Earthquakes and Structures

  • 제22권2호
  • /
  • Pages.147-155
  • /
  • 2022
  • /
  • 2092-7614(pISSN)
  • /
  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A probabilistic seismic demand model for required separation distance of adjacent structures

  • Rahimi, Sepideh (Department of Civil Engineering, Islamic Azad University - Nour branch) ;
  • Soltani, Masoud (Department of Civil and Environmental Engineering, Tarbiat Modares University)
  • 투고 : 2020.04.24
  • 심사 : 2022.01.06
  • 발행 : 2022.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Regarding the importance of seismic pounding, the available standards and guidelines specify minimum separation distance between adjacent buildings. However, the rules in this field are generally based on some simple assumptions, and the level of confidence is uncertain. This is attributed to the fact that the relative response of adjacent structures is strongly dependent on the frequency content of the applied records and the Eigen frequencies of the adjacent structures as well. Therefore, this research aims at investigating the separation distance of the buildings through a probabilistic-based algorithm. In order to empower the algorithm, the record-to-record uncertainties, are considered by probabilistic approaches; besides, a wide extent of material nonlinear behaviors can be introduced into the structural model by the implementation of the hysteresis Bouc-Wen model. The algorithm is then simplified by the application of the linearization concept and using the response acceleration spectrum. By implementing the proposed algorithm, the separation distance in a specific probability level can be evaluated without the essential need of performing time-consuming dynamic analyses. Accuracy of the proposed method is evaluated using nonlinear dynamic analyses of adjacent structures.

키워드

참고문헌

  1. Abdel Raheem, S.H., Fooly, M.Y.M., Omar, M. and Abdel Zaher, A.K. (2019), "Seismic pounding effects on the adjacent symmetric buildings with eccentric alignment", Earthq. Struct., 16(6), 715-726. https://doi.org/10.12989/eas.2019.16.6.715.
  2. ATC (2015), "Rapid visual screening of buildings for potential seismic hazard", FEMA P-154, Federal Emergency Management Agency, Washington, D.C.
  3. ASCE (2016), "Minimum design loads and associated criteria for buildings and other structures", ASCE/SEI Standard, 7-16, Engineering Institute, Reston, VA.
  4. Cole, G.L., Dhakal, R., Carr, A.J. and Bull, D.K. (2010), "Building pounding state of the art: Identifying structures vulnerable to pounding damage", NZSEE Conference, Wellington, New Zealand, March
  5. Davenport, A.G. (1964), "Note on the distribution of the largest value of a random function with application to gust loading", Proc. Inst. Civil Eng., 28(2), 187-196. https://doi.org/10.1680/iicep.1964.10112.
  6. Efraimiadou, S., Hatzigeorgiou, G.D. and Beskos, D.E. (2012), "Structural pounding between adjacent buildings: the effects of different structures configurations and multiple earthquakes", Proc. 15th World Conf. Earthq. Eng., Lisbon, Portugal, September.
  7. Elghadamsi, F.E., Mohraz. B. and Moayyad. P. (1988), "Time-dependent power spectral density of earthquake ground motions", Int. J. Soil Dynam. Earthq. Eng., 7(1), 15-21. https://doi.org/10.1016/S0267-7261(88)80011-3.
  8. Hong, H.P., Wang, S.S. and Hong, P. (2003), "Critical building separation distance in reducing pounding risk under earthquake excitation", Struct. Saf., 25(3), 287-303. https://doi.org/10.1016/S0167-4730(02)00080-2.
  9. Jeng, V., Kasai, K. and Maison, B.F. (1992), "Spectral difference method to estimate building separations to avoid pounding", Earthq. Spectra, 8(2), 201-223. https://doi.org/10.1193/1.1585679.
  10. Karayannis, C.G. and Favvata, M.J. (2005), "Earthquake-induced interaction between adjacent reinforced concrete structures with non-equal heights", Earthq. Eng. Struct. Dynam., 34(1), 1-20. https://doi.org/10.1002/eqe.398.
  11. Kanai, K. (1957), "Semi-empirical formula for the seismic characteristics of the ground motion", B. Earthq. Res. Inst., 35, 209-325.
  12. Kasai, K., Jagiasi, A.R. and Jeng, V. (1996), "Inelastic vibration phase theory for seismic pounding mitigation", Struct. Eng., 122(10), 1136-1146. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:10(1136).
  13. Kheyroddin, A., Kioumarsi, M., Kioumarsi, B. and Faraei, A. (2018), "Effect of lateral structural systems of adjacent buildings on pounding force", Earthq. Struct., 14(3), 229-239. https://doi.org/10.12989/eas.2018.14.3.229.
  14. Licari, M., Sorace, S. and Terenzi, G. (2015), "Nonlinear Modeling and Mitigation of Seismic Pounding between R/C Frame Buildings", J. Earthq. Eng., 19(3), 431-460. https://doi.org/10.1080/13632469.2014.984370.
  15. Lopez-Garcia, D. (2004), "Separation distance necessary to prevent seismic pounding between adjacent structures", Ph.D. Dissertation, University at Buffalo, Buffalo, U.S.A.
  16. Lopez-Garcia, D. and Soong, T.T. (2009a), "Assessment of the separation necessary to prevent seismic pounding between linear structural systems", Probabilist. Eng. Mech., 24(2), 210-230. https://doi.org/10.1016/j.probengmech.2008.06.002.
  17. Lopez-Garcia, D. and Soong, T.T. (2009b), "Evaluation of current criteria in predicting the separation necessary to prevent seismic pounding between nonlinear hysteretic structural systems", Eng. Struct., 31(5), 1217-1229. https://doi.org/10.1016/j.engstruct.2009.01.016.
  18. Penzien, J. (1997), "Evaluation of building separation distance required to prevent pounding during strong earthquakes", Earthq. Eng. Struct., 26(8), 849-858. https://doi.org/10.1080/13632469.2014.984370.
  19. Ren, Y.F., Wen, R.Z., Yamanaka, H. and Kashima, T. (2013), "Site effects by generalized inversion technique using strong motion recordings of the 2008 Wenchuan earthquake", Earthq. Eng. Eng. Vib., 12(2), 165-184. https://doi.org/10.1007/s11803-013-0160-6.
  20. SEAOC (2017), Structural Engineers Association of California, https://www.seaoc.org/news/379271/Summary-of-theupdatesto-ASCESEI-41-17.htm
  21. Wang, S.S. and Hong, H.P. (2006), "Quantiles of critical separation distance for non-stationary seismic excitations", Eng. Struct., 28(2), 985-991. https://doi.org/10.1016/j.engstruct.2005.11.003.
  22. Wen, Y.K. (1980), "Equivalent linearization for hysteretic systems under random excitation", J. Appl. Mec., 47(1), 150-154. https://doi.org/10.1115/1.3153594.