Steady-State Drag, Lift and Rolling-Moment Coefficients for Inundated Inland Bridges

摘要

Model studies were performed on three different two-lane bridges to determine drag, lift and rolling-moment coefficients for subcritical approach velocities. Inundation depth was varied in nine increments and velocity was varied in five increments. Final results are presented in dimensionless form with force and moment coefficients plotted against dimensionless inundation depth and dimensionless velocity. Drag coefficients were in the range reported by other investigators for the most part while lift and moment coefficients have not been previously published. A numerical example is included.