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Strength reduction factor for multistory building-soil systems

  • Received : 2013.10.17
  • Accepted : 2013.12.10
  • Published : 2014.03.25

Abstract

This paper is devoted to investigate the effects of SSI on strength reduction factor of multistory buildings. A new formula is proposed to estimate strength reduction factors for MDOF structure-soil systems. It is concluded that SSI reduces the strength reduction factor of MDOF systems. The amount of this reduction is relevant to the fundamental period of structure, soil flexibility, aspect ratio and ductility of structure, and could be significantly different from corresponding fixed-base value. Using this formula, measuring the amount of this error could be done with acceptable accuracy. For some practical cases, the error attains up to 50%.

References

  1. Bielak, J. (1975), "Dynamic behavior of structures with embedded foundations", Earthq. Eng. Struct. D., 3, 259-274.
  2. Abedi-Nik, F. and Khoshnoudian, F. (2011), "On intensity measure selection for nonlinear dynamic analysis of soil-MDOF structure interacting systems", Third International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Corfu, Greece, May.
  3. Abedi-Nik, F. and Khoshnoudian, F. (2012), "Evaluation of ground motion scaling methods in soil-structure interaction analysis", J. Struct. Design Tall. Spec. Build., DOI: 10.1002/tal.1021. https://doi.org/10.1002/tal.1021
  4. ASCE/SEI 7 (2010), American Society of Civil Engineers, Minimum Design Loads for Buildings and Other Structures.
  5. Aviles, J. and Perez-Rocha, L.E. (2003), "Soil-structure interaction in yielding systems", Earthq. Eng. Struct. D., 32(11), 1749-1771. https://doi.org/10.1002/eqe.300
  6. Aviles, J. and Perez-Rocha, L.E. (2005), "Influence of foundation flexibility on R${\mu}$ and C${\mu}$ factors", J. Struct. Eng., 131(2), 221-230. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:2(221)
  7. Bielak, J. (1976), "Modal analysis for building-soil interaction", Eng. Mech. Division. - ASCE, 102(5), 771-786.
  8. Chopra, A.K. and Gutierrez, J.A. (1974), "Earthquake response analysis of multistory buildings including foundation interaction", Earthq. Eng. Struct. D., 3(1), 65-77. https://doi.org/10.1002/eqe.4290030106
  9. Ciampoli, M. and Pinto, P.E. (1995), "Effects of soil-structure interaction on inelastic seismic response of bridge piers", J. Struct. Eng., 121(5), 806-814. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:5(806)
  10. Cordova, P., Deierlein, G., Mehanny, S.F. and Cornell, C.A. (2000), "Development of a two-parameter seismic intensity measure and probabilistic assessment procedure", The Second U.S.-Japan Workshop on Performance-Based Earthquake Engineering Methodology for Reinforced Concrete Building Structures, Hokkaido, Japan, Sep.
  11. FEMA (2005), "Improvement of nonlinear static seismic analysis procedures", Technical Report-440, Federal Emergency Management Agency.
  12. Lai, S.P. and Biggs, J.M. (1980), "Inelastic response spectra for aseismic building design", J. Struct. Division, 106(6), 1295-1310.
  13. Ganjavi, B. and Hao, H. (2012), "Strength reduction factor for MDOF soil-structure systems", J. Struct. Design Tall. Spec. Build., DOI: 10.1002/tal.1022. https://doi.org/10.1002/tal.1022
  14. Iguchi, M. (1978), "Dynamic interaction of soil-structure with elastic rectangular foundation", Proceeding of the fifth Japanese Earthquake Engineering Symposium, Tokyo, Japan.
  15. Jennings, P.C. and Bielak, J. (1973), "Dynamics of building-soil interaction", Bull. Seismol. Soc. Am., 63(1), 9-48.
