JP5178246B2 - Curtain wall structure - Google Patents

Description

The present invention, in the outer wall portion of a building or the like, relates to a curtain wall structure which directly supports the panel, such as glass sheets, more specifically no frame frame-like panel support member, the mullions by a spacing member The present invention relates to a frameless curtain wall structure in which an outer wall surface is configured only by a panel by directly supporting the four corners of the panel at positions spaced outward.

  In recent years, with the diversification of the curtain wall structure, there is no frame frame-like panel support material, and only the panel by directly supporting the four corners of the panel (mainly plate glass) or the four corners and part of the side edges. The frameless construction method that constitutes the outer wall surface is spreading. Various structures have been proposed as a panel support structure for the frameless method.

Recently, for example, in Patent Document 1 below, as shown in FIG. 11, panels P, P, etc., such as plate glass, which are arranged adjacent to each other in the vertical and horizontal directions on the outer wall of a building or the like, are frame-shaped. Without using the panel support material, the panel support devices 50, 51,... Disposed at the corner intersections and the intermediate side edges (two points) where the corners of the panels P, P. Thus, a curtain wall structure is disclosed in which the outer wall is configured substantially only by the panels P, P. Panel support bracket hardware 52, 52... (Hereinafter simply referred to as a support bracket) is fixed to the outdoor side end face of each floor frame F, and a corner panel support device 50 provided on the support bracket 52. 50... Supports the corners of the panels P, P..., And builds up the vertical members 53, 53... Between the floor frames F, F, and projects from the vertical members 53 in the outdoor direction. Side edge panel support devices 51, 51... Are provided at the tips of 54, 54... To support the intermediate side edges (two points) of the panel P. The strut members 54, 54... Are suspended by rod members 55 arranged in the direction of their own weight (hereinafter referred to as the first example).
Japanese Patent Laid-Open No. 2004-212344

  As in the curtain wall structure according to the preceding first example, panel support devices 50... 51. In the case of a curtain wall in which the four corners and side edges of the panel are supported by the support devices 50... 51, when a seismic load is applied, the member group constituting the panel surface is separated from the building housing side. Because there is a distance, instead of being displaced integrally with the building frame and the members that make up the panel surface, the panel surface is configured to follow this when the building sidely swings. The member group that causes the vibration (interlayer displacement) occurs. The spacing member (strut 54) is low in rigidity and additionally subjected to static and dynamic inertia forces, so that deformation of the member group constituting the panel surface is increased, and the spacing member There was a problem that excessive external force might act and cause damage.

Therefore a main object of the present invention, a panel disposed adjacent to vertical and horizontal directions, by spacing members, at a position away from the mullion, panel corner portions of the panel are arranged in the corner intersections to be butted The panel support device has a double skin structure in which at least the panel support devices adjacent in the vertical direction are connected to each other by a suspension rod or a suspension cable , and the panel is also installed on the vertical member. An object of the present invention is to provide a curtain wall structure in which the displacement / deformation of a group of members constituting a panel surface is reduced when an earthquake load is applied, and the external force acting on the spacing member is reduced.

As the present invention according to claim 1 to solve the above problems, in a position away the panel which is disposed adjacent to the vertical and horizontal directions from the mullion, the corner portions of the panel are arranged in the corner intersections to be butted The panel support device is a double skin in which at least the panel support devices adjacent in the vertical direction are connected to each other by a suspension rod or a suspension cable , and the panel is also installed on the vertical member. In the curtain wall structure of the structure,
The panel supporting device is supported via a spacing member disposed along the inside and outside direction between said lateral upright, the ends of the spacing members, building frame or mullion side connecting portion and for each panel support device-side connecting portion, rotatable in the vertical direction in the vertical plane, and Chi lifting a predetermined deflection angle in the lateral direction in the horizontal plane, it is connected so as to be movable in the chamber outwardly A curtain wall structure is provided.

In the first aspect of the present invention, the end of the spacing member is rotatable in the vertical direction within the vertical plane with respect to each of the vertical-side connecting portion and the panel support device-side connecting portion, and is horizontal. Chi lifting a predetermined deflection angle in the horizontal direction in the inner, are connected so as to be movable in the chamber outwardly. Therefore, even if a primary swing occurs on the building side, this swing is absorbed and alleviated by the connecting portions at both ends of the spacing member, so that the displacement and deformation of the members constituting the panel surface should be reduced. It is possible to reduce the external force acting on the spacing member.

