Prediction of longitudinal shear resistance of steel-concrete composite slabs

Ahmed, Saddam M.; Avudaiappan, Siva; Sheet, Ikhlas S.; Flores, Erick I. Saavedra; Pina, Juan Carlos; Yanez, Sergio J.; Guzmán, Carlos Felipe

doi:10.1016/j.engstruct.2019.05.010

Cited by 23 publications

(12 citation statements)

References 12 publications

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“…The ductility ratio is defined as the ratio of the cu timate moment to the curvature at yield for the specimen failing in flex characterized by the deformation capacity of specimens after yielding or a pate energy. The author recommended P > 0.4 P0 for the earthquake regions [23][24][25][26] investigated the longitudinal behavior of composites with trape sheet. The deflection at the elastic limit is the deflection at which the beha from elastic to plastic.…”

Section: Ductility Ratiomentioning

confidence: 99%

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Experimental Investigation on Composite Deck Slab Made of Cold-Formed Profiled Steel Sheeting

Avudaiappan

Flores

Araya-Letelier

et al. 2021

Metals

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An experimental investigation is performed on various cold-formed profiled sheets to study the connection behavior of composite deck slab actions using bolted shear connectors. Various profiles like dovetailed (or) re-entrant profiles, rectangular profiles and trapezoidal profiles are used in the present investigation. This experimental investigation deals with the evaluation of various parameters such as the ultimate load carrying capacity versus deflection, load versus slip, ductility ratio, strain energy and modes of failure in composite slab specimens with varying profiles. From the test results the performance of dovetailed profiled composite slabs’ resistance is significantly higher than the other two profiled composite deck slabs.

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Section: Ductility Ratiomentioning

confidence: 99%

“…The author recommended P > 0.4 P 0 for the earthquake regions. Siva, A. et al [23][24][25][26] investigated the longitudinal behavior of composites with trapezoidal profile sheet. The deflection at the elastic limit is the deflection at which the behavior changes from elastic to plastic.…”

Section: Ductility Ratiomentioning

confidence: 99%

Experimental Investigation on Composite Deck Slab Made of Cold-Formed Profiled Steel Sheeting

Avudaiappan

Flores

Araya-Letelier

et al. 2021

Metals

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“…To calculate the maximum shear stress τ u , the shear span should be sufficient to ensure that the longitudinal shear failure would occur [8]. Later on, the simplified m-k curves have also been reviewed based on the experimental test results [9]. The predominant failure modes in composite deck slab are the flexure and shear at supports, while the interface layer, being the most susceptible to failure, failed during the testing due to shear bond.…”

Section: Introductionmentioning

confidence: 99%

Shear bond characteristics of steel concrete composite deck slab

2022

JCE

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Steel-concrete composite slabs with cold-formed, profiled steel deck sheets are popularly used in steel-framed buildings. In these slabs, the deck platform acts as a working platform during construction and also as tensile reinforcement under in-service load conditions. The shear bond capacity of the composite slab is evaluated in this study for two different profile steel deck sheets. Specifically, their composite behaviour is investigated by casting and testing twelve full-scale composite deck slab specimens using the two-point loading system. In addition, based on the shear span length and profile height, the structural performance of the composite deck slab is analysed in terms of load-displacement response, shear bond capacity, ductility index, and load-slip behaviour. The results show that the most common failure of all tested specimens occurs due to the longitudinal shear failure between the concrete and profile deck sheets. As the longitudinal shear is a complex phenomenon, empirical approaches are used to evaluate the shear bond mechanism between the concrete and profile deck. The verification and comparison of experimental test results are performed with conventional and simplified m-k models based on the profile deck depth. The validated results reveal an acceptable level of reliability for prediction of each profile height based on the m and k interaction values.

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“…They found that the strength, stiffness, flexural capacity, and load-carrying capacity of composite deck slabs increased when using the mechanical shear connectors. More details on the longitudinal shear behavior of composite deck slabs can be found elsewhere [21][22][23][24][25][26]. Recently, an experimental investigation on the connection behavior of composite decks by varying the types of cold-formed profiled sheets was carried out by Avudaiappan et al [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Behavior of Steel–Concrete Composite Decks with Different Shear Span-to-Depth Ratios

et al. 2021

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This paper presents the results of an experimental study on the mechanical behaviors of steel‒concrete composite decks with different shear span-to-depth ratios. Herein, four composite decks categorized into two types with shear span-to-depth ratios of 2.5 and 4.6 are designed for an experimental program. The decks then undergo the four-point bending tests until failure to investigate the structural responses, such as the load, displacement, crack mechanism, and failure mode. Conventional section analysis is used to derive the flexural strength of composite decks in comparison with the test results. Additionally, the ductility of the composite decks is assessed based on the displacement indices. The analysis results demonstrate that the stiffness and capacity of the composite deck increase with the decrease in the shear span length. However, the ductility of the composite slabs increases with the shear span length. The flexural strengths predicted by section analysis overestimate the actual test results. The shear span-to-depth ratio affects the crack mechanism of the composite decks.

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Prediction of longitudinal shear resistance of steel-concrete composite slabs

Cited by 23 publications

References 12 publications

Experimental Investigation on Composite Deck Slab Made of Cold-Formed Profiled Steel Sheeting

Experimental Investigation on Composite Deck Slab Made of Cold-Formed Profiled Steel Sheeting

Shear bond characteristics of steel concrete composite deck slab

Experimental Study on the Behavior of Steel–Concrete Composite Decks with Different Shear Span-to-Depth Ratios

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