影响锈蚀钢筋混凝土梁承载力性能因素的非线性有限元分析

Nonlinear Finite Element Analysis of Steel Corrosion Damage to the Bearing Behavior of R.C.Girder

建立了锈蚀钢筋混凝土梁的有限元分析模型,并利用非线性弹簧单元模拟锈蚀钢筋与混凝土之间的粘结滑移性能,分别讨论了纵向钢筋直径、混凝土保护层厚度、混凝土强度等级对锈蚀钢筋混凝土梁承载力的影响,为进一步的工程应用提供参考。

Finite element analysis model is built to study steel corrosion damage to R.C. girder; nonlinear spring unit is used to imitate the bonding and slipping actions between steel bar and concrete; how the diameter of longitudinal steel, thickness of concrete cover and grade of concrete strength affeet bearing behavior of corrosion R.C. girder is discussed respectively in the paper, which may provide reference for the further engineering application.