KR20080065332A - Access floor structure with high efficiency - Google Patents

Abstract

A double floor structure with high construction efficiency is provided to keep sound insulation efficiency and to improve constructability. A double floor structure with high construction efficiency, as a double floor unit installed on a floor slab(10), comprises a support(30) and an upper plate(50), a sound absorbing and thermal insulating member(40) installed between the slab and a double floor unit to supply thermal insulating efficiency and sound absorbing efficiency, a sound insulating and shock absorbing member(60) and a thermal insulating member(70) piled up between a wall(20) and the double floor unit in order to offer sound insulating efficiency and thermal insulating efficiency, a thermal insulating sheet(80) installed on the upper part of the thermal insulating member and the upper part of the upper plate of the double floor unit to offer thermal insulating efficiency, a heating mortar layer(90) formed on the upper part of the thermal insulating sheet and including a heat sink such as a heating pipe to function as a heating layer, and a flooring member(100) as a finishing member installed on the upper part of the heating mortar layer.

Description

Access floor structure with high efficiency

1 is a cross-sectional view of a double bottom structure according to the present invention.

2 is a perspective view of a double bottom structure according to the present invention.

Figure 3 is a graph comparing the floor impact sound for the double bottom structure and bare bottom and general double bottom structure according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: floor slab

20: wall

30: support

40: sound insulation

50: tops

60: sound insulation

70: insulation

80: insulation sheet

90: heating mortar layer

100: flooring

The present invention relates to a double bottom structure, and more particularly to a double bottom structure with high construction efficiency.

The double floor structure for reducing the floor impact sound is inconvenient to cut and arrange the top plate and the support in accordance with the site to be installed on the site.

Japanese Patent Laid-Open Publication No. 2005-97901 discloses a partition wall supporting structure of a double floor material, and Japanese Patent Laid-Open Publication No. 2000-73526 discloses a dry soundproof double floor, but a non-spaced structure and a configuration of a cushioning material are also described with the present invention. Different.

Korean Utility Model Registration No. 413533 discloses an interlayer sound insulation floor structure using magnesium board, and Korean Patent Publication No. 2005-17952 discloses a noise prevention method and apparatus for an apartment, a multi-storey multi-family apartment house or a multi-story building. It is not a double floor structure nor is it a spaced apart structure.

An object of the present invention is to provide a double-floor structure and construction method that can improve the workability while maintaining sound insulation performance.

In order to achieve the above object, the present invention provides a double bottom structure including a sound insulating buffer and a heat insulating material having a spaced apart structure from which a wall and a double floor unit are spaced apart from each other, and installed at a spaced portion between the wall and the double floor unit.

In the present invention, the double floor unit is preferably disposed so that the separation distance from the wall within 300 cm, the sound absorbing material and the heat insulating material is preferably laminated sequentially by the height of the double floor unit.

In the present invention, the sound insulation buffer of the separation part is preferably a polyolefin foam having a physical modulus of 10 MN / m 3 or less in consideration of sound insulation performance, natural foam rubber or synthetic foam rubber.

In the present invention, the insulation of the spaced apart portion is preferably one or two or more joints selected from expanded polystyrene (EPS), expanded polypropylene (EPP), expanded polyethylene, expanded polyvinylacetate, glass wool, rock wool, mineral wool and nonwoven fabric. .

Double floor structure according to the present invention may include a sound-absorbing insulating material installed between the floor slab and the double floor unit, a heat insulating sheet installed on the upper portion of the insulating material and the double bottom unit spaced apart, the heating mortar layer formed on the heat insulating sheet. have.

In the present invention, the sound-absorbing insulation material is preferably one or two or more joints selected from foamed polystyrene, foamed polypropylene, foamed polyethylene, foamed polyvinylacetate, glass wool, rock wool, mineral wool and nonwoven fabric, and prevents the top plate from resonating sound. For this reason, it is preferable to have an uneven form.

