1、Designation:D320074(Reapproved 2017)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 This standard does not purport to address all of thesafety concerns,if any,as
4、sociated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally rec
5、ognized principles on standard-ization established in the Decision on Principles for theDevelopment 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 R
6、ound Timber PilesD2899 Practice for Establishing Allowable Stresses forRound Timber Piles3.Terminology Definition3.1 construction polesthose poles which are used asprinciple load-carrying components of a building.4.Physical Requirements4.1 The round timber construction poles shall be as speci-fied i
7、n Specification D25,with the following exception:4.1.1 In place of 7.1 of Specification D25,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 establis
8、hing design stresses for roundtimber construction poles shall follow those presented inMethod 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 Polean
9、d Pile Products.Current edition approved Oct.1,2017.Published October 2017.Originallyapproved in 1974.Last previous edition approved in 2012 as D3200 74(2012).DOI:10.1520/D3200-74R17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org
10、.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary 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 internationall
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16、hrough 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,required min,in.(mm)16(406)19(483)22(559)25(635)28(711)31(787)35(889)38(965)Length,ft(mm)Minimum Circumference 3 ft(914 mm)from Butt,in.(mm)10(3048)18.5(469.9)21.5(546.1)24.5(622.3)27.5(698.5)30.5(774.7)33.5(8
