KR102552449B1 - the impact damper and the structure for reducing noise between floors using the same - Google Patents

Abstract

The present invention is a damper box 210 having a shock transmission plate 215 protruding outward from the lower end in a cylindrical shape with an open bottom;
a collision body 220 in which a through hole 221 is formed vertically in the center;
guide bolts 250 installed through the through-holes 221 to allow the impactor 220 to move up and down inside the damper box 210;
a shock absorber 290 installed under the shock transmission plate 215;
It consists of including,
It is installed in the finishing structure of the upper part of the floor slab (S) so that the shock absorber 290 alleviates the upper impact and uses the inertia of the impactor 220 to implement a vibration suppression function. It provides an impact damper 200 for use.
In addition, by using the impact damper 200 for reducing inter-floor noise having the buffer material,
The floor slab of the building structure (S);
An impact damper 200 for reducing inter-floor noise having the cushioning material installed on the floor slab (S);
The finishing structure including the impact damper 200 for reducing inter-floor noise having the buffer material therein and installed on the floor slab (S);
It provides an inter-floor noise reduction structure using an impact damper for inter-floor noise reduction having a buffer material, characterized in that it comprises a.

Description

Impact damper for reducing noise between floors having a buffer material and structure for reducing noise between floors using the impact damper {the impact damper and the structure for reducing noise between floors using the same}

The present invention is for reducing floor impact noise in apartment houses, and is particularly effective for low-frequency impact noise, which is a problem in heavy impact noise, and has an impact damper for reducing inter-floor noise that is equipped with a buffer material that is effective for lightweight impact noise by strengthening sound insulation performance, and inter-floor noise using the same It is about reduction structure.

Interfloor noise, which has become a social problem after the 1980s, when residential types became centered on apartment buildings, was largely divided into light impact noise of medium and high frequency components, such as the sound of dragging chairs, and low frequency components caused by heavy and soft impacts generated during walking. It is classified as a weight impact sound, and in the case of living barefoot after taking off shoes indoors, as in Korea, the damage of the weight impact sound is particularly great.

1 is a cross-sectional view showing a conventional floor structure in an apartment building.

Floor ondol using hot water is essential in apartment houses in Korea.

Therefore, as shown in FIG. 1, it is insulated between the floor slab (S) and the airtight portion composed of the lightweight foamed concrete (AC) including the hot water pipe (HP) and the finishing mortar (M), and the cushioning material (I) of a soft material with a low dynamic elastic coefficient ) in the form of a mat, the floating floor structure is generally applied because it is easy to construct and low cost.

However, in the case of the above method, if the dynamic elastic coefficient of the buffer plate is lowered for the weight impact sound of the low frequency component, problems arise in construction and long-term deflection, thereby legally limiting the material property standards. There was a limit to the weight impact sound.

As an alternative to this, 1) the lightweight aerated concrete (AC) is also made into a mortar and integrated with the finishing mortar (M) to increase the plate rigidity of the communication part to make it difficult to vibrate, or 2) to the lightweight aerated concrete (AC) A method of reducing impact sound itself by arranging a granite panel (mass damper), which is a heavy material, to increase the mass rigidity of the communication unit (registered patent 1683055) has been proposed.

However, in the case of 1), the thickness of the integrated communication unit is relatively thin compared to the size of the slab, so the improvement effect is low as the size of the slab increases.

In the case of 2), the granite panel weighs more than 14kg, so it is difficult to transport and install, so it is difficult to put it into practical use.

Moreover, with the spread of long-life houses, reinforced concrete load-bearing walls are replaced with lightweight walls, and as the factors that fix the slab are reduced, the vibration of the slab is formed at a lower frequency. It is very difficult and we need an alternative to this.

[Document 1] Republic of Korea Patent Registration No. 0736200 'Method of manufacturing a panel for preventing inter-floor noise on the floor of an apartment building', 2004. 12. 10. [Document 2] Republic of Korea Patent Registration No. 1683055 'Floor floor of a building equipped with an impact sound buffer and method of constructing the same', 2016. 11. 30.

In order to solve the conventional problems as described above, the present invention is an impact damper for reducing inter-floor noise having a buffer capable of reducing inter-floor noise by improving impact force without a separate design change while applying a conventional familiar method, and using the same It is intended to provide an inter-floor noise reduction structure.

