국제초고층학회논문집 (International Journal of High-Rise Buildings)
- 제3권4호
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- Pages.297-304
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- 2014
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- 2234-7224(pISSN)
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- 2288-9930(eISSN)
DOI QR Code
Sensitivity Analysis Related to Redundancy of Regular and Irregular Framed Structures after Member Disappearance
- Ito, Takumi (Tokyo University of Science) ;
- Takemura, Toshinobu (Yokohama National University)
- 발행 : 2014.12.31
초록
Recently, there have been some reported examples of structural collapse due to gravity, subsequent to damage from accident or an excitation that was not prepared for in the design process. A close view of new concepts, such as a redundancy and key elements, has been taken with the aim of ensuring the robustness of a structure, even in the event of an unexpected disturbance. The author previously proposed a sensitivity index of the vertical load carrying capacity to member disappearance for framed structures. The index is defined as the ratio of the load carrying capacity after a member or a set of an adjacent member disappears, to the original load carrying capacity. The member with the highest index may be regarded as a key element. The concept of bio-mimicry is being applied to various fields of engineering, and tree-shaped structures are sometimes used for the design of building structures. In this study a sensitivity analysis is applied to the irregular-framed structures such as tree-shaped structures.
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