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K.R. Huang, Y. Yuan, "Numerical Prediction of Centrifuge Test for Liquefiable Sand Subjected to Strong Earthquake", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 3.2, 2023, doi:10.4203/ccc.6.3.2

Keywords: liquefaction, numerical prediction, constitutive model, centrifuge test, calibration, strong earthquake.

Abstract

Earthquake induced soil liquefaction lead to damage of underground structures. Consequently, accurate and reliable evaluation of liquefaction triggering and consequence is critical. Nevertheless, Numerical prediction of dynamic response for saturated sand subjected to strong earthquake remains challenging due to intensive nonlinearity. In this paper, the PDMY02 constitutive model was calibrated through laboratory element tests. The number of cycles to reach liquefaction were appropriately captured for Fujian intermediate sand. Subsequently, the calibrated model was used to numerically predict the seismic response of liquefiable loose and medium dense sand centrifuge tests in OpenSees. Overall, the dynamic properties of sand liquefaction were reasonably reflected by numerical blind prediction. After performing the scheduled centrifuge tests, the accuracy and limitation of numerical blind prediction can be evaluated.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 6 PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Ivanyi, J. Kruis and B.H.V. Topping Paper 3.2 Numerical Prediction of Centrifuge Test for Liquefiable Sand Subjected to Strong Earthquake K.R. Huang and Y. Yuan College of Civil Engineering, Tongji University, Shanghai, China doi:10.4203/ccc.6.3.2 Full Bibliographic Reference for this paper K.R. Huang, Y. Yuan, "Numerical Prediction of Centrifuge Test for Liquefiable Sand Subjected to Strong Earthquake", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 3.2, 2023, doi:10.4203/ccc.6.3.2 Keywords: liquefaction, numerical prediction, constitutive model, centrifuge test, calibration, strong earthquake. Abstract Earthquake induced soil liquefaction lead to damage of underground structures. Consequently, accurate and reliable evaluation of liquefaction triggering and consequence is critical. Nevertheless, Numerical prediction of dynamic response for saturated sand subjected to strong earthquake remains challenging due to intensive nonlinearity. In this paper, the PDMY02 constitutive model was calibrated through laboratory element tests. The number of cycles to reach liquefaction were appropriately captured for Fujian intermediate sand. Subsequently, the calibrated model was used to numerically predict the seismic response of liquefiable loose and medium dense sand centrifuge tests in OpenSees. Overall, the dynamic properties of sand liquefaction were reasonably reflected by numerical blind prediction. After performing the scheduled centrifuge tests, the accuracy and limitation of numerical blind prediction can be evaluated. download the full-text of this paper (PDF, 10 pages, 829 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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