An Experimental and Analytical Study on the Seismic Performance of Piers with Different Foundation Bottom Widths

Authors

  • T. Nagao Research Center for Urban Safety and Security, Kobe University, Japan
  • Y. Kurachi Technical Division, Oriental Shiraishi Corporation, Japan
Volume: 12 | Issue: 5 | Pages: 9142-9148 | October 2022 | https://doi.org/10.48084/etasr.5088

Abstract

Piers can be severely damaged by earthquakes. When an action of a massive earthquake is assumed, the seismic performance of the pier can be improved by widening the foundation width. A previous horizontal loading study indicated that extending only the Foundation Bottom (FB) width, rather than the complete foundation, can boost seismic resilience while suppressing the increase in building cost. However, the research dealt with only two types of FB width, i.e. normal and widened, and the data for sufficiently assessing the inclination angle of the pier with loading were not obtained. In this study, to evaluate the seismic performance of piers with different FB widths in more detail, horizontal loading tests on piers with ordinary columnar foundations and two types of piers with widened FB were conducted, and the seismic resistance of the three pier types were compared. It was shown that horizontal displacement and inclination angle of the pier can be reduced by widening the FB. Furthermore, finite element analysis was carried out to reproduce the experimental results. The analysis results showed good agreement with the experimental results in terms of pier horizontal displacement and inclination angle.

Keywords:

pier, foundation, seismic performance, finite element analysis

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References

S. Werner, N. McCullough, W. Bruin, A. Augustine, G. Rix, B. Crowder, and J. Tomblin, "Seismic Performance of Port de Port-Au-Prince during the Haiti Earthquake and Post-Earthquake Restoration of Cargo Throughput", Earthqake Spectra, Vol. 27, No. S1, pp. 387–410, Oct. 2011. DOI: https://doi.org/10.1193/1.3638716

T. Sugano, A. Nozu, E. Kohama, K. Shimosako, and Y. Kikuchi, "Damage to coastal structures", Soils and Foundations, Vol. 54, No.4, pp. 883–901, Aug. 2014. DOI: https://doi.org/10.1016/j.sandf.2014.06.018

Seismic Design of Piers and Wharves, ASCE/COPRI 61-14, American Society of Civil Engineers, 2014.

Technical standards and commentaries for port and harbour facilities in Japan, Ports and Harbours Bureau, Ministry of Land, Infrastructure, Transport and Tourism, National Institute for Land and Infrastructure Management, Port and Airport Research Institute, The Overseas Coastal Area Development Institute of Japan, 2009.

T. Nagao and D. Shibata, "Experimental Study of the Lateral Spreading Pressure Acting on a Pile Foundation During Earthquakes", Engineering, Technology & Applied Science Research Vol. 9, No. 6, pp. 5021-5028, Dec. 2019. DOI: https://doi.org/10.48084/etasr.3217

J. W. Yun and J. T. Han, "Dynamic behavior of pile‑supported wharves by slope failure during earthquake via centrifuge tests", International Journal of Geo-Engineering, vol. 12, Nov. 2021, Art. no. 33.

L. Su, J. Lu, A. Elgamal, and A. K. Arulmoli, " Seismic performance of a pile-supported wharf: Three-dimensional finite element simulation", Soil Dynamics and Earthquake Engineering, Vol. 95, pp. 167-179, Apr. 2017. DOI: https://doi.org/10.1016/j.soildyn.2017.01.009

T. Nagao and P. Lu, "A simplified reliability estimation method for pile-supported wharf on the residual displacement by earthquake", Soil Dynamics and Earthquake Engineering, vol. 129, Feb. 2020, Art. no. 105904. DOI: https://doi.org/10.1016/j.soildyn.2019.105904

T. Nagao, "Effect of Foundation Width on Subgrade Reaction Modulus", Engineering, Technology & Applied Science Research Vol. 10, No. 5, pp. 6253-6258, Oct. 2020. DOI: https://doi.org/10.48084/etasr.3668

