Answer:
In the program, you can enter a final temperature of steel. This function was implemented, for example, to use the results of real fire events or fire check locations and to perform designs with a more accurate temperature, since the temperature usually rises in several phases and is thus more favorable for the design.
The design at the temperature level shows that the highest temperature occurring in the structural component is lower than the critical steel temperature. The critical steel temperature is the temperature at which the component resistance is just as great as the loading due to mechanical loads.
This is not the ULS design, as no stability analyses are usually performed. Therefore, it is possible to use this method for the preliminary design of a structural component by calculating the critical temperature using the utilization ratio for the moment loading, for example. We do not offer this method directly. However, it is possible to determine the critical temperature of the component iteratively by specifying the temperature. However, the stability analysis should be taken into account in this case. The determined critical temperature can, however, be smaller than that of the formulas in the Eurocode, because, as already mentioned, the stability analysis is usually not taken into account.
