Research on Vibration Responses of Railway Steel Bridge Considering Welding Residual Stress

Jia Liu; Run Chang Zhang; Li Jiang; Zhong Shan He; Dong Mei Tan

doi:10.4028/www.scientific.net/AMM.397-400.374

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 397-400Research on Vibration Responses of Railway Steel...

Research on Vibration Responses of Railway Steel Bridge Considering Welding Residual Stress

Abstract:

Vibration responses of railway steel bridge considering welding residual stress have been researched. Based on the reasonable heat source model matching the electrical arc welding, the welding residual stress in welding joints of steel bridge has been simulated. Meanwhile, it has been superimposing with the gravity stress and the actual measured dynamical stress of railway steel bridge. Then, acting all actions to the accurate finite element model, the vibration responses of railway steel bridge considering welding residual stress can be analyzed, and the conclusion that the residual stress has a significant contribution to the vibration dynamical stress in welding joints district of railway steel bridge has been obtained.

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Periodical:

Applied Mechanics and Materials (Volumes 397-400)

Pages:

374-377

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.397-400.374

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Online since:

September 2013

Authors:

Jia Liu, Run Chang Zhang, Li Jiang, Zhong Shan He, Dong Mei Tan

Keywords:

Fatigue, Heat Source, Railway Bridge, Residual Stress, Welding Joints

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