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Example Description
This example uses a three-hinged arch to test static nonlinear analysis with large axial displacements in this model. A concentrated vertical downward load, P, is applied to the center joint of the three-hinge arch. The load P is increased until the vertical downward deflection at the center joint reaches one foot. The resulting vertical support reaction at joint 1 is compared with independent hand calculated results.
Tested Features
- Static nonlinear analysis of frame structure with large axial displacements using this model P-Delta plus large displacements option
- Frame end releases
AppLibrary
Object Link: https://openbrimbim.org/objidrb1oksxf3zpbgpwdvirf.project
Library
Object Link: https://openbrim.org/objid2j82y2ff0t6g1vsrsyw65paecbolt.com/objida630sui45du0rp5nfks3cn.libobj
Output Parameter | OpenBrIM | SAP2000 | Independent | Percent Difference (SAP2000 vs Independent) | Percent Difference (OpenBrIM vs Independent) |
---|---|---|---|---|---|
Fz (jt 1) kip | 3497 | 3497 | 3497 | 0% | 0% |