In order to solve the above technical problem, the present invention is a damper box 210 formed with a shock transmission plate 215 protruding from the lower end to the outside in a cylindrical shape with a lower end open;

a collision body 220 in which a through hole 221 is formed vertically in the center;

guide bolts 250 installed through the through-holes 221 to allow the impactor 220 to move up and down inside the damper box 210;

a shock absorber 290 installed under the shock transmission plate 215;

It consists of including,

It is installed in the finishing structure of the upper part of the floor slab (S) so that the shock absorber 290 alleviates the upper impact and uses the inertia of the impactor 220 to implement a vibration suppression function. It provides an impact damper 200 for use.

In addition, by using the impact damper 200 for reducing inter-floor noise having the buffer material,

The floor slab of the building structure (S);

An impact damper 200 for reducing inter-floor noise having the cushioning material installed on the floor slab (S);

The finishing structure including the impact damper 200 for reducing inter-floor noise having the buffer material therein and installed on the floor slab (S);

It provides an inter-floor noise reduction structure using an impact damper for inter-floor noise reduction having a buffer material, characterized in that it comprises a.

According to the present invention, the following effects are expected.

First, an impact damper for reducing inter-floor noise having a buffer material that satisfies the material property standards of the insulation and buffer plate and improves the impact force while applying the conventional familiar method, and inter-floor noise reduction structure using the same is provided. .

Second, due to the spread of long-life housing, an impact damper for reducing inter-floor noise having a buffer material to overcome the limitations of the conventional method due to a slab vulnerable to vibration and a structure for reducing inter-floor noise using the same are provided.

1 is a cross-sectional view showing a conventional floor structure in an apartment building.
2 is a perspective view of an inter-floor noise reduction structure using an impact damper for inter-floor noise reduction having a buffer material of the present invention.
Figure 3 is an exploded perspective view of Figure 2;
Figure 4 is a combined perspective view of the impact damper for reducing inter-floor noise having a cushioning material of the present invention.
5 is an exploded perspective view of an impact damper for reducing inter-floor noise having a cushioning material of the present invention.
Figure 6 is a conceptual diagram explaining the behavior of the inter-floor noise reduction structure using the impact damper for inter-floor noise reduction having a buffer material of the present invention.

Hereinafter, the present invention will be described in more detail through an embodiment in which the concept of the present invention as described above is preferably implemented in conjunction with the accompanying drawings.

4 is a combined perspective view of an impact damper for reducing inter-floor noise having a cushioning material of the present invention;

5 is an exploded perspective view of an impact damper for reducing inter-floor noise having a cushioning material of the present invention.

The impact damper 200 for reducing inter-floor noise having the cushioning material of the present invention,

A damper box 210 in which a shock transmission plate 215 protrudes outward from the lower end in a cylindrical shape with a lower end open;

a collision body 220 in which a through hole 221 is formed vertically in the center;

guide bolts 250 installed through the through-holes 221 to allow the impactor 220 to move up and down inside the damper box 210;

a shock absorber 290 installed under the shock transmission plate 215;

It consists of including,

It is installed in the finishing structure of the upper part of the floor slab (S), and the shock absorber 290 relieves the upper shock and implements a vibration suppression function by using the inertia of the impactor 220.

That is, the shock absorber 290 and the inertia of the impactor 220 are used to simultaneously secure the shock absorber and the impact force.

Specifically, it is as follows.

The damper box 210,

wall plate 211 as a vertical wall;

a top plate 213 sealing an upper portion of the wall plate 211;

And a shock transmission plate 215 formed with a certain area so as to protrude from the bottom of the wall plate 211 to the outside;

It consists of,

A guide hole (not shown) through which the guide bolt 250 passes is formed in the center of the top plate 213, so that the overall behavior is similar to that of a fedora with an open bottom.

The coupling structure of the guide bolt 250, the impactor 220 and the damper box 210 will be described in detail.

The guide bolt 250 protrudes into the guide hole (not shown) through the through-hole 221 through the collision plate 240 with the bolt head located at the bottom,

The protruding portion is fastened using a fixing nut 270 after the spacer 260 is inserted.

The collision plate 240 prevents separation of the collision body 220 and functions to receive an impact force with the collision body 220 and transmit force to the finishing structure through the guide bolt 250 .

The fixing nut 270 has a butterfly nut shape and is preferably embedded in a closed structure so as not to be loosened.

The damper box 210 is preferably made of synthetic resin or plastic resistant to impact and corrosion such as steel or polycarbonate.

