【摘要】 为研究FRP-混凝土-钢双壁空心管长柱的轴心受压性能,完成了3根长细比分别为16.8、16.9和33.7的试件试验。试件为失稳破坏。试验结果表明,长细比增大,承载能力和变形能力下降。通过分析本文和有关文献的试验结果,提出了考虑长细比影响的双壁空心管长柱轴心受压承载力计算公式,计算结果与试验结果符合较好。更多还原

【Abstract】 To study axially loaded behavior of the FRP-concrete-steel double-skin tubular long column an experiment of 3 specimens with slenderness ratio of 16.8,16.9 and 33.7 respectively was carried out.All specimens failed due to instability.The axial compressive strength and the deformation capacity of the specimens decreased with increasing of the slenderness ratio.Based on the experimental results and correlative achievements of other literatures,an empirical formula,in which the slenderness ratio is accounted,for the axial compressive strength of FRP-concrete-steel double-skin tubular long column is proposed.The formula agrees well with the experimental results.更多还原