JP2013011149A - Vertical multiple window pc curtain wall - Google Patents

Abstract

An object of the present invention is to improve the design by using a window frame to achieve framelessness by preventing the vertical frame from being seen from the outside while satisfying various characteristics such as durability, fire resistance and heat insulation. A vertical window PC curtain wall is used.
A PC curtain wall unit (1) has a decorative plate (3) stretched on the outer surface side of concrete (2), and vertical frames (7, 8) fixed on both side surfaces of the concrete (2). Is concealed by the decorative plate 3 extending in the direction toward the center of the opening from the opening forming surface of the concrete 2, and the tip is placed on the edge of the decorative plate 3 on the outside of the vertical frames 7 and 8. The 1st gasket 13 which extended the part to the outdoor side direction is attached continuously along the vertical direction.
[Selection] Figure 5

Description

  The present invention relates to a vertical continuous window PC curtain wall whose design is improved by preventing the vertical frame from being seen from the outdoor side.

  In particular, curtain wall construction methods are widely used in mid- to high-rise buildings. Various types of curtain wall construction methods have been proposed so far, but the PC curtain wall consisting of a PC plate (precast concrete plate) constituting the outer wall and a panel of glass or the like supported by the PC plate is marketed. Many have been offered.

  The PC version has a merit such that a decorative plate such as brick, tile, or main stone is integrally stretched on the outer surface and has a high degree of freedom in design of the outer wall surface, and has high strength and high fire resistance. It has heat insulation and has advantages such as low manufacturing costs, and is widely used in recent buildings.

  As an example of the PC curtain wall, the following Patent Document 1 can be cited, for example. As shown in FIG. 10, the PC curtain wall includes curtain wall units 50, 50... Having glass, and PC curtain walls 51, 51. Are fixed to the building wall, and the curtain wall units 50, 50,... Are installed in the openings surrounded by the PC curtain walls 51, 51,. The curtain wall unit 50 has a structure in which a shoji is provided in a frame body in which an upper frame 52, a lower frame 53, and left and right vertical frames 54, 55 are framed.

  In the above-mentioned PC curtain wall, a structure in which a window frame made of aluminum alloy or steel is exposed to the outside of the room has become common, but recently, due to diversification of design, the frame without exposing the window frame. There is also a tendency to prefer less.

  On the other hand, a PC curtain wall structure having no window frame is disclosed in Patent Document 2 below. In Patent Document 2, as shown in FIG. 11, a plate material fitting groove 56 for fitting an end portion of a glass plate G (plate material) and a zipper groove 58 for fitting a zipper 57 are formed in a rubber main body 59, and A zipper gasket 63 is employed in which an anchor 62 fitted into the mounting groove 61 of the concrete portion 60 is provided on the rubber body 59.

JP 2009-270251 A JP 2005-299178 A

  However, in the case of the glass support structure disclosed in Patent Document 2, the zipper gasket 63 having a large width that can be seen around the glass can be seen from the outdoor side, so that the design is poor, and the zipper gasket 63 is easily melted in the event of a fire. The fireproof specification could not be realized because it may fall. Further, there is a problem that the strength of the zipper gasket 63 may be lowered due to aging.

  Therefore, the main problem of the present invention is to realize a frameless design by using a window frame so that the vertical frame cannot be seen from the outside while satisfying various characteristics such as durability, fire resistance, and heat insulation. It is an object of the present invention to provide a vertical window PC curtain wall that is improved.

In order to solve the above-mentioned problem, as the present invention according to claim 1, a PC curtain wall unit is fixed along the vertical direction with an interval in the horizontal direction, and the vertical interval is set between adjacent PC curtain wall units. In a vertical continuous window PC curtain wall with a glass supported in each opening surrounded by an empty space between the PC curtain wall unit and the adjacent PC curtain wall,
In the PC curtain wall unit, a decorative board is stretched on the outer surface side of the concrete, and vertical frames are respectively fixed on both side surfaces of the concrete.
The vertical frame is concealed by the decorative plate extending in the direction of the opening center side of the opening forming surface of the concrete, and a front end portion is provided on the outer side of the vertical frame so as to be hooked on the edge of the decorative plate. A vertical continuous window PC curtain wall is provided in which first gaskets extending outward are continuously attached along the vertical direction.