The shock absorber 290 functions to reduce vibration and impact sound by elastically deforming the impact force collected and transmitted from the upper finishing structure to the impact transmission plate 215, and it must be durable because it is always deformed as well as an elastic restoration function. And, it is desirable to have chemical resistance that is not affected by the surrounding environment. As a material, a generally used rubber type is preferable, but it is also possible to use elastic expanded polystyrene (EPS), a spring, and a shock-absorbing gel or a product containing a gel.

The collision body 220 can be made of steel or stone as a heavy material,

For smooth vertical movement, it is preferable to minimize the contact surface with the wall plate 211 while forming the lower surface in a hemispherical shape.

In addition, it is preferable to include a lubricant on the mutual contact surface so that the collision body 220 can easily move up and down within the damper box 210.

Also, although not shown, a liquid or highly viscous gel type filling solution (not shown) may be filled in the damper box 210 .

The filling amount and viscosity of the filling liquid (not shown) can be adjusted in consideration of the buoyancy acting on the collider 220, and serves to double the damper function of the collider 220.

However, in order to use the filling liquid (not shown), a separate means or structure for sealing the lower surface of the damper box 210 may be required.

In addition, in order to double the damper function of the impactor 220, elastic bodies such as springs may be installed on the upper and lower parts of the impactor 220.

2 is a perspective view of an inter-floor noise reduction structure using an impact damper for inter-floor noise reduction having a buffer material of the present invention;

Figure 3 is an exploded perspective view of Figure 2;

And Figure 6 is a conceptual diagram explaining the behavior of the inter-floor noise reduction structure using the impact damper for reducing inter-floor noise having a buffer material of the present invention.

The inter-floor noise reduction structure using the impact damper for inter-floor noise reduction having the buffer material of the present invention shown is,

Using the impact damper 200 for reducing inter-floor noise having the buffer material,

The floor slab of the building structure (S);

An impact damper 200 for reducing inter-floor noise having the cushioning material installed on the floor slab (S);

The finishing structure including the impact damper 200 for reducing inter-floor noise having the buffer material therein and installed on the floor slab (S);

It is characterized in that it is configured to include.

As shown,

The finishing structure is

Insulation plate 100 installed on the floor slab (S);

a communication unit 300 installed above the insulation board 100;

It is composed of.

The insulating board 100 is preferably in the form of a mat basically equipped with insulating performance and shock absorbing function.

A hole into which the damper box 210 can be embedded is preferably formed in advance in the insulating plate 100, and the upper surface of the shock transmission plate 215 is installed in close contact with the lower surface of the insulating plate 100.

The communication unit 300,

lightweight foamed concrete 310 at the bottom;

Finishing mortar 330 installed on top of the lightweight foamed concrete 310;

A hot water pipe 320 or a heating pipe installed inside the finishing mortar 330;

It consists of,

The impact damper 200 for reducing inter-floor noise having the buffer material is embedded and installed in the lightweight foamed concrete 310,

Since the fixing nut 270 is embedded and integrated into the finishing mortar 330, the fastening is not loosened.

The lightweight aerated concrete 310 has an insulation function and a self-leveling function to level at the time of finishing, and it is also possible to apply the lightweight aerated concrete 310 as a mortar such as the finishing mortar 320 to increase plate rigidity. do.

In addition, a part of the damper box 210 may protrude above the lightweight aerated concrete 310 and be embedded in the finishing mortar 320 to be integrated.

In addition, it is also possible to omit the lightweight foamed concrete 310 and thicken the insulation board 100 to finish only with the finishing mortar 330.

Figure 6 is a conceptual diagram explaining the behavior of the inter-floor noise reduction structure using the impact damper for inter-floor noise reduction having a buffer material of the present invention.

In FIG. 6, ㉠ is the overall deformation state, ㉡ is the force transmission behavior in the same state as ㉠, and ㉢ and ㉣ are cross-sectional enlarged parts of the impact damper 200 for reducing inter-floor noise having a buffer including the above finishing structure. The deformation process in ㉤ shows the force transmission behavior in the same state as ㉣.

In addition, the blue arrows in ㉠, ㉢, and ㉣ indicate deformation, and in ㉡, the red arrow indicates the impact force collected from the finished structure to the impact transmission plate 215 and transmitted to the cushioning material 290, and the blue arrow indicates the shock absorbing material ( 290), and in ㉤, the blue arrow indicates the restoring force of the finished structure, and the red arrow indicates the transmission of force due to the collision generated by the impactor 220.

