JPH0736975Y2 - Curtain wall reinforcement structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a curtain wall reinforcing structure in which a curtain wall unit is vertically mounted.

2. Description of the Related Art There is a curtain wall unit (abbreviated as a unit) that constitutes a curtain wall, which has a frame structure in which upper and lower horizontal members and left and right vertical members are assembled.

In this type of unit, there may be a case where a notch is formed by cutting out a part of the vertical member on the outdoor side. That is, when adjusting the exterior design of the building by horizontally continuing one horizontal joint on the outer surface of the curtain wall composed of a plurality of units, on the outdoor side of the vertical member at the location where the horizontal joint and the vertical member intersect, A notch may be formed by cutting out a portion corresponding to the cross section of the horizontal joint.

If the notch is provided on the outdoor side of the vertical member in this manner, the unit will lack strength against the wind pressure from the front. Therefore, conventionally, a steel material is applied to the hollow portion of the vertical member. The bracket is fixed to the upright made of shaped steel, etc., and one end of this bracket is directly connected to the vertical member for reinforcement, but the former is difficult to attach to the hollow part of the vertical member and work efficiency is poor, It is uneconomical to use a cross-section with a considerable strength. Further, in the latter case, since the vertical member and the cuboid are directly fixed by the bracket, it is not possible to cope with the interlayer displacement of the building and the expansion and contraction of the mold member due to heat, and there is a drawback that the member is damaged.

DISCLOSURE OF THE INVENTION The present invention has a structure in which a unit having a notch on the outdoor side of a vertical member is reinforced against wind pressure and is capable of responding to interlayer displacement of a building and expansion / contraction of a mold member due to heat. The challenge is to provide a reinforcement structure for the curtain wall.

Means for solving the problem Curtain wall unit is framed by vertical and horizontal members,
It has a structure in which a seamless member having a concave groove portion opened to the outer surface is connected between the vertical members, and a notch portion communicating with the concave groove portion is provided on the outdoor side portion of the vertical member at a seamless connection point. This is related to the reinforcement structure of a curtain wall in which a simple curtain wall unit is attached to the body side upright.

The vertical member is connected vertically by the fixing bracket and the reinforcing bracket at the notch.

The fixing bracket is vertically fixed on one side, and the other side has a surface facing the outdoor side.

In the reinforcing bracket, a hook-shaped engaging portion provided at the outdoor side end is engaged with a hook-shaped engaging portion provided at the indoor side end of the vertical member so as to be rotatable and vertically slidable. .

The indoor side end of the reinforcing bracket is fixed to the other side of the fixed bracket so as to be tiltable left and right.

The reinforcing bracket and the fixed bracket connect the vertical member and the upright, and support the portion weakened in strength by the notch portion of the vertical member from the indoor side against wind pressure from the front acting on the vertical member.

The reinforcement bracket rotates and absorbs against the vertical and vertical members against interlayer displacement of the building, and the vertical member slides vertically with respect to the reinforcement bracket when the mold material expands and contracts due to heat. And absorb this.

Example FIG. 2 shows a curtain wall attached to the outer wall of a building, in which a shielding unit 1 and a daylighting unit 2 are regularly attached to a cubic 3 made of H-shaped steel according to the exterior design of the building. In FIG. 2, the building is tilted due to an earthquake or the like, and the units stacked vertically are shown in the state of interlayer displacement in which the units are displaced to the left and right.

The daylighting unit 2 is a sash type in which upper and lower horizontal frames 4 and 5 which are horizontal members and left and right vertical frames 6 and 7 which are vertical members are assembled in a rectangle, and a seamless 8 is connected between both vertical frames 6 and 7. is there.

