Nemetschek Engineering User Contest 2009 • Category 3: CAE Civil Works 133 3 Cable stayed bridge, Dilsen-Stokkem as classic bars, but with the E-modules of the tension bar material in relation to the inclination of the tension bars (this means they were considered as cables with a fictive E-modulus). Because the linear calculations resulted in compression in the tension bars a non linear calculation was needed. Fourthly, there was a second order calculation needed for the check of the curved pylon based on a stability calculation. Fifthly, engineering the different construction stages had to be examined for the erection and a severe erection manual for the mounting and the pretension of the cables was needed; this to achieve the theoretical form of the bridge deck. And finally, the dynamic behaviour of the bridge had to be checked. Description of how our experience with ESA-Prima Win proved its completeness • Dimensioning a 3D structure consisting of different materials (steel, concrete). • The possibility of using and combining the results of ESA-Prima Win in a flexible way. • The possibility of calculating graphical sections. • The possibility of using tension only elements for the modelling of the cables. • Stability calculation and second order calculations. • Checking the dynamic behaviour of the structure by calculating the Eigen values of the structure. This project proves the great diversity of ESA-Prima Win in checking the structure and the use of materials. Used modules • Base • 3D frame • Dynamics • Steel code check (EC) • Stability • Physical non linear conditions
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