Aerodynamic stability of narrow decked suspension bridge (Aki-nada Ohashi Bridge)

摘要

Aki-nada Ohashi Bridge (tentative name) is now under construction with 750 m in center span length, 1175 m in total bridge length. The girder of the bridge is 19 m in width with two-lanes and pedestrian space, and the configuration is flat hexagonal box shaped. This paper describes the aerodynamic stability of both the completed stage and erection stage of the girder. Its improvement is also described.