Use of Time- and Frequency-Domain Approaches for Damage Detection in Civil Engineering Structures

Table 4

Description of damages.

Number	Reinforced concrete (RC) slab	Prestressed concrete (PrC) slab
#0	No damage	No damage
#0*	Appearance of a decisive crack pattern, large creep	No crack observed
#1*	No further cracks, current cracks grow and also creep	No crack observed, no considerable deformation
#2*	As above	Appearance of a hairline crack, minimal deformation
#3*	As above	As above
#4*	Collapse	Collapse