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•Overall projectOverall project•Individual programmed spacesIndividual programmed spaces
Chapter 2Chapter 2Building OccupancyBuilding Occupancy
Building Building ClassificationsClassifications
Assembly (A-1 to 5)Business (B)
Education (E)Factory/Industrial
(F)Hazardous (H-1 to
5)Institutional (I-1 to
4)Mercantile (M)
Residential (R-1 to 4)
Storage (S-1 to 2)Utility/Misc (U)
Mixed useMixed use
Guess the occupancyGuess the occupancyHalle library
Art CenterDormitory
A houseA hospital
CVSStarbucks
College HallThe Academic Center
Home DepotThe North Shore Mall
Jiffy LubeThe Callahan Center
The LodgeThe Post Center
•Individual spaces within a Individual spaces within a projectproject•Used to determine occupant Used to determine occupant loadload•Plan diagramPlan diagram
Specific OccupancySpecific Occupancy
Area / Allowance = # Occ.Area / Allowance = # Occ.
Gross area
Net area
Sample Sample calculationcalculation
Posted Posted Occupant Occupant LoadLoad
Calculating Occupant Calculating Occupant LoadLoad1.1. Use chart in code to identify Use chart in code to identify Specific Occupancy Specific Occupancy
Areas Areas (in 781 CMR Ch. 10)(in 781 CMR Ch. 10)
2.2. Create/import Create/import Occupancy Calculations Occupancy Calculations schedule schedule and fill out for each room from Revitand fill out for each room from Revit
3.3. Create 1/32” scale Create 1/32” scale Occupancy PlanOccupancy Plan and add color and add color schemescheme
4.4. Adjust areas for circulation, furniture, etc, and enter Adjust areas for circulation, furniture, etc, and enter into chart for each levelinto chart for each level
5.5. Chart calculates toilets, egress component Chart calculates toilets, egress component dimensiondimension
6.6. Fix your plans to complyFix your plans to comply
Use a key for specific Use a key for specific occupancy typesoccupancy types
Other information can be shownOther information can be shown
Separation of UseSeparation of Use
Specific occupancies need to have fire Specific occupancies need to have fire rated separation between themrated separation between them
Another checklistAnother checklist