Research in Destruction of Concrete Bridge Expanded Joint Influenced by Temperature Difference

Abstract:

Destruction of bridge expanded joint is a serious problem for concrete bridge. Based on 5 years measured data, the temperature in the different positions of the concrete box girder was systemically analyzed to illuminate the cause of the bridge expanded joint damage. A method for predicting the extremum value of the temperature difference of concrete girder was proposed by use of the extrema analysis and curve fitting based on the temperature in the different positions of the concrete box girder. The relationship is quite useful in estimating the destruction of bridge expanded joint by effective temperature difference in concrete box-girder.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 803-806
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.803
• Online since: March 2015
• Authors: Xiao Lei*, Yue Yao, Shi Cao, Zhi Gang Guo
• Keywords: Bridge Engineering, Concrete Continuous Box Girder, Temperature Difference, Temperature Flied

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DOI: 10.2749/101686605777963044