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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.28 No.4
- 발행연도
- 2018.1
- 수록면
- 427 - 438 (12page)
이용수
초록· 키워드
오류제보하기
Static stability is a decisive factor in the design of domes. Stability-related external factors, such as load and supports, are incorporated into structural vulnerability theory by the definition of a relative rate of joint well-formedness (<i>r<sub>r</sub></i>). Hence, the instability mechanism of domes can be revealed. To improve stability, an optimization model against instability, which takes the maximization of the lowest <i>r<sub>r</sub></i> (<i>r</i><sub><i>r</i>,min</sub>) as the objective and the discrete member sections as the variables, is established with constraints on the design requirements and steel consumption. Optimizations are performed on two real-life Kiewitt-6 model domes with a span of 23.4 m and rise of 11.7 m, which are initially constructed for shaking table collapse test. Well-formedness analyses and stability calculation (via arc-length method) of the models throughout the optimization history demonstrate that this proposed method can effectively enhance <i>r</i><sub><i>r</i>,min</sub and optimize the static stability of shell-like structures. Additionally, seismic performance of the optimum models subjected to the same earthquake as in the shaking table test is checked. The supplemental simulations prove that the optimum models are superior to the original models under earthquake load as well.
목차
등록된 정보가 없습니다.
참고문헌 (45)
참고문헌 신청
Agarwal, J. / 2001 / Vulnerability of 3-dimensional trusses / Struct. Safety 23(3):203~220
Musa Artar / 2016 / A comparative study on optimum design of multi-element truss structures / Steel and Composite Structures, An International Journal 22(3):521~535
Borri, C. / 1988 / Buckling and post-buckling behavior of single layer reticulated shells affected by random imperfections / Comput. Struct. 30(4):937~943
Jianguo Cai / 2013 / Non-linear stability analysis of a hybrid barrel vault roof / Steel and Composite Structures, An International Journal 14(6):571~586
Jianguo Cai / 2017 / Nonlinear stability analysis of a radially retractable hybrid grid shell in the closed position / Steel and Composite Structures, An International Journal 24(3):287~296
Musa Artar / 2016 / A comparative study on optimum design of multi-element truss structures / Steel and Composite Structures, An International Journal 22(3):521~535
Borri, C. / 1988 / Buckling and post-buckling behavior of single layer reticulated shells affected by random imperfections / Comput. Struct. 30(4):937~943
Jianguo Cai / 2013 / Non-linear stability analysis of a hybrid barrel vault roof / Steel and Composite Structures, An International Journal 14(6):571~586
Jianguo Cai / 2017 / Nonlinear stability analysis of a radially retractable hybrid grid shell in the closed position / Steel and Composite Structures, An International Journal 24(3):287~296
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