Dynamic analysis and seismic performance evaluation of above-ground liquid-containing tanks
Halil Sezen, Ramazan Livaoglu, Adem Dogangun
Cilt: 30, 794-803, 2008
A large number of industrial facilities were damaged during the 1999 Mw7.4 Kocaeli, Turkey earthquake. One of those industrial facilities, Habas plant located within 10 km of the fault trace, provides liqueﬁed gases to commercial plants and medical facilities. Two of the three tanks at the Habas facility collapsed during the earthquake. The main objectives of this paper were to evaluate the seismic performance of tanks and investigate the parameters inﬂuencing the dynamic behaviour. Simpliﬁed and ﬁnite element dynamic analyses of the tanks are carried out including the effect of liqueﬁed gas–structure interaction using a ground motion recorded at a nearby site. The vulnerabilities of the structural system, the observed performance, and damage pattern are discussed by comparing the dynamic analysis results with the strength and deformation capacity of the support columns. The dynamic analysis results from a simpliﬁed three-mass model and a ﬁnite element model conﬁrmed that the axial and lateral strength of the columns supporting the two nearly full tanks were not sufﬁcient to resist the demand imposed during the earthquake. Consistent with the observed structural performance, an elastic response is predicted for the columns supporting the undamaged 25% full identical tank.
Anahtar Kelimeler: Above-ground tanks; liquefied gas-structure interaction; sloshing effect; column failure; earthquake damage
|1.||1999/08/17||HABAŞ Sınai ve Tıbbi Gazlar Endüstrisi A.Ş. Köseköy Hava Ayrıştırma Tesisi||Kocaeli||Kartepe|