The purpose of this study is to identify the optimal seismic Intensity Measures (IMs) that best reflect the seismic response characteristics of a submerged structure used as a data center. Structural modeling and analysis were performed using ANSYS, and a Nonlinear Time History Analysis (NTHA) was conducted with 84 ground motion records from the PEER database. The maximum acceleration and displacement responses at the top of the structure were extracted as engineering demand parameters. Correlation analyses with 23 IMs revealed that Peak Ground Displacement (PGD) exhibits the highest correlation with the peak displacement response. At the same time, spectral velocity at the fundamental period (Sv(T1)) correlates most strongly with the peak acceleration response. These results indicate that the PGD and Sv(T1) are suitable IMs for evaluating the seismic performance of submerged structures.

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1. 서 론
2. 해저 구조물의 모델링
    2.1 해석 대상 구조물
    2.2 수치해석 모델
    2.3 공학적 요구 매개변수
3. 지진강도지표와 지진파
    3.1 지진강도지표
    3.2 지진파 선정
4. EDPs와 IMs 상관성 분석
    4.1 결정계수(Coefficient of determination, R2)
    4.2 상관계수(Correlation)
    4.3 효율성(Efficiency)
5. 결 론
/ 감사의 글 /
/ REFERENCES /

• 이다빈(건국대학교 인프라시스템공학과 석사과정) | Lee Dabeen (Department of Civil Engineering, Konkuk University)
• 이태형(건국대학교 사회환경공학부 교수) | Lee Tae-Hyung (Department of Civil and Environmental Engineering, Konkuk University) Corresponding author