Inelastic Displacement Ratios for Structures Considering Nonlinear Soil-Pile-Structure Interactions
Publication: Geo-Congress 2022
ABSTRACT
Nonlinear behavior of soil and pile is critical in seismic performance-based design of structures, while it is often neglected in seismic soil-pile-structure interaction (SPSI). To quantify the effects of soil-pile nonlinearity, a new nondimensional parameter called Pile Strength index, is proposed. This index determines the level of influence of soil-pile-structure interaction on the response of systems. The Pile Strength index is defined such that as it increases, piles tend to behave linearly. Whereas, small values of the index imply highly nonlinear piles, in which soil-pile-structure interaction is of paramount importance. As the focus of this paper is on the lateral behavior of pile foundations, a simplified nonlinear sway model is developed to evaluate the seismic response of structures on pile foundations. An extensive parametric study of the model is conducted to reveal the interplay of the proposed Pile Strength index and displacement ratios. For this purpose, a large set of nonlinear seismic time history analyses are carried out. The results are also compared to the displacement ratios proposed by ASCE 41-17. The comparison shows that in highly nonlinear soil-pile systems, inelastic displacement ratios are significantly larger than the recommended displacement ratios by the code.
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REFERENCES
ASCE. (2017). Seismic Evaluation and Retrofit of Existing Buildings. In ASCE/SEI 41-17, Reston, VA. https://doi.org/10.1061/9780784414859.
Badoni, D., and Makris, N. (1996). Nonlinear response of single piles under lateral inertial and seismic loads. Soil Dynamics and Earthquake Engineering, 15(1), 29–43. https://doi.org/10.1016/0267-7261(95)00027-5.
Behmanesh, I., and Khoshnudian, F. (2008). Effect of Soil-Structure-Interaction on Inelastic Displacement Ratios of Existing Structures. 1960, 1–9.
Boushehri, R., Ellison, K., Stanton, K., and Motamed, R. (2020). Uncertainties in Shear-Wave Velocity on Nonlinear Seismic Site Response Analysis Validated using Downhole Array Recordings. 17th World Conference on Earthquake Engineering, 17WCEE, September.
Dehghani, N. L., Fereshtehnejad, E., and Shafieezadeh, A. (2020). A Markovian approach to infrastructure life-cycle analysis: Modeling the interplay of hazard effects and recovery. Earthquake Engineering and Structural Dynamics, August, 1–20. https://doi.org/10.1002/eqe.3359.
Dolatshahi, K. M., Vafaie, A., Kildashti, K., and Hamidia, M. J. (2017). Seismic Assessment of Uplift Allowed Soil–structure Systems with Deteriorating Behavior. 16th World Conference on Earthquake Engineering, 1967(Abstract ID), 1–9.
FEMA. (2005). Recommended provisions for improvement of nonlinear static seismic analysis procedures, FEMA 440, Washington D.C. In FEMA 440, Washington D.C. (Issue June).
Ghobarah, A. (2001). Performance-based design in earthquake engineering : state of development. Design, 23, 878–884.
Guin, J., and Banerjee, P. K. (1998). Coupled Soil-Pile-Structure Interaction Analysis under Seismic Excitation. Journal of Structural Engineering, 124(4), 434. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:4(434).
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 and Geotechnics, 55, 172–186. https://doi.org/10.1016/j.compgeo.2013.08.011.
Jeddi, A. B., Shafieezadeh, A., Hur, J., Kim, M., and Ha, J. (2020). Fragility Assessment of Overhead Transmission Towers under Typhoon and Earthquake Multi-Hazard Events. Transactions of the Korean Nuclear Society, Autumn Meeting, 17–18.
Kildashti, K., Dolatshahi, K. M., and Mirghaderi, R. (2016). A case study on the soil–pile–structure interaction of a long span arched structure. Structure and Infrastructure Engineering, 2479(March), 1–20. https://doi.org/10.1080/15732479.2016.1153665.
Luo, C., Yang, X., Zhan, C., Jin, X., and Ding, Z. (2016). Nonlinear 3D finite element analysis of soil-pile-structure interaction system subjected to horizontal earthquake excitation. Soil Dynamics and Earthquake Engineering, 84, 145–156. https://doi.org/10.1016/j.soildyn.2016.02.005.
Maheshwari, B. K., Truman, K. Z., El Naggar, M. H., and Gould, P. L. (2004). Three-dimensional nonlinear analysis for seismic soil-pile-structure interaction. Soil Dynamics and Earthquake Engineering, 24(4), 343–356. https://doi.org/10.1016/j.soildyn.2004.01.001.
Moeini, M., Ghyabi, M., and Dolatshahi, M. K. (2017). Seismic Soil-Pile Interaction Considering Nonlinear Soil Column Behavior in Saturated and Dry Soil Conditions. International Journal of Geotechnical and Geological Engineering, 11, 188.
Taherzadeh, R., Clouteau, D., and Cottereau, R. (2009). Simple formulas for the dynamic stiffness of pile groups. Earthquake Engineering and Structural Dynamics, 38(15), 1665–1685. https://doi.org/10.1002/eqe.918.
Tombari, A., Dezi, F., and El Naggar, M. H. (2008). Soil-Pile-Structure Interaction Under Seismic Loads: Influence Of Ground Motion Intensity, Duration And Non Linearity. Iitk.Ac.In.
Veletsos, A., and Meek, J. (1974). Dynamic behaviour of building-foundation systems. Earthquake Engineering & Structural Dynamics, 3(January), 121–138.
Yingcai, H. (2002). Seismic response of tall building considering soil-pile-structure interaction. Earthquake Engineering and Engineering Vibration, 1(1), 57–64.
Zamanian, S., Rahimi, M., and Shafieezadeh, A. (2020). Resilience of Sewer Networks to Extreme Weather Hazards: Past Experiences and an Assessment Framework. 50–59. https://doi.org/10.1061/9780784483213.006.
Zogh, P., Motamed, R., and Ryan, K. (2021). Empirical evaluation of kinematic soil-structure interaction effects in structures with large footprints and embedment depths. Soil Dynamics and Earthquake Engineering, 149, 106893. https://doi.org/10.1016/J.SOILDYN.2021.106893.
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Geo-Congress 2022
Pages: 257 - 267
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Published online: Mar 17, 2022
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