Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound...
Transcript of Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound...
![Page 1: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/1.jpg)
Maj 2017
Lund University 2017-12-08Klas Hagberg
![Page 2: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/2.jpg)
Agenda
— INTRO – WSP
— Business Areas
— Regulations
— Building Acoustic in general – design
— Various constructions
— Failure on site
— Other
![Page 3: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/3.jpg)
WSP Acoustics
3
70 consultants in the Swedish business
Approximately 200 consultants in the global
business
Offices in Sweden, Finland, UK, USA, Dubai,
Australia, Canada, South Africa and some
certain persons in other countries
![Page 4: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/4.jpg)
At a glance
4
WSP Acoustics – business areas
—Building acoustics— Environmental noise mapping— Industrial noise mapping— Interior noise—Room acoustics — Electro acoustics—Vibrations
![Page 5: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/5.jpg)
At a glance
5
WSP Acoustics – Building Acoustics
![Page 6: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/6.jpg)
At a glance
6
WSP Acoustics – Environmental and industrial noise
Noise mapping
with CADNA and
SoundPlan
software
![Page 7: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/7.jpg)
At a glance
7
Measurements according to
ISO 10053 and ISO 354
and evaluation according to
ISO 11654 and SS 25269
Se www.acousticfacts.com
WSP Acoustics – interior noise
![Page 8: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/8.jpg)
At a glance
8
Electro Acoustics
Development of new
telephone models for
Sony Mobile……. Not too
much any more
Speech alarm
systems –
requirements and
RASTI
measurements
![Page 9: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/9.jpg)
At a glance
9
Room Acoustics
Room acoustic design of
cinemas
Room acoustic
design in public
areas
![Page 10: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/10.jpg)
At a glance
10
WSP Acoustics Virtual Reality Model
Creates real room models,
incl. auralization. A computer
model show how different
linings on walls and ceilings
appear acoustically in a
room.
Architects and an
acousticians can easily
cooperate in the design of
rooms creating desired
sound properties
Almedahls textiles
![Page 11: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/11.jpg)
At a glance
11
Vibrations
Vibration surveillance
Risk analysis
Measurements
![Page 12: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/12.jpg)
At a glance
12
Building Acoustics
—Only BA itself is a large topic—Design—Measurements—Product knowledge —Various structures and its behaviour—Regulations—etc
![Page 13: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/13.jpg)
At a glance
13
— Några viktiga budskap
— Akustik och vibrationer bestämmer dimensioner hos en konstruktion
—Varför är det 250 mm betong i ett bjälklag?—Varför behövs 200 mm betong i väggarna?—Varför är det ofta HD/F 265 mm?— Etc etc
—Med dessa dimensioner klarar man normalt ljudklass B i Sverige
— Varför blir ett träbjälklag 500 mm tjock (eller 400 med viss optimering)?
— Det är oftast akustiken som bestämmer dimensionerna hos byggdelarna i en byggnad och stegljud och vibrationer är mest kritiskt (åtminstone för lätta träbyggander)
Building Acoustics
![Page 14: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/14.jpg)
At a glance
14
![Page 15: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/15.jpg)
At a glance
15
— Reduktionstal tersband Frekvenser deciBel
— Beräkningar Mätningar akustiker
15
Ljudkonsultens rapporter…
![Page 16: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/16.jpg)
At a glance
16
Building Acoustics – Regulations
SS 25267 and SS 25268
Class A Class B BBR Class D
National building code (in Sweden BBR, BFS 1993:57 including revisions until 2017)
To be applied by local authorities, using certain application guidelines
To be applied in certain exceptional rebuilding projects after specific reconsideration
Optional classes for commissioner of building projects to achieve especially good sound climate
![Page 17: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/17.jpg)
At a glance
17
Building Acoustics - Regulations
Commissioner of building
projects
BBR, SS 25267 and SS 25268 –
sound class technical requirements
Controller of building projects
SS 25267 and SS 25268 Catalogue–methods concerning calculations and measurements
Project manager
SS-EN 12354 Calculation methods
SS 25267 and SS 25268
– Annexes including
project advice
Manufacturer
SS-EN ISO 140 Measurement methods to
secure the acoustical quality of building
products
Contractor
Educating employees, assignments from project
manager – quality plan, internal and external
quality control
![Page 18: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/18.jpg)
At a glance
18
Sound insulation
Sound insulation / sound reduction index, R
Should be as high as possible
Impact sound level, Ln
Should be as low as possible
![Page 19: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/19.jpg)
At a glance
19
Sound reduction indexThe sound reduction index is measured / calculated for each single 1/3 octave
value according to the formula:
R=Lp1-Lp2+10*log(S/A)
- or the Standardized level diff.
DnT=Lp1-Lp2+10*log(T/T0)
Lp1 = Sound level in the sending room
Lp2 = Sound level in the receiving room
S = separating area
A = sound absorption area in the receiving room
Then ”the weighted sound reduction value” is calculated acc to SS-EN ISO 717-1
![Page 20: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/20.jpg)
At a glance
20
Weighted values SS-EN ISO 717-1
Different measures
Rw
R´w
DnTw
DnTw+C50-3150
RA
R´A
RA,tr
R´w+C
R´w+C50-3150
R´w+Ctr
R´w+Ctr,50-3150
R´w+Ctr,50-5000
etc.
