2013 - 2014 _ LELLEK GROUP STORE - PORSCHE CENTRUM WROCLAW in Wroclaw
The 2-storey with a basement and 2 mezzanines building of mixed steel-concrete structure.

The longitudinal partly oval external walls are slanted relative to the inner one that acts as an intermediate support of the transverse column-beam roof structure in a 6m spacing.
For the best visual effects, it was designed the stiff trapezoidal roof sheeting with no purlins and no roof and wall bracing also.
The consequence of the assumed aesthetics was the unification of roof beam profiles despite different their spans in each bay.

In the bays where lack of the inner wall, 3 truss girders of low height were designed, but from certain reasons - in phase of erection - were simplified to plate girders of the increased cross-section.