Computers and Concrete

  • 제15권3호
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  • Pages.373-389
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  • 2015
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical modelling of nonlinear behaviour of prestressed concrete continuous beams

  • Lou, Tiejiong (CEMUC, Department of Civil Engineering, University of Coimbra) ;
  • Lopes, Sergio M.R. (CEMUC, Department of Civil Engineering, University of Coimbra) ;
  • Lopes, Adelino V. (Department of Civil Engineering, University of Coimbra)
  • 투고 : 2013.07.03
  • 심사 : 2015.01.18
  • 발행 : 2015.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The development of a finite element model for the geometric and material nonlinear analysis of bonded prestressed concrete continuous beams is presented. The nonlinear geometric effect is introduced by the coupling of axial and flexural fields. A layered approach is applied so as to consider different material properties across the depth of a cross section. The proposed method of analysis is formulated based on the Euler-Bernoulli beam theory. According to the total Lagrangian description, the constructed stiffness matrix consists of three components, namely, the material stiffness matrix reflecting the nonlinear material effect, the geometric stiffness matrix reflecting the nonlinear geometric effect and the large displacement stiffness matrix reflecting the large displacement effect. The analysis is capable of predicting the nonlinear behaviour of bonded prestressed concrete continuous beams over the entire loading stage up to failure. Some numerical examples are presented to demonstrate the validity and applicability of the proposed model.

키워드

과제정보

연구 과제 주관 기관 : FCT

참고문헌

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피인용 문헌

  1. Effect of bond on flexure of concrete beams prestressed with FRP tendons vol.173, 2017, https://doi.org/10.1016/j.compstruct.2017.04.021
  2. Moment redistribution in two-span prestressed NSC and HSC beams vol.50, pp.6, 2017, https://doi.org/10.1617/s11527-017-1116-5
  3. Determination of minimum depth of prestressed concrete I-Girder bridge for different design truck vol.24, pp.4, 2015, https://doi.org/10.12989/cac.2019.24.4.303