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Seismic performance of horizontal swivel system of asymmetric continuous girder bridge
DOI:
https://doi.org/10.24425/ace.2023.144174Abstract
The bridge horizontal swivel system generally adopts a symmetrical structure and uses a spherical hinge structure that can adjust the rotation to complete rotation construction. Because of the complexity of railway lines under bridges, some asymmetrical horizontal swivel systems have been increasingly applied in practical engineering in recent years. This system is more suitable for areas with complex railway lines, reduces the bridge span, and provides better economic benefits. However, it is also extremely unstable. In addition, instability can easily occur under dynamic loads, such as earthquake action and pulsating wind effects. Therefore, it is necessary to study their mechanical behavior. Based on the horizontal swivel system of an 11,000-ton asymmetric continuous girder bridge, the dynamic response of the horizontal swivel system to seismic action was studied using the finite element simulation analysis method. Furthermore, using the Peer database, seismic waves that meet the calculation requirements are screened for time-history analysis and compared to the response spectrum method. The mechanical properties of the structural system during and after rotation were obtained through calculations. During rotation, the seismic response of the structure is greater. To reduce the calculation time cost, an optimization algorithm based on the mode shape superposition method is proposed. The calculation result is 87% that of the time-history analysis, indicating a relatively high calculation accuracy.References
[1] T. Siwowski and A. Wysocki, “Horizontal rotation via floatation as an accelerated bridge construction for long-span footbridge erection: Case study”, Journal of Bridge Engineering, vol. 20, no. 4, pp. 124-126, 2015, DOI: 10.1061/(ASCE)BE.1943-5592.0000693.
[2] J. W. Wang, B. Cao, and B. Huang, “Stability monitoring method of UHPC spherical hinge horizontal rotation system”, Archives of Civil Engineering, vol. 68, no. 3, pp. 601-616, 2022, DOI: 10.24425/ace.2022.141905.
[3] J. Du, “Innovation and Prospect of bridge Swivel Construction Technology”, Railway Construction Technology, vol. 2012, no. 4, pp. 7-11, 2012.
[4] D.R. Gharpure and R.B. Sachin, “Poira bridge: Construction of India’s first horizontal swing bridge”, Indian Concrete Journal, vol. 81, no. 8, pp. 33-35, 2007.
[5] J. Zhang, T.E. El-Diraby, “Constructability analysis of the bridge superstructure rotation construction method in China”, Journal of Construction Engineering and Management, vol. 132, no. 4, pp. 353-360, 2006, DOI: 10.1061/(ASCE)0733-9364(2006)132:4(353).
[6] T. Siwowski and A. Wysocki, “Horizontal rotation via floatation as an accelerated bridge construction for long-span footbridge erection: Case study”, Journal of Bridge Engineering, vol. 20, no. 4, pp. 124-126, 2015, DOI: 10.1061/(ASCE)BE.1943-5592.0000693.
[7] E. Watanabe, T. Maruyama, H. Tanaka, and S. Takeda, “Design and construction of a floating swing bridge in Osaka”, Marine Structures, vol. 13, no. 4-5, pp. 437-445, 2000, DOI: 10.1016/S0951-8339(00)00016-2.
[8] C. Wang, “Integral stress analysis and pier optimization design of T-shaped rigid frame bridge with Swivel Construction”, M.A. thesis, Southwest Jiaotong University, 2017.
[9] X. Wang, “Numerical analysis of ANSYS engineering structure”, Bei Jing: People’s Communications Press, pp.10-49, 2007.
[10] S. Huang, “National standards of the people’s Republic of China: Code for seismic design of buildings (GB 50011-2010)”, China Construction Industry Press, 2016.
[11] Y. Tang, “National standards of the people’s Republic of China: Detailed rules for earthquake resistance of Highway Bridges (GBT50152-2012) [S]”, People’s Communications Press, 2012.
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