JPS63210358A - Floor execution of concrete building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of constructing a floor in a concrete building using a floor finishing board and imparting heat insulation properties.

[Prior art]

Conventionally, the method of constructing a floor with floorboards made of wood-based materials such as parquet on concrete slabs is to install floorboards made of wood-based materials such as parquet on top of a plurality of large pull-outs installed at intervals on the concrete slab. A large number of joists extending in the direction
A floor construction method is known in which floorboards are erected and fixed at intervals in the longitudinal direction, and floorboards are erected across each joist and fixed with nails.

[Problem that the invention seeks to solve]

However, in the case of floors constructed using the conventional floor construction method, the floorboards are susceptible to deformation due to bending and deformation when a moving load is applied due to human walking, etc., and the floorboards are susceptible to deterioration, and drying shrinkage causes gaps between the assembled members. This tends to cause squeaks and floor noises, and it also has poor insulation, sound absorption, and sound insulation properties, and floating concrete slabs to improve the sound insulation of the floor is uneconomical and reduces the weight of the building. The problem arises that it becomes heavier.

[Purpose and structure of the invention]

The purpose of this invention is to provide a floor construction method for concrete buildings that can advantageously solve the above-mentioned problems. The wood-cement bonding board 2 is placed on the concrete slab 3 directly or through the mortar layer 4, and the JI waterfall wood 5 is fitted and fixed in the groove 1 of the wood-cement bonding board 2, and the 41 A concrete construction characterized in that a tree 5 is fixed to a slab concrete 1-toro by an anchor 6, and then a floor finishing board 7 placed over the top surfaces of the wood-cement bonding board 2 and pure water 5 is fixed to the sacred tree 5. It's in the floor construction method.

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

FIGS. 8 and 9 show a wood-cement bonded board having grooves and water/air vents used in an embodiment of the present invention, in which the wood-cement bonded board 2 is provided at both ends and in the middle in the width direction. Grooves 1 extending straight and parallel to each other over the entire length of the board are provided, and between the grooves 1 in the wood-cement bonding board 2 a large number of small-diameter water and air vent holes 8 are provided, and the wood-cement bonding board 2 and the groove 1 are formed by a mold, and the water air vent hole 8
are drilled, for example, by a drill.

Next, a first embodiment of the present invention will be described with reference to the drawings.

First, as shown in Figure 1, when a slab concrete filter is placed and the rough-finished top surface of the slab concrete A is almost at the specified height, immediately a large number of wood cement By placing the bonding plates 2 side by side and then hitting the wood-cement bonding plates 2 with a small force with a hammer or by applying vibrations to the wood-cement bonding plates 2 with a vibrator, excess water and moisture in the concrete slab 6 can be removed. The remaining air between the surface of the concrete slab 3 and the back surface of the wood-cement bonding board 20 is
The water is discharged from the air vent hole 8 of the wood-cement bonding board 2.

Next, as shown in FIGS. 2 and 6, pure water 5 is fitted into the groove 1 in the middle of the wood-cement bonding board 2 and the groove 1 in the opposite end of the adjacent wood-cement bonding board 2. After being fixed with adhesive, a plurality of anchor insertion holes 9 are drilled into the overlapping parts of each model 5 and the wood-cement bonding board 2.
are drilled at intervals in the longitudinal direction of the wood, and then anchors 6 with anchor screws 10 are driven and inserted across the pure water 5, the wood-cement bonding board 2, and the concrete slab B, and the head 11 of the anchor B is inserted. is engaged with the wood cement bonding board 2.

Note that the anchor 6 is driven in a position where it does not hit the reinforcing bars of the concrete slab B. Furthermore, when the anchor 6 is driven, it is necessary to prevent the plastic consot tubes and electric wires buried in the slab concrete B from being damaged by the anchor B, and for this reason, when the anchor 6 is made of steel. is wood cement bonded board 2
The protruding length of the anchor 6 from the anchor 6 is set to a length that does not reach the consot tube or electric wire, for example, within 4 lines, and when the anchor 6 is made of a flexible plastic with high tensile strength, such as carbon fiber-containing resin, The protruding length of the anchor 6 from the wood-cement bonding board 2 is set within about 6 crn.

