D7.21 Report on Validation of design of grouted joints Work Package 7.2: D7.21 Report on Validation of design of grouted joints Work Package 7.2

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

Publikation: Bidrag til bog/antologi/rapport/konference proceedingBidrag til rapportForskning

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Resumé

Grouted joints for offshore wind turbines forming the connection between the transition piece to the monopile and tower are one of the weakest links of the support structure. The grout being a reinforced concrete material is susceptible to cyclic loading comprising of tensile and compressive components. As offshore wind turbines reach 10 MW capacities, it is extremely important to determine the reliability of grouted joints and their design configurations so as to ensure integrity of the 10 MW support structure. This report investigates two types of grouted joint connections, the conventional cylindrical joint with shear keys and a conical joint without shear keys. In both cases, fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint. Key recommendations are made for the reliable design of grouted joints for 10 MW wind turbines on monopile substructures.
OriginalsprogEngelsk
TitelIRPWIND.EU D7.21
ForlagEuropean Commission * Office for Official Publications of the European Union
Publikationsdatosep. 2017
Kapitel2.2,4,5.2.7,7.3
StatusUdgivet - sep. 2017

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Offshore wind turbines
Wind turbines
Towers
Reinforced concrete
Fatigue of materials

Citer dette

Rodriguez, A., Natarajan, A., Santos, B., Fernandez, D., Sørensen, J. D., Gintautas, T., & NJOMO WANDJI, W. (2017). D7.21 Report on Validation of design of grouted joints Work Package 7.2: D7.21 Report on Validation of design of grouted joints Work Package 7.2 . I IRPWIND.EU D7.21 European Commission * Office for Official Publications of the European Union.
Rodriguez, Alvaro ; Natarajan, Anand ; Santos, Benjamin ; Fernandez, David ; Sørensen, John Dalsgaard ; Gintautas, Tomas ; NJOMO WANDJI, Wilfried. / D7.21 Report on Validation of design of grouted joints Work Package 7.2 : D7.21 Report on Validation of design of grouted joints Work Package 7.2 . IRPWIND.EU D7.21. European Commission * Office for Official Publications of the European Union, 2017.
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title = "D7.21 Report on Validation of design of grouted joints Work Package 7.2: D7.21 Report on Validation of design of grouted joints Work Package 7.2",
abstract = "Grouted joints for offshore wind turbines forming the connection between the transition piece to the monopile and tower are one of the weakest links of the support structure. The grout being a reinforced concrete material is susceptible to cyclic loading comprising of tensile and compressive components. As offshore wind turbines reach 10 MW capacities, it is extremely important to determine the reliability of grouted joints and their design configurations so as to ensure integrity of the 10 MW support structure. This report investigates two types of grouted joint connections, the conventional cylindrical joint with shear keys and a conical joint without shear keys. In both cases, fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint. Key recommendations are made for the reliable design of grouted joints for 10 MW wind turbines on monopile substructures.",
author = "Alvaro Rodriguez and Anand Natarajan and Benjamin Santos and David Fernandez and S{\o}rensen, {John Dalsgaard} and Tomas Gintautas and {NJOMO WANDJI}, Wilfried",
year = "2017",
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Rodriguez, A, Natarajan, A, Santos, B, Fernandez, D, Sørensen, JD, Gintautas, T & NJOMO WANDJI, W 2017, D7.21 Report on Validation of design of grouted joints Work Package 7.2: D7.21 Report on Validation of design of grouted joints Work Package 7.2 . i IRPWIND.EU D7.21. European Commission * Office for Official Publications of the European Union.

D7.21 Report on Validation of design of grouted joints Work Package 7.2 : D7.21 Report on Validation of design of grouted joints Work Package 7.2 . / Rodriguez, Alvaro; Natarajan, Anand; Santos, Benjamin; Fernandez, David ; Sørensen, John Dalsgaard; Gintautas, Tomas; NJOMO WANDJI, Wilfried.

IRPWIND.EU D7.21. European Commission * Office for Official Publications of the European Union, 2017.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingBidrag til rapportForskning

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AU - Rodriguez, Alvaro

AU - Natarajan, Anand

AU - Santos, Benjamin

AU - Fernandez, David

AU - Sørensen, John Dalsgaard

AU - Gintautas, Tomas

AU - NJOMO WANDJI, Wilfried

PY - 2017/9

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N2 - Grouted joints for offshore wind turbines forming the connection between the transition piece to the monopile and tower are one of the weakest links of the support structure. The grout being a reinforced concrete material is susceptible to cyclic loading comprising of tensile and compressive components. As offshore wind turbines reach 10 MW capacities, it is extremely important to determine the reliability of grouted joints and their design configurations so as to ensure integrity of the 10 MW support structure. This report investigates two types of grouted joint connections, the conventional cylindrical joint with shear keys and a conical joint without shear keys. In both cases, fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint. Key recommendations are made for the reliable design of grouted joints for 10 MW wind turbines on monopile substructures.

AB - Grouted joints for offshore wind turbines forming the connection between the transition piece to the monopile and tower are one of the weakest links of the support structure. The grout being a reinforced concrete material is susceptible to cyclic loading comprising of tensile and compressive components. As offshore wind turbines reach 10 MW capacities, it is extremely important to determine the reliability of grouted joints and their design configurations so as to ensure integrity of the 10 MW support structure. This report investigates two types of grouted joint connections, the conventional cylindrical joint with shear keys and a conical joint without shear keys. In both cases, fully coupled load simulations are made to determine the fatigue resistance and ultimate load resistance of the joint. Key recommendations are made for the reliable design of grouted joints for 10 MW wind turbines on monopile substructures.

M3 - Report chapter

BT - IRPWIND.EU D7.21

PB - European Commission * Office for Official Publications of the European Union

ER -

Rodriguez A, Natarajan A, Santos B, Fernandez D, Sørensen JD, Gintautas T et al. D7.21 Report on Validation of design of grouted joints Work Package 7.2: D7.21 Report on Validation of design of grouted joints Work Package 7.2 . I IRPWIND.EU D7.21. European Commission * Office for Official Publications of the European Union. 2017