KR100833656B1 - Floors structure of an apartment building using impact sound insulating material - Google Patents

Abstract

A floor structure of an apartment building is provided to prevent supports from being separated from a sound absorbing unit by fastening supports to the sound absorbing unit with a fastening board of a fastening member. A floor structure of an apartment building comprises a concrete slab(110), walls(120), a sound absorbing unit, gap forming members, heating pipes(150), and a finishing mortar layer(160). The gap forming members are installed between the wall and the sound absorbing unit in order to make spaces between the wall and the sound absorbing unit. The heating pipes and the finishing mortar layer are built on the top of the sound absorbing unit. The sound absorbing unit includes a form board, supports(213), and fastening members. The form board is a PVC board having mount grooves formed at bottom edges and pipe grooves connecting the mount grooves with one another. The support is made of silicon based rubber or neoprene based rubber, and installed in the mount groove formed on the bottom surface of the form board. The fastening member secures the support to the bottom surface of the form board. Each fastening member includes a fastening board(215-1), a pipe(215-3), and a holder.

Description

Floor structure of multi-family housing {FLOORS STRUCTURE OF AN APARTMENT BUILDING USING IMPACT SOUND INSULATING MATERIAL}

The present invention relates to an interfloor floor structure of a multi-family house, and in particular, to form a mortar hole at a position where the support is fixed among the floor noise prevention materials to increase the supporting force, and to increase the fixing force by attaching and fixing the support using a support plate. The floor structure of the multi-family house.

In general, a common construction method of two-story or more buildings such as apartments or multi-unit houses is to construct concrete slabs according to the number of floors of the building to complete the basic construction, and then arrange heating pipes on the concrete slabs at regular intervals. In the construction of gravel and cement mortar to a predetermined thickness.

As the slab that divides the floors and floors of multi-storey multi-storey buildings such as apartments and high-rise buildings is constructed of concrete only, the noise and shock generated inside the relevant floor of the building are directly lowered through the interlayer slabs. Is passed to.

In general, the impact sound applied to the building structure of apartment houses such as apartments and villas is transmitted to all directions by solid walking sound generated by people walking, opening and closing doors, moving objects, starting or stopping equipment, etc. This causes the surface of the building structure to vibrate, as well as being converted to air transmission sound, which is perceived as noise when it is heard by people around it.

For example, an impact such as a drop of an object is applied to the floor or a movement of a chair generates a solid transmission sound, and the solid transmission sound is transmitted to the lower floor through the floor slab.

Nowadays, the problem of floor noise has emerged seriously in apartment houses, and the government has announced that it will impose penalties for neighboring noise-induced acts by applying the neighboring crimes of the misdemeanor punishment law, and even struggling between neighbors with floor noise. As a result, regulations on housing construction standards have been strengthened and revised.

The regulations stipulate that the floor impact sound between floors should be less than 58 decibels (dB) and the weight impact sound should be less than 50 decibels (dB) or standard floor structure as determined and announced by the Minister of Construction and Transportation.

As such, conventional interlayer floor structures are proposed for minimizing and minimizing severely generated interlayer noise, which is based on a concrete slab 1, as shown in FIG. Lightweight foam concrete layer (2) is formed on the upper part, and heating pipe (3) and finishing mortar layer (4) are formed on the upper part, and the floor decorative layer (5) made of decorative materials such as monolium, solid wood, and tiles thereon (5). It is composed of

However, the interlayer floor structure above, but the lightweight foam concrete layer formed on the top of the concrete slab is responsible for attenuating the noise, the situation is not properly absorb or block the noise, such as light impact sound and heavy impact sound. Therefore, when the building is constructed with such a conventional floor structure, the noise and vibration caused by the impact applied to the floor, for example, by the children running around on the upper floor, are immediately transmitted to the lower floor. As a result, the comfort of the building is greatly reduced. Will be.

Due to this, in order to more effectively block noise or impact, a construction method for forming an interlayer noise preventing material between the concrete slab and lightweight foamed concrete has been developed.

Such an interlayer noise prevention material is usually made of a resin material, and provides a floating structure for forming an air layer by forming protrusions on the bottom surface, wherein the hardness of the interlayer noise prevention material and the protrusions is 40 or less or 80 or more.

However, since the hardness of the interlayer noise preventing material and the protrusion is about 20 to 40, it is very flexible and excellent in elasticity. In fact, the existing layer of noise preventing material is laid on the slab surface of the apartment house, and light weight foam concrete and finishing mortar are placed on it. When pressed against the weight of lightweight concrete and mortar (170kg per 1m ㅧ 1m), interlayer noise prevention material and projections are attached to the slab surface and air layer is not formed at all, and the function to block vibration and noise is lost. The reality is that it is very slight.

