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TED 316 – Structural Design

Building Classifications: Occupancies. TED 316 – Structural Design. Most things have classifications Objective classifications Drivers’ licenses Hazardous materials Tests and assignments (hopefully) Subjective classifications Social status Favorite movies. types of classifications.

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TED 316 – Structural Design

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  1. Building Classifications: Occupancies TED 316 – Structural Design

  2. Most things have classifications • Objective classifications • Drivers’ licenses • Hazardous materials • Tests and assignments (hopefully) • Subjective classifications • Social status • Favorite movies types of classifications

  3. Provide an essential building block in developing an effective building code • Occupancy • Based on how it will be used • Construction type • Based on the type of construction used Building code classifications

  4. Oversight organizations • Uniform Building Code (UBC) • First published in 1927 • International Council of Building Officials • Promoted public safety & standardized safe construction • International Building Code (IBC) • Replaced the UBC in 2000 • International Code Council (ICC) • ICC was a merger of: • International Council of Building Officials (ICBO) Uniform Building Code • Building Officials and Code Administrators International (BOCA) The BOCA National Building Code • Southern Building Code Congress International (SBCCI) Standard Building Code • Primarily used in North America Occupancy classifications

  5. UBC definition: • “The purpose that a building, or part thereof, is used or intended to be used • Essentially how the building will be used • IBC • Does not specifically define occupancy Occupancy defined

  6. UBC placed the responsibility on building official Conflict with architects (designing without knowing code regulations) IBC does not specify who IBC states “structures will be classified with respect to occupancy” Architects can legally determine occupancy code, building official can agree or not Who determines occupancy code

  7. IBC has ten occupancy groups Many have subgroups Subgroups are numbered Lower number = greater perceived risk Occupancy groups

  8. Most assigned strictly on intended use/uses • Many building have areas that have different uses. • Using a fire department as an example: • Storage of equipment • Sleeping • Meeting • Office • Considered “mixed occupancies” Occupancy group assignments

  9. Incidental use areas • Provide minor support to main occupancy code • Storage, mechanical, specialty areas • Does not meet minimum size requirements • Assembly = 705 sq. ft. • Based on 50 people x 15 sq. ft. per person Occupancy group assignments

  10. Assembly: Groups A-1, A-2, A-3, A-4 and A-5 Business: Group B Educational: Group E Factory and Industrial: Groups F-1 and F-2 High Hazard: Groups H-1, H-2, H-3, H-4 and H-5 Occupancy groups

  11. Institutional: Groups I-1, I-2, I-3 and I-4 Mercantile: Group M Residential: Groups R-1, R-2, R-3 and R-4 Storage: Groups S-1 and S-2 Utility and Miscellaneous: Group U Occupancy groups

  12. http://www.specsandcodes.com/Articles.htm#CodeArticles http://www.specsandcodes.com/Articles/The%20Code%20Corner%20No.%2014%20-%20Building%20Classification%20Part%201%20-%20Occupancies.pdf sources

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