Influence of nonlinear SSI on the seismic response of low-to-mid-rise steel moment resisting frame buildings

Document Type : Original Article

Authors

1 Civil Eng dept., University of Kashan, Iran

2 Civil Eng department, University of Kashan

Abstract

The nonlinear behavior of a soil–foundation interface due to mobilization of the ultimate capacity and the consequent energy dissipation may be utilized to alter seismic demands of a structure. However, current design practice does not account for the nonlinear behavior of soil–foundation interface primarily due to the absence of reliable nonlinear soil–structure interaction (SSI) modeling techniques. The objective of this study is to simulate the performance of multi-story building-foundation systems through a Winkler-based approach. Opensees finite element framework is employed for simulation. Four typical 4, 8, 12 and 16-story steel moment resisting frame (MRF) buildings on three hypothetically soft, medium and hard soil sites with shear wave velocities less than 600m/s subjected to actual ground motion records of varied hazard levels are modeled with and without SSI. It is observed that the performance level of models supported by flexible foundation, particularly in an intense earthquake event, may alter significantly in comparison to fixed-base structures. Moreover, for MRFs on soft soil, the nonlinear foundation is found to have a significant effect on the force and displacement demands. This is indicating the necessity for consideration of flexible foundation behavior in the modern design codes in order to accomplish an economic yet safe structural design.

Keywords

Main Subjects

References

[1] Hokmabadi A.S., Fatahi B. and Samali B. (2014), “Assessment of Soil-Pile-Structure Interaction Influencing Seismic Response of Mid-rise Buildings Sitting on Floating Pile Foundations”, Computers & Structures, 55, pp. 172–186.
 
[2] Kim Y. and Roesset J. (2004), “Effect of Nonlinear Soil Behavior on Inelastic Seismic Response of a Structure”, International Journal of Geomechanics, 4(2), pp. 104-114.
 
[3] Wolf J.P. (2003), “The Scaled Boundary Finite Element Method”, Chichester: John Wiley & Sons Ltd.
 
[4] Standard No. 2800. “Iranian Code of Practice for Seismic Resistance Design of Buildings”, 4th edition, Ministry of Road, Housing and Urban Development, Tehran, Iran (2014).
 
[5] Mylonakis G., Syngros C., Gazetas G. and Tazoh T. (2006), “The Role of Soil in the Collapse of 18 Piers of Hanshin Expressway in the Kobe Earthquake”, Earthquake Engineering and Structural Dynamics; 35, pp. 547–575.
 
[6] ASCE 41 (2013), “Seismic Rehabilitation of Existing Buildings, ASCE/SEI 41”, American Society of Civil Engineers/Structural Engineering Institute, Reston, VA, USA.  
 
[7] Ciampoli M. and Pinto P.E. (1995), “Effects of Soil–Structure Interaction on Inelastic Seismic Response of Bridge Piers”, Journal of Structural Engineering; 121(5), pp. 806–814.
 
[8] Veletsos A.S. and Vebric B. (1974), “Dynamics of Elastic and Yielding Structure–Foundation Systems”, Proceedings of the Fifth World Conference on Earthquake Engineering, Rome, Italy.
 
[9] Gazetas G. and Mylonakis G. (2001), “Soil–Structure Interaction Effects on Elastic and Inelastic Structures”, Proceedings of the Fourth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics and Symposium, San Diego, CA, USA.

[10] Miranda E. and Bertero V. (1994), “Evaluation of Strength Reduction Factors of Earthquake-Resistant Design”, Earthquake Spectra”; 10(2), pp. 57–379.

[11] Zhang J. and Tang Y. (2008), “Evaluating Soil–Structure Interaction Effects Using Dimensional Analysis”. The 14th World Conference on Earthquake Engineering, Beijing, China.
 
[12] Aviles J. and Perez-Rocha L.E. (2003), “Soil–Structure Interaction in Yielding Systems”, Earthquake Engineering and Structural Dynamics; 32, pp. 1749–1771.

[13] Rodriguez M. and Montes R. (2000), “Seismic Response and Damage Analysis of Buildings Supported on Flexible Soils”, Earthquake Engineering and Structural Dynamics; 29, pp. 647–665.
 
[14] Tahghighi H. and Shabkhan M. (2014) “Nonlinear Seismic Analysis of Pile Groups in Layered Soils due to Kinematic Interaction Effects,” Bulletin of Earthquake Science and Engineering, 2 (3), pp. 51-62 (In Persian).
 
[15] Harden C.W., Hutchinson T.C., Martin G.R. and Kutter B.L. (2005), “Numerical Modeling of the Nonlinear Cyclic Response of Shallow Foundations”, Report No. PEER-2005/04, Pacific Earthquake Engineering Research center, University of California, Berkeley, CA, USA.
 
