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KR100635077B1 - Viscoelastic material damping system for floor noise reduction - Google Patents

Viscoelastic material damping system for floor noise reduction Download PDF

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KR100635077B1
KR100635077B1 KR1020040109341A KR20040109341A KR100635077B1 KR 100635077 B1 KR100635077 B1 KR 100635077B1 KR 1020040109341 A KR1020040109341 A KR 1020040109341A KR 20040109341 A KR20040109341 A KR 20040109341A KR 100635077 B1 KR100635077 B1 KR 100635077B1
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South Korea
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viscoelastic damping
bottom plate
damping device
present
viscoelastic
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KR1020040109341A
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Korean (ko)
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KR20060070746A (en
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김홍진
황재승
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재단법인 포항산업과학연구원
주식회사 포스코건설
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • F16F7/087—Elastomeric surface effect dampers

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Building Environments (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

본 발명은 바닥충격음 저감 천정지지용 점탄성감쇠장치에 관한 것으로 특히, 고무나 우레탄으로 이루어진 점탄성 감쇠 시트(Sheet)를 이용하여 윗층 바닥 슬라브에서 발생하는 진동 및 소음 발생을 감소시킬 수 있는 바닥충격음 저감 천정지지용 점탄성감쇠장치를 제공하는 것을 목적으로 한다.The present invention relates to a viscoelastic damping device for supporting a floor impact sound reduction ceiling, and more particularly, to a floor impact sound reduction ceiling capable of reducing vibration and noise generated in an upper floor slab by using a viscoelastic damping sheet made of rubber or urethane. It is an object to provide a support viscoelastic damping device.

상기한 목적을 갖는 본 발명의 바닥충격음 저감 천정지지용 점탄성감쇠장치는, 구조물의 바닥판 하단면에는 고무나 우레탄 재질의 얇은 판으로 구성된 점탄성 감쇠 재료가 접착되어 이루어지고, 점탄성 감쇠 재료를 사이에 두고 바닥판에는 H빔이나 ㄱ형강으로 이루어진 보강재가 더 결합되어, 공동주택의 바닥판 진동을 효과적으로 흡수함으로써, 바닥충격음의 발생을 효율적으로 줄일 수 있는 것을 특징으로 한다.In the viscoelastic damping device for floor impact sound reduction ceiling support according to the present invention having the above object, a viscoelastic damping material composed of a thin plate of rubber or urethane is adhered to the bottom surface of the bottom plate of the structure, and the viscoelastic damping material is interposed therebetween. Reinforcement made of H beam or a-beam is further coupled to the bottom plate, and by effectively absorbing the floor plate vibration of the apartment, it is characterized in that the generation of the floor impact sound can be efficiently reduced.

점탄성 소재, 소음 감쇠, 바닥판, H빔, 보강재, ㄱ형강, 접착제, 고무, 우레탄Viscoelastic material, noise damping, bottom plate, H beam, reinforcement, a-beam, adhesive, rubber, urethane

Description

바닥충격음 저감 천정지지용 점탄성 감쇠장치{Viscoelastic material damping system for floor noise reduction} Viscoelastic material damping system for floor noise reduction             

도 1a는 본 발명의 제1 실시예에 따른 구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 정면 개략도1A is a front schematic view showing a state in which a constrained viscoelastic damping device according to a first embodiment of the present invention is coupled to a bottom plate;

도 1b는 본 발명의 제1 실시예에 따른 구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 측면 개략도Figure 1b is a side schematic view showing a state in which the restrained viscoelastic damping device according to the first embodiment of the present invention is coupled to the bottom plate

도 2a는 본 발명의 제2 실시예에 따른 비구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 정면 개략도Figure 2a is a front schematic diagram showing a state in which the non-constrained viscoelastic damping device according to the second embodiment of the present invention is coupled to the bottom plate

도 2b는 본 발명의 제2 실시예에 따른 비구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 측면 개략도Figure 2b is a side schematic view showing a state in which the non-constrained viscoelastic damping device according to the second embodiment of the present invention is coupled to the bottom plate

도 3은 본 발명의 구속형 점탄성 감쇠장치의 거동을 나타내는 개략도3 is a schematic view showing the behavior of the constrained viscoelastic damping device of the present invention.

도 4는 본 발명의 비구속형 점탄성 감쇠장치의 거동을 나타내는 개략도4 is a schematic view showing the behavior of the non-constrained viscoelastic damping device of the present invention.

