Computational Modelling of RC Slabs Cracking with an Embedded Discontinuity Formulation

Juãrez-Luna, Gelacio; Tena‐Colunga, Arturo; Ayala, Gustavo

doi:10.1590/1679-78251890

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Shu et al (2015) studied the response of slabs subjected to bending with non-linear finite element analysis in the software DIANA, modeling the concrete with 3D elements and the steel reinforcement with bar elements. Juárez-Luna et al (2015) investigates the cracking process of reinforced concrete slabs subject to vertical load. Concrete was modeled with hexahedral finite elements with embedded discontinuities; whereas steel reinforcement was modeled by 3D bar elements, placed along the edges of the solid elements.…”

Section: Introductionmentioning

confidence: 99%

FE Modeling of Circular, Elliptic, and Triangular Isolated Slabs With a Continuous Damage Model

Juãrez-Luna

Garatachea

2019

Front. Built Environ.

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The non-linear behavior of reinforced concrete circular, elliptic, and triangular isolated slabs was studied using computational mechanics. Concrete was modeled with a damage model which includes softening, while the behavior of the reinforcing steel was modeled with a 1D bilinear plasticity model. The constitutive models and the finite element method were validated by comparing the computed numerical results with the experimental results of a rectangular slab reported in the scientific literature. The coefficient method is proposed for its simplicity to calculate design bending moments in slabs with circular, elliptic, and triangular geometries. These coefficients were computed from the FE analysis. The layout of steel reinforcement is proposed, particularly lengths of zones for positive and negative moments, respectively. The crack paths are showed, which are depending on the boundary conditions, acting loads, and geometry of the slabs.

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Section: Introductionmentioning

confidence: 99%

FE Modeling of Circular, Elliptic, and Triangular Isolated Slabs With a Continuous Damage Model

Juãrez-Luna

Garatachea

2019

Front. Built Environ.

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Parametric investigation on behaviors of eccentric RC exterior and interior beam-column subassemblies

Abdel-Latif,

Soliman,

Sumelka

et al. 2024

Mechanics Based Design of Structures and Machines

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Effect of Geometric Parameters on the Behavior of Eccentric RC Beam–Column Joints

Abdel-Latif,

Nassr,

Sumelka

et al. 2023

Buildings

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Over the last century, the seismic behavior of reinforced concrete (RC) beam–column joints has drawn many researchers’ attention due to their complex stress state. Such joints should possess sufficient capacity and ductility to ensure integrity and safety when subjected to cyclic loading during seismic events. In the literature, while most studies have focused on the behavior of concentric beam–column joints, few studies investigated the response of eccentric beam–column joints, in which the beam’s centerline is offset from the centerline of the column. Recent earthquakes demonstrated severe damage in eccentric beam–column joints due to their brittle torsional behavior, which may threaten the ductility required for the overall structural performance. To investigate the effect of brittle failure on the strength, ductility, and stability of eccentric beam–column joints, nonlinear finite element (FE) models were developed and validated. The FE model was employed to study the effect of some geometric parameters on the global and local behaviors of beam–column joints, including the joint type (exterior and interior), the column aspect ratio, and the joint aspect ratio. The results show that the joint aspect ratio, which is the ratio of beam-to-column depth, has a predominant effect on the failure behavior of the joint. Additionally, the increase in column aspect ratio alters the failure mode from brittle joint shear failure to ductile beam-hinge, although there is an increase in the joint torsional moment. The current study also showed that interior joints exhibited a higher out-of-plane moment as well as more extensive column torsion cracks compared to exterior joints.

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Computational Modelling of RC Slabs Cracking with an Embedded Discontinuity Formulation

Cited by 3 publications

References 20 publications

FE Modeling of Circular, Elliptic, and Triangular Isolated Slabs With a Continuous Damage Model

FE Modeling of Circular, Elliptic, and Triangular Isolated Slabs With a Continuous Damage Model

Parametric investigation on behaviors of eccentric RC exterior and interior beam-column subassemblies

Effect of Geometric Parameters on the Behavior of Eccentric RC Beam–Column Joints

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