KR100722754B1 - High Rigidity Panel for Double Floor System Using Reinforcement Structure - Google Patents

Abstract

The present invention relates to a top plate for double floors, comprising a top plate, a bottom plate, a square reinforcement frame positioned between the top plate and the bottom plate, and a top plate for double floors made of at least one aluminum reinforcement disposed in the square reinforcement frame. to provide.

According to the present invention, by applying an aluminum reinforcing material having various rib structures or hollow structures to a double floor top plate, high rigidity and light weight of the top plate can be realized, and a more stable walking feeling and a wider support spacing interval can be ensured.

Double bottom, top plate, reinforcement, aluminum, rib, rigidity, walking feeling

Description

Stiffness reinforced sandwich panel for house access floor system}

1 is an exploded plan view of a top plate for a double floor according to the present invention,

2 is a structural diagram of a double bottom system to which the top plate according to the present invention is applied;

Figure 3a to 3l is an internal cross-sectional view of the aluminum reinforcement having a variety of structures applied to the top plate for a double floor of the present invention.

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

10: double bottom system 20: top plate

21: upper plate 22: lower plate

23: reinforcement frame 24: aluminum reinforcement

25: rib 26: hollow

27: groove 30: support

The present invention relates to a top plate of a dry double bottom system, and more particularly, to a top plate for a double bottom material to which high rigidity is applied by applying aluminum reinforcement having various rib structures or hollow structures.

In general, the upper plate 20 of the double-floor material on the support 30, which is arranged at regular intervals as shown in Figure 2, for the wire, plumbing, etc. in the interior space of a house, office, computer room, IT-related electronics factory The double-floor system 10 has been basically applied, which has been developed and has an application space equal to the height and distance of the support.

In the case of domestic double-floor products, relatively heavy weights are required by using solid parts such as steel support and inorganic top plate to withstand relatively heavy loads, and the construction of the support is 500 × 500 mm and 600 × 600 mm. Speed is not efficient and depends on the skill of the contractor.

In addition, in Japan, the double-floor system is applied to multi-unit houses, but the lower piping treatments and light floor impact sound reduction measures are the main focus, and the weight floor impact sound reduction performance, which is a concern in Korea, is minimal and construction for various building structures is performed. Depending on the responsiveness, the reduction performance may deteriorate. In addition, soft rubber is applied to maximize the floor impact sound reduction performance, which causes wandering when walking on the double floor, causing anxiety to those who are used to the normal hard cement mortar floor.

The conventional Japanese sound insulation double floor system has a structure in which a plurality of supports are arranged at regular intervals on a concrete floor, and a plurality of top plates are placed on the support. At this time, as the distance between each support becomes far, that is, the fewer the number of supports, the number of horizontal level adjustments of the floor is shortened, which not only improves the construction speed but also saves the support cost. However, as the distance between the supports increases, the stiffness and deflection problems occur when walking due to the deterioration of the top plate strength of the double flooring. Due to these constraints, the distance between the supports is up to 600 × 455 ㎜ up to now. It became.

In addition, the conventional top plate is made of a particle board (Particle Board) plate is detrimental to the impact of the floor impact, causing a load burden on the support due to the high weight of the top plate itself.

Gait feeling is an important item in the required physical properties of double floors. If the stiffness of the tops is weak, the tops will rum when walking and cause pedestrians to feel uneasy or unpleasant. In order to prevent this phenomenon, narrowing the spacing of supports may lead to an increase in cost as the number of supports increases.

The present invention is to solve the above problems of the prior art, an object of the present invention is to provide a top plate for a double floor material that can secure a high rigidity, lightweight, stable walking feeling and a wide spacing of the support.

In order to achieve the above object, the present invention provides a top plate, a bottom plate, a top plate for the double bottom made of a square reinforcement frame positioned between the top plate and the bottom plate, and at least one aluminum reinforcement disposed in the square reinforcement frame. to provide.

As the material of the upper plate, the lower plate and the reinforcing frame, a single material such as wood, inorganic, synthetic resin, steel, aluminum, or a composite material using two or more materials such as wood and aluminum can be used. However, considering the stiffness and ease of processing, the wood system is preferable.

Particularly preferred top and bottom plates are particle board, plywood, OSB (Oriented Strand Board), inorganic board, and the like, and more preferably, particle board is used.

Preferred materials for the reinforcement frame are aluminum reinforcement, plywood, OSB (Oriented Strand Board), wood, and the like, and more preferably, plywood or aluminum reinforcement having a multilayer structure is used. In particular, in the case of using the aluminum reinforcement as a reinforcing frame, all of the reinforcing material is made of aluminum reinforcing material is advantageous for high rigidity.

According to an embodiment of the present invention, the aluminum reinforcing material is an aluminum bar (empty bar) inside the hollow to reduce the weight of the upper plate, preferably one formed in parallel in the longitudinal direction therein for the high rigidity of the upper plate It has the above rib.

