| Name | HAZUS (2010) - Near Full, Unanchored |
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| Abbreviation | HAZUS-NU |
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| Functional Form | Log-normal (median) |
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| Plant Unit Type | Storage Tank |
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| Damage Classification | HAZUS (2010) - Storage Tank |
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| Hazard Parameter | Peak Ground Acceleration (PGA) |
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| Unit | g |
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| Type | Cumulative |
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| Data | | No | Damage State | Median | Standard Deviation |
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| 1. | DS2 | 0.15 | 0.7 | | 2. | DS3 | 0.35 | 0.75 | | 3. | DS4 | 0.68 | 0.75 | | 4. | DS5 | 0.95 | 0.7 |
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| Cumulative Curve | |
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| Discrete Curve | |
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| Validity Conditions | Base Type: On-ground; Base Support Type: Unanchored; Construction Material: Steel; Storage Condition: Atmospheric; Fill Percent: > 80 %v |
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| Precedence | Auto |
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| References | - Salzano, E.; Iervolino, I.; Fabbrocino, G., "Seismic risk of atmospheric storage tanks in the framework of quantitative risk analysis", 2003
- FEMA, "HAZUS-MH MR5 Technical Manual - Earthquake Model", 2010
- A. Di Carluccio, I. Iervolino, G. Manfredi, G. Fabbrocino, E. Salzano, "Quantitative probabilistic seismic risk analysis of storage facilities", 2006
- Eidinger J. M.; Avila, E. A.; Ballantyne, D.; Cheng, L.; der Kiureghian, A.; Maison, B. F.; O'Rourke, T. D.; Power, M., "Seismic fragility formulation for water systems", 2001
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| Notes | See FEMA (2010), Table 8.9 (page 8-16). It is also used for tanks in refineries (Table C.8.2, page 8-99).
Eidinger et al. (2001) indicates that the curves are applicable only for (water) tanks that are at least 80% full at the time of the earthquake (Part 2, page 78).
See Di Carluccio et al. (2006) Table 2 (page 219) for probit constants, which supercedes Salzano et al. (2003) Table 5 (page 408).
In Salzano et al. (2003), curve parameters for ≥DS4 are wrongly indicated as 1.06 and 0.8. |
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| Access | Public |
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