JPH1122087A - Steel structure floor structure and mounting bracket for composite panel, and method of forming floor structure with composite panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor structure of a steel building, and a method of forming a floor structure by using a mounting bracket and a composite panel used for the floor structure. SOLUTION: At least four corners of a composite panel 10 in which a wood panel 12 is adhered to at least the back surface of an ALC panel 11 are characterized by a floor structure of a steel building fixed to a steel beam 2 for a floor. The upper ends of two orthogonal vertical parts are bent in the horizontal direction to form horizontal parts that can be screwed on the surfaces of two adjacent composite panels,
At one lower end of the vertical part, a metal part A20 in which the holding part of the upper flange of the steel beam is integrally protruded, and a plate made of a plate material having a step part at a substantially central part, and one surface is overlapped with the horizontal part of the metal part A. And a metal fitting B for screwing the other surface to two composite panels adjacent to the composite panel, and further comprising a reinforcing bar using the metal fitting for the floor composite panel. A method for forming a floor structure of a building is characterized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure in which a composite panel made of lightweight cellular concrete (hereinafter referred to as ALC) is mounted on a steel beam for a floor of a steel building, a mounting bracket and a composite panel used for the floor structure. And a method for forming a floor structure using the method.

[0002]

2. Description of the Related Art Conventionally, ALC is used for steel beams for steel building floors.
When installing a panel, generally, as shown in FIG.
The base of the plate-shaped mounting bracket 3 is welded to the upper flange of the steel beam 2 for the floor, and the facing ALC panels 1 are laid with the bracket 3 sandwiched therebetween. This ALC panel 1 has a normal width of 600
mm, a thickness of about 100 to 150 mm, and a length of about 2400 mm, and a groove 1 a is provided over the entire length on both sides of the long side small face of the ALC panel 1.

[0003] A reinforcing bar 4 penetrating the vicinity of the upper end 3a of the mounting bracket 3 is arranged in the groove 1a, and the mortar 5 is filled in the joint between the groove 1a and the short side small face. Then A
Although not shown, a leveling material is applied to the surface of the LC panel 1 with a thickness of about several mm (not shown) or a particle board is laid to finish the floor surface smoothly. However, since this floor structure is constructed by a wet method, not only is it troublesome, but also there is a problem that other work cannot be performed on the floor until the material is dried, so that the construction period becomes long.

Various dry construction methods have been proposed as other construction methods. For example, as shown in FIG. 7, an upper flange of a floor beam 2 is sandwiched by a base of an L-shaped fitting 6, and a vertical thread portion is formed. There is also a construction method in which a washer-shaped plate 7 penetrating through and abuts against the bottom surface of a notch 9 formed on the upper surface of the panel 1 and screwed with a nut 8. Although this method can be performed in a dry manner, it takes time and effort to cut out the threaded portion of the ALC panel 1, and there is also a problem that the floor surface is not smooth and the long side face of the adjacent ALC panel 1 is creaked. there were. Further, in any of the methods, the ALC panel is large and heavy, so that the handling property is poor, it takes time and effort, and the thickness of the floor becomes thick, so that there is a problem that the indoor height becomes low.

Further, as described in Japanese Patent Application Laid-Open No. 8-151770, as a floor structure of a wooden building, a composite panel in which a wooden panel is attached to a thin ALC panel surface and a corrosion-resistant sheet is attached to a back surface side is a wooden structure. There is also a method of screwing directly to joists and beams. In this case, the thickness of the floor can be reduced, but it cannot be applied to steel beams. Therefore, it has been desired to develop a floor structure which can be easily attached to a steel beam on a floor of a multi-story floor, and which is thin and has excellent workability and soundproofing.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to use a composite panel having a large flexural strength and excellent handling properties in spite of its small thickness, and to perform the dry process by using a composite panel. An object of the present invention is to provide a floor structure of a steel frame building which can be shortened and a room height can be increased, and a method of forming a floor structure by using a mounting bracket and a composite panel used for the floor structure.

[0007]

In order to achieve the above object, a first embodiment of the present invention provides an ALC having a thickness of less than 75 mm.
At least four corners of a composite panel having a wood panel adhered to at least the back surface of the panel are characterized by a floor structure of a steel building fixed to a steel beam for floor.

According to a second embodiment of the present invention, upper ends of two orthogonal vertical portions are bent in the horizontal direction to form horizontal portions which can be screwed on the surfaces of two adjacent composite panels. A metal part A in which a holding part of an upper flange of a steel beam is integrally protruded from one lower end of the vertical part;
Metal plate B, which is made of a plate material having a stepped portion at a substantially central portion, and one surface is overlapped with the horizontal portion of the metal member A and screwed, and the other surface is screwed to two composite panels adjacent to the composite panel. The present invention is characterized by a fitting for mounting a composite panel for floors.

