Interstate 580 overpass tanker fire as illustration of possible 9/11 fire effects

[SR1419]

My apologies if this is off topic as it does not pertain to the SS Noronic...but it does serve as an illustration of the possible 9/11 fire effects:

The crash of a tanker and subsequent collapse of highway 580 in Oakland, CA in 2007

The subsequent fire caused the collapse of portions of the Interstate 580 overpass onto the remains of the tractor-trailer in less than 20 minutes, due to a reduction of strength in the structural steel exposed to the fire.

http://www.wmsym.org/archives/2012/papers/12476.pdf

 

[FireOfficer1822]

My apologies if this is off topic as it does not pertain to the SS Noronic...but it does serve as an illustration of the possible 9/11 fire effects:

The crash of a tanker and subsequent collapse of highway 580 in Oakland, CA in 2007

The subsequent fire caused the collapse of portions of the Interstate 580 overpass onto the remains of the tractor-trailer in less than 20 minutes, due to a reduction of strength in the structural steel exposed to the fire.

http://www.wmsym.org/archives/2012/papers/12476.pdf

I think this one deserves its own thread as well (not for being OT but for being that informative)

 

[Cairenn]

From the link

Review of the documentation compiled by Caltrans during the demolition and repair of the
overpass, as well as examination of the I-580 overpass girders after the demolition, revealed no
indications that any of the steel girders were exposed to temperatures where melting would be
expected. Other items that aided in determining the fire temperature included melting of alloys
used on the tanker truck, spalling of concrete, damage to paint, and solid-state phase
transformations in the steel girders. Spalling of the concrete was observed on the surface of
the I-880 roadbed, the physical extent of which was measured by Caltrans. Damage to the
paint of the steel girders also served as a useful indication of temperature especially with the
extensive photographic documentation available from Caltrans. NRC and SwRI
®
staff collected
and analyzed material samples from the steel girders and the tanker truck to estimate exposure
temperatures[ex/]