JP6346472B2 - Support structure for outer panel - Google Patents

Description

  The present invention relates to a curtain wall that constitutes an outer wall of a building by covering the building frame from the outside.

  The curtain wall is composed of a plurality of rectangular outer wall panels, and the outer wall panels are aligned in the horizontal direction and also in the vertical direction. Each outer wall panel is supported by the casing so as to be taken out of the casing from the casing. General structures for attaching each outer wall panel to a building frame are disclosed in Japanese Patent No. 5216405 (Patent Document 1), Japanese Patent Application Laid-Open No. 2005-127014 (Patent Document 2), and Japanese Patent Application Laid-Open No. 11-256737 (Patent Document). 3). FIG. 8 is a longitudinal sectional view of a conventional general outer wall panel mounting structure as seen from the side of the outer wall panel. In a conventional general outer wall panel mounting structure, one long through angle (also called a ruler angle) is formed between the H-shaped steel 5 constituting the frame beam and the outer wall panel (also called a wall panel or simply a panel) 1. ) 6 and a plurality of mounting brackets (also referred to as self-weight brackets) 8 are interposed.

  The through angle 6 extends long across a plurality of outer wall panels aligned in the horizontal direction. The horizontal flange of the through angle is arranged so as to overlap the upper flange of the beam (H-shaped steel 5), and the vertical flange of the through angle 6 is taken out of the building than the beam (H-shaped steel 5).

  A plurality of mounting brackets 8 are attached to a long extending through angle 6 at a predetermined interval in the longitudinal direction, and are U-shaped or lightning bolt type (also called Z-shaped) having a downward opening when viewed from the side. It has a latching | locking part and the connection parts 8e and 8a which protrude ahead from this latching | locking part. The engaging portion of the mounting bracket 8 is inserted into the upward vertical flange of the through angle 6 from above and is engaged with the through angle 6. The connecting portions 8e and 8a of the mounting bracket are connected to the lower end of the outer wall panel 1.

Japanese Patent No. 5216405 JP 2005-127014 A JP 11-256737 A

  However, the above-described conventional outer wall panel mounting structure causes problems as described below. That is, since the horizontal flange of the through angle is installed so as to overlap the upper flange of the beam, the space above the through angle and the space below the through angle are blocked. If it does so, moisture will stagnate along an outer wall panel back surface, dew condensation will arise, and the durability of a building will fall.

  An object of this invention is to provide the support structure of an outer wall panel provided with a ventilation layer in the back surface side of an outer wall panel in view of the above-mentioned situation.

The support structure of the outer wall panel according to the invention for this purpose is not covered the skeleton to be erected on foundation of the building, a plurality of external wall panels to be vertically aligned over a plurality floor to the upper floor from the first floor, each floor Is a long member that extends in the horizontal direction and has a horizontal flange that supports the lower side of the outer wall panel from directly below and receives the load of the outer wall panel, and a vertical flange that is applied to the back surface of the outer wall panel When, a plurality of spaced longitudinally spacing of the lower threading member, one end of which is fixed to the base or precursor, Ru with a lower the draw member to which the other end is cantilevered lower threading member. And the lower part taking-out member arranged on the first floor is fixed to the foundation, the lower part taking-out member arranged on the upper floor is fixed to the housing, between the vertical flange of the foundation of the building and the lower through member, and the housing and between the vertical flange of the lower threading member, constituting a gap for ventilation flowing from 1 floor to the upper floor ceiling.

According to the present invention, since the gap is formed, the upper space and the lower space communicate with each other and are not blocked as in the conventional through angle. Ventilation can be achieved by flowing air through the back surfaces of a plurality of outer wall panels aligned in the vertical direction over a plurality of floors . Therefore, no condensation occurs on the back surface and the casing of the outer wall panel, and the durability of the building is improved.

