Damage Classification Information

NameSeligson et al. (1996) - Reactor
Hazard TypeEarthquake
Plant Unit TypeReactor
Description

Damage states for reactor vessels.

States
NoCodeNameDescription
1.DS1None

None or insignificant structural damage (damage ratio: 0 - 0.05%).

2.DS2Light

Minor buckling of some cross braces in support structure (damage ratio: 0.05 - 1.25%).

3.DS3Moderate

Failure of some connected piping; repairable damage to the reactor support system; moderate likelihood of realease of reactor contents (1.25 - 20%).

4.DS4Severe

Failure of most piping connections; reactor support system almost completely failed; almost certain release of reactor contents (20 - 65%).

5.DS5Total

Failure of all piping connections; reactor support system completely failed; reactor itself severely damaged (possible buckling and shearing); contents of reactor released (65 - 100%).

ReferencesSeligson, H. A.; Eguchi, R. T.; Tierney, K. J.; Richmond, K., "Chemical hazards, mitigation and preparedness in areas of high seismic risk: a methodology for estimating the risk of post-earthquake hazardous materials release", 1996
AccessPublic
Created: Vincenzo ARCIDIACONO, 2014/01/31 14:40:35 – Updated: Serkan GIRGIN, 2016/03/01 14:22:40

Fragility Curves

NoNameParameterUnitValidity Conditions
1.Seligson et al. (1996)MMI--5-

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