도 5는 본 발명의 구속형 점탄성 감쇠장치가 바닥판에 설치된 상태를 나타내는 실물사진5 is a physical photograph showing a state in which the constrained viscoelastic damping device of the present invention is installed on the bottom plate

도 6은 본 발명의 구속형 점탄성 감쇠장치에서 감쇠 시트가 고무판으로 이루어져 바닥판에 설치된 상태를 나타내는 실물사진Figure 6 is a physical picture showing a state in which the damping sheet is installed on the bottom plate made of a rubber plate in the restrained viscoelastic damping device of the present invention

도 7은 본 발명의 구속형 점탄성 감쇠장치에서 감쇠 시트가 우레탄으로 이루어진 상태를 나타내는 실물사진7 is a real picture showing a state in which the damping sheet is made of urethane in the restrained viscoelastic damping device of the present invention

도 8은 본 발명의 구속형 점탄성 감쇠장치에서 감쇠 시트를 고무판과 우레탄을 각각 채용 사용하였을 때의 중량충격음과 본 발명의 감쇠장치가 없는 일반 벽식 바닥판과의 중량충격음을 비교한 그래프8 is a graph comparing the weight impact sound of the damping sheet when the rubber sheet and urethane are used in the constrained viscoelastic damping device of the present invention and the weight impact sound of the general wall deck without the damping device of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 바닥판 10 : 점탄성 감쇠 재료1: bottom plate 10: viscoelastic damping material

20 : H빔20: H beam

본 발명은 바닥충격음 저감 천정지지용 점탄성감쇠장치에 관한 것으로서, 더욱 상세하게는 얇은 판으로 이루어진 점탄성 감쇠 시트(Sheet)를 이용하여 윗층 바닥 슬라브(이하, "바닥판"이라 함)에서 발생하는 진동 및 소음 발생을 감소시킬 수 있는 바닥충격음 저감 천정지지용 점탄성감쇠장치에 관한 것이다.The present invention relates to a viscoelastic damping device for ceiling support to reduce floor impact sound, and more particularly, vibration generated in an upper floor slab (hereinafter referred to as a "floor plate") using a viscoelastic damping sheet made of a thin plate. And it relates to a viscoelastic damping device for supporting the floor impact sound reduction ceiling that can reduce the generation of noise.

종래의 공동주택에서의 층간소음 저감방식은 바닥판의 슬라브와 온돌마감재 사이에 층간소음 완충재를 삽입하거나, 또는 천정과 차음막을 설치하여 윗층 소음의 아래층 전달을 차단하는 것이 대부분이다.In conventional apartments, the floor noise reduction method inserts an interlayer noise cushioning material between the slab of the slab and the ondol finishing material, or installs a ceiling and a sound shield to block the transmission of the lower floor noise.

그러나 이와 같이 층간소음 완충재나 차음막의 설치에 의해 아래층으로의 소음을 차단하는 종래의 방식에서는 상기 구성요소들의 설치비가 증가되는 문제점이 있었으며, 또한 윗층으로부터 발생된 소음의 아래층 저감효과는 극히 미미한 문제점이 있었다.However, in the conventional method of blocking the noise to the lower floor by the installation of the interlayer noise absorber or the sound shield, there is a problem in that the installation cost of the components is increased, and the effect of reducing the lower floor of the noise generated from the upper floor is extremely insignificant. there was.

즉, 공동주택에서 문제가 되는 소음으로는 물건을 떨어뜨리는 소리와 같은 고주파대역의 경량충격음과 아이들이 뛰어 노는 소리와 같은 중저파대역의 중량충격음이 있다.That is, the noise that is a problem in the apartment houses are light-shock shocks of high frequency bands, such as dropping objects, and heavy shock sounds of mid- and low-frequency bands such as children playing.

상기한 소음 중 경량충격음은 종래의 층간소음 완충재나 차음막의 설치에 의해 어느 정도 차단하는 효과는 있으나, 중량충격음의 경우는 바닥판의 진동에 의하여 발생함에 따라 종래의 층간소음 완충재나 차음막으로는 차단 효과를 볼 수 없었던 것이다.Among the above noises, the light impact sound may be blocked to some extent by the installation of a conventional interlayer noise absorber or sound insulation film. However, in the case of a heavy impact sound, the light effect may be caused by vibration of the bottom plate. I could not see the blocking effect.

