KR100718701B1 - Plate for sound insulation - Google Patents

Plate for sound insulation Download PDF

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KR100718701B1
KR100718701B1 KR1020050114872A KR20050114872A KR100718701B1 KR 100718701 B1 KR100718701 B1 KR 100718701B1 KR 1020050114872 A KR1020050114872 A KR 1020050114872A KR 20050114872 A KR20050114872 A KR 20050114872A KR 100718701 B1 KR100718701 B1 KR 100718701B1
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South Korea
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noise reduction
construction
building
impact sound
reduction material
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KR1020050114872A
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Korean (ko)
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이길영
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주식회사 삼양수지
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)

Abstract

본 발명은 건축물의 층간 소음저감재에 관한 것으로서, 두께가 얇아 시공이 쉬움으로써, 그 생산성 및 시공이 용이하여 결국 시공비를 저감할 수 있는 건축물의 층간 소음저감재를 제공하는데 그 목적이 있다.The present invention relates to an interlayer noise reduction material of a building, and has an object of providing an interlayer noise reduction material of a building that is thin and easy to construct, thereby facilitating its productivity and construction and ultimately reducing construction costs.

상기와 같은 목적을 달성하기 위한 본 발명은, 폴리에틸렌 또는 PVC재질로 된 방습기능의 상부부재; 상기 상부부재의 아래쪽에 적층되는 것으로서, 폴리에스터 재질로 된 중간부재; 상기 중간부재의 아래쪽에 적층되는 것으로서, 발포폴리스틸렌 또는 발포폴리프로필렌 재질로 된 하부부재를 포함하여 이루어진 것을 특징으로 한다.The present invention for achieving the above object, the upper member of the moisture-proof function made of polyethylene or PVC material; An intermediate member made of a polyester material and stacked below the upper member; As laminated below the intermediate member, characterized in that it comprises a lower member made of expanded polystyrene or expanded polypropylene.

기존 공법은 습식구조이며, 습식구조(물공사)란 기포공사를 일컬음이고 경량충격음이 58dB이 나오나 중량충격음에는 50dB이 못미치고 중량충격음을 만족하려면 기존공법을 포기하는 상황이며, 여러 가지 복합소재만이 제대로 효능을 볼 수 있는 상황이다.The existing method is a wet structure, and the wet structure (water construction) refers to the bubble construction and the light impact sound is 58 dB, but the weight impact sound is less than 50 dB and the existing construction method is abandoned to satisfy the heavy impact sound. This is a situation where you can see the benefits.

본 발명에 따른 소음저감재는, 기존 공법을 이용한 방법으로 중량충격음의 기준을 만족할 수 있는 구조이다.Noise reduction material according to the present invention is a structure that can satisfy the standard of the weight impact sound by the method using the existing method.

아파트, 건축물, 건물, 층간소음, 차음재, 소음저감재 Apartment, Architecture, Building, Floor Noise, Sound Insulation Material, Noise Reduction Material

Description

건축물의 층간 소음저감재{Plate for sound insulation}Interlayer noise reduction material of building {Plate for sound insulation}

도 1은 종래 건축물의 층간 구조를 나타낸 개략 단면도.1 is a schematic cross-sectional view showing the interlayer structure of a conventional building.

도 2는 종래 층간 소음저감재의 단면도.2 is a cross-sectional view of a conventional interlayer noise reduction material.

도 3은 본 발명에 따른 건축물의 층간 소음저감재 구성을 나타내기 위한 부분 분리사시도. Figure 3 is a partially separated perspective view for showing the inter-layer noise reduction material configuration of the building according to the invention.

도 4는 도 3의 결합단면도.4 is a cross-sectional view of the combination of FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

20 : 층간 소음저감재 22 : 방습기능의 상부부재20: interlayer noise reduction material 22: upper member of the moisture-proof function

24 : 중간부재 26 : 하부부재24: intermediate member 26: lower member

26a : 볼록부 26b : 오목부26a: convex portion 26b: concave portion

본 발명은 건축물의 층간 소음저감재에 관한 것으로서, 보다 상세하게는 두께가 얇아 시공이 쉬움으로써, 그 생산성 및 시공이 용이하여 결국 시공비를 저감 할 수 있는 건축물의 층간 소음저감재에 관한 것이다.The present invention relates to an interlayer noise reduction material of a building, and more particularly, to an interlayer noise reduction material of a building, which is thin and easy to construct, which enables easy productivity and construction, thereby reducing construction costs.

