论文部分内容阅读
对配筋钢管混凝土柱的轴心受压性能进行了试验研究和理论分析;研究了配筋钢管混凝土短柱的受力性能、变形能力和破坏形态,给出了变形和极限承载能力的试验结果;分析了加配钢筋的作用及其对钢管混凝土柱变形和极限承载力的影响。最后探讨了配筋钢管混凝土短柱轴心受压承载力的计算方法,给出了简化计算公式。结果表明,钢管混凝土短柱加配钢筋以后,改变了其破坏形态,提高了其极限承载能力和变形性能。
The axial compressive behavior of steel reinforced concrete filled steel tubular column was studied experimentally and theoretically. The mechanical properties, deformation capacity and failure mode of the concrete filled steel tubular short column were studied. The experimental results of deformation and ultimate bearing capacity The effect of steel reinforcement and its effect on the deformation and ultimate bearing capacity of CFST columns were analyzed. Finally, the calculation method of axial compressive bearing capacity of CFST short columns is discussed, and a simplified calculation formula is given. The results show that after the short reinforcement of concrete-filled steel tube (CFST) is added with rebar, its failure mode is changed and its ultimate bearing capacity and deformation performance are improved.