As one embodiment of the present invention, an upper threading member that is vertically spaced from the lower threading member and is arranged on each floor and extends horizontally along the upper side portion of the outer wall panel and is connected to the back surface of the outer wall panel; And an upper take-out member that has one end fixed to the housing and the other end cantilevered to support the upper through member, and is disposed between the housing and the upper through member from the first floor. Create a gap for ventilation that flows to the ceiling . According to this embodiment, it is possible to provide a gap penetrating in the vertical direction on both the upper side and the lower side of the outer wall panel, and ventilate along the back surface of the plurality of outer wall panels aligned in the vertical direction over a plurality of floors. be able to.

  As a further preferred embodiment of the present invention, the lower and / or upper carrying member is fixed to the housing by a dry method. According to this embodiment, it can attach to a housing easily, adjusting the position of these taking-out members at a building construction site. In addition, a dry construction method means connecting two members using mechanical connection tools, such as a volt | bolt, a nut, and a clip, without using welding or an adhesive agent. As another embodiment, these take-out members may be attached and fixed to the housing by welding.

  The present invention is not limited to one embodiment, but the plurality of lower take-out members may be fixed by welding to the vertical flange portion of the lower through member. According to this embodiment, a plurality of lower take-out members and one lower through member can be handled as one component by welding and fixing in a factory in advance. Therefore, the assembly efficiency at the construction site is improved. As another embodiment, the upper threading member and the upper take-out member may be coupled by a dry method such as a bolt, a nut, or a clip instead of a wet method using welding or an adhesive.

  The width of the gap is not particularly limited, but is preferably 10 mm or more for smooth ventilation. The larger the gap, the better, but note that if it is too large, the overall wall thickness from the outer wall surface to the inner wall surface of the living space will increase.

  Thus, according to the present invention, the space on the back side of the outer wall panel can be ventilated in the vertical direction by the gap for ventilation. Therefore, condensation does not occur in the housing, and the durability of the building is improved.

It is a disassembled perspective view which shows the support structure of the outer wall panel which becomes one Embodiment of this invention. It is sectional drawing which looked at the embodiment from the side, and shows the clearance gap for ventilation | gas_flowing. It is sectional drawing which looked at the embodiment from the side, and shows a taking-out member. It is sectional drawing which looked at the same embodiment from the side, and shows a mounting bracket. It is a disassembled perspective view which shows the structure which takes out and supports an outer wall panel from a housing. It is a top view which shows the through angle supported so that it may carry out to a housing outer side from a beam. It is the side view which looked at the through angle in the longitudinal direction. It is sectional drawing which shows the support structure of the conventional outer wall panel.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view showing a support structure of an outer wall panel according to an embodiment of the present invention, and shows a state seen from the outside of a housing. 2 to 4 are cross-sectional views of the same embodiment as viewed from the side. FIG. 2 is a gap for ventilation, FIG. 3 is a take-out member, and FIG. FIG. 5 is an exploded perspective view showing a structure for supporting the outer wall panel so as to be taken out from the housing.

  As shown in FIGS. 1 and 5, the building of this embodiment includes a housing formed by joining a plurality of pillars 11 and a plurality of beams 12, and a plurality of outer wall panels 13 covering the housing. In order to facilitate the understanding of the drawing, the exploded perspective view of FIG. 1 shows the pillars from the first floor to the second floor, shows the beam of one unit in the horizontal direction, and shows the other frame by virtual lines, The outer wall panel 13 is removed from the casing or omitted. Actually, the plurality of outer wall panels 13 are aligned in the horizontal direction in the same posture and aligned in the vertical direction over a plurality of floors. By using one column 11, one beam 12, and two left and right outer wall panels 13 as a unit, these can be increased to repeat in the vertical direction and the horizontal direction.

  The lower end of the column 11 is fixed to the top end of the concrete foundation 10 of the frame. The column 11 is a steel material having a rectangular cross section extending in the vertical direction, and is disposed at a predetermined interval in the horizontal direction, and the upper end of the column 11 supports both ends of the beam 12. The beam 12 is H-shaped steel as shown in FIGS. 2 to 4, and extends in the horizontal direction to form a space between the upper floor and the lower floor.

