The fiber reinforced polymer (FRP) bars are used in hollow concrete columns (HCCs) to alleviate the steel-reinforcement corrosion problem and to make an efficient and lightweight structure. The presented study has endeavored to numerically and theoretically explore the structural behavior of hollow concrete columns (HCCs) reinforced with glass fiber reinforced polymer (GFRP) bars and spirals. Six HCCs were simulated in a commercial finite element software ABAQUS 6.14. The control finite element model (FEM) was calibrated for various variables of HCCs using the previous experimental testing results. The complex nonlinear behavior of concrete was defined using the concrete damaged plastic model (CDPM) and the behavior of GFRP bars was considered as linear elastic. The proposed FEM portrayed a close correlation with the testing results of HCCs. Moreover, the different empirical models were proposed for predicting the two-peak loading behavior of FRP-reinforced HCCs based on a large database constructed from the previous research.

纤维增强聚合物（FRP）钢筋用于空心混凝土柱（HCC）中，以减轻钢筋腐蚀问题并制成高效轻质的结构。本研究致力于在数值和理论上探索玻璃纤维增​​强聚合物（GFRP）钢筋和螺旋增强的空心混凝土柱（HCC）的结构性能。在商业有限元软件ABAQUS 6.14中模拟了六个HCC。使用先前的实验测试结果，针对HCC的各种变量对控制有限元模型（FEM）进行了校准。使用混凝土破坏塑性模型（CDPM）定义了混凝土的复杂非线性行为，而GFRP筋的行为被视为线性弹性。拟议的有限元分析描绘了与肝癌的测试结果密切相关。