Aerodynamic investigations for the tender design concepts of the Oresund cable-stayed bridge

For the Oresund link project two alternative tender designs were proposed, one single-level box girder solution and a double-level truss girder soluti on. Aerodynamic investigations, comprising wind tunnel section model tests as well as full-scale predictions, were carried out for the cable-stayed pa rt of the two design alternatives. The section model tests covered static a nd dynamic tests for various configurations of bridge deck equipment, aimin g at the detection of possible instabilities or vortex shedding effects and recording of the buffeting response. Cross-sectional admittance functions and aerodynamic derivatives have been estimated, and employed for full-scal e predictions of dynamic displacements at a chosen value of the characteris tic mean wind speed. (C) 1999 Elsevier Science Ltd. All rights reserved.