JP6346473B2 - 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. Referring to FIG. 9, a general conventional outer wall panel 101 is mounted on a through angle 102 that is supported by a housing and extends in the horizontal direction. Usually, the lower side 103 of the outer wall panel 101 continuously contacts along the longitudinal direction of the through angle 102, and the load of the outer wall panel 101 is evenly distributed to the through angle 102.

  As a seismic isolation technique for the curtain wall, when the chassis is moved horizontally by the shaking of the ground, the outer wall panel 101 swings separately from the shaking movement of the chassis. As shown by a two-dot chain line in FIG. 9 regarding the swinging of the outer wall panel during such an earthquake, the other end 105 of the lower side of the outer wall panel rises and sinks with the one end 104 of the lower side of the outer wall panel as a fulcrum, and then the other side of the lower side. The end 105 serves as a fulcrum and the one end 104 floats upward and sinks, and the lower ends 104 and 105 repeat such ups and downs. In this behavior, the vertical maximum displacement amount Dc of the other end 109 of the upper side 107 farthest from the fulcrum (one end 104) extends parallel to the through angle 102 and supports the outer wall panel just above the outer wall panel 101. 112. That is, when the swing of the outer wall panel 101 is increased, both ends 108 and 109 of the upper side 107 are brought into contact with the through angle 112. Therefore, the maximum swing angle θc of the outer wall panel 101 is equal to the gap width between the upper side 107 and the through angle 112. , It is defined by the length of the lower side 103. For this reason, the maximum swing angle of the outer wall panel 101 cannot be increased, and it has been difficult to cope with a large earthquake with a particularly large swing.

  Alternatively, a technique described in Japanese Patent Laid-Open No. 10-280596 (Patent Document 1) is proposed instead of directly placing the outer wall panel 101 on the angle 102 through the outer wall panel 101 as described above. As shown in FIG. 10, the technique of Patent Document 1 is installed with a locking plate 113 interposed between the central portion of the lower side 103 of the outer wall panel 101 and the through angle 102, and the lower side of the outer wall panel is separated from the through angle. There is technology. According to the technique of Patent Document 1, as shown by a two-dot chain line in the event of an earthquake, the one end 104 and the other end 105 of the lower side 103 swing simultaneously with the center of the lower side 103 supported by the locking plate 113 as a fulcrum. Thus, the vertical maximum displacement Dd of the other end 109 of the upper side 107 can be reduced to about half of the vertical maximum displacement Dc of the general technique described above. This is because, according to the technique of Patent Document 1, the maximum swing angle θd of the outer wall panel is defined by the gap width between the upper side 107 and the through angle 112 and the half length of the lower side 103.

Japanese Patent Laid-Open No. 10-280596

  However, in the technique of Patent Document 1, since the locking plate is welded to the through angle 102, it is necessary to perform a welding operation at a construction site, which is troublesome and increases the risk due to construction errors. Further, when the standard of the outer wall panel 101 is changed and the length of the lower side is different, the welding location of the locking plate 113 must be changed, which is troublesome.

  In view of the above-described circumstances, the present invention provides a technique that does not require welding of a locking plate and that does not cause trouble and troublesome construction even when the length of the lower side 103 of the outer wall panel 101 is changed due to a standard change. For the purpose.

For this purpose, the outer wall panel support structure according to the present invention includes an outer wall panel that covers a building frame, a horizontal portion that is provided in a central region of a horizontal lower side of the outer wall panel and projects downward from the lower side , and the horizontal a locking plate having a vertical portion extending upwardly along the rear surface of the outer wall panel from the part, supported by the skeleton of the building facing via the lower and clearance of the outer wall panels a long member extending in a horizontal direction locking plate A lower through member that supports the horizontal portion of the outer wall panel to receive the load of the outer wall panel, a mounting bracket that is provided on the vertical portion of the locking plate and is connected to the lower through member, and a through hole formed in the mounting bracket And a mounting bracket by threading through a through hole formed in the vertical portion of the locking plate and screwing into a bolt hole provided in the center in the horizontal direction on the back surface of the outer wall panel And a bolt for sewn secure the locking plate to the rear surface of the outer wall panels and the outer wall panel is pivotably supported about a horizontal portion of the locking plate.

  According to the present invention, there is no need to weld the fulcrum plate to the lower through member as in the prior art. Moreover, even if the length of the lower side of the outer wall panel is changed due to the change of the standard, the fulcrum plate only needs to be fixed to the central region of the lower side of the outer wall panel, so that the labor and trouble of construction at the construction site are not caused. It should be understood that the central region of the lower side is a middle region divided into three equal parts on the lower side.