  The outer wall panel 13 is a rectangle having an upper side 13u, a lower side 13l, a first side 13m, and a second side 13n. The first side 13m and the second side 13n are approximately the same size as the height of each floor of the building. Have The upper side 13u and the lower side 13l are shorter than the first side side 13m and the second side side 13n. The outer wall panel 13 is a concrete board, for example.

  The lower side 13 l of the outer wall panel 13 is supported by the housing via the through angle 14. In addition, the outer wall panel 13 is connected to the housing through the upper threading member 24 at the upper side portion in the vicinity of the upper side 13u.

  FIG. 6 is a plan view showing the through angle 14 supported so as to be taken out from the beam 12 to the outside of the housing. FIG. 7 is a side view of the through angle 14 as viewed in the longitudinal direction. The through angle 14 is an L-shaped steel, and is a long lower through member having a horizontal flange and a vertical flange. 1 to 4, the through angle 14 extends horizontally along the lower side 13l of the outer wall panel 13, and has at least substantially the same length as the lower side 13l as shown in FIG. In addition to this embodiment, although not shown in the drawing, the through angle 14 may be substantially the same length as the beam 12 or may be several times longer than the lower side 13l.

  The horizontal flange 14h of the through angle 14 supports the lower side 13l of the outer wall panel 13 from directly below and receives the load of the outer wall panel 13. The vertical flange 141 of the through angle 14 is applied to the back surface 13 b of the outer wall panel 13.

  The through-angle 14 extends in parallel with the beam 12 or the concrete foundation 10 and is supported by them. A plurality of lower take-out members 15 are provided between the through angle 14 and the beam 12. In the present embodiment, as shown in FIG. 6, three lower takeout members 15 are provided for one long through-angle 14, but the number of lower takeout members 15 is two or more. There is no particular limitation.

  One end of the lower take-out member 15 is fixed to the upper flange of the beam 12 with a bolt 16 and a nut 17 (FIG. 3), and the other end of the lower take-out member 15 protrudes to the outside of the housing (beam 12). 14 is cantilevered. A gap G <b> 1 for ventilation is formed between the vertical flange 141 of the through angle 14 and the upper flange of the beam 12. The gap G1 should not be too narrow in order to ensure ventilation, and an interval of 10 mm or more should be ensured. The other end of the lower take-out member 15 is welded and fixed to a corner portion of the through angle 14 in advance at a factory or the like. One through angle 14 and a plurality of lower take-out members 15 constitute one part as shown in FIG.

  Referring to FIG. 4, one locking plate 20 is fixed to the lower side 13 l of the outer wall panel 13 in the center in the horizontal direction in advance. The locking plate 20 is a steel plate and is formed in an L shape so as to have a vertical portion extending in the vertical direction and a horizontal portion extending in the horizontal direction. The horizontal portion of the locking plate 20 is provided along the lower end surface of the outer wall panel 13. A vertical portion of the locking plate 20 is provided along the back surface 13 b of the outer wall panel 13. The locking plate 20 may be fixed to the outer wall panel 13 before being carried into the building construction site, but may be fixed together with a bolt 19 together with a mounting bracket 18 described later at the building construction site. Although the details will be described later, the locking plate 20 supports the outer wall panel 13 as a fulcrum of the outer wall panel 13 and is also referred to as a fulcrum plate.

  A mounting bracket 18 is fastened and fixed by a bolt 19 near the lower side 13l of the outer wall panel 13 to which the vertical flange 14l of the through angle 14 is applied. The mounting bracket 18 is a steel plate extending in the vertical direction, and is formed in a lightning bolt shape so that the upper end portion and the lower end portion thereof are parallel to each other. The mounting bracket 18 is attached so that the upper end portion thereof overlaps with the vertical portion of the locking plate 20, and the lower end portion of the mounting bracket 18 forms a downward opening groove with the vertical portion of the locking plate 20. When the vertical flange 141 of the angle 14 enters upward through the downward groove, the outer wall panel 13 is locked to the through angle 14 so as not to be detached. In this way, the outer wall panel 13 is attached and fixed to the through-angle 14 so as not to be removed in addition to depositing its own weight in the through-angle 14. In addition, when the horizontal flange 14h of the through angle 14 receives the load of the outer wall panel 13, the locking plate 20 is interposed between the lower end surface of the outer wall panel 13 and the horizontal flange 14h. Although not shown, the horizontal flange 14h may be in direct contact with the lower end surface of the outer wall panel 13.