  In the invention according to claim 1, the PC curtain wall unit has a decorative board stretched on the outer surface side of the concrete, and a vertical frame is fixed on each side surface of the concrete, and the vertical frame is an opening of the concrete. The structure is concealed by the decorative plate extending in the direction toward the center of the opening from the formation surface. Therefore, since the window frame is used, various properties such as durability, fire resistance, and heat insulation can be satisfied, and the vertical frame is concealed from the outside by the decorative board, realizing a frameless appearance visually. can do.

  Moreover, since the 1st gasket which extended the front-end | tip part to the outdoor side direction so that it may be applied to the edge of the said decorative board is attached to the outdoor side of the said vertical frame along the vertical direction, a decorative board Continuity is ensured, and rainwater and the like are prevented from entering from the gap.

As the present invention according to claim 2, the vertical frame has an upright piece extending in the direction toward the center of the opening on the outdoor side, and the tip position of the standup piece is substantially the same as the tip position of the decorative plate. Formed to be
2. The vertical window according to claim 1, wherein a predetermined gap is provided between the upright piece and the decorative plate, the gap is filled and sealed with a sealing material, and the first gasket covers the sealing material. A PC curtain wall is provided.

  In addition to the invention according to the first aspect, the invention according to the second aspect limits a suitable housing structure of the window portion. Specifically, since there is a predetermined gap between the upright piece and the decorative plate, and the gap is filled with a sealing material and sealed, it is affected by negative pressure, seismic force, thermal expansion, etc. When an external force is applied to the decorative plate from the window frame, the sealing material acts as a cushioning material to substantially eliminate or reduce the effect of the external force and prevent the decorative plate from being cracked or chipped. Furthermore, since the first gasket covers the sealing material, it is possible to prevent deterioration of the sealing material over time.

  According to a third aspect of the present invention, there is provided a vertical window PC curtain wall according to the second aspect, wherein a soft material having a high deformation performance is used as the sealing material.

  In the invention according to the third aspect, by using a soft material having high deformation performance as the sealing material, an external force acting on the decorative plate from the window frame due to the influence of negative pressure, seismic force, thermal expansion, etc. is effectively obtained. Can be absorbed.

  According to a fourth aspect of the present invention, an attachment frame for partitioning the glass fitting groove and the first gasket installation space is provided inside the vertical frame and in the vertical frame, and the partition wall of the attachment frame is the seamless frame. The first gasket installation space that is continuous along the vertical direction is formed by being the same surface as the outdoor side surface, and the gasket is continuously disposed in the first gasket installation space along the vertical direction, The vertical window PC curtain wall according to any one of claims 1 to 3, wherein a glass supporting gasket having an outdoor front end in contact with the first gasket is attached between a glass outdoor side surface and the attachment frame. Provided.

  The invention according to claim 4 shows a suitable housing structure of the gasket. In this vertical window curtain wall, since the structure is different between the invisible section and the glass installation section, the attachment frame that partitions the glass fitting groove and the first gasket installation space in the vertical frame between the invisible sections. In addition, the partition wall of the attachment frame is flush with the invisible outdoor side surface so that a first gasket installation space continuous in the vertical direction is formed. Then, a first gasket is disposed in the first gasket installation space that is continuous in the vertical direction. In the window portion, an outdoor front end portion is separately provided between the glass outdoor side surface and the attachment frame as the first gasket. A glass supporting gasket that is brought into contact is attached. Therefore, the structure is simplified by arranging two types of gaskets, a vertical through-gasket and a gasket that supports the glass, and the continuity from the glass surface to the decorative panel is ensured, and rainwater and the like enter from the gap. Will be prevented.

  As the present invention according to claim 5, an L-shaped step portion is formed on the face of the decorative plate at the front end portion of the first gasket extending in the outdoor direction, and the L-shaped step portion is A vertical continuous window PC curtain wall according to any one of claims 1 to 4, which is engaged with an edge portion of the decorative board.

  In the invention according to claim 5, an L-shaped step portion is formed on the face of the decorative plate at the front end portion of the first gasket extending in the outdoor direction, and the L-shaped step portion is formed. It is made to engage with the edge of the decorative board. Therefore, since the edge part of the decorative board and the tip part of the first gasket are in contact with each other on the two L-shaped surfaces, it is possible to more effectively prevent rainwater and the like from entering.

