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AISC D839 2023

AISC D839 2023

$27.08

Design Guide 39: End-Plate Moment Connections

Published By Publication Date Number of Pages
AISC 2023 404
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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

PDF Catalog

PDF Pages PDF Title
1 End-Plate Moment Connections
4 Copyright
5 Authors/Acknowledgments/Preface
7 Table of Contents
11 Chapter 1 Introduction
1.1 Typical Applications
1.2 Overview of this Design Guide
13 1.3 Classifications of End-Plate Moment Connections
14 1.4 Introduction to Seismic Considerations
17 Chapter 2 Background
2.1 Introduction
18 2.2 Development of Design Procedures
2.2.1 Experiments Used to Validate Design Proceduresin This Design Guide
2.2.2 Development of Design Procedures
21 2.3 Selected Key Experimental Programs Around The World
22 2.4 Investigations for Specific Topics
2.4.1 Experiments Focused on Bolt Behavior in End-Plate Moment Connections
2.4.2 Experiments with Variations on the Flange-to-End-Plate Welds
23 2.4.3 Investigations for Combined Bending and Axial Force
2.4.4 Panel Zone Behavior and Tension Field Action Adjacent to an End Plate
24 2.4.5 Connection to Minor Axis of an I-Shaped Column
25 2.4.6 Connection to HSS Column
2.4.7 Column Flange Washer Plates
2.4.8 Effect of Composite Slab
26 2.4.9 Stiffener Geometry for Stiffened Extended End Plates
27 2.4.10 Sloping End-Plate Moment Connections
28 2.4.11 Additional Topics
29 2.5 Computational Simulation and Analytical Methods
2.5.1 Finite Element Method
30 2.5.2 Component Stiffness Models of End-Plate Moment Connections
33 Chapter 3 Overview of Design Concepts
3.1 Overview
35 3.2 Connection Stiffness and Use as Fully Restrained Connection
36 3.3 Design for End-Plate Flexural Yielding
43 3.4 Design of Bolts to Resist Flexure in the Connection
46 3.5 Design for Axial and Shear Forces
47 3.6 Applying Design Principles to Sloped Connections
48 3.7 Additional Limit States and Assumptions
3.7.1 Limit State Checklist
49 3.7.2 Assumptions
50 3.7.3 Column Panel Zone Strength
53 3.7.4 End-Plate Stiffener Requirements
54 3.7.5 Beam and Stiffener Welds to End Plate
56 3.7.6 Column-Side Limit States
59 Chapter 4 Design Considerations
4.1 Design Choices
4.1.1 Thick vs. Thin End-Plate Design for Gravity, Wind, and Low-Seismic-Ductility Design
4.1.2 Limits on Parameters Based on Range Tested
4.1.3 Materials
60 4.2 Detailing Issues
4.2.1 Fit-Up Issues
4.2.2 Bolt and End-Plate Detailing
62 4.2.3 Welds and Weld Access Holes
4.2.4 Composite Slabs
63 4.2.5 Stiffener and Cap Plate Detailing
65 Chapter 5 Gravity, Wind, and Low-Seismic-Ductility Design
5.1 Design Equations
5.1.1 Thick End-Plate Design Procedure
66 5.1.2 Thin End-Plate Design Procedure
68 5.1.3 Design Procedure
69 5.2 Flush End-Plate Connections
5.2.1 Design Tables and Limitations
76 5.2.2 Flush Thick End-Plate Analysis Examples
EXAMPLE 5.2-1—Two-Bolt Flush Unstiffened Thick End-Plate Example
87 EXAMPLE 5.2-2—Four-Bolt Flush Unstiffened Thick End-Plate Example
93 EXAMPLE 5.2-3—Four-Bolt Flush Stiffened with Web Stiffener Plates between the Tension Bolts Thick End-Plate Example
101 EXAMPLE 5.2-4—Four-Bolt Flush Stiffened with Web Stiffeners below the Tension Bolts Thick End-Plate Example
