Research on the Bridge Tower Crack Propagation under Thermal Fatigue Loading

Jian Shen; Xiao Yun Liu

doi:10.4028/www.scientific.net/AMR.1004-1005.1537

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1004-1005Research on the Bridge Tower Crack Propagation...

Research on the Bridge Tower Crack Propagation under Thermal Fatigue Loading

Abstract:

The bridge tower crack extension probability is very large because of the stress concentration at the crack tip, combined with the fatigue stress. Based on the long-term observations of temperature fatigue load spectrums of a bridge tower and the experiment of concrete fatigue performance parameters, the problem of crack propagation is analyzed by infinite life safety reliability model and safe and reliable crack extension randomness model. It is concluded that the concrete structure crack extension probability is close to 98.6% and reasonable repair cycle should be about 3 years.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

Pages:

1537-1540

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.1537

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Online since:

August 2014

Authors:

Jian Shen*, Xiao Yun Liu

Keywords:

Crack Length Probability Density Function, Randomness of Crack Propagation, Safe and Reliable Model, Thermal Fatigue Load

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References

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