Contrastive Analysis of Fatigue Life Prediction Methods for WeldingRoots in U-Rib and Orthotropic Steel Bridge Deck
[1]YANG Mu-ye,JI Bo-hai,FU Zhong-qiu,et al.Contrastive Analysis of Fatigue Life Prediction Methods for WeldingRoots in U-Rib and Orthotropic Steel Bridge Deck[J].Journal of Zhengzhou University (Engineering Science),2015,36(02):22-27.[doi:10.3969/j.issn.1671-6833.2015.02.006]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 02
Page number:
22-27
Column:
Public date:
2015-04-30
- Title:
- Contrastive Analysis of Fatigue Life Prediction Methods for WeldingRoots in U-Rib and Orthotropic Steel Bridge Deck
- Keywords:
- orthotropic steel deck ; fatigue life prediction; transverse running locations distribution; FEM a-nalysis
- CLC:
- U441+.4
- Abstract:
- Based on the 3rd Nanjig Yangtze River Bridge and the measured data of traffic,the analysis of thestress and damage prediction influencing factors of the fatigue details on welding roots in U - Rib and orthotro-pic steel bridge deck under the and the wheel load is made.Based on the cumulative damage failure criterion,fatigue damage degree calculated by nominal stress method is more reliable and notch stress is not stable whilecompare to other methods. For the steel deck plate details in this paper,FE analysis prediction of fatigue lifeshowed that 1mm hot spot stress method is of strong theory and most accuracy results. This approach is recom-mended for predicting the fatigue life of details on welding roots in U - Rib and orthotropic steel bridge decks.
- References:
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