109 EXAMPLE 5.2-5—Six-Bolt Flush Unstiffened Thick End-Plate Example
115 EXAMPLE 5.2-6—Six-Bolt Flush Four-Wide/Two-Wide Unstiffened Thick End-Plate Example
122 5.3 Extended End-Plate Connections
5.3.1 Design Tables and Limitations
132 5.3.2 Extended Thick End-Plate Analysis Examples
133 EXAMPLE 5.3-1—Four-Bolt Extended Unstiffened Thick End-Plate Example
148 EXAMPLE 5.3-2—Four-Bolt Extended Stiffened Thick End-Plate Example
162 EXAMPLE 5.3-3—Multiple-Row Extended 1/2 Unstiffened Thick End-Plate Example
169 EXAMPLE 5.3-4—Multiple-Row Extended 1/3 Unstiffened Thick End-Plate Example
176 EXAMPLE 5.3-5—Multiple-Row Extended 1/3 Stiffened Thick End-Plate Example
183 EXAMPLE 5.3-6—Eight-Bolt Extended Four-Wide Unstiffened Thick End-Plate Example
190 EXAMPLE 5.3-7—Eight-Bolt Extended Stiffened Thick End-Plate Example
198 EXAMPLE 5.3-8—12-Bolt Multiple-Row Extended 1/3 Four-Wide/Two-Wide Unstiffened Thick End-Plate Example
205 EXAMPLE 5.3-9—12-Bolt Extended Stiffened Thick End-Plate Example
215 Chapter 6 High-Seismic-Ductility Design
6.1 Introduction and Design Approach
6.2 Design Requirements
6.2.1 General
216 6.2.2 Geometric Limitations for Beams, Columns, Bolts, and End Plates
218 6.2.3 Design Requirements for Bolts
220 6.2.4 Design Requirements for End Plates
223 6.2.5 Design Requirements for End-Plate Stiffeners
6.2.6 Detailing of Composite Slabs at End-Plate Connections
6.2.7 Weld Design and Detailing Requirements
224 6.2.8 Column-Side Limit States
228 6.3 Design Examples
EXAMPLE 6.3-1—Four-Bolt Extended Unstiffened End-Plate Example
244 EXAMPLE 6.3-2—Four-Bolt Extended Stiffened End-Plate Example
257 EXAMPLE 6.3-3—Eight-Bolt Extended Stiffened End-Plate Example
273 APPENDIX A Column-Side Yield Line Parameters
287 APPENDIX B Gravity, Wind, and Low-Seismic-Ductility Thin End-Plate Design Examples
B.1 Connection Examples
B.2 Flush Thin End-Plate Connections
EXAMPLE B.2-1—Two-Bolt Flush Unstiffened Thin End-Plate Example
292 EXAMPLE B.2-2—Four-Bolt Flush Unstiffened Thin End-Plate Example
297 EXAMPLE B.2-3—Four-Bolt Flush Stiffened with Web Stiffener between the Tension Bolts Thin End-Plate Example
302 EXAMPLE B.2-4—Four-Bolt Flush Stiffened with Web Stiffener below the Tension Bolts Thin End-Plate Example
307 EXAMPLE B.2-5—Six-Bolt Flush Unstiffened Thin End-Plate Example
312 EXAMPLE B.2-6—Six-Bolt Flush Four-Wide/Two-Wide Unstiffened Thin End-Plate Example
317 B.3 Extended Thin End-Plate Connections
EXAMPLE B.3-1—Four-Bolt Extended Unstiffened Thin End-Plate Example
324 EXAMPLE B.3-2—Four-Bolt Extended Stiffened Thin End-Plate Example
331 EXAMPLE B.3-3—Multiple-Row Extended 1/2 Unstiffened Thin End-Plate Example
338 EXAMPLE B.3-4—Multiple-Row Extended 1/3 Unstiffened Thin End-Plate Example
344 EXAMPLE B.3-5—Multiple-Row Extended 1/3 Stiffened Thin End-Plate Example
350 EXAMPLE B.3-6—Eight-Bolt Extended Four-Wide Unstiffened Thin End-Plate Example
357 EXAMPLE B.3-7—Eight-Bolt Extended Stiffened Thin End-Plate Example
367 EXAMPLE B.3-8—12-Bolt Multiple-Row Extended 1/3 Four-Wide/Two-Wide Unstiffened Thin End-Plate Example
373 EXAMPLE B.3-9—12-Bolt Extended Stiffened Thin End-Plate Example
381 Symbols
387 References
404 Back Cover

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