Fire-resistant capacity of RC structures considering time-dependent creep strain at elevated temperature

摘要: This paper introduces a numerical evaluation of the fire-resistant capacity reinforced concrete structures. On basis time-dependent temperature distribution across section determined from transient heat transfer analysis considering conduction, convection and radiation, layered fibre method is adopted to take into account non-linear material properties depending on temperature. Furthermore, non-mechanical strains steel such as thermal strain, strain creep which increase with elevated variation induced by fire, are implemented formulation. Numerical results for structural members compared experimental data obtained standard fire tests investigate influence at Beyond member level, frame structures exposed also analysed evaluate statically indeterminate practical conditions....