Abstract
A series of 1 g model tests were conducted to investigate the accumulated vertical pullout displacement and unloading stiffness of bucket foundations embedded in saturated sands. The foundations were subjected to vertical pullout cyclic loading with different load amplitudes. The cyclic load was applied up to 104 cycles. Test results showed that the accumulated vertical pullout displacement increased with the increase in the number of load cycles and cyclic load amplitudes. The unloading stiffness of the bucket foundations decreased with the increase in load amplitude and load cycles.
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Acknowledgement
This research was supported by the project entitled “Development of performance-based seismic design technologies for advancement in design codes for port structures,” funded by the Ministry of Oceans and Fisheries of Korea.
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Chi Hung, L., Lee, S., Kim, SR., Tran, X.N., Nguyen, T.D., Lee, JH. (2019). Investigation of Vertical Pullout Cyclic Response of Bucket Foundations in Saturated Loose Sand. In: Randolph, M., Doan, D., Tang, A., Bui, M., Dinh, V. (eds) Proceedings of the 1st Vietnam Symposium on Advances in Offshore Engineering. VSOE 2018. Lecture Notes in Civil Engineering , vol 18. Springer, Singapore. https://doi.org/10.1007/978-981-13-2306-5_53
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DOI: https://doi.org/10.1007/978-981-13-2306-5_53
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