JP3989336B2 - curtain wall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The curtain wall which concerns on this invention is related with the structure of the curtain wall which comprises the outer wall surface of a steel structure building.
[0002]
[Structure to which the present invention is applied]
When building a steel structure, after assembling the steel frame (frame), a plurality of curtain walls made in advance at the factory are attached to the outside of the steel frame to adjust the appearance. With respect to the design of the outer wall surface of a building composed of such curtain walls, the requirements of the building owner are diversified. For example, as shown in FIGS. 1 to 8 showing an example of an embodiment of the present invention, long rectangular stone panels 1 and 1 that are long in the vertical direction are arranged in two rows in the horizontal direction, and are further arranged in the vertical direction. It can be considered that the first portions 2 and 2 look like pillars continuous in the vertical direction, and the second portions 4 and 4 including the glass windows 3 and 3 between the first portions 2 and 2 adjacent in the horizontal direction. ing. The outer wall surface in which the first portions 2 and 2 and the second portions 4 and 4 are alternately arranged in the horizontal direction has first to third types of curtains each having a height dimension of one floor. The walls 5 to 7 are configured by combining them in order in the vertical direction.
[0003]
Each of the second portions 4 and 4 includes the first light shielding portions 8 and 8 whose surfaces are covered with the same stone material as that of the stone panels 1 and 1 in addition to the glass windows 3 and 3, respectively. The second light-shielding portions 9 and 9 whose surfaces are covered with an opaque decorative glass panel 10 such as a mirror glass, which is the decorative panel described in the claims, are provided. Among these, each 1st light-shielding part 8 and 8 consists of the main part 11 which comprises an up-down direction intermediate | middle part thru | or a lower end part, and the subpart 12 which comprises an upper end part. Of these, the main portion 11 is provided at the upper end portion of the first curtain wall 5, and the sub portion 12 is provided at the lower end portion of the third curtain wall 7. Then, with the third curtain wall 7 disposed above the first curtain wall 5, the main part 11 and the sub part 12 are overlapped in the vertical direction, and the first light shielding parts 8, 8. Configure.
[0004]
On the other hand, each said 2nd light-shielding part 9 and 9 is the concrete (precast reinforced concrete) which exists in the upper end part of both these curtain walls 6 and 7 in the upper end part of the 2nd curtain wall 6 and the said 3rd curtain wall 7. ) To cover the outdoor side of the part. The glass windows 3 and 3 are incorporated in the middle part to the lower end part of the first and second curtain walls 5 and 6 and in the middle part of the third curtain wall 7, respectively. Each of the glass windows 3 and 3 has four sides of a multi-layered daylighting glass panel 13, which is a daylighting panel described in the claims, respectively, an upper frame 14, a lower frame 15, and left and right eaves frames 16,16. The window frame 17 is fixed to the curtain walls 5 to 7. Of these curtain walls 5 to 7, the portions excluding the glass windows 3 and 3, that is, the first portions 2 and 2 covered by the stone panels 1 and 1, and the first and second portions, respectively. The back side portions of the first and second light shielding portions 8 and 9 of the two portions 4 and 4 are made of concrete. In other words, the first portions 2 and 2 and the first and second light-shielding portions 8 and 9 are formed by covering the outdoor side surface of the concrete with the stone panel 1 or the decorative glass panel 10.
[0005]
[Problems to be solved by the invention]
Of the first to third curtain walls 5 to 7 described above, the second and third curtain walls 6 and 7 are each provided with a decorative glass panel 10 above the glass window 3 to provide a second light shielding portion. Nine. The outdoor side surface of the daylighting glass panel 13 and the outdoor side surface of the decorative glass panel 10 constituting the glass window 3 are positioned on the same plane so as to adjust the appearance of the building.
