Reliability Evaluation of Bridges Based on Nonprobabilistic Response Surface Limit Method

Table 2

Comparison of calculation results.

	Iterative steps	Nonprobabilistic reliability index	Relative error
Analytical method	—	2.0397	—
Gradient Projection Method	—	2.0397	0
Traditional nonprobabilistic response surface method	10	2.0396	4.9 × 10^−5
Presented nonprobabilistic response surface limit method	4	2.0397	0

Note. Relative error is obtained by comparing the nonprobabilistic reliability index calculated using other methods with that calculated using the analytical method.