ASTM D5456-2007 结构复合木制品评定的标准规范

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                   【英文标准名称】:     Standard Specification for Evaluation of Structural Composite Lumber Products            【原文标准名称】:     结构复合木制品评定的标准规范            【标准号】:     ASTM D5456-2007            【标准状态】:     现行            【国别】:                 【发布日期】:     2007    【实施或试行日期】: 【发布单位】: 美国材料与试验协会(ASTM)【起草单位】: D07.02【标准类型】: (Specification)【标准水平】: ()【中文主题词】: 分级;木材;木制品【英文主题词】: allowable design stresses; mechanical properties; quality assurance; structural composite lumber【摘要】: 1.1 This specification recognizes the complexity of structural glued products. Consequently, this specification covers both specific procedures and statements of intent that sampling and analysis must relate to the specific product.1.2 This specification was developed in the light of currently manufactured products as defined in . Materials that do not conform to the definitions are beyond the scope of this specification. A brief discussion is found in .1.3 Details of manufacturing procedures are beyond the scope of this specification. Note 1There is some potential for manufacturing variables to affect the properties of members that are loaded for sustained periods of time. Users of this specification are advised to consider the commentary on this topic in .1.4 This specification primarily considers end use in dry service conditions, such as with most protected framing members, where the average equilibrium moisture content for solid-sawn lumber is less than 16 %. The conditioning environment of  is considered representative of such uses.1.5 The performance of structural composite lumber is affected by wood species, wood element size and shape, and adhesive and production parameters. Therefore, products produced by each individual manufacturer shall be evaluated to determine their product properties, regardless of the similarity in characteristics to products produced by other manufacturers. Where a manufacturer produces product in more than one facility, each production facility shall be evaluated independently. For additional production facilities, any revisions to the full qualification program in accordance with this specification shall be approved by the independent qualifying agency.1.6 This specification is intended to provide manufacturers, regulatory agencies, and end users with a means to evaluate a composite lumber product intended for use as a structural material.1.7 This specification covers initial qualification sampling, mechanical and physical tests, analysis, and design value assignments. Requirements for a quality-control program and cumulative evaluations are included to ensure maintenance of allowable design values for the product.1.8 This specification, or parts thereof, shall be applicable to structural composite lumber portions of manufactured structural components.1.9 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.【中国标准分类号】: B70【国际标准分类号】: 79_060_01【页数】: 20P.;A4【正文语种】:           
         

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