The blind 8 (FIGS. 1 and 5) has a groove 9 that is open in the outdoor direction. The groove 9 is for forming a horizontal joint when each unit is attached to complete a curtain wall. From the exterior design of the building, the horizontal joints are continuous with the recessed groove portions 9 of the left and right adjacent units, and are horizontally passed through the outer surface of the curtain wall. Therefore, in each unit, the left and right vertical frames 6 where the seamless 8 is connected
As shown by the broken line in FIG. 1, the outdoor side portion 10 is provided with a notch portion 11 which communicates with the recessed groove portion 9 of the seamless portion 8 and is cut. The vertical frame 6 is formed at the cutout portion 11.
And the upright 3 are connected by a reinforcing bracket 12 and a fixed bracket 14.

The recessed groove portion 9 and the glass mounting groove 25 are communicated with each other through a communication hole 25 ', and the inside of the glass mounting groove 25 is made equal to the outside air pressure.

Note that FIG. 1 is a main part of a circled portion A in FIG.

3 to 5 specifically show the configuration of the main part. On the room side of the vertical frame 6, an engaging portion 13 is formed at a location of the cutout portion 11 and is bent in a hook shape in cross section and has a rounded tip. On the other hand, a fixed bracket is attached to the wall of the cubic 3 in the prospective direction.
One side of 14 is fixed, the other side is the surface facing the outdoor side,
A lateral U-shaped hole 15, one of which is open from the edge side, is provided vertically. The reinforcing bracket 12 is formed in an engaging portion 16 having a hook-shaped cross-section at the outdoor side end and a rounded tip, and an indoor side end facing the fixed bracket 14 is formed in a circular arc in a horizontal cross-section. It is configured in part 17. The mounting portion 17 has two bolt insertion holes 18 corresponding to the U-shaped holes 15 of the fixing bracket 14.

The engaging portion 13 of the vertical frame 6 is formed at the same time as a part of the vertical frame when it is extrusion-molded as a mold material, and the reinforcing bracket 12 has portions corresponding to the engaging portion 16 and the mounting portion 17 in cross section. It is formed by using an extruded aluminum alloy material. However, these may be formed by integrally forming each part separately.

One side of the fixing bracket 14 is fixed to the cube 3 in advance with bolts 19 and welding 20.

As shown in FIG. 4, the vertical frame 6 is roughly composed of a hollow main body portion 21 located on the indoor side and an outdoor side portion 10 in which an outer peripheral side prospective wall of the main body portion 21 is extended. The tight material 22 is mounted on the outer peripheral side of the portion 21, the outdoor side portion 10 serves as the groove bottom of the vertical mounting groove of the glass 23 to be fitted and killed, and the ridge 23 'is mounted on the inner peripheral side thereof. (Fig. 4). Also,
As shown in FIG. 5, the blind portion 8 is generally schematic, and a hollow main body portion 24 located on the indoor side and a groove 9 is formed on the outdoor side surface of the main body portion 24 so as to be divided into upper and lower parts and protrude outward. Consists of glass mounting grooves 25 and 26. The former is the lower side of the upper glass 23,
The latter receives the upper edge of the glass below.

Units 1 and 2 are cubic 3 to cope with the displacement between layers of the building.
On the other hand, both are attached so that both sides of the upper horizontal frame 4 can be displaced left and right, and both sides of the lower horizontal frame 5 can be displaced horizontally and vertically. That is, with respect to the cubic 3 fixed to the slab side that constitutes the floor, the daylighting unit 2 has a groove groove (not shown) on the indoor side of the upper horizontal frame 4 and the lower horizontal frame 5, and
Each of the left and right vertical frames 6 and 7 is also provided with a groove groove on the inside of the room. The upright frame 3 and the unit 2 upper horizontal frame 4 and the lower horizontal frame 5 are bolt nuts, and the heads of the bolts are the aforementioned groove grooves. Slidable inside,
In other words, they are connected so that they can be displaced relative to each other in the left-right direction, and similarly, the vertical frame 6 and the vertical frames 6 and 7 of the unit 2 are slidably mounted on the groove groove by bolt nuts, that is, in the vertical direction. Connect so that relative displacement is possible.

