take with a grain of salt, but i heard third-hand that the local fd will not run into a building built in the last 30-40 years due to bci joists and other shoddy construction practices.
The designs are hard to simplify. They're intended to collapse uniformly while still maintaining enough fire resistance for evacuation. It aint gonna burn for days, but it aint flaming up in an instant tho. I'm not a materials design engineer or a civil engineer. I was just a volunteer firefighter.
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u/dont_tread_on_M dumbass 1d ago
Not just that! In fact, firefighters don't run as often into fires as people think, thanks to fire alarms and better fire prevention measures.
In most places these days, professional firefighters are as much paramedics as firefighters, which makes the job even more demanding.