通过碳纤维布加固混凝土梁和未加固梁模型的受弯性能对比试验 ,研究了初始弯矩大小对极限承载力、刚度、裂缝形态的影响 ,为碳纤维布加固混凝土桥面板工程的实际应用提供了依据 By comparing the flexural behavior of RC beams strengthened with carbon fiber reinforced plastic (CFRP) and unbonded beams, the influence of initial bending moment on ultimate bearing capacity, stiffness and crack morphology was studied, which provided the basis for the practical application of CFRP sheets in strengthening concrete bridge deck