Numerical investigation of stochastic response of an elevated water tank to random underground blast loading |
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| Authors: | Kemal Hacıefendioğlu Kurtuluş Soyluk Fahri Birinci |
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| Institution: | (1) Department of Civil Engineering, Ondokuz Mayıs University, 55139 Kurupelit, Samsun, Turkey;(2) Department of Civil Engineering, Gazi University, Maltepe, 06570 Ankara, Turkey |
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| Abstract: | This paper presents a stochastic finite element seismic response study of a water tank subjected to random underground blast-induced
ground motion. Such tanks contain water and hazardous chemical substances, which implies significant risk to human life, serious
environmental pollution, and considerable economic loss. The random blast-induced ground motion is represented by power spectral
density function and applied to each support point of the three dimensional finite element model of the elevated water tank–fluid
interaction system. A parametric study is conducted to estimate the effects of the blast-induced ground motion on the stochastic
response of the elevated water tank system. Therefore, the analyses are carried out for different values of the charge weight
and the distance from the charge centre. Additionally, in order to investigate the effect of the fluid on the stochastic response
of the elevated water tank, three cases with different water levels are considered in the analyses. Finally, it is observed
that underground blast loading considerably changes the stochastic behavior of the elevated water tank system. |
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