JPH0324546B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides support for a sash unit in a curtain wall of a building, which is mainly composed of various panels such as precast concrete slabs and sash units such as windows that are attached to openings formed by the panels. Regarding structure.

Conventionally, as a support structure for the sash unit in this type of curtain wall, a precast concrete plate is fixed to the building structure leaving an opening for installing the window, the sash unit is fitted into the opening, and the upper and lower sections are fixed. The frame and left and right vertical frames are each fixed to four concrete slabs. However, this conventional support structure has the disadvantage that the concrete slabs are displaced in various directions due to so-called inter-story displacement during an earthquake, resulting in damage or severe deformation of the sash unit.

The object of the present invention is to provide a curtain wall sash unit support structure in which the sash unit will not be damaged or distorted even in the event of an earthquake.
Only the lower frame is fixed to the upper and lower panels. The details of the present invention will be explained below with reference to the drawings.

Referring to Figure 1, a panel 1 made of a rectangular plate-shaped precast concrete slab is installed on the exterior of the building.
... to the building structure, and the upper, lower, left, and right panels 1a, 1b, 1c, 1 at the window mounting position.
Open the opening P for installing the window sash surrounded by d,
A window sash consisting of a window frame consisting of upper and lower frames 2 and 3 and left and right vertical frames 4 and 5 and a horizontal bar 6 and a rotating shoji 7 and a folding shoji 8 is fitted into the opening P. It is fixed to panels 1a and 1b located above and below the opening P in the upper and lower frames 2 and 3.

First, a tight material fitting groove 9 is provided on the outdoor side surface of the upper frame 2 of the window frame as shown in the second figure, and an elastic tight material 10 such as rubber or synthetic resin is attached to the fitting groove over the entire length of the upper frame. A bolt guide groove 11 having an approximately C-shaped cross section is provided on the upper surface of the upper frame 2, and a tight material fitting groove 12 is provided on the lower surface of the lower frame 3 as shown in the third figure. An elastic tight material 13 is attached over the entire length of the lower frame.

As shown in FIG.
4 is fixed over the entire length of the vertical frame with screws 15..., and one side of each corner reinforcing piece 16, 16 made of angle-shaped material is attached to the lower end of the reinforcing members 14, 14, and the reinforcing piece is attached to the bottom surface of the lower frame 3, respectively. In addition to welding in the extended state, the reinforcing pieces 16, 16 are respectively connected to the lower frame 3 by screws 17 as shown in the third figure, and the upper ends of the reinforcing members 14, 14 are provided with corners having a flat groove shape in cross section. One end of the reinforcing pieces 18, 18 is welded with the other end extending to the upper surface of the upper frame 2, and the reinforcing pieces 18, 18 are connected to the upper frame 2 by screws 19, respectively.

In this example, the upper frame 2 of the window frame is fixed to the indoor side surface of the upper panel 1a with anchor bolts 21 while in contact with the indoor side surface of the lower end of the upper panel 1a via the tight material 10. The three angle-shaped fasteners 20 are fixed to the bolts 22 with their heads fitted in the bolt guide grooves 11, and the nuts 23, and the lower frame 3 is appropriately extended toward the indoor side of the lower panel 1b at the upper end 1b'. The corner reinforcing pieces 16, 16 are placed on top with the tight material 13 interposed therebetween.
is fixed to the overhanging upper end portion 1b' with anchor bolts 24..., and at the same time, an angle-shaped fastener 25, which is similarly fixed to the lower frame 3 at the intermediate portion of both reinforcing pieces 16, 16, is fixed to the overhanging upper end portion 1b' with anchor bolts. In this case, the left and right vertical frames 4 and 5 are located on the indoor side of the left and right panels 1c and 1d. 31... is a sealing material and 32... is a back-up material, and the upper and lower frames 2 and 3, the left and right frames 4 and 5, and the upper and lower panels 1.
The gaps between the panels a and 1b and the left and right panels 1c and 1d are filled respectively.

As mentioned above, the left and right vertical frames 4 and 5 of the window frame with the upper and lower frames 2 and 3 fixed and the left and right panels 1c and 1d
In between, a stretchable curtain-like tight material 26, which extends over the entire length of the vertical frame on the indoor side of the sealing material 31, is provided.
26, the tight material 26 is a belt-shaped sheet main body having elasticity such as synthetic rubber or synthetic resin, and mounting portions 27 and 28 are provided at both ends of the main body.
In this example, with the main body bent into a U-shape, one mounting portion 27 is provided in the tight material fitting groove 2 at the end of the vertical frame.
9, attach the other mounting portion 28 to the left or right panel 1.
They are fixedly attached to mounting grooves 30 provided on the indoor side surfaces of 1d and 1d, respectively.

