混凝土
混凝土
혼응토
CONCRETE
2009年
7期
4-7,10
,共5页
钢管高强混凝土组合柱%轴心抗压性能%应力-应变曲线%数值分析
鋼管高彊混凝土組閤柱%軸心抗壓性能%應力-應變麯線%數值分析
강관고강혼응토조합주%축심항압성능%응력-응변곡선%수치분석
high strength concrete-filled steel tube composite column%centric axial compressive behavior%strens-strain curve%numerical analysis
为研究钢管高强混凝土组合柱的轴心抗压性能,利用高强混凝土和钢管混凝土本构关系,对组合柱轴心抗压受力全过程进行了数值计算,计算轴力-纵向应变曲线与试验结果吻合良好;并与钢筋混凝土柱进行了对比,定量分析了套箍指标、混凝土强度和配箍特征值对轴压承载力和纵向应变延性的影响.
為研究鋼管高彊混凝土組閤柱的軸心抗壓性能,利用高彊混凝土和鋼管混凝土本構關繫,對組閤柱軸心抗壓受力全過程進行瞭數值計算,計算軸力-縱嚮應變麯線與試驗結果吻閤良好;併與鋼觔混凝土柱進行瞭對比,定量分析瞭套箍指標、混凝土彊度和配箍特徵值對軸壓承載力和縱嚮應變延性的影響.
위연구강관고강혼응토조합주적축심항압성능,이용고강혼응토화강관혼응토본구관계,대조합주축심항압수력전과정진행료수치계산,계산축력-종향응변곡선여시험결과문합량호;병여강근혼응토주진행료대비,정량분석료투고지표、혼응토강도화배고특정치대축압승재력화종향응변연성적영향.
To study the centric axial compressive behavior of high strength concrete filled steel tube composite columns,numerical analysis of the whole process of composite columns subjected to centric axial compressive loading was conducted,by using the constitutive laws of high strength concrete and concrete-filled steel tube.Tbe numerical results agreed well with the experimental results.Comparison analysis between the behavior of composite columns and reinforced concrete columns were carried out.The influence of confinement index,concrete strength and stirrup characteristic value on the ceturic axial bearing capacity of composite columns was analyzed quantitatively.
