Finite Element Simulation of Vibration Damage of Curved Tower Cable-Stayed Bridge with Spatial Torsion Cable Plane
In order to improve the safety and stability of cable-stayed bridges,this paper proposed a finite element simulation method for vibration damage of space plane reverse cable-stayed bridge.Firstly,we used the finite element model to research the dynamic characteristics of the bridge,thus obtaining the internal force and external force distri-bution of each mass point in the space plane reverse cable-stayed bridge.Then,we used the central difference method to calculate the position of mass point,and thus to determine the maximum stress of the cable-stayed bridge.Next,we expanded the finite element model and determined the four types of failure modes(fiber tensile failure,fiber compres-sive failure,matrix tensile failure,and matrix compressive failure)separately.Finally,we completed the finite element analysis.The simulation results show that the proposed method can better fit the frequency vibration of the bridge,with fewer steps.The efficiency of analysis is high as well.
Finite element modelSpace torsion cable planeCable-stayed bridgeBridge destroy modeTensile failure of matrix
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