3-hour horizontal assembly
3-hour horizontal assembly
(OP)
I have a project that requires a 3-hour horizontal assembly between the 1st and 2nd level and the 1st level is type IA construction. I have assumed that to meet this requirement I would need to design the floor framing system with the primary framing members as 3 hour rated and the secondary members would be 2-hour rated as listed in IBC Table 601 type IA.
The architect of record is insisting that a "3-hour Horizontal Assembly" must have all elements with a 3 hour rating.
Do I need to provide 3-hour rated concrete joists in addition to the 3-hour girders and columns of the primary framing system and slab in order to meet this requirement?
The architect of record is insisting that a "3-hour Horizontal Assembly" must have all elements with a 3 hour rating.
Do I need to provide 3-hour rated concrete joists in addition to the 3-hour girders and columns of the primary framing system and slab in order to meet this requirement?





RE: 3-hour horizontal assembly
“Faith is taking the first step even when you don’t see the whole staircase.” MLK
RE: 3-hour horizontal assembly
“Faith is taking the first step even when you don’t see the whole staircase.” MLK
RE: 3-hour horizontal assembly
The issue is with convincing the Architect which I have been successful in. It has now been taken to the AHJ but given the documentation I supplied I am not expecting a challenge.