In addition, the present invention comprises the steps of arranging the double-floor unit on the floor slab so that the distance between the double-floor unit and the wall is within 300 cm; Sequentially stacking the sound absorbing material and insulation in the spaced portion between the wall and the double floor unit by the height of the double floor unit; And forming a heating mortar layer on the upper part of the insulation and the upper part of the double bottom unit of the separation part.

According to the present invention, after placing several types of double-floor units without the cutting and rearrangement of the top plate during construction in the field so that the separation distance from the wall surface is within 300 cm, the spaced parts are separated from the floor shock sound buffer material + insulation + finish. By finishing the finishing part with the structure of mortar, the workability can be improved while maintaining the sound insulation performance of the double bottom.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a double floor structure according to the present invention, which is a double floor unit installed on the floor slab 10 between the support 30 and the top plate 50, the slab 10 and the double floor unit. Sound absorbing insulation (40) installed in the sound insulation buffer 60 and the heat insulating material 70, which is sequentially stacked on the spaced portion between the wall 20 and the double-floor unit of the upper and double bottom unit of the insulation Insulation sheet 80 is installed on the top plate 50, the heating mortar layer 90 formed on the insulation sheet 80, the flooring material 100 as a finishing material.

The double floor unit is composed of a plurality of height adjustable support 30 and a plurality of top plates 50 deployed thereon, to form a floating floor structure to provide a space for the construction of wires, pipes and the like.

The support 30 may be formed of a pedestal composed of a top plate for supporting the top plate 50 and a bolt for controlling the height of the top plate 50 and a dustproof rubber.

Top plate 50 may be made of a material such as wood and inorganic, the thickness is about 10 to 30 mm.

The sound absorbing insulation 40 is provided between the double bottom unit and the slab 10 to provide insulation and sound absorption performance, and may be composed of a material having a polyolefin-based thermal conductivity of 0.038 W / m · K or less, such as EPS and EPP. And, the thickness is about 20 to 40 mm, may have a concave-convex shape in order to prevent the resonance sound ringing the top plate 50.

The sound insulation buffer 60 is installed on the slab 10 at the spaced apart portion to provide sound insulation performance of the spaced apart portion, and may be formed of foam foam or foamed rubber having a physical modulus of less than 10 MN / m 3, and the like. Is about 10 to 30 mm.

The heat insulating material 70 is laminated on the sound insulation buffer 60 at the spaced apart portion to provide heat insulation performance of the spaced apart portion, and may be composed of EPS (Expandable Polystyrene), and the thickness thereof is about 30 to 50 mm.

The insulation sheet 80 is installed on the upper portion of the insulating material 70 and the upper plate 50 of the double bottom unit to provide a thermal insulation performance, and may be composed of polyolefin foam and the like, the thickness is about 2 to 20 mm. .

The heating mortar layer 90 is formed on the insulating sheet 80 and serves as a heating layer including a heat radiator such as a heating pipe. The mortar layer 90 has a mixing ratio of cement and sand of about 1: 3 and a thickness of about 30 to 50 mm.

Flooring material 100 is a finishing material installed on the heating mortar layer 90, may be composed of a synthetic resin flooring material, such as vinyl flooring, wood-based flooring, such as ondol flooring, the thickness is about 5 to 20 mm.

2 is a perspective view of a double bottom structure according to the present invention, the construction method is as follows.

First, the double bottom unit is disposed on the bottom slab 10. At this time, some types of top plate 50 is arranged so that the separation distance between the double bottom unit and the wall 20 is within 300 cm without cutting and rearrangement. Between the slab 10 and the double bottom unit, a sound absorbing insulating material 40 may be installed.

Next, the sound insulation buffer 60 and the heat insulating material 70 are sequentially stacked by the height of the double bottom unit in the spaced portion between the wall 20 and the double bottom unit.

