AISC 358-10 Prequalified conections PDF

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conexiones precalificadas...

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9.2–i

ANSI/AISC 358-10 ANSI/AISC 358s1-11 An American National Standard

Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications Including Supplement No. 1 2010 (includes 2011 supplement) Supersedes ANSI/AISC 358-05 and ANSI/AISC 358s1-09 Approved by the AISC Connection Prequalification Review Panel and issued by the AISC Board of Directors

AMERICAN INSTITUTE OF STEEL CONSTRUCTION One East Wacker Drive, Suite 700 Chicago, Illinois 60601-1802

9.2–ii

AISC © 2011 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 and is used under license. The information presented in this publication has been prepared in accordance with recognized engineering principles and is for general information only. 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 professional engineer, designer or architect. The publication of the material contained herein is not intended as a representation or warranty, on the part of the American Institute of Steel Construction 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. Anyone making use of this information assumes all liability arising from such use. Caution must be exercised when relying upon other specifications and codes 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 Institute 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, 2010, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION

9.2–iii

PREFACE

(This Preface is not part of ANSI/AISC 358-10, Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, but is included for informational purposes only.) This edition of the Standard was developed using a consensus process in concert with the Specification for Structural Steel Buildings (ANSI/AISC 360-10) and Seismic Provisions for Structural Steel Buildings (ANSI/AISC 341-10). This Standard is incorporated by reference in the Seismic Provisions. The most significant modification to this edition of the Standard is the incorporation of three prequalified connections into the body of the standard that were previously part of a supplement (Chapters 7, 8, and 9). It is anticipated that future supplements will be issued as additional moment connections become prequalified. This printing includes Supplement No. 1 to Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications (ANSI/AISC 358s1-11) which consists of the material in Chapter 10. The Supplement was finalized shortly after the completion of this Standard. The Symbols, Glossary, and Appendices to this Standard are an integral part of the Standard. A non-mandatory Commentary has been prepared to provide background for the provisions of the Standard and the user is encouraged to consult it. Additionally, non-mandatory User Notes are interspersed throughout the Standard to provide concise and practical guidance in the application of the provisions. The reader is cautioned that professional judgment must be exercised when data or recommendations in this Standard are applied, as described more fully in the disclaimer notice preceding the Preface. This Standard was approved by the AISC Connection Prequalification Review Panel (CPRP): Ronald O. Hamburger, Chairman Kevin Moore, Vice-Chairman Richard Apple Scott F. Armbrust Michael L. Cochran Theodore L. Droessler Michael D. Engelhardt Louis F. Geschwindner Gary Glenn W. Steven Hofmeister Gregory H. Lynch

Brett R. Manning Thomas M. Murray Charles W. Roeder Paul A. Rouis Thomas A. Sabol Robert E. Shaw, Jr. James A. Stori James A. Swanson Chia-Ming Uang Behnam Yousefi Keith A. Grubb, Secretary

Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, 2010, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION

9.2–iv

PREFACE

The CPRP gratefully acknowledges the following corresponding members and staff for their contributions to this document: Scott M. Adan Leigh Arber David Bleiman Helen Chen Charles J. Carter Cynthia J. Duncan Willian C. Gibb Leonard M. Joseph

Raymond Kitasoe Roberto T. Leon James O. Malley Duane K. Miller Steven E. Pryor Gian Andrea Rassati James M. Ricles C. Mark Saunders

Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, 2010, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION

9.2–v

TABLE OF CONTENTS

SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–xiii GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–xix STANDARD CHAPTER 1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–1 1.1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–1 1.2. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–1 1.3. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–2 CHAPTER 2. DESIGN REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–3 2.1. Special and Intermediate Moment Frame Connection Types . . . . . . . . . . . 9.2–3 2.2. Connection Stiffness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–3 2.3. Members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–3 1. Rolled Wide-Flange Members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–3 2. Built-up Members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–3 2a. Built-up Beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–4 2b. Built-up Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–4 2.4. Connection Design Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–5 1. Resistance Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–5 2. Plastic Hinge Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–5 3. Probable Maximum Moment at Plastic Hinge . . . . . . . . . . . . . . . . . . 9.2–6 4. Continuity Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–6 2.5. Panel Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–6 2.6. Protected Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–6 CHAPTER 3. WELDING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 3.1. Filler Metals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 3.2. Welding Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 3.3. Backing at Beam-to-Column and Continuity Plate-to-Column Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 1. Steel Backing at Continuity Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 2. Steel Backing at Beam Bottom Flange . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 3. Steel Backing at Beam Top Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–7 4. Prohibited Welds at Steel Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–8 5. Nonfusible Backing at Beam Flange-to-Column Joints . . . . . . . . . . . 9.2–8 3.4. Details and Treatment of Weld Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–8 3.5. Tack Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–8 3.6. Continuity Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–9 3.7. Quality Control and Quality Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–9 Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, 2010, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION

