Seismic Response of Base-isolated Dual-system Reinforced Concrete Buildings at a Near-fault Site

Document Type : Research Article

Authors

1 Assistant Professor Department of Civil Engineering Azarbaijan Shahid Madani University

2 Azarbaijan Shahid Madani University

Abstract

In high-rise reinforced concrete buildings, using base-isolating systems can increase the response of the structure. To overcome this problem, it is suggested to increase the stiffness of the building by utilizing lateral load-bearing systems such as shear walls. In the present study, the seismic response of fixed-base and lead-rubber bearing isolated dual-system reinforced concrete buildings has been compared using nonlinear time history analysis procedure according to the 2800 V4 standard and ASCE/SEI7-16 code provisions. For this purpose, 10, 15, and 20-story reinforced concrete buildings, in a similar and regular plan, with special moment frame and shear wall dual systems have been selected as a case study. A 20-story building has been considered a tall building in this study. Results show that the response of the base-isolated structures including the mean, median, and 16% and 84% percentiles of drift ratio, floor acceleration, and base shear has a significant decrease compared to the fixed-base buildings according to the above-mentioned code provisions. Results indicate that base-isolated buildings with respect to fixe-based buildings, based on the ASCE / SEI 7-16 code compared with the 2800 V4 standard, maximum drift in the structures has a 23% more decrease and mean acceleration and base shear have an 11% more decrease. The results obtained in this study can be the basis for the development of the 2800 standard provisions to investigate the seismic response of base-isolated reinforced concrete structures at a near-fault site.

