Reliability Evaluation of Bridges Based on Nonprobabilistic Response Surface Limit Method

Table 1

Comparison of calculation results.

	Iterative steps	Nonprobabilistic reliability index	Relative error
Analytical method	—	1.7191	—
Traditional nonprobabilistic response surface method	5	1.7213	1.27 × 10^−3
Presented nonprobabilistic response surface limit method	2	1.7191	0

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