JP2004068463A - Transom connecting section structure in curtain wall and its construction method and transom joint material for it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the joint width of a transom connecting section while easily absorbing displacement due to a temperature difference and displacement in the case of an earthquake, and to simplify the execution of works of the connecting section while maintaining watertightness for a prolonged term without generating a crack. <P>SOLUTION: In a curtain wall CW, at least the transoms 1 and 1 or the like are exposed on an outdoor surface while glass G is installed using the transoms 1 and 1 as upper-lower frames. Transom fixing sections 20B to each transom 1 are mounted on both sides between the adjacent transoms in the horizontal direction while glass housings 20A are set up to upper and lower sections, respectively, and transom joint materials 20 with bellows-shaped extensible sections 20C are interposed between the transom fixing sections 20B, 20B. In the execution of works, the transom joint materials are fixed previously on one end sides of the transoms 1, the transoms 1 are assembled and the other end sides of the transoms 1 are connected to the transom joint materials 20 when the adjacent transoms in the horizontal direction are assembled. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention particularly relates to a seamless connection structure applied to a laterally enhanced curtain wall emphasizing a horizontal line due to a blind eye, a construction method thereof, and a seamless joint material therefor.
[0002]
[Prior art]
In recent years, with the diversification of curtain wall styles, the horizontal emphasis type curtain wall, in which the horizontal blindness is remarkably exposed, while the horizontal width is relatively emphasized by reducing the vertical width and making it inconspicuous Has been proposed.
[0003]
In the seamless connection portion of the laterally-enhanced curtain wall, in order to have a structure capable of absorbing interlayer displacement during an earthquake in addition to expansion and contraction displacement due to thermal expansion, a gap is provided between horizontally adjacent seamless end faces. At the same time, a structure for filling the gap with a deformable irregular sealing material, that is, a so-called on-site seal joint method (wet method) is exclusively employed.
[0004]
[Problems to be solved by the invention]
However, in the case of the horizontal emphasis type curtain wall, the blindness is inevitably a relatively long material depending on the design intention. Therefore, when the above-mentioned in-situ seal joint method is employed in the seamless joint portion, there is a problem that the required joint width becomes very large. If the blind length is 7 m depending on the structure type, the joint width of about 50 mm will be required due to the displacement at the time of the earthquake and the thermal expansion displacement, and the seamless continuity is lost in appearance. At the same time, such large seal joints were virtually impossible to construct.
[0005]
In the case of the on-site seal joint method, even if the joint width is small, it takes time and labor to construct, and cracks are easily generated due to displacement during earthquake and displacement due to thermal expansion, and watertightness is long-term. There were also problems such as difficulty in securing.
[0006]
Further, conventionally, the displacement acting on the outer wall during an earthquake has been tried to be absorbed by providing an expansion joint hardware separate from the curtain wall. Therefore, there is a problem that the integrity of the external design is lost.
[0007]
Therefore, the main problem of the present invention is to reduce the joint width of the seamless connection part, easily absorb the temperature difference displacement and the displacement at the time of the earthquake, and simplify the construction of the connection part, and the crack is not generated for a long time. It is an object of the present invention to provide a seamless joint structure capable of maintaining watertightness, a construction method therefor, and a seamless joint material therefor.
[0008]
[Means for Solving the Problems]
As the present invention according to claim 1 to solve the above-described problem, at least an eye-opening is exposed on an outdoor surface, and in a curtain wall in which a curtain wall panel is attached with the eye-opening as an upper and lower frame,
Between the blinds adjacent in the horizontal direction, both sides have blinds fixing parts for left and right blinds, and each has a curtain wall panel accommodating part at the top and bottom, and expands and contracts between the blinds There is provided a seamless connection structure in a curtain wall, wherein a seamless joint material having a free part is interposed.
