JP2003064815A - Attaching structure for curtain wall unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate and shorten time of construction work to use different types of curtain walls, to easily correspond to a variety of heights, and to facilitate setting of position and size of a window frame sash. SOLUTION: The curtain wall unit 3 is formed by attaching a plurality of concrete panels 2 to a backing frame 1. The curtain wall unit 3 is attached to a building structure 4 at a backing frame 1 portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain wall unit mounting structure.

[0002]

2. Description of the Related Art Conventionally, a curtain wall 20 made of a concrete type panel such as an ALC panel is generally attached to a building structure 4 such as a beam 4a through a connecting metal fitting 21 as shown in FIG. Target. However, in such a conventional example, the curtain wall 20 made of a concrete panel such as an ALC panel is used.
Since each of them is lifted up by a crane and attached to the building structure 4 such as the beam 4a by using the connecting fittings 21, the workability is inefficient, and the installation work is troublesome and the construction time is long. there were. In addition, concrete panels such as ALC panels are produced in factories and transported to the site by trucks, etc. Therefore, thick and large panels are difficult to transport, and heavy and inefficient loading is required. However, there is a problem that quality deterioration such as cracking and cracking occurs.

Further, in the past, since the window frame was directly fixed to the building structure 4, there is a problem that the window frame is susceptible to interlayer deformation.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to increase the size of a panel, shorten the construction, and rationalize the construction. An object of the present invention is to provide a mounting structure for a curtain wall unit in which the frame sash is not subjected to interlayer deformation.

[0005]

In order to solve the above problems, a curtain wall unit mounting structure according to the present invention has a base frame 1 and a plurality of concrete panels 2.
The curtain wall unit 3 is attached to form the curtain wall unit 3, and the curtain wall unit 3 is attached to the building structure 4 at the base frame 1 portion. In this way, multiple concrete panels 2
The construction in which the attached curtain wall unit 3 is attached to the building structure 4 at the base frame 1 portion can shorten the construction and facilitate the construction. Further, even when the concrete-based panel 2 is tiled or the like, it is not necessary to provide expansion joints for each of the concrete-based panels 2, and the design is improved. Further, since the number of joint processing points is reduced, it is possible to easily adopt the open joint when the rain barrier and the window barrier are installed in the joint state. In addition, by assembling the base frame 1 on site and attaching a plurality of concrete-based panels 2 to the base frame 1 on site, a large curtain wall unit 3 is formed or the size of the base frame 1 is increased. By adapting to the floor height of the site, it becomes possible to easily adapt to various floor heights. Also,
A plurality of different types of concrete panels 2 can be attached to the base frame 1, and not only the original concrete panel 2 but also various commercially available concrete panels 2 can be used.

It is preferable that a plurality of concrete panels 2 are attached to the base frame 1 and a window frame sash 5 is attached to form the curtain wall unit 3. By thus incorporating the window frame sash 5 into the curtain wall unit 3 to which a plurality of concrete panels 2 are attached, not only the curtain wall unit 3 with the window frame sash 5 can be formed, but also the base frame 1 It is easy to set the position and size of the window frame sash 5 to be installed in the large curtain wall unit 3 by selecting the installation position of the window frame sash 5 into the window and selecting the size of the window frame sash 5 to be installed. It will be. Further, since the window frame sash 5 is not fixed to the building structure 4 but attached to the base frame 5, it does not undergo interlayer deformation.

The concrete panel 2 may be a lightweight concrete plate.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

The curtain wall unit 3 of the present invention is
A plurality of concrete panels 2 are attached to a base frame 1 formed by integrally forming a metal vertical frame 1a and a horizontal frame 1b. Here, when the curtain wall unit 3 is configured by attaching only a plurality of concrete-based panels 2 to the base frame 1, and when the plurality of concrete-based panels 2 and the window frame sash 5 are attached to the base frame 1. Then, the curtain wall unit 3 may be formed.

