An Experimental Study of the Feasibility of Identifying the Impact Damages of Reinforced Concrete Piers Using a Modal Frequency Method

Figure 16

Comparative fitting curves for the modal frequency damage factors and ultrasonic velocity damage factors. (a) Comparative fitting curve of Z16-1, (b) comparative fitting curve of Z20-1, (c) comparative fitting curve of Z16-2, (d) comparative fitting curve of Z16-3, and (e) comparative fitting curve of Z20-2.

(a)

(b)

(c)

(d)

(e)