Abstract
Fixity and behaviour of steel column base connection have been studied in the current investigation. Effects of components such as base plate, anchor bolts and stiffeners have been considered throughout a numerical study. A non-linear three dimensional finite element model has been utilized to simulate the column base connection. It is shown that in addition to the rigidity of the column base, behaviour such as moment-rotation property and stress distribution can be significantly influenced by altering the properties of its components. Besides, the upper and lower bounds for rotational stiffness and ultimate strength of column base connections were obtained and categorized. Analytical results indicate that by choosing a minimum thickness for base plate, appropriate size of stiffeners and careful arrangement of anchor bolts, a realistic and accurate design is reachable for both nominally fixed or pinned base plate.
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Razzaghi, J., Khoshbakht, A. Numerical evaluation of column base rigidity. Int J Steel Struct 15, 39–49 (2015). https://doi.org/10.1007/s13296-015-3003-7
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DOI: https://doi.org/10.1007/s13296-015-3003-7