GFRP管钢筋混凝土短柱力学性能研究

为研究GFRP管钢筋混凝土短柱的力学性能,对14根GFRP管钢筋混凝土短柱和2根无套管短柱进行轴压试验,通过试验,分析了影响套管钢筋混凝土短柱的部分因素,试验结果表明：对于在不同受力方式下的试件,其承载力与变形能力都基本相同;GFRP管有很强的约束能力,由于GFRP管的约束,使得混凝土的强度得到明显的提高,变形能力也得到明显的增加;对于配置有纵筋的试件,既可以提高试件的承载力,又可以避免核心混凝土发生剪切破坏。

Research on dynamic performance of reinforced concrete short-column in GFRP pipe

In order to research the dynamic performance for the reinforced concrete short-column in GFRP pipe,the paper undertakes the axial compression tests on fourteen reinforced concrete short-columns in GFRP pipe and two non-casing short-columns,analyzes the partial factors which influence the casing reinforced concrete short-column by the tests,and proves by the tests results that its loading capacity is nearly consistent with the deformation ability for the trial parts in various stressed ways,indicates GFRP pipe has strong constrain capacity,so the concrete strength can be improved obviously because of the restrain from the GFRP pipe,and illustrates the trial parts with the longitudinal bar can not only improve the loading capacity of the trial parts,but also avoid the shear damage from the core concrete.