The preferred rib structure has a structure in which two triangular or semi-circular members extending in the width direction are connected to the center vertical member while facing up and down when the longitudinal section cut in the width direction is formed, or a long vertical member having a constant overall width. .

According to another embodiment of the present invention, the aluminum reinforcing material is an aluminum bar having a hollow structure, and the hollow structure has a single layer or a multilayer structure consisting of one or more elliptical, semicircular, circular or rectangular hollows.

According to another embodiment of the present invention, the aluminum reinforcement is an aluminum bar having one or more grooves on one surface thereof.                     

The total thickness of the upper plate composed of the upper plate, the lower plate and the reinforcing material is preferably 20 to 70 mm, and the thickness of the reinforcing frame and the aluminum reinforcing material is preferably 3 to 20 mm. If the thickness of the top plate and the reinforcement is too thin, it will not reach the desired strength. If it is too thick, its own load and material cost will increase.

According to an embodiment of the present invention, in order to achieve sound absorption or heat insulating performance and high rigidity of the upper plate, a sound absorbing material or a heat insulating material may be inserted into a space between the reinforcing frame and the aluminum reinforcing material.

As the sound absorbing material or the heat insulating material, synthetic fibers such as glass wool, rock wool, polyethylene terephthalate (PET), or expanded polystyrene (EPS), foamed urethane, foamed vinyl chloride (PVC), etc. Plastic foams are available.

In the present invention, by applying a high rigid sandwich top plate, the arrangement interval of the support can be at least 400 × 400 mm, preferably 600 × 600 mm or more, more preferably 600 × 600 mm to 1,200 × 1,800 mm, It is advantageous to absorb the impact sound, and it is possible to achieve the weight reduction of the top plate.

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

1 is an exploded plan view of a double floor top plate 20 according to an embodiment of the present invention, the top plate 20 is the upper plate 21 and the lower plate 22 and the reinforcement frame 23 disposed therebetween. It consists of. The reinforcement frame 23 has a rectangular frame shape that matches the edges of the upper plate 21 and the lower plate 22, and at least one aluminum reinforcement 24 is disposed in the inner space for high rigidity.

The aluminum reinforcing material 24 is an aluminum bar having a hollow or hollow structure 26 or a recess 27 on one surface to reduce the weight of the upper plate 20, and the high rigidity of the upper plate 20. For this purpose it preferably has one or more ribs 25 formed therein in parallel in the longitudinal direction.

In addition, between the reinforcing frame 23 and the aluminum reinforcing material 24, a sound absorbing-insulating material such as glass wool or expanded polystyrene (EPS) may be inserted to provide sound absorption and heat insulating effects.

2 illustrates a double bottom system to which the top plate according to the present invention is applied. The double bottom system 10 includes a plurality of supports 30 arranged at regular intervals and a top plate 20 mounted on the supports 30. It consists of.

In the present invention, by applying a high rigid sandwich top plate to the top plate 20 so that the arrangement interval between each support 30 is at least 400 × 400 mm or more, for example 600 × 600 mm, 900 × 900 mm, 800 × 1,200 mm, 1,200 × 1,200 mm, 1,200 × 1,800 mm can be arranged, so that the construction speed can be improved and the cost of using the support 30 can be reduced.

The support 30 used in the double bottom system 10 is largely classified into a head, a height adjusting bolt and a support rubber, and includes a nut inserted into the center of the plate and supports a plate of a double bottom. head; A bolt or cross is formed at an upper end thereof, and is coupled to the nut to adjust a height of the head; And a support rubber having a bolt support groove formed thereon to rotatably support the bolt.

In order to reduce vibration transmission while absorbing the impact force transmitted to the floor, the support rubber is preferably made of non-elastic rubber (Non-Elastic Rubber), the shape is cylindrical, favorable to the load to obtain a sense of stability It can be applied to various choices such as inverted trapezoidal shape, emboss structure to obtain floor impact sound reduction performance.

3A to 3L are internal cross-sectional views of aluminum reinforcing materials having various structures applied to the double floor top plate of the present invention, and are longitudinal cross-sectional views cut in the width direction of a long aluminum bar having a wider width than the thickness thereof.

3A-3G are aluminum reinforcements 24 that are hollow and have rib structures 25 therein in accordance with one embodiment of the present invention, wherein the aluminum reinforcements 24a of FIG. 3A extend wide in the width direction. Three triangular members are provided with ribs 25a having a structure connected to the central short vertical member while facing up and down. The aluminum reinforcement 24b of FIG. 3B does not have a rib structure. The aluminum reinforcing member 24c of FIG. 3C has a rib 25c formed of an elongated vertical member whose upper and lower portions extend slightly in the width direction to form a small triangular shape. The aluminum reinforcement 24d of FIG. 3D has a rib 25d made of an elongated vertical member with a constant overall width. The aluminum reinforcement 24e of FIG. 3E has one rib 25e having the same shape as that of FIG. 3D, and the aluminum reinforcement 24f of FIG. 3F has one rib 25f having the same shape as that of FIG. 3A. do. The aluminum reinforcement 24g of FIG. 3G is made of an elongated vertical member, and has ribs 25g whose upper and lower portions extend slightly in the width direction to form a small semicircular shape.

