Seismic stability of vibration-insulated turbine foundations depending on the frequency composition of seismic impact

Cover Page

Cite item


The seismic resistance of vibration-insulated turbine foundations is a complex and multifaceted problem that includes many aspects. The turbine foundation is a special building structure that unites parts of the turbine and generator unit into a single machine and it is used for static and dynamic loads accommodation. The number of designed and constructed power plants in high seismic level areas is large and steadily growing. In addition, engineers and designers deal with the issue of the frequency composition of the seismic impact influence on the seismic resistance of vibration-insulated turbine foundations. Dynamic calculations were performed in Nastran software using time history analysis and the finite element method. The main criteria for the seismic resistance of a vibration-insulated turbine foundation are the values of the maximum seismic accelerations in the axial direction at the level of the turbine installation and the values of vibration-insulated foundation maximum seismic displacements (deformations of vibration isolators). The results of the calculation experiments proved a significant effect of seismic action frequency composition on the behavior of the vibration-insulated turbine foundations. Calculations of foundations, taking into account earthquakes of the same intensity, but with different values of the prevailing frequencies of the impact, lead to the differing by several times values of the maximum seismic accelerations at the turbine level and seismic displacements.

About the authors

Aleksandr E. Babsky


Author for correspondence.

chief specialist (Structural Dynamics) of the Construction Department - Turbine Island

82A Savushkina St, Saint Petersburg, 197183, Russian Federation

Vladimir V. Lalin

Peter the Great Saint Petersburg Polytechnic University


Professor of the Higher School of Industrial, Civil and Road Construction of the Institute of Civil Engineering, Dr.Sc.

29 Politechnicheskaya St, Saint Petersburg, 195251, Russian Federation

Ilia I. Oleinikov



design engineer of the Construction Department - Turbine Island

82A Savushkina St, Saint Petersburg, 197183, Russian Federation

Vladimir A. Tarasov

JSC ATOMPROEKT; Peter the Great Saint Petersburg Polytechnic University


graduate student of the Higher School of Industrial, Civil and Road Construction of the Institute of Civil Engineering

82A Savushkina St, Saint Petersburg, 197183, Russian Federation; 29 Politechnicheskaya St, Saint Petersburg, 195251, Russian Federation