Moreover , according to this invention , three components (a mounting bracket, a fulcrum plate, and an outer wall panel) can be couple | bonded at one place, and the construction efficiency in a building construction site improves.

Moreover , according to this invention , three components can be couple | bonded by the dry-type construction method using a volt | bolt, and the coupling | bonding in a building construction site becomes easy compared with the wet construction method using welding.

  According to the present invention, since the fulcrum plate is fixed to the outer wall panel, there is no need to weld the fulcrum plate to the lower through member, and even if the length of the lower side of the outer wall panel is changed due to the standard change, It does not cause trouble and trouble.

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 outer wall panel which becomes other embodiment. It is a front view which shows typically the support structure of the conventional outer wall panel. It is a front view which shows typically the support structure of the other 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 constituting the lower side 13l 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 upper end of the mounting bracket 18 is attached so as to overlap the vertical flange of the locking plate 20, and the lower end of the mounting bracket 18 forms a downward opening groove with the vertical flange of the locking plate 20. When the vertical flange 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.

  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.

  Next, another embodiment of the present invention will be described. FIG. 8 is an exploded perspective view showing another embodiment of the present invention, and shows a state seen from the inside of the housing. Regarding the other embodiments, the same reference numerals are given to the configurations common to the above-described embodiments, and the description thereof will be omitted, and different configurations will be described below. A lower through member 34 is directly fixed to the beam 12 of the housing. The lower through member 34 is a long steel material having an inverted T-shaped cross section, and includes a horizontal flange 34h and a vertical flange 34l protruding upward from the center of the cross section of the horizontal flange 34h. The horizontal flange 34h is fixed so that one side of the cross section of the horizontal flange 34h is directed to the inside of the housing and joined to the upper surface of the upper flange of the beam 12, and the other side of the cross section of the horizontal flange 34h is taken out of the housing.

  The lower side 13l of the outer wall panel 13 is placed on the other side of the horizontal flange 34h of the lower through member 34. Although three outer wall panels 13 are shown in FIG. 8, the number of outer wall panels placed on one lower through member 34 may be one or more, and the implementation shown in FIG. The form is not limited. In any case, the lower threading member 34 is longer than or substantially equal to the lower side 13l.

  A locking plate 20 is attached to the lower side 13l of the outer wall panel 13 as indicated by an upward arrow in the upper left of FIG. The locking plate 20 is formed in an L shape when viewed from the side, and includes a horizontal portion 20h and a vertical portion 20l extending upward from the one end of the horizontal portion 20h at a right angle. The horizontal portion 20h of the locking plate 20 is a horizontal plate piece and comes into surface contact with a flat lower end surface constituting the lower side 13l. Thereby, the horizontal part 20h protrudes below the lower side 13l. The vertical portion 20 l of the locking plate 20 is a vertical plate piece and is in surface contact with the back surface 13 b of the outer wall panel 13. In addition, a through hole is formed in the vertical portion 201 and is provided on the back surface 13b near the lower side 13l of the outer wall panel 13 so as to be aligned with the bolt hole 13c.

  Since the horizontal portion 20h of the locking plate 20 is interposed between the lower side 13l of the outer wall panel 13 and the horizontal flange 34h of the lower passing member 34, the horizontal flange 34h of the lower passing member 34 is connected to the lower side 13l of the outer wall panel 13. Opposing through a gap. The width of this gap is equal to the thickness of the horizontal portion 20h. The horizontal flange 34h supports the locking plate 20 from directly below and receives the load of the outer wall panel 13 concentrated on the horizontal portion 20h. Further, the vertical flange 34 l of the lower passing member 34 is in contact with the vertical portion 20 l of the rocking plate 20. In this state, a lightning-type mounting bracket 18 is fixedly attached to the vertical portion 20l.

  As shown in the upper side of FIG. 4, a through hole is formed in the upper end portion of the mounting bracket 18. The through hole of the mounting bracket 18 is aligned with the through hole 20 c of the locking plate 20 and the bolt hole 13 c of the outer wall panel 13. The mounting bracket 18, the locking plate 20, and the outer wall panel 13 are fixed together by a common bolt 19.

