1、Designation:D320074(Reapproved 2022)Standard Specification and Test Method forEstablishing Recommended Design Stresses for RoundTimber Construction Poles1This standard is issued under the fixed designation D3200;the number immediately following the designation indicates the year oforiginal adoption
2、or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the physical characteristics ofround timber construction p
3、oles to be used either treated oruntreated.1.2 This test method covers basic principles for establishingrecommended design stress values for round timber construc-tion poles that are applicable to the quality described.1.3 The values stated in inch-pound units are to be regardedas standard.The value
4、s given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establis
5、h appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for t
6、heDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D25 Specification for Round Timber PilesD2899 Practice for Establishing Allowable Stresses forRound Timber Pi
7、les3.Terminology Definition3.1 construction polespoles which are used as principleload-carrying components of a building.4.Physical Requirements4.1 The round timber construction poles shall be as speci-fied in Specification D25,with the following exception:4.1.1 In place of 7.1 of Specification D25,
8、the followingshall apply:The tip circumference shall be specified.The correspondingbutt circumference shall not be less than that specified in Table1 of this standard.5.Design Stresses5.1 Methods for establishing design stresses for roundtimber construction poles shall follow those presented inPract
9、ice D2899.6.Keywords6.1 design;poles;stresses;timber1This specification and test method is under the jurisdiction of ASTM Commit-tee D07 on Wood and is the direct responsibility of Subcommittee D07.04 on Poleand Pile Products.Current edition approved Aug.1,2022.Published August 2022.Originallyapprov
10、ed in 1974.Last previous edition approved in 2017 as D3200 74(2017).DOI:10.1520/D3200-74R22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summar
11、y page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for th
12、eDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users
13、of this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five
14、 years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical commi
15、ttee,which you may attend.If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959
16、,United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(www.astm.org).Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center,222Rosewood Drive,Danvers,MA 01923,Tel:(978)646-2600;http:/ 1 Specified Tip Circumference With Corresponding Minimum Butt CircumferenceTip circumference,r
