李云云
    （内蒙古科技大学建筑与土木工程学院，包头014010）

[摘要] 通过钢骨高强混凝土柱的承载力试验和在低周反复水平荷载作用下的试验研究，分析了长细比对柱受力性能的影响以及轴压比、配箍率及钢骨形式对柱抗震性能的影响。由试验得出钢骨高强混凝土长柱的承载能力随试件长细比的增大而降低，随混凝土强度等级的提高而提高，破坏的突然性随长细比的增大而俞益明显；另外，研究发现钢骨高强混凝土柱的抗震性能除对轴压力系数敏感外，钢骨形式也是一个重要的影响因素，对于钢骨形式不同的钢骨高强混凝土柱，可适当调整其轴压力系数限值，而配箍率的影响则并不显著。
[关键词] 钢骨高强混凝土；柱；轴压力系数；长细比
中图分类号：TU398.7    文献标识码：A  文章编号：1002-848X(2011) S2-0156-03

    Study on behaviors of steel reinforced high-strength concrete columns
    Li Yunyun
( College of Arclutecture & Civil Engineering, Inner Mongolia Uruversity of Science&Technology, Baotou 014010, China)

Abstract: By the test on bearing capacity and level load of low cycle reverse of steel reinforced high-strength concrete columns, the influences on behaviors of the columns under different slendemess ratio and on anti-seismic behavior of the columns under different axial compression ratio, stirrup ratio and steel form, were analyzed. The test results show that bearing capacity of the long columns reduces along with the slendemess ratio increasing and augments along with concrete strength increasing, and the probability of suddenly destruct mcreases along with the column slendemess ratio augmenting. In addition, anti-seismic of the behavior columns is effected not only by axial compression ratio, but also by steel form. Axial compression ratio of the steel reinforced high-strength concrete columns with different steel form may be adjusted, however the influence of stirrup ratio is very little on anti-seismic behavior of columns.
Keywords: steel reinforced high-strength concrete; column; axial compression ratio; slendemess ratio