In addition, the air layer may be formed when the hardness of the interlayer noise preventing material and the protrusion is 80 or more, but the noise is secured by the air layer because the protrusion is attached to the slab surface and the noise is transmitted through the strong interlayer noise preventing material and the protrusion. It will cancel the blocking effect.

In addition, there are many kinds of floor noise prevention materials that are currently used, but there are many types, but all of them are laid on the concrete slab surface of the apartment house, so the noise blocking effect is not great. For example, the existing interlayer noise prevention material is mainly in the form of laying styrofoam insulation or other synthetic resin foam sheet on the slab surface of the multi-family house and placing lightweight foam concrete and mortar on it, there is a disadvantage that the noise is not blocked and transmitted.

In order to solve this problem, the applicant has filed an interlayer floor structure (domestic patent application No. 10-2007-0031119, filed date: March 29, 2007) by an applicant.

As shown in FIGS. 2a and 2b, the interlayer floor structure 100 of the multi-family house is an upper and lower inter-layer structure of the multi-family house, and aggregates having a specific gravity of 2.65 such as steel sand and steel gravel are cement pool (cement as water) Floor concrete slab (110) formed to be mixed so that the thickness is about 120 ~ 180mm; The space and space of the multi-family house and the wall 120, which is a structure that separates the structure; An interlayer noise preventing material (130) comprising a board (131), a support table (133), and an absorbing plate (135); The heating pipe 150 and the finishing mortar layer 160 are poured on the upper surface of the interlayer noise preventing material 130 and then removed after curing, between the interior and exterior walls 120 and the interlayer noise preventing material 130 and the interior and exterior walls. A gap forming member 140 forming a gap g between the 120 and the finishing mortar layer 160; A heating pipe 150; Finishing mortar layer 160; And a floor decoration layer 170.

However, the floor structure of the above-mentioned multi-family house becomes flexible as the physical properties change when heat is applied to the floor noise preventive material. In particular, the floor noise preventive material is interviewed with the excel hose of the heating boiler. This has a problem in that the groove is formed in the portion to which the support is bonded, and thus the support is inserted into the inside so that the floor is hesitant.

In addition, the floor structure of the inter-floor of the multi-family house is weak adhesive force by heat because the support is adhesively fixed to the bottom of the floor noise prevention material, there is another problem that the support falls off the bottom of the floor noise prevention material.

In addition, the interlayer floor structure of the multi-family house is a state in which the gap forming member is simply inserted to form a gap between the floor noise preventing material and the walls inside and outside the building. When stepping on the adjacent part, there is another problem that the interlayer noise prevention material is deformed because there is no structure supporting the interlayer noise prevention material in addition to the support.

The present invention is to solve the above problems, by connecting the support of the interlayer noise prevention material to the pipe to increase the support force to prevent the floor from sitting down by blocking the height deformation of the interlayer noise prevention material by heat and weight in advance. The purpose is to provide an interfloor floor structure of an MDU.

In addition, the present invention by fixing the support in a state that is fastened to the fixed plate that is bolted to the inter-layer noise prevention material when the support is attached to the inter-layer noise prevention material to prevent the support from being detached from the bottom of the inter-layer noise prevention material in advance. Another purpose is to provide an interlaminar floor structure.

In addition, the present invention provides an interlayer floor structure of a multi-family house to prevent the interlayer noise prevention material is deformed by the load of the operator during work by forming a step for fixing the end of the interlayer noise prevention material on one side of the gap forming member. There is a purpose.

According to the present invention for achieving the above object,

Floor concrete slabs; Walls inside and outside the building; The interlayer noise preventing material is formed of a PVC material, a plurality of mortar holes are formed therethrough, and are laminated on an upper surface of the floor concrete slab to form an air layer to block noise and vibration; A gap forming member inserted vertically between the inner and outer walls of the building and the interlayer noise preventing material to form a gap between the interlayer noise preventing material and the side wall, wherein a first step is formed at which an end of the interlayer noise preventing material is mounted; And a mortar layer for heating piping and finishing on the upper surface of the interlayer noise preventing material.

Here, the interlayer noise prevention material is formed of a PVC material in the form of a square plate, the foam board is formed with a recess groove in the bottom corner portion; A support formed of silicon-based or neoprene-based rubber and fixed to the seating groove while being a bottom of the foam board; And a fixing member for coupling the support to the bottom of the foam board.