  16. Lee, L.H., Han, S.W. and Oh, Y.H. (1999), "Determination of ductility factor considering different hysteretic models", Earthq. Eng. Struct. D., 28(9), 957-977. https://doi.org/10.1002/(SICI)1096-9845(199909)28:9<957::AID-EQE849>3.0.CO;2-K
  17. Luco, J. (1969), "Dynamic interaction of a shear wall with the soil", J. Eng. Mech. Division., 95(2), 333-346.
  18. Meek, W. and Wolf, J.P. (1993), "Why cone models can represent the elastic half-space", Earthq. Eng. Struct. D., 22(9), 759-771. https://doi.org/10.1002/eqe.4290220903
  19. Meek, W. and Wolf, J.P. (1994), "Material damping for lumped-parameter models of foundation", Earthq. Eng. Struct. D., 23(4), 349-362. https://doi.org/10.1002/eqe.4290230402
  20. Moghaddasi, M., Cubrinovski, M., Pampanin, S., Carr, A. and Chase, J.G. (2010), "Probabilistic evaluation of soil-foundation-structure interaction effects on seismic structural response", Earthq. Eng. Struct. D., DOI: 10.1002/eqe.
  21. Mylonakis, G. and Gazetas, G. (2000), "Seismic soil-structure interaction: beneficial or detrimental", J. Earthq. Eng., 4(3), 227-301.
  22. Newmark, N.M. and Hall, W.J. (1973), "Seismic design criteria for nuclear reactor facilities", Building Research Series No. 46, National Bureau of Standards, US Department of Commerce, Washington, DC, 209-236.
  23. Mylonakis, G. and Gazetas, G. (2001), "Soil-structure interaction effects on elastic and inelastic structures" Proceedings of the Fourth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics and Symposium, San Diego, CA, March.
  24. Mylonakis, G., Nikolaou, S. and Gazetas, G. (2006), "Footings under seismic loading: analysis and design issues with emphasis on bridge foundations", Soil D. Earthq. Eng., 26(9), 824-853. https://doi.org/10.1016/j.soildyn.2005.12.005
  25. Nassar, A. and Krawinkler, H. (1991), "Seismic demands for SDOF and MDOF systems", Report No. 95, The John A. Blume Earthquake Engineering Center, Stanford University, Stanford, CA.
  26. Riddel, R. and Newmark, N.M. (1979), "Statistical analysis of the response of nonlinear systems subjected to earthquakes", Structural Research Series No. 468, Department of Civil Engineering, University of Illinois, Urbana.
  27. Riddel, R., Hidalgo, P. and Cruz, E. (1989), "Response modification factors for earthquake resistant design of short period structures", Earthq. Spectra, 5(3), 571-590. https://doi.org/10.1193/1.1585541
  28. Rodriguez, M. and Montes, R. (2000), "Seismic response and damage analysis of buildings supported on flexible soils", Earthq. Eng. Struct. D., 29(5), 647-665. https://doi.org/10.1002/(SICI)1096-9845(200005)29:5<647::AID-EQE929>3.0.CO;2-A
  29. Veletsos, A.S. and Newmark, N.M. (1960), "Effect of inelastic behavior on the response of simple systems to earthquake motions", Proceedings of the second World Conference on Earthquake Engineering, Tokyo, July.
  30. Veletsos, A.S. and Meek, J.W. (1974), "Dynamic behavior of building-foundation systems", Earthq. Eng. Struct. D., 3(2), 121-138. https://doi.org/10.1002/eqe.4290030203
  31. Wolf, J.P. (2004), Foundation vibration analysis: a strength-of-materials approach, Butterworth-Heinemann, Oxford, UK.
  32. Veletsos, A.S. and Verbic, B. (1974), "Dynamics of elastic and yielding structure-foundation systems", Proceedings of 5th World Conf. Earthquake Engineering, Rome, Italy, June.
  33. Vidic, T., Fajfar, P. and Fischinger, M. (1992), "A procedure for determining consistent inelastic design spectra", Proceeding of Workshop on nonlinear seismic analysis of RC structures, Bled, Slovenia, July.
  34. Wolf, J.P. (1994), Foundation vibration analysis using simple physical models, Prentice-Hall, Englewood Cliffs, NJ.

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