Study on Regular Inspection Frequency of Bridge Based on Seismic Vulnerability Analysis

Table 7

Usage disruption and downtime associated with different damage states.

Damage state	Usage disruption index	Downtime (days)
Slight	0^a	10^b
Moderate	0.25^a	20^b
Major	0.5^a	60^b
Complete	1^a	75^b

^aBased on [28]. ^bBased on [30].