在金属管线外围缠绕不同厚度的碳纤维增强复合材料(CFRP)条件下,通过静水压试验进行纤维增强复合材料加固金属管线承载力测试。试验表明,外围缠绕CFRP材料可使金属管线承压能力增大。结合测试结果,采用薄壁容器应力计算公式,建立金属管道处于弹性、塑性状态加固所需FRP补强层厚度的设计公式,同时,基于厚壁圆筒在极坐标下的弹塑性解,建立修复结构在弹性、塑性状态下FRP加固金属管线的强度校核公式。所建立的设计公式无迭代计算,便于工程应用。 Under the circumstance that the carbon fiber reinforced composite (CFRP) with different thicknesses is wound on the periphery of the metal pipe, the bearing capacity of the metal reinforced plastic reinforced composites is tested by the hydrostatic test. Experiments show that the outer winding CFRP material can increase the pressure bearing capacity of metal pipelines. Combined with the test results, the formula of the stress of thin-walled vessel was used to establish the design formula of the thickness of FRP reinforcement layer required for the metal pipe to be reinforced in the elastic and plastic state. At the same time, based on the elastic-plastic solution of thick- STRUCTURE CORROSION CALCULATION OF FRP REINFORCED METAL PIPELINE IN ELASTIC AND PLASTIC CONDITIONS. The established design formula without iterative calculation, easy to engineering applications.