Unsupervised Structural Damage Detection Technique Based on a Deep Convolutional Autoencoder

Figure 6

The six damage patterns considered for the IASC-ASCE benchmark structure [37]: (a) no stiffness in 1st floor braces, (b) no stiffness in 1st floor braces and no stiffness in 3rd floor braces, (c) no stiffness in one 1st floor brace, (d) no stiffness in one 1st floor brace and no stiffness in one 3rd floor brace, (e) no stiffness in one 1st floor brace and no stiffness in one 3rd floor brace beam-column connection weakened, and (f) 2/3 stiffness in one 1st floor brace.

(a)

(b)

(c)

(d)

(e)

(f)