AISC D801 2024

$27.08

Design Guide 1: Base Connection Design for Steel Structures (Third Edition)

Published By	Publication Date	Number of Pages
AISC	2024	220

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Description

This new edition of AISC Design Guide 1, Base Connection Design for Steel Structures, provides detailed analysis and design guidance on base connections. Years of research contributed to the significant expansions included in the design guide in areas of seismic design and embedded base connection design. Guidance is also offered on the simulation of base connections in finite element models. Extensive design examples are included.

PDF Catalog

PDF Pages	PDF Title
1	Base Connection Design for Steel Structures
4	Copyright
5	Authors, Acknowledgments, Preface
7	Table of Contents
11	Chapter 1 Introduction 1.1 General
12	1.2 History and Advancements 1.2.1 Previous Editions of Design Guide 1 and Research Synthesis
14	1.22 Relevant Developments since the Publication of Design Guide 1, 2nd Ed.
15	1.3 Scope, Updates, and Preview
17	Chapter 2 Materials – Specifications, Selection, and Other Considerations 2.1 Base Plate and Anchor Rod Material Specifications 2.2 Base Plate Material Selection 2.3 Anchor Rod Selection (Material, Type, and Weldability)
19	2.4 Weld Materials 2.5 Grout Materials
20	2.6 Concrete Materials
21	Chapter 3 Base Selection, Design, and Simulation 3.1 Overview and Organization 3.2 Base Connection Configurations 3.2.1 Base Connections for Columns without Braces
24	3.22 Base Connections for Columns with Braces
25	3.3 Interaction of Base Connections with Frames
26	3.3.1 General Observations about Base Connection Load-Deformation Response 3.3.2 Modeling Base Connections for Strong-Base Design
27	3.3.3 Modeling Base Connections for Weak-Base Design
29	Chapter 4 Design of Exposed Column Base Connections 4.1 Overview and Organization 4.2 Overall Design Process and Flow
30	4.3 Load Combinations 4.3.1 Design for Axial Compression
36	4.3.2 Design for Axial Tension
43	4.3.3 Design for Shear
47	4.3.4 Design for Combined Axial Tension and Shear 4.3.5 Design for Combined Axial Compression and Shear
48	4.3.6 Design for Bending
49	4.3.7 Design for Combined Axial Compression and Bending
56	4.3.8 Design for Combined Axial Tension and Bending
57	4.3.9 Design for Combined Axial Compression, Bending, and Shear
58	4.3.10 Design for Combined Axial Tension, Bending, and Shear 4.3.11 Design for Combined Axial Compression and Biaxial Bending
59	4.4 Anchorage Design for Concrete Limit States 4.4.1 Approaches for Using Reinforcement to Strengthen Concrete Limit States
63	4.4.2 Use of Strut-and-Tie Methodologies in Anchor Design 4.5 Exposed Base Plate Connections – Fabrication and Installation 4.5.1 Base Plate Fabrication and Finishing
64	4.5.2 Base Plate Welding
65	4.5.3 Anchor Rod Holes and Washers
67	4.5.4 Anchor Rod Placement and Tolerances
68	4.5.5 Column Erection Procedures
69	4.5.6 Grouting Requirements
70	4.6 Exposed Column Base Connections – Repair and Field Fixes 4.6.1 Anchor Rods in the Wrong Position 4.6.2 Anchor Rods Bent or Not Vertical 4.6.3 Anchor Rod Projection Too Long or Too Short
74	4.6.4 Anchor Rod Pattern Rotated 90 4.7 Design Examples Example 4.7-1 Base Connection for Concentric Axial Compression Load (No Concrete Refinement)
77	Example 4.7-2 Base Connection for Concentric Axial Compression Load (Using Concrete Confinement)
80	Example 4.7-3 Base Connection for Concentric Axial Tension Load
86	Example 4.7-4 Base Connection for Concentric Shear Load (Limited by Edge Distance)
90	Example 4.7-5 Base Connection for Concentric Shear Load (Shear Lug Design)
101	Example 4.7-6 Base Connection for Anchor Rods Resisting Combined Tension and Shear
106	Example 4.7-7 Base Connection at Brace Producing Combined Tension and Shear
