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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.37 No.2
- 발행연도
- 2020.1
- 수록면
- 175 - 191 (17page)
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초록· 키워드
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In this article, for the first time, the seismic behavior of elliptic-braced moment resisting frame (ELBRF) is assessed through a laboratory program and numerical analyses of FEM specifically focused on the development of global- and local-type failure mechanisms. The ELBRF as a new lateral braced system, when installed in the middle bay of the frames in the facade of a building, not only causes no problem to the opening space of the facade, but also improves the structural behavior. Quantitative and qualitative investigations were pursued to find out how elliptic braces would affect the failure mechanism of ELBRF structures exposed to seismic action as a nonlinear process. To this aim, an experimental test of a ½ scale single-story single-bay ELBRF specimen under cyclic quasi-static loading was run and the results were compared with those for X-bracing, knee-bracing, K-bracing, and diamond-bracing systems in a story base model. Nonlinear FEM analyses were carried out to evaluate failure mechanism, yield order of components, distribution of plasticity, degradation of structural nonlinear stiffness, distribution of internal forces, and energy dissipation capacity. The test results indicated that the yield of elliptic braces would delay the failure mode of adjacent elliptic columns and thus, help tolerate a significant nonlinear deformation to the point of ultimate failure. Symmetrical behavior, high energy absorption, appropriate stiffness, and high ductility in comparison with the conventional systems are some of the advantages of the proposed system.
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참고문헌 (72)
참고문헌 신청
2010 / AISC 360-10, Specification for Structural Steel Buildings / American Institute of Steel Construction
Akiyama, H. / 1985 / Earthquake resistant limit state design for buildings / University of Tokyo Press
Erfan Alavi / 2013 / Experimental study on diagonally stiffened steel plate shear walls with central perforation / Journal of Constructional Steel Research 89:9~20
Applied Technology Council / 1992 / Guidelines for cyclic seismic testing of component of steel structures
Astaneh-Asl, A. / 1982 / Cyclic Behavior of Double Angle Bracing Members with End Gusset Plates
Akiyama, H. / 1985 / Earthquake resistant limit state design for buildings / University of Tokyo Press
Erfan Alavi / 2013 / Experimental study on diagonally stiffened steel plate shear walls with central perforation / Journal of Constructional Steel Research 89:9~20
Applied Technology Council / 1992 / Guidelines for cyclic seismic testing of component of steel structures
Astaneh-Asl, A. / 1982 / Cyclic Behavior of Double Angle Bracing Members with End Gusset Plates
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