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Propagation of sound in residential buildings Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

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Presentation on theme: "Propagation of sound in residential buildings Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г."— Presentation transcript:

1 Propagation of sound in residential buildings Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

2 Content 1.Basics for outdoor propagation 2.Indoor propagation sources. 3.In detail indoor soundproofing techniques 4. Requirements and regulations 5. Example Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

3 Map of noise pollution in Sofia city Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

4 External sources of noise La,eq = 90 dB La,eq = 77 dB La,eq = 85 dB La,eq = 84 dB Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

5 Basic rules for position of buildings near to noise source Rooms orientation Orientation of the premises Bedroom premises are orientated in direction opposite to the sound sources NO YES Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

6 Basic rules for external buildings elements near to noise source Solid railings Sound absorbing ceiling Maximal shifted windows Transparent barriers in low floors High index of Sound insulation of the facade elements NO YES Traffic Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

7 Internal sources of noise Lp = 76 dB Lp = 99 dB Lp = 71 dB Lp = 68 dB Lp = 94 dB Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

8 Ways of propagation of sound in buildings Direct sound transition Flanking ways of sound transmission Sound transmitted by installation openings between floors Standard describing the methodology for calculation of bypass roads: EN 12354 Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

9 Index of sound insulation of partition elements between two premises

10 Index of sound insulation of partition elements between two premises with elastic separated elements Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

11 The sound pressure in receiver room with loud speech Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

12 Application of sound reduction system to direct element Partition element from aerated concrete blocks with total thickness = 135 mm The noise reduction system with thickness 72.5 mm : -50 mm air gap filled with 40 mm mineral wool -10 mm gypsum-faser board -12.5 mm gypsum board -Rubber hangers -Metal construction Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

13 The sound pressure in receiving room with loud speech L2 = 41.2 dB(A) Adding of sound reducing system to partition element d of side Of the reception premise Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

14 The sound pressure in reception premise with loud speech L2 = 39.9 dB(A) Adding of sound reduction system to partition element d, f1 and f2 from side of receiving room Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

15 Adding of sound reduction system to horizontal elements Reinforced concrete plate with coat 150 mm Sound reducing system with thickness: 72.5 mm -50 mm air gap filled with 40 mm mineral wool -10 mm gypsum -phaser board -12.5 mm gypsum board -Rubber hangers -Metal standers construction Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

16 Sound pressure in receiving room with loud speech L2 = 32.7 dB(A) Adding of sound reducing system to partition element d, f1, f2, f3 и f4 from side of reception premise Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

17 Sound pressure in reception premise with loud speaking L2 = 38 dB(A) Partition wall d from dense ceramic brick with total thickness 260 mm Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

18 Regulations requirements for permissible sound pressure инж. Цветан Недков, УАСГ София 2014 г.

19 Example distribution and kind of partition elements инж. Цветан Недков, УАСГ София 2014 г. Спалня Детска стая Антре Баня Кухня Дневна Баня Кухня Дневна Баня Спалня Дневна Баня НЕ ДА Dense ceramic brick 12/25 sm Aerocrete brick / Gypsum wall 12 / 20 / 25 sm Hollow ceramic brick / Termo insulation 25 / 38 см Lining tape under walls Антре

20 Minimal requirements for insulation of partition elements Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.

21 Thank you for your attention! Tsvetan Nedkov, Ivaylo Hristev UACG 2014 г.


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