Next, the insulating sheet 80 is installed on the upper portion of the insulating material 70 and the double bottom unit of the separation part.

Next, after installing a heat radiator such as a heating pipe on the insulating sheet 80, the mortar is poured to form a heating mortar layer 90.

Finally, when the heating mortar layer 90 is cured, it finishes with the flooring 100.

3 is a graph comparing the floor impact sound for the double bottom structure and the bare bottom and the general double bottom structure according to the present invention, the second bar is the result of the double bottom structure having a separation structure according to the present invention, the wet is the separation site Means that it ends with mortar. As can be seen in Figure 3, the sound insulation performance of the double-floor structure according to the present invention does not have a large difference within 1dB compared to the general double-floor structure that is a non-spaced structure.

In particular, the double-floor structure according to the present invention has no cutting and rearrangement of the top plate, the construction time is reduced by more than 20%.

EXAMPLE

After installing EPS 30 mm thick as the support 30 and sound-absorbing heat insulating material 40 on the floor slab 10, the 20-mm-thick wood top plate 50 of the double bottom unit and the wall 20 was not cut and rearranged. Arranged so that the separation distance is within 300 cm.

Next, a double-floor unit having a thickness of 20 mm as a sound insulation buffer 60 and a foam foam having a dynamic modulus of 5 MN / m 3 and a 40-mm-thick EPS as a heat insulating material 70 in the spaced portion between the wall 20 and the double-floor unit. Laminated sequentially by the height of.

Next, a polyolefin foam having a thickness of 3 mm was installed as an insulating sheet 80 on the upper portion of the insulating material 70 and the upper part of the double bottom unit.

Next, after the heating pipe was piped on the insulating sheet 80, the mortar having a mixing ratio of cement and sand of 1: 3 was poured to form a heating mortar layer 90 having a thickness of 40 mm.

Finally, after the heating mortar layer 90 was cured, a 10 mm thick ondol floor was constructed as the flooring material 100.

According to the present invention, since there is no cutting and rearrangement of the double bottom top plate, construction time can be shortened and sound insulation performance can be maintained.

Claims (9)

The double floor structure includes a sound insulation buffer and a heat insulating material which are installed at a spaced portion between the wall and the double floor unit, and have a spaced apart structure. The double bottom structure according to claim 1, wherein the double bottom unit is arranged so that a distance from the wall is within 300 cm. The double-bottom structure according to claim 1, wherein the sound insulation buffer is a polyolefin foam, a natural foam rubber or a synthetic foam rubber having physical properties of 10 MN / m 3 or less. The double bottom structure according to claim 1, wherein the heat insulating material is at least one joined material selected from expanded polystyrene, expanded polypropylene, expanded polyethylene, expanded polyvinylacetate, glass wool, rock wool, mineral wool and nonwoven fabric. The double bottom structure according to claim 1, wherein the sound insulation buffer and the heat insulating material are sequentially stacked by the height of the double bottom unit. The double bottom structure of claim 1, further comprising: a sound absorbing insulation material disposed between the floor slab and the double floor unit, an insulation sheet installed on the upper part of the insulation layer and an upper part of the double floor unit, and a heating mortar layer formed on the insulation sheet. . 7. The double bottom structure according to claim 6, wherein the sound absorbing insulation material is at least one joined material selected from expanded polystyrene, expanded polypropylene, expanded polyethylene, expanded polyvinylacetate, glass wool, rock wool, mineral wool and nonwoven fabric. The double bottom structure according to claim 6, wherein the sound absorbing insulation has an uneven shape. Placing a double floor unit on the floor slab, such that a distance between the double floor unit and the wall is within 300 cm; Sequentially stacking the sound absorbing material and insulation in the spaced portion between the wall and the double floor unit by the height of the double floor unit; And Construction method of the double-floor structure comprising the step of forming a heating mortar layer on the upper portion of the insulation and the double-floor unit of the separation portion.

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