CAN CSA-A371-2014 Masonry construction for buildings (Fifth Edition).pdf

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1、REVISED APRIL 2015CAN/CSA-A371-14National Standard of Canada(approved April 2015)Masonry construction for buildingsLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approvedby the Standards Council

2、 of Canada. This process brings together volunteers representing varied viewpoints and interests to achieve consensusand develop a standard. Although CSA Group administers the process and establishes rules to promote fairness in achieving consensus, it doesnot independently test, evaluate, or verify

3、 the content of standards.Disclaimer and exclusion of liabilityThis document is provided without any representations, warranties, or conditions of any kind, express or implied, including, without limitation,implied warranties or conditions concerning this documents fitness for a particular purpose o

4、r use, its merchantability, or its non-infringementof any third partys intellectual property rights. CSA Group does not warrant the accuracy, completeness, or currency of any of the informationpublished in this document. CSA Group makes no representations or warranties regarding this documents compl

5、iance with any applicablestatute, rule, or regulation.IN NO EVENT SHALL CSA GROUP, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS,OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED,

6、INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS INTERRUPTION, LOST OR DAMAGEDDATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS,WHETHER BASED IN CONTRACT,TORT (INCLUDING NEGLIGENCE), OR ANY OTHERTHEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSS

7、ESSION OR USE OF THIS DOCUMENT, EVEN IF CSA GROUPHAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA Group is not undertaking to render professional or other services for or on behalf of anyperson or entity or to

8、 perform any duty owed by any person or entity to another person or entity. The information in this document is directedto those who have the appropriate degree of experience to use and apply its contents, and CSA Group accepts no responsibility whatsoeverarising in any way from any and all use of o

9、r reliance on the information contained in this document.CSA Group is a private not-for-profit company that publishes voluntary standards and related documents. CSA Group has no power, nor does itundertake, to enforce compliance with the contents of the standards or other documents it publishes.Inte

10、llectual property rights and ownershipAs between CSA Group and the users of this document (whether it be in printed or electronic form), CSA Group is the owner, or the authorizedlicensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the

11、 contrary), and allinventions and trade secrets that may be contained in this document, whether or not such inventions and trade secrets are protected bypatents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document mayviolate la

12、ws that protect CSA Groups and/or others intellectual property and may give rise to a right in CSA Group and/or others to seek legalredress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA Group reserves all intellectualproperty rights in this doc

13、ument.Patent rightsAttention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. CSA Group shall not beheld responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validi

14、ty ofany such patent rights is entirely their own responsibility.Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user of this document is authorized to doonly the following:If this document is in electronic form: load thi

15、s document onto a computer for the sole purpose of reviewing it; search and browse this document; and print this document if it is in PDF format.Limited copies of this document in print or paper form may be distributed only to persons who are authorized by CSA Group to have suchcopies, and only if t

16、his Legal Notice appears on each such copy.In addition, users may not and may not permit others to alter this document in any way or remove this Legal Notice from the attached standard; sell this document without authorization from CSA Group; or make an electronic copy of this document.If you do not

17、 agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make anycopies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this documentconstitutes your acceptance of the terms and c

18、onditions of this Legal Notice.Revision HistoryA371-14, Masonry construction for buildingsNational Standard of Canada April 2015Outside front cover, National Standard of Canada text, title page, and preface.Standards Update ServiceCAN/CSA-A371-14June 2014Title: Masonry construction for buildingsTo r

19、egister for e-mail notification about any updates to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2422858.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Gro

20、ups policy on privacy at www.csagroup.org/legal to find out how we protect yourpersonal information.Canadian Standards Association (operating as “CSA Group”), underwhose auspices this National Standard has been produced, waschartered in 1919 and accredited by the Standards Council ofCanada to the Na

21、tional Standards system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged instandards development and certification activities.CSA Group standards reflect a national consensus of producers andusers including manufacturers, consumers, retailers, unions andprofess

22、ional organizations, and governmental agencies. Thestandards are used widely by industry and commerce and oftenadopted by municipal, provincial, and federal governments in theirregulations, particularly in the fields of health, safety, building andconstruction, and the environment.Individuals, compa

23、nies, and associations across Canada indicatetheir support for CSA Groups standards development byvolunteering their time and skills to Committee work and supportingCSA Groups objectives through sustaining memberships. The morethan 7000 committee volunteers and the 2000 sustainingmemberships togethe

24、r form CSA Groups total membership fromwhich its Directors are chosen. Sustaining memberships represent amajor source of income for CSA Groups standards developmentactivities.CSA Group offers certification and testing services in support of andas an extension to its standards development activities.

