Seismic Analysis of Typical Cut-and-Cover Subway Stations in Beijing

Abstract:

To obtain the seismic responses of typical subway stations in Beijing, a nonlinear analysis was conducted using a pushover method for seismic analysis and design of underground structures. The analysis mainly focuses on stress in columns and side walls and relative displacement between top and bottom slabs under 3 different levels of PGA (peak ground acceleration). From the analysis, the column shows good ductility due to its high ratio of reinforcement, and it has a good performance under strong motions. Compared with columns, side walls suffer from brittle failure and lose bearing capacity prior to column for its lower ratio of reinforcement. The calculated displacement indicates that the relative displacement between top and bottom slabs is linear proportional to peak ground relative displacement (PGRD). And compared with peak ground acceleration (PGA), PGRD is a more reliable design parameter of ground motion for underground structures. And the typical subway stations in Beijng can withstand the earthquake with design PGA up to 0.2 g.

• Periodical: Applied Mechanics and Materials (Volumes 90-93)
• Pages: 2200-2206
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.90-93.2200
• Online since: September 2011
• Authors: Jing Bo Liu, Dong Dong Zhao, Wen Hui Wang
• Keywords: Design Parameter, Pushover Analysis, Seismic Analysis, Underground Structure

References

[1] Qian Qihu, The Fourth Wave of Geotechnology. Underground Space, Vol. 19, issue 4, 267-272, 1999.

[2] H. Huo, A. Bobet, G. Fernandez, J. Ramirez. Load Transfer Mechanisms between Underground structure and surrounding ground: evaluation of the failure of the daikai station. Journal of Geotechnical and Geoenvironmental Engineering, Vol. 131, issue 12, 1522-1533, 2005.

DOI: 10.1061/(asce)1090-0241(2005)131:12(1522)

[3] Shawky, A, Maekawa, K. Collapse mechanism of underground RC structures during Hanshin Great Earthquake. Proc., First Int. Conf. on Concrete Structures, Cairo, Egypt, 1-17, 1997.

[4] Liu Jingbo, Liu Xiangqing, Li Bin., A pushover analysis method for seismic analysis and design of underground structures, China civil engineering journal, Vol. 41, issue 4, 73-80, 2008.

[5] Liu Jingbo, Liu Xiangqing, Xue Yingliang. Study on Applicability of A Pushover Analysis Method for Seismic Analysis and Design of Underground Structures. Engineering Mechanics, Vol. 26, issue 1, 49-57, 2009.

[6] Senzai Samata, Hajime Ohuchi, Takashi Matsuda. Astudy of the Damage of Subway Sructures during the 1995 Hanshin-Awaji Earthquake. Cement and Composite, Vol. 19, 223-239, 1997.

DOI: 10.1016/s0958-9465(97)00018-8

[7] Li Bin, Liu Jingbo, Liu Xiangqing. Study on seismic responses of a subway station and design parameters of ground motions. Journal of Earthquake Engineering and Engineering Vibration, Vol. 28, issue 1, 17-23, 2008.

[8] Hashash Y M A, Hook J J, Schmidt B, et al. Seismic design and analysis of underground structures [J]. Tunnelling and Underground Space Technology, Vol. 16, issue 4, 247-293, 2001.

DOI: 10.1016/s0886-7798(01)00051-7

[9] Liu Xiangqing, Liu Jingbo. Time History Analysis of Elasto-Plastic Seismic Response of A Subway Station Structure With Arched Cross Section Based on Fiber Model. Engineering Mechanics, Vol. 25, issue 10, 150-157, 2008.

[10] Hongbin Huo. Seismic Design and Analysis of Rectangular Underground Structures. PhD thesis, Purde University, 2005.