본 발명은 상기한 종래의 문제점을 개선하고자 안출된 것으로서, 얇은 판으로 이루어진 점탄성 감쇠 시트를 이용하여 윗층 바닥판의 진동을 흡수함으로써, 윗층의 진동 및 소음의 발생을 감소시킬 수 있는 바닥충격음 저감 천정지지용 점탄성감쇠장치를 제공하는데 그 목적이 있다.
The present invention has been made to improve the above-described conventional problems, by absorbing the vibration of the upper floor plate by using a viscoelastic damping sheet made of a thin plate, the floor impact sound reduction ceiling that can reduce the generation of vibration and noise of the upper floor It is an object of the present invention to provide a support viscoelastic damping device.

상기한 목적을 달성하기 위한 수단으로서, 본 발명의 바닥충격음 저감 천정 지지용 점탄성감쇠장치는, 구조물의 바닥판 하단면에는 고무나 우레탄 재질의 얇은 판으로 구성된 점탄성 감쇠 재료가 접착되어 이루어지고, 점탄성 감쇠 재료를 사이에 두고 바닥판에는 H빔이나 ㄱ형강으로 이루어진 보강재가 더 결합되어, 공동주택의 바닥판 진동을 효과적으로 흡수함으로써, 바닥충격음의 발생을 효율적으로 줄일 수 있는 것을 특징으로 한다.As a means for achieving the above object, the viscoelastic damping device for supporting the floor impact sound reduction ceiling of the present invention, the viscoelastic damping material consisting of a thin plate of rubber or urethane material is bonded to the bottom surface of the bottom plate of the structure, viscoelastic Reinforcement made of H beam or a-beam is further coupled to the bottom plate with the damping material interposed therebetween, so as to effectively absorb the bottom plate vibration of the multi-family house, so that the occurrence of the floor impact sound can be efficiently reduced.

또한, 본 발명의 바닥충격음 저감 천정지지용 점탄성감쇠장치에 구성되는 점탄성 감쇠 재료는 바닥판의 진동이 집중되는 곳에 부분적으로 접착되는 것을 특징으로 한다.In addition, the viscoelastic damping material of the viscoelastic damping device for floor impact sound reduction ceiling support of the present invention is characterized in that it is partially bonded where the vibration of the bottom plate is concentrated.

상술한 목적, 특징들 및 장점은 첨부된 도면과 관련한 다음의 상세한 설명을 통하여 보다 분명해 질 것이다. 우선 각 도면의 구성요소들에 참조 번호를 부가함에 있어서, 동일한 구성요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 번호를 가지도록 하고 있음에 유의하여야 한다.The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as much as possible even if displayed on different drawings.

본 발명은 공동주택에서 문제가 되는 소음 중 특히 바닥판의 진동에 의하여 발생하는 중량충격음을 감소시키기 위한 것으로서, 이러한 바닥판의 진동을 얇은 판으로 이루어진 점탄성 감쇠 재료를 사용하여 줄이고자 하는 것이다.The present invention is to reduce the heavy impact sound caused by the vibration of the bottom plate of the noise that is a problem in the apartment house, and to reduce the vibration of the bottom plate using a viscoelastic damping material made of a thin plate.

이하, 본 발명의 바람직한 실시예를 첨부된 도면과 함께 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1a는 본 발명의 제1 실시예에 따른 구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 정면 개략도이며, 도 1b는 본 발명의 제1 실시예에 따른 구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 측면 개략도이다.1A is a front schematic view showing a state in which a constrained viscoelastic damping device is coupled to a bottom plate according to a first embodiment of the present invention, and FIG. 1B is a constrained viscoelastic damping device according to a first embodiment of the present invention coupled to a bottom plate. It is a schematic side view which shows the state.

상기 도면에 나타낸 바와 같이, 본 발명의 제1 실시예에 따른 구속형 점탄성 감쇠장치는, 바닥판(1)에서 발생하는 진동 및 소음을 저감하기 위하여, 에너지 소산능력이 우수한 점탄성 감쇠 재료(10)로 이루어지되, 상기 점탄성 감쇠 재료(10)는 고무나 우레탄 재질의 얇은 판(감쇠 시트)으로 구성된다.As shown in the drawing, the constrained viscoelastic damping device according to the first embodiment of the present invention is made of a viscoelastic damping material 10 having excellent energy dissipation capacity in order to reduce vibration and noise generated from the bottom plate 1. The viscoelastic damping material 10 is made of a thin plate (damping sheet) made of rubber or urethane.

