Structural Engineering and Mechanics

  • 제66권4호
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  • Pages.531-542
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  • 2018
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simplified analytical model for flexural response of external R.C. frames with smooth rebars

  • Campione, Giuseppe (Department of Civil, Environmental, Aerospace and Material Engineering (DICAM) - University of Palermo) ;
  • Cannella, Francesco (Department of Civil, Environmental, Aerospace and Material Engineering (DICAM) - University of Palermo) ;
  • Cavaleri, Liborio (Department of Civil, Environmental, Aerospace and Material Engineering (DICAM) - University of Palermo) ;
  • Monaco, Alessia (Department of Civil, Environmental, Aerospace and Material Engineering (DICAM) - University of Palermo)
  • 투고 : 2017.12.17
  • 심사 : 2018.02.27
  • 발행 : 2018.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel distortion. Experimental data recently given in the literature referring to the load-deflection response of external RC joints with smooth rebars are utilized to validate the model, showing good agreement. Finally, the proposed model can be considered a useful instrument for preliminary static verification of existing external RC beam-column joints with smooth rebars for both strength and ductility verification.

키워드

참고문헌

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