JP2000136593A - Floor structural body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a floor structural body solving problems of composite ALC floor panels of the prior art, being excellent in strength, fire resistance, and executability although being small in thickness, and being easily mountable on the beams or joists of a building made of steel or wood. SOLUTION: A floor structural body comprises a composite ALC panel, which consists of an ALC panel 11 having an overall width of 600 to 300 mm and a thickness of 35 to 50 mm and a wood board 12 affixed to the overall surface of at least one side of the ALC panel, and at least one pair of square timbers 14 secured to the wood board along almost the overall longitudinal length of the composite ALC panel and parallel to the board. In this case, a fastener is fixed in a recess part 14a formed in the surface of each square timber opposing to the wood board, on at least one end of each square timber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure for a steel or wooden building, and more particularly to a floor structure comprising a composite lightweight cellular concrete (hereinafter referred to as ALC) panel and a wooden square. It is about structure.

[0002]

2. Description of the Related Art Conventional steel beams for floors of steel buildings
When the C panel is mounted, generally, as shown in FIG. 5, the base of the plate-shaped mounting bracket 3 is welded to the upper surface of the steel beam 2 for the floor, and the longitudinal direction of the ALC panel 1 opposed to the ALC panel 1 in a state where the bracket 3 is sandwiched. Both ends in the direction are suspended and laid on the steel beam 2.
This ALC panel 1 usually has a width of 600 mm and a thickness of 100 to 100 mm.
The ALC panel 1 has a dimension of about 150 mm and a length of about 1800 to 2400 mm, and a groove 1 a is provided over the entire length of the long side 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
The floor surface is smoothed by applying a leveling material (not shown) with a thickness of about several mm on the surface of the LC panel 1 or laying a particle board. However, since such a floor structure is constructed by a wet construction method, not only is it troublesome, but also it is not possible to perform other work on the floor until the material is dried, so that the construction period becomes long.

As shown in FIG. 6, the floor structure of a wooden building is usually 910 × 182 on a wooden joist 7 which is mounted on a wooden beam 6 at right angles and in parallel at intervals of about 303 mm.
A base plywood 8 having a thickness of 0 mm and a thickness of 9 to 12 mm is nailed.
Thereafter, thin ALC panels 11 having a thickness of 35 to 50 mm are laid in parallel on this, and a plywood 9 is laid thereon. Then, from the surface of the plywood 9, the ALC panel 11
And a screw 19 which penetrates the base plywood 8 and is fixed to the joist 7, and a flooring material or a carpet (not shown) is laid on the surface to finish the floor surface.

[0005] However, this method has a problem that it takes a lot of time and labor to construct and that the thin ALC panel 11 is easily damaged during handling and construction. As another method, as described in Japanese Patent Application Laid-Open No. 8-151770, for example, a composite A is prepared by attaching a wood panel to the front side of a thin ALC panel and attaching a corrosion-resistant sheet to the back side.
There is also a method of directly screwing the LC panel to a wooden joist or beam. According to this method, the workability is good and the floor thickness can be reduced, but it cannot be used for steel beams.

As another floor composite panel, as described in Japanese Patent Application Laid-Open No. 8-53891, a plurality of wooden joists are arranged in parallel or a frame so that the outer shape of an ALC panel is about 900 mm in width and 3600 mm in length. A wooden plywood is mounted on a wooden frame, and a plurality of thin ALC panels are laid in parallel on this wooden plywood and fixed with screws. Furthermore, plywood, finishing materials, soundproofing materials, etc. are also installed on the ALC panel surface. Composite ALC panels for worn floors have also been proposed. This composite ALC
Since the panels are large, the number of construction steps can be reduced depending on the structure of the building. However, since the panels are large and heavy, handling properties are poor and processing on site is difficult.

[0007]

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional composite ALC panel for flooring, and is thin, but excellent in strength, fire resistance and workability, and can be used for beams of steel and wooden buildings. It is an object of the present invention to provide a structure of a floor structure that can be easily attached to a floor or a joist.

