원거리와 근거리 지진파의 특성을 고려한 항만 컨테이너 크레인의 지진취약도 분석

서지정보

ㆍ발행기관 : 한국지진공학회 ㆍ수록지정보 : Jorunal of the Earthquake Engineering Society of Korea / 27권 / 2호
ㆍ저자명 : 박주현, 민지영, 이종한

목차

A B S T R A C T
1. 서 론
2. 컨테이너 크레인의 수치모델링
2.1 컨테이너 크레인 개요 및 경계조건 정의
2.2 컨테이너 크레인 수치모델링
3. 지진특성을 고려한 지진파 선정
4. 컨테이너 크레인 지진취약도 분석
4.1 컨테이너 크레인 손상한계상태 정의
4.2 지진취약도 분석 절차
4.3 지진특성에 따른 지진취약도 비교분석
5. 결 론
REFERENCES

영어 초록

The recent increase in earthquake activities has highlighted the importance of seismic performance evaluation for civil infrastructures. In particular, the container crane essential to maintaining the national logistics system with port operation requires an exact evaluation of its seismic response. Thus, this study aims to assess the seismic vulnerability of container cranes considering their seismic characteristics. The seismic response of the container crane should account for the structural members’ yielding and buckling, as well as the crane wheel’s uplifting derailment in operation. The crane’s yielding and buckling limit states were defined using the stress of crane members based on the load and displacement curve obtained from nonlinear static analysis. The derailment limit state was based on the height of the rail, and nonlinear dynamic analysis was performed to obtain the seismic fragility curves considering defined limit states and seismic characteristics. The yield and derailment probabilities of the crane in the near-fault ground motion were approximately 1.5 to 4.7 and 2.8 to 6.8 times higher, respectively, than those in the far-fault ground motion.

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