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Optimum stiffness values for impact element models to determine pounding forces between adjacent buildings

  • Jaradat, Yazan (School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney (UTS)) ;
  • Far, Harry (School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney (UTS))
  • 투고 : 2020.02.23
  • 심사 : 2020.10.25
  • 발행 : 2021.01.25

초록

Structural failure due to seismic pounding between two adjacent buildings is one of the major concerns in the context of structural damage. Pounding between adjacent structures is a commonly observed phenomenon during major earthquakes. When modelling the structural response, stiffness of impact spring elements is considered to be one of the most important parameters when the impact force during collision of adjacent buildings is calculated. Determining valid and realistic stiffness values is essential in numerical simulations of pounding forces between adjacent buildings in order to achieve reasonable results. Several impact model stiffness values have been presented by various researchers to simulate pounding forces between adjacent structures. These values were mathematically calculated or estimated. In this study, a linear spring impact element model is used to simulate the pounding forces between two adjacent structures. An experimental model reported in literature was adopted to investigate the effect of different impact element stiffness k on the force intensity and number of impacts simulated by Finite Element (FE) analysis. Several numerical analyses have been conducted using SAP2000 and the collected results were used for further mathematical evaluations. The results of this study concluded the major factors that may actualise the stiffness value for impact element models. The number of impacts and the maximum impact force were found to be the core concept for finding the optimal range of stiffness values. For the experimental model investigated, the range of optimal stiffness values has also been presented and discussed.

