陈 娟, 卢亦焱, 李 杉. 钢管钢纤维高强混凝土轴压短柱的受力分析[J]. 工程力学, 2011, 28(9): 115-121.
引用本文: 陈 娟, 卢亦焱, 李 杉. 钢管钢纤维高强混凝土轴压短柱的受力分析[J]. 工程力学, 2011, 28(9): 115-121.
CHEN Juan, LU Yi-yan, LI Shan. THEORETICAL ANALYSIS OF STEEL FIBER REINFORCED HIGH STRENGTH CONCRETE FILLED STEEL TUBE UNDER AXIAL COMPRESSION[J]. Engineering Mechanics, 2011, 28(9): 115-121.
Citation: CHEN Juan, LU Yi-yan, LI Shan. THEORETICAL ANALYSIS OF STEEL FIBER REINFORCED HIGH STRENGTH CONCRETE FILLED STEEL TUBE UNDER AXIAL COMPRESSION[J]. Engineering Mechanics, 2011, 28(9): 115-121.

钢管钢纤维高强混凝土轴压短柱的受力分析

THEORETICAL ANALYSIS OF STEEL FIBER REINFORCED HIGH STRENGTH CONCRETE FILLED STEEL TUBE UNDER AXIAL COMPRESSION

  • 摘要: 为了研究钢纤维对钢管高强混凝土短柱轴压力学性能的影响,对7根钢管钢纤维高强混凝土短柱和3根钢管高强混凝土短柱进行了轴心受压试验。根据试验中测得的钢管横向应变和纵向应变结果,采用内力分解法分析了钢管与钢纤维高强混凝土的应力变化以及两者之间的相互关系。结果表明:钢纤维对钢管高强混凝土短柱的横向变形影响较大,掺入钢纤维能有效提高核心混凝土的抗压强度提高系数,进而提高钢管钢纤维高强混凝土短柱的极限承载力。

     

    Abstract: A total of 7 short steel fiber reinforced high strength concrete filled steel tube columns and 3 short high strength concrete filled steel tube columns are tested under axial compression load to analyze the influence of steel fiber on the compression behavior of the high strength concrete filled steel tubes. Based on results of the transverse stress and strain of steel tube, the relationship between steel tube and steel fiber reinforced concrete stress is analyzed. The results show that the raising coefficient of core concrete strength is increased due to the reinforcement effect of steel fiber, giving raise to the ultimate capacity of steel fiber reinforced high concrete filled steel tube. Moreover, steel fiber has great effect on the transverse deformation of high strength concrete filled steel tube short columns.

     

/

返回文章
返回