JP2000110287A - External wall panel mounting bracket assembly - Google Patents

Abstract

(57) [Summary] [PROBLEM] To partially reinforce some metal fittings used when a large external wall panel is attached to a beam of a steel frame of a high-rise building to form an external wall. By things
To provide an economical mounting assembly while minimizing weight and material cost increases while increasing vertical flexural strength. SOLUTION: This bracket assembly includes a short ruler angle having an L-shaped cross section, a self-weight receiving bracket 6, a support member, and a progress plate, among which the self-weight receiving bracket 6 and a progress plate (shown in the figure). Zu) was reinforced. The vertical portion of the weight receiving bracket 6 has a thickness of 6 mm, and a reinforcing plate 69 having a thickness of 4.5 mm is fixed to both sides of the elongated hole 62a of the central portion 62. The upper end of the 9 mm-thick inazuma plate is slightly thinner toward the end and has a shape that can be easily inserted into the groove 62 f of the weight receiving bracket 6. Ribs extending in the panel direction are provided at both ends.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an outer wall in which a large ALC outer wall panel having a width of more than 600 mm is attached to a beam of a steel frame of a building, and a mounting bracket assembly used for the outer wall. Is related to a mounting bracket assembly for a high-rise building exceeding 31 m.

[0002]

2. Description of the Related Art Conventionally, a beam of a steel frame of a building has a width of 6 mm.
To attach a large outer wall panel exceeding 00 mm,
Various construction methods have been adopted. In particular, in order to work on a scaffold and to make the outer wall structure capable of being locked,
A metal fitting assembly in which four kinds of metal fittings are combined as described in JP-A-110493 is used. In this structure, a predetermined metal fitting is slidably screwed to an anchor nut embedded near the four corners of the large panel, and this metal fitting is fixed to the vertical surface of the ruler angle fixed to the beam, thereby locking. It is possible.

[0005] As shown in the three-dimensional assembly diagram shown in FIG. 5, the metal fitting assembly includes a short ruler angle 3 having an L-shaped cross section as a first metal fitting, and a self-weight receiving metal fitting 6 as a second metal fitting. It is composed of a support member 7 as a third metal fitting and a progress plate 5 of the fourth metal fitting (shown in a state where the beam 2 is seen through). The ruler angle 3 is L-shaped and a vertical stiffener 3a is fixed to both ends. Next, the weight receiving bracket 6 includes a vertical center portion 62 and vertical wing portions 62 provided at both ends of the vertical center portion 62 in a direction opposite to the panel.
c and a horizontal receiving portion 61 that supports the upper outer wall panel via the support member 7.

[0004] The vertical wing portion 62c is open at a predetermined distance away from the vertical center portion 62 in a direction opposite to the panel and has a width that allows insertion of at least the vertical portion 3b of the ruler angle 3 and has a lower end opened. Vertical groove 62f is provided. The support member 7 has an inverted L-shaped cross section or Z
A protrusion (not shown) is provided at the center of the back surface of the horizontal plane. The inazuma plate 5 is made up of two iron plates.
It has a stepped shape, and has a long hole 5a at the lower end.

In the outer wall structure using these metal fittings, the horizontal portion 3d of the ruler angle 3 is fixed to the upper surface of the beam 2. Further, the self-weight receiving member 6 is buried in the vicinity of the lower end of the upper outer wall panel via a spin prevention washer 65 with a bolt 64 penetrating the elongated hole 62a of the vertical center portion 62, not shown. Secure the screw to the anchor nut. Then, the supporting member 7 supports the lower edge surface of the upper panel with the supporting member 7 placed on the upper surface of the horizontal receiving portion 61.

The progress plate 5 is screwed to an anchor nut (not shown) buried near the upper end of the lower outer wall panel through an anti-spin washer 52 with a bolt 51 penetrating the elongated hole 5a. Fix it. The outer wall structure is characterized in that the three members are fixed with the vertical portion 3b of the ruler angle 3 and the upper end portion 5d of the inazuma plate 5 inserted into the vertical groove 62f of the weight receiving bracket 6. I have.

When constructing such an outer wall structure,
Since all of the outer wall panels can be installed from the indoor side, there is no need for temporary installation of scaffolds. Further, in this structure, the outer wall panel is slidable on the screw fixing portion between the self-weight receiving bracket 6 and the inazuma plate 5, and the outer wall panel can be rocked with the projection of the support member 7 as a fulcrum, so that it has excellent earthquake resistance. Further, the thickness of the inazuma plate 5 is 9 mm.
Then, the thickness of the horizontal receiving portion 61 of the self-weight receiving bracket 6 is 12 mm.
The thickness of each metal fitting is 6 mm except for the thick metal. Since the material is plated steel, each metal fitting is lightweight and easy to process. For this reason, it is excellent in workability and economy.