Alternatively, the upper, lower, left, and right corners of the rectangular frame formed by the upper and lower horizontal frames 4,5 and the left and right vertical frames 6, 7 in the unit 2 are
The horizontal frame and the vertical frame are connected to each other so that their corner angles can be changed, and one of the upper corner portions of this rectangular frame is slidably attached to one of the uprights 3 in the left-right direction and the other corner portion is attached to the other. , One of the lower corners is rotatably attached to one of the uprights 3, and the other corner is attached to the other upright and leftward slidable. The vertical frames 6 and 7 of 2 are attached to the vertical 3 so as to be slidable in the vertical direction, and the rectangular frame has a flexible frame structure that can be deformed to a parallelogram shape to some extent. Mounted on the cubic 3,3.

Then, at the above-mentioned cutout portion 11 of the vertical frame 6, the fixing bolt 27 is inserted into the bolt insertion hole 18 provided in the mounting portion 17 of the reinforcing bracket 12, and further, the washer 28 (Fig. 4) and the nut. After 29 is loosely attached, the engaging portion 16 of the reinforcing bracket 12 is laterally engaged with the engaging portion 13 provided on the indoor side surface of the vertical frames 6 and 7, and the attaching portion 17 is fixed to the fixing bracket.
After pivoting toward 14, the fixing bolt 27 is inserted into the U-shaped hole 15 from the side, and then the nut 29 is tightened and fixed. Incidentally, the outdoor side surface of the seat brace 28 is formed so as to have an arc-shaped cross section like the indoor side surface of the mounting portion 17 of the reinforcing bracket 12.

In FIG. 4, reference numerals 30 and 31 are a vertical cover and a eye plate, which surrounds the vertical 3 for makeup.

With the above configuration, the wind pressure acting on the front surface of the daylighting unit 2 in this curtain wall is
The upper horizontal frame 4, the lower horizontal frame 5, and the vertical frame 6 are supported at the notches 11. That is, the portion of the notch 11 of the vertical frame 6 is vertically engaged with the reinforcing bracket 12 and the fixed bracket 14 to be reinforced.

When a layer displacement occurs in the building, the upper horizontal frame 4,
The displacement of the lower horizontal frame 5 is absorbed by the connecting structure having the same degree of freedom as the conventional one. In other words, the interlayer displacement is the displacement that causes parallel movement between the upper slab (floor) and the lower slab when the skeleton sways due to an earthquake or the like in a building with layers, and each unit of the curtain wall installed between layers. Forces in opposite directions act on the upper side and the lower side. Further, due to the sunshine, indoor heating, or seasonal changes in air temperature, expansion and contraction of the mold material due to heat occurs in the structure material such as H-shaped steel and the common material constituting the frame of the unit. In these cases, if the unit 2 is fixedly attached to the skeleton, the attachment portion will be destroyed by the action force due to the interlayer displacement, but the attachment portion of the unit 2 and the skeleton is as described above. The concave grooves formed in the vertical frames 6 and 7 and the horizontal frames 4 and 5 and the slidable connection structure using bolts and nuts make it possible to make relative displacement. Both sides are movable up and down with respect to the cuboid 3, and this interlayer displacement is absorbed, the connection part between the lighting unit 2 and the cuboid 3 is destroyed, or the unit 2 itself is deformed. There is no. In the case of the unit 2 having a flexible frame structure, the interlayer displacement is absorbed by the rectangular frame deforming to a parallelogram shape to some extent.

On the other hand, at the place where the notches 11 of the vertical frames 6 and 7 are reinforced, the displacement between the upright 3 and the unit 2 in the in-plane direction of the unit (left-right direction in FIG. 4) or the flexible frame structure In the unit 2 having, the left and right vertical frames 6 and 7 are displaced so as to tilt left and right in the in-plane direction. In this case, since the left and right vertical frames 6 and 7 of the unit 2 move to the left and right, with the configuration of the arcuate surface of the mounting portion 17, the arcuate surface of the seat 28, and the U-shaped hole 15 with respect to the vertical 3 (see ), The fixing bolt 27 moves (tilts) so as to rotate in the U-shaped hole 15, and the circular arc surface rolls on the surface of the fixed bracket 14, so that the reinforcing bracket 12 tilts left and right, and The engaging portion 16 of the bracket rotates about the vertical axis with respect to the engaging portion 13 of the frame 6, and the displacement is absorbed.

