锈蚀钢筋混凝土柱承载力的计算模型

Computational Model for Bearing Capacity of Corroded Reinforced Concrete Columns

基于锈蚀钢筋与混凝土的粘结退化模型,分析了钢筋锈蚀对钢筋混凝土柱承载力计算模式和破坏模式的影响,建立了锈蚀钢筋混凝土柱抗压承载力的计算模型.利用一些近年来文献上有关钢筋混凝土锈蚀柱承载力的试验数据,对计算模型进行了验证,并取得了较好的吻合度.可以为锈蚀柱的承载力分析提供可靠的理论预测.

According to a bond degenerative model between concrete and steel, the influence of corroded steel on the calculated model and failure mode of the reinforced concrete columns was studied and a computational model was established to evaluate the bearing capacity of corroded reinforced concrete columns. The variation of the steel cross section and the mechanical properties, the reduction of member effective cross section were considered. Some recent experimental data were also used to verify the present model. The model is satisfactory which can offer reliable theoretical prediction for analyzing the bearing capacity of corroded reinforced concrete columns.