[fjsolwmv]

Steel and concrete buildings need a huge amount of time to get fires spread enough and hot enough to collapse, except in freak catastrophes like jet plane crashes.

[wahern]

It's a well known and not uncommon failure mode:

https://youtu.be/8XMTALBYRNA?t=40

https://youtu.be/LB9wwTmrMYA?t=15

Fireproofing steel beams has been practiced since the 1950s. (https://www.asbestos.com/products/fireproofing-fire-preventi...)