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<p>The paper presents the formulation of a shell element, together with appropriate constitutive models, for the predictive simulation of non-planar RC walls. The formulation is used in blind prediction analyses of U-shaped walls recently tested at UCLouvain, in Belgium and the National Laboratory of Civil Engineering, in Portugal. The first blind prediction addressed walls UW1 and UW2, which were subjected to cyclic flexure and torsion. The second one addressed wall UWS1, which was tested dynamically on a shake table. The author’s modelling approach as well as comparisons between experimental and numerical results are presented. Overall good agreement was obtained for UW1 and UW2 specimens in terms of maximum load, hysteretic pinching and post-peak response. For UWS1 both prediction and postdiction results are presented. Comparison with displacements, torsional rotation, maximum inertial forces, tensile strains and residual displacements is provided. Finally, sensitivity analysis of some modelling parameters affecting the response of wall UWS1 is presented.</p>

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Application of a layered shell element formulation to blind prediction simulations of U-shaped RC walls

  • 期刊论文

  • 发表日期：

    2025年7月17日

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  • Alexander Kagermanov

摘要

The paper presents the formulation of a shell element, together with appropriate constitutive models, for the predictive simulation of non-planar RC walls. The formulation is used in blind prediction analyses of U-shaped walls recently tested at UCLouvain, in Belgium and the National Laboratory of Civil Engineering, in Portugal. The first blind prediction addressed walls UW1 and UW2, which were subjected to cyclic flexure and torsion. The second one addressed wall UWS1, which was tested dynamically on a shake table. The author’s modelling approach as well as comparisons between experimental and numerical results are presented. Overall good agreement was obtained for UW1 and UW2 specimens in terms of maximum load, hysteretic pinching and post-peak response. For UWS1 both prediction and postdiction results are presented. Comparison with displacements, torsional rotation, maximum inertial forces, tensile strains and residual displacements is provided. Finally, sensitivity analysis of some modelling parameters affecting the response of wall UWS1 is presented.