1.1 本试验方法包括确定弯曲屈服力矩和计算弯曲屈服强度的程序( F yb )钉子、钉子和销钉型螺纹紧固件（统称为紧固件）在承受静态载荷时的强度。弯曲屈服强度用于工程连接应用，其中所需的连接能力由设计者指定。 1.2 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。 注1: 该试验方法适用于英寸磅 F1575 或国际单位制[ 1.55亿南非兰特 ]. 以SI表示的值是两个有效数字的数学转换，显示在括号中[ ]. 1.3 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。 1.4 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。 ====意义和用途====== 5.1 钉子、钉子和销钉型螺纹紧固件是木结构中常见的机械紧固件。用于确定这些类型紧固件的横向荷载连接能力的工程设计程序依赖于屈服理论来确定标称阻力。为了开发横向加载连接的标称阻力，必须知道紧固件的弯曲屈服强度、长度和直径。

1.1 This test method covers procedures for determining the bending yield moment and calculation of bending yield strength ( F yb ) of nails, spikes, and dowel-type threaded fasteners (referred to collectively as fasteners) when subjected to static loading. Bending yield strength is used in engineered connection applications, in which a required connection capacity is specified by the designer. 1.2 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. Note 1: This test method is applicable in either inch-pounds F1575 or SI Units [ F1575M ]. Values stated in SI are a mathematical conversion of two significant digits and are shown in brackets [ ]. 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 Nails, spikes, and dowel-type threaded fasteners are common mechanical fasteners in wood structures. Engineering design procedures used to determine the capacities of laterally-loaded connections with these types of fasteners rely on a yield theory to establish the nominal resistance. In order to develop the nominal resistance for laterally-loaded connections, the fastener bending yield strength, length, and diameter must be known.