25、 To ensurethe integrity of its certification process, CSA Group regularly andcontinually audits and inspects products that bear theCSA Group Mark.In addition to its head office and laboratory complex in Toronto, CSAGroup has regional branch offices in major centres across Canadaand inspection and te

26、sting agencies in eight countries. Since 1919,CSA Group has developed the necessary expertise to meet itscorporate mission: CSA Group is an independent serviceorganization whose mission is to provide an open and effectiveforum for activities facilitating the exchange of goods and servicesthrough the

27、 use of standards, certification and related services tomeet national and international needs.For further information on CSA Group services, write toCSA Group178 Rexdale BoulevardToronto, Ontario, M9W 1R3CanadaThe Standards Council of Canada (SCC) is the coordinating body ofthe Canadian standardizat

28、ion network, which is composed of peopleand organizations involved in the development, promotion andimplementation of standards. Through the collaborative efforts ofCanadian standardization network members, standardization ishelping to advance the social and economic well-being of Canadaand to safeg

29、uard the health and safety of Canadians. The networksefforts are overseen by SCC.The principal objectives of SCC are to foster and promote voluntarystandardization as a means of advancing the national economy,supporting sustainable development, benefiting the health, safetyand welfare of workers and

30、 the public, assisting and protecting theconsumer, facilitating domestic and international trade, andfurthering international cooperation in relation to standardization.An important facet of the Canadian standards development systemis the use of the following principles: consensus; equal access ande

31、ffective participation by concerned interests; respect for diverseinterests and identification of those who should be afforded accessto provide the needed balance of interests; mechanism for disputeresolution; openness and transparency; open access by interestedparties to the procedures guiding the

32、standards developmentprocess; clarity with respect to the processes; and Canadian interestconsideration as the initial basis for the development of standards.A National Standard of Canada (NSC) is a standard prepared orreviewed by an SCC-accredited SDO and approved by the SCCaccording to NSC approva

33、l requirements. Approval does not refer tothe technical content of the standard, as this remains theresponsibility of the SDO. An NSC reflects a consensus of a numberof capable individuals whose collective interests provide, to thegreatest practicable extent, a balance of representation of generalin

34、terests, producers, regulators, users (including consumers) andothers with relevant interests, as may be appropriate to the subjectat hand. NSCs are intended to make a significant and timelycontribution to the Canadian interest.Those who have a need to apply standards are encouraged to useNSCs. Thes

35、e standards are subject to periodic review. Users of NSCsare cautioned to obtain the latest edition from the SDO thatpublishes the standard.The responsibility for approving standards as NSCs rests withStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaCette Norme Na

36、tionale du Canada est disponible en versions franaise et anglaise.Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility ofthe users to judge its suitability for their particular purpose.TMA trade-mark of the Cana

37、dian Standards Association, operating as “CSA Group”ICS 91.080.30ISBN 978-1-77139-445-1 2014 CSA GroupAll rights reserved. No part of this publication may be reproduced in any form whatsoeverwithout the prior permission of the publisher.Published in June 2014 by CSA GroupA not-for-profit private sec

38、tor organization178 Rexdale Boulevard,Toronto, Ontario, Canada M9W 1R3To purchase standards and related publications, visit our Online Store at shop.csa.caor call toll-free 1-800-463-6727 or 416-747-4044.TMA trade-mar k of the Canadian S tandards Association,operating as “CSA Group”Prepared byApprov

