【摘要】 基于连续损伤理论,考虑胶层的剪切效应,建立FRP加固钢筋混凝土梁的高阶剪切弯曲及面内变形耦合模型,编制了有限元分析的软件,进行非线性有限元分析;通过与已有的试验结果进行对比,证明该模型的简单,有效性;利用该软件对未加固混凝土梁,初始进行加固的混凝土梁以及最大拉应变达到极限值时进行加固的混凝土梁等几种情况进行数值模拟。更多还原

【Abstract】 Based on the continuous damage theory, considering the shear effect, the high-order shearing , flexural and in-plane deformation coupling model is built; through the nonlinear FEM analysis of RC beams strengthened with FRP , the damage theory and damage course is researched; Compared with experiment results, it shows that the model is effective; The FEM analysis software is prepared to provide simple and effective method for the engineering application; using the soft the FRP strengthened beams before and after damage is modeled so as to provide the theory base for engineering application.更多还原