The function of the impact damper 200 for reducing inter-floor noise having the cushioning material of the present invention is,

As shown in ㉠, the impact force generated in life such as walking is transmitted to the communication unit 300 → insulation plate 100 → impact damper 200 for reducing inter-floor noise with a buffer material → floor slab (S), and the finish The entire structure of the slab, including the structure, is bent and deformed and vibrates up and down.

As shown in ㉡, when the insulation plate 100 collects the impact force transmitted through the communication unit 300 and concentrates it on the impact damper 200 for reducing inter-floor noise having the buffer material, a significant portion of the transmitted impact force The shock absorber 290 effectively absorbs, buffers and relieves through the shock transmission plate 215,

And, as shown in ㉢, when the entire slab structure moves in the downward direction, the impactor 220 inside the damper box 210 tries to maintain its position by inertia, and the become a state

Subsequently, as shown in ㉣, when the entire slab structure moves in an upward direction to restore to its original position with a restoring force, the impactor 220 moves in a downward direction inside the damper box 210 by inertia. In the same state, it collides with the collision plate 240 .

After that, as shown in ㉤, the force colliding with the collision plate 240 is transmitted to the finishing mortar 330 through the integrated guide bolt 250-fixing nut 270, so that the force opposite to the restoring force It acts to suppress (damage) the movement of the entire slab structure.

Therefore, as a result, it is characterized in that the vibration (noise) suppression function is implemented by simultaneously improving the buffer and impact force with a hybrid system using the buffer of the buffer 290 and the inertia of the impactor 220.

In particular, the behavior is effective for weight impact sound with relatively large vibration, and the cushioning of the cushioning material 290 and the sound insulation property of the air layer between the floor slab (S) and the insulation plate 100 effectively respond to the reduction of lightweight impact sound characterized by

Although the present invention has been described in relation to the preferred embodiments as mentioned above, various modifications and variations are possible within the scope without departing from the gist of the present invention, and can be used in various fields.

Accordingly, the claims of this invention include the modifications and variations which fall within the true scope of this invention.

S: floor slab
I: buffer material
AC: lightweight aerated concrete
M: finishing mortar
100: insulation plate
200: Impact damper for noise reduction between floors equipped with a buffer material
210: damper box
211: wall plate
213: top plate
215: shock transmission plate
220: collider
221: through hole
240: collision plate
250: guide bolt
270: fixing nut
290: buffer material
300; Ministry of Communications and Communications
310: lightweight aerated concrete
320: hot water pipe
330: finishing mortar

Claims (2)

A damper box 210 in which a shock transmission plate 215 protrudes outward from the lower end in a cylindrical shape with a lower end open;
a collision body 220 in which a through hole 221 is formed vertically in the center;
guide bolts 250 installed through the through-holes 221 to allow the impactor 220 to move up and down inside the damper box 210;
a shock absorber 290 installed under the shock transmission plate 215;
It consists of including,
It is installed in the finishing structure of the upper part of the floor slab (S), and the shock absorber 290 relieves the upper shock and implements a vibration suppression function by using the inertia of the impactor 220,
The damper box 210 includes a wall plate 211 as a vertical wall; a top plate 213 sealing an upper portion of the wall plate 211; And a shock transmission plate 215 formed with a certain area so as to protrude from the bottom of the wall plate 211 to the outside, and a guide hole through which the guide bolt 250 passes in the center of the top plate 213. (not shown) is formed,
The guide bolt 250 protrudes into the guide hole (not shown) through the through-hole 221 through the collision plate 240 with the bolt head located at the bottom, and the protruding part is the spacer 260 ) After being inserted, it is fastened using the fixing nut 270,
The collision plate 240 prevents separation of the collision body 220 and functions to transmit force to the finishing structure through the guide bolt 250 by receiving an impact force with the collision body 220,
The impactor 220 is made of a heavy material and minimizes the contact surface with the wall plate 211 for smooth vertical movement and has a lower surface in a hemispherical shape. ).
Using the impact damper 200 for reducing inter-floor noise having the buffer material of claim 1,
The floor slab of the building structure (S);
An impact damper 200 for reducing inter-floor noise having the cushioning material installed on the floor slab (S);
The finishing structure including the impact damper 200 for reducing inter-floor noise having the buffer material therein and installed on the floor slab (S);
Inter-floor noise reduction structure using an impact damper for reducing inter-floor noise having a buffer material, characterized in that it comprises a.

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