Further, regarding the vertical component of the displacement at the portion where the notch 11 of the vertical frame 6 is reinforced, the engaging portion 13 of the vertical frame 6 is the reinforcing bracket.
It slides vertically with respect to the engaging portions 16 of 12 and absorbs it.

Even when the mold material expands and contracts due to heat, the displacement between the cube 3 and the daylighting unit 2 is the same, so that the displacement is absorbed in the same manner as the interlayer displacement.

In addition, in the horizontal joint of the seamless unit 8 of the daylighting unit 2, the recessed grooves 9 are continuous with the recessed grooves 9 of the left and right adjacent daylighting units 2 due to the notches 11 and 11 in the vertical frames 6 and 7 on both sides. As a result, a single horizontal joint is formed on the outer surface of the completed curtain wall. Further, as shown in FIG. 4, the gap 32 where the vertical frames 6 and 7 of the adjacent units 2 are in contact with each other becomes a joint in the vertical direction in the completed curtain wall.

The mounting of the reinforcing bracket 12 is performed by engaging and rotating from the side and tightening the nut 29, and the work can be easily performed even in a narrow place.

Although the description has been centered on the daylighting unit provided with the dead-glass as an example, the present invention can also be applied to a shielding unit having a similar structure.

Effect of the Invention When installing a curtain wall unit in which a notch communicating with the blind groove is provided on the outdoor side of the vertical member at the blind connection point, the notch is particularly weak against wind pressure. The part that has become is reinforced.

The reinforcing bracket can tilt to the left and right with respect to the vertical,
In addition, since it is engaged with the vertical member so that it can rotate and slide up and down, the reinforcing structure at the location where the vertical member has a cutout is used for the initial deviation of the building and the expansion and contraction of the mold material due to heat. Can be adapted.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part, FIG. 2 is a front view for explanation,
FIG. 3 is a perspective view of the bracket, FIG. 4 is a plan view of an essential part of which a part is a cross section, and FIG. 5 is a side view of an essential part of which a part is a cross section. 1 ... Shielding unit, 2 ... Lighting unit, 3 ... Cubic, 4,5 ... Horizontal frame (horizontal member), 6,7 ... Vertical frame (vertical member),
8 ... No eye, 9 ... Concave groove, 10 ... Outdoor side, 11 ... Notch, 12 ... Reinforcing bracket, 13 ... Vertical frame engaging,
14 …… Fixing bracket, 15 …… U-shaped hole, 16 …… Reinforcing bracket engaging part, 17 …… Mounting part, 18 …… Bolt insertion hole, 19 …… Bolt, 20 …… Welding part, 21 …… Main body, 22
...... Tight material, 23 ...... Glass, 24 …… Rim, 25,26 ……
Glass mounting groove, 27 …… Fixing bolt, 28 …… Seat box, 29 …… Nut, 30 …… Stand cover, 31 …… Eye board, 32
……gap.

Claims (1)

[Scope of utility model registration request] 1. A vertical / horizontal member is used as a frame, and a seamless member having a concave groove portion opened to the outer surface is connected between the vertical members, and the outdoor groove portion of the vertical member is communicated with the concave groove portion at a seamless connection point. In a curtain wall in which a curtain wall unit provided with a cutout portion is installed in an upright position, the indoor side of the vertical member corresponding to the location of the cutout portion is vertically connected by a fixed bracket and a reinforcing bracket, The fixing bracket is fixed upright on one side, and the reinforcing bracket rotates the hook-shaped engaging portion provided at the outdoor side end to the hook-shaped engaging portion provided at the indoor side end of the vertical member. A reinforcing structure for a curtain wall, which is slidably engaged in the vertical direction, and the indoor end of the reinforcing bracket is fixed to the other side of the fixing bracket so as to be tiltable left and right.