Table 1: Setups for ambient vibration tests at Baicheng Footbridge.

Setup NumberVertical measurement pointRadial measurement pointObjective

13, 4, 5, 6, 9, 13, 14, 15, 18Modal identification
21, 2, 7, 8, 10, 11, 16, 17Modal identification
310, 11, 12, 13, 14, 15, 16, 17, 18Modal identification
43, 4, 5, 7, 8, 12, 14, 16, 17Assessment of time synchronization
55, 12, 14, 16Assessment of time synchronization