1

where p1 and p2 are the fixity factors. For hinged connections, both the fixity factors, p, and the rigidity index, R, are zero; but for rigid connections, the fixity factor is 1 and the rigidity index is infinity. Since the fixity factor can only vary from 0 to 1.0, it is more convenient to use in the analyses of structures with semirigid connections.

Equation 2.146 can be rewritten to give

0 0

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