They are easy to use but often unrealistic because they never cool down. :
: These account for the size of the windows, the wall material, and how much fuel (desks, paper) is actually in the room. Fire design of steel structures: Eurocode 1: ac...
The "long story" of fire design for steel structures within the Eurocode framework is a journey from simple, "one-size-fits-all" fire tests to sophisticated engineering that mimics real-world physics. They are easy to use but often unrealistic
: Using Computer Fluid Dynamics (CFD) to "see" exactly how smoke and heat move. the wall material
Simple time-temperature curves like the or Hydrocarbon curve .
: How the loads (furniture, people, snow) change when the building is burning.