One embodiment is shown in FIGS. 1 and 6, in which a plurality of concrete type panels 2 are attached to a base frame 1 in the horizontal direction and a plurality of stages in the vertical direction (FIGS. 1, 6).
In this embodiment, the concrete-based panel 2 is attached to the second stage, and the window frame sash 5 is further incorporated between the upper and lower concrete-based panels 2 and attached. When installing the multi-tiered concrete panels 2 on the top and bottom, or on the top and bottom of the multi-tiered concrete panels 2 and the window frame sash 5, etc., install the middle horizontal frame 1b 'on the base frame 1. The concrete-based panel 2 and the window frame sash 5 are attached. That is, in the embodiment shown in FIG. 1, the upper end of the upper concrete panel 2 is attached to the upper horizontal frame 1b by bolts, and the lower end of the upper concrete panel 2 is fixed to the upper middle horizontal frame 1b '. Attaching with bolts, the upper and lower ends of the window frame sash 5 are attached to the upper middle horizontal frame 1b 'and the lower middle horizontal frame 1b' with screws or bolts, and further, the lower concrete panel 2 The upper end of the lower concrete horizontal panel 1b 'is attached to the lower middle horizontal frame 1b' by bolts, and the lower end of the lower concrete panel 2 is attached to the lower horizontal frame 1b by bolts. The lower horizontal frame 1b or the middle horizontal frame 1b 'for attaching the lower end of the concrete panel 2 has an L-shaped cross section composed of vertical pieces and horizontal pieces. And the lower end of the concrete panel 2 is attached to the vertical piece by bolts. By doing so, the lower end of the heavy concrete-based panel 2 can be reliably supported and the concrete-based panel 2 can be easily positioned.

The window frame sash 5 may be incorporated into the base frame 1 when the curtain wall unit 3 is preassembled on the ground, or the curtain wall unit 3 is attached to the building structure 4 as described later. After the attachment, the window frame sash 5 may be incorporated and attached to the base frame 1 of the curtain wall unit 3.

Here, the number and the vertical position of the middle horizontal frames 1b 'are the number of stages of the concrete panel 2 and the window frame sash 5 arranged vertically, or the number of the concrete panels 2 of each stage arranged vertically. It is set by the length of the window frame sash 5 in the vertical direction. Therefore, the concrete panel 2 arranged in the vertical direction, the number of stages of the window frame sash 5, the concrete panel 2 of each stage arranged in the vertical direction.
And the horizontal frame 1b 'according to the vertical length of the window frame sash 5
It is possible to deal with various sizes of concrete-based panels 2 and window frame sashes 5 by freely selecting the number and the vertical position. Further, the mounting position of the window frame sash 5 on the base frame 1 can be freely selected. That is, although the window frame sash 5 is arranged between the upper and lower concrete panels 2 in the drawing, as a modification of the example of FIG. 1, for example, the window frame sash 5 may be arranged at the bottom or the top to be attached. Alternatively, the window frame sashes 5 may be arranged and attached to the upper and lower stages, and the concrete panel 2 may be arranged and attached to the middle stage, or the windows may be attached to the upper and middle stages or the lower and middle stages. The frame sash 5 may be arranged and attached, and the concrete panel 2 may be arranged and attached on the lower or upper stage.

In the embodiment shown in FIGS. 1 and 6, a plurality of concrete panels 2 are attached to a base frame 1 in the lateral direction, and at the same time, in a plurality of vertical steps (two steps in the embodiments of FIGS. 1 and 6). An example is shown in which the concrete system panel 2 is attached and the window frame sash 5 is further attached between the upper and lower concrete system panels 2 to form the curtain wall unit 3.
A plurality of concrete panels 2 may be attached to the base frame 1 in the horizontal direction and a plurality of concrete panels 2 may be attached in the vertical direction to form the curtain wall unit 3.

Further, as shown in FIG. 7, a plurality of concrete panels 2 may be attached to the base frame 1 only in the lateral direction to form the curtain wall unit 3, and the base frame 1 is The shape is not limited to the rectangular shape, and the upper horizontal frame 1b may be inclined corresponding to the inclination of the roof as shown in FIG.

