Jürgen Grünberg, Univ.-Prof. Dr.-Ing., studied civil engineering at the Technical University Berlin and at the University Hannover where he gained his doctorate from. Following eight years as project manager at HOCHTIEF AG and at IMS, Ingenieurgemeinschaft Meerestechnik und Seebau, since 1983 as consulting engineer and since 1986 as test engineer for structural engineering, he became professor for concrete construction at the University Hannover in 1993. Already since 1980 he deals with design and construction of offshore structures, telecommunication towers and later on of wind turbine towers. Professor Grünberg is a member of numerous national and international expert commissions in the fields of reinforced concrete and the author of a large number of books and articles. Joachim Göhlmann, Dr.-Ing., studied structural engineering at the Leibniz University Hannover where he completed his doctorate with the doctorate thesis ?Damage calculation of concrete constructions for wind turbines subjected to multi-stage and multi-axial fatigue loading?.Dr. Göhlmann has been involved with the design, manufacture and measurement of towers and foundations for wind turbines for over 13 years. Since 2010 he has been managing director at grbv Ingenieure im Bauwesen GmbH in Hannover, Germany. grbv is an independent planning and consulting company for structural design of towers and support structures for on- and offshore wind farms.

• IntroductionActions on wind turbine towers - Permanent actions- Turbine operation (rotor and nacelle)- Wind load- Height of sea level- Hydrodynamic environment conditions- Hydrodynamic analysis- Thermal actions- Sea ice- Icing of construction elementsNon-linear material behaviour- General- Material laws for reinforced and prestressed concrete- Bending moment?curvature relationships- Deformations and bending moments to second-order theory- Cross section design ultimate limit state- Three-dimensional mechanical models for concreteSupport structure and design analysis- Basis of calculation- Structural model of the tower- Vibration analysis- Pre-stressing- Design of onshore wind turbines- Design of offshore wind turbines- Ultimate limit state- Verification of serviceability limit state- Verification against fatigue- Node design- Foundation designManufacturing of prestressed concrete towers- Introduction- Hybrid structures of steel and prestressed concrete- Segmental construction method for prestressed concrete towers- Offshore concrete foundationReferences

Jürgen Grünberg, Univ.-Prof. Dr.-Ing., studied civil engineering at the Technical University Berlin and at the University Hannover where he gained his doctorate from. Following eight years as project manager at HOCHTIEF AG and at IMS, Ingenieurgemeinschaft Meerestechnik und Seebau, since 1983 as consulting engineer and since 1986 as test engineer for structural engineering, he became professor for concrete construction at the University Hannover in 1993. Already since 1980 he deals with design and construction of offshore structures, telecommunication towers and later on of wind turbine towers. Professor Grünberg is a member of numerous national and international expert commissions in the fields of reinforced concrete and the author of a large number of books and articles. Joachim Göhlmann, Dr.-Ing., studied structural engineering at the Leibniz University Hannover where he completed his doctorate with the doctorate thesis ?Damage calculation of concrete constructions for wind turbines subjected to multi-stage and multi-axial fatigue loading?.Dr. Göhlmann has been involved with the design, manufacture and measurement of towers and foundations for wind turbines for over 13 years. Since 2010 he has been managing director at grbv Ingenieure im Bauwesen GmbH in Hannover, Germany. grbv is an independent planning and consulting company for structural design of towers and support structures for on- and offshore wind farms.

• IntroductionActions on wind turbine towers - Permanent actions- Turbine operation (rotor and nacelle)- Wind load- Height of sea level- Hydrodynamic environment conditions- Hydrodynamic analysis- Thermal actions- Sea ice- Icing of construction elementsNon-linear material behaviour- General- Material laws for reinforced and prestressed concrete- Bending moment?curvature relationships- Deformations and bending moments to second-order theory- Cross section design ultimate limit state- Three-dimensional mechanical models for concreteSupport structure and design analysis- Basis of calculation- Structural model of the tower- Vibration analysis- Pre-stressing- Design of onshore wind turbines- Design of offshore wind turbines- Ultimate limit state- Verification of serviceability limit state- Verification against fatigue- Node design- Foundation designManufacturing of prestressed concrete towers- Introduction- Hybrid structures of steel and prestressed concrete- Segmental construction method for prestressed concrete towers- Offshore concrete foundationReferences

Jürgen Grünberg, Univ.-Prof. Dr.-Ing., studied civil engineering at the Technical University Berlin and at the University Hannover where he gained his doctorate from. Following eight years as project manager at HOCHTIEF AG and at IMS, Ingenieurgemeinschaft Meerestechnik und Seebau, since 1983 as consulting engineer and since 1986 as test engineer for structural engineering, he became professor for concrete construction at the University Hannover in 1993. Already since 1980 he deals with design and construction of offshore structures, telecommunication towers and later on of wind turbine towers. Professor Grünberg is a member of numerous national and international expert commissions in the fields of reinforced concrete and the author of a large number of books and articles. Joachim Göhlmann, Dr.-Ing., studied structural engineering at the Leibniz University Hannover where he completed his doctorate with the doctorate thesis ?Damage calculation of concrete constructions for wind turbines subjected to multi-stage and multi-axial fatigue loading?.Dr. Göhlmann has been involved with the design, manufacture and measurement of towers and foundations for wind turbines for over 13 years. Since 2010 he has been managing director at grbv Ingenieure im Bauwesen GmbH in Hannover, Germany. grbv is an independent planning and consulting company for structural design of towers and support structures for on- and offshore wind farms.

• IntroductionActions on wind turbine towers - Permanent actions- Turbine operation (rotor and nacelle)- Wind load- Height of sea level- Hydrodynamic environment conditions- Hydrodynamic analysis- Thermal actions- Sea ice- Icing of construction elementsNon-linear material behaviour- General- Material laws for reinforced and prestressed concrete- Bending moment?curvature relationships- Deformations and bending moments to second-order theory- Cross section design ultimate limit state- Three-dimensional mechanical models for concreteSupport structure and design analysis- Basis of calculation- Structural model of the tower- Vibration analysis- Pre-stressing- Design of onshore wind turbines- Design of offshore wind turbines- Ultimate limit state- Verification of serviceability limit state- Verification against fatigue- Node design- Foundation designManufacturing of prestressed concrete towers- Introduction- Hybrid structures of steel and prestressed concrete- Segmental construction method for prestressed concrete towers- Offshore concrete foundationReferences