T. Nagao and R. Tsutaba, "Evaluation Methods of Vertical Subgrade Reaction Modulus and Rotational Resistance Moment for Seismic Design of Embedded Foundations", Engineering, Technology & Applied Science Research Vol. 11, No. 4, pp. 7386-7392, Aug. 2021, https://doi.org/10.48084/etasr.4269. DOI: https://doi.org/10.48084/etasr.4269

T. Nagao, "An Experimental Study on the Way Bottom Widening of Pier Foundations Affects Seismic Resistance", Engineering, Technology & Applied Science Research Vol. 10, No. 3, pp. 5713-5718, Jun. 2020. DOI: https://doi.org/10.48084/etasr.3590

J. A. Knappett and S. P. G. Madabhushi, "Influence of axial load on lateral pile response in liquefiable soils, Part I: Physical modelling", Geotechnique, Vol. 59, No. 7, pp. 571-581, Sep. 2009. DOI: https://doi.org/10.1680/geot.8.009.3749

D. Lombardi and S. Bhattacharya, "Evaluation of seismic performance of pile-supported models in liquefiable soils", Earthquake Engineering & Structural Dynamics, vol. 45, pp. 1019–1038, Feb. 2016. DOI: https://doi.org/10.1002/eqe.2716

L. Su, L. Tang, X. Ling, C. Liu, and X. Zhang, " Pile response to liquefaction-induced lateral spreading: a shake-table investigation", Soil Dynamics and Earthquake Engineering, Vol. 82, pp. 196-204, Mar. 2016. DOI: https://doi.org/10.1016/j.soildyn.2015.12.013

G. Li and R. Motamed, "Finite element modeling of soil-pile response subjected to liquefactioninduced lateral spreading in a large-scale shake table experiment", Soil Dynamics and Earthquake Engineering, vol. 92, pp. 573-584, Jan. 2017. DOI: https://doi.org/10.1016/j.soildyn.2016.11.001

J. W. Yun and J. T. Han, " Dynamic behavior of pile‑supported wharves by slope failure during earthquake via centrifuge tests", International Journal of Geo-Engineering, vol. 12, no. 33, Nov. 2021. DOI: https://doi.org/10.1186/s40703-021-00161-4

S. Iai, "Similitude for Shaking Table Tests on Soil-Structure-Fluid Model in 1g Gravitational Field," Soils and Foundations, vol. 29, no. 1, pp. 105–118, Mar. 1989. DOI: https://doi.org/10.3208/sandf1972.29.105

S. Iaf, K. Ichii, H. Liu, and T. Morita, "Effective Stress Analyses of Port Structures," Soils and Foundations, vol. 38, pp. 97–114, Sep. 1998. DOI: https://doi.org/10.3208/sandf.38.Special_97

S. Iai, "Seismic Analysis and Performance of Retaining Structures," in Geotechnical Earthquake Engineering and Soil Dynamics III, Seattle, WA, USA, 1998, pp. 1020–1044.

I. Towhata and K. Ishihara, "Modelling soil behavior under principal stress axes rotation," in International conference on numerical methods in geomechanics, 1985, pp. 523–530.

B. O. Hardin and V. P. Drnevich, "Shear modulus and damping in soils: design equations and curves", Curves," Journal of the Soil Mechanics and Foundations Division, vol. 98, no. 7, pp. 667–692, Jul. 1972. DOI: https://doi.org/10.1061/JSFEAQ.0001760

T. Morita, S. Iai, H. Liu, K. Ichi, and Y. Sato, "Simplified Method to Determine Parameter of FLIP," PARI Technical Note 0869, Jun. 1997.

I. Suetomi and N. Yoshida, "Nonlinear Behavior of Surface Deposit During the 1995 Hyogoken-Nambu Earthquake," Soils and Foundations, vol. 38, no. Special, pp. 11–22, 1998. DOI: https://doi.org/10.3208/sandf.38.Special_11

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How to Cite

[1]
Nagao, T. and Kurachi, Y. 2022. An Experimental and Analytical Study on the Seismic Performance of Piers with Different Foundation Bottom Widths. Engineering, Technology & Applied Science Research. 12, 5 (Oct. 2022), 9142–9148. DOI:https://doi.org/10.48084/etasr.5088.

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