Ansi/aisc 360-05 an american national standard

ANSI/AISC 360-05 An American National Standard

Specification for Structural Steel Buildings
March 9, 2005

Supersedes the Load and Resistance Factor Design Specification for Structural Steel Buildings dated December 27, 1999, the Specification for Structural Steel Buldings— Allowable Stress Design and Plastic Design dated June 1, 1989, including Supplement No. 1, the Specification forAllowable Stress Design of Single-Angle Members dated June 1, 1989, the Load and Resistance Factor Design Specification for SingleAngle Members dated November 10, 2000, and the Load and Resistance Factor Design Specification for the Design of Steel Hollow Structural Sections dated November 10, 2000, and all previous versions of these specifications. Approved by the AISC Committee on Specifications andissued by the AISC Board of Directors

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

Copyright c 2005 by American Institute of Steel Construction, Inc. All rights reserved. This book or any part thereof must not be reproduced in any form without the written permission of the publisher. The information presented in thispublication 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. Thepublication 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 ofthis edition. Printed in the United States of America

Specification for Structural Steel Buildings, March 9, 2005 AMERICAN INSTITUTE OF STEEL CONSTRUCTION, INC.

DEDICATION

Professor Lynn S. Beedle

This edition of the AISC Specification is dedicated to the memory of Dr. Lynn S. Beedle, University Distinguished Professor at Lehigh University. Dr. Beedle served as a faculty member at LehighUniversity for 41 years and won a very large number of professional and educational awards, including the 1973 T.R. Higgins Award and the 2003 Geerhard Haaijer Award from AISC. He was a major contributor to several editions of the AISC Specification and a long-time member of the AISC Committee on Specifications. He was instrumental in the development of plastic design methodologies and itsimplementation into the AISC Specification. He was Director of the Structural Stability Research Council for 25 years, and in that role fostered understanding of various stability problems and helped develop rational design provisions, many of which were adopted in the AISC Specifications. In 1969, he founded the Council on Tall Buildings and Urban Habitat and succeeded in bringing together the disciplinesof architecture, structural engineering, construction, environment, sociology and politics, which underlie every major tall building project. He was actively involved in this effort until his death in late 2003 at the age of 85. His contributions to the design and construction of steel buildings will long be remembered by AISC, the steel industry and the structural engineering profession...