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Bearing Pressure and Design of Rectangular Steel Tubular Column Baseplate under Concentric Loadings  

Lee, Seung Joon (아주대 건축학부)
Kim, Jeong Hyun (아주대 건축학부 대학원)
Publication Information
Journal of Korean Society of Steel Construction / v.16, no.4, 2004 , pp. 463-470 More about this Journal
Abstract
In this study, the bearing pressure distribution and design method of rectangular steel tubular column base plates under concentric loading were investigated. In general, the size and thickness of the baseplate are determined with the assumption that the bearing pressure of the column baseplate is uniformly distributed. When the column is loaded lightly, however, the size of the baseplate becomes smaller, the thickness becomes thinner and the bearing pressure of the baseplate is not distributed evenly. In this study, the distribution of the bearing pressure was investigated using the experimental and analytical methods. Four test specimens of the rectangular steel column baseplate were fabricated and tested. The analysis of the specimens was done using the finite element analysis program ANSYS. The result was that it was appropriate to use the effective width method to design the lightly loaded column baseplate, because the bearing pressure was not distributed evenly and was only concentrated under the column section.
Keywords
Steel Tubular Column; Steel Base; Base Plate; Bearing Pressure; Effective Width;
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