中文摘要：

纤维增强复合材料(FRP)具有良好的绝缘及耐污性,可大大提高输电线路的安全等级和降低维护成本。以380 k V输电线路改造为背景,对工程使用的200×10和272×12两种规格FRP复合钢套管受拉性能进行研究。试验分为设计荷载试验(工程应用)和极限承载力试验(破坏模式)两部分;通过研究得到了荷载-位移曲线、应变分布规律和破坏形式等。结果发现:黏结节点FRP复合材料套管与钢管连接处的抗拉承载力主要由胶黏剂强度决定,破坏形式:复合管被拉脱,属于典型的脆性破坏。最后,针对FRP复合套管抗拉设计给出了相关建议。

英文摘要：

FRP composite material has good insulation and stain resistance, which can greatly improve the safety level of transmission line and reduce maintenance cost. Based on the background of 380 kV transmission line reconstruction, in the project, two kinds of specifications of FRP composite steel casing φ200 ×10 and φ272 ×12 were used, and their tensile properties were studied, the test was divided into the design load test ( engineering application) and ultimate bearing capacity test ( failure mode); the load-displacement curves, strain disciplinarian law and failure mode etc were got.It was found that the bearing capacity of steel casing of bonded joints was mainly decided by the adhesive strength, the failure mode is brittleness form.Finally, in view of the tensile design of the FRP composite bushing, some design suggestions were proposed.