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TED 316 – Structural Design

Building Classifications: Construction Types. TED 316 – Structural Design. Based on how the building is constructed. Relates to: Materials used Combustibility Fire-resistance. Construction types defined. Types IA and IB Types IIA and IIB Types IIIA and IIIB Type IV Types VA and VB.

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TED 316 – Structural Design

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  1. Building Classifications: Construction Types TED 316 – Structural Design

  2. Based on how the building is constructed. • Relates to: • Materials used • Combustibility • Fire-resistance Construction types defined

  3. Types IA and IB Types IIA and IIB Types IIIA and IIIB Type IV Types VA and VB Construction types

  4. Types IA and IB • Noncombustible and fire-resistive • IA has a higher fire-resistance • Only noncombustible materials allowed • IBC does not determine combustibility • Done through the American Society for Testing and Materials (ASTM) Construction types

  5. Types IIA and IIB Also noncombustible Little or no fire-resistance IIA has minimum of 1-hour fire-resistance IIB has no requirement for fire-resistance unless required by other sections of the code Construction types

  6. Types IIIA and IIIB Combustible Permits wood framing Little to no fire-resistance IIIA requires 1-hour fire-resistance throughout with exterior bearing walls 2-hour IIIB only requires 2-hour fire-resistance for exterior bearing walls Construction types

  7. Type IV • Combustible • Heavy timber construction only • Columns at least 8” thick • Floor and roof framing at least 6” thick • Floor and roof decks 3-4” thick (built up) • Exterior walls noncombustible construction Construction types

  8. Types VA and VB Combustible Slightly less fire-resistance than Type III VA exterior bearing wall fire-resistance is 1-hour VB has no fire-resistance rating Construction types

  9. A building or portion thereof shall not be required to conform to the details of a type of construction higher than that type, which meets the minimum requirements based on occupancy even though certain features of such a building actually conform to a higher type of construction. Mixed ratings = lowest rating

  10. http://www.specsandcodes.com/Articles.htm#CodeArticles http://www.specsandcodes.com/Articles/The%20Code%20Corner%20No.%2015%20%20Building%20Classification%20Part%202%20-%20Construction%20Types.pdf http://en.wikipedia.org/wiki/International_Building_Code http://en.wikipedia.org/w/index.php?title=Special%3ASearch&search=ibc+building+code http://en.wikipedia.org/wiki/Uniform_Building_Code sources

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