Markmax33
Bronze Member
I was reading the building code today and trying to calculate the non-separated option for a building with multiple occupancies. The exception says, "H-2, H-3...shall be separated from all other occupancies in accordance with 508.4."
Which of the following are true:
1. This means that the non-separated use is calculated with the H-Occupancy floor area BUT the H-occupancy portions are separated.
2. This means that floors with H-occupancies cannot use non-separated use at all and must be calculated as separated. (This is what the code commentary book says!)
3. This means that the H-occupancies must be separated, but you the non-separated ratio is calculated upon the next most restrictive floor area and the ratio for the h-occupancy uses the h floor area.
A-2 occupancy B occupancy F-2 occupancy H-2 occupancy M occupancy
Aa = 13,395 ft2 Aa = 32,430 ft2 Aa = 32,430 ft2 Aa = 9,870 ft2 Aa = 17,625 ft2
Floor areas:
Floor A-2 Floor Area A-2 Ratio B Floor Area B Ratio F-2 Floor Area F-2 Ratio H-2 Floor Area H-2 Ratio M Floor Area M Ratio
3 31,321 ft2 2.338 3,210 ft2 0.24 3,210 ft2 0.24 8,000 ft2 0.597 1,532 ft2 0.114
2 1,351 ft2 0.101 35,135 ft2 2.623 3,513 ft2 0.262 6,555 ft2 0.489 35,135 ft2 2.623
1 3,456 ft2 0.258 80,000 ft2 5.972 531 ft2 0.04 533 ft2 0.04 1,531 ft2 0.114
Thanks! - Mark
Which of the following are true:
1. This means that the non-separated use is calculated with the H-Occupancy floor area BUT the H-occupancy portions are separated.
2. This means that floors with H-occupancies cannot use non-separated use at all and must be calculated as separated. (This is what the code commentary book says!)
3. This means that the H-occupancies must be separated, but you the non-separated ratio is calculated upon the next most restrictive floor area and the ratio for the h-occupancy uses the h floor area.
A-2 occupancy B occupancy F-2 occupancy H-2 occupancy M occupancy
Aa = 13,395 ft2 Aa = 32,430 ft2 Aa = 32,430 ft2 Aa = 9,870 ft2 Aa = 17,625 ft2
Floor areas:
Floor A-2 Floor Area A-2 Ratio B Floor Area B Ratio F-2 Floor Area F-2 Ratio H-2 Floor Area H-2 Ratio M Floor Area M Ratio
3 31,321 ft2 2.338 3,210 ft2 0.24 3,210 ft2 0.24 8,000 ft2 0.597 1,532 ft2 0.114
2 1,351 ft2 0.101 35,135 ft2 2.623 3,513 ft2 0.262 6,555 ft2 0.489 35,135 ft2 2.623
1 3,456 ft2 0.258 80,000 ft2 5.972 531 ft2 0.04 533 ft2 0.04 1,531 ft2 0.114
Thanks! - Mark