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Exam details
A structure where all internal forces and reactions can be determined using equilibrium equations alone (ΣF=0, ΣM=0), without needing compatibility or material properties.
The number of redundant forces beyond those solvable by static equilibrium; calculated as the total unknowns minus the number of independent equilibrium equations.
It solves for member end moments in statically indeterminate beams and frames by iteratively distributing unbalanced moments at joints until equilibrium is reached.
The stiffness factor is k = 4EI/L for a far-end fixed member or k = 3EI/L for a far-end pinned member, where E is modulus, I is moment of inertia, and L is length.
It is 0.5 for a member with a fixed far end, meaning half the distributed moment at the near joint is carried over to the far joint.