Abstract
This method is a structural method to enhance the aerodynamic stability by adding temporarily the mass into the box girder of a suspension bridge against a storm. First of all, we researched the most effective longitudinal position of such the mass from the aerodynamic stability. And we roughly designed suspension bridges by this method. As a result, this method shows the same effect as other structural methods and reduces much structural material. It was recognized that the bridge's changed stiffness due to static wind loading makes this method more favorable. For this study, we employed the extended Bleich theory and a numerical integration method.
