Numerical Punching Shear Analysis of Unbonded Post-Tensioned Slabs with Inverted-U Shaped

Khatib, Milad; Saleh, Zaher Abou; Baalbaki, Oussama; Temsah, Yehia

doi:10.1007/s12205-018-1505-5

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…The findings were in comparison to an identical numerical model (ABAQUS, 2014) [ 17 ]. The effectiveness in utilizing hairpin reinforcement were validated recently, through several experimental tests, and numerical analysis [18] , [19] , [20] , [21] , [22] , [23] .…”

Section: Investigation Objectives and Significancementioning

confidence: 99%

Behavior of monostrand anchors in unbonded post tension flat slab system

Khatib,

Abou Saleh,

Baalbaki

et al. 2024

Heliyon

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Section: Investigation Objectives and Significancementioning

confidence: 99%

Behavior of monostrand anchors in unbonded post tension flat slab system

Khatib,

Abou Saleh,

Baalbaki

et al. 2024

Heliyon

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“…The embedded constraint was used to model the perfect bond between ECC reinforcements in the interaction between steel reinforcement and ECC (Figure reinforcement bars are employed as embedded regions in this constraint, where serves as the host region. The influence of bond-slip is ignored in the embedded modeling method, and it is considered when determining the tensile stiffening b of concrete [35][36][37]. Modeling boundary conditions similar to experiments is essential to achie predictions with the experimental results.…”

Section: Geometrical Modelmentioning

confidence: 99%

“…Steel reinforcement bars are employed as embedded regions in this constraint, whereas ECC serves as the host region. The influence of bond-slip is ignored in the embedded region modeling method, and it is considered when determining the tensile stiffening behavior of concrete [35][36][37].…”

Section: Geometrical Modelmentioning

confidence: 99%

Analytical and Numerical Investigation of the Behavior of Engineered Cementitious Composite Members under Shear Loads

Arulanandam¹,

Sivasubramnaian²,

Chellapandian³

et al. 2022

Materials

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This research discusses the performance of engineered cementitious composite (ECC) beams with and without transverse reinforcements using thorough analytical and finite element (FE) approaches under shear. The overall goal of this investigation was to assess the impact of various design characteristics, such as (i) shear span-to-effective depth ratio, (ii) transverse reinforcement ratio, etc., on the shear behavior of ECC beams. Nonlinear three-dimensional (3-D) FE analysis was performed with the commercial software ABAQUS to simulate the shear performance of ECC beams by employing the material properties obtained from the damage plasticity model. The correctness of the proposed FE model was validated with the benchmark experiments available in the literature. The developed FE model accurately computed the ECC beam’s overall load–deflection behavior and failure modes. In addition, the provision available in the Architectural Institute of Japan (AIJ) A-method was successfully employed to assess the shear load-carrying capacity of ECC beams. Furthermore, the effects of transverse reinforcement (pw) and shear span-to-depth ratio (a/d) on the behavior of ECC beams were also investigated. From a detailed parametric study, it was understood that a decreased a/d ratio exhibits enhanced load-carrying capacity for beams with and without stirrups for a particular cross-section. It was also observed that for the entire a/d ratio, the amount of stirrups had no substantial effect on the load-carrying capability of ECC beams.

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Numerical Evaluation of Punching Shear Capacity Between Bonded and Unbonded Post-tensioned Slab Using Inverted-U Shape Reinforcement

Khatib¹,

Saleh²

2023

Lecture Notes in Civil Engineering

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The Both bonded and unbonded prestressing tendons may be used to reinforce post-tensioned (PT) concrete members. The binding state of tendons may have an impact on how well different types of PT concrete elements function in flexural and shear loads. Inverted-U shape reinforcement was used experimentally to enhance the behavior of different structural elements. The obtained results confirmed the proposed model’s accuracy for both PT slabs and beams (bonded, and unbonded). This study's major goal is to compare numerically PT concrete slabs provided with inverted-U shape reinforcement with the two different tendon systems and evaluate their performances due to applying punching shear load. To do this, the PT slab that has already been tested is reexamined numerically. By using, a nonlinear finite element, the results were carried out utilizing visualization tools. For a better study of the behavior of bonded and unbonded PT slabs, the obtained numerical results, and the previous experimental one are compared. Good correlations are shown.

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Numerical Punching Shear Analysis of Unbonded Post-Tensioned Slabs with Inverted-U Shaped

Cited by 6 publications

References 8 publications

Behavior of monostrand anchors in unbonded post tension flat slab system

Behavior of monostrand anchors in unbonded post tension flat slab system

Analytical and Numerical Investigation of the Behavior of Engineered Cementitious Composite Members under Shear Loads

Numerical Evaluation of Punching Shear Capacity Between Bonded and Unbonded Post-tensioned Slab Using Inverted-U Shape Reinforcement

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