즉, 상기한 고무나 우레탄 재질의 얇은 판으로 구성된 점탄성 감쇠 재료(10)는 바닥판(1)의 하단면에 접착제(미도시)에 의하여 접착되고, 상기 점탄성 감쇠 재료(10)를 사이에 두고 상기 바닥판(1)에는 앵커볼트(미도시) 등의 연결부재에 의하여 강성이 큰 보강재인 H빔(20)이나 2개의 ㄱ형강이 맞대기 결합(T자형으로 결합)되어 구속형 점탄성 감쇠장치를 구성하게 된다.That is, the viscoelastic damping material 10 composed of the thin plate of rubber or urethane material is adhered to the bottom surface of the bottom plate 1 by an adhesive (not shown), and the viscoelastic damping material 10 is interposed therebetween. The bottom plate (1) by the connecting members such as anchor bolts (not shown), such as a high rigidity reinforcement H beam 20 or two a-beams butt-coupled (combined in a T-shape) to form a constrained viscoelastic damping device Done.

한편, 상기 점탄성 감쇠 재료(10)를 바닥판(1)의 하단 전체면에 접착시킬 수도 있으나, 경제적인 측면에서 진동이 집중되는 곳(즉, 아이들이 뛰어 놀 수 있는 거실 구조 등의 중앙 등) 등에 부분적으로 접착시키는 것이 바람직하다.On the other hand, the viscoelastic damping material 10 may be bonded to the entire lower surface of the bottom plate 1, but in the economical place where vibration is concentrated (that is, the center of the living room structure, etc. where children can play) It is preferable to partially adhere to the back.

또한, 시공성이나 비용적인 측면을 고려하여 상기 H빔(20)이나 ㄱ형강은 양 끝단만이 앵커볼트에 의하여 바닥판에 결합되며, 중간부분에서의 바닥판과의 결합은 이루어지지 않는 것이 바람직하다.In addition, in consideration of workability and cost aspects, the H beam 20 or the a-beams are only coupled to the bottom plate at both ends by anchor bolts, and it is preferable that the bottom plate is not coupled to the bottom plate at an intermediate portion. .

도 2a는 본 발명의 제2 실시예에 따른 비구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 정면 개략도이며, 도 2b는 본 발명의 제2 실시예에 따른 비구속형 점탄성 감쇠장치가 바닥판에 결합된 상태를 나타내는 측면 개략도이다.Figure 2a is a front schematic view showing a state in which the non-constrained viscoelastic damping device according to the second embodiment of the present invention coupled to the bottom plate, Figure 2b is a non-constrained viscoelastic damping device according to the second embodiment of the present invention the bottom plate It is a schematic side view showing the state coupled to.

상기 도면에 나타낸 바와 같이, 본 발명의 제2 실시예에 따른 비구속형 점탄성 감쇠장치는, 바닥판(1)에서 발생하는 진동 및 소음을 저감하기 위하여, 에너지 소산능력이 우수한 점탄성 감쇠 재료(10)로 이루어지되, 상기 점탄성 감쇠 재료(10)는 고무나 우레탄 재질의 얇은 판으로 구성된다.As shown in the figure, the non-constrained viscoelastic damping device according to the second embodiment of the present invention is a viscoelastic damping material 10 having excellent energy dissipation capability in order to reduce vibration and noise generated in the bottom plate 1. The viscoelastic damping material 10 is made of a thin plate of rubber or urethane material.

즉, 상기한 고무나 우레탄 재질의 얇은 판으로 구성된 점탄성 감쇠 재료(10)는 바닥판(1)의 하단면에 접착제에 의하여 접착되고, 도 1a나 1b에서와 같은 H빔(20)이나 ㄱ형강이 결합되지 않는 비구속형 점탄성 감쇠장치를 구성하게 된다.That is, the viscoelastic damping material 10 composed of a thin plate of rubber or urethane material is adhered to the bottom surface of the bottom plate 1 by an adhesive, and the H beam 20 or the a-shaped steel as shown in FIGS. 1A and 1B. The non-binding non-constrained viscoelastic damping device is constructed.

한편, 상기 점탄성 감쇠 재료(10)를 바닥판(1)의 하단 전체면에 접착시킬 수도 있으나, 경제적인 측면에서 진동이 집중되는 곳 등에 부분적으로 접착시키는 것이 바람직하다.On the other hand, although the viscoelastic damping material 10 may be adhered to the entire lower surface of the bottom plate 1, it is preferable to partially adhere to the place where vibration is concentrated in terms of economy.