In any of the above embodiments, as shown in FIGS. 4 and 5, the base frame 1 has a panel attaching portion 11 and a back protruding from the end of the panel attaching portion 11 to the back. A metal fitting attaching portion 12 having one end connected to the one side protruding portion 18 is provided, and the rear surface portion of the concrete-based panel 2 or the rear surface portion of the window frame sash 5 is brought into contact with the panel attaching portion 11 so that the bolt 13 The metal fitting attaching portion 12 is located rearward of the panel attaching portion 11, and the rear surface of the concrete panel 2 is attached to the panel attaching portion 11. The heads of the fasteners such as bolts 13 and screws for attaching the rear portion of the window portion or the window frame sash 5 to the back side do not protrude further to the back side than the metal fitting attaching portion 12 to be fixed.

However, the curtain wall unit 3 having the above-described structure is assembled and manufactured at an Aji Ajime factory and transported to the site, or assembled on the ground at the site. Since the system panel 2 is attached and the curtain wall unit 3 is formed, a large curtain wall unit 3 can be easily formed. In particular, in the case of an on-site assembly, the size is not restricted by transportation, so that even a larger size that cannot be easily transported by a truck can be easily assembled. In this case, even if the concrete panel 2 manufactured in the factory and transported to the site has a large thickness, if it is small in size, it can be transported as a single plate without causing any trouble in transportation by a truck. As a result, the thick concrete-based panel 2 is carried to the site, the large-sized base frame 1 is assembled on the site, and a plurality of thick concrete-based panels 2 are attached to the large-sized base frame 1. The curtain wall unit 3 having a large size and a large thickness may be configured.

As described above, the curtain wall unit 3 in which a plurality of concrete panels 2 are attached to the base frame 1 which is assembled and manufactured in a factory in advance and carried to the site, or assembled and formed on the site is mounted on the site by a crane. It is to be hoisted and attached to the building structure 4 such as the beams 4a and columns using the connecting fittings 14.

In the embodiment shown in FIGS. 4 and 5, the connecting fitting 14 has an L-shaped cross section in which a vertical piece 14b is projected from one end of the horizontal piece 14a. The horizontal piece 14a is attached to the flange of the beam 4a made of
3, the base frame 1 of the curtain wall unit 3 is attached to the vertical piece 14b of the connecting fitting 14 attached to the beam 4a by the bolt 13 in this manner. When mounting the bolts 13 on the base frame 1, as shown in FIG. 4 and FIG. 5, the bolts 13 are mounted on the metal fitting attaching portion 12 of the base frame 1. It is attached by means of bolts 13 to the metal fittings attaching portion 12 which is displaced and fixed to one side.
Can be disposed between the concrete-based panel 2 and the metal fitting attaching portion 12, and can be mounted by the bolts 13 without being disturbed by the concrete-based panel 2. Here, the nut 15 may be fixed to the metal fitting attaching portion 12 in advance by welding or the like.

By mounting the curtain wall unit 3 with the bolts 13 as described above at the work site, welding at the work site is not required, the construction efficiency can be improved, and the quality deterioration and sparks may occur. There is no safety issue.

A curtain wall unit 3 in which a plurality of concrete panels 2 are attached to a base frame 1
Is set to the same length as the length between the upper and lower beams 4a (that is, the same length as the floor height), and the curtain wall unit on the lower floor is provided below the vertical piece 14a of the connecting fitting 14 attached to the beam 4a. The upper end portion (that is, the upper horizontal frame 1b) of the base frame 1 of 3 is attached by the bolt 13 and
4, the lower end of the base frame 1 of the curtain wall unit 3 on the upper floor (that is, the lower horizontal frame 1).
A) is attached by the bolt 13.

