EUROCODE 2 WORKED EXAMPLES - Federbeton

EC2 – worked examples 6-42
6.15.2 Structural model
To evaluate the internal actions on the structure a linear FEM analysis has been
performed adopting shell elements to represent the reinforced slab; this kind of element
takes account of all the slab and plate components as well as the out-of-plane shear forces.
The thickness of shell elements has been assumed constant for the inner zone of the slab
and stepped to fashion the tapered extremity. In Fig 6.31 and 6.32 the FEM model is
sketched and the different thick of the element is reported too.
Table of Content
Fig. 6.31 Transverse view of FEM model
Fig. 6.32 Plan of FEM model and considered elements
The adopted shell elements are oriented with the following guidelines:
− local axis 2 is oriented as global axis Y of the deck;
− local axis 3 is oriented in the opposite direction of global axis X of the deck;
− local axis 1 is oriented as global axis Z of the deck.
Positive forces for FEM program output are reported in Fig. 6.33: