JP3911501B2 - Floor construction method - Google Patents

Description

The present invention relates to a floor construction method for a double floor structure of a building structure such as an apartment.

  In recent years, daily noise has become a problem in apartment houses such as apartments and condominiums, and a double floor structure having a sound insulation effect has been attracting attention (for example, Patent Document 1). The double floor structure creates a space between the concrete slab (floor floor) and the floor panel by interposing a vibration-proof adjusting type support leg between the concrete slab (foundation floor) and the floor panel (particle board). It is intended to improve the effect.

  Hereinafter, the floor construction method of the conventional double floor structure is demonstrated using FIG. In the method of FIG. 5, the work for standing the partition 1 is performed before the floor construction work is performed.

  First, the joist 2 is fixed from the side with a nail or the like to the position of the required floor height of the base of the wall or partition 1, and the bundle 3 that supports it is placed between the concrete slab 4 and the joist 2 at an appropriate interval. Insert and fix. Next, vibration-proof adjusting type support legs 5 are arranged on the concrete slab 4 at a predetermined pitch, and the height of the floor panel placement surface 6 of the support legs 5 is aligned with the floor panel placement surface 7 of Tokita 2. In this way, the level of the support leg 5 is adjusted. Finally, the floor panel 8 is laid on the support leg 5 and the floor panel placement surfaces 6 and 7 of the joist 2 and the floor panel 8 is fixed to the joist 2 and the support leg 5 with nails or the like.

  Through the above steps, a double floor is constructed for each room partitioned by a partition. After the construction of the double floor, a wall material 9 such as a gypsum board is attached to the partition 1, and a floor material such as interior flooring (not shown) is laid on the floor panel 8.

  However, the conventional double floor structure floor construction method has the following problems. That is, when the walls and partitions are hard, such as concrete, the joists cannot be easily attached, and the height must be adjusted for each room partitioned by the partitions. It takes a lot of time and effort to adjust. Further, when the floor panel is fixed to the joist when fixed to the partition, vibration is transmitted through the floor panel, and floor impact sound is transmitted to the downstairs. In addition, as a result of long-term use, the bundle deforms due to moisture and rot, causing floor noise.

Therefore, in order to solve these problems and perform the construction efficiently, as shown in FIG. 6, a floor construction method in which a partition is erected after laying a double floor (hereinafter referred to as “floor advance construction method”). Is considered. According to this floor advance construction method, it is only necessary to attach the joist to the wall, so the floor height can be easily adjusted, the construction period can be shortened, and the cost can be reduced. Can be reduced. Further, according to the floor advance construction method, the worker can perform the partitioning work on the flat floor surface, so that the workability and safety can be improved.
JP 2001-279912 A

  However, since the conventional floor prior construction method shown in FIG. 6 is a structure in which the support legs 5 are arranged on the entire floor at a predetermined pitch and the floor panel 8 is placed, and the load is supported by points. As a result of the use, a problem arises that the floor of the part to which a load is applied such as the partition 1 or the furniture 10 placed near the partition sinks. Due to the distortion of the floor surface, the partition 1 moves up and down and rolls, which increases the possibility that the gypsum board 9 will crack. Furthermore, due to the distortion of the floor surface, the connecting portions such as the partition 1 and the door frame 11 rub against each other, and an abnormal noise is generated.

The present invention has been made in view of the above, to construct the floor prior method, support the load of the partition or the like, floor construction of a double floor structure that can be used for many years to maintain the level of the floor It aims to provide a method.

In order to solve such a problem, the floor construction method of the present invention is a floor construction method in which a partition is erected after laying a floor panel, and a plurality of pedestal rod-like leg portions screwed to the joists and the joists with bolts. A first step of disposing the joist unit comprising the following along all of the two lines to be erected in the orthogonal direction on the foundation floor, and fixing the base of the joist unit to the foundation floor. And a third step of arranging a plurality of support legs on the base floor surface at a predetermined interval, comprising two steps and a single leg portion with a vibration isolating base that is screwed to the backing plate with a bolt. And a fourth step of laying a floor panel on the joists of the joist unit and the support plate of the support leg, and a fifth step of erecting the partition immediately above the joist unit. .

  According to the present invention, when a double floor is constructed by a floor advance construction method, it has sufficient strength to support a load such as a partition and can maintain the level of the floor surface even when used for many years.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, when constructing the double floor of this Embodiment, the position where a partition is erected shall be predetermined by design.

  FIG. 1 is a perspective view showing a double floor structure according to an embodiment of the present invention. In the double floor structure according to the present embodiment, first, the joist 102 is fixed from the side with a nail or the like to the position of the required floor height of the wall 101, and the bundle 103 that supports it is placed at a concrete slab at an appropriate interval. Insert between 104 and the joist 102 and fix.

  Next, the adjustment-type joist unit 105 is arranged at a position where a heavy object such as a partition 106 is placed on the concrete slab 104, and the height of the floor panel mounting surface 107 of the joist unit 105 is set to the floor panel of the joist 102. The level is adjusted so as to align with the mounting surface 108. The joist unit 105 is disposed substantially in parallel with the partition 106 at least at all positions where the partition 106 is erected. Further, the joist units may be connected with nails or the like to improve load resistance.

  Next, vibration-proof adjusting type support legs 109 are arranged on the concrete slab 104 at a predetermined pitch, and the height of the floor panel placement surface 110 of the support legs 109 is set to the floor panel mounting of the joist 102 and the joist unit 105. The level is adjusted to align with the placement surfaces 107 and 108.

  Finally, the floor panel 111 is laid on the floor panel placement surfaces 107, 108, 110 of the joist 102, the joist unit 105 and the support leg 109, and the floor panel 111 is installed on the jojo 102, the joist unit 105 and the support leg 109. Fix with nails.

  A double floor is constructed by the above steps. In addition, after constructing the double floor, the partition 106 is erected on the floor panel 111 on the joist unit 105, a wall material 112 such as a plaster board is attached to the partition 106, and an interior (not shown) is provided on the floor panel 111. Flooring such as flooring is laid.

  FIG. 2 is a perspective view showing an example of a support leg used in the double floor structure according to the present embodiment. The support leg 109 is a rod-like leg portion 203 made of a support bolt 202 having a lower end fitted into a vibration isolation pedestal 201 made of an elastic material such as rubber, and a flat plate having a predetermined thickness and a nut (see FIG. (Not shown) and a receiving plate 205 having an insertion hole 204 fitted therein. The support leg 109 is assembled by screwing the upper part of the support bolt 202 of the rod-like leg 203 into the threaded part of the receiving plate 205 (the nut fitted in the insertion hole 204). The upper end surface of the support bolt 202 is provided with a minus groove 206 (may be a plus groove or a polygonal recessed portion), and a rod-like leg portion 203 is fitted into the groove 206 by fitting the tip of a rotating tool such as a screwdriver. The level of the floor panel mounting surface 110 can be adjusted by rotating the support bolt 202. Further, the floor panel 111 is placed on the floor panel placement surface 110 of the backing plate 205 during floor construction, and the backing plate 205 and the floor panel 111 are fixed with nails or the like.

  FIG. 3 is a perspective view of a joist unit used in the double floor structure according to the present embodiment. FIG. 4 is a cross-sectional view of the joist unit used in the double floor structure according to the present embodiment. The joist unit 105 includes a joist 301 having a horizontally long rectangular cross section made of wood or other material, and a plurality of (preferably three or more) rod-like leg portions 304 each comprising a support bolt 303 having a lower end fitted into a pedestal 302. Is done. In the joist 301, through holes 305 are formed substantially perpendicularly at a plurality of spaced locations on the floor panel mounting surface 108, and a countersunk nut 307 is fitted into the through hole 305 from the opposite surface 306 of the floor panel mounting surface 108. The plate portion 308 of the nut 307 is screwed to the joist 301. The joist unit 105 is assembled by screwing the upper portion of the support bolt 303 of the rod-like leg portion 304 into the screw portion of the joist 301 (the nut 307 fitted in the through hole 305). The upper end surface 309 of the support bolt 303 is provided with a minus groove (may be a plus groove or a polygonal recessed portion), and a tip of a rotary tool such as a screwdriver is fitted into the groove so that the rod-like leg portion 304 is fitted. The level of the floor panel placement surface 108 can be adjusted by rotating the support bolt 303. Further, the floor panel 111 is placed on the floor panel placement surface 108 of the joist 301 at the time of floor construction, and the joist 301 and the floor panel 111 are fixed with nails or the like.

  Here, since the joist unit 105 is required to have a load resistance, the thickness 310 of the joist 301 is made thicker than the thickness of the receiving plate 206 of the support leg 109, and the diameter of the support bolt 303 of the joist unit 105 is made larger. The support bolt 202 is made thicker.

  As described above, according to the present embodiment, the joist unit 105 having load resistance is arranged at a position where the weight of the partition 106 or the like is applied, and the supporting leg whose level can be easily adjusted is arranged at other positions. Thus, in the floor advance construction method, it is possible to construct a double floor having sufficient strength with respect to the weight of the partition or the like while leaving the advantage that the height of the floor surface can be easily adjusted.

  The material of the pedestal 302 of the rod-like leg 304 may be rubber having sufficient strength or may be made of metal. Further, in order to improve the shear resistance, the base 302 of the rod-like leg 304 may be fixed to the concrete slab 104 with a nail, an adhesive, or the like.

  In this embodiment, the case where the joist 102 is fixed to the wall 101 has been described. However, the present invention is not limited to this, and the joist unit 105 may be used instead of the jojo 102. Further, the joist unit 105 may be used at the boundary with an area that does not have a double floor structure such as a bathroom. However, if the double floor is constructed only by the joist unit 105 without using the support leg 109, level adjustment becomes difficult as compared with the present embodiment, and costs such as material costs increase.

  The present invention is suitable for use in a method for constructing a double floor of a building structure such as an apartment.

The perspective view of the double floor structure concerning one embodiment of the present invention The perspective view of the support leg used for the double floor structure which concerns on the said embodiment The perspective view of the joist unit used for the double floor structure which concerns on the said embodiment Sectional view of joist unit used for double floor structure according to the above embodiment Perspective view of conventional double floor structure Perspective view of double floor structure by conventional floor advance construction method

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Wall 102 Edge joist 103 Bundle 104 Concrete slab 105 joist unit 106 Partition 109 Support leg 111 Floor panel 201 Anti-vibration base 202 Support bolt 203 Rod-shaped leg 205 Receiving plate 301 joist 302 Base 303 Support bolt 304 Rod-shaped leg 307 Nut

Claims (1)

A floor construction method in which a partition is erected after laying a floor panel,
A joist unit composed of joists and a plurality of pedestal rod-like legs that are screwed to the joists with bolts is arranged on the foundation floor along all of the upright planned lines of the partition in two orthogonal directions. The first step;
A second step of fixing the base of the joist unit to the foundation floor;
A third step of disposing a plurality of support legs on the base floor surface at a predetermined interval, comprising a support plate and a single leg portion with a vibration isolating base seat screwed to the support plate with a bolt;
A fourth step of laying a floor panel on the joists of the joist unit and the support plates of the support legs;
A fifth step of standing the partition immediately above the joist unit;
The floor construction method characterized by comprising.

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