Civil Engineering Association

Seismic response of a steel liquid storage tanks

In this paper, the effectiveness of the base isolation on steel storage tanks has been investigated through
numerical models and then checked by shaking table tests on a reduced scale (1:14) model of a real
steel tank, typically used in petrochemical plants. In the experimental campaign the floating roof has also
been taken into account. The tests have been performed on the physical model both in fixed and isolated
base configurations; in particular two alternative base isolation systems have been used: high-damping
rubber bearings devices and sliding isolators with elasto-plastic dampers. Finally, a comparison between
experimental and numerical results has also been performed.

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