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Spatial Analysis of Bridges Composed of Arches and Trusses by Truss Section Finite Element Method

In this paper, the stiffness and load matrix of Jiujiang Changjiang River Bridge are established by truss section finite element method. The basic assumptions and calculating process is proposed, and the functions of bridge frames are also investigated. Finally, the lateral displacement is calculated under the action of wind load (or both wind and train load).