Seismic Provisions Aisc 2005

ANSI/AISC 341-05 ANSI/AISC 341s1-05 An American National Standard

Seismic Provisions for Structural Steel Buildings
Including Supplement No. 1
Seismic Provisions for Structural Steel Buildings dated March 9, 2005 and Supplement No. 1 dated November 16, 2005

Supersedes the Seismic Provisions for Structural Steel Buildings dated May 21, 2002 and all previous versions Approved by the AISCCommittee on Specifications and issued by the AISC Board of Directors

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

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Copyright © 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 thepublisher.

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 andverification of its accuracy, suitability, and applicability by a licensed engineer, architect or other professional. 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, Inc., or of any other person named herein, that this information is suitable for any general or particular use or of freedomfrom 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 American Institute ofSteel Construction, Inc. 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.

Second Printing October 2006

Seismic Provisions for Structural Steel Buildings, March 9, 2005, incl. Supplement No. 1 AMERICAN INSTITUTE OF STEEL CONSTRUCTION, INC.

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PREFACE
This Preface is not apart of ANSI/AISC 341-05, Seismic Provisions for Structural Steel Buildings, but is included for informational purposes only. The AISC Specification for Structural Steel Buildings (ANSI/AISC 360-05) is intended to cover common design criteria. Accordingly, it is not feasible for it to also cover all of the special and unique problems encountered within the full range of structural design practice.This document, the AISC Seismic Provisions for Structural Steel Buildings (ANSI/AISC 34105) with Supplement No. 1 (ANSI/AISC 341s1-05) (hereafter referred to as the Provisions) is a separate consensus standard that addresses one such topic: the design and construction of structural steel and composite structural steel/reinforced concrete building systems for highseismic applications. Supplement No.1 consists of modifications made to Part I, Section 14 of the Provisions after the initial approval had been completed. These Provisions are presented in two parts: Part I is intended for the design and construction of structural steel buildings, and is written in a unified format that addresses both LRFD and ASD; Part II is intended for the design and construction of composite structural steel/reinforced concrete buildings, and is written to address LRFD only. In addition, seven mandatory appendices, a list of Symbols, and Glossary are part of this document. Terms that appear in the Glossary are generally italicized where they first appear in a sub-section, throughout these Provisions. A nonmandatory Commentary with background information is also provided. The previous edition of the...