일반적으로, 아파트나 빌라 등 공동주택의 건물 구조체에 가해지는 충격음은 사람의 보행, 문의 개폐, 기물의 이동이나 설비기기의 가동 혹은 정지 등이 충격의 원인이 되어 발생되는 고체전달음이 사방으로 전달되게 되고, 이로 인하여 건물구조체의 표면을 진동시킴은 물론 공기전달음으로 전환되어 주변의 사람들 귀에 들리게 될 때, 소음으로 인식되게 된다.In general, the impact sound that is applied to the building structure of apartment houses such as apartments and villas is transmitted to all directions of solid sound generated by people walking, opening and closing of doors, moving objects, starting or stopping equipment, etc. This causes the surface of the building structure to vibrate, as well as being switched to airborne sound, which is perceived as noise when it is heard by people around.

예를 들어, 물건의 낙하 등의 충격이 바닥에 가해지거나 의자를 옮기는 소리 등은 고체전달음을 발생시키고, 이 고체전달음은 바닥슬래브와 벽체를 통해 인접한 다른 방들로 전달되되, 특히 바닥슬래브를 통해 아래층에 전달되는 것을 층간소음이라 한다.For example, the impact of falling objects on the floor or the sound of moving chairs generates solid sound, which is transmitted through the floor slab and the walls to other adjacent rooms, especially the floor slab. Passed through the lower floor is called interlayer noise.

요즘에는 이러한 층간소음문제가 공동주택에서 심각하게 대두됨에 따라 주택건설기준 등에 관한 규정이 더욱 강화,개정되기에 이르렀다.These days, the noise level between floors has become serious in apartments, and the regulations on housing construction standards have been strengthened and revised.

상기 규정에는 각 층간의 바닥충격음이 경량충격음은 58데시벨(dB)이하이어야 하고, 중량충격음은 50데시벨(dB)이하이거나 건설교통부장관이 정하여 고시하는 표준바닥구조로 하여야 한다고 명시되어 있다.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.

이와 같이, 심각하게 대두되는 층간소음을 줄여 최소화하기 위한 통상적인 층간 바닥구조들이 제시되어 있는데, 이러한 기존의 통상적인 층간 바닥구조는, 도 1에 도시된 바와 같이, 콘크리트슬래브(1)를 기준으로 상부에 경량기포 콘크리트층(2)이 형성되고, 그 상단으로 난방용 배관(3)과 마감용 몰탈층(4)이 형성되며, 그 위에 모노륨이나 원목, 타일 등의 장식재로 된 바닥장식층(5)으로 구성된다.As such, conventional interlayer floor structures are proposed for minimizing and minimizing severely raised floor noise. Such conventional interlayer floor structures are based on the concrete slab 1, as shown in FIG. Lightweight foam concrete layer (2) is formed on the upper part, heating pipe (3) and finishing mortar layer (4) is 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

상기한 구조의 층간바닥구조는 콘크리트 슬래브(1) 상부에 형성된 경량기포 콘크리트층(2)이 충격음이나 소음을 감쇄시키는 작용을 담당하고 있으나, 그 효과가 미미한 실정이다.The interlayer floor structure of the above structure is a lightweight foam concrete layer (2) formed on the concrete slab (1) is responsible for attenuating the impact sound or noise, but the effect is insignificant.

이로 인해 보다 효과적으로 소음이나 충격을 차단하기 위하여, 상기 콘크리트 슬래브와 경량기포콘크리트 사이에 층간충격음 완충재를 형성하는 시공방법이 개시되어 있다.For this reason, in order to more effectively block noise and impact, a construction method for forming an interlayer shock-absorbing material between the concrete slab and lightweight foamed concrete is disclosed.

