Restrained/Unrestrained Construction
Restrained/Unrestrained Construction
(OP)
Does anyone know where to find the definition for restrained/unrestrained construction in the Florida Building Code.
Also what is the required cover for concrete walls as it relates to fire rating.
Also what is the required cover for concrete walls as it relates to fire rating.






RE: Restrained/Unrestrained Construction
RE: Restrained/Unrestrained Construction
RE: Restrained/Unrestrained Construction
Mike McCann
MMC Engineering
RE: Restrained/Unrestrained Construction
The best definition I've seen is in the UL fire ratings book.
RE: Restrained/Unrestrained Construction
thread507-164258: Help - Restrained vs Unrestrained construction
thread507-227858: Restrained Vs. Unrestrained
There is also a UL forum you could post in.
RE: Restrained/Unrestrained Construction
RE: Restrained/Unrestrained Construction
Their opinion is that end bays of flat slabs with no spandrel beams is considered as unrestrained because it is not possible to quantify them as restrained. The code reads that unless you can classify them as restrained, you will need to assign them as unrestrained.
For post tensioned slabs it means that you cover will not change from 3/4" to 1.5" on the end spans. This requirement is also presented in the Post tensioning Manual.
RE: Restrained/Unrestrained Construction
I have a hard copy but I will try to find a link.