Further, according to a third embodiment of the present invention, the first composite panel is laid in contact with a steel beam, and a vertical portion of a metal piece A bent at a right angle is engaged with a corner thereof. Securing the upper flange of the beam by the arm of the hardware A and fixing the vertical portion to the composite panel fore edge; and forming a second composite on the beam across the vertical portion of the hardware A Laying a panel, further laying third and fourth composite panels adjacent to the beam in the longitudinal direction, and bending a part of the metal A at a right angle on the surface of the adjacent composite panel to form a horizontal portion. Forming a part of the metal part B on the horizontal part, and driving screws into the four composite panels from four corners of the metal part B to fix the metal part B, and repeating these steps sequentially. And a method for forming a floor structure using the method.

The floor structure of a steel building according to the present invention is, for example, a plywood having a thickness of 12 mm adhered to an ALC panel having a thickness of 37 mm, for example, and a cushioning material, a soundproofing material, a plywood, etc. are adhered to the surface. A composite panel configured to be worn can be used. And the thickness 75 thus configured
At least four corners of a composite panel in which a wood panel is adhered to at least the back surface of an ALC panel of less than mm are fixed to a steel beam for floor.

As a method of fixing the composite panel to the steel beam for floor, the wood panel on the back side of the composite panel may be directly screwed to the beam, but it is preferable to fix the composite panel using the mounting bracket. . When the composite panels are fixed to the floor steel beams, the four corners of each composite panel can be fixed, or the number of fixing points can be increased depending on the dimensions. Further, the interval between the steel beams for the floor is preferably a pitch corresponding to the strength of the composite panel. For example, in the case of the composite panel having the dimensions described above, it is desirable to be about 900 mm.

The floor structure of a steel building according to the present invention uses the composite panel having the above-described structure, so that it has high bending strength and excellent handling properties despite being thin, and the composite panel and the composite panel according to the present invention. Since it can be installed in a dry manner because it is used together with the mounting bracket, the number of steps is reduced, the construction period can be shortened, and the indoor height can be increased. Further A
If you attach cushioning material, soundproofing material, plywood, etc. on the LC panel surface, not only will the floor finish be easy,
A floor structure with excellent soundproofing can be formed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a partially broken plan view illustrating a floor structure according to the present invention, and FIG. 2 is a sectional view of FIG. FIG. 3 is a cross-sectional view taken along the line, and FIG.
(A) is a perspective view before bending processing, (b) is a perspective view in a state of being bent at a right angle along a notch and a straight depression,
(C) is a perspective view of the state where it is further bent at a right angle along the straight concave portion, FIG. 4 is a perspective view of the metal B used in the present invention, 10 is a composite panel, and the length of one side is 908.
ALC panel 11 having a square shape of 37 mm, a thickness of 37 mm, and a corrugated reinforcing bar (not shown) embedded therein, a 12 mm-thick wood plywood 12 bonded to the back surface thereof, and affixed to the surface thereof. Asphalt sheet 13 having a total thickness of 6 mm and a cushion 13 a having a thickness of 3 mm fixed on the back surface
ALC panel 11 and wood plywood 12
And the asphalt sheet 13 are integrally molded. However, asphalt sheets 13 are not attached to the four corners of the ALC panel 11 to which the fittings made of A hardware and B hardware described below are fixed, and the surface of the ALC panel 11 is locally exposed.

The mounting bracket used for this floor structure is as follows:
The two A metal parts 20 and the B metal part 25 are a pair, and one A metal part 20 shown in FIG. 3 is a substantially square having a side length of 95 mm formed by processing a plated steel sheet having a thickness of 1.6 mm. The main body 21 includes an arm portion 24 integrally projecting from one corner of the main body 21. The main body 21 is the same as the cutout portions 21a, 21b, 21c, 21d provided at the center of each side. Depression 21e on a straight line extending on the line, 2
If, 21g, four substantially square portions 22a, 2
2b and 23a, 23b.

The notch 21a on the side opposite to the side from which the arm 24 protrudes extends almost to the center of the main body 21, so that the portions 23a and 23b separated by the notch 21a are mutually reciprocated. The notch 21a
To form a separated part. On the other hand parts 23a and 2
2a, parts 22a and 22b, and parts 22b and 23b
And between the recesses on the straight line 21e, 21f, 2
1 g is formed, thereby facilitating bending. In addition, each part 22a, 22b, 23a and 23
b has through holes 22'a, 22'b, 23'a and 23 '
b is drilled.

