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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.
Report
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Attachments
SAP2000 V14.2.4 model (zipped SDB file)
Metadata
Name: Hinge response when yield point changes
Description: Behavior of a concentrated plastic hinge when the loading applied to a nonlinear frame object causes the yield point of the interaction surface to change position.
Program: SAP2000
Program Version: 14.2.0
Model ID: na
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