Study on improvement of aerodynamic stability of truss stiffening girder with closed open-grating

Abstract

Minami-bisan Seto Bridge is a truss-stiffened suspension bridge. Its road deck has open grating in order to satisfy the aerodynamic stability. Recently, due to maintenance work, closure of the open grating is needed. In this study, aerodynamic stability of the girder with open grating closed is studied.