JP2000273995A - Floor fitting structure of composite panel for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor fitting structure of composite panels for a floor, capable of fitting composite panels to the metallic beams of a steel-frame building, of being easily fitted, and of decreasing the width of a joint. SOLUTION: A metallic fitting for fitting a composite panel 30, 30' to a metallic beam 5 is composed of a holding plate 11 attached to the beam, and a fixing plate 12 for fixing the composite panel 30, 30' together with the holding plate 11. The holding plate 11 comprises a vertical part abutting on the small surface having short sides of the composite panel 30, 30', and a clamp part 11b arranged under the vertical part for clamping the beam. The fixing plate 12 is inserted into a rectangular through-hole drilled and formed in the upper part of the vertical part to press the composite panel 30, 30 toward the beam. The upper end 11d of the vertical part of the holding plate 11 is curved or bent so that its tip end is slightly lower than the horizontal line of the top edge of the through-hole, and an inclined plane is formed on the upper surface of side edge part of the fixing plate 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention fixes a composite panel for a floor made of a light-weight aerated concrete (hereinafter referred to as ALC) panel to both sides of a wooden plywood, on a metal beam such as H steel of a steel building. The present invention relates to a floor mounting structure for a composite floor panel constructed as described above.

[0002]

2. Description of the Related Art Conventionally, a metal beam for a steel building is used for floor A.
When attaching the LC panel, a horizontal reinforcing bar is generally inserted into a vertical iron piece fixed to the beam, and the reinforcing bar is arranged in a joint groove at the upper edge of the long side of the ALC panel. A wet construction method is employed in which mortar is filled in joints in the pits and short sides of adjacent ALC panels. However, this construction method is wet, so not only the construction period becomes longer,
There was a problem in terms of safety due to welding work on narrow beams.

[0003] Therefore, there have been proposed construction methods and structures using various fittings to attach the floor ALC panel to a metal beam with a fitting. For example, in the construction method shown in FIG. 5, through holes 1b are formed in the vicinity of both ends of the floor ALC panels 1, 1 'in which the short sides are arranged opposite to each other. 2, a nut plate 4 is screwed to the back surface of each ALC panel with a nut 4, and the upper flange 5a of the metal beam 5 is clamped by the nut plate 3. This structure is simple, but the counterbore 1a is processed on the surface of each floor ALC panel 1 and 1 ', and then repair is necessary. Also, the workability is poor because the work must be performed from the back side of the floor structure. There was a problem.

In the construction method shown in FIG. 6, the lower end of a vertical round bar 6 is bent so that an upper flange 5a of a metal beam 5 is clamped.
The upper surface of the floor ALC panels 1, 1 ', whose short sides face each other, is fastened to the upper surface of the round bar 6 by a flat plate 7 penetrating through the upper thread portion. In this case, the joint width of the short sides of the ALC panels 1 and 1 'facing each other is equal to or larger than the diameter of the round bar 6, or the flat plate 7 is embedded at the end of the upper surface of both the ALC panels 1 and 1'. Notch 1a, and a notch 1 for burying a horizontal portion of a round bar on the back surface of one ALC panel 1 for a floor.
b has to be machined, and the notch 1a needs to be repaired later, so that there is a problem that the operation is troublesome.

Further, in the structure shown in FIG. 7, pointed projections provided on both sides from the vertical surface of the L-shaped plate-shaped metal fitting 7 are provided on the long sides of the ALC panels 1 and 1 'for floors where the short sides are opposed to each other. 7
The upper flange 5a of the beam 5 is clamped and fixed by an L-shaped portion 7c at the lower end of the mounting bracket 7. However, in this method, it is necessary to machine an accurate notch in which only the mounting bracket 7 is buried, and there is a further problem that this machining is troublesome. In addition, although not shown, there is a construction method of welding a long nut or a mounting bracket to the upper surface of the metal beam, but it is not desirable to perform the welding work at the site as described above, and in any case, the opposite floor When the joint width of the short side of the ALC panel becomes large, the joint must be filled with mortar, etc., which takes time and labor, and there is a method of filling with rock wool. If it is large, there are many problems such as a decrease in soundproofing.

On the other hand, a composite panel in which wooden plywood is adhered to both sides of an ALC panel has been developed as a floor panel. However, when this composite panel is used by attaching it to a wooden joist, a technique as described in Japanese Patent Application Laid-Open No. 8-53891 has been proposed, but it is fixed to a metal beam made of H steel or the like. At present, an appropriate construction method has not yet been put to practical use.

[0007]

SUMMARY OF THE INVENTION The present invention not only makes it possible to mount a composite floor panel on a metal beam of a steel building, but also makes it easy to install and reduces the joint width. It is an object of the present invention to provide a floor mounting structure for a composite panel for floors.