  According to a second aspect of the present invention, the connection structure of the end portion of the spacing member, the housing or the vertical side connection portion, and the panel support device side connection portion is a first vertically oriented first connection. A plate is provided, and two vertically oriented second connecting plates disposed apart from each other are provided, the first connecting plate is inserted between the second connecting plates, and a shaft member around a horizontal axis 2. The curtain wall structure according to claim 1, wherein a swing angle in the horizontal plane is secured by a gap between the first connecting plate and the second connecting plate and a gap between the shaft member. Provided.

  The invention according to claim 2 shows a specific connection structure of the end portion of the spacing member, the housing or the vertical side connection portion, and the panel support device side connection portion. It is most simple and desirable that the deflection angle in the horizontal plane is ensured by a gap between the first connecting plate and the second connecting plate and a gap between the shaft members.

  According to a third aspect of the present invention, there is provided the curtain wall structure according to the second aspect, in which an elastically deformable filler is interposed between the first connecting plate and the second connecting plate.

  In the invention according to claim 3, an elastically deformable filler is interposed between the first connecting plate and the second connecting plate. In the case of the second aspect of the invention, the relative movement in the horizontal direction occurs due to the play between the first connecting plate and the second connecting plate, and rattling occurs. Accordingly, by interposing the elastically deformable filler between the first connecting plate and the second connecting plate, it is possible to prevent relative movement in the horizontal direction and to eliminate the occurrence of play.

  According to a fourth aspect of the present invention, there is provided the curtain wall structure according to the second aspect, wherein both side surfaces of the first connecting plate are bulged arc surfaces and are in contact with the second connecting plate.

  In the invention described in claim 4, both side surfaces of the first connecting plate are bulged arc surfaces and are brought into contact with the second connecting plate. As a result, relative horizontal movement can be prevented, and the occurrence of backlash can be eliminated.

According to the present invention as detailed above, the panels being disposed adjacent to vertical and horizontal directions, by spacing members, at a position away from the mullion is positioned in the corner intersections of the corner portions are butted of the panel The panel support device is a double skin structure in which at least the panel support devices adjacent in the vertical direction are connected to each other by a suspension rod or a suspension cable , and the panel is installed on the standing member. In the curtain wall structure, it is possible to reduce the displacement / deformation of the group of members constituting the panel surface when an earthquake load is applied, and to reduce the external force acting on the spacing member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[Curtain wall structure]
1 is a view of a curtain wall, FIG. 2 is a view taken along the line II-II in FIG. 1, FIG. 3 is a view taken along the line III-III in FIG. 1, and FIG. 5 is an enlarged longitudinal sectional view of the main part, and FIG. 6 is a transverse sectional view thereof.

As shown in FIG. 1, the curtain wall structure 1 is configured such that panels P, P, etc. that are adjacently arranged in the vertical and horizontal directions on the outer wall surface of a building or the like do not use a frame-like panel support member. The panels P, P ... are supported by the panel support devices 2, 2 ... arranged at the corner intersections where the corners are abutted, so that the outer wall is substantially constituted only by the panels P, P ... The panel support device 2 is connected to the vertical 3 by a strut 4 (the “interval holding member” of the present invention) and is adjacent in the vertical direction as shown in FIG. The panel support devices 2, 2... Are connected to each other by suspension rods 5, 5, and the panel support devices 2, 2... Adjacent in the horizontal direction are also connected to each other by tie rods 6, 6. It is those who are. The curtain wall structure is a curtain wall having a double skin structure in which panels P _S , P _S.

Hereinafter, the curtain wall structure 1 will be described in detail.
Specifically, as shown in FIGS. 4 to 6, in the curtain wall structure 1, the vertical 3 is arranged along the vertical direction on the indoor side corresponding to the vertical joints of the panels P, P. One end side (indoor side) of the strut 4 is connected to the outdoor side of the stand 3 at a position corresponding to the corner intersection of each panel, and the other end side (outside side) of the strut 4 The panel support device 2 is connected to the above. Each of the upper, lower and left and right sides of the panel support device 2 is provided with screw holes, and the panel support devices 2, 2... Adjacent in the vertical direction are connected to each other by suspension rods 5, 5, The panel support devices 2 adjacent to each other in the horizontal direction are also connected to each other by tie rods 6 and 6.

The vertical 3 is a back mullion system, and a vertical rib 3b is formed along the longitudinal direction of the member on the outdoor side surface of the rectangular hollow portion 3a, and a pressing edge 3c is formed on the outdoor side of the vertical rib 3b. A connecting rib 3d for connecting the strut 4 is formed on the outdoor side of the pressing edge 3c. The rear panels P _S and P _S are supported by a panel fitting groove M formed by the outdoor side surface of the rectangular hollow portion 3a, the vertical rib 3b, and the pressing edge 3c.

