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CENTRIFUGE MODELLING OF SEISMIC AND LATERAL BEHAVIORS OF SUCTION BUCKET FOUNDATIONS FOR OFFSHORE WIND TURBINES

WANG, XUEFEI
http://rave.ohiolink.edu/etdc/view?acc_num=case1480604602709635

Abstract Details

2017, Doctor of Philosophy, Case Western Reserve University, Civil Engineering.
Wind energy is one of the most promising renewable energy nowadays. To collect better wind resources, more efforts are putting forward to offshore areas, and the reliability and stability of offshore wind turbines become critical topics. The cost of wind turbine foundation accounts as much as 35% of whole project, and the load patterns of offshore wind turbines are different from other offshore structures. Therefore, an efficient foundation type is required. Suction bucket foundation, a promising alternative for offshore wind turbine foundations, is introduced in this study. In the design of offshore suction bucket foundations, it is necessary to conduct a comprehensive study to understand their behaviors under variable load and soil conditions. However, few open literature described in-situ tests of offshore suction bucket foundations, and the accuracy of 1-g laboratory tests are limited. In this research. A series of centrifuge tests were performed to investigate the seismic and lateral behaviors of offshore suction bucket foundations under earthquake loads, lateral static loads and lateral cyclic loads in both sandy soil and clay. Original suction bucket foundations with three aspect ratios and improved suction bucket foundations with internal compartments were tested. The test results are presented and used to calibrate the theoretical calculations. The research is expected to provide insights into designs of suction bucket foundations for offshore wind turbines.
Xiangwu Zeng (Committee Chair)
Adel Saada (Committee Member)
Xiong Yu (Committee Member)
Weihong Guo (Committee Member)
219 p.
Civil Engineering

Recommended Citations

Citations

  • WANG, X. (2017). CENTRIFUGE MODELLING OF SEISMIC AND LATERAL BEHAVIORS OF SUCTION BUCKET FOUNDATIONS FOR OFFSHORE WIND TURBINES [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1480604602709635

    APA Style (7th edition)

  • WANG, XUEFEI. CENTRIFUGE MODELLING OF SEISMIC AND LATERAL BEHAVIORS OF SUCTION BUCKET FOUNDATIONS FOR OFFSHORE WIND TURBINES. 2017. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1480604602709635.

    MLA Style (8th edition)

  • WANG, XUEFEI. "CENTRIFUGE MODELLING OF SEISMIC AND LATERAL BEHAVIORS OF SUCTION BUCKET FOUNDATIONS FOR OFFSHORE WIND TURBINES." Doctoral dissertation, Case Western Reserve University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1480604602709635

    Chicago Manual of Style (17th edition)

case1480604602709635
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This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.