scholarly journals Element-based effective width for deflection calculation of steel-concrete composite beams

2016 ◽  
Vol 121 ◽  
pp. 163-172 ◽  
Author(s):  
Huang Yuan ◽  
Huang Deng ◽  
Yang Yang ◽  
Yi Weijian ◽  
Zhu Zhenggeng
Keyword(s):  
Composite Beams ◽  
Effective Width

Effective Width of the Slab in Composite Beams with Nonlinear Shear Connection

2016 ◽  
Vol 142 (4) ◽  
pp. 04016001 ◽  
Author(s):  
Laura Galuppi ◽  
Gianni Royer-Carfagni
Keyword(s):  
Composite Beams ◽  
Effective Width ◽  
Shear Connection ◽  
Nonlinear Shear

Experimental evaluation of effective width in steel–concrete composite beams

2004 ◽  
Vol 60 (2) ◽  
pp. 199-220 ◽  
Author(s):  
C. Amadio ◽  
C. Fedrigo ◽  
M. Fragiacomo ◽  
L. Macorini
Keyword(s):  
Experimental Evaluation ◽  
Composite Beams ◽  
Effective Width

Long-term analysis of steel–concrete composite beams: FE modelling for effective width evaluation

2006 ◽  
Vol 28 (8) ◽  
pp. 1110-1121 ◽  
Author(s):  
L. Macorini ◽  
M. Fragiacomo ◽  
C. Amadio ◽  
B.A. Izzuddin
Keyword(s):  
Composite Beams ◽  
Effective Width ◽  
Fe Modelling ◽  
Term Analysis

Effective width evaluation for steel–concrete composite beams

2002 ◽  
Vol 58 (3) ◽  
pp. 373-388 ◽  
Author(s):  
C. Amadio ◽  
M. Fragiacomo
Keyword(s):  
Composite Beams ◽  
Effective Width

scholarly journals Numerical analysis of the effect of partial interaction in the evaluation of the effective width of composite beams

2018 ◽  
Vol 11 (4) ◽  
pp. 757-778
Author(s):  
A. R. SILVA ◽  
L. E. S. DIAS
Keyword(s):  
Composite Beam ◽  
Concrete Slab ◽  
Composite Beams ◽  
Interface Element ◽  
Steel Beam ◽  
Real Problem ◽  
Effective Width ◽  
Plate Element ◽  
Technical Standards ◽  
Partial Interaction

Abstract Most of the engineering problems involving structural elements of steel-concrete composite beam type are approximations of the structural problem involving concrete plates connected by connectors to steel beams. Technical standards allow the replacement of the concrete plate element by a beam element by adopting a reduction in the width of the plate element known as effective width. The effective width is obtained, in most technical norms, taking into account only the parameters of beam span length and distance between adjacent beams. Numerical and experimental works found in the literature show that this effective width depends on several other parameters, such as the width and thickness of the concrete slab, and the type of loading. The objective of this work is to verify the influence of the partial interaction in the evaluation of the effective width of composite beams formed by a concrete slab connected to a steel beam with deformable connection, being used in numerical simulation three types of finite elements: a plate element for nonlinear analysis of the concrete slab; a bar element for non-linear analysis of beams with cross-section defined by a polygon; and an interface element which connects the plate and beam elements, simulating the deformation effect of the shear connectors. In the studied examples, it was found that the reduction of the shear connection stiffness at the interface between the concrete slab and the steel beam leads to a decrease in the shear lag effect and, consequently, makes the effective width of the concrete slab closer to the its real width. In another example, curves are constructed to define the effective width of a composite beam with medium stiffness. Considering maximum stresses and maximum displacements, these curves are obtained by forcing the equivalence of the approximate model with the model closest to the real problem.

scholarly journals NUMERICAL ANALYSIS AND EVALUATION OF EFFECTIVE SLAB WIDTH OF COMPOSITE CONTINUOUS BEAMS WITH SEMI-RIGID JOINT

2021 ◽  
Keyword(s):  
Numerical Models ◽  
Three Dimensional ◽  
Joint Stiffness ◽  
Element Model ◽  
Composite Beams ◽  
Effective Width ◽  
Factors Affecting ◽  
Slab Width ◽  
Shear Connection ◽  
Composite Joint

The characterization of the structural behavior of composite beams is directly affected by the determination of the effective slab width. Various codes propose their own definitions of the effective width based on the beam span and the slab width parameters. However, the evaluation of the effective width may be influenced by other parameters. The aim of this work is to determine the most important factors affecting effective width for continuous composite beams with semi-rigid joints using numerical simulations. A three-dimensional finite element model of a composite continuous beam using explicit-solver available in ABAQUS is developed. The proposed model is validated through comparisons to available experimental results. A modified model is proposed based on the so-validated model to study the influence of the composite beam-column joint stiffness on the effective width. Then, both numerical models are used to perform an extensive parametric study to investigate the influence of various parameters on the estimation of the effective slab width. The influence of slab width, the shear connection degree, and composite joint stiffness are particularly analyzed to find out the most important parameters influencing the effective width so that simplified equations for the calculation of the effective slab width are proposed.

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