[0008] However, these metal fittings have sufficient strength when used in a medium-to-low-rise building having a height of less than 31 m, but in the case of a high-rise building having a height of more than 31 m, a tensile load to the outdoor side is small. Due to the increase, the bending strength of the vertical portion of the weight receiving bracket or the inazuma plate may be insufficient. As a countermeasure, there is a method of thickening each metal fitting, but this method makes it difficult to bend the metal fitting, it becomes expensive, it becomes heavy, it becomes difficult to handle, and the external shape becomes large. Or the distance between the back surface of the outer wall and the beam is increased.

[0009]

SUMMARY OF THE INVENTION According to the present invention, when a large-sized outer wall panel is attached to a beam of a steel frame of a high-rise building to form an outer wall, a part of a metal fitting assembly to be used is partially removed. The purpose of this invention is to provide an economical mounting bracket assembly by minimizing the weight and material costs while improving the flexural strength of the vertical section by providing additional reinforcement.

[0010]

According to the present invention, there is provided an outer wall panel mounting bracket assembly comprising a ruler angle having an L-shaped cross section, a weight receiving bracket, a support member, and an inazuma plate, wherein the ruler angle is a beam. A vertical portion having a horizontal portion and a vertical portion fixed to the upper surface of the outer wall panel, and a vertical center portion slidably fixed to a lower end portion of the upper outer wall panel; A vertical wing portion provided in the direction, and a horizontal receiving portion that carries the upper outer wall panel via a support member, the vertical wing portion is away from the vertical center portion by a predetermined amount in a direction opposite to the panel. A vertical groove having a width that allows insertion of at least the vertical portion of the ruler angle is provided, and the supporting member is swingably provided on the upper surface of the horizontal receiving portion of the weight receiving bracket, and the inazuma plate is a lower outer wall panel. upon A lower end fixed to the portion, an upper end separated from the vertical center and fixed to a ruler angle, and a bent portion between the upper end and the lower end. A rising connecting portion of a horizontal receiving portion is fixedly welded to a side of the portion opposite to the panel, and a reinforcing plate is fixed to a side of the non-panel of a vertical center portion of the weight receiving metal fitting.

The upper end of the vertical center portion of the weight receiving bracket has a curved surface along the side opposite to the panel.

A detachable height adjustment mechanism is provided on the vertical wing portion of the weight receiving bracket for vertical positioning of the outer wall panel. Further, both ends of the L-shaped angle are fixed between the opposed vertical wings of the weight receiving bracket, and height adjusting bolts are inserted through the horizontal part of the angle.

It is preferable that a notch for welding having a width smaller than the width of the inazuma plate is provided on a vertical surface of the ruler angle. Also, on the vertical surface of the ruler angle,
Below the welding notch, a horizontally long hole is provided, and further, a notch is provided in a horizontal portion of the ruler angle, and the edge of the notch is welded to the upper surface of the beam. desirable.

The progress plate is preferably formed by bending a plate-like iron plate in a stepped manner, and the bent portion is preferably provided with a curved reinforcing rib.

The end surface of the inazuma plate in contact with the outer wall panel surface has a curved surface at the end in the direction in which the inner wall panel moves relative to the outer wall panel, or is inserted into the vertical groove of the weight receiving bracket. It is preferable that an inclined surface whose thickness becomes thinner toward the front end is formed at the outdoor end of the inazuma plate.

It is preferable that ribs are provided on both sides of an upper end portion of the progress plate in a panel direction.

The ruler angle may be a short ruler angle having a vertical stiffener fixed to both sides of a horizontal portion and a vertical portion and having a bolt hole.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION The mounting bracket assembly of the present invention has insufficient strength with conventional mounting brackets when a large outer wall panel is mounted on a beam of a steel frame of a high-rise building to form an outer wall. A reinforcing plate is fixed to both sides of the elongated hole in the vertical center portion of the weight receiving bracket, and ribs perpendicular to the panel rear surface are provided on both sides of the upper end of the inazuma plate. As a result, the strength of the screw fixing portion to the panel of the self-weight receiving metal fitting and the bending strength of the fixing portion to the ruler angle of the inazuma plate are improved, and the present invention can be applied to a high-rise building.

Further, by locally reinforcing only a necessary portion of a part of the metal fitting, an increase in the weight and material cost of each metal fitting can be minimized.

Further, since the outer shape of the metal fitting assembly of the present invention does not become larger than the conventional one, there is no need to increase the distance between the back surface of the outer wall and the beam.

The ruler angle can be structurally reinforced if it is a short ruler angle having a vertical stiffener fixed to both sides of a horizontal portion and a vertical portion and having a bolt hole. In addition, by moving the outer wall panel together with the weight receiving bracket with the bolts fastened to the bolt holes, horizontal positioning can be easily performed.

