document: Advanced aerostatic stability analysis of cable-stayed bridges using finite-element method Based on the concept of limit point instability , an advanced nonlinear finite-element method that can be used to analyze the aerostatic stability of cable-stayed bridges is proposed . Both geometric nonlinearity and three components of wind loads are considered in this method . The example bridge is the second Santou Bay cable-stayed bridge with a main span length of 518 m built in China . Aerostatic stability of the example bridge is investigated using linear and proposed methods . The effect of pitch moment coefficient on the aerostatic stability of the bridge has been studied . The results show that the aerostatic instability analyses of cable-stayed bridges based on the linear method considerably overestimate the wind-resisting capacity of cable-stayed bridges . The proposed method is highly accurate and efficient . Pitch moment coefficient has a major effect on the aerostatic stability of cable-stayed bridges . Finally , the aerostatic failure mechanism of cable-stayed bridges is explained by tracing the aerostatic instability path
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