Response spectrum method for seismic analysis of monopile offshore wind turbine

Zhao, Mi; Gao, Zhidong; Wang, Piguang

doi:10.1016/j.soildyn.2020.106212

Cited by 42 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, Vs data can be employed in the designation of offshore infrastructure, such as oil and gas platforms, subsea pipelines, and renewable energy installations. In fact, Vs data provide engineers with information of soil stiffness and dynamic behavior of the seabed, assisting them in the design of stable offshore foundations [69]. In a research project, Huijer et al utilized Vs and other seismic data to assess potential seismic hazards in the south of Lebanon [70].…”

Section: Geohazard Assessment In Offshore Environmentsmentioning

confidence: 99%

Shear Wave Velocity Applications in Geomechanics with Focus on Risk Assessment in Carbon Capture and Storage Projects

Khalilidermani,

Knez

2024

Energies

View full text Add to dashboard Cite

Shear wave velocity (Vs) has significant applications in geoengineering investigations. With the ongoing rise in carbon capture and storage (CCS) initiatives, the role of Vs in monitoring the CO2 sequestration sites is escalating. Although many studies have been conducted to assess CCS-induced risks, no inclusive research has been conducted integrating those investigations. This study strives to collate and integrate the applications of Vs in geoscience with an emphasis on CCS risk assessment. Based on this research, major CCS-induced risks were detected: induced seismicity, caprock failure, groundwater contamination, fault reactivation, and reservoir deformation. These risks were inclusively described, and the mathematical formulations incorporating the Vs parameter in risk analysis were elaborated. It was concluded that Vs applications can be further extended in monitoring CO2 plume migration, optimizing CO2 injection pressures, preventing shallow water contamination, and predicting CCS-induced seismic events. All these applications require fully coupled hydromechanical analysis based on poroelasticity theory. Hence, various factors including pore pressure, in situ stresses, faults distribution, and poroelastic parameters must be carefully determined before the CO2 injection phase. The mathematical formulations presented in the present study are quite applicable for granting the safety and long-term success of subsurface carbon sequestration.

show abstract

Section: Geohazard Assessment In Offshore Environmentsmentioning

confidence: 99%

Shear Wave Velocity Applications in Geomechanics with Focus on Risk Assessment in Carbon Capture and Storage Projects

Khalilidermani,

Knez

2024

Energies

View full text Add to dashboard Cite

show abstract

“…The wind turbine model on a monopile foundation immersed into water is considered to have three parts (Figure 4) (i) the monopile part below the seabed, (ii) the transition piece surrounded by water (iii) the main of the superstructure. A 5 MW capacity model is common and mostly referred to in literature (Ali et al, 2020;Katsanos et al, 2016;Kaynia, 2019;Zhao et al, 2020;Zuo et al, 2018Zuo et al, , 2020. Hence, in this study, the NREL offshore 5MW baseline wind turbine is used.…”

Section: Offshore Wind Turbine Modelmentioning

confidence: 99%

“…Kaynia, (2019) found that the effect of vertical earthquake excitation is crucial for structures with high natural frequencies in the vertical direction like an OWT. Zhao et al, (2020) used a response spectrum method to evaluate the OWT's pile-water and pile-soil interactions, also pointed out that pile-water interaction significantly affects the structural displacement. In recent work, Kaynia, (2020) presented the effect of kinematic interaction through the numerical of monopole OWT.…”

Section: Introductionmentioning

confidence: 99%

Offshore wind turbine subjected to supershear earthquake ruptures

Chaudhari

Reddy

Somala

2022

Advances in Structural Engineering

View full text Add to dashboard Cite

Supershear earthquakes, analogous to supersonic speeds of sounds, show the presence of a Mach front in the top view. This feature was observed in several past earthquakes, including the 1999 Izmit earthquake, 2001 Kokoxili earthquake, to name a few. The ground motion from supershear ruptures can be destructive to structures due to dominant fault-parallel components. In this study, we demonstrate the effect of supershear ruptures on wind turbines by modelling them in OpenSees. Earthquake ruptures are simulated using SPECFEM3D, another open-source software. By considering arrays at different offsets along strike and away from the strike, the distance effect on serviceability limit states of wind turbines is studied using supershear and subshear earthquakes.

show abstract

“…Extensive research has been presented in the literature on the response of high-rise towers (Pallarés et al, 2009;He et al, 2009;Minghini et al, 2014;Zhou et al, 2015;Yuan et al, 2017;Zhao et al, 2018Zhao et al, , 2020, especially when they are excited by near-fault pulse-like ground motions. Stamatopoulos (2013) evaluated the seismic response of a 53.95-meter-tall steel wind turbine subjected to near-fault ground motions, based on the recommendations of the Greek Aseismic Code.…”

Section: Introductionmentioning

confidence: 99%

Reliability assessment for hybrid solar tower under near-fault pulse-like ground motions using Kriging surrogate and subset simulation

Ding

Bai

2023

Journal of Vibration and Control

View full text Add to dashboard Cite

Concentrated solar towers are commonly designed as high-rise hybrid structures, which exhibit properties of non-uniform mass and rigidity along the height of the tower, and consequently are vulnerable to strong seismic ground motions. This study presents a comprehensive analysis of the seismic performance of a hybrid solar tower, which is one of the tallest hybrid solar towers in the world. The hybrid solar tower includes a reinforced concrete tube at the bottom and a steel-truss tube at the top and is subjected to near-fault pulse-like ground motions. A simulation technique that utilizes the stochastic point-source model and a velocity pulse model was introduced to generate stochastic pulse-like ground motions. The stochastic response of the hybrid solar tower to near-fault pulse-like ground motions was computed to estimate the tower’s reliability. To enhance the efficiency of reliability estimation, an algorithm combining the Kriging surrogate and subset simulation (K-SS) was presented. The aggregate response of the tower was found to be significantly more damaging over the border of the reinforced concrete tube and the steel-truss tube than below the border. The study found that the hybrid solar tower has a reliability of 90.53% when subjected to stochastic near-fault pulse-like ground motions with a peak ground acceleration of 0.62 g. The findings of this study contribute to the understanding of the seismic performance of high-rise hybrid solar towers under near-fault pulse-like ground motions.

show abstract

Response spectrum method for seismic analysis of monopile offshore wind turbine

Cited by 42 publications

References 27 publications

Shear Wave Velocity Applications in Geomechanics with Focus on Risk Assessment in Carbon Capture and Storage Projects

Shear Wave Velocity Applications in Geomechanics with Focus on Risk Assessment in Carbon Capture and Storage Projects

Offshore wind turbine subjected to supershear earthquake ruptures

Reliability assessment for hybrid solar tower under near-fault pulse-like ground motions using Kriging surrogate and subset simulation

Contact Info

Product

Resources

About