CSA O177-2006 Qualification code for manufacturers of structural glued-laminated timber (Fifth Edition Update No 1 May 2013).pdf

1、O177-06(reaffirmed 2011)Qualification code for manufacturers of structural glued-laminated timberLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings t

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16、 of this Legal Notice.Update No. 1O177-06May 2013Note: For information about the Standards Update Service, go to shop.csa.ca or e-mail techsupportcsagroup.org.Title: Qualification code for manufacturers of structural glued-laminated timber originally published February 2006The following revisions ha

17、ve been formally approved and are marked by the symbol delta () in the margin on the attached replacement pages:Revised Clauses 2, 3, 6.3.1, 9.5.1, 9.5.2, 9.6.2, 9.6.5, A.4.1, and A.4.2New Clause 9.3.3Deleted None Update your copy by inserting these revised pages.Keep the pages you remove for refere

18、nce. 2013 CSA GroupQualification code for manufacturers of structural glued-laminated timberMay 2013O177-06Qualification code for manufacturers of structural glued-laminated timber1 Scope1.1 Glued-laminated timber (Glulam) is an engineered wood product requiring precise manufacturing at all stages o

19、f fabrication. The finished product can only be tested under laboratory conditions; therefore, quality control of manufacturing is necessary to ensure that the properties of Glulam are commensurate with the specified strengths assigned to Glulam in accordance with CAN/CSA-O86.This Standard outlines

20、requirements for the qualification of shop manufacturers of laminated structural timber that is pressure-glued using clamps or mechanical means other than nailing.1.2 This Standard outlines requirements for determining the initial and continuing suitability of a plants personnel, equipment, and proc

21、edures to manufacture structural glued-laminated timber in accordance with CSA O122.This Standard qualifies individual plants. If more than one plant is operated by one fabricator, each plant requires separate qualification. The process of glue laminating using mobile or temporary facilities is not

22、covered by this Standard.1.3 Certification of Glulam is not covered by this Standard. The manufacture of Glulam is covered by CSA O122.1.4 In CSA Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should”

23、is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternat

24、ive requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-

25、mandatory) to define their application.1.5 This Standard is written in SI (metric) units. For conversion into yard/pound (imperial) equivalents, see Annex F.2 Reference publicationsThis Standard refers to the following publications, and where such reference is made, it shall be to the edition listed

26、 below, including all amendments published thereto.1(Replaces p. 1, February 2006)O177-06 2013 CSA GroupMay 2013CSA (Canadian Standards Association)CAN/CSA-O86-01Engineering design in woodO112 Series-M1977 (R2001), CSA Standards for wood adhesives:O112.7-M1977 (R2001)Resorcinol and phenol-resorcinol

27、 resin adhesives for wood (room- and intermediate-temperature curing)O112.9-04Evaluation of adhesives for structural wood products (exterior exposure)O122-06Structural glued-laminated timberAPA (APA The Engineered Wood Association)PS 1-09Voluntary Product Standard for Construction and Industrial Ply

28、woodASTM International (American Society for Testing and Materials)D 2395-07Standard Test Methods for Specific Gravity of Wood and Wood-Based MaterialsD 4442-92 (2003)Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based MaterialsD 7247-07ae1Standard Test Method for Ev

29、aluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated TemperaturesISO/IEC (International Organization for Standardization/International Electrotechnical Commission)ISO/IEC 17065:2012Conformity assessment Requirements for bodies certifying products, processes and servic

30、esNRCC (National Research Council Canada)National Building Code of Canada, 2010ULC (Underwriters Laboratories of Canada)CAN/ULC-S101-07Standard Methods of Fire Endurance Tests of Building Construction and Materials3 DefinitionsIn addition to the definitions in CSA O122, the following definitions app

31、ly in this Standard: Certification agency (hereinafter referred to as Agency) an impartial body meeting the requirements of ISO/IEC 17065 that is competent to evaluate a manufacturers ability to meet the requirements in this Standard.Note: In Canada, certification agencies are accredited by the Stan

32、dards Council of Canada as part of the international accreditation forum.Layup the arrangement of each individual lamination in a Glulam member for a specific zone, as defined in Tables 4 to 7 of CSA O122.(Replaces p. 2, February 2006)2 2013 CSA GroupQualification code for manufacturers of structura

