Numerical analysis of tilted angle shear connectors in steel-concrete composite systems

Khorramian, Koosha; Maleki, Shervin; Shariati, Mahdi; Jalali, Abdolrahim; Tahir, M. M.

doi:10.12989/scs.2017.23.1.067

Cited by 66 publications

(12 citation statements)

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“…Shear connectors represent an important part of composite beam design. An effective connector provides adequate shear strength between the steel beam and concrete for full composite action [6,7]. The core corresponds to the web of the I-beam, as it resists the shear loads and stabilizes the faces against wrinkling or buckling.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that continuous shear connector type could provide better performance compared to a shear connector style stud. The structural performance of glass fiber reinforced polymer should be equal to that of conventional materials such as carbon steel [7,13]. The polymer coating stopped the sandwich layers from wrinkling and buckling the fibercomposite skins.…”

Section: Introductionmentioning

confidence: 99%

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Effect of shear connectors on strength of structural sandwich panels

et al. 2020

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This study investigates the structural behavior of precast lightweight sandwich panels with dimensions of (500 × 500 mm) and 120 mm height. Specimens consists of three layers: concrete face wythes (with thicknesses of 45 mm and grades of (80, 70) MPa) and high-density foam (with thickness of 30 mm) as a core material. Steel and carbon fiber shear connectors (rods and strips) were used in panels with angles of (45°, 60° and 90°). Three-point flexure load test was carried out on all panels. Obtained results were studied with predicted ultimate loads from ANSYS software and the theoretical extremes capacities of 0% and full-composite cases to evaluate the effects of changing components. Strength/weight ratio and degree of composite action were obtained to can judge the panels with effective parameter. It was found that adding carbon fiber strips has a high positive effect in degree of composite action. Steel bars shear connectors were the optimum shear connectors' type with high strength concrete. Carbon fiber strips and rods shear connectors were the best shear connectors' type with light high strength concrete. All properties of specimens enhanced with the decrease of the angle of shear connectors with both of steel and carbon fiber shear connectors. Angle of 45° is the optimum angle that resists the flexure load, obtaining high degree of composite action and high strength/weight ratio. It also obtained the highest percent of predicted ultimate loads from ANSYS software. Keywords Precast concrete sandwich panel • Lightweight units • Shear connector • Carbon fiber • Lightweight concrete • Strength/weight • Composite • Shear flow Abbreviations FCR Carbon fiber rods with diameter of 12 mm FCS Carbon fiber strips with cross section of (50 mm) × (1.2 mm) HD foam High density foam HSC High strength concrete LHSC Light high strength concrete

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of shear connectors on strength of structural sandwich panels

et al. 2020

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“…Many researches has been conducted recently on behavior of reinforced concrete in the application of many structure members like concrete beam without FRP (Mohammadhassani et al 2013, Mohammadhassani et al 2014a, Mohammadhassani et al 2014b, Mohammadhassani et al 2014c, Khorramian et al 2016, Khorami et al 2017b, Khorramian et al 2017, Mansouri et al 2017, Nasrollahi et al 2018, Nosrati et al 2018, Paknahad et al 2018, Sadeghipour Chahnasir et al 2018 and with FRP strengthening (Rahimi and Hutchinson 2001, Karimi et al 2011, Sinaei et al 2011, Ashour and Kara 2014, Moy 2018. From the recent researches on application of reinforced concrete in steel and composite beams, the non-strengthening beams' ultimate loads have Corresponding author, Ph.D. E-mail: phambinhgtvt@gmail.com been investigated (Kheyroddin 2008a, Shariati et al 2010, Shariati et al 2011a, Shariati et al 2011b, Shariati et al 2011c, Sinaei et al 2011, Shariati et al 2012a, Shariati et al 2012b, Shariati et al 2012c, Shariati et al 2012d, Shariati et al 2012e, Sinaei et al 2012, Mohammadhassani et al 2013, Mohammadhassani et al 2014a, Mohammadhassani et al 2014b, Mohammadhassani et al 2014c, Toghroli Ali et al 2014, Khorramian ...…”

