Fiber Bragg Grating Smart Material and Structural Health Monitoring System Based on Digital Twin Drive

Table 2

Bridge column loads and alarm indicators.

Part of the bridge column serial number	Carrying capacity	Current stigma force (kN)	Residual stigma force (kN)
1	2059.07	1028.78	1030.88
2	2152.83	1171.35	981.67
3	2101.95	1435.43	666.45
4	2065.70	1046.76	1019.89