Here, the foam board is further formed with a straight or oblique pipe groove to connect the mounting groove and the mounting groove on the bottom surface.

Here, the support is formed in any one form selected from a circle, a triangle, a square, a polygon, and is formed in a shape that becomes narrower with an inclined surface at the bottom to minimize the contact area with the floor concrete slab, A neoprene-based rubber absorbent plate is cut and attached to the bottom in the same form as the support.

Here, the fixing member is formed of a metal or PP material in the form of a disk, the fastening hole is formed in the center portion, the fixing plate having a plurality of first bolt holes; A pipe fixed to the fixing plate and inserted into the pipe groove; And a cylindrical shape formed of the same material as that of the fixing plate, wherein a second step is formed at the bottom of the outer side, and the upper step and the bottom body are formed by the second step, and the support is inserted therein to be fastened to the fastening hole of the fixing plate. Consisting of a holder.

Here, the pipe is U-shaped that is fixed to the bottom surface of the fixing plate or bolted by a fixing panel fastened to the upper surface of the seating protrusion is inserted into the seating protrusion formed to seat the pipe on the bottom of the fixing plate It is fixed to the bottom of the fixing plate by a clip of.

Here, the upper body is provided with a plurality of second bolt holes on the outer surface to fix the support by a bolt.

Here, the lower body is formed with a screw thread to be fastened to the fastening hole of the fixing plate on the outer circumference.

Here, the gap forming member is formed in the bottom of the first step of the height adjustment holes at equal intervals, the height adjustment bolt is coupled to the height adjustment hole.

Here, the gap-forming member is removed after the heating pipe and the finishing mortar layer is poured and cured on the upper surface of the interlayer noise preventing material to form a gap by the thickness thereof.

According to the floor structure of the floor of the apartment house of the present invention is configured as described above, by connecting the support of the floor noise prevention material to the pipe to increase the support force to block the height deformation of the floor noise prevention material by heat and weight in advance to prevent the floor from sitting down. It is possible to prevent the support from being separated from the bottom of the interlayer noise prevention material by fixing the support in the state of being fastened to the fixing plate which is bolted to the interlayer noise prevention material when attaching the support to the interlayer noise prevention material. In addition, by forming a step for fixing the end of the interlayer noise preventing material on one side of the gap forming member, it is possible to prevent the interlayer noise preventing material is deformed by the load of the operator during operation.

Hereinafter, the floor structure of the multi-family house according to the embodiment of the present invention will be described in detail with reference to FIGS. 5 to 7.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

Figure 3 is an exploded perspective view showing the configuration of the floor noise preventing material of the floor structure of the multi-family house according to the present invention, Figure 4 is a bottom view showing the configuration of the floor noise prevention material of the floor structure of the multi-family house according to the invention, 5 is an exploded perspective view showing a fixing member of the interlayer noise prevention material of the interlayer floor structure of the multi-family house according to the present invention, Figure 6 is a cross-sectional view showing the configuration of the interlayer noise prevention material of the inter-layer floor structure of the multi-family house according to the present invention. 7 is a perspective view showing another embodiment of the interlayer floor noise preventing material of the floor structure of the multi-family house according to the present invention, Figure 8 is a perspective view showing the configuration of a gap forming member of the inter-layer floor structure of the multi-family house according to the present invention; 9A and 9B are cross-sectional views illustrating an interlayer floor structure of a multi-family house according to the present invention. In FIG. 9A and FIG. 9B, the same code | symbol is attached | subjected about the structure similar to the conventional thing, and the duplication description is abbreviate | omitted.

3 to 9b, the interlayer floor structure 200 of a multi-unit house according to the present invention includes a floor concrete slab 110, a wall 120 inside and outside the building, an interlayer noise preventing material 210, and a gap. The forming member 220, the heating pipe 150, the finishing mortar layer 160 and the floor decoration layer 170 is composed of.

First, the interlayer noise preventing material 210 is formed of a foam board 211, a support 213, and a fixing member 215.

