Question
Download Solution PDFA steel column pinned at both ends has a buckling load of 200kN. If the column is restrained against lateral movement at its mid-height, its buckling load will be
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe buckling load (Pcr)of a steel column is
where EI = flexural rigidity, Leff = effective length of the column
The effective length of a column (Leff)
It is the length of the column between points of zero moments.
IS:800 – 2007 uses ‘L’ for unsupported length and ‘kL’ for an effective length
where
Calculations:
The buckling load (P1) of a steel column pinned at both the ends is (Leff = L)
When the column is restrained against lateral movement at its mid-height, then Leff = L/2
The buckling load (P2) of the steel column for the above case will be
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