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BUILDING CODES, LOADS, AND FIRE PROTECTION*
BUILDING CODES, LOADS, AND FIRE PROTECTION 4.39
FIGURE 4.10 Steel floor system fire protected on the underside by a suspended ceiling.
Design information on the fire resistance of steel columns encased in concrete or masonry, or pro-
tected with precast-concrete column covers, is available in American Concrete Institute, Specification
216.1-97, “Standard Calculation Methods for Structural Fire Protection,” 1997; ASCE/SFPE 29-99,
1999; and International Building Code, 2003.
4.12.6 Architecturally Exposed Structural Steel (AESS)
This AESS concept involves the architectural expression of structural systems on building exteriors or
interiors, in contrast to the general practice of concealing them behind decorative facades. Design of AESS
is strongly influenced by esthetics and the building code requirements for fire-resistant construction.
FIGURE 4.11 Concrete-encased steel column.
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