ACI 355.4M-2011 Qualification of Post-Installed Adhesive Anchors in Concrete (ACI 355.4M-11) and Commentary.pdf

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1、ACI 355.4M-11Reported by ACI Committee 355Qualification of Post-Installed AdhesiveAnchors in Concrete (ACI 355.4M-11)An ACI Standardand CommentaryQualification of Post-Installed Adhesive Anchorsin Concrete (ACI 355.4M-11) and CommentaryFirst PrintingSeptember 2011ISBN 978-0-87031-409-4American Concr

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11、ntacting ACI.Most ACI standards and committee reports are gathered together in the annually revised ACI Manual of ConcretePractice (MCP).American Concrete Institute38800 Country Club DriveFarmington Hills, MI 48331U.S.A.Phone: 248-848-3700Fax: 248-848-3701www.concrete.orgACI 355.4M-11 supersedes ACI

12、 355.4-10 (provisional), was adopted July 5, 2011, andpublished September 2011.Copyright 2011, American Concrete Institute.All rights reserved including rights of reproduction and use in any form or by anymeans, including the making of copies by any photo process, or by electronic ormechanical devic

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15、tute disclaims any and allresponsibility for the stated principles. The Institute shall not beliable for any loss or damage arising therefrom.Reference to this document shall not be made in contractdocuments. If items found in this document are desired by theArchitect/Engineer to be a part of the co

16、ntract documents, theyshall be restated in mandatory language for incorporation bythe Architect/Engineer.Qualification of Post-Installed Adhesive Anchorsin Concrete (ACI 355.4M-11) and CommentaryAn ACI StandardReported by ACI Committee 355ACI 355.4M-11This standard prescribes testing programs and ev

17、aluation requirements forpost-installed adhesive anchors intended for use in concrete under thedesign provisions of ACI 318M. Testing and assessment criteria areprovided for various conditions of use, including seismic loading;sustained loading; aggressive environments; reduced and elevated temper-a

18、tures; and for determining whether anchors are acceptable for use inuncracked concrete only, or acceptable for service both in cracked anduncracked concrete. Criteria are provided for establishing the characteristicbond strength, reductions for adverse conditions, and the anchor categoryand associat

19、ed job-site quality control requirements.The official version of this ACI document uses inch-pound units. Aconversion of an ACI document into SI units is for the convenience ofusers. Care has been taken to ensure that the conversion is correct;however, ACI does not guarantee its accuracy. Official i

20、nterpretation ofthis ACI document shall be based only on the U.S. customary units.Keywords: adhesive anchors; cracked concrete; fasteners; post-installedanchors; qualification procedures; uncracked concrete.CONTENTSChapter 1Introduction and scope, p. 31.1Introduction1.2Scope1.3Units of measurementCh

21、apter 2Notation and definitions, p. 52.1Notation2.2DefintionsChapter 3General requirements, p. 113.1Test organization3.2Variables and options3.3Test requirements3.4Assessment for multiple anchor element types foradhesive anchors3.5Assessment for alternate drilling methodsTarek S. Aziz Werner A. F. F

22、uchs Richard E. Klingner Jake OlsenRanjit L. Bandyopadhyay*Branko Galunic Anthony J. Lamanna Alan D. PricePeter J. Carrato Brian C. Gerber Harry B. Lancelot III John F. SilvaHarry A. Chambers Michael Gong Nam-Ho Lee Patrick J. E. SullivanRonald A. Cook Herman L. Graves III Lee W. Mattis Harry Wiewel

23、Rolf Eligehausen Christopher Heinz Robert R. McGlohn Richard E. WollmershauserSam S. Eskildsen Bruce I. Ireland*Deceased.The committee would like the recognize Christopher LaVine for his significant contributions to this document.Donald F. MeinheitChairJ. Bret TurleySecretaryConsulting membersEdwin

