Question

Redundant frames may be analysed by using

• A. Castigliano's first theorem
• B. Castigliano's second theorem
• C. Moment-area theorem
• D. Funicular polygon

Hint:

Remember: \[ \boxed{ \delta=\frac{\partial U}{\partial P} } \] where \(U\) is the strain energy and \(P\) is the applied load. This theorem is extensively used for the analysis of statically indeterminate structures.

Answer 1

The Correct Option is B