Earthquakes and Structures

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Comparison of methods to estimate storey stiffness and storey strength in buildings

  • A.R.Vijayanarayanan (Amrita School of Engineering Coimbatore) ;
  • M. Saravanan (Structural Engineering Research Center, CSIR) ;
  • M. Surendran (Structural Engineering Research Center, CSIR)
  • Received : 2021.08.26
  • Accepted : 2024.03.27
  • Published : 2024.06.25
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Abstract

During earthquakes, regular buildings perform better than irregular buildings. In general, seismic design codes define a regular building using estimates of Storey Stiffness and Storey Strength. At present, seismic design codes do not recommend a specific method to estimate these parameters. Consequently, any method described in the literature can be applied to estimate the aforementioned parameters. Nevertheless, research has demonstrated that storey stiffness and storey strength vary depending on the estimation method employed. As a result, the same building can be regular or irregular, depending on the method employed to estimate storey stiffness and storey strength. Hence, there is a need to identify the best method to estimate storey stiffness and storey strength. For this purpose, the study presents a qualitative and quantitative evaluation of nine approaches used to determine storey stiffness. Similarly, the study compares six approaches for estimating storey strength. Subsequently, the study identifies the best method to estimate storey stiffness and storey strength using results of 350 linear time history analyses and 245 nonlinear time history analyses, respectively. Based on the comparison, it is concluded that the Fundamental Lateral Translational Mode Shape Method and Isolated Storey Method - A Particular Case are the best methods to estimate storey stiffness and storey strength of low-to-mid rise buildings, respectively.

Keywords

Acknowledgement

The authors thank Dr. P. Sunitha of IIIT Hyderabad for the valuable discussion towards improving the present work. Also, the second and the third authors thank the Director, CSIR-SERC for constant support and encouragement. Further, the authors value the help offered by colleagues and staff of the steel structural laboratory towards creating a collegial work environment.

