Finite-Element Analysis of Reinforced Concrete Slabs with Punching Shear Reinforcement

Genikomsou, Aikaterini S.; Polak, Maria Anna

doi:10.1061/(asce)st.1943-541x.0001603

Cited by 37 publications

(17 citation statements)

References 18 publications

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“…The damaged plasticity model available in the ABAQUS material library was adopted to represent the concrete material. The concrete model calibrated on Slab SB1 26 has been assumed valid for Slab SB4, 25 because both of them were cast together with the same batch of concrete mixture and cured in the same manner besides having identical dimensions and boundary conditions during the test. The concrete damage plasticity parameters are listed in Table 2.…”

Section: Verification Of Finite Element Modelmentioning

confidence: 99%

“…The effective way to simulate the shear bolts (in Slab SB4) is by using three-dimensional quadratic beam element (denoted as B32). 25 A perfect bond between the concrete and shear bolts was also assumed and defined using the embedded method for simplicity and to bypass the numerical singularities in the analysis, if any. This was done by considering the mechanical behavior of the shear reinforcement in a thin slab plate that is not substantially reliant on the degree of bonding between materials but instead, largely governed by the end anchorages on the concrete surfaces.…”

Section: Verification Of Finite Element Modelmentioning

confidence: 99%

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Finite element analysis of interior slab‐column connections strengthened by steel angle plates

Taresh

Yatim

Azmi

2020

Structural Concrete

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This paper is concerned with the finite element modeling of strengthened interior slab-column connections in the existing continuous flat slab structural system by employing steel angle plates at the slab-column junctions and fastened by shear bolts. This technique utilizes the advantage of combined action between the angle plates and bolts in resisting shear particularly at the slabcolumn edges. Three-dimensional analysis was carried out on such slabs employing concrete damaged plasticity model in ABAQUS to investigate their performance in terms of punching shear resistance, load-displacement response, and crack pattern at failure. The numerical models were first validated against the experimental results reported by other researchers. The proposed strengthening technique results in a substantial increase of loadcarrying capacity ranging from about 59 to 79% compared to the unstrengthened slab, and has also provided better stiffness, ductility and energy absorption in the slab system that change the mode of failure from a pure punching shear to flexural failure. The finite element results are compared with the calculated values according to provisions in the current design codes for evaluation purposes. A simple but reliable approach which is based on yield line theory to estimate the flexural capacity of the strengthened slabs is also outlined in this paper.

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Section: Verification Of Finite Element Modelmentioning

confidence: 99%

Section: Verification Of Finite Element Modelmentioning

confidence: 99%

Finite element analysis of interior slab‐column connections strengthened by steel angle plates

Taresh

Yatim

Azmi

2020

Structural Concrete

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“…The same researchers [13] studied experienced punching shear behavior of interior and edge concrete flat slab models under static and cyclic load using nonlinear 3D finite element in Abaqus, utilizing from the concrete damage plasticity model for concrete material. He stated that the examined numerical models can be properly predict the experimental models in term of shear response.…”

Section: Genikomsou and Polakmentioning

confidence: 99%

Accuracy of concrete strength prediction behavior in simulating punching shear behavior of flat slab using finite element approach in Abaqus

Rasoul¹,

Taher²

2019

PEN

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This study investigates the accuracy of prediction normal concrete behavior in simulating punching shear strength of flat slab using finite element modelling in Abaqus. The Eurocode and FIB standards were adopted to predict concrete curves for compressive and tensile stresses, in addition to two models adopted in this study based on preview expereimental stuies. Then punching shear strength of two selected flat slab specimens (with and without studs) were simulated in Abaqus to validate punching shear force vs vertical midspan displacement for the adopted experimental work. Simulation results have shown very good results in comparison to the finite element analysis (FEA) curves. Also, the test results have showed that a comparable result with various codes models (ACI-318, BS-8110, EC2, and CEB FIB model code 90).

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“…A finite element software Abaqus was used to study the parameter of M/V ratio on punching strength of the connections. Concrete Damage Plasticity (CDP) in Abaqus to model the nonlinear characteristic and behavior of concrete give good predictions on the behavior of punching shear when it compares with experiment results [6,7]. The results of the analysis are compared to the ACI 318-14 code prediction.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

2019

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The occurrence of unbalanced moment in edge slab-column connections of flat plate structure cannot be avoided and increase the slab shear stress around the column. This paper investigates the effect of M/V ratio on punching shear strength of edge column-slab connections using finite element analysis. The Concrete Damage Plasticity (CDP) and truss model in Abaqus were used to model the nonlinear behavior of concrete and reinforcement, respectively. Ten values of the M/V ratio were applied to a subassembly edge connection model which was part of a properly design of a 5 story flat plate structure. The shear strength prediction of ACI 318-14 code on the effect of unbalanced moment in edge column-slab connection was also studied. The analysis results show that the effect of unbalanced moment on shear strength is not significant for M/V ratio less than 0.3. However, for M/V ratio greater than 0.3, the shear strength is reduced in an exponential order. The ACI 318-14 code overestimates prediction on connection’s shear strength for the M/V ratio less than 0.3. The code predictions are in a good agreement with the analysis results for the edge connection with the M/V ratio greater than 0.3.

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Finite-Element Analysis of Reinforced Concrete Slabs with Punching Shear Reinforcement

Cited by 37 publications

References 18 publications

Finite element analysis of interior slab‐column connections strengthened by steel angle plates

Finite element analysis of interior slab‐column connections strengthened by steel angle plates

Accuracy of concrete strength prediction behavior in simulating punching shear behavior of flat slab using finite element approach in Abaqus

Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

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