JPS6134546B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method of constructing a floating floor for an apartment building in which the floor slab is made of reinforced concrete.

Conventionally, in apartment buildings where floor slabs are made of reinforced concrete, floor slabs are used as a means of blocking impact sound (noise) generated on the upper floors from propagating to the lower floors through the floor slabs and walls. It has a floating floor structure.

Conventionally, the construction method for the floating floor was to first apply mortar to the floor slab surface, eliminate sharp protrusions and unevenness (approximately 5 mm or more) on the slab surface, and create a uniform slab surface. The fibrous molded boards are laid against each other so that there are no gaps, and then covered with a waterproof membrane such as polyethylene sheet or asphalt roofing. Mortar is poured onto the waterproof membrane and leveled evenly, so that the mortar layer After hardening,
A construction method is known in which a surface board (finishing material) is laid on top of the floor slab, but this construction method requires surface flattening with mortar to adjust the unevenness of the floor slab surface. sex)
In addition, when pouring mortar, it is necessary to place a thick plate or the like in order to prevent the fiber molded plate from caving in or being damaged due to the load. It requires smoothing work, it is difficult to achieve uniformity, and finishing material cannot be laid until the mortar is completely dry (it takes about two weeks for mortar to dry and harden).

As a method to eliminate the disadvantages of the above-mentioned floating floor construction method, the floating floor material is held at a height position where a gap remains between it and the floor slab surface by screw shaft members that are threaded through it, and the screws are A method has been proposed in which the height of the flooring material is adjusted by rotating a member, and then a fluid filler is injected into the void portion through an injection hole drilled in the flooring material and then hardened.

According to this construction method, the drawbacks of the construction method described above are eliminated, but it is not possible to obtain a floating floor that satisfies all of the sound insulation, heat insulation, and buffering properties that are particularly required for multifamily housing buildings. do not have.

This invention was made in order to eliminate the drawbacks of the conventional floating floor construction method described above, and is a method of floating floor construction that reliably blocks the noise generated in the reinforced concrete floor slab from propagating to the lower floor. The main objective is to provide a floating floor construction method that not only simplifies construction and shortens the construction period, but also ensures that a floating floor with excellent sound insulation, heat insulation, and cushioning properties can be obtained. .

The floating floor construction method according to the present invention uses, as a floating floor material, a single plate-like laminated body made by overlapping and bonding fibrous cushioning material made by compression molding fibers into a thick plate shape on the back side of a surface material, This laminated body is held at a height position where a gap remains between it and the floor slab surface by a screw shaft member screwed through the laminated body, and the screw shaft member is rotated from the surface side of the laminated body. , adjust the height to be the same as the height of the adjacent laminate unit, inject fluid filler into the gap between the laminate unit and the floor slab surface through the injection hole drilled in the laminate unit, and fill a part of it. It is characterized by being dipped into the back side of the fibrous cushioning material and hardened.

Hereinafter, the method of the present invention will be explained in detail based on the drawings showing an example of its implementation.

In the drawing, A is a plate-shaped laminated unit used for constructing a floating floor, 1 is a surface material constituting it, and 2 is a fibrous cushioning material. The surface material 1 may be any material as long as it has thickness accuracy, impact resistance, heat insulation, and concentrated load resistance, such as particle board (wood chips bonded together with a binder),
Hard fiberboard, calcium silicate board, etc. can be used.

The fibrous cushioning material 2 is made by arranging inorganic fibers such as rock wool or glass wool in a certain direction, adding a binder, and heating and compressing them to form a thick plate. They are placed one on top of the other and bonded with adhesive 3. A waterproof layer 4 made of a waterproofing agent is applied to the bottom surface of the cushioning material 2 bonded to the surface material 1.

In the laminated unit A laminated as described above, shaft holes 5 penetrating vertically are bored at a plurality of locations, and a flanged nut 6 is embedded in each shaft hole 5,
A screw shaft member 7 is screwed onto it. The flanged nut 6 is inserted into the fibrous cushioning material 2 before bonding the surface plate 1 and the fibrous cushioning material 2, and is screwed into the fibrous cushioning material 2 through the hole 6b of the flange 6a with a wood screw 8. It is designed to be fixed in place and then buried and fixed by overlapping the surface material 1.

A recess 10 into which a cap 9 is fitted for closing the shaft hole 5 is formed in the surface portion of the surface material 1. In addition, an injection hole 11 penetrating vertically is formed in the laminated unit A, and a cap 1 for closing the injection hole 11 is provided on the surface portion of the surface plate 1.
Two fitting recesses 13 are formed. Further, in the side surface of the surface material 1 forming the laminated unit A, a groove 1a is formed into which a "yatoizane" 14, which is a joint material, is fitted in the construction described later. The screw shaft member 7 has a screwdriver insertion groove 7a on its upper end surface, and a rubber piece 7b is attached to its lower end.

