Volume 1, Issue 3, September 2016, Page: 34-38
Durability Design of a Sea-Crossing Bridge in Zhejiang, China
Lipeng Wu, School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China; Key Laboratory of Roads and Railway Engineering Safety Control, Ministry of Education, Shijiazhuang, China
Peng Dai, School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China; Key Laboratory of Roads and Railway Engineering Safety Control, Ministry of Education, Shijiazhuang, China
Tiantian Liang, School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China; Key Laboratory of Roads and Railway Engineering Safety Control, Ministry of Education, Shijiazhuang, China
Received: Oct. 26, 2016;       Accepted: Nov. 10, 2016;       Published: Dec. 12, 2016
DOI: 10.11648/j.ajtte.20160103.12      View  3090      Downloads  114
Abstract
Durability design of a sea-crossing bridge in Zhejiang Province was carried out. Exposure condition of the marine environment was divided into four zones, i.e., atmospheric zone, splash zone, tidal zone and subsea zone. Environment condition surrounding the bridge was introduced, and then the factors affecting the deterioration of the concrete structure were analyzed. It was found that the main factor was chloride ions invasion. Then a chloride ion intrusion model was built based on Fick’s second law. Design parameters corrected by Fully Probabilistic Method were used. Besides, the effect of stress on chloride diffusion coefficient was also considered. Using a variety of supplementary cementitious materials, the concrete mix was examined by Rapid Chloride Migration Tests to meet durability requirements. Finally, through capillary crystalline technology, the resistance to chloride ion penetration was further enhanced.
Keywords
Sea-Crossing Bridge, Durability Design, Chloride Diffusion Coefficient, Fick’s Second Law, Rapid Chloride Migration Test
To cite this article
Lipeng Wu, Peng Dai, Tiantian Liang, Durability Design of a Sea-Crossing Bridge in Zhejiang, China, American Journal of Traffic and Transportation Engineering. Vol. 1, No. 3, 2016, pp. 34-38. doi: 10.11648/j.ajtte.20160103.12
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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