Computers and Concrete

  • 제21권4호
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  • Pages.355-365
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  • 2018
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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Direct displacement-based seismic assessment of concrete frames

  • Peng, Chu (Department of Civil Engineering, South China University of Technology) ;
  • Guner, Serhan (Department of Civil and Environmental Engineering, University of Toledo)
  • 투고 : 2017.07.23
  • 심사 : 2017.11.15
  • 발행 : 2018.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

Five previously-tested reinforced concrete frames were modelled using a nonlinear finite element analysis procedure to demonstrate the accurate response simulations for seismically-deficient frames through pushover analyses. The load capacities, story drifts, and failure modes were simulated. This procedure accounts for the effects of shear failures and the shear-axial force interaction, and thus is suitable for modeling seismically-deficient frames. It is demonstrated that a comprehensive analysis method with a capability of simulating material constitutive response and significant second-order mechanisms is essential in achieving a satisfactory response simulation. It is further shown that such analysis methods are invaluable in determining the expected seismic response, safety, and failure mode of the frame structures for a performance-based seismic evaluation. In addition, a new computer program was developed to aid researchers and engineers in the direct displacement-based seismic design process by assessing whether a frame structure meets the code-based performance requirements by analyzing the analysis results. As such, the proposed procedure facilitates the performance-based design of new buildings as well as the numerical assessment and retrofit design of existing buildings. A sample frame analysis was presented to demonstrate the application and verification of the approach.

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참고문헌

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피인용 문헌

  1. Elasto-Damage constitutive modelling of recycled aggregate concrete vol.28, pp.1, 2018, https://doi.org/10.12989/cac.2021.28.1.013