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Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
Measures against Wind - Induced Vibration of the Towers of the Akashi Kaikyo Bridge
Masaaki TATSUMIKensaku RATATaku EGUSAYasunari SAOKANobuyuki SASAKI
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1994 Volume 1 Issue 3 Pages 103-114


The Akashi Kaikyo Bridge, whose main towers have already been completed, is now under construction. These towers are about 300 meters above sealevel, so that they are very flexible and their natural frequency i s lower than that of other towers of Honshu-Shikoku bridges. Consequently there arose an extremely important problem regarding how to control the vibration due to the wind. In the process of designing, a great variety of experimental and analytical studies were carried out. Based on their results, several types of damping device, such as TND, AND, and so on were installed on the towers to reduce the vibration. In this report, the outline of the vibration control design adapted for the towers will first be described, followed by the results of the field test and observation of the wind response performed on the towers under erection.

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© Japanese Society of Steel Construction
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