Structural Engineering and Mechanics

  • 제56권6호
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  • Pages.1063-1093
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  • 2015
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

New indices of structural robustness and structural fragility

  • Andre, Joao (Department of Structures, National Laboratory for Civil Engineering) ;
  • Beale, Robert (Department of Mechanical Engineering and Mathematical Sciences, Oxford Brookes University) ;
  • Baptista, Antonio M. (Department of Structures, National Laboratory for Civil Engineering)
  • 투고 : 2015.08.06
  • 심사 : 2015.12.02
  • 발행 : 2015.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Structural robustness has become an important design variable. However, based on the existing definitions of structural robustness it is often difficult to analyse and evaluate structural robustness, and sometimes not efficient since they mix structural robustness with several other structural variables. This paper concerns the development of a new structural robustness definition, and structural robustness and structural fragility indices. The basis for the development of the new indices is the analysis of the damage energy of structural systems for a given hazard scenario and involves a criterion to define an "unavoidable collapse" state. Illustrative examples are given detailing the steps and calculations needed to obtain values for both the structural robustness and the structural fragility indices. Finally, this paper presents the main advantages of the newly proposed definition and indices for the structural risk analysis over existing traditional methods.

키워드

참고문헌

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피인용 문헌

  1. Risk analysis of bridge falsework cuplok systems vol.13, pp.10, 2017, https://doi.org/10.1080/15732479.2016.1265991
  2. A new damage index for seismic fragility analysis of reinforced concrete columns vol.60, pp.5, 2016, https://doi.org/10.12989/sem.2016.60.5.875
  3. Experimental analysis of bridge falsework Cuplok systems vol.171, pp.9, 2018, https://doi.org/10.1680/jstbu.16.00081
  4. Analysis on the Time-Varying Fragility of Offshore Concrete Bridge vol.2019, pp.1099-0526, 2019, https://doi.org/10.1155/2019/2739212
  5. A method to evaluate the risk-based robustness index in blast-influenced structures vol.12, pp.1, 2015, https://doi.org/10.12989/eas.2017.12.1.047
  6. A correction method for objective seismic damage index of reinforced concrete columns vol.21, pp.6, 2015, https://doi.org/10.12989/cac.2018.21.6.741
  7. Systematic Reliability-Based Approach to Progressive Collapse vol.4, pp.4, 2015, https://doi.org/10.1061/ajrua6.0000990
  8. Numerical analysis of bridge falsework Cuplok systems vol.172, pp.3, 2015, https://doi.org/10.1680/jstbu.16.00082
  9. Analysis on damage of RC frames retrofitted with buckling-restrained braces based on estimation of damage index vol.70, pp.6, 2015, https://doi.org/10.12989/sem.2019.70.6.781
  10. Proposal of Guidelines for the Evolution of Robustness Framework in the Future Generation of Eurocodes vol.29, pp.3, 2015, https://doi.org/10.1080/10168664.2019.1599706