Damage Classification Information

NameAmerican Lifelines Alliance (2001) - Storage Tank
Hazard TypeEarthquake
Plant Unit TypeStorage Tank
Description

Damage states according to American Lifelines Alliance's "Seismic Fragility Formulations for Water Systems" guideline (2001).

States
NoCodeNameDescription
1.DS1No Damage

No damage.

2.DS2Slight

Roof damage and pipe damage, generally 1%-20% loss (of replacement cost).

3.DS3Moderate

Elephant foot buckling with no leaks, generally 40% loss (of replacement cost).

4.DS4Extensive

Elephant foot buckling with leak, generally 40%-100% loss (of replacement cost).

5.DS5Complete

Complete collapse, generally 100% loss (of replacement cost).

ReferencesEidinger 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
AccessPublic
Created: Serkan GIRGIN, 2011/08/03 08:26:15 – Updated: Serkan GIRGIN, 2016/03/01 14:20:49

Risk States

NoDamage StateScenario ParametersValidity Conditions
1.DS1 (No Damage)LOC State: None--
2.DS2 (Slight)LOC State: Minor--
3.DS3 (Moderate)LOC State: Moderate--
4.DS4 (Extensive)LOC State: Major--
5.DS5 (Complete)LOC State: Catastrophic--

Fragility Curves

NoNameParameterUnitValidity Conditions
1.Berahman and Behnamfar (2007), Unanchored on-ground steel tankPGAgBase Type: On-ground; Base Support Type: Unanchored; Construction Material: Steel2-

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