Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure

Benjamin Santos, Tomas Gintautas, John Dalsgaard Sørensen, Alvaro Rodriguez, David Fernandez, Anand Natarajan, Wilfried NJOMO WANDJI

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Monopiles are currently the most commonly used substructure in the offshore wind market due to their ease of installation in shallow to medium waters. The monopile and the transition piece are connected by a grouted joint. Fatigue and corrosion are two of the most important degradation mechanisms in this type of support structures. These mechanisms increase the costs and compromise the reliability of the structures. The development of new models and methodologies for the analysis of these degradation mechanisms is crucial. For this reason, a methodology to analyze the behavior of grouted joints has been developed considering the effect of corrosion on the steel parts of the grouted joints, along with the consideration of stiffness degradation of the concrete structure and the reliability of the joint under fatigue. One type of grouted joint connection is considered: the conventional cylindrical joint with shear keys. Fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint.
Original languageEnglish
Title of host publication37th International Conference on Ocean, Offshore & Arctic Engineering
VolumeVolume 1: Offshore Technology
PublisherAmerican Society of Mechanical Engineers
Publication date2018
PagesV001T01A011
Article numberOMAE2018-77628
ISBN (Electronic) 978-0-7918-5120-3
DOIs
Publication statusPublished - 2018
Event37th International Conference on Ocean, Offshore and Arctic Engineering - Madrid, Spain
Duration: 17 Jun 201822 Jun 2018

Conference

Conference37th International Conference on Ocean, Offshore and Arctic Engineering
CountrySpain
CityMadrid
Period17/06/201822/06/2018

Cite this

Santos, B., Gintautas, T., Sørensen, J. D., Rodriguez, A., Fernandez, D., Natarajan, A., & NJOMO WANDJI, W. (2018). Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure. In 37th International Conference on Ocean, Offshore & Arctic Engineering (Vol. Volume 1: Offshore Technology, pp. V001T01A011). [OMAE2018-77628] American Society of Mechanical Engineers. https://doi.org/10.1115/OMAE2018-77628
Santos, Benjamin ; Gintautas, Tomas ; Sørensen, John Dalsgaard ; Rodriguez, Alvaro ; Fernandez, David ; Natarajan, Anand ; NJOMO WANDJI, Wilfried. / Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure. 37th International Conference on Ocean, Offshore & Arctic Engineering. Vol. Volume 1: Offshore Technology American Society of Mechanical Engineers, 2018. pp. V001T01A011
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abstract = "Monopiles are currently the most commonly used substructure in the offshore wind market due to their ease of installation in shallow to medium waters. The monopile and the transition piece are connected by a grouted joint. Fatigue and corrosion are two of the most important degradation mechanisms in this type of support structures. These mechanisms increase the costs and compromise the reliability of the structures. The development of new models and methodologies for the analysis of these degradation mechanisms is crucial. For this reason, a methodology to analyze the behavior of grouted joints has been developed considering the effect of corrosion on the steel parts of the grouted joints, along with the consideration of stiffness degradation of the concrete structure and the reliability of the joint under fatigue. One type of grouted joint connection is considered: the conventional cylindrical joint with shear keys. Fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint.",
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Santos, B, Gintautas, T, Sørensen, JD, Rodriguez, A, Fernandez, D, Natarajan, A & NJOMO WANDJI, W 2018, Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure. in 37th International Conference on Ocean, Offshore & Arctic Engineering. vol. Volume 1: Offshore Technology, OMAE2018-77628, American Society of Mechanical Engineers, pp. V001T01A011, 37th International Conference on Ocean, Offshore and Arctic Engineering, Madrid, Spain, 17/06/2018. https://doi.org/10.1115/OMAE2018-77628

Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure. / Santos, Benjamin; Gintautas, Tomas; Sørensen, John Dalsgaard; Rodriguez, Alvaro; Fernandez, David; Natarajan, Anand; NJOMO WANDJI, Wilfried.

37th International Conference on Ocean, Offshore & Arctic Engineering. Vol. Volume 1: Offshore Technology American Society of Mechanical Engineers, 2018. p. V001T01A011 OMAE2018-77628.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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N2 - Monopiles are currently the most commonly used substructure in the offshore wind market due to their ease of installation in shallow to medium waters. The monopile and the transition piece are connected by a grouted joint. Fatigue and corrosion are two of the most important degradation mechanisms in this type of support structures. These mechanisms increase the costs and compromise the reliability of the structures. The development of new models and methodologies for the analysis of these degradation mechanisms is crucial. For this reason, a methodology to analyze the behavior of grouted joints has been developed considering the effect of corrosion on the steel parts of the grouted joints, along with the consideration of stiffness degradation of the concrete structure and the reliability of the joint under fatigue. One type of grouted joint connection is considered: the conventional cylindrical joint with shear keys. Fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint.

AB - Monopiles are currently the most commonly used substructure in the offshore wind market due to their ease of installation in shallow to medium waters. The monopile and the transition piece are connected by a grouted joint. Fatigue and corrosion are two of the most important degradation mechanisms in this type of support structures. These mechanisms increase the costs and compromise the reliability of the structures. The development of new models and methodologies for the analysis of these degradation mechanisms is crucial. For this reason, a methodology to analyze the behavior of grouted joints has been developed considering the effect of corrosion on the steel parts of the grouted joints, along with the consideration of stiffness degradation of the concrete structure and the reliability of the joint under fatigue. One type of grouted joint connection is considered: the conventional cylindrical joint with shear keys. Fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint.

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BT - 37th International Conference on Ocean, Offshore & Arctic Engineering

PB - American Society of Mechanical Engineers

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Santos B, Gintautas T, Sørensen JD, Rodriguez A, Fernandez D, Natarajan A et al. Development of new methodologies to assess the structural integrity of the grouted joint of a 10MW wind turbine substructure. In 37th International Conference on Ocean, Offshore & Arctic Engineering. Vol. Volume 1: Offshore Technology. American Society of Mechanical Engineers. 2018. p. V001T01A011. OMAE2018-77628 https://doi.org/10.1115/OMAE2018-77628