Wind Tunnel Test of the Akashi Kaikyo Bridge using Full Bridge Model

The Akashi Kaikyo Bridge is a suspension bridge under construction whose center span is 1, 990m. The bridge will be the longest suspension bridge in the world. Since the bridge is much longer than the present longest bridge, the aerodynamic characteristics of the bridge was evaluated through wind tunnel test using full bridge model as well as section model. This report outlines a study concerning the wind tunnel study using full bridge model in smooth flow and turbulent flow. The characteristics of flutter and gust responses observed in the wind tunnel test were shown and discussed.