The ultimate fatigue strength is 25.42 kN obtained from fatigue life curve of CFL strengthened RC beams,which is about 58.5 percent of the ultimate loading under static loading.

• 根据CFL增强RC梁的疲劳寿命曲线得到其极限疲劳强度为25.；42 kN；为三点弯曲静载下极限承载力的58