  According to a sixth aspect of the present invention, as the present invention, the first gasket and the glass supporting gasket are structured to be insertable between the glass and the upright piece from the outside of the glass surface. A curtain wall is provided.

  In the invention according to claim 6, the first gasket and the glass supporting gasket can be inserted between the glass and the upright piece from the outside of the glass surface. It can be easily exchanged from the outdoor side.

  As described above in detail, according to the present invention, a window frame is used to achieve various characteristics such as durability, fire resistance, heat insulation, etc. It becomes possible to improve the design.

1 is an external view of a building using a vertical window PC curtain wall according to the present invention. It is the II-II arrow directional view (cross-sectional view) of FIG. It is the III-III arrow directional view (longitudinal sectional view) of FIG. It is a longitudinal cross-sectional view of a window part. It is a cross-sectional view of a window part. It is a cross-sectional view of a waist part. It is an enlarged view of the VII part of FIG. It is a VIII-VIII arrow directional view of FIG. It is a vertical frame cross-sectional view (main part) which shows the other example of a 1st gasket. It is an external view of PC curtain wall concerning patent documents 1. It is a principal part longitudinal cross-sectional view of the zipper gasket which concerns on patent document 2. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1 to FIG. 3, PC curtain wall units 1, 1... Are fixed along the vertical direction with a space in the horizontal direction, and vertically between adjacent PC curtain wall units 1, 1. Longitudinal 5 ..., 6 ... are spanned at intervals, and glass is supported in each opening 4 surrounded by these adjacent PC curtain wall units 1, 1 and 5 ..., 6 ... It is a window PC curtain wall. In addition, as for the part of the glass G, the window part W used as the laminated glass in the vertical direction, and the waist | hip | lumbar part S by which the fireproof board 9 was arrange | positioned by the indoor side of the single layer glass G are located in a line.

  The PC curtain wall units 1 are manufactured in a factory, are carried into a building construction site, and are lined up in a vertical direction by fasteners (not shown) provided at a floor end portion of a spandrel portion (waist). Provided. The glass G is installed at the site after the PC curtain wall units 1, 1,.

  Hereinafter, further details will be described based on the drawings.

  A decorative plate 3 is stretched on the outer surface side of the concrete 2 of the PC curtain wall units 1,..., And vertical frames 7 and 8 are fixed on the left and right side surfaces of the concrete 2. Concrete 2 (hereinafter also referred to as PC plate) used in the PC curtain wall unit 1 is made of highly fluid concrete so that it can be filled without separating the aggregate to every corner of the formwork. It is desirable that the concrete 2 has a compressive strength (design standard strength) of about 50 N / mm 2. As the decorative plate 3 on the outer surface side, it is possible to use a stone or a tile, but in the PC curtain wall unit 1, a stone is stretched on the surface of the PC plate 2. The thickness of the main stone is about 20 to 40 mm.

  As shown in FIG. 5, the vertical frame 7 has a stepped portion 7 b on the indoor side of the flat plate portion 7 a, and extends from the indoor side end of the stepped portion 7 b to the back surface side. It is fixed to the side surface of the PC plate 2 by the embedded first anchor fin 7c and the second anchor fin 7d embedded in the PC plate 2 in the middle of the back surface within the expected width. On the inner surface side, there is a standing piece 7e that also serves as a gasket holding at the outdoor side end portion, and extends in the direction toward the center of the opening, and a locking piece 7f at a position closer to the indoor side. The vertical pressing edge 10 is attached to the corner of the stepped portion 7b. The anchor fins 7c and 7d may be provided over the entire length of the member or may be partial. Furthermore, it may be provided intermittently.

  Further, a locking piece 7g is provided near the base end of the upright piece 7e, and the attachment frame 12 is attached to this. The attachment frame 12 is a member composed of a partition wall 12a, a locking piece 12b, a fixing piece 12c, and a gasket holding portion 12d. The locking piece 12b is engaged with the locking piece 7g of the upright piece 7e. In the stopped state, it is fixed by driving a screw into the fixing piece 12c. The gasket holding portion 12d is a member that holds a glass supporting gasket 17 described later.

