ACI 562M-2013 Code Requirements for Evaluation Repair and Rehabilitation of Concrete Buildings (ACI 562M-13) and Commentary.pdf

1、ACI 562M-13Code Requirements for Evaluation,Repair, and Rehabilitation ofConcrete Buildings (ACI 562M-13)and CommentaryAn ACI StandardReported by ACI Committee 562(metric)First PrintingMay 2013Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings and CommentaryCopyright

2、by the American Concrete Institute, Farmington Hills, MI. All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ACI.The technical committees responsib

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9、e document and must comply with all applicable laws and regulations, including but not limited to, United States Occupational Safety and Health Administration (OSHA) health and safety standards.Participation by governmental representatives in the work of the American Concrete Institute and in the de

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11、s and committee reports are gathered together in the annually revised ACI Manual of Concrete Practice (MCP).American Concrete Institute38800 Country Club DriveFarmington Hills, MI 48331U.S.A.Phone: 248-848-3700Fax: 248-848-3701www.concrete.orgISBN-13: 978-0-87031-813-9ISBN: 0-87031-813-6American Con

12、crete InstituteAdvancing concrete knowledgeACI 562M-13Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings (ACI 562M-13) and CommentaryAn ACI StandardReported by ACI Committee 562Lawrence F. Kahn, Chair Keith E. Kesner, SecretaryTarek AlkhrdajiJames Peter BarlowF. Micha

13、el BartlettRandal M. BeardCasimir BognackiEric L. EdelsonGarth J. FallisPaul E. GaudetteFred R. GoodwinCarl J. LaroscheMarjorie M. LynchTracy D. MarcotteJames E. McDonaldMyles A. MurrayAntonio NanniKelly M. PageJay H. PaulRandall W. PostonHalil SezenConstadino SirakisGene R. Stevens Voting subcommit

14、tee membersGreggrey G. CohenKevin ConroyVenkatesh Kumar R. KodurYasser KoranyAndrzej S. NowakPredrag L. PopovicJ. Gustavo TumialanConsulting memberPeter EmmonsThis code provides minimum requirements for the evaluation, repair, rehabilitation, and strengthening of existing concrete build-ings and, wh

15、ere applicable, nonbuilding structures.This code does not provide complete design procedures or construc-tion means and methods. The code comprises both prescriptive and performance requirements. Commentary is provided for both the prescriptive and performance requirements, and is intended to provid

16、e guidance to the licensed design professional and refer-enced sources for additional information on the material presented in the code provisions.The code and commentary is intended for use by individuals who are competent to evaluate the significance and limitations of its content and recommendati

17、ons, and who will accept responsibility for application of the material it contains.The materials, processes, quality control measures, and inspections described in this code should be tested, monitored, or performed as applicable only by individuals holding the appropriate ACI Certifi-cations or eq

18、uivalent.CONTENTSIntroduction, p. 3Chapter 1General, p. 51.1Scope, p. 51.2Applicability, p. 61.3Jurisdictions without a general existing building code, p. 71.4Administration and enforcement, p. 81.5Responsibilities, p. 81.6Contract documents, p. 91.7Maintenance and monitoring, p. 10Chapter 2Notation

19、 and definitions, p. 112.1Notation, p. 112.2Definitions, p. 111ACI 562M-13 supersedes ACI 562-12 (provisional), was adopted February 20, 2013, and was published May 2013.Copyright 2013, American Concrete Institute.All rights reserved including rights of reproduction and use in any form or by any mea

20、ns, including the making of copies by any photo process, or by electronic or mechanical device, printed, written, or oral, or recording for sound or visual reproduc-tion or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors

21、.Chapter 3Referenced standards, p. 15Chapter 4Basis for compliance, p. 174.1General, p. 174.2Compliance method, p. 174.3Preliminary evaluation, p. 17Chapter 5Loads, load combinations, and strength reduction factors, p. 195.1General, p. 195.2nullLoad factors and load combinations, p. 195.3Strength re

