1995 : preliminary wind climate model with predicted 50 years wind speed at the top based on full scale measurement 1996 : building scale model of 3 sections of the cross and testing it in the BLW 2001 : modelisation with ice and new calculation
base shear =ɮ 20 tons base moment => 80 000 tons meter tip deflexion => 2.36 meters vibration period => 11.45 seconds