• failure of cylindrical steel silos composed of corrugated sheets and columns and repair methods using a sensitivity analysis

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 985
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
      the paper deals with failure of large cylindrical steel silos composed of horizontally corrugated sheets with vertical stiffeners. the failure reasons were discussed. a linear buckling and a non-linear analysis with geometric and material non-linearity were carried out with a perfect and an imperfect silo shell (with different initial geometric imperfections) by taking into account axisymmetric and non-axisymmetric loads imposed by a bulk solid following eurocode 1. the 3d fe calculations were carried out with the commercial finite element code “abaqus”. the calculated buckling forces were compared with the allowable one given by eurocode 3. repair methods of silos against buckling were proposed. a sensitivity analysis was performed for a silo to predict the location and profile type of strengthening elements.

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