  The attachment frame 12 is provided to partition the glass fitting groove M and the first gasket installation space q in the vertical frame 7 between the seamless 5 and 6, and the partition wall 12 a The first gasket installation space q that is continuous along the vertical direction is formed by being flush with the outdoor side surfaces of the innocents 5 and 6, and the first gasket installation space q is continuously formed along the vertical direction. 1 gasket 13 is arranged.

  The vertical frame 7 is fixed on the concrete 2 side and is concealed by the decorative plate 3 extending in the opening center side direction from the opening forming surface of the concrete 2, and the first gasket 13 is the decorative plate The tip is extended in the outdoor direction so as to hang on the edge of 3.

  Specifically, the vertical frame 7 is fixed to the concrete 2 side avoiding the decorative plate 3, and the decorative plate 3 extends toward the opening center side of the opening portion of the concrete 2, and the front end of the decorative plate 3 The position is almost the same as the position of the tip of the upright piece 7e of the vertical frame 7. The front end position of the decorative plate 3 may be on the near side as long as it is slightly smaller than the front end position of the upright piece 7e, but is preferably the same position or slightly toward the opening side of the front end position of the upright piece 7e. Make sure it is protruding. A gap 14 having a predetermined width is provided between the standing piece 7e and the decorative plate 3, and the gap 14 is filled with a backup material 15 and a sealing material 16 and sealed. That is, the vertical frame 7 is arranged without contacting the decorative plate 3, a gap 14 is formed between them, and the gap 14 is filled with the sealing material 16, so that negative pressure, seismic force, thermal expansion, etc. When an external force acts on the decorative plate 3 side from the vertical frame 7 due to the influence of the above, the sealing material 16 acts as a cushioning material to reduce or prevent the external force from acting, and the decorative plate 3 is cracked or chipped. To prevent it. As the sealing material 16, it is desirable to use a soft material having a high deformation performance so that the function as a buffer material is effectively exhibited. As such a sealing material, polysulfide type or urethane type is desirable.

  As shown in FIG. 5, the first gasket 13 is a member having a substantially L-shaped cross section, one side is a mounting portion 13a, and the other side extends in the outdoor direction, and the sealing material The frame portion 13 b covers 16. The front end of the frame portion 13 b is hung on the edge portion of the decorative plate 3. In the illustrated example, an L-shaped step portion 13 c is formed on the face of the decorative plate 3 at the front end portion of the frame portion 13 b, and the L-shaped step portion 13 c is engaged with the edge portion of the decorative plate 3. I try to let them.

  On the other hand, the vertical frame 8 is symmetrical to the vertical frame 7 described above. As shown in FIG. 5, the flat plate portion 8 a has a stepped portion 8 b on the indoor side, and extends from the indoor side end of the stepped portion 8 b to the back side, and is embedded in the PC plate 2. It is fixed to the side surface of the PC plate 2 by the fin 8c and the second anchor fin 8d embedded in the PC plate 2 in the middle of the back surface within the expected width. On the inner surface side, there is a standing piece 8e that also serves as a gasket holding at the outdoor side end portion, and extends toward the center of the opening, and a locking piece 8f at a position closer to the indoor side. Utilizing this, the vertical pressing edges 11 are attached to the corners of the stepped portion 8b. Since the other structure is the same as that of the vertical frame 7 side, the same reference numerals are given and description thereof is omitted.

  The vertical frames 7 and 8 are continuously fixed along the longitudinal direction of the PC curtain wall unit 1, but as shown in FIG. The refractory board 9 is attached to each other, and only the vertical pressing edges 18 and 19 are different. In this waist part S, the arm pieces 18a and 19a are extended from the main body of the ledge toward the outdoor side by the amount corresponding to the single-layer glass G, and the solid beads 20 are held at the tips of the arm pieces 18a and 19a. It comes to support. Other structures are the same as those in the cross-sectional view of the window portion in FIG.

