Abstract
The aerodynamic response of a suspended-cable roof over a railway station is examined using a full aeroelastic model in a boundary-layer wind tunnel. The results of the wind-tunnel tests, conducted in thin and thick boundary-layer flow conditions, are presented and compared with those obtained for a section model in smooth and turbulent flow conditions. Vortex-induced oscillation at relatively low wind speed and flutter at high wind speeds were observed in a thin boundary-layer flow. Furthermore, it is shown that the presence of structures beneath the roof results in a sdecrease in the vertical oscillations of the roof. However, a train parked in the station on the upstream track caused an aerodynamic torsional instability for wind speed exceeding 70 mph (113 km/hr).
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