탄성받침의 강성 변동을 고려한 PSCI 거더 교량의 지진 응답 평가

서지정보

ㆍ발행기관 : 한국지진공학회 ㆍ수록지정보 : Jorunal of the Earthquake Engineering Society of Korea / 27권 / 4호
ㆍ저자명 : 윤혜진, 조창백, 김영진, 강준원

목차

1. 서 론
2. 대상 교량
2.1 교량 모델링
2.2 강성 변동을 고려한 탄성받침 해석조건
2.3 지진 하중
3. 지진응답 평가
3.1 고유주기 비교
3.2 받침의 전단강성 편차에 따른 지진응답 비교
3.3 받침의 수직강성 편차에 따른 지진응답 비교
4. 결 론
감사의 글

영어 초록

An elastic bearing must be strong against vertical loads and flexible against horizontal loads. However, due to the material characteristics of rubber, it may show variability due to the manufacturing process and environmental factors. If the value applied in the bridge design stage and the actual measured value have different values or if the performance during operation changes, the performance required in the design stage may not be achieved. In this paper, the seismic response of bridges was compared and analyzed by assuming a case where quality deviation occurs during construction compared to the design value for elastic bearings, which have not only always served as traditional bearings but also have had many applications in recent seismic reinforcement. The bearing's vertical stiffness and shear stiffness deviation were considered separately for the quality deviation. In order to investigate the seismic response, a time history analysis was performed using artificial seismic waves. The results confirmed that the change in the bearing's shear stiffness affects the natural period and response of the structure.

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