[0006]
In general, as a structure in which the outdoor side surface of the daylighting glass panel 13 and the outdoor side surface of the decorative glass panel 10 are positioned on the same plane, a pair of left and right provided on the window frame 17 constituting the glass window 3 is generally used. It is conceivable that the frame frames 16 and 16 are extended above the glass window 3. However, when such a structure is adopted, the length of each of the frame frames 16 and 16 increases, and the manufacturing cost of the second and third curtain walls 6 and 7 increases.
In view of such circumstances, the curtain wall of the present invention has been invented in order to realize a structure in which the length of each of the frame frames 16 and 16 is short and the manufacturing cost can be reduced.
[0007]
[Means for Solving the Problems]
The curtain wall of the present invention includes a concrete main body, a quadrangular daylighting panel which is surrounded by at least three sides by the main body and constitutes a glass window, a window frame for supporting the daylighting panel, and a decorative panel With.
The main body includes a base portion and a pair of side portions bent at right angles from both ends of the base portion in the same direction.
The daylighting panel is supported by the window frame supported by the both side portions and the base portion.
Further, the decorative panel includes a pair of opposed recessed portions recessed inwardly provided in a portion corresponding to an extension line of the inner side surface of the both side portions at a horizontal intermediate portion of the outdoor side surface of the base portion. The outdoor side surface of the base portion is covered in a state where both side edges are supported by a concave groove portion directly formed on the inner side surface without passing through the window frame .
[0008]
[Action]
The curtain wall of the present invention configured as described above is used for decoration by a concave groove portion directly formed without a window frame on a pair of opposed inner surfaces of the concave portion provided in the base portion constituting the main body. Since both side edges of the panel are supported, there is no need to provide a heel frame on both sides of the decorative panel. It is only necessary to provide this frame on both sides of the glass window. Therefore, the overall length of the frame can be shortened, and the production cost of the curtain wall can be reduced accordingly.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An example of an embodiment of the present invention will be described with reference to FIGS. Since the outer wall surface of the steel structure is constituted by the first to third curtain walls 5 to 7 as described above, the following description will focus on the parts that have not been described previously. First, the structure of the second curtain wall 6 which is the object of the present invention will be described with reference to FIGS. 4, 6, 7 and FIGS. 14 to 18, and the structure of the third curtain wall 7 will be described with reference to FIGS. To do.
[0010]
First, as shown in FIGS. 4, 6, 7 and FIGS. 14 to 18, the second curtain wall 6 is made of precast concrete, and the shape viewed from the outdoor side and the indoor side is a “U” shape (opened at the bottom). A main body 18a. The main body 18a includes a base portion 19a provided at an upper end portion, and a pair of side portions 20a and 20a bent at right angles downward from both ends of the base portion 19a. The lighting glass panel 13 is fixed to the main body 18a so as to surround three sides of the lighting glass panel 13. That is, the upper frame 14 that supports the upper side of the daylighting glass panel 13 is embedded and fixed to the lower surface of the base portion 19a, and the eaves frames 16 and 16 that also support the left and right sides are the inner surfaces of the side portions 20a and 20a. The lower frame 15 is embedded between the lower ends of the two frame frames 16 and 16 so as to be embedded and fixed to the lower frame.
[0011]
Further, in the case of the second curtain wall 6, in the indoor side portion of the lower frame 15 that supports the lower side of the daylighting glass panel 13, between the lower ends of the pair of side portions 20a, 20a, The reinforcing frame member 21 is stretched over. The reinforcing frame member 21 is a square pipe made of, for example, steel or stainless steel and having a side of about 15 cm. In such a reinforcing frame member 21, both end portions in the length direction are coupled and fixed to the inner surfaces of the lower end chambers of the respective side portions 20a and 20a via fixing brackets 22 and 22, respectively. Further, the plurality of intermediate portions of the reinforcing frame member 21 and the plurality of intermediate portions of the lower frame 15 are connected and fixed by connecting brackets 23 (see FIG. 4). With such a configuration, the lower end portions of the side portions 20a and 20a, each of which is a free end, are connected to each other to ensure the strength of the side portions 20a and 20a, and an extruded aluminum alloy material having low strength. The lower frame 15 made of steel is reinforced. Accordingly, the side walls 20a and 20a and the lower frame 15 are assembled between the time when the second curtain wall 6 is assembled at the factory, transported to the construction site, and further lifted by a crane and assembled to the outer wall surface of the steel structure. Can be hard to damage. Further, even when a large force is applied to the lower ends of the side portions 20a and 20a due to an earthquake or the like after the assembly, the side portions 20a and 20a and the lower frame 15 can be prevented from being damaged.
