Optimization Method for Solving the Reasonable Arch Axis of Long-Span CFST Arch Bridges

Table 1

Iterative calculation of main tube eccentricity.

Number of iterations			Max-My (kN·m)
0	15.00	63.23	521.53
1	15.00	49.76	365.30
2	15.00	41.88	353.89
3	15.00	37.14	359.23
4	15.00	31.51	303.95
5	15.00	30.39	261.61
6	15.00	25.33	205.62
7	15.00	22.11	141.47
8	15.00	19.99	126.38
9	15.00	19.74	113.78
10	15.00	17.87	115.00
11	15.00	16.58	113.80
12	15.00	16.23	112.83
13	15.00	15.53	112.65
14	15.00	15.26	99.44
15	15.00	14.91	100.85