본 발명의 바닥충격음 저감 천정지지용 점탄성 감쇠장치의 감쇠 원리는 도 1a 및 1b에 나타낸 구속형 점탄성 감쇠장치의 전단변형에 의한 에너지 소산과 도 2a 및 2b에 나타낸 비구속형 점탄성 감쇠장치의 휨변형에 의한 에너지 소산에 의하여 바닥판의 진동과 소음이 저감되는 것이다.The damping principle of the viscoelastic damping device for floor shock reduction ceiling support according to the present invention is based on the energy dissipation caused by the shear deformation of the constrained viscoelastic damping device shown in FIGS. 1A and 1B and the bending deformation of the non-constrained viscoelastic damping device shown in FIGS. 2A and 2B. Due to energy dissipation, vibration and noise of the bottom plate are reduced.

도 3은 본 발명의 구속형 점탄성 감쇠장치의 거동을 나타내는 개략도로서, 상기 도면에 나타낸 바와 같이, 바닥판(1)과 감쇠 시트(20) 그리고 하부의 H빔(20)(구속층)으로 구성되어, 상기 바닥판(1)의 진동에 의하여 바닥판에 휨변형이 발생되면, 상기 감쇠 시트(20)는 구속층과 바닥판의 변형차에 의하여 전단변형이 발생되고, 발생된 상기 전단변형으로부터 감쇠재료가 가지고 있는 고유의 전단변형 에너지 흡수능력에 의해 진동에너지가 저감되며, 결과적으로 소음저감의 효과를 갖게 되는 것이다.3 is a schematic view showing the behavior of the constrained viscoelastic damping device of the present invention, which is composed of a bottom plate 1, a damping sheet 20 and a lower H beam 20 (constraining layer), as shown in the figure. When bending deformation occurs in the bottom plate due to the vibration of the bottom plate 1, the damping sheet 20 generates shear deformation due to the deformation difference between the restraint layer and the bottom plate, and attenuates from the shear deformation generated. Vibration energy is reduced by the inherent shear deformation energy absorption capacity of the material, resulting in the effect of noise reduction.

도 4는 본 발명의 비구속형 점탄성 감쇠장치의 거동을 나타내는 개략도로서, 상기 도면에 나타낸 바와 같이, 바닥판(1)과 감쇠 시트(20)로 구성되어, 상기 바닥판(1)의 진동에 의하여 바닥판에 휨변형이 발생되면, 상기 감쇠시트 또한 휨변형이 발생되며, 발생된 상기 휨변형에 의하여 감쇠시트가 가지고 있는 고유의 휨변형 에너지 흡수능력에 의해 진동과 소음이 저감되는 것이다.FIG. 4 is a schematic view showing the behavior of the non-constrained viscoelastic damping device of the present invention. As shown in the drawing, the bottom plate 1 and the damping sheet 20 are formed by vibration of the bottom plate 1. When the bending deformation occurs in the bottom plate, the damping sheet also causes the bending deformation, and the vibration and noise are reduced by the inherent bending deformation energy absorption capacity of the damping sheet.

도 5는 본 발명의 구속형 점탄성 감쇠장치가 바닥판에 설치된 상태를 나타내는 실물사진이고, 도 6은 본 발명의 구속형 점탄성 감쇠장치에서 감쇠 시트가 고무판으로 이루어져 바닥판에 설치된 상태를 나타내는 실물사진이며, 도 7은 본 발명의 구속형 점탄성 감쇠장치에서 감쇠 시트가 우레탄으로 이루어진 상태를 나타내는 실물사진이다.5 is a physical picture showing a state in which the constrained viscoelastic damping device of the present invention is installed on the bottom plate, and FIG. 6 is a physical picture showing a state in which the damping sheet is installed on the bottom plate of the constrained viscoelastic damping device of the present invention. 7 is a real picture showing a state in which the damping sheet is made of urethane in the constrained viscoelastic damping device of the present invention.

상기 도면에 나타낸 바와 같이 본 발명의 구속형 점탄성 감쇠장치를 바닥판에 설치한 상태에서 실험을 실시하여 그 결과를 도 8에 나타내었다.As shown in the figure, the experiment was performed in a state where the constrained viscoelastic damping device of the present invention was installed on the bottom plate, and the results are shown in FIG.

