Analysis of the structure with the possibility to define unidirectional supports on nodes, lines or surfaces. This calculation type can be applied to beams or plates on subsoil.
One-sided supports - that act only if the structure undergoes pressure - can solve any contact problems.
|Nodal, linear or surface support type can be defined as acting in one direction|
|The use of local node and beam coordinate systems can create one-sided supports according to any direction|
Supports with tension can be automatically eliminated. This is mostly used for slabs on subsoil, column bases of for example scaffoldings, struts, …
The following types of supports can be eliminated if tension occurs:
- Nodal Support
- Line Support
For Nodal Supports or Line Supports it is possible to specify a translation degree of freedom as ‘Rigid pressure only’ or ‘Flexible Pressure only’. To eliminate supports in pressure (and obtain a Tension-only support), the nodal support can be rotated 180°.
Subsoils are always regarded as Pressure-only for a non-linear calculation. No specific input has to be made.
Example of the usage - Slab on subsoil