TS-1_Edtn_2006.pdf

AN AMERICAN NATIO NAL STANDARDSteel Stacks ASME STS-12006(Revision of ASME STS-12000)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME STS-12006(Revision of ASME STS-12000)Steel StacksAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:October 13,2006The 2006 edition of this Standard is being issued with an automatic addenda subscription service.The use of addenda allows revisions made in response to public review comments or committeeactions to be published as necessary.This Standard will be revised when the Society approves theissuance of a new edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard.The interpretations will be included with the above addenda service.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2006 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.iiiCONTENTSForeword.ivCommittee Roster.vCorrespondence with the Steel Stacks Committee.viIntroduction.vii1Mechanical Design.12Materials.43Linings and Coatings.74Structural Design.135Dynamic Wind Loads.206Access and Safety.237Electrical.288Fabrication and Erection.299Inspection and Maintenance.3110References.33Figures6.2.6-1Example of the General Construction of Cages.246.2.6-2Minimum Ladder Clearances.256.3.6Ladder Dimensions,Support Spacing,and Side Clearances.266.3.8Landing Platform Dimensions.27Tables4.4.6Factors of Safety.164.4.7Minimum Structural Plate Thickness and Maximum Stiffener Spacing.164.10.1.3Cable Selection Criteria.185.2.1Representative Structural Damping Values(?s).21Mandatory AppendixIStructural Design.35Nonmandatory AppendicesAMechanical Design.46BMaterials for Ambient and Elevated Temperature Service.59CLinings and Coatings.75DStructural Design.79EExample Calculations.86FConversion Factors:U.S.Customary to SI(Metric).97Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDIn early 1978,the American Society of Mechanical Engineers was approached by a groupinterested in formulating a standard for the design,fabrication,and erection of steel stacks andtheir appurtenances.They felt there was a need for such a code to establish a better level ofstandardization in the industry and for safeguarding the community.Because of the particularnature of stacks and their susceptibility to failures due to wind and seismic-induced vibrations,along with corrosion and erosion,the design process is a complex one.Additionally,recentregulations by the Environmental Protection Agency