Fatigue life analysis for stay cables and the consolidation of the tower girder and pier of Changshan bridge under the vehicle load

LIU Yang; YANG Gang*; MA Ning; YANG Ke

doi:10.16411/j.cnki.issn1006-7736.2015.02.021

2015 , Vol. 41 >Issue 2: 116 - 122

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2015.02.021

Fatigue life analysis for stay cables and the consolidation of the tower girder and pier of Changshan bridge under the vehicle load

LIU Yang ,
YANG Gang^* ,
MA Ning ,
YANG Ke

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（Highway and Bridge Institute，Dalian Maritime University，Dalian 116026,China)

Received date: 2014-08-29

Revised date: 2014-11-10

Online published: 2015-06-07

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Abstract

The fatigue analysis and life evaluation of Changshan cable stayed bridge under vehicle loads were completed according to the S-N curve and linear cumulative damage rule. The influence line of displacement of fixed pier-pylon-beam was drawn by using ANSYS to find out the most disadvantageous load position, and the fatigue life of fixed pier-pylon-beam was calculated by combining the result with the fatigue analysis software FE-SAFE. Results show that fixed pier-pylon-beam of Changshan bridge is prone to fatigue failure, the fatigue life of internal rope zone of the bridge is lower than the edge cable, which provides a reference for future maintenance of Changsha bridge.

Key words： stay cables; fatigue analysis; life assessment; S-N curve; fatigue damage accumulation

Cite this article

LIU Yang , YANG Gang^* , MA Ning , YANG Ke . Fatigue life analysis for stay cables and the consolidation of the tower girder and pier of Changshan bridge under the vehicle load[J]. Journal of Dalian Maritime University, 2015 , 41(2) : 116 -122 . DOI: 10.16411/j.cnki.issn1006-7736.2015.02.021

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