Computers and Concrete

  • 제20권1호
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  • Pages.85-97
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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

A physically consistent stress-strain model for actively confined concrete

  • Shahbeyk, Sharif (Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway) ;
  • Moghaddam, Mahshid Z. (Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway) ;
  • Safarnejad, Mohammad (Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway)
  • 투고 : 2016.06.21
  • 심사 : 2017.03.23
  • 발행 : 2017.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

With a special attention to the different stages of a typical loading path travelled in a fluid confined concrete test, this paper introduces a physically consistent model for the stress-strain curve of actively confined normal-strength concrete in the axial direction. The model comprises of the five elements of: (1) a criterion for the peak or failure strength, (2) an equation for the peak strain, (3) a backbone hydrostatic curve, (4) a transient hardening curve linking the point of departure from the hydrostatic curve to the failure point, and finally (5) a set of formulas for the post-peak region. Alongside, relevant details and shortcomings of existing models will be discussed in each part. Finally, the accuracy and efficiency of the proposed model have been verified in a set of simulations which compare well with the experimental results from the literature.

키워드

참고문헌

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