baseline design
Member
- Joined
- Feb 3, 2011
- Messages
- 2
First post, thanks in advance for any help. I'm an architect and this is a project being built in an area with no building official. The plans will be submitted to the WY state fire marshall for an Electrical and Life Safety review, but it's not really an office with which I can review plans in an informal capacity.
Project is 2-story 20,000 SF V-B sprinklered office building with large (over 750 SF) conference areas that will be used by the public (if not for this caveat, the WY FM review wouldn't even be necessary, I know, it's kinda shocking)
My question is can I treat the building as A-3 and use only 100 gross calculation for the offices? (have both enclosed and open) This would mean not including corridors and ancillary spaces in occ. load count. Conference areas comprise 17% of the floor area, adding break out space/lobby (using 5 SF/pp occ load for these areas, is that right?) bumps total to 24% of floor area. Therefore, I'm mixed not accessory.
After answering that, how should I calculate fixtures? B occ. class says 100 gross implying inclusion of toilet room space. A-3 says it's net and does not count but yet I am providing greater quantity of fixtures due to denser(?) load of A-3. If I am calculating fixture count based on both occupancies shouldn't the allocation (or consideration) of load be split as well? Do I somehow split the toilet room? If I'm splitting the room, do I split the corridor that is accessing the toilets so that half the travel path is considered in the gross B count and half is not as part of A-3 net count?
Basically, I'm wondering how to make the split between occupancies in a non-separated sprinklered building with conference functions sprinkled throughout the far corners of the plan, which is otherwise office.
I may not be phrasing this in the right terms, let me know if I can clarify. Also, I've read posts here that suggest not counting spaces that theoretically cannot be occupied simultaneously, toilet rooms, file rooms, etc. While this makes common sense, it seems to run counter to the gross floor area definition.
Thanks for any help. Particular code sections that address this and can be referenced would be appreciated. WY State Fire Marshall reviews under 2006 IBC. The local jurisdiction has already issued a building permit based on a site plan NTS on an 8.5x11 sheet.
Cheers
Project is 2-story 20,000 SF V-B sprinklered office building with large (over 750 SF) conference areas that will be used by the public (if not for this caveat, the WY FM review wouldn't even be necessary, I know, it's kinda shocking)
My question is can I treat the building as A-3 and use only 100 gross calculation for the offices? (have both enclosed and open) This would mean not including corridors and ancillary spaces in occ. load count. Conference areas comprise 17% of the floor area, adding break out space/lobby (using 5 SF/pp occ load for these areas, is that right?) bumps total to 24% of floor area. Therefore, I'm mixed not accessory.
After answering that, how should I calculate fixtures? B occ. class says 100 gross implying inclusion of toilet room space. A-3 says it's net and does not count but yet I am providing greater quantity of fixtures due to denser(?) load of A-3. If I am calculating fixture count based on both occupancies shouldn't the allocation (or consideration) of load be split as well? Do I somehow split the toilet room? If I'm splitting the room, do I split the corridor that is accessing the toilets so that half the travel path is considered in the gross B count and half is not as part of A-3 net count?
Basically, I'm wondering how to make the split between occupancies in a non-separated sprinklered building with conference functions sprinkled throughout the far corners of the plan, which is otherwise office.
I may not be phrasing this in the right terms, let me know if I can clarify. Also, I've read posts here that suggest not counting spaces that theoretically cannot be occupied simultaneously, toilet rooms, file rooms, etc. While this makes common sense, it seems to run counter to the gross floor area definition.
Thanks for any help. Particular code sections that address this and can be referenced would be appreciated. WY State Fire Marshall reviews under 2006 IBC. The local jurisdiction has already issued a building permit based on a site plan NTS on an 8.5x11 sheet.
Cheers
