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Homework Statement
A uniform curved beam ABC of radius R is fixed at C and is free at end A, and carries a vertical load W at B, as shown in Fig. 3.2. Considering only bending action of W, derive expressions for the vertical and horizontal displacements as well as the rotation at end A in terms of W, R and flexural rigidity EI of the beam. Ignore the self-weight of the beam.
Use unit load method, 1. U * .
Homework Equations
I had uploaded the qns and solution provided, but there is one part where moment about AB =0 which i do not understand.
The Attempt at a Solution
I understand the whole solution except for one part, which is moment about AB for real load analysis.Why is it 0 and not WRcostheta? Thanks in advance : )