1.1 本试验方法涵盖了在承受静载荷时测定订书钉弯曲屈服力矩的程序。虽然用于规范中确定的平冠钉 F1667/F1667M ，此程序也适用于带圆导线的U形钉。这些订书钉用于工程木建筑连接应用中，其所需连接能力由设计师指定。 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，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 注1: 本试验方法适用于任何英寸- 英镑 F3359 或国际单位制[ F3359M ]. SI中的值是一种数学转换，用括号[]表示。 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 订书钉是木结构中使用的机械紧固件。用于确定横向加载钉连接能力的工程设计程序使用屈服理论来确定标称阻力( 注释2 ). 为了形成横向加载的钉连接的标称阻力，必须知道弯曲屈服力矩。 注2: 当在剪力墙和隔板中用作结构紧固件时，安装钉书钉时，钉书钉的顶部与框架构件的长尺寸平行。本弯曲屈服力矩测试的钉书钉方向代表适用于该预期用途的弯曲屈服力矩）。

1.1 This test method covers procedures for determining the bending yield moment of staples when subjected to static loading. Although intended for flat crown staples identified in Specification F1667/F1667M , this procedure is also applicable for staples with round wire. These staples are used in engineered wood building connection applications for which required connection capacities are 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 F3359 or SI Units [ F3359M ]. Values stated in SI are a mathematical conversion 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 Staples are mechanical fasteners used in wood structures. Engineering design procedures used to determine the capacities of laterally-loaded staple connections use a yield theory to establish nominal resistance ( Note 2 ). In order to develop nominal resistance for laterally-loaded stapled connections, the bending yield moment must be known. Note 2: When used as a structural fastener in shear walls and diaphragms, staples are installed with the crown parallel to the long dimension of the framing member. The orientation of the staples for this bending yield moment test represents the bending yield moment applicable for this intended use).