A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges

Table 5

Solution time, loops, and RPE of FD method for model 1.

Damage scenario	Speed parameter
	0.1			0.3			0.5			0.7			0.9
	ST (s)	NL	RPE	ST (s)	NL	RPE	ST (s)	NL	RPE	ST (s)	NL	RPE	ST (s)	NL	RPE
M1-1	163.8	217	0.027	148.2	197	0.071	225.5	300^*	0.101	257.6	300^*	0.418	226.7	300^*	0.923
M1-2	249.8	280	0.028	167.4	196	0.048	227.3	300^*	0.189	227.1	300^*	1.322	226.9	300^*	0.627
M1-3	158.7	208	0.199	134.7	154	0.022	216.6	284	0.081	187.0	244	0.134	229.2	300^*	0.570
M1-4	97.8	114	0.127	94.1	125	0.057	225.7	300^*	0.072	226.8	300^*	0.391	226.4	300^*	0.627
M1-5	257.7	300^*	0.030	123.0	160	0.031	323.9	300^*	0.086	228.0	300^*	0.367	230.2	300^*	0.399
M1-6	107.6	140	0.019	94.3	125	0.029	225.7	300^*	0.064	282.1	300^*	0.536	228.5	300^*	0.732

^*Max number of iterations reached and not converged.