1、 STD-BSI BS EN 12354-1-ENGL 2000 W Lh24bb9 08b0854 L50 W BRITISH STANDARD Building acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 1: Airborne sound insulation between rooms The European Standard EN 12354-1:2000 has the status of a British Standard
2、 ICs 91.120.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 123541:2000 STDmBSI BS EN 12354-1-ENGL 2000 Lb24bb 08b0855 097 m direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes in
3、to effect on 15 July 2000 Amd. No. O BSI 07-2000 BS EN 12364-1:ZOOO Date Comments National foreword This British standard is the official English language version of EN 12354-1:2000. The UK participation in its preparation was entrusted by Technical Committee BDW, General building codes, to Subcommi
4、ttee B/209/18, Sound insulation, which has the responsibility to. - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep th
5、e UK interests Wormed; them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Ca
6、talogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” faciiity of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for thei
7、r correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 63 and a back cover. The BSI copyright notice displayed in this document i
8、ndicates when the document was last issued. ISBN O 580 35182 3 STD-BSI BS EN L2354-L-ENGL 2000 3b24bb9 ObO65b T23 6 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12354-1 April 2000 ICs 91.120.20 English version Building acoustics - Estimation of acoustic performance of buildings from the perf
9、ormance of elements - Part 1 : Airborne sound insulation between rooms Acoustique de btiment - Calcul de la performance acoustique des btiments partir de la performance des lments - Partie 1: Isolement acoustique aux bruits ariens entre des locaux Bauakustik - Berechnung der akustischen Eigenschafte
10、n von Gebuden aus den Bauteileigenschaflen - Teil 1 : Lutschalldmmung zwischen Rumen This European Standard was approved by CEN on 20 August 1999. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
11、a national standard without any alteration. Up-todate lists and bibliographical references concerning sich national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version
12、in any other language made by traislation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as tie official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France,
13、Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMIlTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels O 2000 CEN
14、 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12354-1 :2000 E Page 2 EN 12354-1 :2000 Contents Foreword . .- . 4 1 2 3 3.1 3.1.1 3.1.2 3.1.3 3.1.4 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.3 3.3.1 3.3.2 3.3.3 3.3.4 3.3.5 3.3.6
15、 4 4.1 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.3 4.3.1 4.3.2 4.3.3 4.4 4.4.1 4.4.2 4.4.3 5 Scope . .-. 5 Normative references . - 5 Relevant quantities - . 6 Quantities to express building performance 6 Apparent sound reduction index R 6 Normalized level difference Dn . 7 Relation between quantities . 7
16、 Quantities to express element performance . 7 Sound reduction index R . 7 Sound reduction index improvement AR . 7 Element normalized level difference Dn, e 8 Normalized level difference for indirect airborne transmission Dn, s . 8 Flanking normalized level difference Dn, f 8 Vibration reduction in
17、dex the single number rating can be determined from the calculation results. A simplified model with a restricted field of application is deduced from this, calculating directly the single number rating, using the single number ratings of the elements. This document describes the principles of the c
18、alculation scheme, lists the relevant quantities and defines its applications and restrictions. It is intended for acoustical experts and provides the framework for the development of application documents and tools for other users in the field of building construction, taking into account local cir
19、cumstances. The calculation models described use the most general approach for engineering purposes, with a clear link to measurable quantities that specify the performance of building elements. The known limitations of these calculation models are described in this document. Users should, however,
20、be aware that other calculation models also exist, each with their own applicability and restrictions. The models are based on experience with predictions for dwellings; they could also be used for other types of buildings provided the construction systems and dimensions of elements are not too diff
21、erent from those in dwellings. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, sub
22、sequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 201 40-1 O, Acoustics - Measurement of sound insulation in build
23、ings and of building elements - Part 1 O: Laboratory measurement of airborne sound insulation of small building elements (IS0 140-10:1991). EN IS0 140-1, Acoustics - Measurement of sound insulation in buildings and of building elements - Part 1: Requirements for laboratory test facilities with suppr
24、essed flanking transmission (IS0 140-1 :1997). EN IS0 140-3, Acoustics - Measurement of sound insulation in buildings and of building elements - Part 3: Laboratory measurements of airborne sound insulation of building elements (IS0 140-3:1995). EN IS0 140-4, Acoustics - Measurement of sound insulati
25、on in buildings and of building elements - Part 4: Field measurements of airborne sound insulation between rooms (IS0 140-4:1998). EN IS0 717-1, Acoustics - Rating of sound insulation in buildings and of building elements - Pari 1: Airborne sound insulation (IS0 71 7-1:1996). prEN IS0 10848-1, Acous
26、tics - Laboratory measurement of the flanking transmission of airborne and impact noise between adjoining rooms - Part 1: Frame document (ISO/DIS 10848-1:1998). O BSI 07-2000 STD-BSI BS EN L2354-L-ENGL 2000 I1624667 OBbOBbL 390 Page 6 EN 12354-1 :2000 3 Relevant quantities 3.1 Quantities to express
27、building performance The sound insulation between rooms in accordance with EN IS0 1404 can be expressed in terms of several related quantities. These quantities are determined in frequency bands (one-third octave bands or octave bands) from which the single number rating for the building performance
28、 can be obtained in accordance with EN IS0 71 7-1 , for instance RW, DnT,w or (DnT,w + C). 3.1.1 Apparent sound reduction index R Minus ten times the common logarithm of the ratio of the total sound power Wtot transmitted into the receiving room to the sound power Wq which is incident on a separatin
