1.1本规程适用于波纹铝管和管拱的结构设计，以及用作涵洞、雨水管和其他埋地管道的铝结构板管、管拱和拱的结构设计。本规程适用于安装在沟槽或路堤中并承受公路、铁路和飞机荷载的管道。必须认识到，埋地波纹铝管是由铝环和土壤外壳组成的复合结构，这两个元素在此类结构的结构设计中起着至关重要的作用。 1.2波纹铝管和管拱应采用铆接接缝进行环形制造，或采用具有连续锁缝的螺旋制造。 1.3结构板管、管拱和拱在单独的板中制造，当在工作现场通过螺栓连接组装时，形成所需的形状。 1.4本规范适用于规范B 790中以英寸-磅为单位或规范B 790M中以国际单位制为单位的设计。 英寸磅单位和国际单位不一定相等。为清楚起见，本文中的括号中显示了国际单位制，但当根据规范B 790M进行设计时，它们是适用的值。 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 is intended for the structural design of corrugated aluminum pipe and pipe-arches, and aluminum structural plate pipe, pipe-arches, and arches for use as culverts and storm sewers and other buried conduits. This practice is for pipe installed in a trench or embankment and subjected to highway, railroad, and aircraft loadings. It must be recognized that a buried corrugated aluminum pipe is a composite structure made up of the aluminum ring and the soil envelope, and both elements play a vital part in the structural design of this type of structure. 1.2 Corrugated aluminum pipe and pipe-arches shall be of annular fabrication using riveted seams, or of helical fabrication having a continuous lockseam. 1.3 Structural plate pipe, pipe-arches, and arches are fabricated in separate plates that when assembled at the job site by bolting form the required shape. 1.4 This specification is applicable to design in inch-pound units as Specification B 790 or in SI units as Specification B 790M. Inch-pound units and SI units are not necessarily equivalent. SI units are shown in brackets in the text for clarity, but they are the applicable values when the design is done in accordance with Specification B 790M. 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.