Foam board 211 is formed of a PVC material in the form of a square plate, has a hardness of 70 or more to absorb noise and impact and prevent deformation due to the weight of mortar, seating groove (211-1) in the bottom corner portion Is formed, the pipe groove 211-3 of a straight or oblique shape is formed to connect the seating groove 211-1 and the seating groove 211-1. Here, the diameter of the seating groove 211-1 of the foam board 211 is formed to a length such that the lower body (215-55) of the holder (215-5) is inserted. Here, the mixing ratio of the foam board 211 is 7 to 15 parts by weight of dioctyl phthalate (DOP), nitrile butadiene rubber (nitro butadine rubber :) with respect to 100 parts by weight of PVC resin as in the prior art. NBR) 5 to 12 parts by weight, zinc oxide 1.5 to 2.5 parts by weight, barium straight 2 to 5 parts by weight, calcium straight 2 to 5 parts by weight, stearin acid 0.5 to 1 part by weight, stabilizer (stabilizer (barum + zinc mixture)) 2 to 5 parts by weight, foaming agent (foaming agent) 2 to 8 parts by weight of the mixture is mixed with a heater to heat the sheet After the production and then foamed by using a pressure foam press machine, and a specific example of the mixing ratio of the PVC foam board having a hardness of 70 is shown in Table 1 below.
Composition Example 1 (kg) Example 2 (kg) Example 3 (kg) PVC resin 100 100 100 Dioctylphthalate 10 15 25 Nitrile butadiene rubber 5 10 20 Zinc oxide 2 2.5 2.5 Barium straight 3 4 5 Calcium straight 3 4 5 stearin One One One Stabilizer 2 4 5 Foaming agent 8 6 4

The support 213 is formed of silicon or neoprene rubber having a hardness of 50 to 70 in the form of any one selected from a circle, a triangle, a rectangle, and a polygon, and has an inclined surface at the bottom to minimize the contact area with the floor concrete slab 110. 213-1) is formed in a narrower shape. Here, the support 213 cuts and attaches the absorbent plate 213-3, which is a neoprene-based rubber plate of hardness 50 to 70, to the bottom thereof in the same manner as the support 213.

The fixing member 215 is composed of a fixing plate 215-1, a pipe 215-3, and a holder 215-5.

The fixing plate 215-1 is formed in a disc shape of a metal or PP material, and a fastening hole 215-11 is formed in the center thereof, and includes a plurality of first bolt holes 215-13. Here, a plurality of pairs of mounting protrusions 215-15 may be formed on the bottom surface of the fixing plate 215-1 to allow the pipe 215-3 to be seated.

Both ends of the pipe 215-3 are fixed to the fixing plate 215-1 by metal or synthetic resin, and inserted into the pipe groove 211-3. Here, the pipe 215-3 is fixed to the upper surface of the mounting protrusion 215-15 after being inserted into the mounting protrusion 215-15 formed on the bottom surface of the fixing plate 215-1 as shown in FIG. The fixing plate 215-1 of the U-shaped clip 215-33 is fixed to the bottom of the fixing plate 215-1 by the panel 215-31 or bolted as shown in FIG. 3. It can be fixed to the bottom. Here, the pipe 215-3 may be directly installed so as to be interviewed with the bottom surface of the foam board 211. In this case, it is preferable that the pipe groove 211-3 is not formed in the foam board 211. The end of the pipe 215-3 is preferably fixed through the side of the fixing plate 215-1.

The holder 215-5 is formed in a cylindrical shape with the same material as the fixing plate 215-1, and a second step 215-51 is formed at an outer lower end thereof, and the upper body 215 is formed by the second step 215-51. -53 and the lower body (215-55), the support 213 is inserted therein is fastened to the fastening hole (215-11) of the fixing plate (215-1). Here, the upper body (215-53) is provided with a plurality of second bolt holes (215-54) on the outer surface to fix the support 213 by a bolt, the lower body (215-55) on the outer periphery Threads 215-56 are formed to be engaged with the fastening holes 215-11 of the fixing plate 215-1.

In addition, the gap forming member 220 is formed in a rectangular plate shape with a foam board made of the same material as the interlayer noise preventing material 210, and absorbs noise and impact and has a hardness of 70 or more to prevent deformation due to lateral pressure of mortar. It is inserted vertically between the interior and exterior walls 120 and the inter-layer noise prevention material 210 to form a gap (g) between the inter-layer noise prevention material 210 and the interior and exterior walls 120, interlayer noise prevention material A first step 221 on which the end of the 210 is mounted is formed.

Here, in the gap forming member 220, the height adjusting holes 223 are formed at equal intervals on the bottom of the first step 221, and the height adjusting bolts 225 are coupled to the height adjusting holes 223.

