Abstract
In the current bridge design, aerodynamic stability of bridge has been investigated for almost bridges after a structural section shape was determined. In these cases, aerodynamic stability of bridge has been secured by installing additional members such as fairing, flap and horizontal plate as suppression device of aerodynamic vibration. In the present study, our attentions are focused on a horizontal plate effect. The horizontal plate has some advantages for suppression of aerodynamic vibration. However, detail mechanism is not yet elucidated on suppressing aerodynamic vibration. The objective of the present study is to investigate the suppression effect of the horizontal plate by changing both the length and the installation position of the horizontal plate.
