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Long-span bridges are slender, light and flexible large-scale structures. Bridges in the cantilever state are found more susceptible to wind load compared to the bridges in the completed state. The wind-induced dynamic response numerical simulation of fluid-structure interaction of the long span bridge in cantilever state used ADINA is carried out in this paper. The wind-induced dynamic coefficients and the wind pressure distribution coefficients which can be used in the design are also calculated. These analysis provides the evidences for the incremental launching method.
Date of Conference: 2-3 May 2009