DOI QR코드

DOI QR Code

3D nonlinear mixed finite-element analysis of RC beams and plates with and without FRP reinforcement

  • Hoque, M. (Department of Civil Engineering, The University of Manitoba) ;
  • Rattanawangcharoen, N. (Department of Civil Engineering, The University of Manitoba) ;
  • Shah, A.H. (Department of Civil Engineering, The University of Manitoba) ;
  • Desai, Y.M. (Department of Civil Engineering, Indian Institute of Technology Powai)
  • 투고 : 2006.05.15
  • 심사 : 2007.02.05
  • 발행 : 2007.04.25

초록

Three 3D nonlinear finite-element models are developed to study the behavior of concrete beams and plates with and without external reinforcement by fibre-reinforced plastic (FRP). All three models are formulated based upon the 3D theory of elasticity. The stress model is modified from the element developed by Ramtekkar, et al. (2002) to incorporate material nonlinearity in the formulation. Both transverse stress and displacement components are used as nodal degrees-of-freedom to ensure the continuity of both stress and displacement components between the elements. The displacement model uses only displacement components as nodal degrees-of-freedom. The transition model has both stress and displacement components as nodal degrees-of-freedom on one surface, and only displacement components as nodal degrees-of-freedom on the opposite surface. The transition model serves as a connector between the stress and the displacement models. The developed models are validated by comparing the results of the analyses with an existing experimental result. Parametric studies of the effects of the externally reinforced FRP on the load capacity of reinforced concrete (RC) beams and concrete plates are performed to demonstrate the practicality and the efficiency of the proposed models.

키워드

참고문헌

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피인용 문헌

  1. A 3D finite element model for reinforced concrete structures analysis vol.4, pp.4, 2011, https://doi.org/10.1590/S1983-41952011000400002
  2. Shear strengthening of reinforced concrete beams by means of vertical prestressed reinforcement vol.12, pp.3, 2016, https://doi.org/10.1080/15732479.2015.1019893
  3. Modeling of nonlinear cyclic response of shear-deficient RC T-beams strengthened with side bonded CFRP fabric strips vol.8, pp.2, 2007, https://doi.org/10.12989/cac.2011.8.2.193
  4. An efficient materially nonlinear finite element model for reinforced concrete beams based on layered global-local kinematics vol.229, pp.3, 2018, https://doi.org/10.1007/s00707-017-2081-3