  The fixing bracket 10 for connecting the strut 4 to the vertical 3 is a member in which a longitudinal groove 10a into which the connecting rib 3d is inserted is formed on the indoor side and a shaft connecting portion 10b is formed on the outdoor side. Yes, with the connecting rib 3d inserted, the bolt 11 is passed through from the side and fastened with a nut. The end portion of the strut 4 has a screw coupling portion 12a for a screw hole formed in the end surface of the strut, and a pin coupling portion 12b that is rotatably supported around a horizontal axis with respect to the shaft coupling portion 10b. The connecting metal fitting 12 is provided, and the strut length can be adjusted by adjusting the screwing amount of the screwing portion 12a. The connection fitting 12 is also provided on the other end side of the strut 4.

  The panel support device 2 is a member in which an outdoor panel support portion 13 and an indoor rod connecting portion 14 are integrally connected by a coupling portion 15. As shown in FIG. 4, the panel support unit 13 includes a panel back side support plate 13a and a panel front side support plate 13b. A panel mounting table 13c is provided on the front side of the panel back side support plate 13a. In the state where the lower ends of the panels P, P arranged on both sides of the upper stage are placed, and the upper ends of the panels P, P arranged on both sides of the lower stage are positioned below the panel placing table 13c, The panel front support plate 13b is applied to the outside of the panel back support plate 13a, the panel front support plate 13b is fixed by bolts 16, and the corner portions of the panels P, P. Yes. In addition, rubber packing is interposed between the panel P and the panel back side support plate 13a and the panel front side support plate 13b and on the top surface of the panel mounting table. Further, the joint between the panels is filled with a seal.

  The rod connecting portion 14 is a member having a strut connecting portion 14b on the back side of a substantially disc-shaped connecting main body portion 14a having a predetermined thickness. The strut connecting portion 14b is connected to the other end side of the strut 4. The connected connecting member 12 is pivotally supported around the horizontal axis. Screw holes 14c, 14c... Are provided in the upper, lower and left and right sides of the connecting main body 14a, and the lower end of the upper suspension rod 5 is screwed and connected to the upper screw hole 14c. The upper end of the lower suspension rod 5 is screwed to 14c. Further, tie rods 6 and 6 are connected to the screw holes 14c on both the left and right sides.

  The threaded connection of the suspension rods 5 and 5 is formed with screw grooves at the upper and lower ends of the suspension rod 5 and directly threaded into the threaded holes 14c of the connection body 14a. 6 is connected to the rod connecting portion 14 via the connection sockets 16 and 17. As shown in FIG. 6, the connection socket 16 on the right side of the drawing has a male screw portion 16 a for the screw hole 14 c of the rod connecting portion 14 on one end side, and a female screw to which one end of the tie rod 6 is screwed on the other end side. It has a structure having a threaded portion 16 b, and the rod length is adjusted by the screwing amount of the tie rod 6. The connection socket 17 on the left side of the drawing is a socket member in which a rod insertion hole is formed in the bottom surface of a hollow screw hole whose one end is open. A circular nut 19 is screwed into the end of the tie rod 6 so that the tie rod 6 While being held so as not to be pulled out, a male screw portion 17a for the screw hole 14c of the rod connecting portion 14 is formed by screwing all the screw bolts 18 into the hollow screw holes. As a result, when the tie rod 6 is extended due to thermal expansion, the circular nut 19 is slightly slidable in the hollow screw hole to absorb the extension and prevent buckling. .

  In the curtain wall structure 1, the panel support device 2 is supported via struts 4 arranged in the indoor / outdoor direction, and an end portion of the strut has a housing side connecting portion (a vertical three side connecting portion). ) And the panel support device 2 side connection portion so as to be rotatable in the vertical direction around the horizontal axis in the vertical plane and to have a predetermined deflection angle in the horizontal direction in the horizontal plane. Yes.

  That is, the connecting bracket 12 is provided at both ends of the strut 4, and the connecting bracket 12 is rotatable in the vertical direction in the vertical plane with respect to the fixing bracket 10 on the side 3, and left and right in the horizontal plane. They are connected so as to have a predetermined deflection angle in the direction. The range of the deflection angle is tan θ = 1/20 or more, preferably tan θ = 1/12 or more.

