Durability design of composite bridges with given life in seasonal freezing region
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Bibliographic Details
| Author(s): |
Xuefei Shi
(Tongji University, Shanghai, China)
Qi Xu (Tongji University, Shanghai, China) Haiying Ma 
(Tongji University, Shanghai, China)
Jian Liu (Liaoning Provincial Transportation Planning and Design Institute Co., Ltd., Shenyang, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 653-659 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/ghent.2021.0653 | ||||
| Abstract: |
Steel-concrete composite bridges are currently widely used in highway bridges in China. To reduce durability problems in seasonal freezing region, a design method with given service life is used. The service life is given on the basis of the environment condition and design requirements; then the structural design and safety analysis are carried out, and the durability design and analysis of the structural components are conducted. With the consideration of the mechanical performance, construction convenience and life-cycle cost, the structural scheme for bridges using twin-I girders, cross beams and precast full-width deck is recommended. Weather resistant steel is recommended to be used in nonmarine seasonal freezing regions with stabilization treatment, waterproof and drainage design, local anti-corrosion coating. Finally, a design process considering material, protective layer thickness and construction control is proposed to improve concrete deck durability. |
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| Keywords: |
durability design bridge maintenance Steel plate composite girder bridge Life-cycle design
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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