24、G. Burdette Paul R. HollenbachRobert W. Cannon Conrad PaulsonNeil M. Hawkins Dan R. StoppenhagenA U.S. Customary version of this document(ACI 355.4-11) is available at www.concrete.org2 QUALIFICATION OF POST-INSTALLED ADHESIVE ANCHORS IN CONCRETE (ACI 355.4M-11) AND COMMENTARYAmerican Concrete Insti

25、tute Copyrighted Materialwww.concrete.orgChapter 4Requirements for test specimens, anchor installation, and testing, p. 174.1Testing by ITEA and manufacturer4.2Test samples4.3Concrete for test members4.4Requirements for test members4.5Anchor installation4.6Drill bit requirements4.7Test methods4.8Tes

26、ts in cracked concrete4.9Changes to productsChapter 5Requirements for anchor identification, p. 245.1Basic requirements5.2Verification5.3Fingerprinting adhesive materials5.4PackagingChapter 6Reference tests, p. 246.1Purpose6.2Required tests6.3Conduct of testsChapter 7Reliability tests, p. 257.1Purpo

27、se7.2Required tests7.3Conduct of tests7.4Reliability tests7.5Sensitivity to hole cleaningdry concrete7.6Sensitivity to hole cleaningsaturated concrete7.7Sensitivity to hole cleaningwater-filled hole7.8Sensitivity to hole cleaningsubmerged concrete7.9Sensitivity to mixing effort7.10Sensitivity to ins

28、tallation in water-saturated concrete7.11Sensitivity to installation in water-filled holesaturated concrete7.12Sensitivity to installation in submerged concrete7.13Sensitivity to crack widthlow-strength concrete7.14Sensitivity to crack widthhigh-strength concrete7.15Sensitivity to crack width cyclin

29、g7.16Sensitivity to freezing and thawing7.17Sensitivity to sustained loading at standard andmaximum long-term temperature7.18Sensitivity to installation direction7.19Torque testChapter 8Service-condition tests, p. 328.1Purpose8.2Required tests8.3Conduct of tests8.4Tension tests in uncracked and crac

30、ked concrete8.5Tension tests at elevated temperature8.6Tension tests with decreased installation temperature8.7Establishment of cure time at standard temperature8.8Durability assessment8.9Verification of full concrete capacity in a corner8.10Determination of minimum spacing and edgedistance to precl

31、ude splitting8.11Tests to determine shear capacity of anchor elementswith nonuniform cross section8.12Simulated seismic tension tests8.13Simulated seismic shear testsChapter 9Supplemental tests, p. 389.1Round-robin tests9.2Tests to determine minimum member thicknessChapter 10Assessment of anchors, p

32、. 3910.1Analysis of data10.2Normalization of anchor capacities for measuredconcrete bond and steel strengths10.3Establishing characteristic values10.4Assessment of characteristic tension capacityassociated with concrete breakout and pullout10.5Assessment of steel tension capacity10.6Assessment of st

33、eel shear capacity10.7Assessment of minimum member thickness10.8Assessment of maximum tightening torque10.9Assessment of behavior under crack cycling10.10Assessment of freezing-and-thawing behavior10.11Assessment of sustained load behavior10.12Assessment of performance associated withinstallation di

34、rection10.13Assessment of performance at elevated temperature10.14Assessment of performance with decreasedinstallation temperature10.15Assessment for cure time at standard temperature10.16Assessment of durability requirement10.17Assessment of performance in corner test10.18Assessment of performance

35、in minimum spacingand edge distance test10.19Assessment of performance under seismic tension10.20Assessment of performance under seismic shear10.21Establishment of hole cleaning procedures10.22Establishment of on-site quality control andinstallation conditions10.23Assessment based on installation an

36、d environmentalconditions10.24Assessment for fire exposureChapter 11Data presentation, p. 5111.1General requirements11.2Contents of evaluation report11.3Data presentationChapter 12Independent testing and evaluation agency requirements, p. 5312.1General requirements12.2CertificationChapter 13Quality

