steelTOOLS

STEPCOL

01-07-2010 08:31

Stepped column analysis for determining effective lengths and effective length K factors. These types of columns and configurations are most often used in mill-type buildings involving bridge cranes. While the material is a bit dated, this tool should still prove useful for estimates of required stepped column sizes and configurations.

#ASD9 #Columns #AISC

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04-30-2013 16:27

Regarding the 2013 update to Version 1.1, the author states:
In the "STEPCOL.xls" spreadsheet workbook, the effective length factors for the upper and lower shafts, K1 and K2, were expressed relative to the total column length, LT = L1+L2, as was done in the reference documents. This has caused a bit of confusion for some people, so I added the effective length factors, K1 and K2, expressed relative to the individual lengths of the upper shaft (L1) and the lower shaft (L2).