基于ANSYS的钢筋混凝土梁非线性分析若干问题研究

摘要

The several problems about the nonlinear analysis of RC beams are analyzed and summarized here based on ANSYS, such as the dement selection, the constitutive relationship of materials, the acceleration of convergence, etc. The nonlinear analysis is carried out for a RC beam by using ANSYS. The relationship of load and middle span deflection, and the development of stiffness and cracks in the RC beam are analyzed. The analysis results could provide a basic advice for similar cases.%基于ANSYS软件,分析总结了钢筋混凝土梁非线性有限元分析中需要正确处理和解决的诸如单元选择、材料本构关系、加速收敛等若干问题,用ANSYS对一钢筋混凝土简支梁进行非线性分析,研究梁荷载与跨中挠度关系、刚度变化及裂缝发展形态,为类似的模拟分析提供可靠的理论依据.