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Advances in Bridge Engineering

Table 6 Summary of load, moment and rotation capacities of fatigued/non-fatigued bridges

From: Fatigue performance of ECC link slab incorporated full RC girder joint-free bridges

Designation

PLSy (kN)

Pall (kN)

Ratio (PLSy/ Pall)

θult

(rr, total) (rad)

Ratio (θult /θall)

Mult (kNm)

Mr-g (kNm) Eq. 1

Ratio (Mult/ Mr-g)

B0N

63.05

11.05

>5.71

-0.01494 (n/a, n/a)

3.98

15.76

15.85

1.02

B4H

24.09

11.22

2.15

-0.00896 (-0.00697, -0.01593)

2.39

14.52

15.85

0.94

  1. B0N Non-fatigued, B4H 40±10% fatigue stress level for 1,000,000 cycles, θult Girder end rotation at ultimate load, θall Maximum allowable girder end rotation of 0.00375 rad, Mult Girder moment at ultimate load, Mr-g Girder design moment as calculated by Equations 1 and 2, rr: residual rotation at unloading to zero load, total: Total rotation at ultimate load during post-fatigue loading, PLSy Load when link slab rebar yielded, and Pall Load at θall, n/a Not apssplicable
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