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<p>Many studies have been carried out for understanding the mechanism of failure of RC structural systems under varying temperature circumstances. Similarly, several methods have been developed for improving the fire resistance of concrete buildings, with respect to material selection and detailing aspects. The main aim of this investigation is to study the mechanical properties like compressive strength, modulus of elasticity and the behavior of reinforced concrete elements, and sub-assemblage elements under high temperature with loading conditions. Analytical investigations are carried out using standard finite element software package and the experiments by casting the required specimens. The high temperature heating elements are used for testing of RC elements like beam column and exterior beam column joint in a scale down model and possibility of using these findings to understand the tendency of failure under high temperature and loading conditions. In the exterior beam column joint has a beam deflection of 1.81&#xa0;mm that was attained at 625&#xa0;°C in 137&#xa0;min and 601&#xa0;°C in 119&#xa0;min by the experimental and analytical values, respectively. The load presence acts the major role in RC elements and joints to cause the failure under high temperature.</p>

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Behavior of reinforced concrete elements and sub-elements under thermo-mechanical loading in a critical zone

  • 期刊论文

  • 发表日期：

    2025年5月26日

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  • N. Parthasarathi,
  • M. Prakash,
  • K. S. Satyanarayanan

摘要

Many studies have been carried out for understanding the mechanism of failure of RC structural systems under varying temperature circumstances. Similarly, several methods have been developed for improving the fire resistance of concrete buildings, with respect to material selection and detailing aspects. The main aim of this investigation is to study the mechanical properties like compressive strength, modulus of elasticity and the behavior of reinforced concrete elements, and sub-assemblage elements under high temperature with loading conditions. Analytical investigations are carried out using standard finite element software package and the experiments by casting the required specimens. The high temperature heating elements are used for testing of RC elements like beam column and exterior beam column joint in a scale down model and possibility of using these findings to understand the tendency of failure under high temperature and loading conditions. In the exterior beam column joint has a beam deflection of 1.81 mm that was attained at 625 °C in 137 min and 601 °C in 119 min by the experimental and analytical values, respectively. The load presence acts the major role in RC elements and joints to cause the failure under high temperature.