【摘要】 通过9根外包角钢与碳纤维布复合加固钢筋混凝土中长柱轴心受压试验,把复合加固柱核心混凝土分成有效约束区和弱约束区,研究了有效约束区和弱约束区混凝土的本构关系.在此基础上,把柱截面划分成若干计算单元,编制了全过程分析程序进行数值模拟计算.研究表明,计算结果与试验结果吻合较好,可为工程应用提供参考.更多还原

【Abstract】 Nine slender reinforced concrete columns strengthened with a combination of CFRP and angle steel are tested through axial compression.Core concrete of the columns is divided into effectively confined region and weakly confined region.The constitutive relationship of models for the effectively confined and weakly confined concrete are presented.Based on the theoretical analysis,the sections of the columns are divided into some calculation units,and the full-course analysis program for numerical simulationis presented.The results indicate that the load-displacement curves calculated from the full-course analysis program are in agreement with the results of the experiment.It can provide a referencefor engineering application.更多还原