A study on wind resistant design of long-span bridges based on field observation result

Abstract

In wind-resistant design of long-span bridges, their behavior against the wind is evaluated through wind tunnel testing or analytical approaches. Little evidence has been reported so far as to whether or not the wind characteristics acting on bridges are the same as assumed in the design code and they behave in the same way as assumed in it. This paper presents the results of a study on the validity of wind-resistant design for long-span bridges based on field observation results of the Ohnaruto Bridge and the Minami Bisan-Seto Bridge. The possibility that the wind load for long-span bridges could be reduced is suggested by reconsidering the spatial correlation of the wind.