As shown in FIG. 4, the blank 5 is located on the upper side of the window W, and has a glass fitting groove M ₁ for fitting the single-layer glass G of the waist S on the upper surface side, and on the lower surface side. a member having a fitting groove M ₂ for fitting the double glazing G of the window W. The seamless 5 is a member in which the indoor seamless 5A and the outdoor seamless 5B are connected by resins 24 and 24 to ensure heat insulation. The indoor side of the glass fitting groove M ₁ on the upper side by a transom 5A and the outdoor-side transom 5B is formed, the glass fitting groove M ₂ is formed on the lower surface side. Gasket holding portions 5a and 5b are provided on the upper and lower sides of the outdoor side seamless 5B, and a seamless cover 25 is attached to the outdoor side surface. Further, the bead support portions 5c are provided in the glass fitting groove M ₁ of the indoor side transom 5A, the glass fitting groove M ₂ is provided a seal receiving piece 5d, refractory board receiver 27 on the rear side It is attached.

On the other hand, as shown in FIG. 4, the mesh 6 has a fitting groove M < _b > ₂ that is located on the lower side of the window portion W and that fits the multilayer glass G of the window portion W on the upper surface side. a member having a glass fitting groove M ₁ for fitting a single-layer glass G waist S on the lower surface side. The intangible 6 is also a member in which the indoor side seamless 6A and the outdoor side seamless 6B are connected by the resins 24 and 24 in order to ensure heat insulation. The indoor side of the glass fitting groove M ₂ on the upper side by a transom 6A and the outdoor-side transom 6B is formed, the glass fitting groove M ₁ is formed on the lower surface side. Gasket holding portions 6a and 6b are provided on the upper and lower portions of the outdoor side seamless 6B, and a seamless cover 25 is attached to the outdoor side surface. Further, the bead supporting portion 6c is provided in the glass fitting groove M ₁ of the indoor side transom 6A, the seal receiving piece 6d provided in the glass fitting groove M _1, refractory board retainer 28 on the rear side It is attached.

  As shown in FIGS. 7 and 8, the blinds 5, 6 are arranged at the positions closer to the indoor side of the vertical frames 7, 8 so that the end portions are swallowed into the vertical frames 7, 8. It is supported by seamless brackets 29 and 29 fixed to the frames 7 and 8. The gap between the end portions of the invisible members 5 and 6 and the vertical frames 7 and 8 is sealed off by the backup material 30 and the sealing material 31. As can be seen from FIG. 8, a first gasket space q in which the first gasket 13 is installed is provided between the outdoor side surfaces of the seamless 5 and 6 and the upright pieces 7 e (8 e) of the vertical frames 7 and 8. The first gasket 13 formed in the window W is continuously arranged in the longitudinal direction through the longitudinal direction without being interrupted by the seamless portions 5 and 6.

  As described above, in the glass G, the multi-layer glass is fitted and supported in the window portion S, and the single-layer glass is fitted and supported in the waist portion S.

  In the window portion W, the glass G is disposed on the upper and lower portions of the glass interior side surface between the seal holder 5d of the innocent 5 and the seal receiver 6d of the innocent 6 as shown in FIG. It is sandwiched between the backup material 32 and the sealing material 33 and the glass support gasket 34 arranged between the seamless gasket holding portion 5b and the seamless gasket holding portion 6a on the outer surface of the glass chamber. It is supported. The glass holding gasket 34 is a member having a substantially L-shaped cross section, one side in the outdoor direction is a mounting portion 34a, and the other side is a pressure contact piece 34b that presses against the glass surface.

  Further, on both sides of the glass G, as shown in FIG. 5, the backup material 32 and the sealing material arranged between the vertical pressing edges 10 and 11 attached to the vertical frames 7 and 8 on the side surface of the glass interior. 33 and a glass supporting gasket 17 disposed between the outer surface of the glass chamber and the gasket holding portion 12d of the attachment frame 12 so as to be sandwiched therebetween. The glass supporting gasket 17 is also a member having a substantially L-shaped cross section. One side in the outdoor direction is a mounting part 17a, and the other side is a pressing part 17b that presses against the glass surface. The outdoor front end portion is in contact with the first gasket 13 so that continuity with the first gasket 13 is ensured.

  On the other hand, in the waist part S, as shown in FIG. 5, the waist part S is disposed between the bead support part 5 c of the eyeless 5 and the bead support part 6 c of the eyeless 6 on the side of the glass interior. The solid bead 20 and the glass support gasket 34 disposed between the outer surface of the glass chamber and the gasket holding portion 5a of the seamless 5 and the gasket holding portion 6b of the seamless 6 are supported. ing.

