Hybrid joining of jacket structures for offshore wind turbines – Determination of requirements and adhesive characterisation. (15th May 2022)

• Record Type: Journal Article
• Authors: Albiez, Matthias; Damm, Jannis; Ummenhofer, Thomas; Kaufmann, Marvin; Vallée, Till; Myslicki, Sebastian
• Is Part Of: Engineering structures. Volume 259(2022)
• Publication Date: 2022-05-15
• Subjects: Steel structures -- Wind energy -- Tubular structures -- Adhesive bonding -- Adhesive -- Hybrid joints -- Numerical modelling -- Experimental testing; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2022.114186
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: A joining concept combining adhesive bonding, welding and bolting is presented. Climate data from platforms in the North and Baltic Seas are obtained and evaluated. A real offshore jacket is numerically modelled in order to determine mechanical stresses. Adhesives meeting the requirements are analyzed mechanically and thermo-mechanically. The relationship between stress, temperature and adhesive properties is highlighted. Abstract: Due to the advantageous wind conditions, many new structures are planned offshore. The construction of offshore structures with ever increasing sizes requires new concepts to cope with the particular requirements thereof. One often overlooked possibility is adhesive bonding as a structural joining method, which upholds significant optimisation potential. This paper, the first in a series of two, illustrates the potential of adhesive bonding on the widely used jacket structure. For that, the structural concept is adapted towards ease of manufacturing, hybrid joints are defined, adhesives are selected according to requirements resulting from structural and climatic constraints, structural verifications performed, and the validation therefor presented in preliminary small-scale tests—which will be upscaled in the second part of this series. This paper thus serves as a roadmap for practitioners, and outlines the various steps to evaluate the potential of adhesive bonding in complex structures.