Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic ...

284 Pages·2016·7.67 MB·English

ANSI/AISC 358-16
An American National Standard
Prequalified Connections for
Special and Intermediate
Steel Moment Frames for
Seismic Applications
May 12, 2016
Supersedes ANSI/AISC 358-10, ANSI/AISC 358s1-11, ANSI/AISC 358s2-14
and all previous versions
Approved by the Connection Prequalification Review Panel
AMERICAN INSTITUTE OF STEEL CONSTRUCTION
130 East Randolph Street, Suite 2000, Chicago, Illinois 60601
www.aisc.org
Covers_A358-16.indd 1 10/24/16 9:10 PM
9.2-ii
AISC © 2016
by
American Institute of Steel Construction
All rights reserved. This book or any part thereof
must not be reproduced in any form without the
written permission of the publisher.
The AISC logo is a registered trademark of AISC.
The information presented in this publication has been prepared by a balanced committee
following American National Standards Institute (ANSI) consensus procedures and
recognized principles of design and construction. While it is believed to be accurate, this
information should not be used or relied upon for any specific application without competent
professional examination and verification of its accuracy, suitability and applicability by a
licensed engineer or architect. The publication of this information is not a representation
or warranty on the part of the American Institute of Steel Construction, its officers, agents,
employees or committee members, or of any other person named herein, that this information
is suitable for any general or particular use, or of freedom from infringement of any patent or
patents. All representations or warranties, express or implied, other than as stated above, are
specifically disclaimed. Anyone making use of the information presented in this publication
assumes all liability arising from such use.
Caution must be exercised when relying upon standards and guidelines developed by other
bodies and incorporated by reference herein since such material may be modified or amended
from time to time subsequent to the printing of this edition. The American Institute of Steel
Construction bears no responsibility for such material other than to refer to it and incorporate
it by reference at the time of the initial publication of this edition.
Printed in the United States of America
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
PC SPEC 358_01_FM.indd 2 10/7/16 11:40 AM
9.2-iii
PREFACE
(This Preface is not part of ANSI/AISC 358-16, Prequalified Connections for Special and
Intermediate Steel Moment Frames for Seismic Applications, but is included for informa-
tional purposes only.)
ANSI/AISC 358-16, Prequalified Connections for Special and Intermediate Steel Moment
Frames for Seismic Applications, was developed using a consensus process in concert with
the Specification for Structural Steel Buildings (ANSI/AISC 360-16) and Seismic Provisions
for Structural Steel Buildings (ANSI/AISC 341-16). ANSI/AISC 358-16 is incorporated by
reference into the Seismic Provisions.
This edition includes minor editorial updates and clarifications from previous versions as
well as two additional prequalified moment connections: the Simpson Strong Frame moment
connection (Chapter 12) and the double-tee moment connection (Chapter 13).
A nonmandatory Commentary has been prepared to provide background for the provi-
sions of the Standard, and the user is encouraged to consult it. Additionally, nonmandatory
User Notes are interspersed throughout the Standard to provide concise and practical guid-
ance in the application of the provisions.
The reader is cautioned that professional judgment must be exercised when data or rec-
ommendations in this Standard are applied, as described more fully in the disclaimer notice
preceding the Preface.
This standard was approved by the Connection Prequalification Review Panel:
Ronald O. Hamburger, Chairman Kevin Moore
Scott F. Armbrust, Vice-Chairman Thomas M. Murray
John Abruzzo Charles W. Roeder
Joel A. Chandler Paul A. Rouis
Michael L. Cochran Thomas A. Sabol
Theodore L. Droessler Robert E. Shaw, Jr.