  As shown in FIGS. 1 to 5, the upper through member 24 is a steel strip extending horizontally along the upper side 13 u side portion of the outer wall panel 13, and is in surface contact with the vertical back surface 13 b of the outer wall panel 13. Further, as shown in FIG. 1, the upper threading member 24 has at least substantially the same length as the upper side 13u. In addition to this embodiment, although not shown in the drawing, the upper threading member 24 may be approximately the same length as the beam 12 or may be several times longer than the upper side 13u. In order to ensure the bending strength of the upper through member 24, a flange or a rib may be formed on the surface of the upper through member 24 on the side opposite to the outer wall panel 13.

  The upper threading member 24 extends in parallel with the beam 12 with a gap G2 therebetween, and is supported by the lower flange of the beam 12. A plurality of upper take-out members 25 are provided between the upper threading member 24 and the lower flange of the beam 12. In the present embodiment, as shown in FIG. 5, three upper takeout members 25 are provided for one long upper passing member 24, and the number of the upper takeout members 25 is particularly two or more. It is not limited. The upper carry-out member 25 is a triangular bracket as viewed from the side as shown in FIG.

  One end of the upper carry-out member 25 is fixed to the lower flange of the beam 12 with a bolt 26 and a nut 27 (FIG. 3), and the other end of the upper carry-out member 25 protrudes to the outside of the housing (the beam 12) to be an upper passage member. 24 is cantilevered. And the clearance gap G2 for ventilation | gas_flowing is comprised between the upper side through member 24 which stood | started up vertically, and the lower flange of the beam 12. As shown in FIG. Similarly to the gap G1, the gap G2 should not be too narrow in order to ensure ventilation, and an interval of 10 mm or more should be ensured. The other end of the upper take-out member 25 is fixed by welding to the surface of the upper passing member 24 in advance at a factory or the like. One upper threading member 24 and a plurality of upper take-out members 25 constitute one component.

  With reference to FIG. 4, the upper through member 24 comes into surface contact with the back surface 13 b on the upper side 13 u side of the outer wall panel 13, and the mounting bracket 28 is fastened and fixed by a bolt 29. One mounting bracket 28 is arranged at the center in the horizontal direction of the outer wall panel 13. The mounting bracket 28 is a steel plate extending in the vertical direction, and is formed in a lightning bolt shape so that the upper end portion and the lower end portion thereof are parallel to each other. And the lower end part of the attachment metal fitting 28 is attached so that it may surface-contact with the back surface of the outer wall panel 13, and the upper end part of the attachment metal fitting 28 comprises the groove | channel of upward opening between the back surface of the outer wall panel 13. When the upper passage member 24 enters the upward groove downward, the outer wall panel 13 is locked to the upper passage member 24 so as not to be detached. Thus, the outer wall panel 13 is attached and fixed to the upper threading member 24 so as not to be detached.

  A vertical rail 31 is attached to the back surface 13b of the intermediate region between the upper side 13u and the lower side 13l of the outer wall panel 13 with a gap in the horizontal direction. A heat insulating material 32 is attached to the vertical beam 31. In this way, a gap G3 is formed between the outer wall panel 13 and the heat insulating material 32. Thereby, gaps G2, G3, G1 continuous in the vertical direction are formed along the back surface 13b of the outer wall panel 13. Moreover, these gaps G2, G3, G1 constitute a passage extending over the outer wall panel 13 arranged in a plurality in the vertical direction. Therefore, on the back surface 13b of each outer wall panel 13, air flows and is ventilated as shown by arrows in FIGS.