  1. Birbraer A.N. Raschet konstrukcij na sejsmostojkost' [Seismic analysis of structures]. Saint Petersburg: Nauka Publ.; 1998. (In Russ.)
  2. Smirnov V.I. Seysmoizolyatsiya-innovatsionnaya tekhnologiya zashchity vysotnykh zdaniy ot zemletryaseniy v Rossii i za rubezhom [Seismic isolation - an innovative technology for protecting high-rise buildings from earthquakes in Russia and abroad]. TsNIISK imeni V.A. Kucherenko 80 let [80 years of the Research Institute of Building Constructions (TSNIISK) named after V.A. Koucherenko]. Moscow; 2007. p. 24-32. (In Russ.).
  3. Smirnov V.I. Sovremennaya zashchita ot zemletryaseniy [Modern protection against earthquakes]. High rise buildings. 2008;(4):110-115. (In Russ.).
  4. Ayzenberg Ya.M., Nejman A.I., Abakarov A.D. Adaptivnyye sistemy seysmicheskoy zashchity sooruzheniy [Adaptive seismic protection systems for structures]. Moscow: Nauka Publ.; 1978. (In Russ.).
  5. Rutman Yu.L., Ostrovskaya N.V. Dinamika sooruzhenij: sejsmostokost', sejsmozashchita, vetrovye nagruzki [Dynamics of structures: seismic capacity, seismic protection, wind load]. Saint Petersburg: SPbGASU; 2019. (In Russ.).
  6. Uzdin A.M., Elizarov S.V., Belash T.A. Sejsmostojkie konstrukcii transportnyh zdanij i sooruzhenij [Seismic resistant structures of transport buildings and structures]. Moscow: Educational and Methodological Center for Education in Railway Transport; 2012. (In Russ.).
  7. Tyapin A.G. Raschyot sooruzhenij na sejsmicheskoe vozdejstvie s uchyotom vzaimodejstviya s gruntovym osnovaniem [Calculation of the structure for seismic impact, taking into account the impact with a soil base]. Moscow: ACB Publ.; 2013. (In Russ.).
  8. Hiraki T., Nagata S., Kanazawa K., Imaoka T., Nakayama T., Umeki Y., Jimbo M., Shimizu H. Development of an evaluation method for seismic isolation systems of nuclear power facilities. Part 9. Ultimate properties of full-scale lead rubber bearings based on breaking test. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; 2014.
  9. Chen J., Zhao C., Xu Q., Yuan C. Seismic analysis and evaluation of the base isolation system in AP1000 NI under SSE loading. Nuclear Engineering and Design. 2014;278:117-133.
  10. Anand V., Satish Kumar S.R. Seismic soil-structure interaction: a state-of-the-art review. Structures. 2018;16: 317-326.
  11. Kumar M., Whittaker A.S., Constantinou M.C. An advanced numerical model of elastomeric seismic isolation bearings. Earthquake Engineering and Structural Dynamics. 2014.
  12. Kumar M., Whittaker A.S., Constantinou M.C. Extreme earthquake response of nuclear power plants isolated using sliding bearings. Nuclear Engineering and Design. 2017;316:9-25.
  13. Kumar M., Whittaker A.S, Constantinou M.C. Response of base-isolated nuclear structures to extreme earthquake shaking. Nuclear Engineering and Design. 2015.
  14. Medel-Vera C., Ji T. Seismic protection technology for nuclear power plants: a systematic review. Journal of Nuclear Science and Technology. 2015;52(5):607-632.
  15. Politopoulos I., Sergis I., Wang F. Floor response spectra of a partially embedded seismically isolated nuclear plant. Soil Dynamics and Earthquake Engineering. 2015;78:213-217.
  16. Sayed M.A., Go S., Cho S.G., Kim D. Seismic responses of base-isolated nuclear power plant structures conside-ring spatially varying ground motions. Structural Engineering and Mechanics. 2015;54(1):169-188. sem.2015.54.1.169
  17. Firoozabad E.S., Jeon B.G., Choi H.S., Kim N.S. Seismic fragility analysis of seismically isolated nuclear power plants piping system. Nuclear Engineering and Design. 2015;284:264-279.
  18. Zhou Z., Wong J., Mahin S. Potentiality of using vertical and three-dimensional isolation systems in nuclear structures. Nuclear Engineering and Technology. 2016;48(5):1237-1251.
  19. Kostarev V.V., Petrenko A.V., Vasilyev P.S. An advanced seismic analysis of an NPP powerful turbogenerator on an isolation pedestal. Nuclear Engineering and Design. 2007;237(12-13):1315-1324.
  20. Chasalevris A. Stability and Hopf bifurcations in rotor-bearing-foundation systems of turbines and generators. Tribology International. 2020;145:106154.
  21. Yang Y., Bashir M., Li C., Wang J. Analysis of seismic behaviour of an offshore wind turbine with a flexible foundation. Ocean Engineering. 2019;178:215-228.
  22. Wang P., Zhao M., Du X., Liu J., Xu C. Wind, wave and earthquake responses of offshore wind turbine on monopile foundation in clay. Soil Dynamics and Earthquake Engineering. 2018;113:47-57. j.soildyn.2018.04.028
  23. Najafijozani M., Becker T.C., Konstantinidis D. Evaluating adaptive vertical seismic isolation for equipment in nuclear power plants. Nuclear Engineering and Design. 2020;358.
  24. Yu C.C., Bolisetti C., Coleman J.L., Kosbab B., Whittaker A.S. Using seismic isolation to reduce risk and capital cost of safety-related nuclear structures. Nuclear Engineering and Design. 2018;326:268-284. nucengdes.2017.11.016
  25. Jeong Y.S., Baek E.R., Jeon B.G., Chang S.J., Park D.U. Seismic performance of emergency diesel generator for high frequency motions. Nuclear Engineering and Technology. 2019;51(5):1470-1476.
  26. Ismail M. Seismic isolation of structures. Part I. Concept, review and a recent development. Hormigón y Acero. 2018;69(285):147-161.
  27. Calvi P.M., Calvi G.M. Historical development of friction-based seismic isolation systems. Soil Dynamics and Earthquake Engineering. 2018;106:14-30.
  28. Muravyeva L., Vatin N. Risk assessment for a main pipeline under severe soil conditions on exposure to seismic forces. Applied Mechanics and Materials. 2014;635-637:468-471.
  29. Dražić J., Vatin N. The Influence of Configuration on to the Seismic Resistance of a Building. Procedia Engineering. 2016;165:883-890.
  30. Vatin N.I., Ivanov A.Yu., Rutman Y.L., Chernogorskiy S.A., Shvetsov K.V. Earthquake engineering optimization of structures by economic criterion. Magazine of Civil Engineering. 2017;8:67-83.
  31. Sargsyan A.E. Dinamika i seismostoikost' sooruzhenii atomnykh stantsii [Dynamics and seismic stability of nuclear power plant structures]. Sarov: RFNC-VNIIEF; 2013. (In Russ.).
  32. Cho S.G., Kim D., Chaudhary S. A simplified model for nonlinear seismic response analysis of equipment cabinets in nuclear power plants. Nuclear Engineering and Design. 2011;241(8):2750-2757.
  33. Salman K., Gook Cho S. Effect of frequency content of earthquake on the seismic response of interconnected electrical equipment. CivilEng. 2020;1(3):198-215.
  34. Zhang Y. Effect of seismic frequency spectra on surrounding rock damage evolution of large underground caverns. Advances in Materials Science and Engineering. 2018;1-13.
  35. Short S., Hardy G., Merz K., Johnson J. Effect of seismic wave incoherence on foundation and building response. Washington, DC: The US Department of Energy; 2005
  36. Bulushev S.V. Comparison of the results of calculating structures for given accelerograms by nonlinear static and nonlinear dynamic methods. Structural Mechanics of Engineering Constructions and Buildings. 2018;14(5):369-378. 1815-5235-2018-14-5-369-378
  37. Tarasov V. Ensuring seismic stability of the vibration-insulated foundation of the turbine unit. Natural and Technological Risks. Building Safety. 2020;(1):44-47.
  38. Tarasov V.A. Double seismic insulation system of turbine unit foundation. Construction of Unique Buildings and Structures. 2020;91:9101.

Copyright (c) 2021 Babsky A.E., Lalin V.V., Oleinikov Ilia I.I., Tarasov V.A.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies