From the 3D static model, the steel sections and node geometries to be verified were transferred directly into IDEA StatiCa, which greatly facilitated the inputting of the data.
Only the internal forces were entered manually in order to minimize the computational effort.
Connection static difficulties consisted of the connection of up to seven members in a node with partly thin-walled hollow sections and constantly changing connection angles.
This was especially true for the 115 m long, 110 ton heavy truss above the south stand, which had to be pre-assembled on site as a bolted structure due to its huge dimensions. It was then lifted in one piece onto its two concrete bases to avoid the need for costly auxiliary structures.
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