[0009]
In the first aspect of the present invention, the blind joint material having the above structural conditions is interposed between the blind holes to form the blind connection portion. Therefore, since the stretchable portion is provided, even if the blindness is long, it is possible to easily cope with both the displacement and thermal expansion during the blindless earthquake, and finish the curtain wall using only the stretchable portion as the joint. Therefore, the joint width between the joints can be reduced. In addition, since the seamless joint material has a fixing portion to the blind, and has a receiving groove of a panel such as glass on the upper and lower portions, it can be easily fixed between the blinds, and the panel can be attached without any trouble. become. Further, since the structure is configured to absorb the displacement by the stretchable portion, cracks are not generated unlike the conventional irregular-shaped seal, and the watertightness can be maintained for a long time. Furthermore, it is hard to receive aging and can greatly contribute to maintenance free.
[0010]
According to a second aspect of the present invention, there is provided a construction method for a seamless connection structure in a curtain wall according to the first aspect,
The blind joint material is fixed to one end side of the blind in advance, and after assembling the blind, when assembling the blind adjacent in the left-right direction, the other end of the blind joint is the blind joint material. And a method for constructing a seamless connection in a curtain wall. By installing a blind joint material at one end of the blind eye before the blind eye erection, and taking a procedure of connecting the blind eye joint material at the time of the adjacent eyeless erection, construction work can be simplified. Become like
[0011]
Further, as the present invention according to claim 3, it has a blind fixing portion on each side portion, a curtain wall panel accommodating portion on each of the upper and lower portions, and a stretchable portion between the blind fixing portions. A seamless joint material is provided.
[0012]
According to a fourth aspect of the present invention, there is provided the seamless joint material according to the third aspect, wherein the seamless joint material is made of a rubber-based material. Examples of the rubber-based material include rubber-based materials such as silicone rubber, chloroprene rubber, ethylene propylene rubber, acrylic rubber, and styrene-butadiene rubber. Among them, silicone rubber having high weather resistance is most desirable.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
[Curtain wall structure]
FIG. 1 is a perspective view of a main part of a curtain wall adopting the seamless connection structure according to the present invention, FIG. 2 is a view taken along line II-II of FIG. 1, and FIG. 3 is a view taken along line III-III of FIG. It is.
[0015]
As shown in FIG. 1, in the present curtain wall structure CW, the horizontally arranged blinds 1, 1... Are remarkably exposed, while the widths of the vertical cubicles 2, 2,. As a result, a horizontal emphasis type curtain wall in which the horizontal lines are relatively emphasized is obtained.
[0016]
In the present curtain wall CW structure, as shown in FIGS. 2 and 3, horizontal brackets 3B, 3B... Are provided at appropriate intervals along the height direction on the outdoor surface of the structural support 3, specifically, the column 3A. Are supported by the horizontal brackets 3B, 3B..., And the cubicles 2, 2. The glass G (panel) is fitted to and supported by each of the opening frames formed by the first and second cubes 2 and 2.
[0017]
Hereinafter, further detailed description based on FIG. 4 and FIG.
A blind support bolt 4 is supported at the tip of the horizontal bracket 3B, and a blind indoor side joint sleeve 5 is supported by the blind support bolt 4. As shown in FIG. 4, the blind indoor side joint sleeve 5 has a substantially hollow trapezoidal cross section in accordance with the blind indoor indoor hollow shape, and the blind support bolt 4 penetrates a partition wall 5a. At the same time, a spherical washer 6 and a fastening nut 7 are provided on both sides straddling the partition 5a, and the blind supporting bolt 4 supports the blind indoor-side joint sleeve 5. Then, the blinds 1, 1 are supported by fitting the blinds 1, 1 on both sides of the blind joints 5, respectively.
[0018]
As shown in FIG. 4, the blind 1 has a glass support portion 1A having an H-shaped cross section, a rectangular hollow portion 1B adjacent to the glass support portion 1A on the indoor side, and a glass support portion 1A on the outside of the glass support portion 1A. It is an extruded aluminum bar having a cross-sectional shape including an outdoor hollow portion 1C having a triangular cross section which is adjacent to and protrudes to the outdoor side to emphasize a horizontal line, and an indoor hollow portion 1D adjacent to the rectangular hollow portion 1B. At the seamless connection portion adjacent in the horizontal direction, together with the blind joint portion 5 inserted between the indoor hollow portions 1D, the blind joint outside between the outdoor hollow portions 1C is also provided. The joint sleeve 8 is inserted. These two joint sleeves 5 and 8 are fixed to the blind 1 on one side by screws 9.
