Effect of Foundation Flexibility on the Seismic Performance of a High-Rise Structure under Far-Field and Near-Field Earthquakes

Document Type : Original Article


Faculty of Civil and Surveying Engineering, Graduate University of Advanced Technology, Kerman, Iran


In this study, the seismic performance of a 20-storey steel structure with a mat foundation located on layered soil is investigated under an array of strong ground excitations, which includes 6 far-fault and 6 near-fault earthquakes. Eight different modes for soil layering have been considered in the numerical simulation. FLAC 2D nonlinear platform has been used to model the near-realistic behavior. To this end, hundred lines of codes and sub-routines have been developed in this platform to perform the analysis. The results of the analyzes include the absolute displacement of the floors, the ratio of the relative displacement of the floors, the shear force, the axial force, and the bending moment of the columns. It was concluded that for a 20-story structure on a mat foundation under both far-field and near-field earthquakes, the most reliable type of soil is the dense sandy soil and the most critical case is the soft clay soil. It was also observed that the near-field strong ground motions have imposed more critical structural responses compared to far-field records.


  1. 1.     Jin, L. and Liang, J.J.B.o.E.E., "The effect of foundation flexibility variation on system response of dynamic soil–structure interaction: An analytical solution",  Vol. 16, No. 1, (2018), 113-127. https://doi.org/10.1007/s10518-017-0212-9

    2.     Ponbunyanon, P., Limkatanyu, S., Prachasaree, W. and Damrongwiriyanupap, N., "Seismic assessments of 3-storey rc frame buildings including effects of pile-foundation flexibility".

    3.     Wulandari, P.S. and Tjandra, D.J.P.E., "Analysis of piled raft foundation on soft soil using plaxis 2d",  Vol. 125, (2015), 363-367. https://doi.org/10.1016/j.proeng.2015.11.083

    4.     Johnson, R.T., Varghese, R.M. and Joseph, J., Parametric study on the behavior of combined pile raft foundation founded on multi-layered soil using plaxis 3d, in Soil dynamics and earthquake geotechnical engineering. 2019, Springer.217-225. https://doi.org/10.1007/978-981-13-0562-7_24

    5.     Tahghighi, H. and Rabiee, M.J.S.I., "Influence of foundation flexibility on the seismic response of low-to-mid-rise moment-resisting frame buildings",  Vol. 24, No. 3, (2017), 979-992. https://doi.org/10.24200/SCI.2017.4081

    6.     Qi, S., Knappett, J.J.S.D. and Engineering, E., "Influence of foundation type on seismic response of low-rise structures in liquefiable soil",  Vol. 128, (2020), 105786. https://doi.org/10.1016/j.soildyn.2019.105786

    7.     Abd-Elhamed, A., Mahmoud, S.J.E.J.o.E. and Engineering, C., "Seismic response evaluation of structures on improved liquefiable soil",  (2019), 1-23. https://doi.org/10.1080/19648189.2019.1595738

    8.     Olarte, J., Dashti, S., Liel, A.B.J.E.E. and Dynamics, S., "Can ground densification improve seismic performance of the soil‐foundation‐structure system on liquefiable soils?",  Vol. 47, No. 5, (2018), 1193-1211. https://doi.org/10.1002/eqe.3012

    9.     Matinmanesh, H. and Asheghabadi, M.S.J.P.E., "Seismic analysis on soil-structure interaction of buildings over sandy soil",  Vol. 14, (2011), 1737-1743. https://doi.org/10.1016/j.proeng.2011.07.218

    10.   Ismail, A.J.J.o.M. and Engineering, C., "Effect of soil flexibility on seismic performance of 3-d frames",  Vol. 11, No. 4, (2014), 135-143. https://doi.org/10.9790/1684-1142135143

    11.   Anand, N., Mightraj, C. and Prince Arulraj, G., "Seismic behaviour of rcc shear wall under different soil conditions", in Indian geotechnical conference. Vol., No. Issue, (2010), 119-120.

    12.   Karthika, A.P., Gayathri, V.J.I.R.J.o.E. and Technology, "Literature review on effect of soil structure interaction on dynamic behaviour of buildings",  Vol. 5, No. 04, (2018), 2522-2525.





