nealderidder
Sawhorse
I've got a two-story building with a very tall interstitial space between 1st and 2nd. Basically it's 20' 1st floor to 2nd floor and there is a catwalk hanging from the 2nd floor structure. The bottom of the catwalk is around 11' AFF and the 1st floor ceilings are at 10' (Suspend ACT). The building footprint is roughly 200' x 240'.
The catwalk is pretty extensive and has a trapeze on the side of it for conduit etc. I'm not sure how useful it is since you can only service the ceiling below within an arms reach of the catwalk. There are a couple of areas with bus bars that are accessed only from the catwalk.
We're adding some control areas on the first floor so we need fire barriers up to the 2nd floor deck. This will interrupt the catwalk in several areas. The catwalk is shown hatched on the attached and you'll see some "gaps" which is where the fire barriers will be. The places where the catwalk ends are at mechanical mezzanines.
So the question is... What are the requirements for egress from this catwalk? I remember there being a section in the IBC one time that dealt with catwalks but it seems to have disappeared and the only mention now pertains to theater catwalks and accessible means of egress. I believe two exits were not required in that old section.
When do I need two exits? Is there a max. exit access distance? I'm on 2016 CBC.
Any input would be appreciated!
The catwalk is pretty extensive and has a trapeze on the side of it for conduit etc. I'm not sure how useful it is since you can only service the ceiling below within an arms reach of the catwalk. There are a couple of areas with bus bars that are accessed only from the catwalk.
We're adding some control areas on the first floor so we need fire barriers up to the 2nd floor deck. This will interrupt the catwalk in several areas. The catwalk is shown hatched on the attached and you'll see some "gaps" which is where the fire barriers will be. The places where the catwalk ends are at mechanical mezzanines.
So the question is... What are the requirements for egress from this catwalk? I remember there being a section in the IBC one time that dealt with catwalks but it seems to have disappeared and the only mention now pertains to theater catwalks and accessible means of egress. I believe two exits were not required in that old section.
When do I need two exits? Is there a max. exit access distance? I'm on 2016 CBC.
Any input would be appreciated!