29、g element. This ratio is denoted by z. where: r = W, I W, In general the total sound power transmitted into the receiving room consists of the power radiated by the separating element, the flanking elements and other components. The index R it is normally determined from measurements according to: R
30、=4 -L2 +10 Ig- ss dB A where: LI is the average sound pressure level in the source room, in decibels; L2 is the average sound pressure level in the receiving room, in decibels; A is the equivalent sound absorption area in the receiving room, in square metres; S, is the area of the separating element
31、, in square metres. 3.1.2 Standardized level difference Dn The difference in the space and time average sound pressure levels produced in two rooms by one or more sound sources in one of them, corresponding to a reference value of the reverberation time in the receiving room. T DnT =4 -L2 +10 Ig- dB
32、 To where: T is the reverberation time in the receiving room, in seconds; (3) To is the reference reverberation time; for dwellings given as 0,5 s. O BSI 07-2000 STD-BSI BS EN 12354-1-ENGL 2000 m Lb24bb9 OBbDBb2 227 m Page 7 EN 12354-1 :2000 3.1.3 Normalized level difference D, The difference in the
33、 space and time average sound pressure levels produced in two rooms by one or more sound sources in one of them, corresponding to the reference equivalent sound absorption area in the receiving room. A A, 0, =i, -4 -10 lg- dB where: Ao is the reference absorption area given as 1 O d 3.1.4 Relation b
34、etween quantities The level differences are related to the apparent sound reduction index as follows: ,=R+10 lg%=R+10 Ig- 10 dB ss ss 016 V 032V dB D, =R+10 lg-=R+lO lg- To ss ss (4) where: V is the volume of the receiving room, in cubic metres. It is sufficient to estimate one of these quantities i
35、n order to deduce the other ones. In this document the apparent sound reduction index R is chosen as the prime quantity to be estimated. 3.2 Quantities to express element performance The quantities expressing the Performance of the elements are used as part of the input data to estimate building Per
36、formance. These quantities are determined in one-third octave bands and can also be expressed in octave bands. In relevant cases a single number rating for the element performance can be obtained from this, in accordance with EN IS0 717-1, for instance R,(C; A, = 10 m2. where: A is the equivalent so
37、und absorption area in the receiving room, in square metres. This quantity is to be determined in accordance with EN 20140-10. 3.2.4 Normalized level difference for indirect airborne transmission Dn,s The difference in the space and time average sound pressure level produced in two rooms by a source
38、 in one of them. Transmission is only considered to occur through a specified path between the rooms (e.g. ventilation systems, corridors). Dn,s is normalized to the reference equivalent sound absorption area (A,) in the receiving room; Ao = 10 m*. The subscript s indicates the type of transmission
39、system considered. This quantity is to be determined with a measurement method which is comparable to EN 20140-10. NOTE: (see Annex F). Dedicated measurement methods for specific systems should be prepared by CENTTC 126 or CENTTC 211 3.2.5 Flanking normalized level difference Dn,f The difference in
40、the space and time average sound pressure level produced in two rooms by a source in one of them. Transmission is only considered to occur through a specified flanking path between the rooms (e.g. suspended ceiling, access floor, faade). D,f is normalized to the reference equivalent sound absorption
41、 area (A,) in the receiving room; A, = 1 O m2. This quantity is to be determined according to prEN IS0 10848-1. NOTE: T. For access floors a standard is in preparation: prEN IS0 140-1 1 (see Annex F). For suspended ceilings EN 20140-9 is available, where the subscript c is used instead of the more g
42、eneral O BSI 07-2000 STD-BSI BS EN L2354-L-ENGL 2000 E 3624669 0860864 OTT Page 9 EN 12354-1 12000 3.2.6 Vibration reduction index Kii This quantity is related to the vibrational power transmission over a junction between structural elements, normalized in order to make it an invariant quantity. It
43、is determined by normalizing the direction-averaged velocity level difference over the junction, to the junction length and the equivalent sound absorption length, if relevant, of both elements in accordance with the following equation: where: v,ij Dv,ji is the velocity level difference between elem
44、ent i and j, when element is the velocity level difference between element j and i, when element ij is the common length of the junction between element i and j, in metres; ai is the equivalent absorption length of element i, in metres; is the equivalent absorption length of element j, in metres. Th
45、e equivalent absorption length is given by: is excited, in decibels; is excited, in decibels; a =-6 2,2x2 s fief Co Ts where: Ts is the structural reverberation time of the element i or j, in seconds; S f is the area of element i or j, in square metres; is the centre band frequency, in Hertz; frei i
46、s the reference frequency; fief = 1 O00 Hz; CO is the speed of sound in air, in metres per second. NOTE 1 : frequency is assumed to be 1 O00 Hz, giving the same loss as the total losses of the element in a given situation. The quantity Kij is to be determined in accordance with prEN IS0 10848-1. NOT
47、E 2: the junction velocity level difference according to Annex E. The equivalent absorption length is the length of a fictional totally absorbing edge of an element if its critical For the time being values for this quantity can be taken from Annex E or be deduced from available data on 3.2.7 Other
48、element data For the calculations additional information on the element can be necessary, e.g.: - mass per unit area m, in kilograms per square metre; - type of element; - material; - type of junction. O BSI 07-2000 STDmBSI BS EN 1235q-L-ENGL 2000 = Lb24bb9 OBb08b5 T3b Page 10 EN 12354-1 12000 3.3 O
49、ther terms and quantities 3.3.1 Direct transmission Transmission due only to sound incident on a separating element and directly radiated from it (structure-borne) or transmitted through parts of it (airborne) such as slits, air moving devices or louvres. 3.3.2 Indirect transmission Transmission of sound from a source room to a receiving room, through transmission paths other than the direct transmission path. It can be divided into airborne transmission and structure-borne transmission. The latter is called flanking transmission. 3.3.3 Indir
