RAPID-N

Damage Classification

Name

O'Rourke and So (2000) - Storage Tank

Hazard Type

Earthquake

Plant Unit Type

Storage Tank

Description

The damage states used to characterize component damage are intended to mimic the damage state descriptions in the HAZUS Methodology.

States

No	Code	Description
1.	DS1	No damage to tank or I/O pipes.
2.	DS2	Damage to roof, minor loss of contents, minor damage to piping, but no elephant-foot buckling.
3.	DS3	Elephant-foot buckling with minor loss of content.
4.	DS4	Elephant-foot buckling with major loss of content, severe damage.
5.	DS5	Total failure, tank collapse.

References

Access

Public

No	Damage State	Scenario Parameters	Validity Conditions
1.	DS1	LOC State: None	-	-
2.	DS2	LOC State: Minor	-	-
3.	DS3	LOC State: Moderate	-	-
4.	DS4	LOC State: Major	-	-
5.	DS5	LOC State: Catastrophic	-	-

No	Name	Parameter	Unit	Validity Conditions
1.	O'Rourke and So (2000)	PGA	g	Base Type: On-ground; Construction Material: Steel; Storage Condition: Atmospheric	log μ̃	4	-
2.	O'Rourke and So (2000), Fill ≥ 50%	PGA	g	Base Type: On-ground; Construction Material: Steel; Storage Condition: Atmospheric; Fill Percent: > 50 %v	log μ̃	4	1
3.	O'Rourke and So (2000), H/D < 0.7	PGA	g	φ_hd: < 0.7 m/m; Base Type: On-ground; Construction Material: Steel; Storage Condition: Atmospheric	log μ̃	4	-
4.	O'Rourke and So (2000), H/D ≥ 0.7	PGA	g	φ_hd: > 0.7 m/m; Base Type: On-ground; Construction Material: Steel; Storage Condition: Atmospheric	log μ̃	4	-
5.	O'Rourke and So (2000), Fill < 50%	PGA	g	Base Type: On-ground; Construction Material: Steel; Storage Condition: Atmospheric; Fill Percent: < 50 %v	log μ̃	1	1