22、duction factors for repair design, p. 205.4Strength reduction factors for evaluation, p. 205.5Load combinations for structures repaired with external reinforcing systems, p. 21Chapter 6Evaluation and analysis, p. 226.1Requirements for structural evaluation, p. 226.2Structural assessment, p. 226.3Mat

23、erial properties, p. 236.4Test methods to determine or confirm material prop-erties, p. 266.5Structural analysis of existing structures, p. 296.6Structural serviceability, p. 306.7Structural analysis for repair design, p. 306.8Strength evaluation by load testing, p. 31Chapter 7Design of structural r

24、epairs, p. 327.1General, p. 327.2Strength and serviceability, p. 327.3Behavior of repaired systems, p. 327.4Bond, p. 347.5Materials, p. 357.6Design and detailing considerations, p. 367.7Repair using supplemental post-tensioning, p. 397.8Repair using fiber-reinforced polymer (FRP) composites, p. 407.

25、9Performance under fire and elevated temperatures, p. 41Chapter 8Durability, p. 448.1General, p. 448.2Cover, p. 458.3Cracks, p. 468.4Corrosion and deterioration of reinforcement and metallic embedments, p. 478.5Surface treatments and coatings, p. 49Chapter 9Construction, p. 509.1Stability and tempor

26、ary shoring requirements, p. 509.2Temporary conditions, p. 519.3Environmental issues, p. 51Chapter 10Quality assurance, p. 5210.1Inspection, p. 5210.2Testing of repair materials, p. 5310.3Construction observations, p. 54Chapter 11Commentary references, p. 55American Concrete Institute Copyrighted Ma

27、terialwww.concrete.org2 CODE REQUIREMENTS FOR EVALUATION, REPAIR, AND REHABILITATION OF CONCRETE BUILDINGS (ACI 562M-13)INTRODUCTIONThe purpose of this code is to provide minimum material and design requirements for the evaluation, repair, and rehabilita-tion of structural concrete members.American

28、Concrete Institute Copyrighted Materialwww.concrete.orgCODE REQUIREMENTS FOR EVALUATION, REPAIR, AND REHABILITATION OF CONCRETE BUILDINGS (ACI 562M-13) 3This page intentionally left blank.American Concrete Institute Copyrighted Materialwww.concrete.org4 CODE REQUIREMENTS FOR EVALUATION, REPAIR, AND

29、REHABILITATION OF CONCRETE BUILDINGS (ACI 562M-13)CHAPTER 1GENERAL1.1Scope1.1.1 The scope, purpose, applicability, exclusions, inter-pretation, principles, language, and units of measure are defined in this chapter.1.1.2 The “existing building code” refers to the code adopted by a jurisdiction that

30、regulates existing buildings.1.1.3 The “current building code” refers to the general building code adopted by a jurisdiction that regulates new building design and construction. The “original building code” refers to the general building code adopted by a juris-diction at the time the existing build

31、ing was constructed.1.1.4 The “design basis code” is the general building code or the original building code under which the evaluation, repair, and rehabilitation are implemented. If a jurisdiction has adopted a general existing building code, the design basis code shall be determined in accordance

32、 with Chapter 4. If a jurisdiction has not adopted a general existing building code, 1.3 applies.1.1.5 This code is intended to supplement the evaluation requirements of the general existing building code.1.1.6 This code provides minimum material and design requirements for the repair of damaged, de

33、teriorated, or deficient structural concrete members and systems repaired in accordance with the design basis code. Structural repair includes restoring or increasing one or more of the following: strength, stiffness, ductility, and durability of existing members.1.1.7 This code supplements the gene

34、ral existing building code and shall govern in all matters pertaining to the evalu-ation, repair, rehabilitation, and strengthening of concrete members and concrete sections of composite members in existing concrete buildings, except wherever this code is in conflict with the requirements in the gen

