New Type of Composite Girder Design and Research on Key Mechanical Behavior of JiaoJiang Second Bridge

Abstract:

JiaoJiang second bridge is a 5-span continuous cable-stayed bridge with double pylons and double cable planes whose main span is 480m. The main girder’s cross section has used a new type of composite beams --Semi-enclosed steel box composite girder, this article describes the design concept ofto this new type of composite girder, researched and analyzed the overall mechanical behavior of the composite girder, the spatial bearing behavior of the composite girder’s connecting piece, the segmental assembling technology of the composite girder and the mechanical behavior of its connecting piece by means of experiment and finite element calculation, then looks forward to the popularization and application prospect of this new type of composite girder.

• Periodical: Key Engineering Materials (Volume 858)
• Pages: 165-173
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.858.165
• Online since: August 2020
• Authors: Li Ping Xu*, Li Min Dai, Long Guo
• Keywords: Cable-Stayed Bridge, Mechanical Behavior of the Connecting Piece, Overall Mechanical Behavior, Segmental Assembling, Semi-Enclosed Steel Box Composite Girder, Shear Nail

References

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[3] Key Technology of Design and Construction of Jiaojiang Second Bridge Project, People's Communications Publishing Co., Ltd. (2015).

[4] Xiang Haifan et al., Bridge Concept Design, People's Communications Press (2011).

[5] Nie Jianguo et al., Steel-Concrete Composite Bridge, People's Communications Press (2011).