Abstract
The Akashi Kaikyo Bridge, which will cross the Akashi Kaikyo Straits with a shore-to-shore distance of about 4 km, is a very long-span truss-stiffened suspension bridge for six road lanes with a main span of 1,990 m and two side spans of 960 m. Its extremely flexible features, caused by the span length never experienced, increase importance of careful detailed considerations on static as well as dynamic effects in the aerodynamics of the superstructure. The paper describes some design considerations of wind effects and the outlines of full aeroelastic bridge model wind tunnel tests, together with primary test results analyzed so far, which have been conducted in order to carry out final verification of the wind resistance safety of this bridge at an especially constructed boundary layer wind tunnel of 41 m width.
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