In order to give a deflection angle in the horizontal plane, as shown in FIG. 7, a single vertically-connected first connection plate 10 b (= shaft connection portion 10 b) is provided for the fixture 10. The two second connection plates 12c and 12d are provided so as to be separated from the connection fitting 12, and the first connection plate 10b is inserted between the second connection plates 12c and 12d, and the horizontal axis by a structure in which axially supported by the shaft member 20 around, first rotatable about a horizontal axis in a vertical plane, Joint Gap S ₁ between the first connection plate 10b and the second connecting plate 12c, 12d and by Joint Gap S ₂ between the shaft member 20, to have a predetermined deflection angle θ in the horizontal plane. As shown in FIG. 8, the deflection angle θ in the horizontal plane is preferably tan θ = 1/20 or more, preferably tan θ = 1/12 or more, based on the structural analysis result.

By the way, when the deflection angle θ in the horizontal plane is ensured by the gap S ₁ and the gap S ₂ as in the above-described structure, the relative movement is caused in the horizontal direction, and rattling occurs. Therefore, as shown in FIG. 9, the relative movement in the horizontal direction is achieved by interposing an elastically deformable filler 21, such as a rubber filler, between the first connecting plate 10b and the second connecting plates 12c and 12d. Can be prevented, and the occurrence of play can be eliminated. Alternatively, as shown in FIG. 10, if both side surfaces of the first connecting plate 10b are bulged arc surfaces 10c and are brought into contact with the second connecting plates 12c and 12d, relative horizontal movement can be prevented. Can be eliminated.

[Other examples]
(1) Although the suspension rod 5 and the tie rod 6 are used in the above embodiment, a suspension cable and a tie cable may be used.

It is a figure from the outdoor side of a curtain wall. It is the II-II arrow directional view of FIG. It is the III-III arrow directional view of FIG. It is an exploded view of the panel support apparatus 2 part. It is a principal part expansion longitudinal cross-sectional view of the panel support apparatus 2 part. It is a principal part expanded horizontal sectional view of the panel support apparatus 2 part. FIG. 4 is an enlarged detail view of a connecting portion between the strut 4 and the fixing bracket 10. (A) is a figure which shows the deflection angle (theta) in the horizontal surface in the connection part of the strut 4 and the fixing bracket 10, (B) is a figure which shows the deflection angle (theta) in the connection part of the strut 4 and the panel support apparatus 2. is there. It is a figure which shows the modification (the 1) of a strut connection part. It is a figure which shows the modification (the 2) of a strut connection part. It is a longitudinal cross-sectional view which shows the panel support structure by the conventional frameless construction method.

  DESCRIPTION OF SYMBOLS 1 ... Curtain wall, 2 ... Panel support device, 3 ... Standing, 4 ... Strut, 5 ... Hanging rod, 6 ... Tie rod, 7 ... Tension introduction adjustment device, 10 ... Fixing metal fitting, 12 ... Connection metal fitting, 13 ... Panel support , 14 ... Rod connecting part, 15 ... Coupling part, 14c ... Screw hole, 16 · 17 ... Connection socket, P ... Panel

Claims (4)

At a position apart a panel disposed adjacent to the vertical and horizontal directions from the mullion, while supported by a panel support device corner portions are arranged in the corner intersections to be butted of said panel, said panel support device, at least In the curtain wall structure of a double skin structure in which panel support devices adjacent in the vertical direction are connected to each other by a hanging rod or a hanging cable , and the panel is also installed on the vertical member ,
The panel supporting device is supported via a spacing member disposed along the inside and outside direction between said lateral upright, the ends of the spacing members, building frame or mullion side connecting portion and for each panel support device-side connecting portion, rotatable in the vertical direction in the vertical plane, and Chi lifting a predetermined deflection angle in the lateral direction in the horizontal plane, it is connected so as to be movable in the chamber outwardly Curtain wall structure characterized by that.   The connection structure between the end of the spacing member and the casing or the vertical connection part and the panel support device side connection part is provided with one vertically-connected first connection plate on one side and separated on the other side. Provided with two vertically oriented second connecting plates disposed between the first connecting plate and the first connecting plate inserted between the second connecting plates and supported by a shaft member around a horizontal axis, 2. The curtain wall structure according to claim 1, wherein a deflection angle inside is secured by a gap between the first connecting plate and the second connecting plate and a gap between the shaft member.   The curtain wall structure according to claim 2, wherein an elastically deformable filler is interposed between the first connecting plate and the second connecting plate.   The curtain wall structure according to claim 2, wherein both side surfaces of the first connecting plate are bulged arc surfaces and are in contact with the second connecting plate.

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