[0008]

According to the present invention, there is provided a floor mounting structure for a floor composite panel according to the present invention, wherein a metal fitting for mounting the floor composite panel to a metal beam is attached to the beam. And a fixing plate for fixing the composite panel together with the holding plate, wherein the holding plate is disposed below the vertical portion and the vertical portion in contact with the short side edge of the composite panel. And a sandwiching portion to the beam, characterized in that the composite panel is pressed against the beam by inserting the fixing plate into a rectangular through hole formed in the upper part of the vertical portion,
The upper end of the vertical portion of the holding plate is curved or bent so that the tip is located slightly below the horizontal line of the upper end edge of the through hole, and the fixing plate is located on the upper surface or its side edge. It is characterized in that an inclined surface is formed.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The mounting bracket used in the floor mounting structure of a floor composite panel according to the present invention comprises a holding plate and a fixing plate, and a holding portion provided below the holding plate is made of metal. In the state where the upper flange of the beam is sandwiched and the vertical portion of the holding plate is in contact with the short side face of the composite panel facing the
If the fixing plate is inserted into the horizontally extending rectangular through hole formed at the top of the vertical part, the floor mounting structure is completed,
It takes no trouble to fix the composite panel for floor to the beam.
Also, since the upper end of the holding plate is curved or bent so that the tip is located slightly below the horizontal line of the upper edge of the through hole, when the fixed plate having a uniform thickness is inserted, the curved portion or the bent portion is bent. Since the upper surface of the fixing plate is pressed downward by the bending portion, the floor composite panel is firmly fixed to the beam.

If the upper surface of the fixing plate or the side edge thereof is inclined, the upper surface of the floor composite panel is lowered with the flat back surface when the fixing plate is inserted into the through hole of the holding plate. And firmly fixed. Further, the joints of the opposite composite panels of the floor mounting structure formed using this mounting bracket are extremely small only by the thickness of the holding plate, so that the subsequent processing is easy and the soundproofing is excellent.

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a first embodiment of a mounting bracket used in the present invention, and FIG. 2 is a vertical section showing a floor mounting structure for fixing a composite floor panel to a metal beam using the mounting bracket. FIG. In the present invention, the mounting bracket 10 is used.
Is a holding plate 11 attached to the beam 5 made of H steel;
A fixing plate 12 having a substantially uniform thickness for pressing and fixing the floor composite panels 30 and 30 'mounted thereon from above by pressing them elastically.
The holding plate 11 has a thickness of 3 mm and a width of 50 m.
m, made of a plated steel plate having a total height of 91 mm, and a substantially U-shaped holding portion 11b for holding the upper flange 5a of the beam 5 below the vertical portion 11a abutting on the short edge of the composite panel 30, 30 '. On the other hand, a rectangular through hole 11c extending horizontally, through which the fixing plate 12 can be inserted, is formed in the upper part of the vertical portion 11a. The upper end portion 11d of the holding plate 11 has a front end formed with the through hole 11c.
Is curved so as to be located slightly below the horizontal line of the upper edge. Note that the upper end portion 11d can be formed by bending so that the front end is located slightly below the horizontal line of the upper end edge of the through hole 11c.

On the other hand, the fixed plate 12 is 5 mm thick and 30 m wide.
m, made of a plated steel plate having a length of 100 mm, and one end 12a thereof is warped upward. The fixing plate 12
Are provided with two nail holes 12b. Further, the floor composite panels 30, 30 'are ALC panels 3 having a thickness of 75 mm.
A wooden plywood 31 having a thickness of 12 mm is adhered to the surface side of 3,
Also, a wooden plywood 32 having a thickness of 4 mm is bonded to the rear surface, and the composite panels 30 and 30 'opposed to each other are formed.
Mounting portions 31a of the mounting bracket 10 at both ends of the
The plywood 31 of one of the mounting portions 32a is cut out in advance.

Next, when the floor composite panels 30, 30 'are fixed to the metal beam 5 using the mounting bracket 10, one of the composite panels 30 is first attached to the upper surface of the upper flange 5a of the beam 5. The upper flange 5a of the beam 5 is held by the holding portion 11b of the holding plate 11, and the short side face of the one floor composite panel 30 is attached to the vertical portion 1 of the holding plate 11.
1a. Then, another floor composite panel 30 'is attached and the vertical portion 11a of the holding plate 11 is brought into contact with the short side edge of the holding panel 11, and then the holding plate 11 protruding above the opposed composite panels 30, 30'. When the fixing plate 12 is inserted into the through hole 11c from the direction of the warped end 12a, the fixing plate 12
Is pressed downward by elastic pressure at the tip of the curved portion of the holding plate 11. In this state, the composite panel 3 facing from the nail hole 12b
The nail 13 is driven into the 0, 30 'and fixed.

