Feasibility Study of Earthquake-Induced Damage Assessment for Structures by Utilizing Images from Surveillance Cameras

Table 1

The range of damage index for different damage states for reinforced concrete structure [50].

Damage state	Description of the damage state	Damage index
Essentially no damage	The load-bearing components are intact, and some non-load-bearing components are slightly damaged	0.00∼0.10
Slight damage	Individual load-bearing components have slight residual deformation, and individual non-load-bearing components are obviously damaged	0.10∼0.20
Moderate damage	Most of the load-bearing components have slight residual deformation, and some of them are obvious	0.20∼0.50
Heavy damage	Most of the load-bearing components are seriously damaged or partially collapsed	0.50∼0.75
Collapse	Most of the load-bearing components are collapsed	0.75∼1.00