This study conducts a comprehensive evaluation of the seismic response of a lead-acid battery rack system installed within a telecommunication data center, utilizing advanced three-dimensional analytical models. Nonlinear modeling was employed to accurately capture the principal load-transfer mechanisms, including battery sliding, spacer-to-battery contact, and baseplate-to-slab interactions. The seismic analyses encompassed response-spectrum as well as both linear and nonlinear time-history approaches, with seismic input parameters aligned with the Korean technical standards for broadcasting and telecommunications facilities. The investigation addressed the influences of damping methodology, support restraint conditions, analytical method, installation location, and spacer representation. Results indicated that linear analyses tended to overestimate demands on key structural members and connections relative to nonlinear analyses. Notably, in the nonlinear analyses, the phenomena of battery sliding and spacer contact were found to modify the load-transfer mechanism, thereby reducing the overall rack response while amplifying localized responses, particularly in the X-direction guardrail. Furthermore, while lower installation locations generally exhibited reduced seismic responses, the degree of reduction varied across structural members and connections due to the complex nature of nonlinear battery–rack interactions.

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1. 서 론
2. 사례 배터리랙 개요
3. 해석모델
    3.1 탄성 모델링 구성요소
    3.2 경계비선형 모델링 구성요소
4. 지진입력
    4.1 층응답스펙트럼
    4.2 입력 층가속도기록
5. 해석변수
6. 해석결과
    6.1 응답 평가기준
    6.2 변위응답
    6.3 주요 부재 내력비
    6.4 주요 접합부 내력비
7. 결 론
/ 감사의 글 /
/ REFERENCES /

• 김현호(인천대학교 일반대학원 건축학과 석사과정) | Kim Hyun Ho (Graduate Student, Department of Architectural Design and Engineering, Graduate School, Incheon National University)
• 박지훈(인천대학교 도시건축학부 교수) | Park Ji-Hun (Professor, Division of Architecture and Urban Design, Incheon National University) Corresponding author