Evaluation of Ultimate Serviceable State of the Cross-Sea Bridge Pier under Freeze-Thaw and Erosion Coupling Effect

Abstract:

In order to put forward a durability assessment method of concrete structure based on the engineering calculation and analysis, combining with the characteristics of northern freezing coastal areas and the non-navigable spans bridge construction，the paper built the Ottosen strength criterion on concrete under freeze-thaw and erosion coupling effect. By the application of strength criterion, calculation and analysis, it has been evaluated the crack resistance at a few key points of the concrete pile cap on the bottom. The result illustrates that there will appear concrete cracks at the middle of the cushion cap bottom after a 130-year serviceable period when the bridge is attacked by the once-in-a-century wave load or ice load, that is, the safety serviceable period of the bridge pier is 130 years.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 1484-1491
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.1484
• Online since: December 2012
• Authors: Qian Qiao Zhao, Lu Jin
• Keywords: Cross-Sea Bridge, Freeze-Thaw and Erosion Coupling, Ottosen Strength Criterion, Ultimate State Evaluation

References

[1] GB 50476-2008, Code for durability design of concrete structures[S].

[2] G/T B07-01-2006, Specification for deterioration prevention of highway concrete structures[S].

[3] China Civil Engineering Society. CCES01-2004 Concrete durability design and construction guidelines[S]. revised edition.Beijing: China Architecture and Building Press, 2005.

[4] MEHTA PK. Concrete durability-fifty year's progress[A]//Proceeding 2nd International Conference on Concrete Durability[C],American Concrete Institution.ACI SPI126-1. (1991)

DOI: 10.14359/1998

[5] Harvey H. Haynes. Permeability of Concrete in Sea Water [J]. Special Publication.(2004)

[6] MuR,Miao CW,Breugel KV,etal.Properties of Air-entrained Concrete Subjected to Freeze-thaw Cyclesand Salt Attack simultaneously [C]//Yuan YS,Shah SP,LHL. Advanced in Concrete and Structures ICACS2003:Paris, France: RILEM Publications SARL, (2003)

[7] Durability evaluation research on the north sea bridge substructure under the freeze-thaw and erosion coupling effect [R]. Qingdao：Shandong Hi-Speed Qingdao Expressway Co.,Ltd, 2011.