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探讨了CFRP加固钢筋混凝土梁刚度和挠度的变化规律。利用挠度计算模型对10根试验梁的挠度进行了理论计算。用ANSYS结构分析程序对试验梁的挠度进行了有限元分析,并与计算值、试验结果进行了对比。研究表明:ANSYS有限元分析结果、计算结果、试验结果吻合较好;CFRP能提高混凝土梁的抗弯刚度;挠度计算模型具有较好的精度。
The variation regularity of stiffness and deflection of reinforced concrete beams strengthened with CFRP was discussed. The deflection calculation of 10 test beams is theoretically calculated by using the deflection calculation model. ANSYS structural analysis program was used to analyze the deflection of the test beam by finite element method and compared with the calculated value and test results. The results show that: ANSYS finite element analysis results, calculation results and experimental results agree well; CFRP can improve the flexural rigidity of concrete beams; deflection calculation model has good accuracy.