Then, through holes 22'a formed in portions 22a and 22b which become vertical portions by bending described later,
22'b is a nail 18 to be driven into the small face of the ALC panel 11.
The through holes 23 ′ a and 23 ′ b formed in the horizontal portions 23 a and 23 b by bending are also provided with screw screws for driving into the surface of the composite panel 10. 14 is provided for penetration.

On the other hand, the arm portion 24 integrally projecting from the main body 21 is provided with a projection 24a which forms a notch 24b for holding the upper flange of the floor beam 2 between the edge of the portion 23b. The arm 24 has a substantially U-shape as a whole.

Referring to FIG. 3, a process for using the A metal hardware 20 will be described. FIG. 3 (a) is a perspective view before bending, and FIG. 3 (b) is a straight depression 2 extending over the notches 21a and 21c.
The perspective view of the state bent at right angle along 1f, (c) is a linear recess 21e, 21g extending over the cutouts 21b and 21d.
3A is a perspective view of a state in which the metal part 20 is further bent at a right angle along a straight line along a straight recess 21f extending between the notches 21a and 21c. A vertical portion is formed by 22a and 22b.
Next, the portion 23a of the main body 21 bent as shown in FIG.
And 23b are further bent horizontally at right angles along the straight recesses 21e and 21g extending over the cutouts 21b and 21d, but the portion 23a extends along the straight recess 21e outside the right angle region formed by the vertical portion. In the same manner as described above, the worker manually folds horizontally at a right angle, while the part 23b is manually bent horizontally at a right angle along the straight depression 21g toward the inside of the right-angled area. hand,
As shown in (c), horizontal portions are formed by the portions 23a and 23b, respectively.

The other metal B 25 shown in FIG. 4 is formed in a plate shape from a substantially square plated steel plate having a thickness of 1.6 mm and a side length of 95 mm.
b and through holes 25a are formed at four corners. A pair of through-holes 25a located on the upper surface side of the step portion 25b are provided corresponding to the through-holes 23'a and 23'b formed in the horizontal portions 23a and 23b of the one A hardware 20. ing.

To construct the floor structure of the present invention using the above-described composite panel 10 in a building in which the steel beams 2 for floors are arranged at a pitch of 908 mm on a steel frame, first, a composite panel is used. The back plywood 10a of 10a is laid in contact with the beam 2, and the four corners are engaged with the vertical portions 22a and 22b of the A hardware 20 bent in the state of FIG. Projection 24a of the arm portion 24 on the upper flange
The notch 24b formed by the above is inserted and clamped, and the through holes 22'a, 22 'of the portions 22a, 22b are attached.
From b, it is fixed to the small face of the ALC panel 11 with the nail 18.

Next, a composite panel 10b adjacent to the beam 2 in a direction perpendicular to the beam 2 is laid with one portion 22a forming the vertical portion 21 of the A metal piece 20 interposed therebetween. 10c and 10d are laid, and the A hardware 20 is attached to the opposite ends of the composite panel 10c in the same manner as described above. In this state, the horizontal parts 23a and 23b of the metal hardware 20 attached to the composite panel 10a are bent at right angles on the surfaces of the composite panels 10a and 10b, and the parts 23a and 23b are provided with one surface of the metal B 25. And screw screws 14 are connected to both through holes 25a and through holes 23 '.
a, 23'b are penetrated and driven into the composite panels 10a, 10b and screwed to the plywood 12 on the back surface of the ALC panel 11.

Then, the other surface of the metal B 25 is brought into contact with the surfaces of the composite panels 10c and 10d, and the screw screws 14 are passed through the through holes 25a and driven into the composite panels 10c and 10d in the same manner as described above. When screwed to the plywood 12 on the back surface of the panel 11, adjacent corners of the four composite panels of the panels 10a to 10d are fixed. By repeating this operation, a floor structure is formed by the composite panel 10.
When the composite panel 10 in contact with the wall of the room is fixed to the beam 2, the A hardware 20 is replaced with the A hardware 20a, 20 shown in FIG.
The unnecessary portion may be separated and used as in b.

Thereafter, if necessary, a finishing material such as a flooring or a carpet is attached to the surface to complete the floor structure. Further, if rubber-like cushioning material is sandwiched between the composite panel 10 and the beam 2, the soundproofing property is further improved. The dimensions of each part of the composite panel 10 and the shape and dimensions of the mounting bracket can be appropriately selected as necessary.