Keywords

Main Subjects

References

[1] F. Naeim, and J.M. Kelly, Design of Seismic Isolated Structures: From Theory to Practice, John Wiley & Sons: New York, NY, USA, (1999).
[2] Guideline for Design and Practice of Base Isolation Systems in Buildings, No. 523, Vice Presidency for Strategic Planning and Supervision, Islamic Republic of Iran, (2010) (in Persian).
[3] S. Okamoto, N. Kani, M. Higashino, N. Koshika, M. Kimizuka, M. Midorikawa and M. Iiba, Recent Developments in Seismically Isolated Buildings in Japan, Earthquake Engineering and Engineering Vibration, 1(2) (2002) 213-225.
[4] R.G. Tyler, and W.H. Robinson, High-strain tests on lead-rubber bearings for earthquake loadings, Bulletin of New Zealand National Society for Earthquake Engineering, 17(2) (1984) 90-105.
[5] M.A. Erdik, and C. Yenidogan, Comparative evaluation of design provisions for seismically isolated buildings, Soil Dynamics and Earthquake Engineering, 90 (2016) 265-286.
[6] A.B.M. Saifal, R.R. Husain, M. Jameel, and M.Z. Jumaat, Non-linear time domain analysis of base isolated multi-storey building under site specific bi-directional seismic loading, Automation in Construction, 22 (2012) 554-566.
[7] M.R. Reddy, N. Srujana, and N. Lingeshwaran, Effect of base isolation in multistoried reinforced concrete building, International Journal of Civil Engineering and Technology, 8(3) (2017) 878-887.
[8] D. Cancellara, and F. De Angelis, Assessment and dynamic nonlinear analysis of different base isolation systems for a multi-storey RC building irregular in plan, Computers and Structures, 180 (2016) 74-88.
[9] R.S. Jangid, and J.M. Kelly, Base isolation for near-fault motions, Earthquake Engineering and Structural Dynamics, 30(5) (2001) 691-707.
[10] J.F. Hall, T.H. Heaton, M.W. Halling, and D.J. Wald, Near-source ground motion and its effects on flexible buildings, Earthquake Spectra, 11(4) (1995) 569-605.
[11] R.S. Jangid, Optimum lead-rubber isolation bearings for near-fault motions, Engineering Structures, 29(10) (2007) 2503-2513.
[12] D.R. Pant, and A.C. Wijeyewickrema, Performance of base-isolated reinforced concrete buildings under bidirectional seismic excitation considering pounding with retaining walls including friction effects, Earthquake Engineering and Structural Dynamics, 43(10) (2014) 1521-1541.
[13] S. Haseli, and M. Poursha, Investigation of the seismic responses of base isolated buildings under the influence of near field ground motions, Amirkabir Journal of Civil Engineering, 50(3) (2018) 579-596 (in Persian).
[14] M. Bhandari, S.D. Bharti, M.K. Shrimali, and T.K. Datta, The numerical study of base-isolated buildings under near-field and far-field earthquakes, Journal of Earthquake Engineering, 22(6) (2018) 989-1007.
[15] C.P. Providakis, Effect of LRB isolators and supplemental viscous dampers on seismic isolated buildings under near-fault excitations, Engineering structures, 30(5) (2008) 1187-1198.
[16] F. Mazza, and A. Vulcano, Effects of near‐fault ground motions on the nonlinear dynamic response of base‐isolated rc framed buildings, Earthquake Engineering and Structural Dynamics, 41(2) (2012) 211-232.
[17] S. Mahmoud, and S. Gutub, Earthquake induced pounding-involved response of base-isolated buildings incorporating soil flexibility, Advances in Structural Engineering, 16(12) (2013) 2043-2062.
[18] S. Chimamphant, and K. Kasai, Comparative response and performance of base-isolated and fixed-base Structures, Earthquake Engineering and Structural Dynamics, 45(1) (2016) 5-27.
[19] V. Calugaru, and M. Panagiotou, Seismic response of 20-story base-isolated and fixed-base reinforced concrete structural wall buildings at a near-fault site, Earthquake Engineering and Structural Dynamics, 43(6) (2014) 927-948.
[20] S. Bhagat, and A.C. Wijeyewickrema, Seismic response evaluation of base-isolated reinforced concrete buildings under bidirectional excitation, Earthquake Engineering and Engineering Vibration, 16(2) (2017) 365-382.
[21] N. Güneş, and Z.Ç., Ulucan, Nonlinear dynamic response of a tall building to near-fault pulse-like ground motions. Bulletin of Earthquake Engineering, 17(6) (2019) 2989-3013.
[22] H. Anajafi, K. Poursadr, M. Roohi, and E. Santini-Bell, Effectiveness of seismic isolation for long-period structures subject to far-field and near-field excitations, Frontiers in Built Environment (2020) https://doi.org/10.3389/fbuil.2020.00024
[23] ASCE/SEI 7-16, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, American Society of Civil Engineering, Washington, D. C, USA, (2016).
[24] NZSEE, Guideline for the Design of Seismic Isolation Systems for Buildings, New Zealand Society for Earthquake Engineering, (2019).
[25] P. Pan, D.A.N. Zamfirescu, M. Nakashima, N. Nakayasu, and H. Kashiwa, Base-isolation design practice in Japan: introduction to the post-Kobe approach, Journal of Earthquake Engineering, 9(01) (2005) 147-171.
[26] H.N. Li, and X.X. Wu, Limitations of height‐to‐width ratio for base‐isolated buildings under earthquake, The structural design of tall and special buildings, 15(3) (2006) 277-287.
[27] T. Komuro, Y. Nishikawa, Y. Kimura, and Y. Isshiki, Development and realization of base isolation system for high-rise buildings, Journal of Advanced Concrete Technology, 3(2) (2005) 233–239.
[28] R. Lagos, R. Boroschek, R. Retamales, M. Lafontaine, K. Friskel, and A. Kasalanati, Seismic isolation of the Nunoa Capital Building, the tallest base isolated building in the Americas, In Proceedings of the 16th World Conference on Earthquake Engineering, Santiago, (2017).
[29] P.M. Osgooei, M.J. Tait, and D. Konstantinidis, Seismic isolation of a shear wall structure using rectangular fiber-reinforced elastomeric isolators, Journal of Structural Engineering, 142(2) (2016) 04015116.
[30] W. Wang, A. Li, and X. Wang, Seismic performance of base-isolated precast concrete shear wall structure with AHW connections, Shock and Vibration, (2018) https://doi.org/10.1155/ 2018/963252
[31] N. Suwal, P. Warnitchai, and F. Nazam, Seismic base isolation of high-rise RC shear wall building using lead core rubber bearings, NZSEE 2020 Annual Conference, New Zealand, (2020).
[32] S. Bhagat, A.C. Wijeyewickrema, and N. Subedi, Influence of near-fault ground motions with fling-step and forward-directivity characteristics on seismic response of base-isolated buildings, Journal of Earthquake Engineering, 25(3) (2021) 455-474.
[33] F. Mazza, M. Mazza, and A. Vulcano, Base-isolation systems for the seismic retrofitting of r.c. framed buildings with soft-storey subjected to near-fault earthquakes, Soil Dynamics and Earthquake Engineering, 109 (2018) 209-221.
[34] BHRC, Iranian code of practice for seismic resistant design of buildings, Tehran: Building and Housing Research Centre, Standard No. 2800, (2014) (in Persian).
[35] INBC, Design Loads for Buildings. Tehran: Ministry of Housing and Urban Development, Iranian National Building Code, Part 6, (2013) (in Persian).
[36] ACI 318-14, Building Code Requirements for Structural Concrete and Commentary, American Concrete Institute, Washington, D. C, USA, (2014).
[37] ASCE/SEI 41-17, Seismic evaluation and retrofit of existing buildings, American Society of Civil Engineering, Washington, D. C, USA, (2017).
[38] D. Darwin, and D.A. Pecknold, Inelastic model for cyclic biaxial loading of reinforced concrete, University of Illinois Engineering Experiment Station, College of Engineering, University of Illinois at Urbana-Champaign, (1974).
[39] L. Xu, Y. Lin, and Y. Wu, Seismic response analysis of a first-story isolated reinforced concrete frame building with independent columns, Advances in Structural Engineering, 23(14) (2020) 3140-3152.
[40] M. Kikuchi, Y. Kitamura, S. Hayashi, Y. Kawashima, T. Sakaguchi, and C. Yamada, Mechanical characteristics of elastomeric seismic isolation bearings under tension, Journal of Structural and Construction Engineering (Japan), 524 (1999) 57-64.
[41] S. Yaghmaei‐Sabegh, S. Safari, and K.A. Ghayouri, Estimation of inelastic displacement ratio for base‐isolated structures, Earthquake Engineering and Structural Dynamics, 47(3) (2018) 634-659.
[42] S.K. Shahi, and J.W. Baker, An efficient algorithm to identify strong‐velocity pulses in multicomponent ground motions, Bulletin of the Seismological Society of America, 104(5) (2014) 2456-2466.
[43] Y. Cheng, and G.L. Bai, Basic characteristic parameters and influencing factors of long-period ground motion records, Journal of Vibroengineering, 19(7) (2017) 5191-5207.
[44] J.W. Baker, C.B. Haselton, N. Luco, J.P. Stewart, and R.B. Zimmerman, Updated ground motion spectral maching requirements in the 2015 NEHRP recommennded seismic provisions, 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand, (2015).
[45] UFC 3-310-01, Structural Load Data, Unified Facilities Criteria, Department of Defense, USA, (2005).
Amirkabir Journal of Civil Engineering
Volume 54, Issue 4
July 2022
Pages 1607-1630

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