37、control requirements, p. 5413.1Quality assurance program13.2Quality control manuals13.3Special inspectionChapter 14References, p. 5414.1Referenced standards and reports14.2Cited referencesQUALIFICATION OF POST-INSTALLED ADHESIVE ANCHORS IN CONCRETE (ACI 355.4M-11) AND COMMENTARY 3American Concrete I

38、nstitute Copyrighted Materialwww.concrete.orgCHAPTER 1INTRODUCTION1.1IntroductionThis standard prescribes testing and evaluation requirementsfor post-installed adhesive anchor systems intended for usein concrete under the provisions of ACI 318M. Criteria areseparately prescribed to determine the sui

39、tability of adhesiveanchors used in uncracked concrete only, or in both crackedand uncracked concrete. Criteria are prescribed to determinethe design parameters and performance category for adhesiveanchors. Included are assessments of the adhesive anchorsystem for bond strength, reliability, service

40、 conditions, andquality control. Special inspection (13.3) is required duringanchor installation as noted in 10.22. Table 1.1 provides anoverview of the scope.R1.1 This standard prescribes the testing programsrequired to qualify post-installed adhesive anchor systemsfor design in accordance with ACI

41、 318M, Appendix D.Appendix D requires that anchors be tested either for useexclusively in uncracked concrete or for use in cracked anduncracked concrete conditions, whereby it is understood thatthe presence of cracking may occur at any time over theservice life of the anchors. Test and assessment cr

42、iteria areprovided for various conditions, including loads (seismicand sustained), environmental with regard to humidity andtemperature, and determination if anchors are acceptablefor use in cracked or uncracked concrete. Refer to Cook andKonz (2001) for a review of factors that influence adhesivean

43、chor behavior. Refer to Fuchs et al. (1995) for backgroundon the concrete breakout design model and to Eligehausen etal. (2006) and Zamora et al. (2003) for a discussion of bondmodels for adhesive and grouted anchors. For a discussionof issues associated with the qualification and design ofsystems f

44、or post-installed reinforcing bars, refer to Spieth etal. (2001).1.2ScopeThis standard applies only to post-installed adhesiveanchors as defined herein.R1.2 Adhesive anchors resist tension loads with a combi-nation of adhesion and mechanical bond (micro-interlock).Different anchor designs and adhesi

45、ve types may exhibit arange of performance characteristics. In particular, thesensitivity of adhesive anchors to variations in installationand service-condition parameters (such as hole cleaning,installation orientation, and cracked concrete characteristics)may vary widely from each system. ACI 318M

46、 addresses thissituation by matching capacity reduction factors to anchorperformance categories that are, in turn, establishedthrough a series of reliability tests.1.2.1 This standard applies to anchors with a diameter daof 6 mm or larger. The drilled hole shall be approximatelycylindrical with a di

47、ameter do 1.5da. This standard alsoapplies to anchors with an anchor embedment depth hefnotless than four diameters (4da), or 41 mm, and an embedmentdepth not exceeding 20da.R1.2.1 The minimum diameter of 6 mm is based onpractical considerations regarding the limit of structuralanchor applications.

48、The upper limit on the ratio of holediameter to anchor element diameter provides a demarcationbetween conditions where a single bond strength can be usedto evaluate anchor strength and conditions where bondstrengths at both the anchor interface and concrete interfacemust be determined to evaluate an

49、chor strength. In addition,the value of 1.5dais based on consideration of typical practicewhereby most organic adhesives are used with thin bondlines to limit both adhesive shrinkage and creep of theanchor when under load. The design method deemed tosatisfy the anchor design requirements of ACI 318M,Appendix D, is based on an analysis of an anchor databasewith a maximum diameter of 50.8 mm. While ACI 355.4Mgives no limitations on maximum anchor diameter, foranchors beyond