Further aerodynamic studies of Lions’ Gate Bridge – 3 lane renovation

This paper presents the results of aerodynamic studies of the Lions’ Gate Bridge – 3 lane renovation. The studies are divided into two parts: In the first part results of wind tunnel tests on a section model are compared to the results from two-dimensional numerical simulations based on the discrete vortex method. In the second part, changes in aerodynamic behaviour due to design revisions and changed mass and stiffness properties are studied by means of numerical simulations only. This was made possible because the numerical simulations had been calibrated with the results from wind tunnel testing in the first part of the studies and compared favourably. The numerical simulations proved both time and cost efficient. The studies undertaken are exclusively for the renovation of the suspension bridge.