Next, after the slab concrete 6 has hardened, a joint material such as mortar is filled into the joint gap between the adjacent wood cement bonding plates 2, and then, as shown in FIG. Floor finishing boards 7 made of wooden flooring blocks such as parquet are scattered over the upper surface of 5,
The end of the floor finishing board 7 is fixed to the wood 5 with nails 12 or fixed to the pure water 5 with adhesive and nails 12,
And, the same threaded part of the end of the adjacent floor finishing board 7 is
Interlock on tree 5.

Next, a second embodiment of the invention will be described with reference to the drawings.

First, as shown in FIG. 5, after the poured concrete slab 6 has hardened, a mortar layer 4 for adhesive fixation with a thickness of about 15 Th is applied on top of the concrete slab 6, and then on top of the mortar rflI4. Place the wood-cement bonding board 2 on the board, adjust the lateral position and upper surface level of the wood-cement bonding board 2, and place a plurality of spacers between the wood-cement bonding board 2 and the concrete slab 6 as necessary. 16 is interposed to prevent the level of the wood-cement bonding board 2 from going out of order. Next, Figures 6 and 7
As shown in the figure, the groove 1 in the middle part of the wood-cement bonding board 2
# of the opposite ends of the inner and adjacent wood-cement bonding boards 2
A branch 5 is fitted into the inside 1 and fixed with adhesive.

The fixing of the branches 5 to the wood-cement bonding board 2 with an adhesive may be done before the mortar layer 4 is cured or after the mortar layer 4 is cured.

Next, after the mortar layer 4 has hardened and dried (after approximately 5 days have passed), multiple anchor insertion holes are drilled at appropriate intervals over each branch 5, wood cement bonding board 2, mortar layer 4, and slab concrete B. to drill. In this case, in order to prevent conduit tubes, electric wires, etc. buried in the slab concrete 6 from being damaged by the drill, the drilling depth from the top surface of the slab concrete B is set within the 4cWL area.

Next, as shown in FIG. 7, adhesive 14 is applied to the anchor screw 10 of the anchor 6, and the anchor 6 is press-fitted into the hole in the branch tree 5, the wood-cement bonding board 2, the mortar layer 4, and the concrete slab 3. Fix it. Then the first
In the same manner as in the embodiment, a floor finishing board 7 is laid on the top surface of the wood-cement bonding board 2 and the branch 5, and the floor finishing board 7 is fixed to the branch 5.

If construction is to be carried out in a hurry, adjust the level of the wood-cement bonding board 2, insert a spacer between the wood-cement bonding board 2 and the concrete slab 6, and then remove the concrete nails from the wood-cement bonding board 2. The wood-cement bonding board 2 is fixed to the slab concrete A by pouring it into the slab concrete A to a depth of 1, and after the mortar layer 4 has hardened, drill the υ anchor insertion hole as described above. What is necessary is to drill a hole and install the anchor 6.

In the case of the second embodiment, the anchor screw 10 in the anchor B is tapered, and the anchor sleeve with the expandable slit is fitted to the part of the tip/R of the anchor screw 10, and then the anchor sleeve with the slit is attached to the slab concrete 6. The branch 5 may be press-fitted into the hole and then tightened by rotating the branch 5 in the tightening direction.

When carrying out this invention, the wood-cement-bonded board 2 may be a wood-cement-bonded board or a wood-cement-bonded board instead of the wood fiber cement plywood. The wood fiber-cement bonded board and the wood-wool cement bonded board are heat-insulating boards that have hygroscopic and sound-absorbing properties, and the surfaces of these boards are rough, so their adhesion to the concrete slab 6 and the mortar layer 4 is reduced. can be increased.

In the case of wood fiber-cement bonded boards, the wood fiber pieces that are the material are arranged parallel to the board surface with a width above a certain μ and are bonded by cement, so compared to other wood-cement bonded boards, It has a high bending strength and bending elastic modulus, and retains trapped air between the wood fiber pieces that overlap each other, so it has better insulation properties than other wood-cement bonded boards. When the bonding plate is brought into contact with a concrete or mortar layer, since there is no penetration part in the plate thickness direction, it is possible to avoid deterioration of insulation properties due to mortar intrusion, and it also absorbs excess moisture in the concrete or mortar layer. Their strength can be increased.

