Research on Load Transfer Mechanism of Steel-Concrete Joint Section of Hybrid Beam Cable-Stayed Bridge

Abstract:

The WuSu Bridge of HeiXiaZi Island is a hybrid girder cable-stayed bridge with one pylons and single cable plane. Based on the similarity principle, a 1:3 reduced scale test model of steel-concrete joint section was designed to study the load transfer mechanism and verify the rationality. The test model was loaded according to the serviceability limit state, and the stress distribution of control sections and main members were obtained. The finite element analysis on the test model was carried out and the load transfer mechanism was studied by the way of combining the test results and the FEA results. As shown in the results, the load from steel is smoothly delivered to concrete through steel-concrete joint section, and the load distribution of the components of steel-concrete joint section is rational. It is proved that the steel-concrete composite joint section is reasonably designed.

• Periodical: Advanced Materials Research (Volumes 639-640)
• Pages: 216-219
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.639-640.216
• Online since: January 2013
• Authors: Da Li Zhang, Yu Wen Bao, Jian Hui Gao, Lin Xiao, Xiao Zhen Li
• Keywords: Finite Element Analysis (FEA), Hybrid Girder Cable-Stayed Bridge, Load Transfer Mechanism, Model Test, Steel-Concrete Joint Section, Stress Distribution

References

[1] Liu Yuqing: Steel-concrete hybrid bridge, Beijing China Communications Press, (2004). (in Chinese)

[2] Rovnak M, Duricova A, Ivanco V: Nontraditional shear connections in steel-concrete composite structures[J]. Composite and Hybrid Structures, 2000, 1(2): 305-312.

[3] Liu Qiong, Huang Cai-ping, Dang Zhi-jie: Experimental research on the load carrying performance of Steel-concrete junction in box girder of Cable-stayed bridge[J]. Journal of Railway Engineering Society, 2009(9): 46-49. (in Chinese)

[4] Huang Caiping, Zhang Zhongxian, Chen Kaili: Model test and transfer mechanism of steel-concrete composite structure for hybrid girder cable-stayed bridges. Journal of Huazhong University of Science and Technology (Natural Science Edition), v 40, n 1, pp.67-71, January 2012. (in Chinese)

[5] Ministry of Communication of P.R. of China: Steel and wood structure design code for highway bridge, Beijing, People's Communication Press, (1989). (in Chinese)