Seismic failure mode classification method for corroded rectangular RC piers based on multi-layer perceptron
The corrosion of steel bars will lead to the non-uniform degradation of flexural and shear strength of reinforced concrete(RC)pier.Under the influence of an earthquake,it will cause a change in its failure mode.To establish an accurate failure mode identification method,the failure mode prediction method of corroded rectangular RC pier based on multi-layer perceptron was proposed.Using 184 groups of corroded and non-corroded rectangular RC pier samples collected,bivariate correlation analysis was used to determine the significant factors affecting the failure mode of pier,and the identification model of the failure mode of corroded rectangular RC pier was established.The validity of the model was verified by comparing with the traditional discriminant method.The results showed that compared with the traditional discriminant method,the method simplified the discriminant process,solved the problem of the traditional method's imperfect calculation method and high complexity,and the accuracy of the method was up to 91.8%,which was 33.0%and 22.4%higher than the two traditional methods,respectively.
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