| Title |
Aerodynamic Across-wind Response of Tapered Tall Building according to Variation of Damping Ratios under Wind Load |
| Keywords |
aeroelastic ; tapering ; taper ratio |
| Abstract |
A wind-tunnel experiment using an aeroelastic tapered tall building model is carried out to investigate the tapering effect for reducing the across-wind response. Three tapered models which have different taper ratio of 5% and one basic model of a square cross-section without taper .Included in this study is the damping ratio effect of the model for reducing the response. Natural frequency and damping ratio of each model were estimated by the free vibration test. Tapering effect appears as the reduced wind speed is increased specially where the damping ratio of model has a higher value. At a lower value of damping ratio model tapering effect does not appears even a higher tapering ratio model it is. |