  Also in the embodiment shown in FIG. 8, the upper side portion of the outer wall panel 13 is connected to the upper through member 24 by the mounting bracket 28 and the bolt 29 as shown in FIGS. 2 to 4. Except for the installation locations of the mounting brackets 18 and 28, as shown in FIG. 2 and FIG. 3 in a normal state, the lower side 13l of the outer wall panel 13 on the upper floor, the horizontal flange 14h of the through angle 14, and the outer wall panel 13 on the lower floor The upper sides 13u are sequentially aligned with a gap therebetween. These gaps allow the outer wall panel 13 to swing. For details, refer to the description regarding FIG. 10 described above.

  When the housing including the beam 12 is shaken by the earthquake, the outer wall panel 13 swings with the locking plate 20 as a fulcrum. This oscillation is the same as that of the prior art shown in FIG. Thereby, the outer wall panel 13 exhibits a seismic isolation function. As shown in FIG. 4, the mounting brackets 18 and 28 receive a through angle or a through member and restrict the outer wall panel 13 from moving outside the housing. However, since the mounting brackets 18 and 28 do not restrict the displacement of the outer wall panel 13 in the through angle or the longitudinal direction of the through member, the outer wall panel 13 can swing around the locking plate 20 as a fulcrum.

  By the way, according to the embodiment shown in FIG. 8, the outer wall panel 13 that covers the housing of the building, the locking plate 20 that is fixed to the central region of the horizontal lower side 13l of the outer wall panel 13 and projects downward from the lower side 13l, and the housing A long member that is supported by the beam 12 and extends in the horizontal direction, is opposed to the lower side 13l of the outer wall panel 13 through a gap, supports the locking plate 20 from directly below, and receives the load of the outer wall panel 13 34, and the outer wall panel 13 is supported so as to be swingable about the locking plate 20. Since the locking plate 20 is fixed to the outer wall panel 13 in this way, it is not necessary to weld the locking plate to the lower through member as in the prior art, and therefore the man-hours and labor at the construction site are reduced. The method of fixing the locking plate 20 to the outer wall panel 13 may be a dry method using bolts 19. Alternatively, the locking plate 20 may be fixed to the outer wall panel 13 in advance in the factory before the outer wall panel 13 is carried into the construction site.

  Further, according to the embodiment shown in FIG. 8, the locking plate 20 has a vertical portion 20 l that rises from the lower side 13 l of the outer wall panel 13 and extends along the back surface 13 b of the outer wall panel 13, and is provided on the vertical portion 20 l of the locking plate 20. The mounting bracket 18 connected to the lower through member 34 is further provided. Thereby, three parts can be combined at one place, and the construction efficiency at the construction site is improved.

  Further, according to the embodiment shown in FIG. 8, a bolt hole 13 c is provided in the back surface 13 b of the outer wall panel 13, and through holes 20 c and 18 c are respectively formed in the vertical portion 20 l and the mounting bracket 18 of the locking plate 20. The bolts 19 sequentially pass through the through holes 18c and the through holes 20c and are screwed into the bolt holes 13c, whereby the mounting bracket 18 and the locking plate 20 are fixed to the back surface 13b of the outer wall panel 13. Thereby, three parts can be combined with a dry construction method, and the combination in a building construction site becomes easy compared with the wet construction method using welding.

  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.

12 frame beam, 13 outer wall panel, 13b back surface,
13l lower side, 13u upper side, 14 lower through member, 15 lower takeout member, 18 mounting bracket, 20 locking plate,
20h Horizontal portion of the locking plate 24 Upper threading member,
25 Upper take-out member, 28 Mounting bracket, 34 Lower through member,
34h Horizontal flange, 34l Vertical flange.

Claims (1)

An outer wall panel covering the building's enclosure,
A locking plate having a horizontal portion provided in a central region of a horizontal lower side of the outer wall panel and projecting downward from the lower side , and a vertical portion extending upward from the horizontal portion along the back surface of the outer wall panel;
A long member that is supported by the housing and extends in the horizontal direction, is opposed to the lower side of the outer wall panel through a gap, and supports the horizontal portion of the locking plate from directly below to load the outer wall panel. A lower threading member to be received ;
A mounting bracket provided on the vertical portion of the locking plate and connected to the lower through member;
The mounting is achieved by threading through a through hole formed in the mounting bracket and a through hole formed in the vertical portion of the rocking plate and screwing into a bolt hole provided in the horizontal center of the back surface of the outer wall panel. A metal fitting and a bolt for fixing together the locking plate to the back surface of the outer wall panel ,
The outer wall panel support structure for the outer wall panel, wherein the outer wall panel is swingably supported around the horizontal portion of the locking plate.

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