GGU-SLAB: Notes applicable to both methods

Once the analysis is complete the slab can be reinforced to EC 2/DIN 1045 specifications (menu item "System/Reinforce slab"). The support forces calculated here are adopted for the shear design at support points. They are the result of the first derivation of the moments.

Note:
Because the derivation causes a roughening of the function, shear force calculation represents a fundamental problem when using the finite-element method. Remember that all finite-element methods are approximation methods. The quality of the approximation increases with increasing mesh density. In the current version, systems with a maximum of 45,000 triangle elements and nodes can be processed.

This short description shows that the analysis of a slab only requires selection of a very few menu items. All other menu items deal principally with saving your data, the layout and, if required, further evaluation of the model. These are described in the following chapters.