Based on the swivel construction of bidirectional asymmetrical swivel continuous beam bridge,the influence of wind load and superstructure deflection on the anti-overturning stability of swivel bridge is studied by the refined finite element analysis method,and the anti-overturning safety factor is calculated.The results show that the longitudinal and transverse overturning moments and eccentricity of the bidirectional asymmetrical swivel continuous beam bridge are much larger than those of the symmetrical swivel bridge.It is necessary to adjust the segment length or set the eccen-tricity to offset the overturning moment caused by the dead weight.The structure is safe under the transverse static wind load.When the deflection of the superstructure exceeds 1°,the struts and pins have failed.The increase of deflection angle leads to the decrease of anti-overturning safety factor.
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