A Passive Aerodynamics Control Apparatus for Bridge Flutter

摘要

In the present invention, it is attached to the inside of the bridge having a predetermined mass as aerodynamic manual control device which can suppress flutter (flutter) caused the bridge effectively, as a whole unit, by a spring of a predetermined stiffness, bridge deck the manual control device is configured to move with a constant phase difference with respect to the displacement is provided.; Specifically in the present invention, it is mounted within the superstructure of the bridge mounting a control device for controlling the flutter phenomenon of the bridge caused by the wind, perpendicularly to the in the horizontal plate, and both ends of the horizontal plate to bridge the cross direction flutter control panel can be configured to direct; Mass of the predetermined weight attached to the horizontal plate of the control panel; Support for supporting the control panel is rotatable to support the horizontal plate by a hinge; And the control panel, the bridge can be said to be actuated with a constant phase difference with respect to the vibration of the upper structure has a predetermined stiffness, characterized in that consisting of a spring member mounted between the plate and the bridge superstructure inside, manual control of the bridge flutter device It is provided.