Study on Evaluation Theory of Bridge Damage State and Methodology on Early Warning of Danger

Table 1

Comparison of evaluation test results among methods I, II, and III.

Bridge components	Actual damage grade	Method I	Method II	Method III
1^st damage part	★-II	★-II	★-III	★-I
2^nd damage part	★★★-I	★★★-I	★★-III	★★★-II
3^rd damage part	★★-II	★★-II	★★★-I	★★★-I
4^th damage part	★-I	★-I	★-II	★-II
5^th damage part	★-III	★-III	★★-I	★★-II