The 'stiffness' of a member in the moment distribution method (when far end is fixed) is defined as:
Choose the correct answer
K = EI/L
K = 4EI/L (far end fixed); K = 3EI/L (far end pinned)
K = 2EI/L always
K = EI/L² for all cases
Correct Answer
B. K = 4EI/L (far end fixed); K = 3EI/L (far end pinned)
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Stiffness K = 4EI/L when far end is fixed. K = 3EI/L when far end is simply supported (pinned). Carry-over factor = 0.5 (to fixed end) or 0 (to pinned end). Distribution factor DF = K_member/Σ(K at joint). These values are derived from the slope-deflection equations with appropriate boundary conditions.
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