On the Influence of Corrosion on the Load-Carrying Capacity of Old Riveted Bridges
Abstract
:1. Introduction
1.1. Degradation of Bridges due to Corrosion
1.2. Influence of Corrosion on Load-Carrying Capacity
2. Study Description
2.1. Inputs for Analysis
2.2. Load-Carrying Capacity
3. Results of the Study
4. Conclusions and Discussion
- Bending resistance or combined with axial force: Equation (1)
- Combination of bending, normal force, and shear force: Equation (5)
- Shear resistance of the web: Equation (9)
- Resistance of the cross-sectional web to the biaxial stress state caused by normal stresses in the longitudinal and vertical directions in combination with the shear stresses: Equation (10)
Author Contributions
Funding
Conflicts of Interest
References
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Bridge Superstructure | Chosen Member | ||||||
---|---|---|---|---|---|---|---|
No./type | Year/age | Span | Figure | Designation | Length | Section | |
Bridge 1 | 1877 | 10.92 m | Figure 1 | Stringer 1 | 1.82 m | Figure 4a | |
plate girder | 142 years | Crossbeam 1 | 4.60 m | Figure 4b | |||
Main girder 1 | 10.92 m | Figure 4c,d | |||||
Bridge 2 | 1910 | 22.90 m | Figure 2 | Stringer 2 | 2.29 m | Figure 5a | |
plate girder | 109 years | Crossbeam 2 | 5.24 m | Figure 5b | |||
Main girder 2 | 22.90 m | Figure 5c,d | |||||
Bridge 3 | 1943 | 57.40 m | Figure 3 | Stringer 3 | 4.20 m | Figure 6a | |
truss girder | 76 years | Crossbeam 3 | 5.90 m | Figure 6b |
Element of the Bridge | Age of the Bridge | Cross-Sectional Area | Section Modulus | LCC from Bending and Axial Load: Equation (1) or (5) | LCC from Biaxial Stress State in Web: Equation (10) | LCC Derived from Pure Shear: Equation (9) | |||
---|---|---|---|---|---|---|---|---|---|
t (y) | A (mm2) | Wy (mm3) | ZLM71 | Zt/Zt0 | ZLM71 | Zt/Zt0 | ZLM71 | Zt/Zt0 | |
Stringer 1 | 0 | 12,300.0 | 1,540,127.1 | 0.639 | 1.000 | 1.585 | 1.000 | – | – |
142 | 11,733.0 | 1,477,247.9 | 0.582 | 0.911 | 1.505 | 0.950 | – | – | |
Crossbeam 1 | 0 | 17,186.0 | 3,348,120.4 | 0.668 | 1.000 | 0.958 | 1.000 | 1.661 | 1.000 |
142 | 16,768.8 | 3,223,218.9 | 0.642 | 0.961 | 0.918 | 0.958 | 1.590 | 0.957 | |
Main girder 1 | 0 | 33,224.0 | 1,3455,418.9 | 0.818 | 1.000 | 0.875 | 1.000 | 1.224 | 1.000 |
142 | 32,821.2 | 1,3280,169.9 | 0.806 | 0.985 | 0.861 | 0.984 | 1.179 | 0.963 | |
Stringer 2 | 0 | 13,056.0 | 1,799,326.9 | 0.886 | 1.000 | 1.940 | 1.000 | – | – |
109 | 12,317.4 | 1,701,602.0 | 0.812 | 0.916 | 1.814 | 0.935 | – | – | |
Crossbeam 2 | 0 | 19,000.0 | 3,997,194.4 | 0.465 | 1.000 | 0.767 | 1.000 | 1.490 | 1.000 |
109 | 18,536.0 | 3,870,092.9 | 0.448 | 0.963 | 0.739 | 0.963 | 1.427 | 0.958 | |
Main girder 2 | 0 | 57,984.0 | 4,1565,670.1 | 0.908 | 1.000 | 1.109 | 1.000 | 1.436 | 1.000 |
109 | 55,848.0 | 4,0166,758.5 | 0.868 | 0.956 | 1.049 | 0.946 | 1.295 | 0.902 | |
Stringer 3 | 0 | 20,878.0 | 3,954,636.7 | 1.204 | 1.000 | 1.236 | 1.000 | – | – |
76 | 19,567.0 | 3,572,712.3 | 1.040 | 0.864 | 1.102 | 0.892 | – | - | |
Crossbeam 3 | 0 | 31,032.0 | 1,0593,420.7 | 1.404 | 1.000 | 1.043 | 1.000 | 1.736 | 1.000 |
76 | 29,582.8 | 1,0216,187.5 | 1.344 | 0.957 | 1.016 | 0.974 | 1.622 | 0.934 |
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Gocál, J.; Odrobiňák, J. On the Influence of Corrosion on the Load-Carrying Capacity of Old Riveted Bridges. Materials 2020, 13, 717. https://doi.org/10.3390/ma13030717
Gocál J, Odrobiňák J. On the Influence of Corrosion on the Load-Carrying Capacity of Old Riveted Bridges. Materials. 2020; 13(3):717. https://doi.org/10.3390/ma13030717
Chicago/Turabian StyleGocál, Jozef, and Jaroslav Odrobiňák. 2020. "On the Influence of Corrosion on the Load-Carrying Capacity of Old Riveted Bridges" Materials 13, no. 3: 717. https://doi.org/10.3390/ma13030717