[0012]
In the case of the second curtain wall 6, the entire horizontal intermediate portion on the outdoor side surface of the base portion 19a is a recessed portion 24a that is recessed indoors. Then, guide rails 25, 25 that extend from the upper end surface to the lower end surface of the second curtain wall 6 are fixed in the vertical direction of the pair of inner surfaces facing each other of the side portions 20a, 20a and the recessed portion 24a, respectively . ing. Each of these guide rails 25, 25 is continuous with each other between the first to third curtain walls 5-7 adjacent to each other in the vertical direction, and guides the raising and lowering of the gondola used for cleaning or the like.
[0013]
The outdoor side surface of the recessed portion 24a is covered with an opaque decorative glass panel 10 such as a mirror glass, which is a decorative panel described in the claims. Of the four sides of the decorative glass panel 10, the upper side is embedded by an upper frame 26 fixed to the upper edge of the base 19a as shown in FIG. 17, and the lower side is shown at the top of the figure and FIG. It supports by the upper frame 14 for supporting the upper side of the said glass panel 13 for lighting. On the other hand, both the left and right sides of the decorative glass panel 10 are supported by recessed groove portions 27 (see FIG. 7) formed on both the left and right inner surfaces of the recessed portion 24a.
[0014]
Each of the recessed groove portions 27 is embedded in and fixed to the inner side surface of each of the side portions 20a and 20a in order to support the left and right sides of the daylighting glass panel 13 for constituting the glass window 3. 16 extension lines are provided. In order to form each concave groove portion 27 as described above, when the concrete is poured into the mold in order to make the main body 18a in the factory, these concave groove portions 27 are to be processed into portions to be processed in the mold. A spacer corresponding to the inner surface shape of each concave groove portion 27 is installed. The upper frame 14 for supporting the upper side of the daylighting glass panel 13 for constituting the glass window 3 and the eaves frames 16 and 16 for supporting the left and right side edges include the respective frames 14, A bracket (not shown) locked to 16 is welded to a reinforcing bar to be temporarily fixed at a predetermined position of the mold. Then, in a state where the concrete poured into the mold is solidified, a part of each of the frames 14 and 16 is embedded in a predetermined position of the concrete, and the frames 14 and 16 are fixed to the main body 18a. To do. The lower frame 15 and the reinforcing frame member 21 for supporting the lower side of the daylighting glass panel 13 are fixedly coupled to the main body 18a later.
[0015]
As described above, the concave groove portions 27 formed on both the left and right inner surfaces of the recessed portion 24a have the opaque decorative glass panel 10 for covering the outdoor side surface of the intermediate portion in the horizontal direction of the base portion 19a. The left and right edges are positioned. Then, as shown in FIG. 7, both sides of the left and right side edges of the decorative glass panel 10 are held down by holding members 28a and 28b made of an elastic material such as hard rubber. In the illustrated example, the base end portion of the holding member 28a that holds down the indoor side surface of the decorative glass panel 10 among the both holding members 28a and 28b is formed in a locking groove 29 formed in the base portion 19a. Locked. On the other hand, the base end portion of the holding member 28b for holding the outdoor side surface of the decorative glass panel 10 is fixed to a part of the guide rail 25 by adhesion or the like.
