This test problem evaluates hinge response when the yield point on the interaction surface changes. Since the yield point is defined by coordinates which couple axial and bending behaviors, post-yield changes in loading conditions will also cause the yield point to change.

For evaluation, a concentrated hinge is assigned to the fixed end of a cantilever beam. A moment and axial-compressive force are applied to the free end. Hinge response is then reviewed for a series of several load sequences which are assigned to a time-history load case.

The attached PDF file presents analysis details and results. Also attached is the SAP2000 model used to conduct analysis.

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