Structural Pounding Detection by Using Wavelet Scalogram

Figure 4

The El Centro earthquake excitation and responses of the SDOF structure: (a) ground acceleration, PGA = 0.1 g, (b) displacement response; (c) acceleration response; (d) pounding force; (e) single-sided amplitude spectrum of the acceleration; (f) wavelet scalogram of acceleration.

(a)

(b)

(c)

(d)

(e)

(f)