Here, the gap forming member 220 is removed after curing after the heating pipe 150 and the finishing mortar layer 160 is poured on the upper surface of the interlayer noise preventing material 210 as shown in Figure 6a. A gap g is formed between the inner and outer walls 120 and the interlayer noise preventing material 210 and between the inner and outer walls 120 and the finishing mortar layer 160.

Hereinafter, the manufacturing process of the interlayer floor structure of a multi-family house according to the present invention will be described in detail with reference to the accompanying drawings.

The foam board 211 is placed on a press device (not shown) in which a plurality of press-fit rods are formed, and the press-fit rod is lowered to form a seating groove 211-1 at a desired position, and then seated with the seating groove 211-1. The pipe grooves 211-3 connecting the grooves 211-1 are cut and formed. In this case, the seating groove 211-1 and the pipe groove 211-3 may be simultaneously formed when the foaming board 211 is foamed.

Then, the support 213 is inserted into the holder 215-5, and then the bolts 213 are fastened to the second bolt holes 215-54 formed in the upper body 215-53, respectively. Fix it.

When the fixing of the support 213 is completed, the holder 215-5 is fastened and fixed to the fastening hole 215-11 formed in the fixing plate 215-1.

The pipe 215-3 is fixed to the fixing plate 215-1 in the same manner as the pipe groove 211-3, and then the holder 215-5 is fixed to the seating groove 211-1. ) Is seated in the pipe groove 211-3.

In this state, the fixing plate 215-1 is fixed to the foam board 211 by fastening a bolt to the first bolt hole 215-13 of the fixing plate 215-1.

Referring to the installation process of the floor structure of the floor of the multi-family house using the interlayer noise prevention material 210 manufactured as described above in detail as follows.

First, in a state in which the bottom concrete slab 110 and the interior and exterior walls 120 are formed, one side of the gap forming member 220 is attached to the bottom side of the interior and exterior walls 120 to be interviewed and upright. In this case, the gap forming members 220 are installed to be adjacent to each other to be installed on the lower front side surface of the inside and outside walls 120, and the gap forming member 220 has a tape (not shown) with a neighboring gap forming member 140. It is hermetically sealed to prevent the penetration of moisture into walls 120 inside and outside the building when forming the finishing mortar layer 160. In addition, by using the height adjusting bolt 225 coupled to the height adjusting hole 223 of the gap forming member 220 to maintain the horizontal of the gap forming member 220.

When the installation of the gap-forming member 220 is completed, the interlayer noise preventing material 210 having a thickness of 70 mm (board 30 mm, support 30 mm, absorber plate 10 mm) is laminated on the floor concrete slab 110. , Install several to neighbor each other to install in front of the floor concrete slab 110. At this time, the end of the interlayer noise preventing material 210 is mounted on the step 221 of the gap forming member 220. In addition, the interlayer noise preventing material 210 is laminated on the top surface of the bottom concrete slab 110, and then the joint portion between the neighboring interlayer noise preventing material 210 and the joint of the interlayer noise preventing material 210 and the gap forming member 220. It is hermetically sealed by an additional tape (not shown) to prevent moisture from penetrating into the bottom concrete slab 110 when forming the finishing mortar layer 160.

Then, the heating pipe 150 for heating the apartment house is installed on the interlayer noise preventing material 210. At this time, the heating pipe 150 is preferably fixed on the interlayer noise prevention material 210 by a separate stopper or fixing means.

Then, the cement mortar kneaded in a predetermined amount of water together with the fine sand of the cement in the space around the heating pipe 150 is poured by curing the mortar layer 160 for finishing so that the thickness is about 40 ~ 50mm.

Thus, when the curing of the finishing mortar layer 160 is completed, each gap-forming member 220 is discharged, and the interior and exterior walls 120 and the interlayer noise preventing material 210 and the interior and exterior walls 120 and the finish are discharged. A gap g is formed between the molten mortar layers 160. At this time, the gap forming member 220 is easily discharged because the material does not adhere to the cement mortar.

When the removal of the gap forming member 220 is completed, the floor decorative layer 170 made of a decorative material such as monolium or solid wood, tiles, marble, etc. is laminated on the upper surface of the finishing mortar layer 160 and the gap g.

Therefore, by placing the pipe on the bottom surface of the interlaminar noise prevention material as described above, it is possible to prevent the interlaminar noise prevention material from being depressed by heat and weight, and can be stably attached and fixed by fastening and fixing the support with bolts using a separate fixing plate. .

In addition, by forming a step through which the interlayer noise preventing material is mounted on the side surface of the gap forming member, it is possible to prevent the interlayer noise preventing material from being depressed by the load of the worker and the mortar during operation.