33、l glued-laminated timberMay 20136 Quality control6.1 Quality control organization6.1.1 A written description of the quality control organization shall be accessible to the Agency examiner and the plant superintendent.6.1.2 The quality control organization shall be independent of production personnel

34、 and shall report directly to management.6.1.3 The head of the quality control organization shall possess and demonstrate to the Agency an adequate knowledge of lumber and its grading and preparation, the characteristics of structural adhesives, gluing procedures, the fabrication of structural timbe

35、r, testing procedures, and applicable codes and standards. The head of the quality control organization shall also be able to read and understand plans and specifications.6.1.4 The services of a professional engineer who is acceptable to the Agency shall be available to the quality control organizat

36、ion. The engineer shall examine and make decisions concerning those minor deviations from approved manufacturing standards for which the quality control organization requires engineering judgment. The quality control organization shall maintain a record of all decisions made by the engineer.6.1.5 Qu

37、ality control personnel shall demonstrate to the Agency an adequate knowledge of the function or functions for which they are responsible and the applicable quality control equipment.6.2 Quality control measuresThe following measures shall be taken regularly in the course of fabrication:(a) The posi

38、tion of laminating grades contained in a Glulam member shall be identifiable before the clamping operation to ensure that the proper grades are used in the correct position.(b) Thickness and quality of machining of the surface and of end joints of all laminations shall be checked in accordance with

39、the requirements of CSA O122.(c) The handling, storage, and mixing of all adhesives shall be checked in accordance with the requirements of plant manuals.(d) The gluing, pressing, and setting requirements of Clause 6.4(f) shall be verified and included in quality control reports.(e) The identificati

40、on and testing of block shear, cyclic delamination, NDT lumber, and finger-joint specimens shall be checked in accordance with the requirements of CSA O122.6.3 Quality control equipment6.3.1 The manufacturer shall demonstrate to the Agency that the following quality control equipment is permanently

41、available at the manufacturing plant: Note: The equipment marked with an asterisk (*) may be temporarily obtained from an outside source for the purposes of this Standard.(a) a moisture meter for measuring, to a tolerance of 1% in moisture content, the moisture content of laminating stock to a depth

42、 of 19 2 mm from the surface in 38 mm thick material or to a depth of 10 2 mm from the surface in 19 mm thick material;5(Replaces p. 5, February 2006)O177-06 2013 CSA GroupMay 2013(b) suitable resistors to check moisture meter calibration;(c) a thickness gauging device having an accuracy of 0.025 mm

43、 for routine and regular measurement of laminating stock thickness, as required by CSA O122;(d) a device that can be routinely used to apply a known load level to check the accuracy of the modulus of elasticity (E) assigned by machines used in regular production of NDT rated lumber;(e) laboratory eq

44、uipment for measurement of the viscosity of adhesive mixes*;(f) balances having an accuracy of 0.1 g for measurement of the weight of glue spread;(g) thermometers and hygrometers for the measurement of temperature and relative humidity in storage and working areas and adjacent to curing packages;(h)

45、 thermometers for the measurement of the temperature of adhesive mixes;(i) a calibrated compression cylinder, metered hydraulic pressure plate, or a similar device that will verify the accuracy of the device used to apply clamping pressure*;(j) a calibrated torque wrench or equivalent device for the

46、 determination of the pressure on a package;(k) equipment for the block shear test in accordance with the requirements of CSA O122;(l) equipment for cyclic delamination tests in accordance with the requirements of CSA O122;(m) tables, curves, charts, and conversion factors necessary for use of quali

47、ty control equipment;(n) thermocouples and a potentiometer or similar equipment for the measurement of the inner bond line temperature while curing;(o) an increment borer for the sampling of inner portions of bond lines*; and(p) equipment for end-joint testing in accordance with the requirements of

48、CSA O122.6.3.2 Quality control facilities and equipment shall be maintained in operable conditions at all times. Equipment shall be calibrated at least once a year or as frequently as the equipment manufacturer recommends.6.4 Quality control recordsThe quality control organization shall maintain rec

49、ords and/or results of the following:(a) quality control personnel and the functions for which they are employed;(b) routine tests of NDT lumber used for laminating stock;(c) block shear tests;(d) vacuum-pressure cycle tests;(e) end-joint tests;(f) laminating conditions and procedures for each member or group of members that is fabricated;(g) quality control personnel responsible for each member or group of members that is fabricated; and(h) action taken concerning material found to contain manufacturing defects.6.5 ExaminationQuality control personnel sha