A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic Response of Monopile Supported Offshore Wind Turbine in Liquefied Soil
Offshore wind turbines (OWT) are constructed in the seismically active areas to meet the growing energy demand. Monopile are commonly used as a foundation for OWT due to simple construction techniques and cost-effectiveness. OWT is subjected to various operational loads, such as wind, wave and seismic load during its design life. This study examines the dynamic response of the monopile supported OWT installed in layered sand deposits under the combined effect of operational and seismic loads. A two-dimensional (2D) finite element (FE) model is developed using OpenSees. Monopile and tower are modeled as linear Euler–Bernoulli beam, and soil domain is modeled as a quadrilateral plane strain element with solid–fluid fully coupled material. Pile–soil interaction is modeled using nonlinear p-y springs. Various earthquake records collected from online resources are scaled and applied at the base of the soil column along with various operational loads. The effect of intensity and depth of liquefaction on the dynamic response of the OWT structure are studied. The implication in the design of OWT in liquefied soil is suggested.
Dynamic Response of Monopile Supported Offshore Wind Turbine in Liquefied Soil
Offshore wind turbines (OWT) are constructed in the seismically active areas to meet the growing energy demand. Monopile are commonly used as a foundation for OWT due to simple construction techniques and cost-effectiveness. OWT is subjected to various operational loads, such as wind, wave and seismic load during its design life. This study examines the dynamic response of the monopile supported OWT installed in layered sand deposits under the combined effect of operational and seismic loads. A two-dimensional (2D) finite element (FE) model is developed using OpenSees. Monopile and tower are modeled as linear Euler–Bernoulli beam, and soil domain is modeled as a quadrilateral plane strain element with solid–fluid fully coupled material. Pile–soil interaction is modeled using nonlinear p-y springs. Various earthquake records collected from online resources are scaled and applied at the base of the soil column along with various operational loads. The effect of intensity and depth of liquefaction on the dynamic response of the OWT structure are studied. The implication in the design of OWT in liquefied soil is suggested.
Dynamic Response of Monopile Supported Offshore Wind Turbine in Liquefied Soil
Springer Transactions in Civil and Environmental Engineering
Sitharam, T.G. (editor) / Jakka, Ravi (editor) / Kolathayar, Sreevalsa (editor) / Haldar, Sumanta (author) / Patra, Sangeet Kumar (author)
Latest Developments in Geotechnical Earthquake Engineering and Soil Dynamics ; Chapter: 27 ; 525-538
2021-07-02
14 pages
Article/Chapter (Book)
Electronic Resource
English
Response of Monopile Supported Offshore Wind Turbine in Liquefied Soil
| Springer Verlag | 2020
Seismic Analysis of Monopile Supported Offshore Wind Turbine
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