碳纤维加固混凝土梁的数值模拟计算

为了建立碳纤维加固的钢筋混凝土梁的有限元非线性模型,采用ANSYS对碳纤维加固的钢筋混凝土梁进行数值建模计算.介绍了非线性有限元模拟碳纤维加固混凝土梁的方法,解决了采用有限元求解碳纤维加固混凝土梁非线性数值不容易收敛的问题,并且数值计算结果与试验结果吻合.结果表明所建立的有限元模型是合理的,该模型能准确地模拟出实际工程中碳纤维布加固混凝土梁的受力状态,并可对该种结构进行准确预测,为以后的数值研究工作奠定了基础,方便了日后的设计工作.

Simulation Calculation of Concrete Structure Strengthened with CFRP Sheets

In order to set up the nonlinear numerical model of the RC beams strengthened with CFRP sheets,the RC beams strengthened with CFRP sheets are simulated by the software of ANSYS,and the methods of the nonlinear numerical analysis of the RC beams strengthened with CFRP sheets are elaborated.The methods solve the difficult problem in nonlinear numerical calculation of the beam.At the same time,the result of simulation calculation coincides with the result of tests.The results show that the numerical model is accurate.And the stress state of the RC beams strengthened with CFRP sheets can been calculated by dint of the numerical model,the numerical research work may be a reference for the further research.