Reliability Assessment and Residual Life Estimation of Concrete Girder Bridges Strengthened by Carbon Fiber during the Service Stage

Table 4

The beam time-dependent reliability index.

Time/year	Unstrengthening β	Time/year	Strengthening β
10	4.23	50	4.61
20	4.06	60	4.57
30	3.88	70	4.51
40	3.72	80	4.38
50	3.58	90	4.29
		100	4.20