키워드

참고문헌

  1. Abdalla, J.A. and Hawileh, R.A. (2013), "Artificial neural network predictions of fatigue life of steel bars based on hysteretic energy", J. Comput. Civil Eng., 27(5), 489-496. https://doi.org/10.1061/(ASCE)CP.1943-5487.0000185.
  2. Abdel Raheem, S.E. (2006), "Seismic pounding between adjacent building structures", Electronic J. Struct. Eng., 6, 66-74, http://www.ejse.org/Archives/Fulltext/2006/200608. https://doi.org/10.56748/ejse.659
  3. Anagnostopoulos, S.A. (1988), "Pounding of buildings in series during earthquakes", Earthq. Eng. Struct. Dynam., 16(3), 443-456, https://doi.org/10.1002/eqe.2285.
  4. Anagnostopoulos, S.A. and Spiliopoulos, K.V. (1992), "An investigation of earthquake induced pounding between adjacent buildings", Earthq. Eng. Struct. Dynam., 21(4), 289-302, https://doi.org/ 10.1002/eqe.4290210402.
  5. Chau, K.T., Wei, X.X., Guo, X. and Shen, C.Y. (2003), "Experimental and theoretical simulations of seismic poundings between two adjacent structures", Earthq. Eng. Struct. Dynam., 32(4), https://doi.org/10.1002/eqe.231.
  6. Cole, G., Dhakal, R., Carr, A. and Bull, D. (2012), "3D modelling of building pounding including diaphragm flexibility", Proceedings of the Fifteenth World Conference on Earthquake Engineering, Lisbon, Portugal.
  7. Crozet, V., Politopoulos, I., Yang, M., Martinez, J. and Erlicher, S. (2017), "Influential structural parameters of pounding between buildings during earthquakes", Procedia Eng., 199, 1092-1097, https://doi.org/10.1016/j.proeng.2017.09.084.
  8. Far, H. (2019), "Advanced computation methods for soil structure interaction analysis of structures resting on soft soils", J. Geotechnical Eng., 13(4), 352-359, https://doi.org/10.1080/19386362.2017.1354510.
  9. Fatahi, B. and Tabatabaiefar, H.R. (2014) "Effects of soil plasticity on seismic performance of mid-rise building frames resting on soft soils", Adv. Struct. Eng., 17(10), 1387-1402, https://doi.org/10.1260/1369-4332.17.10.1387.
  10. Filiatrault, A., Wagner, P. and Cherry, S. (1995), "Analytical prediction of experimental building pounding", Earthq. Eng. Struct. Dynam., 24(8), 1131-1154, https://doi.org/10.1002/eqe.4290240807.
  11. Guo, A., Cui, L. and Li, H. (2012), "Impact stiffness of the contact-element models for the pounding analysis of highway bridges: experimental evaluation", J. Earthq. Eng., 16(8), 1132-60, https://doi.org/10.1080/13632469.2012.693243.
  12. Huang, L.J. and Syu, H.J. (2014), "Free vibration and modal analysis of tower crane using SAP2000 and ANSYS", Methods, 10, 12. https://doi.org/10.1027/1614-2241/a000063
  13. Huwaldt, J. and Steinhorst, S. (2015), "Plot Digitizer (Version 2.6. 8)".
  14. Jankowski, R. (2005), "Non‐linear viscoelastic modelling of earthquake‐induced structural pounding", Earthq. Eng. Struct. Dynam., 34(6), 595-611. https://doi.org/10.1002/eqe.434.
  15. Jankowski, R. (2006), "Pounding force response spectrum under earthquake excitation", Eng. Struct., 28(8), 1149-1161. https://doi.org/10.1007/s40999-017-0178-7.
  16. Jankowski, R. (2008), "Earthquake-induced pounding between equal height buildings with substantially different dynamic properties", Eng. Struct., 30(10), 2818-2829, https://doi.org/10.1080/13632469.2012.693243.
  17. Jankowski, R. and Mahmoud, S. (2016), "Linking of adjacent three-storey buildings for mitigation of structural pounding during earthquakes", Bullet. Earthq. Eng., 14(11), 3075-3097. https://doi.org/10.1007/s10518-016-9946-z.
  18. Jeng, V. and Tzeng, W.L. (2000), "Assessment of seismic pounding hazard for Taipei City", Eng. Struct., 22(5), 459-471, https:// Users/c3147606/Downloads/103820160707.pdf. https://doi.org/10.1016/S0141-0296(98)00123-0
  19. Kasai, K. and Maison, B.F. (1997), "Building pounding damage during the 1989 Loma Prieta earthquake", Eng. Struct., 19(3), 195-207. https://doi.org/10.1016/S0141-0296(96)00082-X.
  20. Khatiwada, S. and Chouw, N. (2014), "Limitations in simulation of building pounding in earthquakes", J. Protective Struct., 5(2), 23-50, https://doi.org/10.1260/2041-4196.5.2.123.
  21. Lankarani, H.M. and Nikravesh, P.E. (1992), "Hertz contact force model with permanent indentation in impact analysis of solids", 18th Annual ASME Design Automation Conference, 391-395.
  22. Lopez-Almansa, F. and Kharazian, A. (2018), "New formulation for estimating the damping parameter of the Kelvin-Voigt model for seismic pounding simulation", Eng. Struct., 175, 284-295. https://doi.org/10.1016/j.engstruct.2018.08.024.
  23. Mahmoud, S. and Jankowski, R. (2009), "Elastic and inelastic multi-storey buildings under earthquake excitation with the effect of pounding", J. Appl. Sci., 9(18), 3250-3262. https://doi.org/10.3923/jas.2009.3250.3262.
  24. Mahmoud, S. and Jankowski, R. (2011), "Modified linear viscoelastic model of earthquake-induced structural pounding", Transactions Civil Environ. Eng., 35, 51-62 https://ijstc.shirazu.ac.ir/article_656_8747b85d50471766549f47134b9b4e7f.pdf.
  25. Maison, B.F. and Kasai, K. (1992), "Dynamics of pounding when two buildings collide", Earthq. Eng. Struct. Dynam., 21(9), 771-86, https://doi.org/10.1007/s11803-015-0024-3.
  26. Mate, N., Bakre, S. and Jaiswal, O. (2012), "Comparative study of impact simulation models for linear elastic structures in seismic pounding", 15th World Conference on Earthquake Engineering.
  27. Muthukumar, S. and Desroches, R. (2004), "Evaluation of impact models for seismic pounding", Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, Canada.
  28. Naderpour, H., Barros, R.C., Khatami, S.M. and Jankowski, R. (2016), "Numerical Study on Pounding between Two Adjacent Buildings under Earthquake Excitation", Shock Vib., 2016, https://doi.org/10.1155/2016/1504783.
  29. Naserkhaki, S., Abdul Aziz, Fand Pourmohammad, H. (2012), "Parametric study on earthquake induced pounding between adjacent buildings" Struct. Eng. Mech., 43(4), 503-526, https://doi.org/10.12989/sem.2012.43.4.503
  30. Newmark, N.M. (1959), "A method of computation for structural dynamics", J. Eng. Mech. Division, 85(3), 67-94. https://doi.org/10.1061/JMCEA3.0000098
  31. Noman, M., Alam, B., Fahad, M., Shahzada, K. and Kamal, M. (2016), "Effects of pounding on adjacent buildings of varying heights during earthquake in Pakistan", Cogent Eng., 3(1), 1225-12878. https://doi.org/10.1080/23311916.2016.1225878.
  32. Polycarpou, P.C. and Komodromos, P. (2010), "Earthquakeinduced poundings of a seismically isolated building with adjacent structures", Eng. Struct., 32(7), 1937-1951, https://doi.org/10.1016/j.engstruct.2010.03.011.
  33. Rahimi, S. and Soltani, M. (2017), "Expected extreme value of pounding force between two adjacent buildings", Struct. Eng. Mech., 61(2) 183-192, https://doi.org/10.12989/sem.2017.61.2.183.
  34. Rahman, A.M., Carr, A.J. and Moss, P.J. (2000), "Structural pounding of adjacent multi-storey structures considering soil flexibility effects", 12th World Conference on Earthquake Engineering, Auckland, New Zealand. January-February.
  35. CSI (2000), "Integrated software for structural analysis and design", CSI Analysis Reference Manual, Computers and Structures Inc., California, New York, USA.
  36. Sheikh, M.N, Xiong, J. and Li, W.H. (2012), "Reduction of seismic pounding effects of base-isolated RC highway bridges using MR damper", Struct. Eng. Mech., 41(6), 791-803. https://doi.org/10.12989/sem.2012.41.6.791.
  37. Tabatabaiefar, H.R. and Clifton, T. (2016) "Significance of Considering Soil-Structure Interaction Effects on Seismic Design of Unbraced Building Frames Resting on Soft", Australian Geomechnics Journal, 51(1), 55-64.
  38. Tabatabaiefar, H.R., Fatahi, B. and Samali, B. (2012) "Finite difference modelling of soil-structure interaction for seismic design of moment resisting building frames", Australian Geomech. J., 47(3), 113-120.
  39. Van Mier, J. and Lenos, S. (1991), "Experimental analysis of the load-time histories of concrete to concrete impact", Coastal Eng., 15(1-2), 87-106, https://doi.org/10.1016/0378-3839(91)90043-G.
  40. Wada, A., Shinozaki, Y. and Nakamura, N. (1984), "Collapse of building with expansion joints through collision caused by earthquake motion", Proceedings of 8th WCEE, 4, 855-63.