ASTM A722/A722M-2007 预应力混凝土用无涂覆的高强度钢筋的标准规范
【英文标准名称】: Standard Specification for Uncoated High-Strength Steel Bars for Prestressing Concrete 【原文标准名称】: 预应力混凝土用无涂覆的高强度钢筋的标准规范 【标准号】: ASTM A722/A722M-2007 【标准状态】: 现行 【国别】: 美国 【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(US-ASTM)【起草单位】: A01.05【标准类型】: (Specification)【标准水平】: ()【中文主题词】: 【英文主题词】: deformed bars; high-strength steel bars; plain bars ; post-tensioning; prestressed concrete【摘要】: 1.1 This specification covers uncoated high-strength steel bars intended for use in pretensioned and post-tensioned prestressed concrete construction or in prestressed ground anchors. Bars are of a minimum ultimate tensile strength level of 1035 MPa (150000 psi). 1.2 Two types of bars are provided: Type I bar has a plain surface and Type II bar has surface deformations. 1.3 Supplementary requirements of an optional nature are provided. They shall apply only when specified by the purchaser. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 【中国标准分类号】: H49【国际标准分类号】: 77_140_15【页数】: 5P.;A4【正文语种】: 英语
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