논문 상세보기
In this study, alternative seismic force-resisting systems for plant structure supporting equipment were designed, and the seismic performance thereof was compared using nonlinear dynamic analysis. One alternative seismic force-resisting system was designed per the requirement for ordinary moment-resisting and concentrically braced frames but with a reduced base shear. The other seismic force-resisting system was designed by accommodating seismic details of intermediate and unique moment-resisting frames and special concentrically braced frames. Different plastic hinge models were applied to ordinary and ductile systems based on the validation using existing test results. The control model obtained by code-based flexible design and/or reduction of base shear did not satisfy the seismic performance objectives, but the alternative structural system did by strengthened panel zones and a reduced effective buckling length. The seismic force to equipment calculated from the nonlinear dynamic analysis was significantly lower than the equivalent static force of KDS 41 17 00. The comparison of design alternatives showed that the seismic performance required for a plant structure could be secured economically by using performance-based design and alternative seismic-force resisting systems adopting minimally modified seismic details.
2. 플랜트 설비지지 구조물
2.1 구조물 개요
2.2 집진설비 모델링
3. 대안구조시스템
3.1 기본설계
3.2 모멘트골조 대안설계요구사항
3.3 가새골조 대안설계요구사항
3.4 탄성 기본설계 결과
4. 비선형 해석모델
4.1 적용 소성힌지 모델 검증
4.2 보
4.3 기둥
4.4 가새
4.5 패널존
5. 지반운동
6. 성능평가 결과
6.1 지진력저항 시스템
6.2 설비 작용하중
6.3 설비 지지부재
7. 경제성 비교
8. 결 론
감사의 글
REFERENCES
