钢筋混凝构件的非线性混合条元分析

运用混合条元法对钢筋混凝土构件中的平面应力问题进行了非线性应力分析，计算模型考虑了混凝土的非线性特性，开裂以后的正交异性，对钢筋则考虑其屈服特性，非线性问题的求解，采用了增量迭代法，通过对钢筋混凝土连续深梁进行非线性全过程应力分析，表明混合条元法的计算成果与试验值比较是相符的，并且该方法应用于钢筋混凝土构件的非线性分析可大大减少迭代计算工作量。

Analysis on Non-linear Compound Finite Strip-Element of Reinforced Concrete Elements

Using compound finite strip element method in this paper has done the non linear stress analysis of plane stress problem in reinforced concrete elements.The mathematical model includs non linear character of concrete, orthotropy after cracking and yield characteristic of reinforcement. Non linear problem was solved by increment iteration method.Through non linear full range stress analysis of reinforced concrete continuous deep beam. It indicates that the numerical results are in good agreement with the test results, and non linear analysis of that method applying to reinforced concrete elements can greatly reduce iterative computing work.