즉, 도 8은 본 발명의 구속형 점탄성 감쇠장치에서 감쇠 시트를 고무판과 우레탄을 각각 채용 사용하였을 때의 중량충격음과 본 발명의 감쇠장치가 없는 일반 벽식 바닥판과의 중량충격음을 비교한 그래프를 나타낸 것이다.That is, Figure 8 shows a graph comparing the weight impact sound when using the damping sheet in the restraint type viscoelastic damping device of the present invention employing a rubber plate and urethane, respectively, and the weight impact sound of a general wall floor plate without the damping device of the present invention will be.

상기 도 8에 나타난 바와 같이, 본 발명의 구속형 점탄성 감쇠장치가 없는 일반 벽식 바닥판에 비해 본 발명의 구속형 점탄성 감쇠장치가 설치되었을 경우 소음이 저감되는 것을 알 수 있었다.As shown in FIG. 8, it can be seen that noise is reduced when the constrained viscoelastic damping device of the present invention is installed as compared to the general wall deck without the constrained viscoelastic damping device of the present invention.

특히, 감쇠 시트로써 고무판을 채용한 것이 우레탄의 채용 보다 소음저감에 더 효과적인 것을 알 수 있었다.In particular, it was found that employing a rubber sheet as the damping sheet is more effective in noise reduction than employing urethane.

또한, 상기 도면의 그래프에서 알 수 있듯이 본 발명의 구속형 점탄성 감쇠 장치는 바닥판의 중량충격음의 문제가 크게 나타나는 100Hz 미만의 소음에서 저감효과를 크게 나타내었다.In addition, as can be seen in the graph of the drawing, the restraint type viscoelastic damping device of the present invention exhibited a large reduction effect at a noise of less than 100 Hz, which is a problem of weight impact sound of the bottom plate.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러가지 치환, 변형 및 변경이 가능하다는 것이 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

이상에서와 같이 본 발명의 바닥충격음 저감 천정지지용 점탄성 감쇠장치는, 공동주택의 바닥판 진동을 효과적으로 흡수함으로써, 바닥충격음의 발생을 효율적으로 줄일 수 있다.As described above, the viscoelastic damping device for floor impact sound reduction ceiling support according to the present invention can effectively reduce the generation of floor impact sound by effectively absorbing the floor plate vibration of the apartment house.

Claims (5)

구조물의 바닥판 하단면에 점탄성 감쇠 재료가 접착되어 이루어진 것을 특징으로 하는 바닥충격음 저감 천정지지용 점탄성 감쇠장치.A viscoelastic damping device for floor shock reduction ceiling support, characterized in that the viscoelastic damping material is bonded to the bottom surface of the bottom plate of the structure. 제1항에 있어서, 상기 점탄성 감쇠 재료를 사이에 두고 상기 바닥판에는 보강재가 더 결합되어 이루어진 것을 특징으로 하는 바닥충격음 저감 천정지지용 점탄성 감쇠장치.The viscoelastic damping device according to claim 1, wherein a reinforcing material is further coupled to the bottom plate with the viscoelastic damping material interposed therebetween. 제1항 또는 제2항에 있어서, 상기 점탄성 감쇠 재료는 고무나 우레탄 재질의 얇은 판으로 구성된 것을 특징으로 하는 바닥충격음 저감 천정지지용 점탄성 감쇠장치.The viscoelastic damping device for floor impact sound reduction ceiling support according to claim 1 or 2, wherein the viscoelastic damping material is made of a thin plate made of rubber or urethane. 제2항에 있어서, 상기 바닥판에 결합되는 보강재는 H빔이나 ㄱ형강으로 이루어진 것을 특징으로 하는 바닥충격음 저감 천정지지용 점탄성 감쇠장치.3. The viscoelastic damping device for floor shock reduction ceiling support according to claim 2, wherein the reinforcing material coupled to the bottom plate is made of H beam or a-beam. 제3항에 있어서, 상기 점탄성 감쇠 재료는 바닥판의 진동이 집중되는 곳에 부분적으로 접착되는 것을 특징으로 하는 바닥충격음 저감 천정지지용 점탄성 감쇠장치.4. The viscoelastic damping device for floor impact sound reduction ceiling support according to claim 3, wherein the viscoelastic damping material is partially bonded to a place where vibration of the bottom plate is concentrated.
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Publication number Priority date Publication date Assignee Title
KR102223415B1 (en) * 2020-05-22 2021-03-04 주식회사 포스코건설 Ceiling corner bass trap for reduction of floor impact sound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102223415B1 (en) * 2020-05-22 2021-03-04 주식회사 포스코건설 Ceiling corner bass trap for reduction of floor impact sound

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