• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 26 Issue 3
Jun.  2013
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Article Contents
PU Qianhui, GAO Liqiang, LIU Zhenbiao, SHI Zhou. Fatigue Assessment of Orthotropic Steel Bridge Deck Based on Hot Spot Stress Method[J]. Journal of Southwest Jiaotong University, 2013, 26(3): 395-401. doi: 10.3969/j.issn.0258-2724.2013.03.001
Citation: PU Qianhui, GAO Liqiang, LIU Zhenbiao, SHI Zhou. Fatigue Assessment of Orthotropic Steel Bridge Deck Based on Hot Spot Stress Method[J]. Journal of Southwest Jiaotong University, 2013, 26(3): 395-401. doi: 10.3969/j.issn.0258-2724.2013.03.001

Fatigue Assessment of Orthotropic Steel Bridge Deck Based on Hot Spot Stress Method

doi: 10.3969/j.issn.0258-2724.2013.03.001
  • Received Date: 15 May 2012
  • Publish Date: 25 Jun 2013
  • The hot spot stress method was applied to fatigue assessment to solve the problem of fatigue cracking in orthotropic steel bridge deck.In this method, the hot spot stresses at check positions were calculated using the linear extrapolation method of International Institute of Welding and the ANSYS sub-model method.Based on hot spot stress method, the process of fatigue assessment for orthotropic steel bridge deck was provided, and the related problems were investigated in a case study on Yongjiang railway cable-stayed bridge.The results show that compared with the nominal stress method, the hot spot stress method can better reflect the cracking essence of orthotropic steel bridge decks. The fatigue assessment made for the rib located at the joint between diaphragms and the rib of the orthotropic steel bridge deck of the Yongjiang bridge reveals that the fatigue life span of the structure is 73 years.

     

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