  According to the present embodiment, a plurality of lower take-out members 15 are arranged at intervals in the longitudinal direction of the through angle 14 between the long through angle 14 extending in the horizontal direction and the beam 12 of the housing. One end of the lower take-out member 15 is fixed to the beam 12, the other end of the lower take-out member 15 supports the through angle 14 in a cantilever manner, and ventilation is performed between the beam 12 and the vertical flange 14 l of the through angle 14. A gap G1 is formed. This allows ventilation on the back side of the outer wall panel 13, prevents condensation, and improves the durability of the outer wall panel 13 and the frame (columns 11 and beams 12).

  In addition, according to the present embodiment, a plurality of upper through members 24 that extend horizontally along the upper side portion of the outer wall panel 13 and are connected to the back surface 13b of the outer wall panel 13 are disposed at intervals in the longitudinal direction of the upper through member 24. The upper take-out member 25 is further provided. One end of the upper take-out member 25 is fixed to the beam 12, the other end of the upper take-out member 25 supports the upper passing member 24 in a cantilever manner, and a gap G <b> 2 for ventilation between the beam 12 and the upper passing member 24. Configure. This allows ventilation on the back side of the outer wall panel 13, prevents condensation, and improves the durability of the outer wall panel 13 and the frame (columns 11 and beams 12). Accordingly, the upper space and the lower space of the beam 12 communicate with each other through the gaps G1 and G2, and air can flow between the two spaces.

  The vertical dimension, horizontal dimension, and thickness dimension of the outer wall panel are not limited to this embodiment. Further, the number of outer wall panels assigned to one beam is not limited to this embodiment.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The support structure of the outer wall panel according to the present invention is advantageously used in a construction method.

10 concrete foundation, 11 column of frame, 12 beam of frame,
13 outer wall panel, 13b back surface, 13l lower side, 13u upper side,
14 through angle (lower through member), 14h horizontal flange,
14l vertical flange, 15 lower take-out member, 18 mounting bracket,
20 locking plate, 24 upper threading member, 25 upper takeout member,
28 Mounting bracket, G1, G2, G3 gap.

Claims (6)

Have covered the skeleton to be erected on foundation of the building, a plurality of external wall panels to be vertically aligned over a plurality floor to the upper floor from the first floor,
A long member arranged on each floor and extending in the horizontal direction, comprising a horizontal flange for supporting the lower side of the outer wall panel from directly below and receiving the load of the outer wall panel, and a vertical flange applied to the back surface of the outer wall panel A lower threading member having,
Wherein a plurality of spaced longitudinally spacing of the lower threading member, one end of which is fixed to the foundation or the skeleton, the lower the draw member and with the other end supporting the lower threading member in a cantilever manner ,
The lower take-out member arranged on the first floor is fixed to the foundation,
The lower taking-out member arranged on the upper floor is fixed to the housing,
Between the vertical flanges of the base and the lower threading member, and between the vertical flange of the skeleton and the lower threading member, constituting a gap for ventilation flowing from 1 floor to the upper floor ceiling, outer wall panels Support structure. An upper through member that is vertically spaced from the lower through member, is arranged on each floor , extends horizontally along the upper side portion of the outer wall panel, and is connected to the back surface of the outer wall panel;
A plurality of upper passage members arranged at intervals in the longitudinal direction, one end being fixed to the housing, and the other end further comprising an upper carrying member that cantilevered the upper passage member;
The support structure of the outer wall panel according to claim 1, wherein a gap for ventilation flowing from the first floor to the upper floor ceiling is formed between the housing and the upper through member.   The outer wall panel support structure according to claim 2, wherein the plurality of upper carry-out members are fixed to the upper through member by welding.   The support structure of the outer wall panel according to any one of claims 1 to 3, wherein the lower and / or upper take-out member is fixed to the housing by a dry method. The plurality of lower take-out members are fixed by welding to the vertical flange portion of the lower through member,
The support structure of the outer wall panel according to claim 4. The support structure of the outer wall panel according to any one of claims 1 to 5, wherein a width of the gap is 10 mm or more.

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