Abstract:One of the main reasons for the collapse of bridges during an earthquake is the liquefaction of soil. In addition to the liquefaction of soil, the formation of plastic hinges on the pile can accelerate the failure of piles. Past earthquakes have resulted in the failure of piles due to the formation of plastic hinges at unexpected locations of the pile. Therefore, to predict the possible locations of plastic hinges in a pile, it is important to study the nonlinear behavior of the pile. Static pushover analysis is a method that can be conducted on piles to obtain the nonlinear behavior of a pile beyond its elastic stage. Additionally, considering soil-structure interaction during the analysis helps in obtaining a realistic response of the pile. In this research work, static pushover analysis has been conducted on single piles embedded in liquefiable and non-liquefiable soil using OpenSees PL. The advantage of conducting pushover analysis in OpenSees PL is that it enables the incorporation of soil-structure interaction, which helps to understand the influence of different types of soil on the pile subjected to incremental loading. From the results of the pushover analysis, the difference in the response of piles in liquefiable and non-liquefiable soil is studied. A pile embedded in liquefiable soil requires a lower pushover load for a specific displacement than a pile embedded in non-liquefiable soil. The bending moment developed in a pile is influenced by the type of surrounding soil. The yield moment of a pile surrounded by liquefied soil is lower than a pile in non-liquefied soil.

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Keywords:Numerical modeling; Pile foundation; Pushover analysis; Yield moment

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Cite This Article:Bhattacharjee A and Borthakur B. Pushover Analysis of Pile Embedded In Liquefiable and Non-Liquefiable Soil. Advanced Journal of Engineering. 2023,2:7-16. https://doi.org/10.55571/aje.2023015

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