A political way to meet an agreement
![Page 21: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/21.jpg)
At a glance
21
Spectrum adaptation terms in diagram
-50
-40
-30
-20
-10
0
Lij d
B
Frekvens, Hz
Spektrum för att beräkna C och Ctr (50-3150 Hz)
Spektrum 01
spektrum 02
![Page 22: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/22.jpg)
At a glance
22
Same value, Rw – different shapes
reduktionstal R
0
10
20
30
40
50
60
70
80
50 80 125
200
315
500
800
1250
2000
3150
[dB]
frekvens [Hz]
200 betong Rw 58 dB
D 120/95 202 M95
Rw 58 dB
![Page 23: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/23.jpg)
At a glance
23
Field value or laboratory value
Depending on how the building products are connected to eachother the final sound insulation might differ a lot from a laboratory measurement
Example:
Gypsum wall DD 70/70 303 M140 - laboratory
Rw=72 dB
In a building with a floor structure of 160 mm concrete
R’w=55 dB SI decreases 17 dB!
Apply an upper floor construction for instance GIHA
R’w=58 dB an improvement 3 dB!
![Page 24: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/24.jpg)
At a glance
24
Impact sound level, Ln
The impact sound level is measured / calculated in each single 1/3 octave band level from 50-5000 Hz :
Ln=Lp+10*log (A/10) or
LnT=Lp+10*log (T/0,5)
Lp = sound level in the receiving roomA = Sound absorption area in the receiving roomT = Reverberation time in the receiving room
![Page 25: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/25.jpg)
At a glance
25
Impact sound level SS-EN ISO 717-2
Different measures
Ln
L´n,w
L´n,w +CI
L´n,w +CI,50-2500
L´nT,w
L´nT,w +CI,50-2500
![Page 26: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/26.jpg)
At a glance
26
—The same is valid for impact sound
L´nw, wood ≠ L´nw, concrete
— Even if the single numbers are identical
Impact sound
![Page 27: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/27.jpg)
At a glance
27
Impact Sound – Same value but different shapes
Lnw =58 dB
Lnw+CI,50-2500 = 62 dB
Lnw =58 dB
Lnw+CI,50-2500 = 57 dB
![Page 28: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/28.jpg)
At a glance
28
EN 12354 – BASTIAN
![Page 29: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/29.jpg)
At a glance
29
Building acoustics
How does the sound appear in various structures?
• Sound insulation
• Room acoustics
• Sound propagation from installations
• Sound levels from traffic / facade sound insulation
![Page 30: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/30.jpg)
At a glance
30
Typical structures
— Prefabricated massive concrete
— Concrete casted in situ
— Prefabricated hollow concrete on steel structures with light weight walls
— Prefabricated hollow concrete and massive concrete walls
— Light weight structures (CLT / Joist assemblies)
— Etc etc ……..
![Page 31: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/31.jpg)
At a glance
31
Building Acoustics - Dwellings
”Chabo” 479
dwellings for
students in
Gothenburg
close to
Chalmers
University of
technology
Designed to
meet the new
minimum
requirements
in Sweden
![Page 32: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/32.jpg)
At a glance
32
HDF + upper floor + light weight walls
HD/F 120/19, 330 kg
minimum
DD 70/70 202 M140
Measurement results?
![Page 33: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/33.jpg)
At a glance
33
![Page 34: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/34.jpg)
At a glance
34
Emilsborg
![Page 35: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/35.jpg)
At a glance
35
Prefabricated massive concretePlattbärlag / HD/F
eller likvärdigt
Concrete 200 mm
![Page 36: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/36.jpg)
At a glance
36
Emilsborg
R´w+C50-3150 = 60 dB
![Page 37: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/37.jpg)
At a glance
37
![Page 38: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/38.jpg)
At a glance
38
Juvelkvarnen
![Page 39: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/39.jpg)
At a glance
39
Juvelkvarnen
0
10
20
30
40
50
60
70
80
50 80 125
200
315
500
800
1250
2000
3150
5000
Reduktionstal (50-
5000 Hz)
Ref (100-3150 Hz)
![Page 40: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/40.jpg)
At a glance
40
Juvelkvarnen
![Page 41: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/41.jpg)
At a glance
41
Building Acoustics - Dwellings
![Page 42: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/42.jpg)
At a glance
42
Tested products
![Page 43: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/43.jpg)
At a glance
43
Building Acoustics - Dwellings
Winner of ”The building
of the year” 2006!
Vavskedsgatan 10-12 in
Lunden, Gothenburg
Construction:
Concrete walls and floor
structure built up by HD/F
120/27 (365 kg/m2) + GIHA
sound floor
Designed to meet sound class B, 4 dB higher than minimum requirements
![Page 44: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/44.jpg)
At a glance
44
Different Wooden structure systems
— Volume elements— Derome / Plusshus— Lindbäcks — Moelven— Etc etc
— Casette systems— Masonite— Trä8 (Moelven)— Etc etc
— CLT— Martinsons— StoraEnso
![Page 45: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/45.jpg)
Materials and Systems
Joist assemblies – a small sample of all available options
CLT assemblies –a small sample of all available options
![Page 46: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/46.jpg)
At a glance
46
Masonite Flexible Building system (MFB)
![Page 47: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/47.jpg)
At a glance
47
![Page 48: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/48.jpg)
CLT Wood Example
— Example
![Page 49: Lund University 2017-12-08 Klas Hagberg€¦ · At a glance 19 Sound reduction index The sound reduction index is measured / calculated for each single 1/3 octave value according](https://reader034.fdocuments.us/reader034/viewer/2022042406/5f203915235b901b3512fd58/html5/thumbnails/49.jpg)
Summering
— Byggadsakustik är spännande och oerhört utmanande — Byggnadsakustiken dimensionerar en byggnad— Kan arbeta med producerande företag (utveckla nya
lösningar)— Kan arbeta med systemutveckling— Avancerad projektering i förtätningar (projekten blir mer
komplexa)— Och mycket mer..........
49