Secondly , the author compares the two strengthening means in two aspects . they are mechanical property and the convenient of construction . it can be used for reference in selecting strengthening scheme 比较涉及加固梁的力学性能、施工易用性等多个方面，以期对实际加固工程方案的选取提供借鉴。
By investigating technics of strengthening of concrete beams and grasping of the quality , we can have conclusion that cfrp technology is believed to be very useful for expressway practicing engineering 通过对cfrp加固梁施工工艺及质量控制的研究，可以证明这是一种能够广泛应用于高速公路桥梁维修的新技术。
According to the formula given by the " the rules of operation " , to get the precision result , the rot of the steel and reinforcement ratio can ' t be omitted 根据规程给出的二次受力公式，通过加固前后的比较得到了，对于碳纤维加固梁，钢筋的腐蚀及配筋率对于承载力的影响比较明显，会降低承载力，所以加固时必须考虑钢筋梁的腐性情况。
At last , finite element analysis ( fea ) is done by using software ansys , and the fea results indicates that the cfrp increases the ultimate flexural capacity of the strengthening beam . all these agree with the test results 最后，利用ansys分析软件对加固梁进行了模拟分析，表明加固梁的抗弯极限承载力得到了提高，与试验结果是一致的。
However , this newly arisen method is associated with brittle debonding failure modes - flexural strength of the compound beams without omen cannot reach that under ductile failure modes , even that of unreinforced members 然而，这个新兴的技术却时常受到粘结破坏的困扰? ?没有破坏征兆，而且不能达到适筋破坏梁的承载力，甚至低于未加固梁的承载力。
But because there are shearing stress and removing stress on the gluing plane between the steel plates and concrete , the phenomenon of premature removing of the steel plates in the strengthen beams is easy to take place 但是，由于钢板和混凝土粘结面上存在粘结剪应力和剥离拉应力，使粘钢加固梁容易发生钢板端部和弯剪区段跨中的早期剥离破坏现象。
The results of experimental program clearly indicate that significant strengthening of reinforced concrete beams can be realized by bonding cfrp to the tension face of the beaxn , meanwhile the ductibility of beams decreased 观察了加固后梁的破坏形式，对破坏形式进行了分析。试验结果显示：外贴碳纤维对梁的正截面抗弯能力有明显提高，加固梁的刚度增加而延性降低。
The load - displacement curves and moment - curvature curves that calculated from the full - course analysis program are in accordance with the resuits of experimental especially in prime period of ioad presents the program is avaiiable 试验和全过程分析得到的荷载-挠度曲线对比表明：在加载前期两者的曲线吻合较好，证明全过程分析能反映碳纤维加固梁的受力特点及程序的正确性。
Meanwhile , the results of program show that , under secondary load , the bonding - reinforced beams " yield - moment would decrease as the original load increase , but the original load would n ' t remarkably influence the ultimate flexural capacity 同时，程序计算结果表明，加固梁在二次受力的作用下，屈服弯矩随着初始荷载的增加而减小，但极限抗弯承载力受初始荷载影响较小。
Third , the paper theoretically analyzes basic design theory of flexure strengthened rc beam . the model and mechanism of debonding failure for strengthened beam are explored primarily . at the same time , the maximum and 然后，论文从理论上分析了抗弯加固设计的基本原理；初步探讨了混凝土加固梁两种粘结剥离破坏模型及其破坏机理；通过理论分析首次提出了最大贴布率的概念。