FIG. 5 is a longitudinal sectional view showing a floor structure according to another embodiment of the present invention. The composite panel 30 of this embodiment has an ALC having a thickness of 37 mm, a width of 600 mm and a length of 1800 mm.
Panel 31 and thickness 12 mm adhered to the entire back surface
And a 4 mm thick plywood 33 adhered to its surface except for four corners. The floor steel beams 2 are arranged at a pitch of 1800 mm, and an intermediate beam 2a similar to the beam 2 is also arranged in the middle thereof, and through holes are formed in the upper flange of the intermediate beam 2a at a desired pitch. .

When the composite panel 30 is mounted on the beam 2, the four corners are formed in the same manner as in the embodiment shown in FIGS.
The metal fittings 20 and the B metal fittings 25 are used and fixed with screw screws 14. Further, the intermediate beam 2a is screwed from the through hole to the plywood 32 on the back surface of the ALC panel 31 with a screw screw 15, or the inner plate 16 for holding the upper flange of the intermediate beam 2a is screwed to the plywood 32 with the screw screw 17. May be screwed on. In this manner, the composite panels 30 are sequentially laid, and thereafter, if necessary, a finishing material such as a flooring or a carpet is adhered to the surface to complete the floor structure. Further, if a rubber-like cushioning material is interposed between the composite panel 30 and the beam 2 or the intermediate beam 2a, the soundproofing property is further improved.

[0026]

As described in detail above, the floor structure of the present invention is obtained by using a composite panel which is thin but has high bending strength and excellent handling properties in combination with the mounting bracket of the present invention. Since it can be constructed by a dry construction method of directly attaching to a steel beam or by using a mounting bracket, it is not necessary to take any trouble, the construction period can be shortened, and the indoor height can be increased. Furthermore, if a soundproofing material is attached to the surface of the ALC panel in advance, or is attached after the composite panel is laid, a floor structure having excellent soundproofing properties is formed.

If the dimensions of the composite panel such as width, length and thickness are standardized and modularized, it is possible to cope with various structures of steel beams for floors. Since it can be easily attached to a wooden beam with screws or the like, a very remarkable effect can be obtained in practical use.

[Brief description of the drawings]

FIG. 1 is a partially broken plan view illustrating a floor structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line (A)-(A) of FIG.

FIGS. 3A and 3B are views showing a metal A used in the present invention, wherein FIG. 3A is a perspective view before bending, FIG. 3B is a perspective view of a state where the metal is bent at a right angle along a notch and a straight recess. (c) is a perspective view of a state where it is further bent at a right angle along the straight upper depression.

FIG. 4 is a perspective view of a hardware B used in the present invention.

FIG. 5 is a longitudinal sectional view showing a floor structure according to another embodiment of the present invention.

FIG. 6 is a partially cutaway perspective view illustrating a conventional floor structure.

FIG. 7 is a longitudinal sectional view illustrating another conventional floor structure.

[Explanation of symbols]

2, 2a Beam 10, 10a, 10b, 10c, 10d, 30 Composite panel 11, 31 ALC panel 12 Wood plywood 13 Asphalt sheet 13a Cushion 14, 15, 17 Screw screw 16 Inazuma plate 18 Nail 20, 20a, 20b A hardware 21 Body 21a, 21b, 21c, 21d Notch 21e, 21f, 21g Depression 22a, 22b, 23a, 23b Part 22'a, 22'b, 23'a, 23'b, 25a Through hole 24 Arm 24a Projection 24b Notch 25 B Hardware 25b Step 32, 33 Plywood

Claims (3)

[Claims] 1. A steel building characterized in that at least four corners of a composite panel having a wood panel adhered to at least the back surface of an ALC panel having a thickness of less than 75 mm are fixed to steel beams for floors. Floor structure. 2. An upper end portion of two perpendicular portions which are orthogonal to each other is bent in a horizontal direction to form a horizontal portion which can be screwed on a surface of two adjacent composite panels, and a lower end portion of one of the vertical portions. The metal part A, in which the holding portion of the upper flange of the steel beam is integrally protruded, and a plate material having a stepped portion in a substantially central part, one surface of which is overlapped with the horizontal part of the metal part A and screwed, and the other is fixed. A metal fitting B for screwing a surface to two composite panels adjacent to the composite panel, the mounting bracket for a floor composite panel. 3. A first composite panel is laid in contact with a steel beam, and a corner of the first composite panel is engaged with a vertical portion of a metal piece A bent at a right angle. Fixing the vertical portion to the front face of the composite panel, laying a second composite panel on the beam across the vertical portion of the hardware A, Laying third and fourth composite panels adjacent to each other in the longitudinal direction, forming a horizontal portion by bending a part of the hardware A at right angles on the surface of the adjacent composite panel, A step of fixing a part of the metal B on the four composite panels by overlapping a part of the metal B on the four corners of the metal B, and repeating these steps sequentially. Forming method.