1.1 本规范涵盖玻璃纤维增强聚合物（GFRP）传力杆，按切割长度提供，表面光滑，因此当嵌入混凝土中时，混凝土沿传力杆纵轴的膨胀和收缩不会受到抑制。传力杆通常被称为传力杆，用作混凝土板之间的剪切传递装置。此外，GFRP传力杆具有电磁透明性，与钢相比重量轻，且不腐蚀。本规范涵盖的暗销应满足本文所述的几何、材料、机械和物理性能要求。 1.2 根据本标准生产的暗销杆必须使用中引用的测试方法满足要求 表1 .生产批次传力杆的质量控制和验收必须符合要求，使用中引用的测试方法 表2 . 1.3 本规范的文本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）不应被视为规范的要求。 1.4 本规范不包括以下传力杆: 1.4.1 由一种以上承载纤维加固类型（即混合FRP）制成的插筋。 1.4.2 具有外表面处理、涂层或在生产后添加的破胶剂的传力杆。 1.4.3 具有外表面增强以与混凝土结合的暗销钢筋（即用于混凝土钢筋的钢筋）。 1.4.4 几何形状不是实心圆形横截面的暗销。 1.5 本规范适用于国际单位制（如规范D8444M）或英寸磅单位（如规范D7444）。 1.6 以国际单位制或英寸磅单位表示的数值应单独视为标准。每个系统中规定的值不一定是完全相等的；因此，为了确保符合标准，每个系统应独立使用，并且不得将两个系统的值组合使用。 1.6.1 在文本中，英寸磅单位显示在括号中。 1.7 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers glass fiber reinforced polymer (GFRP) dowel bars, provided in cut lengths and having a smooth surface so that when embedded in concrete, the expansion and contraction of concrete along the longitudinal axis of the dowel is not inhibited. A dowel bar, commonly referred to as a dowel, acts as a shear transfer device between concrete slabs. In addition, GFRP dowel bars are electromagnetically transparent, lightweight compared to steel, and non-corroding. Dowels covered by this specification shall meet the requirements for geometric, material, mechanical, and physical properties described herein. 1.2 Dowel bars produced according to this standard must meet the requirements using the test methods referenced in Table 1 . Quality control and acceptance of production lots of dowel bars must meet the requirements using the test methods referenced in Table 2 . 1.3 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. 1.4 The following dowel bars are not covered by this specification: 1.4.1 Dowel bars made of more than one load-bearing fiber reinforcement type (that is, hybrid FRP). 1.4.2 Dowel bars having an external surface treatment, coating or bond-breaking agent added after production. 1.4.3 Dowel bars having an external surface enhancement for bonding with concrete (that is, bars intended for concrete reinforcement). 1.4.4 Dowel bars with geometries other than solid, round cross sections. 1.5 This specification is applicable for either SI (as Specification D8444M) or inch-pound units (as Specification D8444). 1.6 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 the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.6.1 Within the text, the inch-pound units are shown in brackets. 1.7 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. 1.8 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.