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http://dx.doi.org/10.7734/COSEIK.2022.35.1.9

Performance Analysis of Smart Automatic Jack-Up System Using the Pairwise Comparison Matrix Analysis Method  

Kim, Sung-Jo (Department of Civil and Environmental Engineering, Yonsei University)
Ji, Yongsoo (Pentad Inc.)
Kim, Bongsik (Pentad Inc.)
Han, Tong-Seok (Department of Civil and Environmental Engineering, Yonsei University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.35, no.1, 2022 , pp. 9-14 More about this Journal
Abstract
In this study, a smart jack-up system was developed to prevent safety accidents by performing risk analysis when a structure is lifted for maintenance. A quantitative risk analysis program that can analyze the risk using the pairwise comparison matrix analysis method was developed. The risk was analyzed in real-time for the lifting structure by connecting the program with an automatic jack-up system. Displacements were measured by the IR sensor among the components of the automatic jack-up system, and the displacements were provided to the quantitative risk analysis program. To confirm the performance of the smart automatic jack-up system, experiments were conducted on bridge and risk analysis was performed when a superstructure was lifted. A linear variable differential transformer (LVDT) was also installed on the bridge to verify the performance of the smart automatic jack-up system. The maximum displacements were measured using the devices, and the declinations were compared. The performance of the simultaneous operation of the jack-up device was verified by the analysis of variance (ANOVA).
Keywords
smart automatic jack-up system; IR-sensor; pairwise comparison matrix; quantitative risk assessment; ANOVA;
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Times Cited By KSCI : 3  (Citation Analysis)
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