종래의 층간충격음 완충재(10)는, 다양한 구조로서 제공되고 있으며, 대표적으로는 도 2에서와 같이 상,하부에 일정두께를 갖는 하드(hard)한 스티로폼재(11,12)들을 두고, 그 사이에 공극이 큰 폴리에스터 재질의 중간차음재(13)를 샌드위치 형태로 끼워 넣은 구조로 이루어져 있다.The conventional interlayer shock sound absorbing material 10 is provided as various structures, and typically has hard styrofoam materials 11 and 12 having a predetermined thickness in the upper and lower portions, as shown in FIG. The intermediate sound insulation material 13 of the polyester material with a large gap is sandwiched in a sandwich form.

따라서, 상기 상,하부의 스티로폼재(11,12)와 더불어 중간차음재(13)가 충격 및 진동 등을 흡수하여 층간소음을 저감시키게 된다.Therefore, the middle sound insulating material 13, together with the upper and lower styrofoam materials 11 and 12, absorbs shocks and vibrations, thereby reducing interlayer noise.

그러나, 상기한 종래의 층간충격음 완충재는, 상부 스티로폼재와, 중간차음재, 하부 스티로폼재가 적층되어 있는 바, 그 두께가 두꺼워 시공이 어려움으로써, 결국 시공비가 많이 드는 문제점이 있었다.However, the above-described conventional interlayer shock sound absorbing material, the upper styrofoam material, the middle sound insulation material, the lower styrofoam material is laminated, bar thickness is difficult to build, there is a problem in that the construction cost is high.

이에, 본 발명은 상기와 같은 제반 문제점에 착안하여 안출된 것으로서, 두께가 얇아 시공이 쉬움으로써, 그 생산성 및 시공이 용이하여 결국 시공비를 저감할 수 있는 건축물의 층간 소음저감재를 제공하는데 그 목적이 있다.Accordingly, the present invention has been devised in view of the above-mentioned problems, the thickness is thin, easy to install, the productivity and construction is easy, the end to provide a noise reduction material of the building that can reduce the construction cost in the end. There is this.

상기와 같은 목적을 달성하기 위한 본 발명은, 폴리에틸렌 또는 PVC재질로 된 방습기능의 상부부재; 상기 상부부재의 아래쪽에 적층되는 것으로서, 폴리에스터 재질로 된 중간부재; 상기 중간부재의 아래쪽에 적층되는 것으로서, 발포폴리스틸렌 또는 발포폴리프로필렌 재질로 된 하부부재를 포함하여 이루어진 것을 특징으로 한다.The present invention for achieving the above object, the upper member of the moisture-proof function made of polyethylene or PVC material; An intermediate member made of a polyester material and stacked below the upper member; As laminated below the intermediate member, characterized in that it comprises a lower member made of expanded polystyrene or expanded polypropylene.

이 경우, 상기 하부부재의 저면은 직선방향의 볼록부와 오목부가 연속해서 순차적으로 형성되는 것이 바람직하다.In this case, it is preferable that the bottom face of the lower member is formed in succession with the convex portion and the concave portion in the linear direction successively.

또한, 상기 상부부재의 두께가 가장 얇고, 상기 하부부재의 두께가 가장 두껍게 형성된 것이 바람직하다.In addition, the thickness of the upper member is the thinnest, it is preferable that the thickness of the lower member is formed the thickest.

이하, 본 발명의 바람직한 실시 예를 첨부된 예시도면에 의거하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 건축물의 층간 소음저감재 구성을 나타내기 위한 부분 분리사시도이고, 도 4는 도 3의 단면도이다.Figure 3 is a partially separated perspective view for showing the construction of the floor noise reduction material of the building according to the invention, Figure 4 is a cross-sectional view of FIG.

도시된 바와 같이, 본 발명에 따른 건축물의 층간 소음저감재(20)는, 폴리에틸렌(PE) 또는 PVC재질로 된 방습기능의 상부부재(22)와, 폴리에스터 재질로 된 중간부재(24)와, 발포폴리스티렌(EPS : Expandable Polystyrene) 또는 발포폴리프로필렌(EPP : Expandable Polypropylene) 재질로 된 하부부재(26)가 적층,형성되되, 상기 하부부재(26)의 저면은 직선방향의 볼록부(26a)와 오목부(26b)가 연속해서 순차적으로 형성됨으로써, 그 종단면 형상이 파형으로 이루어져 있다.As shown, the inter-layer noise reduction material 20 of the building according to the invention, the upper member 22 of the moisture-proof function made of polyethylene (PE) or PVC material, and the intermediate member 24 made of polyester material and In addition, the lower member 26 made of expanded polystyrene (EPS: Expandable Polystyrene) or expanded polypropylene (EPP: Expandable Polypropylene) is laminated and formed, and the bottom of the lower member 26 has a straight convex portion 26a. And the concave portion 26b are formed in succession sequentially so that the longitudinal cross-sectional shape is corrugated.