[0008]

In order to achieve the above object, a floor structure according to the present invention has a total width of 600 to 300 mm.
A composite ALC panel comprising an ALC panel having a thickness of 35 to 50 mm and a wooden board adhered to at least one entire surface of the ALC panel, and the wooden board extends over substantially the entire length of the composite ALC panel in the longitudinal direction. And at least one pair of wooden timbers fixed in parallel to each other, and at least one end of the wooden timber has a concave portion formed on a surface facing the wooden board. The fastener is fixed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The floor structure according to the present invention has a total width of 600 to 300 mm.
Then, at least one pair of wooden squares is attached to the wood board on one surface side of the composite ALC panel formed by pressing a wood board on the entire surface on both sides or the entire surface of the ALC panel having a thickness of 35 to 50 mm with an adhesive. The composite ALC panel is fixed in parallel over almost the entire length in the longitudinal direction, and is attached to a beam or a joist of a steel frame or a wooden building so that a wooden timber faces downward. It has rigidity and bending strength. If there are several types of modules having a total width of 300 mm, 450 mm, and 600 mm and a length of 1800 mm or more, the composite ALC panel can be widely applied as a floor structure of a steel frame or a wooden building, and has good handleability. .

If the total thickness of the composite ALC panel is set to 100 to 120 mm including the thickness of the wooden timber, the effective height of the room can be increased since the thickness of the floor does not increase, and the front side of the ALC panel ( By attaching a wooden board having a thickness of 9 to 12 mm to the entire surface (on the floor side), flooring such as flooring can be directly attached. Further, since at least a pair of wooden timbers are fixed to the back side (lower side) wood board, the bending strength is large, the interval between floor beams and joists can be increased, and materials and man-hours can be reduced.
Also, by appropriately changing the cross-sectional area of the wooden timber according to the length of the ALC panel, necessary strength and bending can be secured. Further, by adjusting the position of the wooden timber according to the structure of the skeleton, such as the position of the pillars in the building, the composite ALC panel can be easily processed and the floor can be constructed without reducing its strength.

[0011] Then, a mounting bracket such as an inazuma plate obtained by bending an iron plate fixed to the steel beam into a step shape is directly screwed to the wooden square member, or at least one end of the wooden square member faces the wooden board. A concave portion is formed in the surface to be fixed, a nut serving as a fastener is fixed to the concave portion, and a bolt penetrating a mounting bracket such as an inazuma plate fixed to the steel beam is screwed to the nut to form a floor structure. Since the body can be attached, attachment to the steel beam is easy. In the case of attaching to a wooden beam, it can be fixed by screws fixed to the wooden beam through the entire thickness of the floor structure. Further, if a fireproof material or the like is stuck on the back side of the floor structure, or a cushioning material or the like is stuck on the front surface side of the floor structure, fire resistance and soundproofing can be improved.

Next, the present invention will be described with reference to the accompanying drawings. FIG. 1 is a rear perspective view of one embodiment of the floor structure of the present invention, FIG. 2 is a side view showing another embodiment of the present invention, and FIG. 3 is a diagram in which the floor structure of FIG. FIG. 4 is a partially cutaway longitudinal sectional view showing a situation where the floor structure of FIG. 2 is attached to a wooden beam. First, the composite ALC panel 10 of FIG.
An ALC panel 11 having the same outer shape and a thickness of 37 mm is attached to the upper surface of a wooden plywood 12 having a thickness of 20 mm and a thickness of 9 mm, and a plywood 13 similar to the plywood 12 is attached to the surface of the ALC panel 11 to form an integrated structure. Things.

Further, the composite AL constructed as described above
75 mm in width on the back side of the plywood 12 of the C panel 10,
Two wooden timbers 14 having a thickness of 60 mm and a length of 1820 mm
Is 70 mm from the long side of the composite ALC panel 10
It is nailed in parallel so that it is located inside. Further, a concave portion 14a is formed in a portion facing the plywood 12 near both ends of the wooden square bar 14, and a nut 15 as a fastener is embedded and fixed in the concave portion 14a. To manufacture the composite ALC panel 10 as described above, the plywood 1 is manufactured at a factory.
2 is placed on a flat surface plate, an adhesive is applied to the surface thereof, then an ALC panel 11 is superimposed thereon, and an adhesive is further applied to the surface thereof, and then a plywood 13 is superimposed. By pressing the upper surface with a predetermined pressure for a certain time, the contact surfaces of the three members are completely bonded and integrated.

Thereafter, a concave portion 14a is formed in advance, and a nut 15 is buried in the concave portion, and the fixed wooden bar 14 is attached to the composite A.
The floor structure is completed by nailing the LC panel 10 at a desired position. On the other hand, a floor structure according to another embodiment shown in FIG. 2 includes an ALC panel 21 and a plywood 22 attached to both surfaces thereof,
23 has a total width of 300 m.
m, the width of the wooden bar 24 is 50 mm, and the structure is the same as the floor structure shown in FIG. 1 except that the concave portion and the nut are not embedded in the concave portion. Although not shown, the plywood may be on only one surface side (that is, the lower surface side in the mounted state), and the thickness and dimensions of the wooden timber may be appropriately selected according to the specifications of the building, and may be as required. A soundproof sheet, cushioning material, flooring material, refractory material, or the like may be attached to the surface of the composite ALC panel.

