Research Article

Research for Pedestrian Steel Bridge Design of Neural Network in Structural Model Updating

Table 5

Test results of BP neural network.

OrderTheoretical valuePredicted value
Density ρ (N/m3)Elastic modulus E (Pa)Density ρ (N/m3)Elastic modulus E (Pa)

17.800 × 1041.940 × 10117.807 × 1041.943 × 1011
27.860 × 1042.000 × 10117.867 × 1042.002 × 1011
37.940 × 1042.060 × 10117.938 × 1042.059 × 1011
47.880 × 1041.960 × 10117.879 × 1041.962 × 1011
57.900 × 1042.100 × 10117.895 × 1042.099 × 1011
67.840 × 1041.980 × 10117.848 × 1041.982 × 1011
77.960 × 1041.960 × 10117.974 × 1041.963 × 1011
87.860 × 1042.020 × 10117.867 × 1042.023 × 1011
97.940 × 1042.100 × 10117.939 × 1042.100 × 1011
107.920 × 1041.980 × 10117.919 × 1041.983 × 1011