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The article analyzes the results of calculating forces and displacements in a planar frame under static loading, taking into account the physical nonlinearity of reinforced concrete. A comparison of deformation theories for composite materials is presented, along with a linear calculation and an investigation of the results of a nonlinear calculation performed in the SCAD Office software package (version 23.1.1.1). Additionally, a frame calculation was carried out in accordance with the recommendations of DBN V.2.6–98:2009 [1], which considers the nonlinear behavior of reinforced concrete using reduction factors. Significant discrepancies were identified between the results obtained from physical nonlinearity theories and those from normative calculations. These deviations emphasize the need for further verification studies to increase the accuracy of calculations of the stress-strain state in reinforced concrete structures, conducting experiments with the combination of different types of reinforcing frames and reinforcement material. The obtained results will indicate the effect of the modulus of elasticity of reinforcing materials on the change in the stress-form condition of the outer layers of concrete.

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Calculation Accuracy Evaluation of Reinforced Concrete Frames Under Static Loading Using Deformation Models

  • 会议论文

  • 发表日期：

    2025年

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  • Ihor Petrenko,
  • Iryna Prybytko,
  • Timur Hanieiev,
  • Mykola Korzachenko

摘要

The article analyzes the results of calculating forces and displacements in a planar frame under static loading, taking into account the physical nonlinearity of reinforced concrete. A comparison of deformation theories for composite materials is presented, along with a linear calculation and an investigation of the results of a nonlinear calculation performed in the SCAD Office software package (version 23.1.1.1). Additionally, a frame calculation was carried out in accordance with the recommendations of DBN V.2.6–98:2009 [1], which considers the nonlinear behavior of reinforced concrete using reduction factors. Significant discrepancies were identified between the results obtained from physical nonlinearity theories and those from normative calculations. These deviations emphasize the need for further verification studies to increase the accuracy of calculations of the stress-strain state in reinforced concrete structures, conducting experiments with the combination of different types of reinforcing frames and reinforcement material. The obtained results will indicate the effect of the modulus of elasticity of reinforcing materials on the change in the stress-form condition of the outer layers of concrete.