The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors

Due to the shear strain in the plane of the slab, the parts of the slab remote from the steel beam lag behind the part of the slab located in its proximity. This shear lag effect causes a non-uniform stress distribution across the width of the slab. As a result, several standards have introduced the...

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Main Authors: Alaa Hasan, Moaid Subh, George Wardeh
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Applied Mechanics
Subjects:
Online Access:https://www.mdpi.com/2673-3161/5/1/11
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author Alaa Hasan
Moaid Subh
George Wardeh
author_facet Alaa Hasan
Moaid Subh
George Wardeh
author_sort Alaa Hasan
collection DOAJ
description Due to the shear strain in the plane of the slab, the parts of the slab remote from the steel beam lag behind the part of the slab located in its proximity. This shear lag effect causes a non-uniform stress distribution across the width of the slab. As a result, several standards have introduced the concept of an effective flange width to simplify the analysis of stress distribution across the width of composite beams. Both the computed ultimate moment and serviceability limit states are directly impacted by the effective width. The effect of using a large number of contact points as shear connectors on the effective width of a steel beam flange has not been investigated. A three-dimensional finite element analysis is carried out in this paper. The ABAQUS software (version 6.14) is used for this purpose, where several variables are considered, including the surface area connecting the steel beam and concrete slab, the transverse space, and the number of shear connectors. It was discovered that the number of shear connectors on the steel beam flange has a major impact on the effective width. The many connectors work together to provide a shear surface that improves the effective width by lowering the value of the shear lag.
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spelling doaj.art-5b0ead6eb89a47fa9daa45b431ca565d2024-03-27T13:18:54ZengMDPI AGApplied Mechanics2673-31612024-03-015116317910.3390/applmech5010011The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear ConnectorsAlaa Hasan0Moaid Subh1George Wardeh2Faculty of Civil Engineering, Damascus University, Damascus P.O. Box 30621, SyriaFaculty of Civil Engineering, Damascus University, Damascus P.O. Box 30621, SyriaL2MGC—Civil Engineering Mechanics and Materials Laboratory, CY Cergy-Paris University, 95031 Neuville-sur-Oise, FranceDue to the shear strain in the plane of the slab, the parts of the slab remote from the steel beam lag behind the part of the slab located in its proximity. This shear lag effect causes a non-uniform stress distribution across the width of the slab. As a result, several standards have introduced the concept of an effective flange width to simplify the analysis of stress distribution across the width of composite beams. Both the computed ultimate moment and serviceability limit states are directly impacted by the effective width. The effect of using a large number of contact points as shear connectors on the effective width of a steel beam flange has not been investigated. A three-dimensional finite element analysis is carried out in this paper. The ABAQUS software (version 6.14) is used for this purpose, where several variables are considered, including the surface area connecting the steel beam and concrete slab, the transverse space, and the number of shear connectors. It was discovered that the number of shear connectors on the steel beam flange has a major impact on the effective width. The many connectors work together to provide a shear surface that improves the effective width by lowering the value of the shear lag.https://www.mdpi.com/2673-3161/5/1/11shear lagcomposite beamshear connectorsnonlinear analysiseffective width
spellingShingle Alaa Hasan
Moaid Subh
George Wardeh
The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors
Applied Mechanics
shear lag
composite beam
shear connectors
nonlinear analysis
effective width
title The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors
title_full The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors
title_fullStr The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors
title_full_unstemmed The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors
title_short The Concrete Effective Width of a Composite I Girder with Numerous Contact Points as Shear Connectors
title_sort concrete effective width of a composite i girder with numerous contact points as shear connectors
topic shear lag
composite beam
shear connectors
nonlinear analysis
effective width
url https://www.mdpi.com/2673-3161/5/1/11
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