(Embodiment) An embodiment of the present invention will be described below. The same parts as those in the conventional example shown in FIG. 5 are denoted by the same reference numerals, but may have different shapes.

FIGS. 1 and 2 are perspective views of a weight receiving bracket and a progress plate of a bracket assembly of the present invention, respectively. FIG. 3 shows an outer wall panel attached to a beam using the bracket assembly of the present invention. FIG. 4 shows a partially broken front view showing the state,
FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3.

This bracket assembly is composed of a short ruler angle 3 having an L-shaped cross section, a self-weight receiving bracket 6, a support member 7, and a progress plate 5. Of these, the ruler angle 3, the support member 7, Means the dimensions etc. of JP-A-10-110
Although the same as the conventional metal fitting described in No. 493, the self-weight receiving metal fitting 6 and the inazuma plate 5 were reinforced according to the object of the present invention. The vertical part of the weight holder 6 has a thickness of 6 mm.
At both sides of the elongated hole 62a of the central portion 62, a thickness of 4.5
mm reinforcing plate 69 is fixed. The upper end 5d of the 9 mm-thick progress plate 5 is slightly thinner toward the front end, so that it can be easily inserted into the groove 62f of the own weight receiving bracket 6. Furthermore, ribs 5e having a height of 30 mm are provided at both ends to reinforce the structure.

Using this metal fitting assembly, the upper panel 1
The method of attaching the lower panel 11 to the frame 2 of the building is the same as the conventional method. First, the horizontal plane 3d is attached to the beam 2 so that the vertical surface 3b of the ruler angle 3 has the desired width.
Is fixed at a predetermined interval on the upper surface of the substrate. On the other hand, a bolt 64 that penetrates a long hole 62a of the vertical center portion 62 of the self-weight receiving bracket 6,
A pair of anchor nuts 1a buried in the vicinity of the lower end of the upper outer wall panel 1 are temporarily screwed to the pair of anchor nuts 1a via the anti-spin washers 65. , On the horizontal receiving portion 61.

A bolt 51 penetrating through the long hole 5a of the inazuma plate 5 is screwed to a pair of anchor nuts 11a embedded near the upper end of the lower outer wall panel 11 via an anti-spin washer 52. deep. Next, the upper end small surface of the upper panel 1 is lifted by a crane or the like (not shown) and suspended from above the lower panel 11, and the vertical portion of the angle 3 is inserted into the vertical groove 62f of the vertical wing portion 62c of the weight receiving bracket 6. 3b and the upper end 5d of the inazuma plate 5 already fixed to the lower panel 11 are inserted. At this time, the width between the ribs 5e at the upper end of the progress plate 5 is larger than the width between the vertical wings 62c, and both the vertical wings 62c are located between both the ribs 5e. Since the width of the vertical groove 62f is only required to be the sum of the thickness of the progression plate 5 and the thickness of the vertical portion 3b of the angle 3, it is not necessary to increase the width for the rib.
Is the same as that of the related art.

In this state, the progress plate 5 is temporarily fixed to the angle 3 and the upper panel 1 is fixed with the height adjusting bolt 66a.
Adjust the position in the height direction of the stiffener 3 of the angle 3
The position of the upper panel 1 in the width direction is adjusted with the bolts 3f screwed into “a”. Then, when the position of the upper panel 1 is determined, the progress plate 5 is welded to the vertical portion 3b of the angle 3 and the vertical wing portion 62c of the weight receiving bracket 6 is welded.
And the vertical portion 3b of the angle 3 at the contact portion of the groove 62f.
To weld.

All of these operations can be performed indoors. Also, after installing the panels sequentially,
The heat insulating material 10, the backup material 8, and the sealing material 9 are filled as needed, but this operation may be performed by suspending the gondola from above. Therefore, if the surface of the outer wall panel is preliminarily painted or a tile is pasted, there is no need to temporarily provide a working scaffold outdoors. In addition, it goes without saying that the dimensions and the like of each metal fitting of the mounting metal assembly may be appropriately selected according to the specifications of the building.

[0029]

As described in detail above, the mounting bracket assembly of the present invention is a conventional mounting bracket when a large outer wall panel is mounted on a beam of a steel frame of a high-rise building to form an outer wall. In this example, reinforcing plates were fixed to both sides of the elongated hole in the vertical center of the self-weight receiving bracket having insufficient strength, and ribs perpendicular to the panel rear surface were provided on both sides of the upper end of the inazuma plate. As a result, the strength of the screw fixing portion to the panel of the dead weight receiving bracket and the bending strength of the fixing portion to the ruler angle of the inazuma plate are improved, so that this mounting bracket assembly can be applied to a high-rise building.

Further, by locally reinforcing only a necessary portion of a part of the metal fitting, an increase in weight and material cost of each metal fitting can be minimized.

