Comparison of Standard No. 2800 with ASCE7 to Scale Earthquake Records for Seismic Assessment of Existing Steel Oil Storage Tanks

The significance of earthquake effects on storage tanks compels researchers to investigate tanks seismic responses. In spite of the recent design codes developments, there is no accepted procedure to scale ground motions to perform time-history analysis for these very stiff structures. Nevertheless, standards for conventional structures have long been minimized in a predefined range of periods the difference between the response spectra of chosen records and the target spectrum. Since design specifications have important differences in their scaling procedures, it gives rise to affect on seismic response of structures. In this paper, the various seismic responses of several existing cylindrical tanks in an oil storage complex in Kashan, Iran are evaluated. The earthquake records have been separately scaled according to the procedure described in Iranian Standard No. 2800 and ASCE/SEI 7-10. The results indicate the different consequences of the scaling procedures for the tanks responses.

کلیدواژه ها:

Storage tank ، Design code ، Scaling procedure ، Target spectrum ، Seismic response.