ABSTRACT
Large oil storage tanks—important infrastructure in the oil and gas exploitation and storage process—are bound to cause serious casualties and enormous environmental pollution if damaged under an earthquake. To clarify the seismic performance of large storage tanks under different seismic conditions, the mechanical behaviors of a large oil storage tank under different liquid levels and different earthquake effects were simulated by combining the Adina numerical simulation and the fluid-solid coupling theory. The results revealed that the seismic performance of the storage tank was significantly influenced by the earthquake magnitude and liquid storage height, where the latter was an important index influencing the seismic stability of the tank body. With the increase in the earthquake magnitude and the liquid level, the vertical stress of the storage tank grew while its seismic performance declined.