[16] Harden C.W. and Hutchinson T.C. (2009), “Beam-on-Nonlinear-Winkler-Foundation Modeling of Shallow Rocking-Dominated Footings”, Earthquake Spectra, 25(2), pp. 277-300.
 
[17] Gajan S., Raychowdhury P., Hutchinson T.C., Kutter B.L. and Stewart J.P. (2010), “Application and Validation of Practical Tools for Nonlinear Soil-Foundation Interaction Analysis”, Earthquake Spectra, 26(1), pp. 111–129.
 
[18] Tehran Geotechnic Consulting Eng. “Geotechnical investigations and foundation design report of Kooh-e-Noor commercial-residential complex”, Final report, Shahr-e-Kord, Iran (2013a).
 
[19] Tehran Geotechnic Consulting Eng. “Geotechnical investigations and foundation design report of Darya-ye-Noor commercial-residential complex”, Final report, Shahr-e-Kord, Iran (2013b).
 
[20] Iranian National Building Code (part 6). “Design load for buildings”, Ministry of Road, Housing and Urban Development, Tehran (2013).
 
[21] Iranian National Building Code (part 10). “Steel structure design”, Ministry of Road, Housing and Urban Development, Tehran, Iran (2013).
 
[22] Tahghighi H. and Rabiee M. (2017) “Influence of foundation flexibility on the seismic response of low-to-mid-rise moment resisting frame buildings”, International Journal of Science and Technology, SCIENTIA IRANICA A, 24(3), pp. 979-992.  
 
[23] OpenSees (2015), “Open System for Earthquake Engineering Simulation”, Pacific earthquake engineering research center PEER Richmond, CA, USA, http://opensees.berkeley.edu.
 
[24] Kostic S. and Filippou FC. (2012) "Section Discretization of Fiber Beam-Column Elements for Cyclic Inelastic Response", Journal of Structural Engineering, 138(5), pp. 592-601.
[25] Raychowdhury P. (2008), “Nonlinear Winkler-Based Shallow Foundation Model for Performance Assessment of Seismically Loaded Structures”, Ph.D. thesis, University of California, San Diego, CA, USA.
 
[26] Gazetas G. (1991), “Formulas and Charts for Impedances of Surface and Embedded Foundations”, J Geotech Eng, ASCE; 117, pp. 1363–81.
 
[27] FEMA 440 (2005), “Improvement of Nonlinear Static Seismic Analysis Procedures”, Prepared by the American Society of Civil Engineers for the Federal Emergency Management Agency, Washington DC, USA.
 
[28] ASCE 41 (2006), “Seismic Rehabilitation of Existing Buildings”, ASCE/SEI 41, American Society of Civil Engineers/Structural Engineering Institute, Reston, VA, USA.
 
[29] PEER (2015), “PEER Strong Motion Database”, http://peer.berkeley.edu/ Accessed 10 Jan 2015.
 
[30] Tahghighi H. (2012) “Simulation of strong ground motion using the stochastic method: Application and validation for near-fault region,” Journal of Earthquake Engineering, 16, pp. 1230-1247.
[31] Masaeli H., Khoshnoudian F. and Ziaei R. (2015) "Rocking soil-structure systems subjected to near-fault pulses", Journal of Earthquake Engineering, 19(3), pp. 461-479.
[32] FEMA 302 (1997), “NEHRP Recommended Provisions for Seismic Regulation for New Building and Other Structures”, Prepared by the Building Seismic Safety Council for the Federal Emergency Management Agency, Washington DC, USA.
 
[33] FEMA 356 (2000), “Pre Standard and Commentary for the Seismic Rehabilitation of Buildings”, Prepared by the American Society of Civil Engineers for the Federal Emergency Management Agency, Washington DC, USA.
 
[34] ASCE 7 (2010), "Minimum Design Loads for Buildings and Other Structures", ASCE/SEI 7-10. American Society of Civil Engineers/Structural Engineering Institute, Reston, VA, USA.
 
[35] NEHRP (2009), “Recommended Seismic Provisions for New Buildings and Other Structures”, FEMA P-750 Prepared by the Building Seismic Safety Council for the Federal Emergency Management Agency, Washington DC, USA.
 
[36] Tahghighi H. and Rabiee M. (2015) “Nonlinear soil-structure interaction effects on building frames: A discussion on the seismic codes”, Journal of Seismology and Earthquake Engineering, 17(1), pp. 219-229.

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History

  • Receive Date: 28 July 2018
  • Revise Date: 10 October 2018
  • Accept Date: 06 January 2019

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