EFFECT OF INITIAL IMPERFECTION ON MECHANICAL PROPERTY OF STUB COLUMNS OF SQUARE CONCRETE-FILLED THIN-WALLED STEEL TUBES
-
摘要: 考虑初始缺陷的影响,采用通用有限元软件ABAQUS对薄壁方钢管混凝土轴心受压构件的力学性能进行分析,并将计算结果与试验结果进行比较,结果表示二者基本吻合。在此基础上,对不同参数条件下初始缺陷对薄壁方钢管混凝土轴心受压构件力学性能的影响进行分析。Abstract: By considering the effect of initial imperfection,ABAQUS software is used to perform nonlinear finite element analysis of behaviour of square concrete-filled thin-walled steel tubes under axial compression.The calculated load-deformation curves are in good agreement with those of tests.The effects of imperfection under different conditions on the behaviour of thin-walled composite columns are analyzed.
-
Key words:
- concrete-filled steel tube /
- thin-walled /
- axial compression /
- local buckling /
- bearing capacity /
- non-linear
-
[2] 陶忠,于清.新型组合结构柱--试验、理论与方法.北京:科学出版社,2006 韩林海.钢管混凝土结构--理论与实践.北京:科学出版社,2004 [3] 刘威.钢管混凝土局部受压时的工作机理研究:[博士学位论文].福州:福州大学,2005 [4] Gardner J,Nethercot D A.Numercial Modeling of Strainless Steel Structural Components--A Consistent Approach.Journal of Structural Engineering,ASCE,2004,130(10):1 581-1 601 [5] Teng J G,Lin X,Rotter J M,et al.Analysis of Geometric Imperfection in Full-Scale Welded Steel Silos.Engineering Structures,2005,27(7):938-950 [6] 曹宝珠.薄壁钢-混凝土组合构件静力性能研究:[博士学位论文].哈尔滨:哈尔滨工业大学,2004 [7] Wright H D.Local Stability of Filled and Encased Steel Section.Journal of Structural Engineering,1995,121(10):1 382-1 388 [8] Uy B.Local and Post-Local Buckling of Concrete Filled Steel Welded Box Columns.Journal of Constructional Steel Research,1998,47 (1-2):47-72
点击查看大图
计量
- 文章访问数: 133
- HTML全文浏览量: 13
- PDF下载量: 115
- 被引次数: 0