Fatigue Reliability Evaluation of Aged Railway Steel Bridges Based on Probabilistic Fracture Mechanics

2021 ◽  
Author(s):  
T. J. Rajeeth ◽  
G. Ravi
Keyword(s):  
Fracture Mechanics ◽  
Reliability Evaluation ◽  
Steel Bridges ◽  
Fatigue Reliability ◽  
Probabilistic Fracture Mechanics

Fatigue Reliability Evaluation of Old Steel Bridges Based on Probabilistic Fracture Mechanics

2006 ◽  
Vol 324-325 ◽  
pp. 435-438 ◽  
Author(s):  
Chun Sheng Wang ◽  
Jian Guo Nie ◽  
Ai Rong Chen ◽  
Wei Zhen Chen ◽  
Yue Xu
Keyword(s):  
Fatigue Life ◽  
Fracture Mechanics ◽  
Steel Bridges ◽  
Bridge Management ◽  
Fatigue Reliability ◽  
Original Design ◽  
Probabilistic Fracture Mechanics ◽  
Evaluation Models ◽  
Remaining Fatigue Life

There are many old steel bridges on Chinese transportation lines, which keep their normal traffic service function. The old bridges are often required to carry an increasing volume of traffic and heavier vehicles than the original design, so bridge management departments pay more attention to the actual remaining fatigue life of such structures. Based on probabilistic fracture mechanics theory, the member and the system fatigue failure evaluation models for old steel bridges are all proposed, and the fatigue reliability analysis program is developed using Monte-Carlo. As a case study, the evaluation models are used to predicate the fatigue reliability of Zhejiang Street Bridge. According to evaluation results, the probabilistic remaining fatigue life, safe inspection intervals and maintenance strategy are determined.

Fatigue‐Reliability Evaluation of Steel Bridges

1994 ◽  
Vol 120 (5) ◽  
pp. 1608-1623 ◽  
Author(s):  
Zhengwei Zhao ◽  
Achintya Haldar ◽  
Florence L. Breen
Keyword(s):  
Reliability Evaluation ◽  
Steel Bridges ◽  
Fatigue Reliability

The Fatigue Reliability Evaluation & Improvement of the Single-Arm Subway Current Collector

2012 ◽  
Vol 215-216 ◽  
pp. 826-831 ◽  
Author(s):  
Yu Chen ◽  
Zhi Ming Liu ◽  
Qiang Li
Keyword(s):  
Fatigue Life ◽  
Calculation Result ◽  
Dynamic Stress ◽  
Current Collector ◽  
Reliability Evaluation ◽  
Fatigue Reliability ◽  
Railway Vehicles ◽  
Load Spectra ◽  
Reliability Method

This study developed a fatigue reliability method for evaluating and improving the key parts on railway vehicles, which was applied to real structures. The study involved a type of single-arm current collector, while its contact shoe often collapsed in operation and needs improvements. The dynamic stress data from the actual line was tested and converted to load spectra based on damage consistency rule, and then the fatigue life of the contact shoe structure was achieved. The calculation result comes to correspond to its operation life. Based on the method, an improving plan for the structure was developed under optimizing algorithms.

Reliability assessment of structures based upon probabilistic fracture mechanics

1993 ◽  
Vol 8 (1) ◽  
pp. 43-56 ◽  
Author(s):  
Hiroshi Ishikawa ◽  
Akira Tsurui ◽  
Hiroaki Tanaka ◽  
Hidetoshi Ishikawa
Keyword(s):  
Fracture Mechanics ◽  
Reliability Assessment ◽  
Probabilistic Fracture Mechanics
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