35、eral existing 1.1CScope1.1.2C The general existing building code establishes the limit to which a repair and rehabilitation can occur in accor-dance with the original building code. Above these limits, the repair and rehabilitation is in accordance with the general building code. The general existin

36、g building code in the United States is usually based on the International Existing Building Code (IEBC) developed by the International Code Council (ICC). The IEBC is revised every 3 years and was first published in 2003.1.1.3C The general building code establishes the design requirements for const

37、ruction materials. The general building code in the United States is usually based on the International Building Code (IBC) published by the ICC. The IBC is revised every 3 years and was first published in 2000. For the design and construction of concrete structures, the IBC and legacy codes referen

38、ce ACI 318, Building Code Requirements for Structural Concrete and Commentary, with exceptions and additions.1.1.4C The general existing building code establishes limits to which a repair and rehabilitation can occur in accordance with the original building code. Above these limits, the repair and r

39、ehabilitation is in accordance with the general building code.1.1.5C This code provides evaluation procedures for existing concrete structures. It also provides material and design requirements that allow the licensed design profes-sional to bring existing concrete structures in compliance with buil

40、ding codes written for new construction.American Concrete Institute Copyrighted Materialwww.concrete.orgCODE REQUIREMENTS FOR EVALUATION, REPAIR, AND REHABILITATION OF CONCRETE BUILDINGS (ACI 562M-13) 5CODE COMMENTARYbuilding code. Wherever this code is in conflict with require-ments in other refere

41、nced standards, this code shall govern.1.1.8 Provisions for seismic resistance1.1.8.1 Evaluation of seismic resistance and rehabilita-tion design shall be in accordance with the general existing building code.1.1.8.2 Where rehabilitation for seismic resistance is not required by the general existing

42、 building code, voluntary rehabilitation for seismic resistance shall be permitted.1.1.9 This code is not intended for repair of nonstructural concrete or for aesthetic improvements, except if failure of such repairs would result in an unsafe condition.1.1.10 Licensed design professional1.1.10.1 All

43、 references in this code to the licensed design professional shall be understood to mean persons who possess the knowledge and skills to interpret and properly use this code and are licensed in the jurisdiction where this code is being used. The licensed design professional for a project is responsi

44、ble for and in charge of the evaluation or repair design, or both.1.1.10.2 The licensed design professional is permitted to require evaluation, design, construction, and quality assur-ance that exceed the minimum requirements of this code.1.2Applicability1.2.1 The requirements of this code are appli

45、cable when performing evaluation, repair, rehabilitation, and strength-ening of existing concrete buildings and concrete portions of other existing buildings.1.2.2 This code shall govern the evaluation, repair, reha-bilitation, and strengthening of nonbuilding concrete struc-tures when required by t

46、he building official.1.1.8C Conditions for evaluation of seismic resistance and repair are provided in ACI 369R, ASCE/SEI 31, and ASCE/SEI 41. Significant improvements to a buildings seismic resistance can be made using repair techniques that provide less than those detailing and reinforcement metho

47、ds required for new construction. As an example, providing additional reinforcement to confine concrete in flexural hinging regions will increase the energy dissipation and seismic performance even though the amount of confinement reinforcement may not satisfy the confinement requirements for new st

48、ructures (Kahn 1980; Priestley et al. 1996; Harris and Stevens 1991).Components of the seismic-force-resisting system that require strength and ductility should be identified. Force-controlled (nonductile) action is acceptable for some clas-sifications of components of the seismic-force-resisting sy

49、stem (ASCE/SEI 41). The strength requirement of 7.1 is applicable to these force-controlled components. ASCE/SEI 41 and ACI 369R provide information on rehabilitation for seismic resistance. Seismic-resisting components requiring energy-dissipating capability should maintain the ability to dissipate energy when repaired. Design and detailing requirements for proper seismic resistance of cast-in-place or precast concrete structures are addressed in ACI 318M and 369R.1.1.10.1C The licensed design professional is expected to exer