预应力CFL增强RC梁有效预应力研究

粘贴预应力纤维增强复合材料（FRP）对土木建筑结构进行加固和修复，可以提高工程效率，改善构件的受力状况.有效预应力是预应力研究领域中最为关键的参数.本文以碳纤维薄板（CFL）加固RC梁为研究对象，进行理论研究计算有效预应力和采用间接预应力施加方法进行预应力CFL增强RC实验并测得有效预应力。并将理论计算结果与实验结果进行了比较，两结果大体上比较接近，理论计算结果较实验值偏大。

Study on effective prestress of RC beams strengthened with prestressed CFL

The application of bonded carbon fiber reinforced polymer (FRP) to the exposed faces of concrete members provides an efficient, light-weight, non-corrosive alternative to other rehabilitative methods. The method of using prestressed CFL for strengthening structures is efficient with the advantages of external prestress. Effective prestress is a key parameter in prestress field. Based on RC beams strengthened by carbon fiber laminate(CFL), this paper give the Theoretical formula for calculating the effective prestress and the experimental results by having experimental programs of RC beams strengthened with prestressed CFL indirectly. the two results are closed to each other in general and the theoretical results are larger than the experimental data .