Design Guide 39: End-Plate Moment Connections
End-plate moment connections are a simple approach to provide a quick-to-erect fully rigid connection without the need for field welding. This Design Guide centralizes AISC’s existing design procedures for end-plate moment connections (Design Guides 4, 16, and AISC 358-22 Chapter 6) into a single consistent document. It includes an extensive literature review, thorough discussions of design concepts, updated design procedures consistent with the latest research, and many (33!) design examples. The design procedures now also cover an expanded 15 end-plate configurations. This Design Guide serves as a comprehensive resource for the understanding and design of end-plate moment connections.
The scope of this Design Guide includes the development of fundamental concepts, conversion of these concepts into design equations, and design examples. Gravity, wind, and low-seismic-ductility applications are covered, as well as high-seismic-ductility applications. Both allowable strength design (ASD) and load and resistance factor design (LRFD) procedures are discussed and illustrated throughout this Design Guide. While some concepts are unique to built-up members, the design procedures can be applied to both conventional hot-rolled steel sections or built-up steel sections. Two previous AISC Design Guides were consolidated and updated in this Design Guide. Design Guide 16, Flush and Extended Multiple-Row Moment End-Plate Connections (Murray and Shoemaker, 2002), provided information, concepts, design procedures, and examples for nine endplate moment connection configurations. Design Guide 16 was intended for use in low-seismic-ductility applications. The second edition of Design Guide 4, Extended End-Plate Moment Connections, Seismic and Wind Applications (Murray and Sumner, 2004), included seismic design procedures and examples for three end-plate moment connection configurations.
Besides consolidating information from the previous AISC Design Guides 4 and 16, some of the changes and additions incorporated into the current Design Guide are:
• Expanded background chapter with more information on past testing.
• Added fundamental information on how to conduct yield line analysis.
• Included development of prying action forces.
• Added more information about how to handle specific conditions such as sloping connections and large axial forces.
• Added more information on column-side limit states.
• Added more discussion of design and detailing considerations.
• Added more connection configurations to go from nine configurations in the previous Design Guide 16 to 15 in this Design Guide.
• Expanded discussion of seismic design issues and new design examples demonstrating seismic design procedures.
Besides consolidating information from the previous AISC Design Guides 4 and 16, some of the changes and additions incorporated into the current Design Guide are:
• Expanded background chapter with more information on past testing.
• Added fundamental information on how to conduct yield line analysis.
• Included development of prying action forces.
• Added more information about how to handle specific conditions such as sloping connections and large axial forces.
• Added more information on column-side limit states.
• Added more discussion of design and detailing considerations.
• Added more connection configurations to go from nine configurations in the previous Design Guide 16 to 15 in this Design Guide.
• Expanded discussion of seismic design issues and new design examples demonstrating seismic design procedures.
Publication Date: August 2023
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