Behavior of Curved Steel-Concrete Composite Beams Under Monotonic Load

Abstract

The paper develops a numerical investigation on the behavior of steel-concrete composite beam curved in plan to examine the effect of the various parameters. Three-dimensional finite element analysis (FEA) is employed using a commercial software, ABAQUS. The geometric and material nonlinearities are utilized to simulate the composite beam under a monotonic load. The FEA efficiency has been proved by comparing the numerical results with experimental tests obtained from previous literature, including load-deflection curves, ultimate load, ultimate and failure deflection, and cracks propagation. The validated models are used to assess some of the key parameters such the beam span/radius ratio, web stiffeners, partial interaction, concrete compressive strength, and steel beam yield stress. From the obtained results, it is noticed that the span/radius of curvature ratio influences the loading capacity, the beam yielding (i.e. the beam yield at an early stage) when the span/radius ratio increases and inelastic behavior developed early of the beam due to the torsional effect. The presence of web stiffeners with different locations in the curve composite beam affected the shear strength. The web twisting and vertical separation at the beam mid-span are observed to decrease as the number of the stiffeners increase due to the decrease in the beam torsion incorporating with transferring the failure to the concrete slab. Furthermore, the partial interaction and steel beam yield stress developed in this study appear to have a remarkable effect on beam capacity.

Numerical Simulation of Stresses in Functionally Graded HCS-MgO Cylinder Using Iterative Technique and Finite Element Method

“…Using the homotopy perturbation method, an FGM annular rotating disk is investigated for elasticity and plasticity analysis under plane stress conditions where the thickness of the disk and densities are varying in the radial direction [11]. Applying 3D finite element analysis by using commercial software ABAQUS, the influence of material parameters on the response of composite steel-concrete beam is studied by Jaafer and Kareem [12]. An axisymmetric elastic stress analysis is performed for a functionally graded spinning disk where thickness and material properties of the rotary disk vary along the power law function, and the numerical solution is obtained by applying the finite difference method under clamped-clamped, clamped-free, and free-free boundary conditions [13].…”

Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading

“…The nonlinear analysis on RC beam under combined effects revealed spalling and global flexural damages increased with decreasing beam depth and increasing span length. Other researchers [ 6 , 7 , 8 , 9 ] have studied a dynamic response of SCC beams based on varying applied loading system. Considered loading systems includes: monotonic, shearing, and vertical point loads.…”

“…Numerical study on behavior of composite steel-concrete beam curved in plan loaded with monotonic load was evaluated by Jaafer and Saba [ 7 ]. The authors developed FE model by using a high-fidelity physics-based FEA program ABAQUS and the model was validated with experimental data in terms of its respective load-deflection curve, ultimate load, ultimate and yield deflection, and crack patterns.…”

“…The authors developed FE model by using a high-fidelity physics-based FEA program ABAQUS and the model was validated with experimental data in terms of its respective load-deflection curve, ultimate load, ultimate and yield deflection, and crack patterns. Jaafer and Saba [ 7 ] also conducted a parametric study to examine effects of beam span/radius ratio, different web stiffeners, partial interaction, concrete and steel material strengths. The authors showed span/radius ratio significantly influences curvature, web stiffeners affect propagation of shear stresses, and steel beam material strength immensely affects beam capacity.…”