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Information Journal Paper

Title

A SIMPLIFIED METHOD IN COMPARISON WITH COMPREHENSIVE INTERACTION INCREMENTAL DYNAMIC ANALYSIS TO ASSESS SEISMIC PERFORMANCE OF JACKET-TYPE OFFSHORE PLATFORMS

Pages

  353-364

Keywords

COMPREHENSIVE INTERACTION INCREMENTAL DYNAMIC ANALYSIS (CI-IDA) 
STATIC PUSHOVER ANALYSIS (SPO) 

Abstract

 The primary goal of seismic reassessment procedures in oil platform codes is to determine the reliability of a platform under extreme earthquake loading. Therefore, in this paper, a simplified method is proposed to assess seismic performance of existing JACKET-TYPE OFFSHORE PLATFORMs (JTOP) in regions ranging from near-elastic to global collapse. The simplified method curve exploits well agreement between static pushover (SPO) curve and the entire summarized interaction incremental dynamic analysis (CI-IDA) curve of the platform. Although the CI-IDA method offers better understanding and better modelling of the phenomenon, it is a time-consuming and challenging task. To overcome the challenges, the simplified procedure, a fast and accurate approach, is introduced based on SPO analysis. Then, an existing JTOP in the Persian Gulf is presented to illustrate the procedure, and finally a comparison is made between the simplified method and CI-IDA results. The simplified method is very informative and practical for current engineering purposes. It is able to predict seismic performance elasticity to global dynamic instability with reasonable accuracy and little computational effort.

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    Cite

    APA: Copy

    ZOLFAGHARI, M.R., AJAMY, A., ASGARIAN, B., & AJAMY, A.. (2015). A SIMPLIFIED METHOD IN COMPARISON WITH COMPREHENSIVE INTERACTION INCREMENTAL DYNAMIC ANALYSIS TO ASSESS SEISMIC PERFORMANCE OF JACKET-TYPE OFFSHORE PLATFORMS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, 7(4), 353-364. SID. https://sid.ir/paper/319814/en

    Vancouver: Copy

    ZOLFAGHARI M.R., AJAMY A., ASGARIAN B., AJAMY A.. A SIMPLIFIED METHOD IN COMPARISON WITH COMPREHENSIVE INTERACTION INCREMENTAL DYNAMIC ANALYSIS TO ASSESS SEISMIC PERFORMANCE OF JACKET-TYPE OFFSHORE PLATFORMS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING[Internet]. 2015;7(4):353-364. Available from: https://sid.ir/paper/319814/en

    IEEE: Copy

    M.R. ZOLFAGHARI, A. AJAMY, B. ASGARIAN, and A. AJAMY, “A SIMPLIFIED METHOD IN COMPARISON WITH COMPREHENSIVE INTERACTION INCREMENTAL DYNAMIC ANALYSIS TO ASSESS SEISMIC PERFORMANCE OF JACKET-TYPE OFFSHORE PLATFORMS,” INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, vol. 7, no. 4, pp. 353–364, 2015, [Online]. Available: https://sid.ir/paper/319814/en

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