[0019]
A vertically arranged ridge 2 is fixed to a predetermined portion of the blind 1, specifically, a blind connection portion and an intermediate portion thereof, so as to connect the upper and lower blinds 1 and 1. As shown in FIGS. 4 and 5, the cubic 2 is provided with cubic brackets 10 each having an L-shaped cross section on the upper surface side and the lower surface side of the seamless rectangular hollow portion 1 </ b> B, respectively. The cubic brackets 10 and 10 are fixed by nut members 13 and 13 screwed to self-weight receiving bolts 11 disposed longitudinally through the portion 1B in a longitudinal direction. And is fixed by bolts 12. A cover member 17 having a trapezoidal cross section is attached to the indoor side of the cubic 2, and a vertical ridge 14 is attached to the outdoor side. The self-weight receiving bolt 11 is a member that is disposed over the entire height of the curtain wall structure CW and is suspended by a structural support such as a frame.
[0020]
On the other hand, the glass G has a circumferential direction defined by upper and lower fitting grooves formed by the upper and lower fitting portions of the glass support portion 1 </ b> A having the H-shaped cross-section of the blind 1 and the right and left ridges 14 and the vertical pressing edge 14. And is supported by a back-up material 15 and a sealing material 16 which are respectively constructed on the indoor side peripheral portion and the outdoor side peripheral portion.
[0021]
[Connection structure of seamless 1,1]
As shown in FIG. 6 to FIG. 8, in the connection portion (joint portion) of the seamless 1 and 1, the seamless 1 according to the present invention is compared with the glass supporting portion 1A having the H-shaped cross section. The joint member 20 is interposed. As shown in detail in FIG. 9, the seamless joint member 20 has a substantially H-shape when viewed from the front (FIG. 9C) and a square shape when viewed from the side and in a plan view. And is preferably made of a rubber-based material such as silicone rubber, chloroprene rubber, ethylene propylene rubber, acrylic rubber, and styrene-butadiene rubber. Among these rubber-based materials, those made of the above-mentioned silicone rubber are most desirable in terms of high weather resistance. The material of the seamless joint material 20 does not exclude, for example, a plastic material other than the rubber-based material. In some cases, a later-described extensible portion 20C is made of the rubber-based material, and other parts are used. A composite material made of a plastic material can also be used.
[0022]
The seamless joint member 20 has the upper groove 20a and the lower groove 20b having the H-shaped cross section as glass accommodating grooves 20A (panel accommodating portions), and has fixing portions 20B for the blind 1 on both sides, respectively. Further, it is a member having a bellows-like elastic portion 20C between the blind fixing portions 20B. The blind fixing portion 20B is a horizontal partition wall 20c formed at an intermediate position in the vertical direction, and has rivet holes 20d, 20d for fixing to the horizontal flange 1a of the blind 1. The extendable portion 20C has three surfaces, a vertical bellows portion 20e, 20e formed on the side wall and a horizontal bellows portion 20f formed between the horizontal partition walls 20c, and these three surfaces are continuous in the circumferential direction. By doing so, the watertightness is ensured, and the expandable and contractible portion 20C substantially functions as a sealing portion that seals the joint portion between the seamless lines 1 and 1.
[0023]
At the time of mounting the seamless joint member 20, before erection of the seamless member 1, notches 1 b, so that legs of the seamless joint member 20 can be inserted into both sides of the horizontal flange portion 1 a of the glass support portion 1 </ b> A, respectively. 1b is formed so that the blind fixing portion 20B can be inserted from the blind end face.
[0024]
Before the installation of the blind 1, the blind joint material 20 is inserted into one end of the blind 1 in advance, and in the blind fixing portion 20B, on the upper surface side of the horizontal partition wall 20c and the back surface of the horizontal flange 1a. Each metal fixing plate 21 having a U-shaped cross section is fixed by rivets 22 in a state where the metal pressing plate 21 is applied. Then, after assembling the blinds into the curtain wall, when assembling the blinds 1 adjacent in the left-right direction into the curtain wall, the other end side of the blinds 1 is fixed to the blind joint material 20 by the same fixing method. . Thereafter, at both ends of the seamless joint material 20, seals 23 are applied to the boundary portions with the seamless 1. In addition, about one side of the said seal | sticker 23, you may make it perform at the time of the attachment of the seamless joint material 20 before assembling the blinds 1 to a curtain wall.
