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http://dx.doi.org/10.7734/COSEIK.2019.32.1.7

Seismic Access of Offshore Subsea Manifold using RSA and THA Seismic Analysis Results for Simplified Model  

Lee, Eun-Ho (Industrial Technology(Industrial Materials and Smart Manufacturing Engineering), Korea University of Science and Technology(UST))
Kwak, Si-Young (Industrial Technology(Industrial Materials and Smart Manufacturing Engineering), Korea University of Science and Technology(UST))
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.32, no.1, 2019 , pp. 7-16 More about this Journal
Abstract
In this paper, for a seismic analysis of an offshore subsea manifold, Response Spectrum Analysis(RSA) and Time History Analysis(THA) were conducted under a various analysis conditions. Response spectrum and seismic design procedure have followed ISO19901-2 code. In case of THA, The response spectrum were converted into artificial earthquake history and both of Explicit and Implicit solvers were used to examine the characteristics of seismic analysis. For the verification, Various seismic analysis methods were applied on a single degree of freedom beam model and a simplified model of the actual manifold. The difference between the results of RSA and THA on the simplified manyfold model evaluated for the analysis of the actual manifold. Because THA is impossible in case of real complex structure such as a manifold, Safety of the actual manifold structure was accessed by using the RSA and the difference between the results of RSA and THA from the simplified model.
Keywords
offshore subsea structure manifold; seismic analysis; RSA(response spectrum analysis); time history analysis; explicit analysis; implicit analysis; artificial earthquake history;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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