Table 3 Working conditions of the experiment.

From: Research on damage identification in T-beam bridges based on strain influence lines

Working conditions number

Damaged beams

Damaged area

Condition measuring point number

working condition 0

None

none

A0, C0, E0

working condition 1

Mid-span diaphragm

Figure 23a

A1, C1, E1

working condition 2

Mid-span diaphragm and middle beam

Figure 23b

A2, C2, E2

working condition 3

Mid-span diaphragm, middle beam, and end beam

Figure 23c

A3, C3, E3