As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

1 is a cross-sectional view showing a conventional conventional interlayer floor structure,

2a and 2b is a view showing the configuration of the floor structure of the conventional multi-unit house,

Figure 3 is an exploded perspective view showing the configuration of the floor noise prevention material of the inter-floor floor structure of a multi-unit house according to the invention,

Figure 4 is a bottom view showing the configuration of the floor noise prevention material of the floor structure of the multi-family house according to the invention,

5 is an exploded perspective view showing a fixing member configuration of the interlayer noise preventing material among the floor structures of the multi-family house according to the present invention;

Figure 6 is a cross-sectional view showing the configuration of the floor noise prevention material of the floor structure of the multi-family house according to the invention,

Figure 7 is a perspective view showing another embodiment of the floor noise prevention material of the floor structure of the multi-family house according to the present invention,

8 is a perspective view showing the configuration of a gap forming member of the floor structure of the inter-floor according to the present invention;

9a and 9b is a cross-sectional view showing the floor structure between the floor of the multi-unit house according to the invention.

<Explanation of symbols on main parts of the drawings>

210: interlayer noise prevention material 211: foam board

213: support 215: fixed member

215-1: fixing plate 215-3: pipe

215-5: holder 220: gap forming member

221: first step 223: height adjustment hole

225 height adjustment bolt

Claims (10)

Floor concrete slabs; Walls inside and outside the building; The interlayer noise preventing material is formed of a PVC material, a plurality of mortar holes are formed therethrough, and are laminated on an upper surface of the floor concrete slab to form an air layer to block noise and vibration; A gap forming member inserted vertically between the inner and outer walls of the building and the interlayer noise preventing material to form a gap between the interlayer noise preventing material and the side wall, wherein a first step is formed at which an end of the interlayer noise preventing material is mounted; And Interlayer floor structure of a multi-family house, characterized in that provided on the upper surface of the noise prevention material between the floor and the heating mortar layer for finishing. The method of claim 1, The interlayer noise preventing material, A foam board which is formed in the shape of a square plate made of PVC and has a seating groove formed at a bottom edge thereof, and a straight or oblique pipe groove is formed on the bottom thereof to connect the seating recess and the seating recess; A support formed of silicon-based or neoprene-based rubber and fixed to the seating groove while being a bottom of the foam board; And Interlayer floor structure of the apartment house, characterized in that it comprises a fixing member for coupling the support to the bottom of the foam board. delete The method of claim 2, The support is, It is formed in any one shape selected from a circle, a triangle, a square, a polygon, and is formed in a narrower shape with an inclined surface at the bottom to minimize the contact area with the floor concrete slab, the neoprene rubber material at the bottom Interlayer floor structure of a multi-family house, characterized in that the absorbing plate is cut and attached to the same form as the support. The method of claim 2, The fixing member, A fixing plate formed of a metal or PP material in a disk shape, the fastening hole being formed in the center portion, and having a plurality of first bolt holes; A pipe whose end is fixed to the fixing plate and inserted into the pipe groove; And It is formed in a cylindrical shape with the same material as the fixing plate, and the second step is formed at the outer lower end, and the upper step and the lower body are formed by the second step, and the support is inserted into the fastening hole of the fixing plate. Floor structure of the multi-family house, characterized in that consisting of a holder. The method of claim 5, wherein The pipe is The fixing plate is fixed to the bottom surface of the fixing plate by a fixing panel which is inserted into a mounting protrusion formed to seat the pipe on the bottom of the fixing plate, and then fixed to the bottom surface of the fixing plate by a fixing panel which is fastened to the top of the mounting protrusion. Floor structure of the multi-family house, characterized in that fixed to the bottom. The method of claim 5, wherein The upper body is An interlayer floor structure of a multi-family house, characterized in that a plurality of second bolt holes are provided on an outer surface to fix the support by bolts. The method of claim 5, wherein The lower body is, Interlayer floor structure of the multi-family house, characterized in that the screw thread is formed to be coupled to the fastening hole of the fixing plate on the outer periphery. The method of claim 1, The gap forming member, Height adjustment holes are formed at equal intervals on the bottom surface of the first step, and the floor structure of the apartment house, characterized in that the height adjustment bolt is coupled to the height adjustment hole. The method of claim 1, The gap forming member, An interlayer floor structure of a multi-family house, wherein the heating pipe and the finishing mortar layer are placed on the upper surface of the interlayer noise preventing material and removed after curing.

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