碳纤维布加固钢筋混凝土短柱抗震性能的有限元分析

Finite Element Analysis of Short Column Shock Resistance of Concrete Reinforced with Carbon Fiber Cloth

针对碳纤维布加固钢筋混凝土短柱的破坏特征,建立了适用于反复荷载作用下钢筋混凝土材料的本构关系。考虑材料的非线性、钢筋与混凝土之间的粘结作用、碳纤维布与混凝土之间相对滑移的影响,采用APDL参数化程序设计语言编制的分析程序,分析了碳纤维布加固钢筋混凝土短柱的屈服荷载、极限荷载、破环荷载及其相应的顶点位移,计算与试验结果基本一致。

In consideration of destructive characteristics of concrete short column reinforced with a carbon fiber cloth, constitutive relationships between concrete materials under repetitive loads are established. In view of the nonlinear and cohesive action between steel and concrete and relative sliding influence between carbon fiber cloth, an analysis program created with APDL parameter-programm design language is used. The yield load, ultimate load, destructive load and related apex shift of the carbon fiber cloth reinforced concrete short column are analyzed, of which calculation is basically consistent with testing results.