[0016]
In the case of the second curtain wall 6 which is the curtain wall of the present invention, as described above, both the left and right sides of the recessed portion 24a are used to support the left and right side edges of the opaque decorative glass panel 10. The manufacturing cost of the second curtain wall 6 is reduced by using the concave grooves 27 formed on the inner surface . That is, the outdoor side surface of the decorative glass panel 10 is positioned on the same plane as the outdoor side surface of the daylighting glass panel 13 constituting the glass window 3. Accordingly, a pair of left and right eaves frames 16 and 16 for supporting the left and right side edges of the daylighting glass panel 13 are extended to the left and right inner side surfaces of the recessed portion 24a above the glass window 3, It is also possible to support the left and right side edges of the decorative glass panel 10 with this extended portion. However, when such a structure is adopted, the necessary dimensions of the frame frames 16 and 16 increase, and the manufacturing cost of the second curtain wall 6 increases.
[0017]
On the other hand, in the case of the present invention, the guide rails 25, 25 and the frame frames 16, 16 are separated from each other, and the frame frames 16, 16 are connected to both side portions of the daylighting glass panel 13. It is provided only for. That is, the length dimension of each of the guide rails 25 and 25 is made to coincide with the height dimension of the second curtain wall 6, and the guide rails 25 and 25 are moved from the lower end surface to the upper end surface of the second curtain wall 6. Is arranged. On the other hand, the length of each of the collar frames 16 and 16 is shorter than the height of the second curtain wall 6 so as to coincide with the total length of the side portions 20a and 20a. , 16 are provided only on the inner side surfaces of these side portions 20a, 20a. By adopting such a structure, the required length of each of the frame frames 16 and 16 is shortened to reduce the manufacturing cost of the second curtain wall 6. Each of the flange frames 16 and 16 is coupled and fixed to the guide rails 25 and 25 by a plurality of sets of bolts 30 and nuts 31 (see FIG. 6).
[0018]
In the case of the illustrated example, outside air can freely flow inside the upper frame 14, the lower frame 15, and the left and right gutter frames 16, 16 surrounding the four sides of the daylighting glass panel 13. The prevention of dew condensation within 14-16 is aimed at. That is, in the illustrated example, as shown in FIG. 6, a plurality of ventilation holes 32, 32 (actually a set of small holes) in each of the guide rails 25, 25 and the flange frames 16, 16. The outside air can be taken into the space 33 between each of the frames 14 to 16 and the peripheral edge of the daylighting glass panel 13. Further, a plurality of vent holes 32a and 32a are formed in the ventilation frame 34 attached to the indoor side surface of either one of the fence frames 16 (left side in FIG. 6) so that the space 33 and the indoor space can communicate with each other. It is said. Then, in a state where the open / close door 35 provided in the ventilation frame 34 is opened as indicated by a chain line in FIG. 6, the outdoor 33 and the indoors are communicated with each other through the through holes 32, 32 a and the space 33. The inside is dried so that condensation can be prevented from occurring in the space 33. When the opening / closing door 35 is closed as shown by a solid line in FIG. 6, the indoor space and the outdoor space can be blocked so that the indoor space can be effectively air-conditioned.
[0019]
Next, the structure of the third curtain wall 7 which is also an object of the present invention will be described with reference to FIGS. The third curtain wall 7 has a left and right end portions of the lower surface of the wide base portion 19b provided at the upper end portion and a narrow connecting portion 36 provided at the lower end portion connected by a pair of left and right side portions 20b and 20b. It consists of The structure of the base 19b portion and the side portions 20b and 20b is the same as that of the second curtain wall 6 described above. In the case of the third curtain wall 7, the connecting portion 36 is also made of concrete integrated with the base portion 19b and the side portions 20b and 20b. Therefore, the third curtain wall 7 is not provided with the reinforcing frame member 21 unlike the second curtain wall 6. In addition, the outdoor side surface of the connecting portion 36 is covered with a stone panel to form the sub-portion 12 constituting the first light shielding portion 8.