    13.   Pitilakis, D. and Karatzetzou, A., "Performance-based design of soil–foundation–structure systems", in Proceedings of the 15th world conference on earthquake engineering, Lisbon, Portugal. Vol., No. Issue, (2012).

    14.   Hosseinzadeh, N., Davoodi, M. and Roknabadi, E.R., "Shake table study of soil structure interaction effects in surface and embedded foundations", in 15th World Conference on Earthquake Engineering (15WCEE). Vol., No. Issue, (2012).

    15.   Elwi, M., Muhammed, B. and Alhussiny, N., "Evaluation of soil-structure interaction for structures subjected to earthquake loading with different types of foundation", in MATEC Web of Conferences, EDP Sciences. Vol. 162, (2018), 04026. https://doi.org/10.1051/matecconf/201816204026

    16.   Priyanka, R.J., Anand, N., Justin, D.S.J.I.J.o.E.T. and Engineering, A., "Studies on soil structure interaction of multi storeyed buildings with rigid and flexible foundation",  Vol. 2, No. 12, (2012), 111-118.

    17.   Kuladeepu, M., Narayana, G. and Narendra, B.J.I.J.R.E.T., "Soil structure interaction effect on dynamic behavior of 3d building frames with raft footing",  Vol., No., (2015).

    18.   Zhu, G., Lee, V.W.J.S.D. and Engineering, E., "Three-dimensional (3d) soil structure interaction with normal-plane p-wave incidence: Rigid foundation",  Vol. 105, (2018), 11-21. https://doi.org/10.1016/j.soildyn.2017.11.016

    19.   Khazaei, J., Amiri, A., Khalilpour, M.J.E. and Structures, "Seismic evaluation of soil-foundation-structure interaction: Direct and cone model",  Vol. 12, No. 2, (2017), 251-262. http://dx.doi.org/10.12989/eas.2017.12.2.251

    20.   Raheem, S.E.A., Ahmed, M.M. and Alazrak, T.M.J.I.J.o.A.S.E., "Evaluation of soil–foundation–structure interaction effects on seismic response demands of multi-story mrf buildings on raft foundations",  Vol. 7, No. 1, (2015), 11-30. https://doi.org/10.1007/s40091-014-0078-x

    21.   Itasca, F.J.I.C.G.I., Minneapolis, Minn, "Fast lagrangian analysis of continua",  (2000).

    1. Ohtori, Y., Christenson, R., Spencer Jr, B. and Dyke, S.J.J.o.e.m., "Benchmark control problems for seismically excited nonlinear buildings",  Vol. 130, No. 4, (2004), 366-385. https://doi.org/10.1061/(ASCE)0733-9399(2004)130:4(366)

    23.   Kuhlemeyer, R.L., Lysmer, J.J.J.o.t.S.M. and Division, F., "Finite element method accuracy for wave propagation problems",  Vol. 99, No. 5, (1973), 421-427. https://doi.org/10.1061/JSFEAQ.0001885

    24.   Eslami, A.J.B. and Housing Research Center, B.N.B.-., Tehran, Iran, "Foundation engineering design and construction",  (2006).

    25.   ROY, N., PAULTRE, P. and PROULX, J., "A bridge ductility study for seismic assessment and rehabilitation", in 13th World Conference on Earthquake Engineering, Vancouver, Canada. (2004).

    26.   Council, A.T. and Agency, U.S.F.E.M., "Quantification of building seismic performance factors, US Department of Homeland Security, FEMA,  (2009).

    27.   Das, B.M. and Sivakugan, N., "Fundamentals of geotechnical engineering, Cengage Learning,  (2016).

    28.   Jamtveit, B., Moulas, E., Andersen, T.B., Austrheim, H., Corfu, F., Petley-Ragan, A. and Schmalholz, S.M.J.S.r., "High pressure metamorphism caused by fluid induced weakening of deep continental crust",  Vol. 8, No. 1, (2018), 1-8. https://doi.org/10.1038/s41598-018-35200-1