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Earthquake Damage Assessment for RC Structures Based on Fuzzy Sets

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  • Haoxiang He
  • Maolin Cong
  • Yongwei Lv

Abstract

A global damage index based on multiple linear force-deformation curves in pushover analysis is presented to evaluate the integrated damage of reinforced concrete structure. The modified coefficient is provided considering the cyclic load and hysteresis energy. The number of inelastic cycles and the coefficient of hysteresis energy concentration are also introduced as damage indices. Hence, multiple damage indices about displacement and energy for performance-based design are considered. The relation of multiple damage indices or factors and the fuzzy damage set is presented by comprehensive fuzzy evaluation; hence, a performance-based multiple fuzzy seismic damage-assessment method for reinforced concrete frame structures is established. The method can be accomplished based on pushover analysis, code spectrum, and capacity spectrum method. The fuzzy seismic damage-assessment method is verified through nonlinear analysis four different structures and the corresponding results and assessment conclusions are accurate.

Suggested Citation

  • Haoxiang He & Maolin Cong & Yongwei Lv, 2013. "Earthquake Damage Assessment for RC Structures Based on Fuzzy Sets," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-11, December.
    • Handle: RePEc:hin:jnlmpe:254865
    DOI: 10.1155/2013/254865
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