1、 12354-32012 3 EN 12354-3:2000Building acoustics Estimation of acoustic performance of buildings fromthe performance of elements Part 3: Airborne sound insulation againstoutdoor sound(IDT) 1 - ( ) - , 42 358 3 29 2012 . 1385-4 12354-3:2000 . . 3. (EN 12354-3:2000 Building acoustics Estimation of aco
2、ustic perfor-mance of buildings from the performance of elements Part 3: Airborne sound insulation against outdoorsound). - , 5 1.02012 ( 8). ( 1 ) , -.() - . , - (gost.ru) , 2014 , - - II 12354-320121 .12 13 24 44.1 44.2 64.3 64.4 .64.5 .75 7 () 8 B () 11 () .13 D () .16 () 19 F () 20 () .2223III 1
3、2354-32012 3 Building acoustics. Estimation of acoustic performance of buildings from the performance of elements. Part 3. Airbornesound insulation against outdoor sound 201312011 . -. - N ISO 140-5. , . , , D. , , . . , , .2 . - , . 12354-1:2000 . - . 1. (EN 12354-1:2000, Building acoustics Estimat
4、ion of acoustic performance of buildings from the performanceof elements Part 1: Airborne sound insulation between rooms) 20140-10* . . 10. (EN 20140-10,Acoustics. Measurement of sound insulation in buildings and of building elements. Laboratory measurement ofairborne sound insulation of small build
5、ing elements)* 20140-10, 140 ( 1, 3) 10140 ( 15), 10140 ( 15). - , .1 12354-32012 140-1* . . 1. - (EN ISO 140-1:1998. Acoustics Measurement of sound insulation in buildings and ofbuilding element Part 1: Requirements for laboratory test facilities with suppressed flanking transmission) 140-3* . . 3.
6、 (EN ISO 140-3:1995,Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Laboratorymeasurement of airborne sound insulation of building elements) 140-5 . . 5. (EN ISO 140-5:1998,Acoustics Measurement of sound insulation in buildings and of building elements Part 5:
7、 Fieldmeasurements of airborne sound insulation of facade elements and facades) 717-1 . . 1. (EN ISO 717-1:1997, Acoustics Rating of sound insulation inbuildings and of building elements Part 1: Airborne sound insulation) 11654 . , . - (EN ISO 11654:1997, Acoustics Sound absorbers for use in buildin
8、gs Rating of soundabsorption)3 .3.1 , 140-5 . , ( ), - 717-1, - c162Rw, D1s,2m,nT,w ( c162Rw+Ctr).3.1.1 45(pparentsoundreductionindex) c162c176R45,:- , , 45, c162c176R45=L1,sL2+10lgSA 1,5,(1) L1,s , ;L2 *, ;S , 2;A , 2.3.1.2 (pparent sound reduction index) c162Rtr s,: , , - c162Rtr s,=Leq,1,sLeq,2+
9、10 lgSA3,(2)Leq,1,s , ;Leq,2 , .3.1.3 (standardized level difference) D2m,nT,: 2 - -, * 20140-10, 140 ( 1, 3) 10140 ( 15), 10140 ( 15). - , .* , , . -, () , .2 12354-32012D2m,nT=L1,2mL2+10lgTT0,(3) L1,2m 2 , ;T , ;L2 , ;T0 , ( T0=0,5). . - tr ls , Dtr,2m,nT Dls,2m,nT.3.1.4 (normalized level differen
10、ce) D2m,n,: 2 , D2m,n=L1,2mL210lgAA0,(4) A0 , 2( A0=102). . tr ls , Dtr,2m,nT Dls,2m,nT.3.1.5 c162c176R45 c162Rtr s, . 45 , - c162Rtr s, 0 2 . c162Rtr s, , . . D2m,nT D2m,n D2m,n=D2m,nT 10 lg 0,16VTA00= D2m,nT 10 lg 0,32V,(5) V , 3. , . D2m,nT. , , - , . .Dtr,2m,nTc187 Dls,2m,nT. (6) . , .3.2 . , -
11、 , Rw(C; Ctr)Dn,e,w(C; Ctr), 717-1.3.2.1 (sound reduction index) R,: - W1, , W2, ; R=10 lgWW12.(7) 140-3*.3.2.2 (element normalized level difference) Dn,e,: , -, , , - (, , , ).* 10140-2.3 12354-32012Dn,e A Dn,e=L1L210lgAA0,(8) 0 , 2. 0=102. 20140-10*.3.2.3 :- ;- ;- .3.3 3.3.1 (sound reduction index of facade for diffuseincident sound field) Rc162,: , - . , - . - Rc162, .3.3.2 (facade shape level difference) c68Lfs,:, - L1,in, , L1,s,- 6 c68Lfs= L1,in L1,s+6, (9) L1,in , ;L1,s
