(同济大学结构工程与防灾研究所  上海  200092)
【提要】  完成了3个碳纤维布加固钢筋混凝土梁的疲劳试验，2个加固梁的静载试验以及对比试验各1个。疲劳荷载试验表明,用碳纤维加固钢筋混凝土梁正截面有较好的效果，能提高梁的耐疲劳性能，碳纤维的疲劳验算可采用现行规范的方法进行，并提出了相应的设计方法。
【关键词】  碳纤维布  加固  疲劳  设计
Design Method of RC Beam Confined with CFRP Sheets Under Bending Moment According to Fatigue Behavior/Chen Yongxiu, Lu Zhoudao (State Key Laboratory for Disaster Reduction in Civil Eng.，Tongji Univ.，Shanghai 200092，China)
Abstract:Four reinforced concrete beams bonding carbon fiber sheets are tested under bending moment according to fatigue behavior.The result shows that, strengthening beams with CFRP sheets can increase the fatigue bearing capacity of the beam under bending moment,and the relative code can be used to calculate the fatigue capacity. The design method of fatigue bearing capacity of normal section is established.
Keywords: carbon fiber sheet; strengthening; fatigue; design