Further, since the thickness of the ruler angle or the progress plate is not increased, it is not necessary to increase the width of the vertical groove of the weight receiving bracket, and the distance between the wall vertical surface and the beam does not increase. In addition, since all the work of attaching the outer wall panels to the frame can be done indoors, there is no need to temporarily set up scaffolds, which saves labor and cost. Can be configured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a weight receiving bracket of a mounting bracket assembly of the present invention.

FIG. 2 is a perspective view showing a progress plate of the mounting bracket assembly of the present invention.

FIG. 3 is a partially cutaway front view showing a state in which an outer wall panel is attached to a beam using the fitting assembly of the present invention.

FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3;

FIG. 5 is a perspective view showing a conventional mounting bracket assembly.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper panel 1a Anchor nut 1b Tile 2 Beam 3 Ruler angle 3a Stiffener 3b Vertical part 3d Horizontal part 3f Bolt 5 Inazuma plate 5a Long hole 5b Lower part 5c Vertical part 5d Upper part 5e, 5f Rib 6 Self-supporting member 7 Backup material 9 Sealing material 10 Heat insulating material 11 Lower panel 11a Anchor nut 51, 64 Bolt 52, 65 Anti-spin washer 61 Horizontal receiving part 62 Vertical center part 62a Long hole 62b Tip part 62c Vertical wing part 62d Lower end part 62f Vertical groove 66 L L-shaped member 66a Height adjusting bolt 66b Vertical part 66c Horizontal part 66d Long hole 68 Nut 69 Reinforcement plate

Claims (12)

[Claims] 1. A ruler angle having an L-shaped cross section, a self-weight receiving bracket, a support member, and a progress plate, wherein the ruler angle has a horizontal portion and a vertical portion fixed to an upper surface of a beam, The self-weight receiving bracket includes a vertical central portion slidably fixed to a lower end portion of the upper outer wall panel, vertical wing portions provided on both sides of the vertical central portion in a direction opposite to the panel, and an upper The vertical wing has a width at which the vertical portion of the ruler angle can be inserted at least a predetermined amount away from the vertical center portion in a direction opposite to the panel, and the vertical wing portion has an open bottom end. A groove is provided, the supporting member is swingably provided on the upper surface of the horizontal receiving portion of the weight receiving bracket, and the progress plate is formed from the lower end portion fixed to the upper end portion of the lower outer wall panel and the vertical center portion. Separate ruler ang An upper end portion fixed to the bracket and a bent portion between the upper end portion and the lower end portion. A mounting member assembly for an outer wall panel, wherein a reinforcing plate is fixed to a side of the panel opposite to a vertical center portion of the dead weight receiving member. 2. The mounting bracket assembly for an outer wall panel according to claim 1, wherein a curved surface is formed along an opposite side of the panel at an upper end portion of a vertical center portion of the weight receiving bracket. 3. The outer wall panel mounting bracket assembly according to claim 1, wherein a detachable height adjusting mechanism is provided on the vertical wing portion of the dead weight receiving bracket. 4. An end portion of a horizontal member is fixed between opposed vertical wing portions of a weight receiving bracket, and a height adjusting bolt is attached to the horizontal member. The mounting bracket assembly for an outer wall panel according to any one of claims 1 to 3, wherein: 5. The mounting bracket assembly for an outer wall panel according to claim 1, wherein a notch for welding having a width smaller than the width of the inazuma plate is provided on a vertical surface of the ruler angle. 6. The outer wall panel according to claim 1, wherein the vertical surface of the ruler angle is provided with a horizontally long hole below the notch for welding according to claim 5. Mounting bracket assembly. 7. The outer wall panel according to claim 1, wherein a notch is provided in a horizontal portion of the ruler angle, and an edge of the notch is welded to an upper surface of the beam. Mounting bracket assembly. 8. The outer wall according to claim 1, wherein the progress plate is formed by bending a plate-like iron plate in a stepped manner, and the bent portion is provided with a curved reinforcing rib. Panel mounting bracket assembly. 9. A curved surface is formed on a surface of the inazuma plate in contact with the outer wall panel surface at an end in a direction in which the inner wall plate moves relatively to the outer wall panel, the curved surface being bent in a direction opposite to the panel side. Item 9. An outer wall panel mounting bracket assembly according to Item 1 or 8. 10. The outdoor end of the inazuma plate inserted into the vertical groove of the weight receiving bracket has an inclined surface whose thickness becomes thinner toward the tip. 10. A mounting assembly for an outer wall panel according to any one of 1, 8, and 9. 11. The outer wall panel mounting bracket assembly according to claim 1, wherein ribs are provided in a panel direction on both sides of an upper end portion of said progress plate. 12. The ruler angle according to claim 1, wherein the ruler angle is a short ruler angle having a vertical stiffener fixed on both sides of a horizontal portion and a vertical portion and having a bolt hole. A mounting bracket assembly for an outer wall panel according to claim 1.