따라서, 상기 층간 소음저감재(20)에서 하부부재(26)의 볼록부(26a)가 콘크리트슬래브의 상면과 면접촉을 하게 되고, 상기 오목부(26b)에는 공기층이 존재하게 됨으로써, 충격이 가해질 경우 상기 볼록부(26a)가 압축되면서 오목부(26b) 사이로 펴지는 탄성을 발휘하여 보다 확실하게 충격을 흡수하게 된다.Accordingly, the convex portion 26a of the lower member 26 is in surface contact with the upper surface of the concrete slab in the interlayer noise reduction material 20, and the air layer is present in the concave portion 26b, thereby providing an impact. In this case, as the convex portion 26a is compressed, the convex portion 26a exerts elasticity between the concave portions 26b, thereby absorbing the shock more reliably.

즉, 1차적으로 폴리에틸렌(PE) 또는 PVC재질로 된 방습기능의 상부부재(22)가 충격을 흡수하고, 2차적으로 폴리에스터 재질로 된 중간부재(24)가 충격을 흡수하며, 3차로 발포폴리스티렌(EPS : Expandable Polystyrene) 또는 발포폴리프로필렌(EPP : Expandable Polypropylene) 재질로 된 하부부재(26)가 충격을 흡수하는 3중 충격흡수 구조로 이루어지되, 상기 하부부재(26)는 그 재질특성에 의한 충격을 흡수함은 물론 그 저면의 파형구조로 인하여 탄성을 발휘함으로써 보다 더욱 확실하게 충격을 흡수하게 되어 결국 층간 소음을 보다 효과적으로 차단시키게 된다.That is, the upper member 22 of moisture-proof function made of polyethylene (PE) or PVC material primarily absorbs the shock, and the intermediate member 24 made of polyester material absorbs the shock and foams in the third The lower member 26 made of polystyrene (EPS: Expandable Polystyrene) or expanded polypropylene (EPP) is made of a triple shock absorbing structure that absorbs shock, and the lower member 26 has a material In addition to absorbing the shock caused by the waveform structure of the bottom surface of the elasticity by absorbing the shock more reliably absorbing the shock more effectively to eventually block the interlayer noise.

이 경우, 도 3 내지 도 4에서와 같이 상부부재(22)의 두께가 상대적으로 제일 얇고, 하부부재(26)의 두께가 제일 두껍게 하는 것이 바람직하나, 그 두께에는 한정을 두지 않는다.In this case, it is preferable that the thickness of the upper member 22 is relatively thin and the thickness of the lower member 26 is the thickest as shown in FIGS. 3 to 4, but the thickness is not limited.

이와 같은 구조로 된 층간 소음저감재(20)를 이용하여 시공한 후, 경량충격음과 중량충격음을 시험한 결과, 실험마다 다소의 오차범위가 있기는 하였으나, 대체적으로 주택건설기준에 관한 규정(dB) 이하로 측정되었다.After the construction using the interlayer noise reduction material 20 having such a structure, as a result of testing the light impact sound and the heavy impact sound, although there was a slight error range for each experiment, the regulation on the housing construction standard (dB) ) Was measured below.

이상에서 설명한 바와 같이, 본 발명에 따른 건축물의 층간 소음저감재에 의 하면, 그 구조가 간단하여 제조가 쉬운 구성에 의해 이루어짐으로써, 그 생산성이 향상되고, 전체적으로 그 두께가 얇아져서 시공이 용이한 바, 그 시공성이 향상됨은 물론 시공비가 줄어들게 되는 매우 유용한 효과가 있다.As described above, according to the floor noise reduction material of the building according to the present invention, the structure is simple and is made of a structure that is easy to manufacture, so that the productivity is improved, and the overall thickness thereof is thin, making construction easier. Bar, the workability is improved as well as the construction cost is very useful effect that is reduced.

