چكيده لاتين :
In any design of steel structures to resist fire, it is essential to know the temperature of the
steel. A simple step-by-step calculation technique is illustrated to determine the temperature
of non-insulated and insulated AISC rolled steel sections exposed to a standard fire. The
time-temperature responses of the insulated rolled steel sections has been determined for
varying thicknesses of two insulating materials viz. concrete and cement plaster. The rolled
steel section has been idealized as a lumped mass of steel having a uniform temperature.
The ISO 834 specified time-temperature curve has been used as an input in the analysis. The
proposed procedure is a useful tool for predicting temperatures of non-insulated and
insulated simple rolled steel sections in standard fire-resistance tests and also helps to
illustrate the efficacy of the type and the thickness of the insulating material on the elevation
of temperature in the steel sections. The results of this investigation can be used to
determine the fire-resistance ratings in the temperature domain for simple steel members.
