1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS S KS F 2866 KS F 2866 : 2003 (2013 ) 2003 6 10 http:/www.kats.go.kr : ( ) ( ) ( ) ANC ( ) ( ) ( ) : (http:/www.standard.go.kr) ： : 2003 6 10 ： 2013 10 08 2013 0524 : ： ( 02-503-7290) . (http:/www.kats.go.kr) 10 5 , . ICS 27.220 KS F 2866：2003 (2013 ) Labora
2、tory measurement of room-to-room airborne sound insulation of a suspended ceiling with a plenum above it 1985 ISO 140 9 Acoustics Measurements of sound insulation in buildings and of building elements Part 9： Laboratory measurement of room-to-room airborne sound insulation of a suspended ceiling wit
3、h a plenum above it . ( ) KS F 2861 , , ISO 140 9 . 1. 2 (plenum) . 1. , 1 . . 2. , 2 . . 3. , , (plenum barrier) . 2. . . KS A 5113 1/3 KS F 2805 KS F 2861 , KS F 2862 3. . 3.1 (average sound pressure level in a room) L 10 F 2866： 2003 2 . , . (dB) . 2022221log10nppppL n+=KK (1) p1, p2 , , pn： n p0
4、 = 20Pa： 3.2 (level difference) D , . (dB) . D = L1 L2 (2) L1： (dB) L2： (dB) 3.3 (suspended ceiling normalized level difference) Dn,c , (dB) . 0, log10 AADDcn -= (3) D： A： ( ) A0： ( A0 = 10m2) 3.4 (plenum space) . 4. 6. . 5. 5.1 2 . 5.1.1 5.1.6 ( ). 5.1.1 6 . , , . , . 1/3 1 . . 5.1.2 4.50.5m, 2.80.
5、2m , . V 50m3 , 2 10% . 1. 40 50m3 F 2866： 2003 3 . 2. 5.1.2 . 5.1.3 2 . (capping) 100mm . (tapering) 30 . 10dB . ( ) . 5.1.4 (plenum) ( ) 650mm 760mm . 5.1.5 (plenum lining) (sidewall) 1 (endwall) . , KS F 2805 . 1 , 1 0.10 . , 150mm . 5.1.6 . 5.2 . . . . , . 6. 6.1 , . 1/3 . 10dB . (Hz) 125 250 50
6、0 1 000 2 000 4 000 (s) 0.65 0.80 0.80 0.80 0.80 0.80 F 2866： 2003 4 1 , (enclosure) , 0.7m . . , . 6.2 1 P2 . 6.3 1/3 . KS A 5113 . 1/3 (Hz) . 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1 000, 1 250, 1 600, 2 000, 2 500, 3 150 6.4 (3) KS F 2805 . TVA 16.0= (4) A： (m2) V： (m3) T： (s) 6.5 . .
7、, , , . 6.6 , Dn,c . 7. . KS F 2861 . . 8. , ( ) . 1/3 5mm , (Dn,c ) 10dB 20mm . . 9. . F 2866： 2003 5a) b) c) , , , , , , , , d) , . . e) f) g) ( ) h) i) j) k) l) m) ( ) Dn,c( f ) KS F 2862 . , Dn,c,w . F 2866： 2003 6 ( ) KS F 2861 . . , ( ) . . . 2 . , 6 . 0.7m , 0.5m . 5 . 1/3 . 6 . 1/10 1/10 . 2
8、0dB . 20 % , . 100mm650mm300mm2800mm 150mm ( ) 4500mmV=50m3 V=55m 3( ) 1 ( . 5. .) (a) (b) F 2866： 2003 7KS F 2866： 2003 . 1. , . . . . KS ASTM ISO . . KS . , ISO . KS , , KS ISO , 1985 ISO 140 9 AcousticsMeasurement of sound insulation in buildings and of building elements Part1： Laboratory measurement of room-to-room airborne sound insulation of a suspended ceiling with a plenum above it . 2. 2.1 1 . , , , , , . KS F 2861 , , . 2.2 , 1 . 2 (acoustical barrier) F 2866： 2003 8 , . (plenum barrier) . 2.3 . , , (suspended ceiling normalized level difference) (plenum
