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玻璃纤维增强塑料夹砂管是多材料、管壁结构复杂的多层复合管道。各向异性的力学特点和蠕变变形的存在,使得该种管道的内力和变形分析非常繁琐。《给水排水埋地玻璃纤维增强塑料夹砂管管道结构设计规程》CECS195:2005借鉴美国水工业协会相关标准的经验,依据国内产品标准的检测规定,引入了“等效”设计的概念,简化了设计过程。本文对此进行简要的介绍。
Glass fiber reinforced plastic pipe is a multi-material, pipe wall structure of complex multi-layer composite pipe. The anisotropic mechanical characteristics and the existence of creep deformation, making the kind of pipe internal force and deformation analysis is very complicated. CECS195: 2005 Draw lessons from the relevant standards of the American Water Industry Association, and introduce the concept of “equivalent” design according to the test provisions of the domestic product standards. The “water supply and drainage of glass fiber reinforced plastic pipe” Simplify the design process. This article gives a brief introduction.