【摘要】 FRP材料在土木工程加固中的应用越来越广泛,碳纤维(CFRP)虽然在加固工程中已得到广泛应用,但其长期的加固性能尚未得到证实.尤其在我国北方较寒冷地区,冻融破坏是造成潮湿环境中混凝土结构破坏的主要原因,因此研究冻融循环对碳纤维加固的混凝土构件的影响很有现实意义.本研究采用快速冻融试验的方法,分析冻融循环对混凝土梁及碳纤维加固梁的性能影响.试验研究显示碳纤维基本能够满足寒冷地区的加固要求.更多还原

【Abstract】 FRP(Fiber Reinforced Plastics)has been increasingly used to repair structures in civil engineering.Although CFRP has been used Unielel its long-term performance of reinforced is uncertain.freeze-thaw clamage is the main reason for the destruction of concrete structures in the wet environments in the cold areas of North China.Therefore it is very important to study the influence of the freeze-thaw cycle on the concrete structures reinforced by CFRP.The paper ist adgrts the fast freeze-thaw tests and then analyes,the influence of freeze-thaw action on the concrete beams and the concrete beams reinforced by CFRP.The experiment data indicates that the properties of CFRP could basically meet the reinforcing requirements in the cold regions.更多还原