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为研究FRP管实心混凝土柱的受力性能,完成了10根柱的承载力轴压试验。参照试验结果分析了纤维铺设角度、混凝土强度对FRP管实心混凝土柱破坏形态、极限承载力和延性的影响。结果表明,柱的承载力随着纤维铺设角度的增大而减小,随着混凝土强度的提高而增大,但柱的极限应变均有所下降;FRP管实心混凝土短柱发生强度破坏,FRP管实心混凝土长柱发生失稳破坏。此外,试验得到的关系曲线还反映了FRP管实心混凝土柱的受力、变形情况,可为FRP管实心混凝土柱的深入研究提供参考。
In order to study the mechanical properties of FRP pipe solid concrete columns, the axial compression test of 10 columns was completed. The influence of fiber laying angle and concrete strength on failure mode, ultimate bearing capacity and ductility of FRP pipe solid concrete columns were analyzed based on the test results. The results show that the bearing capacity of the column decreases with the increase of the fiber lay angle and increases with the increase of the concrete strength, but the ultimate strain of the column decreases. The strength of the FRP pipe solid concrete short column breaks down and the FRP Pipe solid concrete long column instability damage. In addition, the experimental curves obtained also reflect the stress and deformation of FRP pipe solid concrete columns, which can provide reference for the further research on FRP pipe solid concrete columns.