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논문 기본 정보

자료유형
학술저널
저자정보
Chang Hong Chen (Northwestern Polytechnical University) Yan Fei Zhu (Northwestern Polytechnical University) Yao Yao (Northwestern Polytechnical University) Ying Huang (Xi’an University of Architecture and Technology)
저널정보
국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.21 No.3
발행연도
2016.1
수록면
553 - 571 (19page)

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초록· 키워드

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The progressive collapse potential of steel moment framed structures due to abrupt removal of a column is investigated based on the energy principle. Based on the changes of component's internal energy, this paper analyzes structural member's sensitivity to abrupt removal of a column to determine a sub-structure resisting progressive collapse. An energy-based structural damage index is defined to judge whether progressive collapse occurs in a structure. Then, a simplified beam damage model is proposed to analyze the energies absorbed and dissipated by structural beams at large deflections, and a simplified modified plastic hinges model is developed to consider catenary action in beams. In addition, the correlation between bending moment and axial force in a beam during the whole deformation development process is analyzed and modified, which shows good agreement with the experimental results.

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