[0025]
By the way, the present invention, besides the horizontal emphasizing type curtain wall structure shown in the present embodiment, while remarkably exposing the blindness of the horizontal arrangement, makes the vertical sill a back mullion to make it less noticeable, Can be similarly applied to a horizontal emphasizing type curtain wall in which only a seal filled between glass is substantially used. Further, the present invention is most suitably applied to a horizontal emphasis type curtain wall, but can also be applied to other curtain wall types such as a vertical emphasis type curtain wall and a vertical / horizontal emphasis type curtain wall. .
[0026]
【The invention's effect】
As described in detail above, according to the present invention, since the blind joint material of the predetermined structural condition is interposed between the blinds adjacent in the horizontal direction, the expansion function at the time of the earthquake (stretching function) is provided in the blind joint. , And can easily absorb temperature difference displacement and earthquake displacement.
[0027]
In addition, the joint width of the seamless joint can be reduced because of the expansion and contraction function, and the construction of the seamless joint can be greatly simplified because it is only necessary to attach the solid joint material with rivets between the joints. Become. Furthermore, unlike conventional amorphous seals, there is no occurrence of cracks and it is hard to receive aging, so that watertightness can be maintained for a long time.
[Brief description of the drawings]
FIG. 1 is a main part view of a curtain wall employing a seamless connection structure according to the present invention.
FIG. 2 is a view taken along line II-II in FIG.
FIG. 3 is a view taken along line III-III in FIG. 1;
FIG. 4 is a vertical cross-sectional view of a blind support portion.
FIG. 5 is a cross-sectional view of the blind support portion.
FIG. 6 is a longitudinal sectional view (a view taken along the line VI-VI in FIG. 7) of the blind joint portion showing an arrangement state of the blind joint member 20;
FIG. 7 is a longitudinal sectional view (a view taken along line VII-VII in FIG. 6) of the blind joint portion showing an arrangement state of the blind joint member 20;
FIG. 8 is a cross-sectional view (a view taken along line VIII-VIII in FIG. 6) of a blind joint portion showing an arrangement state of the blind joint member 20;
9 (A) is a plan view, FIG. 9 (B) is a side view, and FIG. 9 (C) is a front view showing the seamless joint member 20.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... blind, 1A ... glass support part, 1B ... square hollow part, 1C ... outdoor hollow part, 1D ... indoor hollow part, 2 ... square, 3 ... structural support, 3A ... cylinder, 3B ... horizontal bracket , 4 seamless blind bolts, 5 blind indoor joint sleeve, 6 spherical washer, 7 fastening nut, 8 blind seamless outer joint sleeve, 10 cubic bracket, 20 blind joint material, 20A ... Glass accommodation groove, 20B ... Eyeless fixing part, 20C ... Expandable part, 21 ... Metal holding plate, 22 ... Rivet

Claims (4)

At least the blinds are exposed on the outdoor surface, and in a curtain wall in which a blind wall panel is attached with the blinds as upper and lower frames,
Between the blinds adjacent in the horizontal direction, both sides have blinds fixing parts for left and right blinds, and each has a curtain wall panel accommodating part at the top and bottom, and expands and contracts between the blinds A seamless connection structure in a curtain wall, wherein a seamless joint material having a free part is interposed. A construction method for a seamless connection structure in a curtain wall according to claim 1,
The blind joint material is fixed to one end side of the blind in advance, and after assembling the blind, when assembling the blind adjacent in the left-right direction, the other end of the blind joint is the blind joint material. And a method for constructing a blind joint in a curtain wall. A blind joint material having a blind fixing portion on both sides, a curtain wall panel accommodating portion on each of upper and lower portions, and a stretchable portion between the blind fixing portions. The seamless joint material according to claim 3, wherein the seamless joint material is made of a rubber-based material.

Images