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Showing posts with the label Stairways

Stairway towers in code

When a building's height is greater than or equal to 75 feet, at least one of the required exits must be:  A. a fire tower,   B. a smoke proof tower,   C. a smoke proof enclosure,   D. B+C but not A, E. A, B+C

Table 601

IBC Table 601 gives the required fire-resistance ratings in hours. Which primary building elements constitute the structural frame specified by these requirements? I. lateral bracing, II. roof framing, III. columns, IV. stairways, V. girders, beams, VI trusses A. III, V, VI,   B. I, III, V,   C. I, II, III, V, VI,   D. II, III, V