考虑锈蚀影响的型钢混凝土中长柱的数值模拟研究  

Numerical simulation study of steel reinforced concrete middle-length columns considering the effect of corrosion

作　　者：孔娟萍 KONG Juanping(Xiamen Siming Urban Construction Group Co.,Ltd.,Xiamen 361000)

机构地区：[1]厦门思明城建集团有限公司,福建厦门361000

出　　处：《福建建筑》2024年第11期38-43,共6页Fujian Architecture & Construction

摘　　要：氯盐腐蚀导致型钢混凝土中长柱腐蚀的问题日益突出。通过ABAQUS有限元软件建立考虑腐蚀影响的型钢混凝土中长柱数值分析模型,并与试验结果相比较验证了模型的准确性,建立了锈蚀型钢与混凝土之间的粘结滑移本构关系,讨论了长细比与锈蚀率对轴心受压下型钢混凝土中长柱粘结应力的影响,对比了Spring2弹簧单元与罚摩擦两种粘结滑移模拟方法。The problem of corrosion of middle-length columns in steel reinforced concrete caused by chloride salt erosion is becoming more and more prominent.This study established a numerical analysis model for steel reinforced concrete middle-length columns considering the influence of corrosion using ABAQUS finite element software,and verified the accuracy of the model by comparing it with experimental results.The bond slip constitutive relationship between corroded steel bars and concrete was established.The influence of aspect ratio and corrosion rate on the bond stress of steel reinforced concrete middle-length columns under axial compression was discussed,and two bond slip simulation methods,Spring2 spring element and penalty friction,were compared.

关 键 词：氯盐腐蚀 型钢混凝土中长柱 有限元模拟 

分 类 号：TU3[建筑科学—结构工程]