또한, 충격흡수구조가 3중 구조로 이루어지면서, 최종 3단계에서는 별도의 탄성에 의해 더욱 더 충격을 흡수하는 구조로 이루어짐으로써, 더욱 향상된 층간 소음의 저감효과를 가질 수 있게 된다.In addition, while the shock absorbing structure is made of a triple structure, in the final three stages is made of a structure that absorbs the shock even more by a separate elasticity, it is possible to have a further improved effect of reducing the interlayer noise.

Claims (3)

폴리에틸렌 또는 PVC재질로 된 방습기능의 상부부재;Moisture-proof upper member made of polyethylene or PVC material; 상기 상부부재의 아래쪽에 적층되는 것으로서, 폴리에스터 재질로 된 중간부재;An intermediate member made of a polyester material and stacked below the upper member; 상기 중간부재의 아래쪽에 적층되는 것으로서, 발포폴리스틸렌 또는 발포폴리프로필렌 재질로 이루어지되, 그 저면은 직선방향의 볼록부와 오목부가 연속해서 순차적으로 형성된 하부부재를 포함하여 이루어진 것을 특징으로 하는 건축물의 층간 소음저감재.It is laminated under the intermediate member, it is made of foamed polystyrene or foamed polypropylene material, the bottom surface of the building comprising a lower member formed in successive successive linear convex portion and concave portion Noise reduction material. 삭제delete 삭제delete
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100980142B1 (en) 2008-02-18 2010-09-03 박연준 Shock-absorbing structure increasing contact area for building bottom
KR100987212B1 (en) * 2008-04-28 2010-10-12 엘에스전선 주식회사 Buffer material and Floor impact sound absorbing panel with the same
KR200455458Y1 (en) * 2008-11-27 2011-09-06 이피에스코리아 주식회사 Elastic PTFE interlayer noise reduction buffer with waterproof layer protection sheet
KR20160021630A (en) 2014-08-18 2016-02-26 이다빈 Soundproofing material and manufacturing method thereof and sound insulation structure using soundproofing material
KR101622696B1 (en) 2015-09-22 2016-05-19 (주)동일수지 A soundproofing members for reducing inter layer noise and floor structure using the same
KR20200000901A (en) * 2018-06-26 2020-01-06 주식회사 태화론 Floor cushions for buildings
CN113800582A (en) * 2021-09-28 2021-12-17 西安热工研究院有限公司 Novel noise reduction and bacteriostasis method for water cooling tower

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990010739U (en) * 1997-08-27 1999-03-15 최남희 Sound insulation
KR20010112682A (en) * 2000-06-10 2001-12-21 김창호 Composite floor for waterproof and heat-insulation and the constructing method of the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990010739U (en) * 1997-08-27 1999-03-15 최남희 Sound insulation
KR20010112682A (en) * 2000-06-10 2001-12-21 김창호 Composite floor for waterproof and heat-insulation and the constructing method of the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100980142B1 (en) 2008-02-18 2010-09-03 박연준 Shock-absorbing structure increasing contact area for building bottom
KR100987212B1 (en) * 2008-04-28 2010-10-12 엘에스전선 주식회사 Buffer material and Floor impact sound absorbing panel with the same
CN101571002B (en) * 2008-04-28 2012-07-04 Ls电线有限公司 Buffering material and acoustic panel with the same
KR200455458Y1 (en) * 2008-11-27 2011-09-06 이피에스코리아 주식회사 Elastic PTFE interlayer noise reduction buffer with waterproof layer protection sheet
KR20160021630A (en) 2014-08-18 2016-02-26 이다빈 Soundproofing material and manufacturing method thereof and sound insulation structure using soundproofing material
KR101622696B1 (en) 2015-09-22 2016-05-19 (주)동일수지 A soundproofing members for reducing inter layer noise and floor structure using the same
KR20200000901A (en) * 2018-06-26 2020-01-06 주식회사 태화론 Floor cushions for buildings
KR102176072B1 (en) * 2018-06-26 2020-11-09 주식회사 태화론 Floor cushions for buildings
CN113800582A (en) * 2021-09-28 2021-12-17 西安热工研究院有限公司 Novel noise reduction and bacteriostasis method for water cooling tower

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