INA在钢筋混凝土非线性有限元分析中的应用

he application in the finite element analysis of the reinforced concrete Structure in ADINA is discussed, constitutive model and failure criterion of concrete in ADINA are introduced in detail, the method of variable choosing is confirmed. A four-pile reinforced concrete thick pile cab is analyzed by nonlinear finite element method. It is found by comparing the calculative result in the text to the result of reference[1] that force-displacement of the pile cab bottom center, crack distribution manner, longitudinal reinforcement’s force-axial force curve are in coincidence to the results of examination. It shows that the analysis of concrete reinforced nonlinear finite element by ADINA can satisfy engineering demand.