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Static behavior of T-shaped concrete-filled steel tubular columns subjected to eccentric compressive loads

机译：T形钢管混凝土柱承受偏心压缩载荷的静力性能

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摘要

Special-shaped column frame structures improve residential architectural space, by eliminatingrnthe exposure of column corners to indoor space. Due to improvement in constraint effect for concrete, specialshapedrnConcrete-Filled Steel Tubular (CFST) columns are expected to have advantages in mechanical behavior.rnIn the meanwhile, steel plates’ premature local buckling and concave corner’s separation between steel tube andrnconcrete should be given more attention. The tensile bar stiffener, welded on inside tube surfaces, was introducedrnin this paper. Experimental study of 4 T-shaped columns subjected to eccentric compressive loads was carriedrnout. Parametric impact analysis was emphasized on the constraint effect, the eccentricity and the specimenrntype. Failure modes and static mechanical properties were investigated. Experimental results showed that: therntensile bar stiffener effectively restrains the deformation at welds of steel plates and concave corners; the CFSTrnspecimens are provided with better comprehensive mechanical performance, especially for the stiffened CFSTrnspecimens.
机译：异型柱框架结构通过消除柱角暴露于室内空间来改善住宅建筑空间。由于混凝土约束效果的改善，异形混凝土钢管（CFST）柱有望在力学性能方面具有优势。rn同时，应注意钢板的过早局部屈曲和凹角在钢管与混凝土之间的分离。本文介绍了焊接在管内表面上的拉伸钢筋。进行了4个T形柱承受偏心压缩载荷的试验研究。重点分析了约束效应，偏心率和标本类型的参数影响分析。研究了失效模式和静态力学性能。实验结果表明：拉筋增强剂有效抑制了钢板和凹角焊缝的变形。 CFSTrn标本具有更好的综合机械性能，尤其是对于加硬的CFSTrn标本。

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  • 来源
    《Tubular structures XIV》|2012年|59-64|共6页
  • 会议地点 London(GB)
  • 作者

    H.Yang; S.M. Zhang; Y.L.Yang;

  • 作者单位

    Harbin Institute of Technology, Harbin, China;

    Harbin Institute of Technology, Harbin, China;

    Key Laboratory of Mechanics on Disaster and Environment inWestern China Ministry of Education, Lanzhou, China Lanzhou University, Lanzhou, China;

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