Wonder who will get the contracts to perform these "Key Recommendations" from NIST??? After all many thousands of skyscrapers worldwide will
require retrofits...if you believe that an office fire will completely collapse a steel framed building to the ground...
From Nist:
Key Recommendation
Building owners, operators and
designers should evaluate fire
performance of structural systems,
especially
● Long-span floor systems;
● Connections not designed for thermal
effects
● Asymmetric floor framing
● Composite floor systems
Possible Options for Developing Retrofits
If thermal effects concerns are
identified in a building:
● Strengthen connections
● Strengthen floor framing
● Increase structural redundancy
● Add additional fireproofing in vulnerable
areas