Therefore, in order to construct a floating floor using the above-mentioned plate-like laminated unit A, first, the walls and pillars of the building are
Marking is applied to serve as a reference for the floor finish height, and the laminated unit A is held on the floor slab 15 by the screw shaft member 7 screwed into the nut 6 in the shaft hole 5, and then Turn the screw shaft member 7 with a screwdriver inserted into the shaft hole 5 from the surface of the laminated unit A, and adjust the level so that the top surface of the surface material 1 of the laminated unit A is aligned with the position of the floor finish reference black mentioned above, and then "Yatoizane" 14 is fitted into the groove 1a of the butt surface of the laminated unit A to firmly connect the surface materials, and then from the injection port 11 of the laminated unit A, between the laminated unit and the floor slab surface. Fluid plaster 1 is placed in the void of
6 is injected and filled so that a part of it is immersed in the back side of the fibrous cushioning material 2, and after the filling plaster has hardened, the rock wool filling material 1 is injected into the injection port 11.
7, and the caps 12 and 9 are fitted into the surface recess 13 of the inlet 11 and the surface recess 10 of the shaft hole 5, respectively, and closed, completing construction of the floating floor. After that, carpet or tatami mats are laid over the floating floor, which is made up of single layers, to form the floor interior.

The filler for injection has fluidity at the time of injection,
As long as it hardens after that, it is not limited to the above-mentioned plaster, but any material such as cement mortar, resin mortar, hard polyurethane foam, etc. can be selected and used.

As described above, according to the present invention, as a floating floor material, a single laminated plate-like material is formed by overlapping and bonding a fibrous cushioning material made by compression-molding fibers into a thick plate on the back side of a surface material. Using this laminated single unit,
A screw shaft member that is threaded through it is held at a height position that leaves a gap between it and the floor slab surface, and the screw shaft member is rotated from the surface side of the laminated single body to form an adjacent laminated single piece. The fluid filler is adjusted to the same level as the height of the fibrous cushioning material, and the fluid filler is injected and filled into the gap between the laminate and the floor slab surface through the injection hole drilled in the laminate, and a part of it is poured into the fibrous cushioning material. Since it is cured by dipping the back side of the resin, the following excellent effects can be obtained.

That is, in this invention, as in the conventional construction method described above, the work of pouring the filler is performed last, so that continuous work is possible and the construction period can be significantly shortened.

In addition, to flatten the floor surface using single laminate units used as floating flooring, the level between adjacent laminate units is adjusted by rotating the height adjustment screw shaft that is threaded through the single laminate unit. Therefore, the unevenness of the floor slab does not pose any problem, and the floor surface can be flattened quickly and accurately.

In addition, the height adjusting screw shaft member is not only effective in flattening the floor surface, but also serves as a support material against loads, pressure, impact, etc. applied to the floor surface, so it is effective against continuous flow. When injecting the fluid filler, not only is there an advantage that the worker can work while standing on the laminated body, but also the lower end of the height adjusting screw shaft member is connected to the floor slab due to the fluid filler. Since it is fixed in an upright position, it acts as an anchor material against vibrations caused by earthquakes, prevents peeling of the laminate due to misalignment between the laminate and the filler, and prevents the separation of the laminate from each other. It has a remarkable effect on preventing damage to the laminated unit due to misalignment.

In particular, according to this invention, as a floating flooring material,
Since we use a single plate-like laminate made by laminating and bonding fibrous cushioning material made by compression-molding fibers into thick plates on the back side of the surface material, noise generated on the floor slab can be prevented from propagating to the lower floor. In addition, heat conduction can be effectively prevented by the fibrous cushioning material forming the laminated body.

In addition, according to the use of the laminated single body, a part of the injected fluid filler is immersed into the back side of the fibrous cushioning material and hardened, and the two are physically integrated in the immersed and hardened part. Since they are connected, it is possible to completely eliminate the disadvantage that the floating floor material vibrates due to the vibrations on the floor and the sound propagates downstairs.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the main part of the floating floor constructed on the floor slab, Figure 2 is an enlarged longitudinal cross-sectional view taken along the X-X line, Figure 3 is a perspective view of the flanged nut, and Figure 4 is the screw shaft. It is a perspective view of a member. A...Single laminate, 1...Surface material, 2...Buffer material, 3...Adhesive, 4...Waterproof layer, 5...Shaft hole,
6... Flammed nut, 7... Screw shaft member, 8...
Wood screw, 9...cap, 10...recess, 11...
...Injection hole, 12...Cap, 13...Recess, 1
4... Yatoizane, 15... Floor slab, 16...
Fluid filler.

Claims (1)

[Claims] 1. As a floating floor material, a plate-shaped laminate is used on the back side of the surface material, which is made by laminating and bonding fiber cushioning material made of fibers compression-molded into thick plates, and this laminate is screwed through it. Due to the screw shaft member,
Hold the screw shaft member at a height that leaves a gap between it and the floor slab surface, rotate the screw shaft member from the surface side of the laminate unit, adjust it to the same level as the height of the adjacent laminate unit, and then remove the laminate unit. A fluid filler is injected and filled into the gap between the laminated unit and the floor slab surface through an injection hole drilled in the hole, and a part of the filler is immersed into the back side of the fibrous cushioning material and hardened. Features a floating floor construction method.