Next, FIG. 3A is a perspective view of a second embodiment of the mounting bracket used in the present invention, and FIG. 4 uses this mounting bracket to convert a floor composite panel into a metal beam. It is a longitudinal cross-sectional view which shows the fixed floor mounting structure. The shape and dimensions of the mounting bracket 20 according to the second embodiment are substantially the same as those of the first embodiment, and a substantially U-shaped holding portion 21b is provided below the vertical portion 21a of the holding plate 21. But
The upper portion of the vertical portion 21a is provided with only a horizontally extending rectangular through hole 21c through which the fixing plate 22 can be inserted, and the upper end portion of the fixing plate 22 is not bent or bent. . Further, the entire upper surface 22a of the fixing plate 22 is an inclined surface, and two nail holes 22b are drilled.
On the other hand, in the fixing plate 23 shown in FIG. 3B, three edges of the upper surface of the fixing plate 22 are bent upward,
The upper surface of both side edges 23a in the longitudinal direction forms an inclined surface, and two nail holes 23b are formed as in FIG. 3 (A).

Next, the method of fixing the composite floor panels 30, 30 'to the metal beam 5 using the mounting bracket 20 shown in FIG.
The upper surface 22a or the side edge 23a of the fixing plate 23 is an inclined surface. When the fixing plates 22 and 23 are inserted into the through holes 31a of the holding plate 21, the flat back surface of the fixing plate 22 The upper surfaces of the panels 30 and 30 ′ can be pressed downward and firmly fixed to the upper surface of the upper flange 5 a of the metal beam 5.

In these examples, since a composite panel in which wooden plywood was bonded to both sides of the ALC panel was used, it was not necessary to process the panel on site and the number of steps was shortened, but it was used for a normal ALC panel floor mounting structure. Even in this case, the processing is relatively easy because there are few notches. The dimensions and the like of the above-mentioned mounting bracket can be appropriately selected as needed.

[0017]

As described above, according to the present invention, the upper flange of the beam is held by the holding portion below the holding plate, and the short side edge of the composite panel facing the vertical portion is brought into contact. ,
By inserting a fixing plate into the rectangular through hole at the top, the floor composite panel can be fixed to the metal beam, and the fixing is not troublesome. Also, since the upper end of the holding plate is curved or bent so that its tip is located slightly below the horizontal line of the upper edge of the through-hole, when the fixed plate having a uniform thickness is inserted, the curved portion or the bent portion is bent. Since the upper part of the fixing plate is pressed downward by elastic pressure at the portion, the floor composite panel is firmly fixed to the metal beam.

If the upper surface of the fixing plate or the side edge thereof is inclined, when the fixing plate is inserted through the through hole of the holding plate, the upper surface of the floor composite panel is lowered on the flat back surface. , And the joints of the opposing floor composite panels of the floor mounting structure using this mounting bracket are extremely small only by the thickness of the holding plate. The effect of being easy and having excellent soundproofing can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a mounting bracket used in the present invention.

FIG. 2 is a longitudinal sectional view showing a floor mounting structure in which a floor composite panel is fixed to a metal beam using the mounting bracket of FIG. 1;

FIGS. 3A and 3B are perspective views showing a second embodiment of the mounting bracket used in the present invention, in which FIG. 3A shows an embodiment in which the entire upper surface is an inclined surface, and FIG. It is a figure which shows the Example which became the inclined surface.

4 is a longitudinal sectional view showing a floor mounting structure in which a floor composite panel is fixed to a metal beam using the mounting bracket of FIG. 3;

FIG. 5 is a longitudinal sectional view showing a conventional floor panel mounting structure.

FIG. 6 is a vertical sectional view showing another conventional floor panel mounting structure.

FIG. 7 is a longitudinal sectional view showing still another conventional floor panel mounting structure.

[Explanation of symbols]

 Reference Signs List 5 Metal beam 5a Upper flange 10, 20 Mounting bracket 11, 21 Holding plate 11a, 21a Vertical portion 11b, 21b Nipping portion 11c, 21c, 31a Through hole 11d Upper end portion 12, 22, 23 Fixing plate 12a End portion 12b, 22b , 23b nail hole 13 nail 22a upper surface 23a side edge 30, 30 'composite panel 31 wooden plywood 33 ALC panel 32 wooden plywood 31a, 32a mounting part

Claims (3)

[Claims] A metal fitting for attaching a floor composite panel to a metal beam comprises a holding plate attached to the beam, and a fixing plate for fixing the composite panel together with the holding plate. The holding plate is composed of a vertical portion abutting on the short side edge of the composite panel and a holding portion for a beam disposed below the vertical portion, and a rectangular through hole formed in an upper portion of the vertical portion. Characterized in that the composite panel is pressed against the beam by inserting the fixing plate through the fixing plate. 2. An upper end portion of a vertical portion of the holding plate is curved or bent so that an end thereof is located slightly below a horizontal line of an upper edge of the through hole. Floor mounting structure of composite panel for floor. 3. The floor mounting structure of a floor composite panel according to claim 1, wherein the fixed plate has an inclined surface formed on an upper surface or a side edge thereof.