Prequalified Connections for Special and Intermediate ...

1 ANSI/AISC 358-16 An American National StandardPrequalified Connections for Special and Intermediate Steel Moment Frames for Seismic ApplicationsMay 12, 2016 Supersedes ANSI/AISC 358-10, ANSI/AISC 358s1-11, ANSI/AISC 358s2-14and all previous versionsApproved by the connection Prequalification Review PanelAMERICAN INSTITUTE OF STEEL CONSTRUCTION130 East Randolph Street, Suite 2000, Chicago, Illinois 60601 110/24/16 9:10 PMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel ConstructionAISC 2016byAmerican Institute of Steel ConstructionAll rights reserved. This book or any part thereof must not be reproduced in any form without the written permission of the AISC logo is a registered trademark of 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.

2 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 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.

3 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 in the United States of SPEC 210/7/16 11:40 AMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel (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).

4 ANSI/AISC 358-16 is incorporated by reference into the Seismic 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 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 standard was approved by the connection Prequalification Review Panel:Ronald O.

5 Hamburger, ChairmanScott F. Armbrust, Vice-ChairmanJohn AbruzzoJoel A. ChandlerMichael L. CochranTheodore L. DroesslerMichael D. EngelhardtGary GlennRobert HazletonGregory H. LynchBrett R. ManningKevin MooreThomas M. MurrayCharles W. RoederPaul A. RouisThomas A. SabolRobert E. Shaw, A. SwansonChia-Ming UangBehnam YousefiKeith A. Grubb, Secretary Margaret A. Matthew, SecretaryThe CPRP gratefully acknowledges the following individuals for their contributions to this document:Leigh ArberCharles J. CarterCynthia J. DuncanJames O. MalleyDuane K. MillerSteven E. PryorC. Mark SaundersMatthew A. TroemnerPC SPEC 310/7/16 11:40 AMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel SPEC 410/7/16 11:40 AMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel OF CONTENTSSYMBOLS.

6 XivGLOSSARY ..xxiiiSTANDARDCHAPTER 1. GENERAL .. Scope .. References .. General ..3 CHAPTER 2. DESIGN REQUIREMENTS .. Special and Intermediate Moment Frame connection Types .. connection Stiffness .. Members ..41. Rolled Wide-Flange Members ..42. Built-up Members ..42a. Built-up Beams ..42b. Built-up Columns ..53. Hollow Structural Sections (HSS) .. connection Design Parameters ..71. Resistance Factors ..72. Plastic Hinge Location ..73. Probable Maximum Moment at Plastic Hinge ..74. Continuity Plates .. Panel Zones .. Protected Zone ..8 CHAPTER 3. WELDING REQUIREMENTS .. Filler Metals .. Welding Procedures .. Backing at Beam-to-Column and Continuity Plate-to-Column Joints ..101. Steel Backing at Continuity Plates.

7 102. Steel Backing at Beam Bottom Flange ..103. Steel Backing at Beam Top Flange ..104. Prohibited Welds at Steel Backing ..115. Nonfusible Backing at Beam Flange-to-Column Joints .. Weld Tabs .. Tack Welds .. Continuity Plates .. Quality Control and Quality Assurance ..12PC SPEC 510/7/16 11:40 AMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel OF CONTENTSCHAPTER 4. BOLTING REQUIREMENTS .. Fastener Assemblies .. Installation Requirements .. Quality Control and Quality Assurance ..13 CHAPTER 5. REDUCED BEAM SECTION (RBS) MOMENT connection .. General .. Systems .. Prequalification Limits ..141. Beam Limitations ..142. Column Limitations.

8 Column-Beam Relationship Limitations .. Beam Flange-to-Column Flange Weld Limitations .. Beam Web-to-Column Flange connection Limitations .. Fabrication of Flange Cuts .. Design Procedure ..18 CHAPTER 6. BOLTED UNSTIFFENED AND STIFFENED EXTENDED END-PLATE MOMENT Connections .. General .. Systems .. Prequalification Limits ..221. Beam Limitations ..222. Column Limitations .. Column-Beam Relationship Limitations .. Continuity Plates .. Bolts .. connection Detailing ..241. Gage.. 242. Pitch and Row Spacing ..243. End-Plate Width ..264. End-Plate Stiffener ..265. Finger Shims ..276. Welding Details .. Design Procedure ..291. End-Plate and Bolt Design ..292. Column-Side Design ..34 CHAPTER 7. BOLTED FLANGE PLATE (BFP) MOMENT connection .

9 General .. Systems .. Prequalification Limits ..401. Beam Limitations ..402. Column Limitations ..40PC SPEC 610/7/16 11:40 AMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel OF Column-Beam Relationship Limitations .. connection Detailing ..411. Plate Material Specifications ..412. Beam Flange Plate Welds ..413. Single-Plate Shear connection Welds ..414. Bolt Requirements ..415. Flange Plate Shims .. Design Procedure ..42 CHAPTER 8. WELDED UNREINFORCED FLANGE-WELDED WEB (WUF-W)MOMENT connection .. General .. Systems .. Prequalification Limits ..461. Beam Limitations ..462. Column Limitations .. Column-Beam Relationship Limitations.

10 Beam Flange-to-Column Flange Welds .. Beam Web-to-Column connection Limitations .. Design Procedure ..49 CHAPTER 9. KAISER BOLTED BRACKET (KBB) MOMENT connection .. General .. Systems .. Prequalification Limits ..531. Beam Limitations ..532. Column Limitations ..543. Bracket Limitations .. Column-Beam Relationship Limitations .. Bracket-to-Column Flange connection Limitations .. Bracket-to-Beam Flange connection Limitations .. Beam Web-to-Column connection Limitations .. connection Detailing .. Design Procedure ..57 CHAPTER 10. CONXTECH CONXL MOMENT connection .. General .. Systems .. Prequalification Limits ..681. Beam Limitations ..682. Column Limitations ..683. Collar Limitations ..69PC SPEC 710/7/16 11:40 AMPrequalified Connections for Special and IntermediateSteel Moment Frames for Seismic Applications, May 12, 2016 American Institute of Steel OF Collar connection Limitations.