1.1本规程涵盖了确定结构胶合层压木材允许特性的程序。考虑的特性包括平行于晶粒的弯曲、拉伸和压缩、弹性模量、水平剪切、垂直于晶粒的压缩以及弯曲构件中的径向应力。 1.2本规程仅限于根据给定程序计算允许特性，以选择和安排所考虑品种的木材等级。 1.3不包括生产、检验和认证要求，但为了证明使用本规程中的程序开发的允许性能，制造商必须符合公认的制造标准。 参考ANSI/AITC AI90.1和CSA 0122。 1.4使用本规程确定的允许特性基于使用的干燥条件（含水量小于16%）。9.2中给出了湿使用条件的修改。 1.5以英寸-磅为单位的数值应视为标准值。 1.6 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和健康实践，并确定监管限制的适用性。

1.1 This practice covers the procedures for establishing allowable properties for structural glued laminated timber. Properties considered include bending, tension and compression parallel to the grain, modulus of elasticity, horizontal shear, compression perpendicular to the grain and radial stresses in curved members. 1.2 This practice is limited to the calculation of allowable properties subject to the given procedures for the selection and arrangement of grades of lumber of the species considered. 1.3 Requirements for production, inspection and certification are not included, but in order to justify the allowable properties developed using procedures in this practice, manufacturers must conform to recognized manufacturing standards. Refer to ANSI/AITC AI90.1 and CSA 0122. 1.4 Allowable properties established by use of this practice are based on dry conditions of use (less than 16 % moisture content). Modifications for wet-use conditions are given in 9.2. 1.5 The values stated in inch-pound units are to be regarded as standard. 1.6 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 and health practices and determine the applicability of regulatory limitations prior to use.