Section: Introductionmentioning

confidence: 99%

Computational optimized finite element modelling of mechanical interaction of concrete with fiber reinforced polymer

Alipour¹,

Toghroli²,

Mu’azu³

et al. 2019

Preprint

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This paper presents a computational rational model to predict the ultimate and optimized load capacity of reinforced concrete (RC) beams strengthened by a combination of longitudinal and transverse fiber reinforced polymer (FRP) composite plates/sheets (flexure and shear strengthening system). Several experimental and analytical studies on the confinement effect and failure mechanisms of fiber reinforced polymer (FRP) wrapped columns have been conducted over recent years. Although typical axial members are large-scale square/ rectangular reinforced concrete (RC) columns in practice, the majority of such studies have concentrated on the behavior of small-scale circular concrete specimens. A high performance concrete, known as polymer concrete, made up of natural aggregates and an orthophthalic polyester binder, reinforced with non-metallic bars (glass reinforced polymer) has been studied. The material is described at micro and macro level, presenting the key physical and mechanical properties using different experimental techniques. Furthermore, a full description of non-metallic bars is presented to evaluate its structural expectancies, embedded in the polymer concrete matrix. In this paper, the mechanism of mechanical interaction of smooth and lugged FRP rods with concrete is presented. A general modeling and application of various elements are demonstrated. The contact parameters are defined and the procedures of calculation and evaluation of contact parameters are introduced. The method of calibration of the calculated parameters is presented. Finally, the numerical results are obtained for different bond parameters which show a good agreement with experimental results reported in literature

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“…The angle shear connectors failure under monotonic and low cyclic fatigue loading was discussed. Khorramian et al (2017) [6] conducted a push-out test to investigate the ultimate load capacity of tilted-shapes angle shear connectors behaviour under monotonic load. The angles between the steel beam and the angle shear connector leg were 11.2o and 135o with different angles' lengths and sizes.…”

Section: Introductionmentioning

confidence: 99%

“…The failure mode observed in all specimens was the concrete crushing splitting. Khorramian et al (2017) [11] investigated numerically the behavior of tilted angle shear connectors embedded in solid concrete slabs. Two different tilted angle connectors were used, titled angle with 112.5 and 135 degrees between the angle leg and steel beam flange.…”

Section: Introductionmentioning

confidence: 99%

Effect of Angle Shear Connectors on the Behavior of Composite Concrete Steel Flexural Members Under Negative Moment

Al-Khekany¹,

Al-Yassri²,

Al-Ramahee³

et al. 2018

IJET

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This research presents an experimental program to study the effect of using angle shear connectors instead of the headed stud on the flexural behavior of composite beams under negative bending moment (NBM). Both the angle and headed stud shear connectors used in this study have the same cross-sectional area. Five composite beams were casted and tested using three-point load configuration to ensure the NBM effect. Different parameters were included in this study such as the type of shear connector, bond interaction (partial and complete bond interaction) and arrangement of angle shear connectors. Two proposals method were suggested for angle setting in this study to investigate the structural behavior of the composite section. It has been found that, in the case of single angle shear connectors, the ultimate strength decreased by 4.12% compared with samples with the headed stud shear connectors. The direction of the angle setting has been shown to affect the flexural behavior of the composite section.

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Numerical analysis of tilted angle shear connectors in steel-concrete composite systems

Cited by 66 publications

References 0 publications

Effect of shear connectors on strength of structural sandwich panels

Effect of shear connectors on strength of structural sandwich panels

Computational optimized finite element modelling of mechanical interaction of concrete with fiber reinforced polymer

Effect of Angle Shear Connectors on the Behavior of Composite Concrete Steel Flexural Members Under Negative Moment

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