A new dynamic procedure for evaluation of steel storage tanks under multidirectional seismic excitations

作者：Alembagheri M^*

来源：KSCE Journal of Civil Engineering, 2014, 18(6): 1696-1703.

DOI：10.1007/s12205-014-0100-7

• cylindrical steel tanks
• endurance time method
• time history analysis
• nonlinear approach
• multidirectional excitation

Endurance Time (ET) method is a new dynamic procedure that has been recently developed for seismic safety evaluation of structures. This method is based on the comparison of seismic response of new-designed or existing structures under intensifying ET records with the pre-assigned damage index. Also this method can efficiently reproduce the seismic responses of the structures excited by scaled earthquakes that are required in time history analysis by the codes. In this paper, first general idea of this new method is described and then is applied to evaluate the seismic safety of a cylindrical steel storage tank under multidirectional excitations. It is shown that the ET method can predict the seismic response of steel tanks; and hence it can be used efficiently in preliminary analysis and design of new tanks or safety evaluation of existing tanks.

• 出版日期2014-9