Volume 23 Issue 12
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YE Jun, ZHAO Yang, YU Ji. THE EFFECT OF INITIAL GEOMETRIC IMPERFECTIONS ON STABILITY BEHAVIOR OF COLUMN-SUPPORTED STEEL SILOS WITH ENGAGED COLUMNS[J]. Engineering Mechanics, 2006, 23(12): 100-105.
Citation: YE Jun, ZHAO Yang, YU Ji. THE EFFECT OF INITIAL GEOMETRIC IMPERFECTIONS ON STABILITY BEHAVIOR OF COLUMN-SUPPORTED STEEL SILOS WITH ENGAGED COLUMNS[J]. Engineering Mechanics, 2006, 23(12): 100-105.
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THE EFFECT OF INITIAL GEOMETRIC IMPERFECTIONS ON STABILITY BEHAVIOR OF COLUMN-SUPPORTED STEEL SILOS WITH ENGAGED COLUMNS

  • Space Structures Research Center, Zhejiang University, Hangzhou 310027, China;2. Zhejiang Chengjian Design Institute, Hangzhou 310006, China

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  • Received Date: March 25, 2005
  • Revised Date: May 25, 2005
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  • Supporting silo walls directly on engaged columns provides a simple and cost-effective support arrangement for light steel silos. Thin shell structures are generally very sensitive to initial geometric imperfections. By introducing two patterns of imperfections including circumferential weld depressions and eigenmode-affine imperfections, the effect of initial imperfections on stability behavior of axially compressed column-supported steel silos with engaged columns is investigated through geometrically nonlinear analyses. It has been shown that circumferential weld depressions lead to a significant reduction in the buckling load which is closely related to the welding location, while eigenmode-affine imperfections affect the buckling load remarkably only when the engaged columns extend to the top of the silo wall.
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