1116x
004147
2021-04-08

Deformations of Craneway

I am trying to manually check the deformations from the CRANEWAY add-on module. However, I obtain large deviations. How to explain the differences?


Answer:
The internal forces and deformations are determined according to the second-order analysis for torsional buckling, taking into account 7 degrees of freedom. For a linear calculation of deformations, a vertical or horizontal load only results in one vertical or horizontal deformation. Since the internal forces refer to the deformed structure and there is a nonlinear analysis, this is not valid for the second-order torsional buckling analysis.

In RFEM 5 and RSTAB 8, you can check the deformations in the shear center by using the RF‑/FE‑LTB add-on module (see Image 02). The deformations that additionally result from the displacements or rotations can only be checked with a surface model in RFEM 5.

Author

Mr. Rehm is responsible for developing products for timber structures, and he provides technical support for customers.

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