Seismic Response of Underground Structure under Vertical Seismic Excitation

Abstract:

Seismic response of shallowly buried underground under vertical seismic excitation is studied. In order to simplify the analysis two steps are adopted in the analysis. In the first step structure is looked at as rigid body, and the dynamic response of the structure under vertical seismic excitation is obtained on the basis of soil-structure dynamic interaction analysis. In the second step at first the natural frequencies and mode shapes of the structure are obtained with consideration of the bending restraint of the side walls to roof slab, and then the dynamic response is determined by taking the dynamic response of rigid body in the first step as input, and furthermore the bending moment of roof slab is obtained. Key words: vertical seismic excitation, roof slab, soil-structure interaction, dynamic response

• Periodical: Advanced Materials Research (Volume 1020)
• Pages: 463-471
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1020.463
• Online since: October 2014
• Authors: Cheng Zhi Qi*, Xu Liu, Guo Hua Li, Deng Pan, Jian Luo
• Keywords: Dynamic Response, Roof Slab, Soil-Structure Interaction (SSI), Vertical Seismic Excitation

References

[1] N.M. Newmark, J.A. Blume and K.K. Karpur, Seismic design spectra for nuclear power plants, J. Power Division, 99(1973), 287-303.

DOI: 10.1061/jpweam.0000753

[2] AIJ. Preliminary reconnaissance report of the 1995 Hyogo-ken Nanbu earthquake, Architectural Institute of Japan, English Edition Report, Tokyo, April, (1995).

[3] A.S. Elnashai, Seismic design with vertical earthquake motion, In: Seismic Design Methodologies for the Next Generation of Codes, edited by Fajfar and Krawwinkler, 91-99, Balkema, Rotterdam, (1997).

DOI: 10.1201/9780203740019-8

[4] C.T. Yang. The disaster analysis of the subway stations in great Hanshin earthquake, Earthquake Resistant Engineering, 2(1996), 40-43.

[5] X. Yu, Q.H. Qian, Y.T. Zhao et al, The effect of vertical earthquake loading on subway structure failure. J. PLA University of Sci. and Tech. ( Natural science edition), 2(3) (2001), 30-35.

[6] S.B. Guo Shengbing, Y.T. Zhao, Y. Zhao et al, Dynamic analysis of underground structure under vertical and horizontal loadings. Underground space, 22(4)(2002), 314－319.

[7] H.Y. Zhuang, S.G. Cheng, G.X. Chen, Numerical simulation and analysis of earthquake damages of Dakai metro station caused by Kobe earthquake. Rock and Soil Mechanics, 29(1)(2008), 246-250.

[8] R. W. Clough, J. Penzien, Dynamics of structures, McGraw-Hill, Inc., New York, (1993).

[9] Y.Q. Long, Computation of beams on foundation, Beijing, People's Educational Publisher, (1981).

[10] W. T. Thomson, M.D. Dahleh, Theory of vibration with application (Fifth edition) [M], Prentice- Hall Inc. , New Jersey, (1998).