The long-term behavior of bonding surface of concrete beams reinforced with carbon fiber sheets,especially,the fatigue behavior under long-term load is the key factor for its successful use.The experimental investigation was conducted about the fatigue behavior of reinforced concrete beams strengthened with carbon fiber sheets after creep.It is shown that the reinforced concrete beams strengthened with carbon fiber sheets have better fatigue behavior.The deflection of strengthened beams which had not crept reduce 9%~18% to that of beams which had not crept.The deflection of strengthened beams ...