Computers and Concrete

  • 제19권6호
  • /
  • Pages.689-699
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  • 2017
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Determination of earthquake safety of RC frame structures using an energy-based approach

  • Merter, Onur (Department of Civil Engineering, Dokuz Eylul University) ;
  • Ucar, Taner (Department of Architecture, Dokuz Eylul University) ;
  • Duzgun, Mustafa (Department of Civil Engineering, Dokuz Eylul University)
  • 투고 : 2016.01.06
  • 심사 : 2017.02.25
  • 발행 : 2017.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

An energy-based approach for determining earthquake safety of reinforced concrete frame structures is presented. The developed approach is based on comparison of plastic energy capacities of the structures with plastic energy demands obtained for selected earthquake records. Plastic energy capacities of the selected reinforced concrete frames are determined graphically by analyzing plastic hinge regions with the developed equations. Seven earthquake records are chosen to perform the nonlinear time history analyses. Earthquake plastic energy demands are determined from nonlinear time history analyses and hysteretic behavior of earthquakes is converted to monotonic behavior by using nonlinear moment-rotation relations of plastic hinges and plastic axial deformations in columns. Earthquake safety of selected reinforced concrete frames is assessed by using plastic energy capacity graphs and earthquake plastic energy demands. The plastic energy dissipation capacities of the frame structures are examined whether these capacities can withstand the plastic energy demands for selected earthquakes or not. The displacements correspond to the mean plastic energy demands are obtained quite close to the displacements determined by using the procedures given in different seismic design codes.

키워드

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피인용 문헌

  1. Artificial Ground Motions and Nonlinear Response of RC Structures vol.2020, pp.None, 2017, https://doi.org/10.1155/2020/8849623