arranging step, a fitting portion of the first fastener and the second fastener is temporarily fixed.
PCT/JP2012/068969 2012-07-26 2012-07-26 Fastener members, exterior wall structures comprising fastener members, and construction method for exterior walls WO2014016936A1 (en)

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PCT/JP2012/068969 WO2014016936A1 (en) 2012-07-26 2012-07-26 Fastener members, exterior wall structures comprising fastener members, and construction method for exterior walls
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DE3506140A1 (en) * 1984-12-22 1986-06-26 Herbert 8400 Regensburg Utner Panel-anchoring system
CN1295407C (en) * 2004-10-10 2007-01-17 刘超 Ceramic stone connector and connecting method
CN101725199B (en) * 2009-12-07 2012-08-08 德国陶瓷克雷默和鲍尔股份公司 Ceramic plate dry-hanging system
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JPS5934350A (en) * 1982-08-20 1984-02-24 太平洋セメント株式会社 Wall panel attaching apparatus
JPS6164941A (en) * 1984-09-04 1986-04-03 ミサワホ−ム株式会社 Mount structure of wall panel
JPS63169608U (en) * 1987-04-23 1988-11-04
JPH0347351A (en) * 1989-07-14 1991-02-28 Shimizu Corp Constructing wall of pc board

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