Research on Bridge Cable Force Analysis and Cable Force State Prediction Based on Grey Correlation Degree
In order to solve the problem of difficult evaluation of the overall operation state of cable system bridge,the variation degree of grey correlation degree of cable force was proposed to characterize the overall operation state of cable force of the whole bridge.Aiming at the cable force state of the bridge changes with time,the G(1,1)prediction model of the grey correlation degree value of the bridge cable force was established to realize the prediction of the future cable force state of the bridge.Based on the research background of eight cable system bridges,the evaluation of the current cable force opera-tion state was realized by comparing and analyzing the grey correlation value of the cable force of the bridge over the years.The results show that,the trend of the grey correlation degree value of the cable force of the bridge can effectively characterize the change of the overall operation state of the cable force.The prediction results of grey correlation degree of bridge cable force based on G(1,1)prediction model are highly consistent with the real values,which verifies the accuracy of the prediction model and reali-zes the accurate prediction of the future operation state of bridge cable force.
frequency methodcable force of bridgegrey correlation degreeG(1,1)prediction mod-elstate prediction
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