Research Article

Damage Identification of a Steel Frame Based on Integration of Time Series and Neural Network under Varying Temperatures

Table 7

The identification results of damage severities when two braces are damaged.

Damaged bracesaj (%)T (°C)Target outputActual outputRelative error (%)

1, 450200.50.50.478510.475034.304.99
300.50.50.472360.467955.536.41
70200.70.70.750880.75377−7.27−7.68
300.70.70.763260.74738−9.04−6.77
1, 550200.50.50.439220.4383512.1612.33
300.50.50.450760.453469.859.31
70200.70.70.766290.76308−9.47−9.01
300.70.70.742150.74138−6.02−5.91
4, 550200.50.50.482090.484423.583.12
300.50.50.472710.47855.464.30
70200.70.70.771590.7673−10.23−9.61
300.70.70.769660.76332−9.95−9.05