Michael D. Engelhardt James A. Swanson
Gary Glenn Chia-Ming Uang
Robert Hazleton Behnam Yousefi
Gregory H. Lynch Keith A. Grubb, Secretary
Brett R. Manning Margaret A. Matthew, Secretary
The CPRP gratefully acknowledges the following individuals for their contributions to
this document:
Leigh Arber Steven E. Pryor
Charles J. Carter C. Mark Saunders
Cynthia J. Duncan Matthew A. Troemner
James O. Malley
Duane K. Miller
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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9.2-iv
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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9.2-v
TABLE OF CONTENTS
SYMBOLS .............................................................xiv
GLOSSARY ...........................................................xxiii
STANDARD
CHAPTER 1. GENERAL ................................................. 1
1.1. Scope ....................................................... 1
1.2. References ................................................... 1
1.3. General ...................................................... 3
CHAPTER 2. DESIGN REQUIREMENTS ................................... 4
2.1. Special and Intermediate Moment Frame Connection Types ............ 4
2.2. Connection Stiffness ........................................... 4
2.3. Members ..................................................... 4
1. Rolled Wide-Flange Members ................................ 4
2. Built-up Members ......................................... 4
2a. Built-up Beams ........................................... 4
2b. Built-up Columns ......................................... 5
3. Hollow Structural Sections (HSS) ............................. 7
2.4. Connection Design Parameters ................................... 7
1. Resistance Factors ......................................... 7
2. Plastic Hinge Location ..................................... 7
3. Probable Maximum Moment at Plastic Hinge ................... 7
4. Continuity Plates .......................................... 8
2.5. Panel Zones .................................................. 8
2.6. Protected Zone ................................................ 8
CHAPTER 3. WELDING REQUIREMENTS ............................... 10
3.1. Filler Metals ................................................. 10
3.2. Welding Procedures ........................................... 10
3.3. Backing at Beam-to-Column and Continuity Plate-to-Column Joints ..... 10
1. Steel Backing at Continuity Plates ........................... 10
2. Steel Backing at Beam Bottom Flange ........................ 10
3. Steel Backing at Beam Top Flange ........................... 10
4. Prohibited Welds at Steel Backing ........................... 11
5. Nonfusible Backing at Beam Flange-to-Column Joints ........... 11
3.4. Weld Tabs ................................................... 11
3.5. Tack Welds .................................................. 11
3.6. Continuity Plates ............................................. 12
3.7. Quality Control and Quality Assurance ............................ 12
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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9.2-vi TABLE OF CONTENTS
CHAPTER 4. BOLTING REQUIREMENTS ................................ 13
4.1. Fastener Assemblies ........................................... 13
4.2. Installation Requirements ....................................... 13
4.3. Quality Control and Quality Assurance ............................ 13
CHAPTER 5. REDUCED BEAM SECTION (RBS) MOMENT CONNECTION .. 14
5.1. General ..................................................... 14
5.2. Systems .................................................... 14
5.3. Prequalification Limits ......................................... 14
1. Beam Limitations ........................................ 14
2. Column Limitations ....................................... 15
5.4. Column-Beam Relationship Limitations ........................... 16
5.5. Beam Flange-to-Column Flange Weld Limitations ................... 16
5.6. Beam Web-to-Column Flange Connection Limitations ................ 16
5.7. Fabrication of Flange Cuts ...................................... 17
5.8. Design Procedure ............................................. 18
CHAPTER 6. BOLTED UNSTIFFENED AND STIFFENED EXTENDED
END-PLATE MOMENT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . 21
6.1. General ..................................................... 21
6.2. Systems .................................................... 21
6.3. Prequalification Limits ......................................... 22
1. Beam Limitations ........................................ 22
2. Column Limitations ....................................... 22
6.4. Column-Beam Relationship Limitations ........................... 24
6.5. Continuity Plates ............................................. 24
6.6. Bolts ....................................................... 24
6.7. Connection Detailing .......................................... 24
1. Gage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2. Pitch and Row Spacing .................................... 24
3. End-Plate Width ......................................... 26
4. End-Plate Stiffener ....................................... 26
5. Finger Shims ............................................ 27
6. Welding Details .......................................... 27
6.8. Design Procedure ............................................. 29
1. End-Plate and Bolt Design ................................. 29
2. Column-Side Design ...................................... 34
CHAPTER 7. BOLTED FLANGE PLATE (BFP) MOMENT CONNECTION .... 39
7.1. General ..................................................... 39
7.2. Systems .................................................... 39
