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现行 ASTM A1114/A1114M-20
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Standard Specification for Low-Relaxation, Seven-Wire, Grade 240 [1655], Stainless Steel Strand for Prestressed Concrete 预应力混凝土用240[1655]级七线低松弛不锈钢绞线的标准规范
发布日期: 2020-03-01
1.1 本规范涵盖预应力混凝土施工中使用的240[1655]级低松弛七丝不锈钢绞线。根据钢绞线的标称面积,240[1655]级钢绞线的最小抗拉强度为240 ksi[1655 MPa]。 1.2 本规范的正文引用了提供解释材料的注释和脚注。这些注释和脚注(不包括表中的注释和脚注)不应视为本规范的要求。 1.3 本规范适用于以英寸-磅为单位的订单(作为规范 A1114型 )或使用国际单位制(作为规范 A1114M ). 1.4 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。 每个系统中规定的值不一定是精确的等价物;因此,为确保符合本规范,每个系统应独立使用,且两个系统的值不得组合。 1.5 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全、健康和环境实践,并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。
1.1 This specification covers low-relaxation, seven-wire, Grade 240 [1655], stainless steel strand for use in prestressed concrete construction. Grade 240 [1655] has a minimum tensile strength of 240 ksi [1655 MPa] based on the nominal area of the strand. 1.2 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables) shall not be considered as requirements of the specification. 1.3 This specification is applicable for orders in either inch-pound units (as Specification A1114 ) or in SI units (as Specification A1114M ). 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with this specification, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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归口单位: A01.05
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