Research on Fatigue Performance of the Rib Beam Bridge Carriageway Slab Based on Cumulative Damage Theory

Table 1

Plastic constitutive model of concrete under compressive damage under 1.5 million fatigue loads.

Measured stress (MPa)	Inelastic strain	Damage factor	Inelastic strain
12.6250	0.000000	0.000000	0.000000
18.0358	0.000601	0.000010	0.000601
13.8205	0.002221	0.000530	0.002221
9.9474	0.003824	0.000674	0.003824
7.6077	0.005354	0.000754	0.005354
6.1199	0.006843	0.000802	0.006843
5.1065	0.008309	0.000835	0.008309
3.8277	0.011199	0.000877	0.011199
3.0593	0.014058	0.000902	0.014058