Research Article
Design Earthquake Response Spectrum Affected by Shallow Soil Deposit
Table 4
Midperiod amplification factor (DRS-1).
| | 500-year return period (0.11 g) | 1000-year return period (0.154 g) | 2400-year return period (0.22 g) | IBC 2015 | Analysis result | IBC 2015 | Analysis result | IBC 2015 | Analysis result | Mean | σ | Mean | σ | Mean | σ |
| SB | 1.00 | 1.00 | 0.001 | 1.00 | 1.01 | 0.001 | 1.00 | 1.00 | 0.021 | SC | 1.69 | 1.15 | 0.123 | 1.65 | 1.17 | 0.130 | 1.58 | 1.21 | 0.148 | SD | 2.36 | 1.49 | 0.141 | 2.18 | 1.51 | 0.141 | 1.96 | 1.56 | 0.126 | SE | 3.47 | 2.01 | 0.265 | 3.34 | 1.97 | 0.300 | 3.12 | 1.85 | 0.384 |
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