Comparative Analysis on Aerostatic Coefficients of Bridge Deck Based on Wind Tunnel Test
A comprehensive study of force measurement test in wind tunnel is conducted for the streamlined deck model of Dalian Cross-sea Bridge scheme. The factors, including stacking load in erection, vehicles arrangement, central slot and so on, are analyzed in terms of the influence of the three-component coefficient in the way of microscopic mechanism. The stall angles under different working conditions are also investigated. The results show that stacking loads and vehicle arrangement barely have any impact on the three-component coefficient, which can be neglected approximately; lift and pitching coefficients decrease for the slotted deck, and the slot width has little influence on the aerostatic coefficients; bridge railing, stacking loads and vehicles change the flow separation and re-attachment around the deck, increasing the turbulence intensity, leading to the fluctuation of stall angles.
F. Y. Xu et al., "Comparative Analysis on Aerostatic Coefficients of Bridge Deck Based on Wind Tunnel Test", Applied Mechanics and Materials, Vols. 29-32, pp. 377-382, 2010