39、ed byMasonry construction for buildingsCAN/CSA-A371-14(approved April 2015)National Standard of CanadaCAN/CSA-A371-14 Masonry construction for buildingsJune 2014 2014 CSA Group1ContentsTechnical Committee on Masonry Construction for Buildings 5Preface 81 Scope 102 Reference publications 103 Definiti

40、ons 134 Alternative systems 195 Materials for masonry construction 195.1 Masonry units 195.1.1 Concrete masonry units 195.1.2 Clay (shale) masonry units 195.1.3 Calcium silicate (sand-lime) masonry units 195.1.4 Natural stone masonry units 195.1.5 Manufactured stone masonry units 205.2 Mortar and gr

41、out 205.3 Reinforcement and connectors 205.3.1 Reinforcement 205.3.2 Connectors (anchors, fasteners, ties, and joint reinforcements used as a continuous tie) 215.4 Dampproof courses and flashings 216 Construction 216.1 General requirements 216.1.1 Temporary bracing 216.1.2 Below-grade masonry protec

42、tion during construction 216.1.3 Dismantling falsework 216.1.4 Construction of stop-offs 226.1.5 Integrity of loadbearing masonry 226.2 Construction tolerances 226.2.1 Junctions between unit masonry and non-masonry components and assemblies 226.2.2 Unit masonry 226.3 Movement joints 256.4 Masonry su

43、pport 256.4.1 General 256.4.2 Projection of a nonloadbearing wall or veneer 256.4.3 Support of masonry and shelf angles supporting masonry 256.5 Wood built into masonry 256.5.1 General 256.5.2 Structural wood members terminating in exterior masonry 256.6 Other masonry components and assemblies 256.6

44、.1 Parapets 256.6.2 Corbelling 266.6.3 Cornices, belt courses, and sills 26CAN/CSA-A371-14 Masonry construction for buildingsJune 2014 2014 CSA Group26.6.4 Chimneys and fireplaces 266.7 Weather protection 266.7.1 General requirements 266.7.2 Cold weather construction requirements 276.7.3 Cold weathe

45、r protection requirements 276.7.4 Hot weather requirements 287 Mortar joints and laying masonry units 287.1 Mortar joints 287.1.1 Tooling of joints 287.1.2 Thickness of joints 287.1.3 Integrity of the horizontal joint 297.1.4 Execution of head joints 297.1.5 Mortared collar joints 297.1.6 Pointing a

46、nd repointing 297.2 Laying of masonry units 297.2.1 Laying of hollow and semi-solid units 297.2.2 Laying of solid and cored units 297.2.3 Junction of new and set masonry 297.2.4 Positioning of masonry units 307.2.5 Realignment 307.2.6 Filling of mortar holes 307.2.7 Laying of natural stone masonry u

47、nits 308 Reinforcement and grouting 308.1 Horizontal joint reinforcement 308.2 Reinforced and grouted masonry 318.2.1 General 318.2.2 Grouting between wythes in masonry 328.2.3 Grouting by filling the cells of hollow and semi-solid units 338.2.4 Bond beams 338.2.5 Fabrication and placement of reinfo

48、rcement 349 Anchorage and bonding of masonry 379.1 Intersecting masonry 379.1.1 Corner intersections of loadbearing and nonloadbearing masonry walls 379.1.2 Other masonry intersections 379.2 Anchorage to structural frame 379.2.1 Space between masonry and structure 379.2.2 Lateral support 379.2.3 Wed

49、ges 379.3 Installation of anchors and anchors/ties 379.3.1 Prescriptive anchors and anchors/ties 389.3.2 Prescriptive dovetail anchors/ties 389.3.3 Prescriptive bar anchors 389.3.4 Prescriptive bolt and rod anchors 389.3.5 Connector installation sequence 399.3.6 Anchors other than prescriptive anchors 399.3.7 Straightness and perpendicularity of ties and anchors 39CAN/CSA-A371-14 Masonry construction for buildingsJune 2014 2014 CSA Group39.4 Tying or bonding of wythes 399.4.1 General 399.4.2 Ties 399.4.3 Masonry bonding units 409.5 Anchor bolts 419.5.1 General 4

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