Transcription of Chapter 3: Use and Occupancy Classification - iccsafe.org
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Chapter 3: Use and Occupancy Classification - iccsafe.org
Chapter 3: Use and Occupancy Classification General Comments I construction is the Classification that generally requires the highest fire-resistance ratings for structural ele- Chapter 3 provides for the Classification of buildings, ments, whereas Type V construction, which is desig- structures and parts thereof based on the purpose or nated as a combustible type of construction, generally purposes for which they are used. requires the least amount of fire-resistance-rated struc- Section 302 identifies the Occupancy groups into tural elements. If one then looks at Tables , which all buildings, structures and parts thereof must be and , the relationship among group Classification , classified. allowable heights and areas and types of construction Sections 303 through 312 identify the Occupancy becomes apparent. Respective to each group classifica- characteristics of each group Classification . In some tion, the greater the fire-resistance rating of structural sections, specific group classifications having require- elements, as represented by the type of construction, ments in common are collectively organized such that the greater the floor area and height allowances.
Chapter 3: Use and Occupancy Classification General Comments ... bustible contents and burnable building components); and 3. The level of overall fire resistance provided by ... 302.1 contemplates occupant loads as dense as 5 square feet (0.46 m2) per person (see Table 1004.1.1). Darkened spaces in theaters, nightclubs
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