  Further, as shown in FIG. 6, on both sides of the glass G, the solid bead 20 disposed between the vertical pressing edges 18 and 19 on the glass chamber inner surface, and the attachment frame 12 on the glass chamber outer surface. It is supported so as to be sandwiched by the glass supporting gasket 17 disposed between the gasket holding portion 12d. Again, the outdoor tip of the mounting portion 17a of the glass supporting gasket 17 is in contact with the first gasket 13, so that continuity with the first gasket 13 is ensured. It has become.

[Other examples]
(1) In the above-described embodiment, the first gasket 13 needs to be attached before the attachment frame 12. When replacement is necessary due to aging, the first gasket 13 cannot be replaced unless the glass G is removed. However, a structure that can be inserted between the upright piece 7e (8e) of the vertical frame 7 (8) and the attachment frame 12 from the outdoor side of the glass surface is also possible. Specifically, as shown in FIG. 9 (only the vertical frame 7 is shown), an L-shaped piece 7h having an opening in the glass surface direction is formed on the standing piece 7e of the vertical frame 7, and a glass supporting gasket is formed. 35 includes a first insertion portion 35a inserted between the L-shaped piece 7h and the glass surface, and a second insertion 35b inserted into the L-shaped piece 7h. It can be installed by pushing in from the outside of the glass surface. For the frame portion 35c extending in the outdoor direction, an L-shaped step portion 35d is formed on the front face of the decorative plate 3 and the L-shaped step portion 35d is connected to the edge portion of the decorative plate 3. Try to match.

  DESCRIPTION OF SYMBOLS 1 ... PC curtain wall unit, 2 ... Concrete, 3 ... Decorative plate, 4 ... Opening, 5/6 ... Nothing, 5A, 6A ... Indoor side, Nothing, 5B, 6B ... Outdoor outside, Noness, 7, 8 ... Vertical frame, 10 · 11 · 18 · 19 ··· Vertical tread, 12 ··· Attachment frame, ································································································· 16, 31, 33 ... Sealing material

Claims (6)

A PC curtain wall unit is fixed in the vertical direction with a space in the horizontal direction, and the PC curtain wall unit is installed between the adjacent PC curtain wall units with a space in the vertical direction. In the vertical window PC curtain wall in which the glass is supported in each opening surrounded by the eyes,
In the PC curtain wall unit, a decorative board is stretched on the outer surface side of the concrete, and vertical frames are respectively fixed on both side surfaces of the concrete.
The vertical frame is concealed by the decorative plate extending in the direction of the opening center side of the opening forming surface of the concrete, and a front end portion is provided on the outer side of the vertical frame so as to be hooked on the edge of the decorative plate. A vertical continuous window PC curtain wall, wherein the first gasket extended in the outer direction is continuously attached along the vertical direction. The vertical frame has an upright piece extending in the direction toward the center of the opening on the outdoor side, and the tip position of the standup piece is formed so as to be substantially the same as the tip position of the decorative plate,
2. The vertical window according to claim 1, wherein a predetermined gap is provided between the upright piece and the decorative plate, the gap is filled and sealed with a sealing material, and the first gasket covers the sealing material. PC curtain wall.   3. The vertical window PC curtain wall according to claim 2, wherein a soft material having a high deformation performance is used as the sealing material.   An attachment frame for partitioning the glass fitting groove and the first gasket installation space is provided in the vertical frame inside the seamless frame, and a partition wall of the attachment frame is flush with the unseen outdoor side surface. Accordingly, a first gasket installation space that is continuous along the vertical direction is formed, and the first gasket is continuously disposed along the vertical direction in the first gasket installation space, and the glass chamber outer side surface and the attachment frame A vertical window PC curtain wall according to any one of claims 1 to 3, further comprising a glass supporting gasket having an outdoor front end in contact with the first gasket.   An L-shaped step is formed on the face of the decorative plate at the front end portion of the first gasket extending in the outdoor direction, and the L-shaped step is engaged with the edge of the decorative plate. The vertical window PC curtain wall according to any one of claims 1 to 4.   5. The vertical window PC curtain wall according to claim 4, wherein the first gasket and the glass supporting gasket are configured to be insertable between glass and the upright piece from the outside of the glass surface.

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