114	Exaple 4.7-8 Base Connection at Brace Producing Combined Compression and Shear
119	Example 4.7-9 Base Connection for Bending
125	Example 4.7-10 Base Connection for Bending without Anchor Rod Tension (Low Moment)
128	Example 4.7-11 Base Connection for Bending with Anchor Rod Tension (Large Moment)
135	Example 4.7-12 Base Connection for Bending with Anchor Rod Tension (Large Moment)
137	Example 4.7-13 Base Connection for Bending with Anchor Rod Tension (Low Moment)
140	Example 4.7-14 Base Connection for Biaxial Bending with Axial Compression
144	Example 4.7-15 Anchor Reinforcement Design
151	Chapter 5 Design of Embedded Base Connections 5.1 Context for Use of Embedded Base Connections 5.2 Connection Configurations and Load Resistance Mechanisms
153	5.2.1 Type I Connections
155	5.2.2 Type II Connections
157	5.3 Design Method for Combined Bending, Shear, and Axial Force
158	Example 5.3-1 Embedded Base Connection for Bending, Shear, and Axial Compression
160	5.4 Fabrication and Installation
161	Chapter 6 Design of Column Base Connections for Seismic Loading 6.1 Overview and Organization 6.2 Seismic Performance Requirements for Column Bases
164	6.3 Influence of Grade Beams and Other Footing Effects 6.4 Design Method for Seismic Design of Column Base Connections in Moment Frames 6.4.1 Strong-Base Design for Seismic Conditions
165	6.4.2 Weak-Base Design For Seismic Conditions
166	Example 6.4-1 Weak-Base Design of a Base Plate Connection with Ductile Anchor Rods
171	6.5 Seismic Design of Braced Frame Base Plate Connections
173	Appendix A Special Considerations for Double-Nut Joints, Pretension Joints, and Special Structures A.1 Design Requirements A.1.1 Compression Limit State for Anchor Rods A.1.2 Tensile Fatigue Limit State for Anchor Rods
177	A.2 Installation Requirements for Pretensioned Joints A.2.1 Double-Nut Joints
180	A.2.2 Pretensioned Joints A.3 Inspection and Maintenance After Installation
183	Appendix B Alternate Methods for Design B.1 Context and Motivation B.2 Triangular Pressure Distribution B.2.1 Introduction
184	B.2.2 Determining Required Base Plate Thickness from Required Strength B.2.3 Determination of Required Stress and Effects of Eccentricity
185	B.2.4 Design Procedure
189	Example B.2-1 Base Connection for Bending without Anchor Rod Tension (Low Moment), Triangular Pressure Distribution
192	Example B.2-2 Base Connection for Bending with Anchor Rod Tension (Large Moment), Triangular Pressure Distribution
196	B.3 Design of Base Plates under Axial Compression Considering Flexibility
197	Example B.3-1 Base Connection for Concentric Axial Compression Load (with Concrete Confinement)
198	B.4 Design of Base Plate Bearing Interface under Two-Way Bending
199	Appendix C Guidance for Simulating Column Base Connections in Structural Analysis C.1 Introduction C.2 Rotational Stiffness Models
200	C.2.1 Estimation of Rotational Stiffness for Exposed Column Base Connections
202	C.2.2 Estimation of Rotational Stiffness for Shallowly Embedded or Blockout Base Connections
203	C.2.3 Estimation of Rotational Stiffness for Embedded Base Connections C.3 Commentary Regarding Hysteretic Properties of Base Connections
204	C.3.1 Physics of Connection Response
206	C.3.2 Simulating Base Connection Hysteretic Response
207	Appendix D Guidance for the Use of Finite Element Analysis for Base Plate Analysis and Design, Focused on Exposed Column Base Connection Details D.1 Context and Motivation D.2 Problem Scope and Statement D.3 Model Constructs
208	D.4 Geometry, Boundary Conditions, and Contact/Interactions D.4.1 Representation of Geometry of Components
209	D.4.2 Application of Boundary Conditions and Loads
210	D.5 Finite Element Types and Material Properties
211	D.6 Verification of Results
212	D.7 Interpretation of Results
213	References
220	Back Cover