Geometrically nonlinear inelastic analysis of steel–concrete composite beams with partial interaction using a higher-order beam theory

2018 ◽  
Vol 100 ◽  
pp. 34-47 ◽  
Author(s):  
Md. Alhaz Uddin ◽  
Abdul Hamid Sheikh ◽  
David Brown ◽  
Terry Bennett ◽  
Brian Uy
Keyword(s):  
Beam Theory ◽  
Composite Beams ◽  
Higher Order ◽  
Geometrically Nonlinear ◽  
Inelastic Analysis ◽  
Partial Interaction

Generalised Beam Theory for composite beams with longitudinal and transverse partial interaction

2016 ◽  
Vol 22 (10) ◽  
pp. 2011-2039 ◽  
Author(s):  
Gerard Taig ◽  
Gianluca Ranzi
Keyword(s):  
Structural Response ◽  
Beam Theory ◽  
Element Model ◽  
Composite Beams ◽  
Cross Sectional ◽  
Shear Connections ◽  
Dynamic Analyses ◽  
Partial Interaction ◽  
Deformation Modes ◽  
Generalised Beam Theory

This paper presents a Generalised Beam Theory formulation to study the partial interaction behaviour of two-layered prismatic steel–concrete composite beams. The novelty of the proposed approach is in its capacity to handle the deformability of the shear connections at the interface between the slab and steel beam in both the longitudinal and transverse directions in the evaluation of the deformation modes. This method falls within a category of cross-sectional analyses available in the literature for which a suitable set of deformation modes, including conventional, extension and shear, is determined from dynamic analyses of discrete planar frame models representing the cross-section. In this context, the shear connections are modelled using shear deformable spring elements. As a result, the in-plane partial shear interaction behaviour is accounted for in the planar dynamic analysis during the evaluation of the conventional and extension modes, while the longitudinal partial interaction behaviour associated with the shear modes is included in the out-of-plane dynamic analyses. In the case of the conventional modes, the longitudinal slip is accounted for in the post-processing stage where the warping displacements are determined. A numerical example of a composite box girder beam is presented and its structural response investigated for different levels of shear connection stiffness in both the longitudinal and transverse directions. The accuracy of the numerical results is validated against those obtained with a shell finite element model implemented in ABAQUS/Standard software.

Analysis of composite beams with partial shear interactions using a higher order beam theory

2012 ◽  
Vol 36 ◽  
pp. 283-291 ◽  
Author(s):  
A. Chakrabarti ◽  
A.H. Sheikh ◽  
M. Griffith ◽  
D.J. Oehlers
Keyword(s):  
Beam Theory ◽  
Composite Beams ◽  
Higher Order

scholarly journals Flexural vibrations of geometrically nonlinear composite beams with interlayer slip

2019 ◽  
Vol 231 (1) ◽  
pp. 251-271
Author(s):  
Christoph Adam ◽  
Thomas Furtmüller
Keyword(s):  
Structural Model ◽  
Axial Strain ◽  
Beam Theory ◽  
Response Characteristic ◽  
Composite Beams ◽  
Geometrically Nonlinear ◽  
Layer Composite ◽  
Nonlinear Composite ◽  
Interlayer Slip ◽  
Dynamic Response Characteristic

Abstract This paper addresses moderately large vibrations of immovably supported three-layer composite beams. The layers of these structural members are elastically bonded, and as such, subjected to interlayer slip when excited. To capture the moderately large response, in the structural model a nonlinear axial strain-displacement relation is implemented. The Euler–Bernoulli kinematic assumptions are applied layerwise, and a linear interlaminar slip law is utilized. Accuracy and efficiency of the resulting nonlinear beam theory is validated by selective comparative plane stress finite element calculations. The outcomes of application examples demonstrate the grave effect of interlayer slip on the geometrically nonlinear dynamic response characteristic of layered beams.

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