3H-3K illustrate an aluminum reinforcement 24 having a hollow structure 26 in accordance with another embodiment of the present invention, wherein the aluminum reinforcement 24h of FIG. 3H is an elliptical hollow 26h, and the aluminum reinforcement of FIG. 3I. 24i is a single-layered structure having a semicircular hollow 26i, and aluminum reinforcement 24j in FIG. 3J has a circular hollow 26j, and aluminum reinforcement 24k in FIG. 3K has a rectangular hollow 26k. It is a multilayer structure.

3L is an aluminum reinforcement 24L having a plurality of recesses 27L on one surface thereof according to another embodiment of the present invention.

For the high rigidity of the top plate 20, the shape of the rib 25 is preferably formed as a wide support portion, as shown in Figure 3a, the larger the number of ribs 25 is advantageous, but in consideration of manufacturing cost and manufacturing ease Design the rib 25 structure with the appropriate shape and number. In addition, the shape and number of the ribs 25 is not limited to Figs. 3a to 3g and can be variously changed. The shape and number of the hollow 26 and the recess 27 are also not limited to FIGS. 3H to 3L and can be variously changed.

EXAMPLE

As the upper plate 20 having the structure as shown in FIG. 1, a particle board as the upper plate 21 and the lower plate 22, a plywood as the reinforcement frame 23, and ribs having the dimensions (unit mm) shown in FIGS. 3E and 3F. After manufacturing the upper plate 20 having a thickness of 38 mm using four aluminum reinforcing materials 24e and 24f having the structures 25e and 25f, the amount of deflection was measured, and as shown in Table 1, only the plywood reinforcing material frame was found. It was found that the rigidity of the upper plate 20 was superior to the applied comparative example. At this time, the deflection property was measured by applying a weight of 100 kg to the center of the upper surface of the upper plate 20 with a pressing area of Ø80 and reading the scale of the measuring gauge installed at the bottom of the product.

Item Deflection amount (mm) Comparative example 2.85 Example 1 2.14 Example 2 1.98 Comparative Example: Plywood Stiffener Frame Only Example 1: Application of Aluminum Reinforcement of FIG. 3E Example 2: Application of Aluminum Reinforcement of FIG. 3F

In addition, by applying the high-strength top plate 20 in the double-bottom system 10 as shown in Figure 2 it was possible to arrange a wide interval of the support 30 to 800 × 1,200 mm, floor impact sound reduction performance (implementation standard KS F 2810-2 and evaluation standard KS F 2863-2) were also satisfactory as 45 ㏈ (A).

As described above, the present invention can obtain excellent rigidity by using aluminum reinforcement having a variety of rib structure or hollow structure than when using only the plywood reinforcement, thereby ensuring a more stable walking feeling and a wider support spacing interval have. In addition, while achieving a lighter weight of the top plate and wider support interval than the conventional double floor system, it is possible to realize the construction speed and cost reduction, and to obtain a satisfactory value of the floor impact sound reduction effect, and the reinforcement disposed on the top plate Inserting a sound absorbing material or a heat insulating material in the space between provides an effect that can improve the sound absorption or heat insulating performance.

Claims (12)

An upper plate, a lower plate, a top plate for the double bottom consisting of a rectangular reinforcement frame positioned between the top plate and the lower plate, and at least one aluminum reinforcement disposed in the rectangular reinforcement frame. According to claim 1, wherein the reinforcement frame is a double floor top plate, characterized in that made of aluminum reinforcement. The top plate of claim 2, wherein the aluminum reinforcement is an empty aluminum bar. The upper plate as claimed in claim 3, wherein the aluminum reinforcing material has one or more ribs therein. According to claim 4, The rib is a double floor material characterized in that when the longitudinal section cut in the width direction, the two triangular or semi-circular members extending in the width direction is connected to the vertical member in the center facing up and down Tops. The top plate of claim 4, wherein the rib is formed of an elongated vertical member having a constant overall width when viewed in a longitudinal section cut in the width direction. The top plate of claim 2, wherein the aluminum reinforcing material is an aluminum bar having a hollow structure. The top plate of claim 7, wherein the hollow structure is a single layer or a multilayer structure consisting of one or more elliptical, semicircular, circular or rectangular hollows. The top plate of claim 1, wherein the aluminum reinforcing material is an aluminum bar having at least one recess on one surface thereof. The top plate of claim 1, wherein the reinforcing frame is made of plywood, an oriented strand board (OSB) or wood. The top plate according to any one of claims 1 to 10, wherein the reinforcing frame and the aluminum reinforcing material have a thickness of 3 to 20 mm. The top plate according to any one of claims 1 to 10, wherein the top plate and the bottom plate are particle board, plywood, oriented strand board (OSB) or inorganic board.

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