2 4
2 4 1
2 4 2
2 4 3
2 4 4
2 4 5
2 4 6
2 4 7
2 4 t ct c t c f = c f λ λ c 8
2 4 W PWL = 10log 10 W 0 PWL W 0 W 2 p p SPL = 10log10 = 20log 2 10 p p SPL p p 0 0 0 9
2 4 2 2 I1 p I 1 2 p2 = 10log10 10 L 10 2 2 = 10log10 = 10log10 2 I0 p I 0 0 p0 L 1 = log L 1+ 2 = 10log 10 I I 1 0 I + I 2 0 = 10log 10 10 L1 10 + 10 L12 10 10
2 4 A SPL = PWL +10log10 A 4 A 11
2 4 12
2 4 13
2 4 k L k m 1 Lj 10 Lk = 10log10 10 m j= 1 L j j m L n 1 L = n j= 1 L j n 14
2 4 L i,r,h - 50 L i,r,h - 55 L i,r,h - 60 L i,r,h - 65 15
2 4 16
2 4 17
2 4 18
2 4 Z b 8 Bm Zb B m B B (EI) E I 19
2 4 I I 4 I 4 I 4 20
2 4 21
2 4 22
2 4 +3 +1 +2 +7 +3 +4 +5 +7-2 -1-2 -7-1 -3-4 -6 +3 +1 +7-2 -1-7 +3 +4 +7-1 -3-6 +5 +3 +14 0 +1 0 +8 +5 +15 +3 +3 +1 +5 +7 +13 +1 0 +1 +5 +9 +15 +1 +2 +2 23
2 4 0 0 +2 +2-5 -2-12 +1 +2 +2 +2-3 -5-11 +3 +4 +5 +4-2 +2-10 +6 +5 +6 +5 +1 +3-9 +5 +6 +5 +4 +1-1 -9 +7 +6 +6 +5 +3-1 -8 24
2 4 +10 +6 +12 +12 +10 +12 +5 +4 +8 +3 +1 +2 +13 +9 +14 +8 +7 0 +14 +12 +13 +10 +5 0 +11 +6 +14 +12 +12 +16 +6 +4 0 +8 +5 +3 25
2 4 +6 +10 +24 +1 +8 +8 +10 +7 +12 +25 +2 +10 +11 +11 +5 +11 +1 +4 +4 +8 +14 +4 +7 +6 26
2 4 27
2 4 Frame Motion Concrete test frame Test specimen Test specimen Inflatable neoprene seals mesh floor for in-situ modifications Rails to support movable test frame EW section NS section H=2,700 mm Room volume: 35 to 45m 3 H=2,400 mm Specimen surfaces Facility surfaces 28
2 4 13 79 NRC-14 13+13 78 15+21 16 16+16 16 16+16 16 16+16 16 16+16 NRC-15 13 81 NRC-16 13+13 78 NRC-16dCL 79 NRC-14dSL 78 NRC-15dSL 81 NRC-16dSL 74 NRC-14dT2 73 NRC-15dT2 76 NRC-16dT2 72 NRC-14dT1 70 NRC-15AT 74 NRC-16dT1 77 NRC-14dSJ 76 NRC-15dSJ 79 NRC-16dSJ 15+21 73 NRC-07A 73 NRC-05 67 NRC-05T 13 78 NRC-21 13+13 75 NRC-18 78 NRC-21dSL 75 NRC-18dSL 73 NRC-21dT2 70 NRC-18dT2 72 NRC-21dT1 69 NRC-18dT1 75 NRC-24 76 NRC-23 15+21 69 TH7-C2 13 80 NRC-22 13+13 77 NRC-22dCL 79 NRC-22dSL 74 NRC-22dT2 73 NRC-22dT1 15+21 70 NRC-07dCJ 67 NRC-06 71 NRC-24dT2 71 NRC-23dT2 66 TH7-C2T 64 NRC-06dT2 13 13+13 15+21 75 NRC-01A 73 NRC-01 70 NRC- 01AdT2 68 NRC-01T 73 NRC-02A 73 NRC-02 68 NRC- 02AdT2 68 NRC-02T 29
2 4 30
- 2 4 L est L ia,fmax L ia,fmax = 31, L est + 26, R=0.98 31
2 4 32
2 4 33
2 4 34
2 4 35
2 4 36
2 4 37