[0020]
Also in the case of such a third curtain wall 7, a decorative glass panel 10 is provided above the glass window 3, and this portion is used as the second light shielding portion 9. Then, as in the case of the second curtain wall 6 described above, the left and right side edges of the decorative glass panel 10 are formed in the recessed groove portions 27 formed on the left and right inner surfaces of the recessed portion 24a . 7)). In the case of the third curtain wall 7, the upper side of the upper and lower sides of the decorative glass panel 10 is embedded in and fixed to the upper edge of the base portion 19 b, and the lower side is the glass window 3. These are supported by the upper frame 14 constituting the upper side.
[0021]
Next, the first curtain wall 5 that is not the subject of the present invention will be described with reference to FIGS. The first curtain wall 5 is made of precast concrete, and has a main body 18 that is a “U” shape having an opening at the bottom when viewed from the outdoor side and the indoor side. The main body 18 includes a base portion 19 provided at an upper end portion, and a pair of side portions 20 and 20 bent at right angles from both ends of the base portion 19 downward. Then, the lighting glass panel 13 is fixed to the main body 18 by surrounding the three sides of the lighting glass panel 13 with such a main body 18. A reinforcing frame member 21 is stretched between the lower end portions of the pair of side portions 20 and 20 at the indoor side portion of the lower frame 15 that supports the lower side of the daylighting glass panel 13. The base 19 provided at the upper end of the first curtain wall 5 has a shape projecting to the outdoor side from the outdoor side surface of the daylighting glass panel 13. Then, the surface is covered with a stone panel to improve the texture of the surface portion.
[0022]
Further, in the horizontal intermediate portion on the outdoor side surface of the base portion 19, in the portion corresponding to the upward extension line of the both side portions 20, 20 with respect to the horizontal direction, recessed grooves 24, 24 ( 8 and 9). Then, guide rails 25, 25 extending from the upper end surface to the lower end surface of the first curtain wall 5 in the vertical direction of the pair of inner side surfaces of the side portions 20, 20 and the recessed portions 24, 24 facing each other, respectively. It is fixed.
[0023]
The first to third curtain walls 5 to 7 each configured as described above are provided with mounting portions 37a provided at a plurality of positions (two in the illustrated example) on the indoor side surface. , 37b are connected and fixed to the frame of the steel structure. The vertical position of the abutting portion between the curtain walls 5 to 7 adjacent in the vertical direction is the vicinity of the floor walls 38 and 38 of the steel structure building. Since the structure of the connecting and fixing part is well known and is not related to the gist of the present invention, detailed illustration and description are omitted. Further, in a state where the curtain walls 5 to 7 are connected and fixed to the casing, the airtightness between the curtain walls 5 to 7 adjacent to each other in the vertical and horizontal directions is locked to the peripheral portions of the curtain walls 5 to 7. The packings 39 and 39 (see FIG. 5) are held together by being abutted.
[0024]
In the example shown in the figure, these packings 39 are provided in a state of being continuously provided on the four circumferences of the curtain walls 5 to 7. Between the curtain walls of the same kind adjacent in the horizontal direction, the packings attached to the outer surfaces of the main bodies 18 and 18a made of precast concrete are butted together. On the other hand, between different types of curtain walls adjacent in the vertical direction, the upper and lower surfaces of the main bodies 18 and 18a made of precast concrete, the upper surface of the upper frame 26, and the lower surface of the lower frame 15, respectively. The packings are butted together.
[0025]
【The invention's effect】
Since the present invention is configured and operates as described above, it is possible to obtain a curtain wall that has a structure that can realize a design that meets the requirements of the architect, and that can be manufactured at a low cost.
[Brief description of the drawings]
FIG. 1 is a partial front view of an outer wall surface of a building constituted by a curtain wall of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a sectional view taken along the line BB in FIG.
4 is an enlarged view of a portion C in FIG. 2;
FIG. 5 is an enlarged view of the D part.