Further, as shown in FIG. 8, connecting fittings 14 are attached to the upper and lower flange portions of the beam 4a made of H steel, respectively, and the lower portion of the connecting fitting 14 attached to the lower flange portion of the beam 4a is provided on the lower floor. The upper end of the base frame 1 of the curtain wall unit 3 (that is, the upper horizontal frame 1b) is attached by the bolts 13, and the base of the curtain wall unit 3 on the upper floor is attached to the upper part of the connecting fitting 14 attached to the flange portion above the beam 4a. Attach the bolt 1 to the upper end of the frame 1 (that is, the upper horizontal frame 1b).
The curtain wall unit 3'for a beam cover having a short vertical height is arranged on the outer side of the beam 4a.
The lower end (that is, the lower horizontal frame 1b) of the base frame 1 of the curtain wall unit 3'for a beam cover is attached to the upper part of the connecting metal fitting 14 attached to the lower flange part with the bolt 13 and the upper flange of the beam 4a is attached. The upper part of the base frame 1 of the curtain wall unit 3'for the beam cover (that is, the upper horizontal frame 1
The b) may be attached by the bolt 13.

Further, in any of the embodiments, at the bottom floor, the lower end of the base frame 1 of the curtain wall unit 3 is fixed to the upper surface of the foundation 17 by anchor bolts 16 as shown in FIG. It is attached to the connecting hardware 14 'of FIG.

The base frame 1 is attached to the building structure 4 using the connecting fittings 14, and then the base frame 1 is attached.
It is also possible to attach a plurality of concrete panels 2 to each other, or to attach a plurality of concrete panels 2 and window frame sashes 5.

[0024]

As described above, according to the first aspect of the present invention, a plurality of concrete panels are attached to the base frame to form a curtain wall unit,
Since this curtain wall unit is attached to the building structure at the base frame part, compared to the conventional method of suspending a curtain wall made of concrete panels with a crane and attaching it to the building structure one by one, a plurality of concrete Since the curtain wall unit in which the system panel is attached to the base frame is attached to the building structure, the positioning accuracy is improved, the site construction can be greatly simplified, and the construction time can be shortened. By assembling a frame and attaching a plurality of concrete-based panels to this foundation frame on site to form a large curtain wall unit, or by adapting the size of the foundation frame to the floor height of the site, It is possible to easily accommodate various floor heights,
In addition, a plurality of different types of concrete-based panels can be attached to the base frame, and not only the original concrete-based panels but also various commercially available concrete-based panels can be used.

In addition to the effect of the invention described in claim 1, in the invention described in claim 2, a plurality of concrete panels are attached to the base frame and the window frame sash is attached. Since the curtain wall unit is formed, the window frame sash is not fixed to the building structure, so that interlayer deformation does not occur. Also, by selecting the installation position of the window frame sash on the base frame and the size of the window frame sash to be installed, it is easy to set the position and size of the window frame sash to be installed in a large curtain wall unit. It will be.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a curtain wall unit mounting structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the same curtain wall unit (the window frame sash is omitted in the drawing) attached to a building structure.

FIG. 3 is a transverse sectional view of the above.

FIG. 4 is an enlarged sectional view of a portion A in FIG.

5 is an enlarged cross-sectional view of a portion B of FIG.

6A and 6B show an embodiment of the curtain wall unit used in the above, wherein FIG. 6A is a rear view, FIG. 6B is a side sectional view, and FIG.

FIG. 7 shows another embodiment of the curtain wall unit used in the same as above, (a) is a rear view, (b) is a side sectional view, and (c) is a plan sectional view.

FIG. 8 is a rear view showing still another embodiment of the curtain wall unit used in the above.

FIG. 9 is a cross-sectional view showing another embodiment of attachment of the curtain wall unit of the above.

FIG. 10 is a cross-sectional view showing a mounting portion of the above curtain wall unit to a foundation.

FIG. 11 is an exploded perspective view showing attachment of a conventional curtain wall.

[Explanation of symbols]

1 Base frame 2 Concrete panel 3 Curtain wall unit 4 Building structure 5 window frame sash

Claims (2)

[Claims] 1. A curtain wall unit is formed by attaching a plurality of concrete panels to a base frame.
An attachment structure for a curtain wall unit, characterized in that the curtain wall unit is attached to a building structure at a base frame portion. 2. The attachment of a curtain wall unit according to claim 1, wherein a plurality of concrete panels are attached to the base frame and a window frame sash is attached to form a curtain wall unit. Construction.