Technical Digest 11 illustrates procedures for the structural engineer to properly analyze, design and specify open web steel joist and joist girder moment frames to resist wind and seismic lateral loads. The design methodology provided is limited to single-story structures subjected to wind and seismic loads; however, the design procedures are applicable to multi-story moment frames subjected to wind loads.

This 98-page third edition, written by James M. Fisher, Ph.D., P.E., covers the importance of the relationship between the specifying professional and the joist manufacturer, describes the analysis requirements for modeling the moment frame and provides design methodology for lateral wind loads and seismic loads. It also shows how to properly design and detail the connections and lateral bracing. There is an extensive discussion on the specification of loads and other design requirements that the specifying professional needs to provide to the joist manufacturer. The digest also includes detailed design examples based on the current AISC 360 Specifications and revised schedules.

Chapters include:

• Relationship Between the Specifying Professional and the Joist Manufacturer
• Analysis Requirements
• Design Methodology and Connections for Lateral Wind Loads
• Design Methodology for Seismic Loads
• Connection Design and Details
• Specification of Loads and Other Design Requirements to the Joist Manufacturer
• Lateral Bracing
• Examples