Correct Answer - Option 1 : Fixed at one end and free at the other end
Concept:
Effective length is defined as the distance between two adjacent points of zero bending moment or contra flexure.
The value of the effective length varies according to the support condition.
End condition
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Both ends hinged
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One end fixed other free
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Both ends fixed
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One end fixed and other hinged
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Effective length
|
L
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2L
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L/2
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L/√2
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According to Euler's column theory, the crippling load for a column of length L,
\({P_{cr}}= \;\frac{{{\pi ^2}EI}}{{{{\left( {L_e} \right)}^2}}}\)
Where Leq is the effective length of the column.