In order to form the floor surface by attaching the floor structure to a steel beam of a building, first, a bolt 17 penetrating one side of a progression plate 16 is embedded and fixed in a concave portion 14a of a wooden square member 14. It is temporarily screwed to the nut 15 that has been set. Then, as shown in FIG. 3, the steel beams 2 are arranged at both ends in the longitudinal direction of the floor structure at intervals of 1820 mm.
, The upper flange 2a of the steel beam 2 is clamped by the progress plate 16, and the bolt 17 is tightened (see the right side of FIG. 3). Then, when the floor structures are sequentially laid, a soundproof sheet, a cushioning material, a flooring material, a carpet, and the like may be applied to the surface as needed.

In the embodiment shown on the right side of FIGS. 1 and 3, an example is shown in which the nut 15 is embedded and fixed in the recess 14a and screwed with the bolt 17, but the head of the bolt as a fastening tool is fitted in the recess 14a. For a floor having a composite ALC panel 20 as shown in FIG. 2 in which the nut is not embedded in the wooden square bar 14 and a nut is screwed to the tip of the protruding bolt. In the case of a structural body, one side of the inazuma plate 16a may be directly screwed to the wooden square member 14 with a screw 19 like a composite ALC panel 10a shown on the left side of FIG.

When a floor structure having the composite ALC panel 20 is attached to a wooden beam 18 of a wooden building to form a floor, both ends of the floor structure in the longitudinal direction are connected to the wooden beam 18. Then, it may be suspended from the surface of the composite ALC panel 20 and penetrated through the wooden bar 14 and screwed to the wooden beam 18 (see FIG. 4). The subsequent finishing work is the same as the previous example.

[0018]

As described above, according to the present invention, although the thickness is small and the external shape is small, the weight is light, but the rigidity and bending strength are high because the plywood is adhered and the wooden square is attached. In addition, the distance between floor beams and joists can be increased, and materials and man-hours can be reduced. Further, if the cross-sectional area of the wooden bar is changed according to the length of the composite ALC panel, necessary strength and bending can be secured. Further, by adjusting the position of the wooden timber according to the structure of the skeleton, such as the position of the pillars in the building, the composite ALC panel can be easily processed and the floor can be constructed without reducing its strength.

The width of the composite ALC panel is 300 m.
If there are several types of modules having a length of m, 450 mm, 600 mm and a length of 1800 mm or more, they can be widely applied as floor structures for steel frames and wooden buildings, and have good handling properties. In addition, the total thickness is 100-
If it is 120 mm, the effective height in the room can be increased because the thickness of the floor does not increase. Furthermore, if a wooden board having a thickness of 9 to 12 mm is attached to the entire surface of the ALC panel, flooring such as flooring can be directly attached. In addition, if a nut is fixed to a concave portion formed at a portion facing the wooden board at at least one end of the wooden timber, a mounting metal such as an inazuma plate obtained by bending an iron plate into a step shape is screwed with a bolt or the like. Since it can be attached, it can be easily attached to a steel beam.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of an embodiment of a floor structure according to the present invention.

FIG. 2 is a side view showing another embodiment of the present invention.

3 is a partially cutaway longitudinal sectional view showing a situation where the floor structure of FIG. 1 is attached to a steel beam.

4 is a partially cutaway longitudinal sectional view showing a state where the floor structure of FIG. 2 is attached to a wooden beam.

FIG. 5 is a partially cutaway perspective view for explaining a conventional steel floor structure.

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

[Explanation of symbols]

 2, 18 beams 2a Upper flange 10, 10a, 20 Composite ALC panel 11, 21 ALC panel 12, 13, 22, 23 Plywood 14, 24 Wooden timber 14a Depression 15 Nut 16, 16a Inazuma plate 17 Bolt 18 Beam 19 Screw

Claims (2)

[Claims] 1. A total width of 600 to 300 mm and a thickness of 35 mm.
Composite A comprising an ALC panel of about 50 mm and a wood board adhered to at least one entire surface of the ALC panel
A floor structure comprising: an LC panel; and at least one pair of wooden square members fixed to the wooden board in parallel over substantially the entire length of the composite ALC panel in a longitudinal direction. 2. The floor structure according to claim 1, wherein a fastener is fixed to a concave portion formed on a surface facing the wooden board at at least one end of the wooden timber. body.