1、 10848-32012 3 ISO 10848-3:2006Acoustics Laboratory measurement of the flanking transmission of airborne andimpact sound between adjoining rooms Part 3:Application to light elements when the junction has a substantial influence(IDT) 27 2002 . 184- , 1.02004 . 1 - ( ) - , 42 358 3 - 29 2012 . 1384-4
2、10848-3:2006 . -. 3. (ISO 10848-3:2006Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound betweenadjoining rooms Part 3: Application to light elements when the junction has a substantial influence). - , 5 , - . () . - , , 2013 , - - II 10848-320121 .12 .13 .24
3、.35 36 37 .38 .49 .4 () Dn, f, I Ln, f, I 6 () cc-7 8III 10848-32012 3 Acoustics. Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms.Part 3. Application to light elements when the junction has a substantial influence 201312011 10848 ( 13) - . - ,
4、 , , , 2 3. (-) (-). 10848-1 ( 3.10). 10848-1 ( 4.4). (Dn, f/ Ln, f), , - Kij ( ). Dn, f Ln, f , Kij . Dn, f Ln, f (, , , ), . , Kij.2 . - , . 140-2 . . 2. -, (ISO 140-2, Acoustics Measurement ofsound insulation in buildings and of building elements Part 2: Determination, verification and applicatio
5、n ofprecision data) 140-3:1995* . . 3. (ISO 140-3:1995,Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Laboratorymeasurements of airborne sound insulation of building elements) 140-6:1998* . . 6. (ISO 140-6:1998,Acoustics Measurement of sound insulation in bui
6、ldings and of building elements Part 6: Laboratorymeasurements of impact sound insulation of floors)* 140 ( 3, 6) 10140. , - .1 10848-32012 717-1 . . 1. (ISO 717-1, Acoustics Rating of sound insulation in buildings and ofbuilding elements Part 1: Airborne sound insulation) 717-2 . . 2. (ISO 717-2, A
7、coustics Rating of sound insulation in buildings and of buildingelements Part 2: Impact sound insulation) 10848-1:2006 . - . 1. (ISO 10848-1:2006,Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound betweenadjoining rooms Part 1: Frame document)3 :3.1 (normalize
8、d flankinglevel difference) Dn, f,: ,.Dn, f Dn,f= L1 L2 10lgAA0,(1) L1 , ;L2 , ; , 2;0 , 2; 0=102. 10848-1:2006, 3.23.2 (normalizedflanking impact sound pressure level) Ln, f,: , , , - . Ln, f - Ln, f= L2+ 10lgAA0,(2) L2 , ; , 2;0 , 2; 0=102. 10848-1:2006, 3.33.3 (vibration reduction index) Kij, : ,
9、 Kij= Dvij,+ 10lglaaijij,(3)Dvij, i j, ;lij i j,;ai, aj i j, . 1 , 10848-1 ( 3.8). , , aj Sj,.aj= Sj/l0, l0=1.2 10848-32012 2 .4 10848-1 ( 5).5 5.1 -, 10848-1 ( 6). Kij , - . - , 10848-1 ( 8.2). , . , , Kij - .5.2 , - , . , . - . ( ), 10848-1 ( 8.1.1). - - , .5.3 . 10848-1 ( 9).6 Dn, f Ln, f 10848-1
10、 ( 7.1) - . Kij 10848-1 ( 7.2) - 10848-1 ( 7.4) . - 10848-1 ( 4.3.4). 10848-1 ( 7.5).7 . - 140-2 - . .3 10848-320128 Dn, f, - Ln, f i, f - . ( ) ( ) :- 5 1/3 ;- 20 10 . 140-3:1995 ( G)* 140-6:1998 ( )*. :Dn, f, oct=10lg1310131013c45c45c229c230c232c231c231c231c246c248c247c247c247Dnnf octn, ./,(4)Ln, f, oct= 10lg 10131013Lnnf octn, ./c45c229c230c232c231c231c231c246c248c247c247c247,(5)Kij, oct= 10lg1310131013c45c45c229c230c232c231c231c231c246c248c247c247c247Dnij oct n,./.(6) Dn, f Ln, f , , - .Ln,f. Dn, f(f)/Ln, f(f) 717-1 717-2 . - Dnf,w(C; tr) Dn, f, w(CI). Kij(f) 10848-1( ).9 :) ;b) , ;c)
