Seismic performance evaluation of jacket-type offshore platforms using endurance time method considering soil-pile-superstructure interaction
Author(s):
Abstract:
In this paper, application of Endurance Time (ET) method in nonlinear seismic analysis of off shore pile supported systems has been studied. The ET method is a time-history analysis in which structures are subjected to intensifying arti cial acceleration functions. The ET method reduces complexity and computational demand of conventional nonlinear seismic analysis, and it provides response at di erent seismic levels in a single ET analysis. The aforementioned methodology has been applied to a typical model of single pile
and then to a functional jacket o shore platform in Persian Gulf region. Seismic response of aforesaid models by ET method has been compared with conventional time-history method. The results indicate that ET method is reliable in capturing seismic response of off shore platforms supported on piles with an acceptable accuracy.
and then to a functional jacket o shore platform in Persian Gulf region. Seismic response of aforesaid models by ET method has been compared with conventional time-history method. The results indicate that ET method is reliable in capturing seismic response of off shore platforms supported on piles with an acceptable accuracy.
Keywords:
Language:
English
Published:
Scientia Iranica, Volume:24 Issue: 4, 2017
Pages:
1843 to 1854
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