Geometric Nonlinear Analysis of Self-Anchored Cable-Stayed Suspension Bridges

Table 1

Nonlinear effect of live load.

		Nonlinearity	Second-order	Relatively deviation%	Linear	Relatively deviation%
Moment at midspan of girder/(10^3 KN·m)	Max	101.24	101.19	−0.05	101.7	0.45
	Min	−15.00	−14.96	−0.27	−15.04	0.27
Moment at root of pylon/(10^3 KN·m)	Max	285.61	283.20	−0.84	162.80	−47.79
	Min	−184.12	−185.48	0.74	−96.65	−47.51
Displacement at midspan of girder/(mm)	Max	13.3	13.4	0.75	21.2	59.40
	Min	−1180	−1186	0.51	−1189	0.76
Displacement at end of girder/(mm)	Max	23.4	22.0	−5.98	21.5	−8.12
	Min	−0.84	−0.86	2.38	−0.36	−57.14
Displacement at top of pylon/(mm)	Max	118.0	115.0	−2.54	120.0	1.69
	Min	−6.6	−6.6	0.00	−9.1	37.88