The anchor 6 may have any structure other than the one shown in the figure, and if the wood-cement bonding board 2 having a large number of water and air vent holes 8 is used as in the embodiment described above, the anchor 6 may be of any structure other than the one shown in the figure. Excess moisture in concrete 3 or mortar layer 4 and wood cement bonding board 2 and concrete slab 3
Alternatively, since the air between the mortar layer 4 and the water vent hole 8 is discharged, the strength of the concrete slab 6 or the mortar layer 4 can be increased.

〔Effect of the invention〕

According to this invention, the wood-cement bonding board 2, which has linear grooves 1 on its upper surface, is placed directly on top of the concrete slab 6. or placed through the mortar layer 4, and the branches 5 are fitted and fixed in the grooves 1 of the wood-cement bonding board 2, and the branches 5 are fixed to the syslab concrete B by the anchors 6. , the long crosspieces 5 are connected to the anchors 6 to press the wood-cement bonding board 2 against the slab-concrete filter or the mortar layer 4 thereon. Since the floor finishing board 7, which is superimposed over the wood-cement bonding board 2 and the crosspieces 5, is fixed to the crosspieces 5, which can be firmly fixed so as not to peel off, and are firmly fixed by the anchors 6, The floor finishing board 7 can be firmly fixed so that it does not lift up and cause floor squeaking or creaking. Furthermore, since the wood-cement bonding board 2 has a specific gravity close to that of concrete, it can be placed on fresh concrete. It does not float even when placed, making it easy to adjust the level, and wood cement - bond: 1 go 1
Since the plate 2 has approximately the same amount of drying shrinkage as concrete, the peeling force due to the difference in the amount of drying shrinkage can be reduced. In addition, the wood-cement bonded board 2 has heat insulation, sound absorption, and sound insulation properties, so it is possible to easily construct a concrete building floor that has heat insulation, sound absorption, and sound insulation properties. Since cement, which is a fire-resistant material, is used as a binder, the fire resistance can be improved.Furthermore, the wood-cement bonding board 2 can be easily ground with a grinder, so it can be used for a large number of wood-cement bonding boards 2 laid out side by side. If there is a level mismatch, the top surface level of the wood-cement bonding board 2 can be easily adjusted by grinding, and furthermore,
Since the floor finishing board 7 is in full contact with the wood cement bonding board 2 and the crosspiece 5, when a person walks on the floor finishing board 7 or a heavy object is placed on the floor finishing board 7, the floor finishing board 7 7 is not bent and deformed, so that effects such as being able to reduce structural deterioration of the floor finishing board 7 can be obtained.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a vertical sectional side view showing a state in which a wood-cement bonding board is placed on a concrete slab before hardening, and FIG.
The figure is a vertical side view showing the state in which the crosspieces are fitted and fixed in the grooves of the wood-cement bonding board and the anchors are set. Figure 6 is an enlarged vertical side view of the anchor insertion part. Figure 4 is the completed concrete building. FIG. 5 to 7 show a second embodiment of the present invention, and FIG. 5 shows a state in which a wood-cement bonding plate is placed on a mortar layer before hardening placed on a concrete slab. FIG. 6 is a vertical side view showing a state in which the crosspieces are fitted and fixed in the grooves of the wood-cement bonding board and the anchors are set, and FIG. 7 is an enlarged vertical side view of the anchor insertion portion. FIG. 8 is a plan view of a wood-cement bonded board used in an embodiment of the present invention, and FIG. 9 is an enlarged sectional view taken along the line A--A in FIG. 8. In the figure, 1 is a wood cement bonding board, 6 is a concrete slab, 4 is a mortar layer, 5 is a crosspiece, 6 is an anchor, 7 is a floor finishing board, 8 is water/air [L, 10 is an anchor screw, 12 is a nail, 16 is a spacer, and 14 is an adhesive. Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] Wood-cement bonding board 2 with linear grooves 1 on the top surface
is placed on the concrete slab 3 directly or through the mortar layer 4, and the timbers 5 are fitted and fixed in the grooves 1 of the wood-cement bonding board 2, and the timbers 5 are attached to the slab by anchors 6. A method of constructing a floor for a concrete building, which comprises fixing the floor to concrete 3, and then fixing a floor finishing board 7 placed over the upper surfaces of the wood-cement bonding board 2 and the timber 5 to the timber 5.