本标准规定了内压下埋地预应力混凝土圆筒管（PCCP）结构设计中使用的方法。这些方法适用于受工作、瞬态和现场试验荷载及内部压力组合影响的管道设计。 本标准的设计程序适用于内径为16英寸的内衬圆筒管（LCP）。通过60英寸。（410毫米至1520毫米）和内径为24英寸的嵌入式圆筒管（ECP）。（610毫米）及以上。PCCP主要用于市政、工业和灌溉系统的水输送和分配。 它还用于工厂管道系统、海水冷却系统、污水干管和重力下水道。其他应用包括倒虹吸管、压力隧洞衬砌和高覆土涵洞。本版标准的主要修订内容包括:1。混凝土和砂浆的单位重量在整个标准中保持一致。2.根据基于土壤的公认和记录的分析程序计算的超载荷载增加了一个替代标准？管道相互作用。3.受拉钢瓶的设计屈服强度已改变。4.自始至终都进行了大量编辑改进和参考更新。

This standard defines the methods to be used in the structural design of buried prestressed concrete cylinder pipe (PCCP) under internal pressure. These methods are provided for the design of pipe subjected to the effects of working, transient, and field-test load and internal pressure combinations. The design procedures of this standard are applicable to lined-cylinder pipe (LCP) having inside diameters of 16 in. through 60 in. (410 mm through 1,520 mm) and to embedded-cylinder pipe (ECP) having inside diameters of 24 in. (610 mm) and larger.PCCP is used principally in the transmission and distribution of water in municipal, industrial, and irrigation systems. It is also used in plant piping systems, seawater cooling systems, sewer force mains, and gravity sewers. Other applications include inverted siphons, liners for pressure tunnels, and culverts with high earth covers.The major revisions made to the standard in this edition include the following:1. The unit weights for concrete and mortar have been made consistent throughout the standard.2. An alternate criterion has been added for surcharge load computed in accordance with recognized and documented analytical procedures based on soil?pipe interaction.3. The design yield strength of the steel cylinder in tension has been changed.4. Numerous editorial improvements and reference updates have been made throughout.