Nonlinear finite element analysis of deep reinforced concrete coupling beams

Zhao, Zi-Long; Kwan, A.K.H.; He, Xiao

doi:10.1016/j.engstruct.2003.08.014

Cited by 46 publications

(19 citation statements)

References 16 publications

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“…The behavior of solid RC deep beams strengthened with CFRP composites has received little attention in the literature [24][25][26]. Islam et al [25] reported up to 40% enhancement in the shear strength of deep beams due to the use of externally bonded CFRP system.…”

Section: Introductionmentioning

confidence: 98%

Nonlinear finite element modeling of concrete deep beams with openings strengthened with externally-bonded composites

2012

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Section: Introductionmentioning

confidence: 98%

Nonlinear finite element modeling of concrete deep beams with openings strengthened with externally-bonded composites

2012

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“…In recent decades, extensive studies have been carried out to investigate the nonlinear behavior of the coupling beam or its influence on the structural performance of the coupled wall. Either the coupling beams or the coupled walls are involved in these studies by experimental, theoretical, or analytical methodologies [1][2][3][4][5][6][7][8][9][10][11][12][13]. e research outcomes generally indicate that the coupling beam behaves more like a deep beam due to its small span/depth ratio.…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of Reinforced Concrete Coupled Walls with Segmental Coupling Beams

et al. 2019

Advances in Civil Engineering

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A novel reinforced concrete (RC) segmental coupling beam (SCB), which mainly comprises the energy dissipating (ED) segment and load bearing (LB) segment, is proposed in this paper. In order to examine its applicability in engineering practice, one scaled RC coupled wall specimen with the proposed SCBs was constructed and experimentally investigated under cyclic loading. The results show that both cracking and yielding occurred much earlier on the ED segments of the SCBs compared to the LB segments. In addition, a lot more cracks distributed densely on the ED segments were observed at the end of the test. It demonstrates that the ED segments play a main role in the energy dissipation, while the LB segments are always reliably capable of carrying the gravity load transferred from the floor beams. Finally, the finite element analysis model of the RC coupled wall is established and validated by comparing the analysis results with the experimental ones. Utilizing the proposed analysis model, parametric analyses are conducted to investigate the influence of a variety of design parameters, including the axial compressive ratio of the wall pier, concrete strength, and especially sectional height of the SCB, on seismic performance of the coupled wall. It shows that as the sectional height of the ED segment increases, the energy dissipating capacity of the coupled wall may improve while the ability of supporting the gravity load is lowered.

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“…In this model, the dowel force and dowel deformation are expressed in smeared forms and the dowel stiffness matrix is assembled into the concrete element stiffness matrix. It has been applied to analyse deep beams and coupling beams [10,11].…”

Section: Introductionmentioning

confidence: 99%

Modelling Dowel Action of Discrete Reinforcing Bars in Cracked Concrete Structures

Kwan¹,

Ng²,

Lam³

2010

AIP Conference Proceedings

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Dowel action is one of the component actions for shear force transfer in cracked reinforced concrete. In finite element analysis of concrete structures, the use of discrete representation of reinforcing bars is considered advantageous over the smeared representation due to the relative ease of modelling the bond-slip behaviour. However, there is very limited research on how to simulate the dowel action of discrete reinforcing bars. Herein, a numerical model for dowel action of discrete reinforcing bars crossing cracks in concrete is developed. The model features the derivation of dowel stiffness matrix based on beam-on-elasticfoundation theory and the direct assemblage of dowel stiffness into the concrete element stiffness matrices. The dowel action model is incorporated in a nonlinear finite element programme with secant stiffness formulation. Deep beams tested in the literature are analysed and it is found that the incorporation of dowel action model improves the accuracy of analysis.

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Nonlinear finite element analysis of deep reinforced concrete coupling beams

Cited by 46 publications

References 16 publications

Nonlinear finite element modeling of concrete deep beams with openings strengthened with externally-bonded composites

Nonlinear finite element modeling of concrete deep beams with openings strengthened with externally-bonded composites

Seismic Performance of Reinforced Concrete Coupled Walls with Segmental Coupling Beams

Modelling Dowel Action of Discrete Reinforcing Bars in Cracked Concrete Structures

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