FIG. 6 is an enlarged EE cross-sectional view of FIG. 1;
FIG. 7 is a sectional view taken along the line F-F.
FIG. 8 is a cross-sectional view of the same GG.
FIG. 9 is a front view of the first curtain wall as viewed from the outdoor side.
FIG. 10 is a rear view similarly viewed from the indoor side.
11 is a partial cross-sectional view seen from above in FIG. 9 in a state of being coupled and fixed to the housing.
12 is a cross-sectional view taken along the line HH of FIG. 9, showing a state in which the curtain wall is coupled and fixed together with another curtain wall.
13 is a bottom view seen from below in FIG.
FIG. 14 is a front view of the second curtain wall as viewed from the outdoor side.
FIG. 15 is a rear view similarly viewed from the indoor side.
16 is a partial cross-sectional view seen from above in FIG. 14 in a state of being coupled and fixed to the housing.
17 is a cross-sectional view taken along the line II of FIG. 14 in a state of being coupled and fixed to the housing together with another curtain wall.
18 is a bottom view seen from below in FIG.
FIG. 19 is a front view of the third curtain wall as viewed from the outdoor side.
FIG. 20 is a rear view similarly viewed from the indoor side.
21 is a plan view seen from above in FIG. 19 in a state of being coupled and fixed to the housing.
22 is a cross-sectional view taken along the line JJ of FIG. 19, showing a state in which the curtain wall is coupled and fixed together with another curtain wall.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Stone panel 2 1st part 3 Glass window 4 2nd part 5 1st curtain wall 6 2nd curtain wall 7 3rd curtain wall 8 1st light shielding part 9 2nd light shielding part 10 Decorative glass panel 11 Main part 12 Sub part 13 Daylighting glass panel 14 Upper frame 15 Lower frame 16 Hard frame 17 Window frame 18, 18a Main body 19, 19a, 19b Base portion 20, 20a, 20b Side portion 21 Reinforcement frame material 22 Fixing bracket 23 Connecting bracket 24, 24a Recessed portion 25 Guide Rail 26 Upper frame 27 Grooves 28a and 28b Holding member 29 Locking groove 30 Bolt 31 Nut 32 and 32a Vent hole 33 Space 34 Ventilation frame 35 Opening and closing door 36 Connecting part 37a and 37b Mounting part 38 Floor wall 39 Packing

Claims (4)

A concrete main body, a quadrangular daylighting panel that is surrounded by at least three sides by the main body and constitutes a glass window, a window frame for supporting the daylighting panel, and a decorative panel are provided. The main body includes a base portion and a pair of side portions bent at right angles from both ends of the base portion in the same direction, and the lighting panel is supported by the both side portions and the base portion. The decorative panel is supported by a frame, and is provided at a portion corresponding to an extension line of the inner side surface of the both side portions at a horizontal intermediate portion of the outdoor side surface of the base portion. A curtain wall covering the outdoor side surface of the base portion with both side edges supported by a recessed groove portion directly formed on a pair of inner side surfaces facing each other without the window frame interposed therebetween. Entity, a base provided at an upper end portion or a lower end portion, which was extended in the horizontal direction from both ends a pair of side portions of the base portion downward or upward, opposing these sides and recesses 1 A pair of guide rails each extending from the upper end surface to the lower end surface are fixed in the vertical direction of the inner side surfaces of the pair, and the window frame and the groove portion are provided on the indoor side portions of both the guide rails. The curtain wall according to claim 1. The curtain wall according to claim 2, wherein a guide frame and a separate guide frame constituting the side of the window frame are screwed and fixed to a partially indoor side surface of the guide rail. An upper surface of the upper frame made of an aluminum alloy extruded mold for supporting the upper side of the decorative panel protrudes upward from the upper surface of the main base and another upper wall of the upper frame is adjacent to the upper surface of the upper frame. The curtain wall according to any one of claims 1 to 3, further comprising a packing for closing a gap therebetween.

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