On the indoor side surfaces of the left and right panels 1c and 1d, there are projecting portions 1c' and 1 at a height corresponding to the projecting upper end 1b' of the lower panel 1b, as shown in the fourth figure.
d' are provided in a protruding manner, of which a rise 33 on the indoor side of the upper surface of the overhanging upper end 1b' is provided, and the curtain-like tight material 26 is provided continuous with the rise 33 on the upper surface of the overhang parts 1c' and 1d'. Surrounding L-shaped rising 3
4 and 34, respectively, and a seal on the upper surface of the overhanging end 1b' is provided at the joint portion of the lower panel 1b and the left and right side panels 1c, 1d using a sealing material 35, as shown in the third figure. material 31 and rising 33
A drainage channel 3 that opens between the panels and opens to the outside of the panel room.
6 and 36, respectively.

The lower end of the curtain-like tight material 26 is in contact with the upper surface surrounded by the rising edge 34 of the overhanging end 1c' or 1d', and a notch 37 is provided in the sash side portion of the lower end as shown in the sixth figure. be.

In the above-mentioned window sash support structure, if displacement occurs between the upper and lower floors across the opening P due to an earthquake, the upper, lower, left, and right panels 1a, 1b, 1c, and 1d will Although they are displaced in different directions, the left and right vertical frames 4 and 5 of the window are the left and right panels 1.
Since the window sash is not fixed at the corners c and 1d, the window sash is only affected by the displacement of the upper and lower panels 1a and 1b, and window sashes can generally be allowed to deform to some extent at corner joints. , the window sash will not be damaged.
At this time, as the left and right vertical frames 4 and 5 move, the curtain-like tight members 26 and 26 expand and contract to constantly seal between the left and right vertical frames 4 and 5 and the left and right panels 1c and 1d. . Even if the sealing material 31 is torn due to an earthquake or the like, if rainwater that has entered between the vertical frames 4 and 5 and the left and right panels 1c and 1d reaches the tight materials 26 and 26, the rainwater will be transferred to the tight materials 26 and 26. It flows down through the notches 37, 37 at the lower end to the upper surface of the overhanging ends 1c', 1d', and flows into the drainage channel 3 at the joint.
6, 36, and is discharged to the outside through the drainage channel.

According to the earthquake-resistant and watertight support structure of the curtain wall sash unit of the present invention, even if interstory displacement occurs between the upper and lower parts of the sash unit that sandwich the sash unit due to an earthquake, the sash unit will not be fixed to the left and right panels of the sash unit. The left and right vertical frames can easily move to sufficiently prevent damage to the sash unit, and in addition, as the left and right vertical frames move, the elastic tight material also elastically displaces as appropriate to move the left and right vertical frames. and the left and right panels, and elastic tight materials are also pressed against the openings between the upper and lower frames and the upper and lower panels, respectively. Therefore, the closure is reliably maintained, and its value in use is extremely high.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partial front view of a curtain wall, FIG. 2 is an enlarged sectional view of FIG. 1, and FIG. 3 is an enlarged sectional view of FIG. The figure is a partially omitted sectional view of Figure 3.
Figure 5 is a rear view of the upper corner of the window;
The figure is a perspective view of the lower end of the curtain-like tight material. 1a... Upper panel, 1b... Lower panel, 1
c...Left panel, 1d...Right panel, 2...
Upper frame, 3... Lower frame, 4... Left vertical frame, 5... Right vertical frame, 10... Elastic tight material, 13... Elastic tight material, 26... Stretchable curtain-like flexible elastic tight material, 31 ...Sealing material, P...Opening for window installation.

Claims (1)

[Scope of Claims] 1. In a structure in which a sash unit having upper and lower frames and left and right vertical frames is installed in an opening formed between panels fixed to the exterior surface of a building, the upper and lower frames of the sash unit At the same time, a watertight means is provided between the four circumferences of the sash unit and the upper and lower panels and the left and right panels of the opening. The elastic tight material of the upper frame is brought into pressure contact with the indoor surface of the above opening, the elastic tight material of the lower frame is brought into pressure contact with the upper surface of the opening, and the elastic tight material of the left and right vertical frames is pressed into strip-like shape. in,
An earthquake-resistant and watertight support structure for a curtain wall sash unit, where one end is attached to the vertical frame and the other end is attached to the interior surface of the opening panel to close it.