1.1 本规程建立了一种替代剪力墙系统的方法，以比较从平面内循环货架试验得出的地震等效参数（SEP）与从使用钉子将木结构板（WSP）护套连接到尺寸木材框架上的轻型框架剪力墙的试验得出的性能目标。 1.2 本规程仅考虑承受平行于剪力墙平面的循环侧向荷载的剪力墙的性能。不考虑带开口的墙的设计和其他墙功能的性能，例如平面外弯曲、组合剪切和隆起等。 1.3 本规程仅适用于所有垂直荷载支撑构件在平面内横向荷载试验结束时完好无损，并且能够支撑重力荷载的剪力墙。在横向荷载试验期间，垂直荷载支撑元件弯曲或无法支撑重力荷载的墙体组件不在本规程范围内。 此外，对于承重墙系统，本规程假设所评估的剪力墙系统已记录设计程序，以确保垂直荷载支撑构件具有足够的抵抗倾覆和重力荷载引起的压缩荷载的组合效应。 1.4 本规程不涉及高度限制、详细要求、墙体开口、强度和刚度设计值的推导，或替代剪力墙系统可能需要的其他要求和限制。这些要求应在其他地方提供，例如替代剪力墙系统的适当产品标准。 1.5 这种做法假设可以估计备选剪力墙系统的刚度或变形，并且结构内的设计荷载将根据其相对刚度分布在地震等效墙系统之间。 1.6 本实践并不排除其他合理的抗震性能评估方法。 1.7 本实践假设替代剪力墙系统可以单独使用，也可以与覆有木质结构板的木框架剪力墙结合使用。 1.8 单位- 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。 1.9 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。 1.10 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 本规程记录了使用通用或镀锌箱钉将木结构板（WSP）护套连接到尺寸木材框架上建造的剪力墙的循环性能基准，如 3.2.8 . 5.2 本规程中描述的程序提供了一种评估替代剪力墙系统的SEP的方法，以证明与参考剪力墙系统等效的平面内横向抗震性能。 5.3 本规程中描述的程序并没有解决识别替代剪力墙系统时需要考虑的所有因素。这些因素如中所述 1.4 ，因最终用途不同而不同，应根据建筑规范和标准（如适用）的要求，通过评估替代剪力墙系统的可接受性，在本标准范围外解决。

1.1 This practice establishes a method for alternative shear wall systems to compare seismic equivalency parameters (SEP) derived from cyclic in-plane racking tests to performance targets derived from tests of light-frame shear walls constructed with wood structural panel (WSP) sheathing attached to dimension lumber framing using nails. 1.2 This practice considers only the performance of shear walls subject to cyclic lateral loading, parallel to the plane of the shear wall. Design of walls with openings and performance for other wall functions, such as out-of-plane bending, combined shear and uplift, and so forth are not considered. 1.3 This practice is applicable only to shear walls where all vertical-load-supporting elements are intact at the end of the in-plane lateral load test and remain capable of supporting gravity loads. Wall assemblies whose vertical-load-supporting elements buckle or otherwise become incapable of supporting gravity loads during the lateral load test are outside the scope of this practice. In addition, for bearing wall systems, this practice assumes that the shear wall system under evaluation has documented design procedures to ensure that vertical-load-supporting elements have adequate resistance to the combined effect of compression loads caused by overturning and gravity loads. 1.4 This practice does not address height limitations, detailing requirements, wall openings, derivation of design values for strength and stiffness, or other requirements and limitations that may be necessary for an alternative shear wall system. These requirements shall be provided elsewhere, such as by a suitable product standard for the alternative shear wall system. 1.5 This practice assumes that the stiffness or deformation of the alternative shear wall system can be estimated, and that design loads within a structure will be distributed among seismically equivalent wall systems based on their relative stiffness. 1.6 This practice is not intended to preclude other rational means of evaluating seismic performance. 1.7 This practice assumes that the alternative shear wall system may be used alone or in combination with wood-frame shear walls sheathed with wood structural panels. 1.8 Units— 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. 1.9 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. 1.10 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 practice documents cyclic performance benchmarks for shear walls constructed with wood structural panel (WSP) sheathing attached to dimension lumber framing using common or galvanized box nails as defined in 3.2.8 . 5.2 Procedures described in this practice provide a method to evaluate an alternative shear wall system’s SEPs to demonstrate equivalent in-plane lateral seismic performance to the reference shear wall system. 5.3 The procedures described in this practice do not address all factors to be considered for recognition of an alternative shear wall system. Such factors, as described in 1.4 , vary by the end-use application and shall be addressed outside the scope of this standard through an evaluation of the acceptability of the alternative shear wall system in accordance with requirements of building codes and standards, as applicable.