Abstract
Dealing with soft and loose soils is always a challenge to the practicing Civil Engineers. Foundations to support heavy loads on weak deposits in high seismic zones attracts more attention in design of foundations of structures. Seismic wave propagation and its impact on foundation elements induces additional bending moments and shear forces. This paper deals with analysis and design of foundations adopted for a 41 m diameter storage tank executed in the East Coast of India. The efficacy of lateral pile capacity has been assessed using PLAXIS 3D dynamic module. The performance of foundation system under earthquake loading was extensively studied and covered in this paper. A full geotechnical seismic site response analysis was conducted with a full mesh of soil layers and piles. Appropriate site-specific seismic acceleration history with time was imposed on the bedrock. Sloshing forces for both full and empty tank conditions were considered in the analysis. The 3D FEM seismic analysis of the pile movement and forces during and after earthquake were checked for structural adequacy of the piles against the M–N envelope.
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References
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Acknowledgements
The authors acknowledge with gratitude to Keller India management for their continuous support and encouragement in finalization of this paper. Appreciations are due to other colleagues who have helped the authors in compilation of this paper. Thanks also due to Keller India site management for providing execution and monitoring data. The authors wish to thank Dr Shen Rui Fu, Geotechnical Expert, Singapore for his valuable guidance and suggestions during this study.
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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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Annam, M.K., P. R. Sastry (2022). Dynamic Analysis and Design of Foundations for Liquid Storage Tanks. In: Sitharam, T.G., Kolathayar, S., Jakka, R. (eds) Earthquakes and Structures. Lecture Notes in Civil Engineering, vol 188. Springer, Singapore. https://doi.org/10.1007/978-981-16-5673-6_33
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DOI: https://doi.org/10.1007/978-981-16-5673-6_33
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