1.1 本试验方法包括根据规范确定用作锥形钢灯杆基础的混凝土基座的极限弯矩承载力和开裂弯矩承载力 C1804 . 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 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。 1.4 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。 ====意义和用途====== 5.1 本试验方法旨在为用户提供可接受的仪器要求和规定的程序，以确定与锥形钢杆一起使用的旋压预应力混凝土底座的弯矩承载力。 5.2 本试验方法的结果用作验证计算弯矩承载力、制造过程质量控制工具以及确定统计弯矩承载力的依据。 5.3 本试验方法不适用于全长预应力混凝土、钢或复合电杆。

1.1 This test method covers determination of ultimate bending moment capacity and cracking moment capacity of concrete bases used as foundations for tapered steel lighting poles in accordance to Specification C1804 . 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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. 1.4 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. ====== Significance And Use ====== 5.1 This test method is intended to provide the user with acceptable apparatus requirements and a prescribed procedure to determine the bending moment capacity of spun pre-stressed concrete bases for use with tapered steel poles. 5.2 The results of this test method are used as a basis for verification of calculated bending moment capacity, quality control tool for manufacturing process and as a basis for determining statistical bending moment capacity. 5.3 This test method shall not be used for full length prestressed concrete, steel, or composite poles.