Damage Classification Information

NameMoschonas et al. (2014) - Spherical Pressure Vessels
Hazard TypeEarthquake
Plant Unit TypeStorage Tank
Description

Damage states for spherical pressure vessels according to Moschonas et al. (2014).

States
NoCodeNameDescription
1.DS0No Damage

No damage.

2.DS1Minor Damage

Minor yields that correspond to minor permanent deformations at critical sections of a small percentage of columns and/or braces.

3.DS2Moderate Damage

For class 1 sections according to EC3, moderate yields corresponding to moderate permanent deformations at critical sections of a moderate percentage of columns and/or braces without any global buckling failure of columns.

For class 2 and 3 sections according to EC3, minor-to-moderate yields that correspond to minor-to-moderate permanent deformations at critical sections of a moderate percentage of columns and/or braces without any local buckling at critical sections of columns.

4.DS3Major Damage

For class 1 sections according to EC3, major yields causing major permanent deformations at critical sections of a large percentage of columns and/or braces with global buckling failure of columns where maximum compression occurs.

For class 2 and 3 sections according to EC3, minor-to-major yields that cause minor-to-major permanent deformations at critical sections of a large percentage of columns and/or braces with local buckling of critical sections at the columns where maximum compression occurs.

5.DS4Collapse

Buckling failure with subsequent collapse of the pressure vessel.

ReferencesI. Moschonas; C. Karakostas; V. Lekidis; S. Papadopoulos, "Investigation of seismic vulnerability of industrial pressure vessels", 2014
AccessPublic
Created: Serkan GIRGIN, 2016/05/12 15:48:28 – Updated: Serkan GIRGIN, 2016/05/20 16:20:22

Risk States

NoDamage StateScenario ParametersValidity Conditions
1.DS0 (No Damage)LOC State: None--
2.DS1 (Minor Damage)LOC State: Minor--
3.DS2 (Moderate Damage)LOC State: Moderate--
4.DS3 (Major Damage)LOC State: Major--
5.DS4 (Collapse)LOC State: Catastrophic--

Fragility Curves

NoNameParameterUnitValidity Conditions
1.Moschonas et al. (2014), Non-braced Spherical Pressure VesselPGAgShape: Spherical; Storage Condition: Pressurelog μ̃4-
2.Moschonas et al. (2014), Braced Spherical Pressure VesselPGAgShape: Spherical; Column Support Type: Diagonal Braces; Storage Condition: Pressurelog μ̃4-

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