1、Designation: D 7033 07Standard Practice forEstablishing Design Capacities for Oriented Strand Board(OSB) Wood-Based Structural-Use Panels1This standard is issued under the fixed designation D 7033; the number immediately following the designation indicates the year oforiginal adoption or, in the cas
2、e of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONOriented strand board (OSB) wood-based structural-use panels have been used in a variety o
3、fapplications since the 1970s. OSB panels manufactured for use in North America generally complywith U.S. Department of Commerce Standard PS-2. Panels that comply with PS-2 are subjected tovarious kinds of qualification performance testing and ongoing quality assurance testing. While manypanel appli
4、cations are specified simply on the basis of meeting a given “span rating” as defined inPS-2, some construction and specialty applications may require a complete set of engineering designvalues. Based on the structural tests required by PS-2 (flexure), along with data for other properties,a set of b
5、aseline capacities has been available since 1988. As is customary for structural-use panels,design values will be discussed in this practice in terms of design capacities rather than designproperties, where the difference is that a design property is expressed in units of stress (that is,pounds-per-
6、square inch) and a design capacity is expressed in the engineering units of strength (thatis, inch-pounds of bending strength capacity, pounds of tensile capacity, and so forth). The term“design values” will be used generically and can apply to either properties or capacities.As uses for OSB wood-ba
7、sed structural-use panels extend into new applications, it becomesincreasingly important that manufacturers, qualified agencies, and regulatory bodies reference a set ofcommon, consensus-based procedures for establishment of design values. The purpose of this practiceis to provide these common proce
8、dures.1. Scope1.1 This practice covers the basis for code recognition ofdesign capacities for OSB structural-use panels. Procedures areprovided to establish or re-evaluate design capacities for OSBstructural-use panels. Procedures for sampling and testing arealso provided. Design values stated as ca
9、pacity per unitdimension are to be regarded as standard. Design capacitiesdeveloped in accordance with this practice are applicable topanels intended for use in dry in-service conditions.NOTE 1This practice is based on ICC-ES Acceptance Criteria AC-182. Relative to the scope of AC-182, this practice
10、 is limited to OSBpanels.NOTE 2While this practice makes reference to PS-2, this practiceapplies similarly to products certified to other standards such as CAN/CSA O325.NOTE 3OSB produced under PS-2 is rated with the “Exposure 1”bond classification. Exposure 1 panels covered by PS-2 are intended for
11、dry use applications where the in-service equilibrium moisture contentconditions are expected to be less than 16 %. Exposure 1 panels areintended to resist the effects of moisture due to construction delays, orother conditions of similar severity. Guidelines on use of OSB areavailable from manufactu
12、rers and qualified agencies.2. Referenced Documents2.1 ASTM Standards:2D9 Terminology Relating to Wood and Wood-Based Prod-uctsD 143 Test Methods for Small Clear Specimens of TimberD 1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel MaterialsD 1761 Test Methods for Me
13、chanical Fasteners in WoodD 1990 Practice for Establishing Allowable Properties forVisually-Graded Dimension Lumber from In-Grade Testsof Full-Size SpecimensD 2555 Practice for Establishing Clear Wood Strength Val-uesD 2718 Test Methods for Structural Panels in Planar Shear(Rolling Shear)1This pract
14、ice is under the jurisdiction of ASTM Committee D07 on Wood andis the direct responsibility of Subcommittee D07.03 on Panel Products.Current edition approved April 15, 2007. Published May 2007. Originallyapproved in 2005. Last previous edition approved in 2005 as D 7033 05.2For referenced ASTM stand
15、ards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, P
16、A 19428-2959, United States.D 2719 Test Methods for Structural Panels in ShearThrough-the-ThicknessD 2915 Practice for Evaluating Allowable Properties forGrades of Structural LumberD 3043 Test Methods for Structural Panels in FlexureD 3500 Test Methods for Structural Panels in TensionD 3501 Test Met
17、hods for Wood-Based Structural Panels inCompressionD 4442 Test Methods for Direct Moisture Content Measure-ment of Wood and Wood-Base MaterialsD 4933 Guide for Moisture Conditioning of Wood andWood-Based MaterialsD 5456 Specification for Evaluation of Structural Compos-ite Lumber ProductsD 5457 Spec
18、ification for Computing Reference Resistanceof Wood-Based Materials and Structural Connections forLoad and Resistance Factor DesignD 5764 Test Method for Evaluating Dowel-BearingStrength of Wood and Wood-Based ProductsD 6815 Specification for Evaluation of Duration of Loadand Creep Effects of Wood and Wood-Based ProductsE 4 Practices for Force Verification of Testing Machines2.2 Other Documents:PS-2 Performance Standard for Wood-Based Structural-UsePanels, U.S. Department of Commerce Voluntary ProductStandard3NDS ANSI/AF or through the ASTM website(www.astm.org).D7033079
