Flutter Characteristics of Thin Plate Sections for Aerodynamic Bridges

Abstract

A fundamental understanding of the flutter stabilization of streamlined box girders is of critical importance for ensuring the structural safety of superlong span bridges. This study systematically investigated the flutter characteristics of thin plate sections by performing theoretical analysis in conjunction with wind tunnel tests with the aim of evaluating the flutter mechanism of superlong-span bridges with streamlined box girders. From the results of a two-dimensional, two-degree-of-freedom (2D-2DOF) flutter analysis, it can be seen that with increases in ftorsion/fheaving, the aerodynamic damping part D of the torsion motion becomes more important and the level of participation level o..