Structural Engineering and Mechanics

  • 제39권4호
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  • Pages.599-620
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  • 2011
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Static vulnerability of existing R.C. buildings in Italy: a case study

  • Maria, Polese (Department of Structural Engineering, University of Naples "Federico II") ;
  • Gerardo M., Verderame (Department of Structural Engineering, University of Naples "Federico II") ;
  • Gaetano, Manfredi (Department of Structural Engineering, University of Naples "Federico II")
  • 투고 : 2010.09.28
  • 심사 : 2011.05.25
  • 발행 : 2011.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

The investigation on possible causes of failures related to documented collapses is a complicated issue, primarily due to the scarcity and inadequacy of information available. Although several studies have tried to understand which are the inherent structural deficiencies or circumstances associated to failure of the main structural elements in a reinforced concrete frame, to the authors knowledge a uniform approach for the evaluation building static vulnerability, does not exist yet. This paper investigates, by means of a detailed case study, the potential failure mechanisms of an existing reinforced concrete building. The linear elastic analysis for the three-dimensional building model gives an insight on the working conditions of the structural elements, demonstrating the relevance of a number of structural faults that could sensibly lower the structure's safety margin. Next, the building's bearing capacity is studied by means of parametric nonlinear analysis performed at the element's level. It is seen that, depending on material properties, concrete strength and steel yield stress, the failure hierarchy could be dominated by either brittle or ductile mechanisms.

키워드

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