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TABLE OF CONTENTS

CHAPTER 4. BOLTING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–10 4.1. Fastener Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–10 4.2. Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–10 4.3. Quality Control and Quality Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–10 CHAPTER 5. REDUCED BEAM SECTION (RBS) MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–11 5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–11 5.2 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–11 5.3. Prequalification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–11 1. Beam Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–11 2. Column Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–12 5.4. Column-Beam Relationship Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–13 5.5. Beam Flange-to-Column Flange Weld Limitations . . . . . . . . . . . . . . . . . 9.2–13 5.6. Beam Web-to-Column Flange Connection Limitations . . . . . . . . . . . . . . 9.2–13 5.7. Fabrication of Flange Cuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–14 5.8. Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–15 CHAPTER 6. BOLTED UNSTIFFENED AND STIFFENED EXTENDED END-PLATE MOMENT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–19 6.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–19 6.2. Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–19 6.3. Prequalification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–20 6.4. Beam Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–20 6.5. Column Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–21 6.6. Column-Beam Relationship Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–22 6.7. Continuity Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–22 6.8. Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–22 6.9. Connection Detailing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–22 1. Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–22 2. Pitch and Row Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–22 3. End-Plate Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–24 4. End-Plate Stiffener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–24 5. Finger Shims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–25 6. Composite Slab Detailing for IMF . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–25 7. Welding Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–26 6.10. Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–27 1. End-Plate and Bolt Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–27 2. Column-Side Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–33 CHAPTER 7. BOLTED FLANGE PLATE (BFP) MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–39 7.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–39 7.2. Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–39 Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, 2010, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION

TABLE OF CONTENTS

7.3.

7.4. 7.5.

7.6.

9.2–vii

Prequalification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–40 1. Beam Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–40 2. Column Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–40 Column-Beam Relationship Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–41 Connection Detailing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–41 1. Plate Material Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–41 2. Beam Flange Plate Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–41 3. Single-Plate Shear Connection Welds . . . . . . . . . . . . . . . . . . . . . . . . 9.2–41 4. Bolt Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–41 5. Flange Plate Shims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–42 Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–42

CHAPTER 8. WELDED UNREINFORCED FLANGE-WELDED WEB (WUF-W) MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–46 8.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–46 8.2. Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–46 8.3. Prequalification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–46 1. Beam Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–46 2. Column Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–47 8.4. Column-Beam Relationship Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–48 8.5. Beam Flange-to-Column Flange Welds . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–48 8.6. Beam Web-to-Column Connection Limitations . . . . . . . . . . . . . . . . . . . . 9.2–48 8.7. Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–50 CHAPTER 9. KAISER BOLTED BRACKET (KBB) MOMENT CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–52 9.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–52 9.2. Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–53 9.3. Prequalification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–53 1. Beam Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–53 2. Column Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–54 3. Bracket Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–55 9.4. Column-Beam Relationship Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–55 9.5. Bracket-to-Column Flange Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–55 9.6. Bracket-to-Beam Flange Connection Limitations . . . . . . . . . . . . . . . . . . 9.2–56 9.7. Beam Web-to-Column Connection Limitations . . . . . . . . . . . . . . . . . . . . 9.2–57 9.8. Connection Detailing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–57 9.9. Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–58 CHAPTER 10. CONXTECH CONXL MOMENT CONNECTION . . . . . . . . . 9.2–64 10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–64 10.2 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–67 10.3 Prequalification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–68 1. Beam Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–68 Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, 2010, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION

9.2–viii

10.4 10.5 10.6 10.7 10.8 10.9

TABLE OF CONTENTS

2. Column Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–68 3. Collar Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–69 Collar Connection Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–69 Beam Web-to-Collar Connection Limitations . . . . . . . . . . . . . . . . . . . . . 9.2–71 Beam-Flange-to-Collar Flange Welding Limitations . . . . . . . . . . . . . . . . 9.2–71 Column-Beam Relationship Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–72 Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–72 Part Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–77

APPENDIX A. CASTING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–84 A1. Cast Steel Grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–84 A2. Quality Control (QC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–84 1. Inspection and Nondestructive Testing Personnel . . . . . . . . . . . . . . 9.2–84 2. First Article Inspection (FAI) of Castings . . . . . . . . . . . . . . . . . . . . . 9.2–84 3. Visual Inspection of Castings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–84 4. Nondestructive Testing (NDT) of Castings . . . . . . . . . . . . . . . . . . . . 9.2–84 4a. Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–84 4b. Required NDT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–85 5. Weld Repair Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–85 6. Tensile Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2–85 7. Charpy ...