References

  1. Ambrose, J. and Vergun, D. (1995), Simplified Building Design for Wind and Earthquake Forces, John Wiley & Sons Inc., Hoboken, NJ, USA.
  2. Arnold, C. (2001), Architectural Consideration (Chapter 6), The Seismic Design Handbook, 2nd Edition, Kluver Adademic Publisher, Norwell, MA, USA.
  3. ASCE 7-10 (2010), Minimum Design Loads for Buildings and Other Structures, 2nd Edition, American Society of Civil Engineers, Reston, VA, USA.
  4. Bertero, R.D. and Bertero, V.V. (2004), "Performance-based seismic engineering: Development and application of a comprehensive conceptual approach to the design of building", Earthquake Engineering: From Engineering Seismology to Performance-Based Engineering, 1st Edition, CRC Press, Boca Raton, FL, USA.
  5. Bureau of Indian Standards (BIS) (2000), Plain and Reinforced Concrete - Code of Practice, IS456; 2000, Bureau of Indian Standards, New Delhi, India.
  6. Bureau of Indian Standards (BIS) (2016), Indian Standard Criteria for Earthquake Resistant Design of Structures, IS:1893; 2016-Part 1, Bureau of Indian Standards, New Delhi, India.
  7. Chopra, A., Bertero, V. and Mahin, S. (1973), "Response of the olive view medical center main building during the san fernando earthquake", Proceedings of the Fifth World Conference on Earthquake Engineering, Rome, Italy, June. 
  8. Computer and Structures Inc. (2015), Integrated Software for Structural Analysis and Design, Perform 3D (Version 5), Walnut Creek, CA, USA.
  9. Computer and Structures Inc. (2015), SAP 2000 Version 15 (2015), Walnut Creek, CA, USA.
  10. Das, S. and Nau, J.M. (2001), "Seismic design aspects of vertically irregular reinforced concrete buildings", Earthq. Spectra, 19(3), 455-477. https://doi.org/10.1193/1.1595650.
  11. Hosseini, M. and Imagh-e-Naiini, M.R. (1999), "A quick method for estimating the lateral stiffness of building systems", Struct. Des. Tall Build., 8(3), 247-260. https://doi.org/10.1002/(SICI)1099-1794.
  12. Jain, S.K. and Navin, R. (1995), "Seismic overstrength in reinforced concrete frames", J. Struct. Eng. ASCE, 121(3), 580-585. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:3(580).
  13. Ke, K., Chen, Y., Zhou, X., Yam, M.C. and Hu, S. (2023b), "Experimental and numerical study of a brace-type hybrid damper with steel slit plates enhanced by friction mechanism", Thin Wall. Struct., 182, 110249. https://doi.org/10.1016/j.tws.2022.110249.
  14. Ke, K., Yam, M.C., Zhang, P., Shi, Y., Li, Y. and Liu, S. (2023c), "Self-centring damper with multi-energy-dissipation mechanisms: Insights and structural seismic demand perspective", J. Constr. Steel Res., 204, 107837. https://doi.org/10.1016/j.jcsr.2023.107837.
  15. Ke, K., Zhou, X., Zhu, M., Yam, M.C. and Zhang, H. (2023a), "Seismic demand amplification of steel frames with SMAs induced by earthquake sequences", J. Constr. Steel Res., 207, 107929. https://doi.org/10.1016/j.jcsr.2023.107929.
  16. Kreger, M.E. and Sozen, M.A. (1989), "Seismic response of imperial county services building in 1979", J. Struct. Eng. ASCE, 115(12), 3095-3111. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:12(3095).
  17. Liao, W.C. (2010), "Performance-based plastic design of earthquake resistant reinforced concrete moment frames", Doctor of Philosophy Thesis, University of Michigan, Ann Arbor, MI, USA.
  18. Murty, C.V.R., Goswami, R., Vijayanarayanan, A.R. and Mehta V.V. (2012), Some Concepts in Earthquake Behavior of Buildings, Gujarat State Disaster Management Authority, Gandhinagar, India.
  19. Muto, K. (1974), Aseismic Design Analysis of Buildings, Maruzen Company, Ltd, Tokyo, Japan.
  20. Palagala, V.Y. and Singhal, V. (2021), "Structural score to quantify the vulnerability for quick seismic assessment of RC framed buildings in India", Eng. Struct., 243, 112659. https://doi.org/10.1016/j.engstruct.2021.112659.
  21. Palissery, S., Goswami, R. and Murty, C.V.R. (2021), "Design of RC moment frame buildings consistent with earthquake resistant design philosophy", Earthq. Struct., 20(6), 599-615. https://doi.org/10.12989/eas.2021.20.6.599.
  22. Paulay, T. and Priestley, M.J.N. (1992), Seismic Design of Reinforced Concrete and Masonry Buildings, John Wiley & Sons Inc., Hoboken, NJ, USA.
  23. Rama Rao, G.V., Sunil, J.C. and Vijaya, R. (2021), "Soil-structure interaction effects on seismic response of open ground storey buildings", Sadhana, 46(2), 105. https://doi.org/10.1007/s12046-021-01633-0.
  24. Saiful, I., Hussain, R.R., Jumaat, M.Z. and Mahfuz ud Darain, K. (2014), "Implication of rubber-steel bearing nonlinear models on soft storey structures", Comput. Concrete, 13(5), 603-619. http://dx.doi.org/10.12989/cac.2014.13.5.603.
  25. Schultz, A.E. (1992), "Approximating lateral stiffness of storeys in elastic frames", J. Struct. Eng. ASCE, 118(1), 243-263. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:1(243).
  26. Tabeshpour, M.R. and Noorifard, A. (2016), "Comparing calculation methods of storey stiffness to control provision of soft storey in seismic codes", Earthq. Struct., 11(1), 1-23. https://doi.org/10.12989/eas.2016.11.1.001.
  27. Varughese, J.A., Menon, D. and Prasad, A.M. (2015), "Displacement-based seismic design of open ground storey buildings", Struct. Eng. Mech., 54(1), 19-33. https://doi.org/10.12989/sem.2015.54.1.019.
  28. Vijayanarayanan, A.R., Goswami, R. and Murty, C.V.R. (2015), "Identifying stiffness irregularity in multi-storey buildings", ICI J., 16(3), 19-22.
  29. Vijayanarayanan, A.R., Goswami, R. and Murty, C.V.R. (2017b), "Identifying stiffness irregularity in buildings using fundamental lateral mode shape", Earthq. Struct., 12(4), 437-448. http://doi.org/10.12989/eas.2017.12.4.437.
  30. Vijayanarayanan, A.R., Goswami., R. and Murty, C.V.R. (2017a), "Estimation of storey stiffness in multi-storey buildings", Proceedings of the 16th World Conference on Earthquake Engineering, Santiago, Chile, January.
  31. Zhang, H., Zhou, X., Ke, K., Yam, M.C., He, X. and Li, H. (2023), "Self-centring hybrid-steel-frames employing energy dissipation sequences: Insights and inelastic seismic demand model", J. Build. Eng., 63, 105451. https://doi.org/10.1016/j.jobe.2022.105451.
  32. Zhou, X., Huang, Y., Ke, K., Yam, M.C., Zhang, H. and Fang, H. (2023), "Large-size shape memory alloy plates subjected to cyclic tension: Towards novel self-centring connections in steel frames", Thin Wall. Struct., 185, 110591. https://doi.org/10.1016/j.tws.2023.110591.
  33. Zhou, Z., Chen, Y., Yam, M.C., Ke, K. and He, X. (2023), "Experimental investigation of a high strength steel frame with curved knee braces subjected to extreme earthquakes", Thin Wall. Struct., 185, 110596. https://doi.org/10.1016/j.tws.2023.110596.