7.3. Prequalification Limits ......................................... 40
1. Beam Limitations ........................................ 40
2. Column Limitations ....................................... 40
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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TABLE OF CONTENTS 9.2-vii
7.4. Column-Beam Relationship Limitations ........................... 41
7.5. Connection Detailing .......................................... 41
1. Plate Material Specifications ................................ 41
2. Beam Flange Plate Welds .................................. 41
3. Single-Plate Shear Connection Welds ......................... 41
4. Bolt Requirements ........................................ 41
5. Flange Plate Shims ....................................... 42
7.6. Design Procedure ............................................. 42
CHAPTER 8. WELDED UNREINFORCED FLANGE-WELDED WEB (WUF-W)
MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.1. General ..................................................... 46
8.2. Systems .................................................... 46
8.3. Prequalification Limits ......................................... 46
1. Beam Limitations ........................................ 46
2. Column Limitations ....................................... 47
8.4. Column-Beam Relationship Limitations ........................... 48
8.5. Beam Flange-to-Column Flange Welds ............................ 48
8.6. Beam Web-to-Column Connection Limitations ...................... 48
8.7. Design Procedure ............................................. 49
CHAPTER 9. KAISER BOLTED BRACKET (KBB)
MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
9.1. General ..................................................... 52
9.2. Systems .................................................... 53
9.3. Prequalification Limits ......................................... 53
1. Beam Limitations ........................................ 53
2. Column Limitations ....................................... 54
3. Bracket Limitations ....................................... 55
9.4. Column-Beam Relationship Limitations ........................... 55
9.5. Bracket-to-Column Flange Connection Limitations .................. 55
9.6. Bracket-to-Beam Flange Connection Limitations .................... 56
9.7. Beam Web-to-Column Connection Limitations ...................... 56
9.8. Connection Detailing .......................................... 57
9.9. Design Procedure ............................................. 57
CHAPTER 10. CONXTECH CONXL MOMENT CONNECTION .............. 64
10.1. General ..................................................... 64
10.2. Systems .................................................... 67
10.3. Prequalification Limits ......................................... 68
1. Beam Limitations ........................................ 68
2. Column Limitations ....................................... 68
3. Collar Limitations ........................................ 69
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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9.2-viii TABLE OF CONTENTS
10.4. Collar Connection Limitations ................................... 70
10.5. Beam Web-to-Collar Connection Limitations ....................... 72
10.6. Beam Flange-to-Collar Flange Welding Limitations .................. 72
10.7. Column-Beam Relationship Limitations ........................... 72
10.8. Design Procedure ............................................. 73
10.9. Part Drawings ................................................ 78
CHAPTER 11. SIDEPLATE MOMENT CONNECTION ...................... 88
11.1. General ..................................................... 88
11.2. Systems .................................................... 93
11.3. Prequalification Limits ......................................... 93
1. Beam Limitations ........................................ 93
2. Column Limitations ....................................... 95
3. Connection Limitations .................................... 96
11.4. Column-Beam Relationship Limitations ........................... 96
11.5. Connection Welding Limitations ................................ 100
11.6. Connection Detailing ......................................... 102
1. Plates ................................................. 102
2. Welds ................................................. 103
11.7. Design Procedure ............................................ 105
CHAPTER 12. SIMPSON STRONG-TIE STRONG FRAME
MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
12.1. General .................................................... 110
12.2. Systems ................................................... 110
12.3. Prequalification Limits ........................................ 110
1. Beam Limitations ....................................... 110
2. Column Limitations ...................................... 112
3. Bolting Limitations ...................................... 112
12.4. Column-Beam Relationship Limitations .......................... 113
12.5. Continuity Plates ............................................ 113
12.6. Yield-Link Flange-to-Stem Weld Limitations ...................... 113
12.7. Fabrication of Yield-Link Cuts .................................. 113
12.8. Connection Detailing ......................................... 115
1. Beam Coping ........................................... 115
2. Yield-Links ............................................ 115
3. Shear Plate Connection Bolts .............................. 115
4. Shear-Plate Shear Connection Welds ........................ 115
5. Bolt Hole Requirements .................................. 115
6. Buckling Restraint Assembly .............................. 115
7. Shims ................................................. 118
12.9. Design Procedure ............................................ 118
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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TABLE OF CONTENTS 9.2-ix
CHAPTER 13. DOUBLE-TEE MOMENT CONNECTION ................... 127
13.1. General .................................................... 127
13.2. Systems ................................................... 129
13.3. Prequalification Limits ........................................ 131
1. Beam Limitations ....................................... 131
2. Column Limitations ...................................... 131
13.4. Column-Beam Relationship Limitations .......................... 132
13.5. Connection Detailing ......................................... 132
1. T-Stub Material Specifications ............................. 132
2. Continuity Plates ........................................ 132
3. Single-Plate Shear Connection Welds ........................ 132
4. Bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
5. T-Stub Shims ........................................... 133
13.6. Design Procedure ............................................ 133
APPENDIX A. CASTING REQUIREMENTS .............................. 145
A1. Cast Steel Grade ............................................. 145
A2. Quality Control (QC) ......................................... 145
1. Inspection and Nondestructive Testing Personnel ............... 145
2. First Article Inspection (FAI) of Castings ..................... 145
3. Visual Inspection of Castings .............................. 145
4. Nondestructive Testing (NDT) of Castings .................... 145
4a. Procedures ............................................. 145
4b. Required NDT .......................................... 146
5. Weld Repair Procedures .................................. 146
6. Tensile Requirements .................................... 146
7. Charpy V-Notch (CVN) Requirements ....................... 146
8. Casting Identification .................................... 147
A3. Manufacturer Documents ...................................... 147
1. Submittal to Patent Holder ................................ 147
2. Submittal to Engineer of Record and Authority
Having Jurisdiction ...................................... 147
APPENDIX B. FORGING REQUIREMENTS .............................. 148
B1. Forged Steel Grade ........................................... 148
B2. Bar Stock .................................................. 148
B3. Forging Temperature ......................................... 148
B4. Heat Treatment .............................................. 148
B5. Finish ..................................................... 148
B6. Quality Assurance ........................................... 148
B7. Documentation .............................................. 148
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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9.2-x TABLE OF CONTENTS
COMMENTARY
INTRODUCTION ...................................................... 151
CHAPTER 1. GENERAL ............................................... 152
1.1. Scope ..................................................... 152
1.2. References ................................................. 153
1.3. General .................................................... 153
CHAPTER 2. DESIGN REQUIREMENTS ................................. 154
2.1. Special and Intermediate Moment Frame Connection Types .......... 154
2.3. Members ................................................... 155
2. Built-up Members ....................................... 155
2b. Built-up Columns ....................................... 156
2.4. Connection Design Parameters ................................. 157
1. Resistance Factors ....................................... 157
2. Plastic Hinge Location ................................... 157
3. Probable Maximum Moment at Plastic Hinge ................. 157
4. Continuity Plates ........................................ 157
CHAPTER 3. WELDING REQUIREMENTS .............................. 160
3.3. Backing at Beam-to-Column and Continuity Plate-to-Column Joints .... 160
1. Steel Backing at Continuity Plates .......................... 160
2. Steel Backing at Beam Bottom Flange ....................... 160
3. Steel Backing at Beam Top Flange .......................... 161
4. Prohibited Welds at Steel Backing .......................... 161
5. Nonfusible Backing at Beam Flange-to-Column Joints .......... 161
3.4. Weld Tabs .................................................. 161
3.5. Tack Welds ................................................. 162
3.6. Continuity Plates ............................................ 162
3.7. Quality Control and Quality Assurance ........................... 163
CHAPTER 4. BOLTING REQUIREMENTS ............................... 164
4.1. Fastener Assemblies .......................................... 164
4.2. Installation Requirements ...................................... 164
4.3. Quality Control and Quality Assurance ........................... 164
CHAPTER 5. REDUCED BEAM SECTION (RBS) MOMENT CONNECTION . 165
5.1 General .................................................... 165
5.2 Systems ................................................... 166
5.3. Prequalification Limits ........................................ 166
1. Beam Limitations ....................................... 166
2. Column Limitations ...................................... 167
5.4. Column-Beam Relationship Limitations .......................... 169
5.5. Beam Flange-to-Column Flange Weld Limitations .................. 169
Prequalified Connections for Special and Intermediate
Steel Moment Frames for Seismic Applications, May 12, 2016
American Institute of Steel Construction
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