Page 206 - Structural Steel Designers Handbook AISC, AASHTO, AISI, ASTM, and ASCE-07 Design Standards

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BUILDING CODES, LOADS, AND FIRE PROTECTION*

4.34 CHAPTER FOUR

FIGURE 4.6 Curve relating approximate fire severity to average weight of combustibles on floor area
in a building.

TABLE 4.18 Typical Occupancy Fire Loads and Fire Severity
Occupancy Equivalent
Type of occupancy fire load, lb/ft 2 fire severity, h
Assembly 5 to 10 1 / 2 to 1
Business 5 to 10 1 / 2 to 1
Educational 5 to 10 1 / 2 to 1
Hazardous Variable Variable
Industrial
Low hazard 0 to 10 0 to 1
1
Moderate hazard 10 to 25 1 to 2 / 2
Institutional 5 to 10 1 / 2 to 1
Mercantile 10 to 20 1 to 2
Residential 5 to 10 1 / 2 to 1
Storage
Low hazard 0 to 10 0 to 1
Moderate hazard 10 to 30 1 to 3
Source: Based on data in Fire Protection through Modern Building Codes,
American Iron and Steel Institute, Washington, D.C.

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