Having done a great deal of structural fire restoration, yes, I've had to replace steel beams and only a few wood joists where the fire was hottest. The steel beam only needs to be compromised in a very small section to ruin it's integrity for the entire piece
It seems counterintuitive until knowing the science. Being a fire service instructor and having gone through the basic fire classes when first getting into the service, combined with a mech engineering background, it’s critical that FFs know the science regarding steel beam construction.
This is one of the reasons strip malls are so dangerous during fires. The fabricated steel trusses fail at surprisingly low fire intensities.
This meme is stupid and works against your credibility. Does steel have to melt to get weak? At what temperature does steel degrade below spec?
Steel begins to lose structural integrity around 1000 deg.
Having done a great deal of structural fire restoration, yes, I've had to replace steel beams and only a few wood joists where the fire was hottest. The steel beam only needs to be compromised in a very small section to ruin it's integrity for the entire piece
It seems counterintuitive until knowing the science. Being a fire service instructor and having gone through the basic fire classes when first getting into the service, combined with a mech engineering background, it’s critical that FFs know the science regarding steel beam construction.
This is one of the reasons strip malls are so dangerous during fires. The fabricated steel trusses fail at surprisingly low fire intensities.
Thanks for the added info.