Technical Digest 10 is intended to make it easier for the designer to find a fire-resistive steel joist assembly which suits their purpose and to give guidance in the changes which can be made to published design listings without decreasing the fire endurance, including:

• Comprehensive and informative review of fire ratings
• Step-by-step procedure for substituting K-Series joists in assemblies containing “S”, “J” and/or “H” Series joists
• Includes new appendix with a complete listing of U.L. fire rated assemblies containing steel joists. Conveniently arranged by hourly rating, type of protection, insulation, floor/deck type, and minimum joist size and spacing.

Chapters include:

• Fire Resistance Ratings
• Design of Fire-Resistive Assemblies
• Adapting Test Results to Field Conditions
• Extrapolation from Fire Test Design Listings
• Substituting K-Series Joists in U.L. Fire Rated Assemblies Listing S-, J-, and/or H-Series Joists