1st order nonlinear - Displacement loading of a plane frame

Tekla Structural Designer
2020
Tekla Structural Designer

1st order nonlinear - Displacement loading of a plane frame

Problem definition

Calculate the reaction forces of the plane moment frame shown below with the applied displacement U.

Assumptions

All elements are constant and equal EI. Axial and shear deformations are ignored; to achieve the former - analytically the cross sectional area was increased by a factor of 100,000 to make axial deformation negligible.

Key results

Results were compared with two other independent analysis packages.

Result Comparison 1 Comparison 2 Solver value
LHS Vertical Reaction 6.293 6.293 6.293
LHS Moment Reaction -906.250 -906.250 -906.250
RHS Vertical Reaction -6.293 -6.293 -6.293

Conclusion

An exact match is shown between the solver and the two independent analysis packages.

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