Details
| Translated title of the contribution | Sinking grouted joints in offshore wind turbines - Bearing behaviour, repair, and optimisation |
|---|---|
| Original language | German |
| Pages (from-to) | 637-647 |
| Number of pages | 11 |
| Journal | STAHLBAU |
| Volume | 79 |
| Issue number | 9 |
| Publication status | Published - 6 Sept 2010 |
Abstract
Grouted joints are mainly used for the connection of foundation piles and substructures of offshore wind turbines. Grouted joints consist of tube-to-tube-connections where the annulus is filled with a high performance mortar. Since the early 90s, grouted joints have been installed in offshore wind energy converters with monopiles using plain steel sections with no additional mechanical interlock. During maintenance work vertical slippages have been detected at substructures with monopiles in Denmark, UK and the Netherlands. The movements may result from a loss of bond between steel and mortar. Within this paper the construction and the bearing behaviour of grouted joints is presented. Additionally experimental investigations are shown. Based on own experiences reasons for failure and repair opportunities are introduced and optimisation opportunities for future turbines are proposed.
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Metals and Alloys
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In: STAHLBAU, Vol. 79, No. 9, 06.09.2010, p. 637-647.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Durchrutschende Grout-Verbindungen in OWEA – Tragverhalten, Instandsetzung und Optimierung
AU - Schaumann, Peter
AU - Lochte-Holtgreven, Stephan
AU - Lohaus, Ludger
AU - Lindschulte, Nick
PY - 2010/9/6
Y1 - 2010/9/6
N2 - Grouted joints are mainly used for the connection of foundation piles and substructures of offshore wind turbines. Grouted joints consist of tube-to-tube-connections where the annulus is filled with a high performance mortar. Since the early 90s, grouted joints have been installed in offshore wind energy converters with monopiles using plain steel sections with no additional mechanical interlock. During maintenance work vertical slippages have been detected at substructures with monopiles in Denmark, UK and the Netherlands. The movements may result from a loss of bond between steel and mortar. Within this paper the construction and the bearing behaviour of grouted joints is presented. Additionally experimental investigations are shown. Based on own experiences reasons for failure and repair opportunities are introduced and optimisation opportunities for future turbines are proposed.
AB - Grouted joints are mainly used for the connection of foundation piles and substructures of offshore wind turbines. Grouted joints consist of tube-to-tube-connections where the annulus is filled with a high performance mortar. Since the early 90s, grouted joints have been installed in offshore wind energy converters with monopiles using plain steel sections with no additional mechanical interlock. During maintenance work vertical slippages have been detected at substructures with monopiles in Denmark, UK and the Netherlands. The movements may result from a loss of bond between steel and mortar. Within this paper the construction and the bearing behaviour of grouted joints is presented. Additionally experimental investigations are shown. Based on own experiences reasons for failure and repair opportunities are introduced and optimisation opportunities for future turbines are proposed.
UR - http://www.scopus.com/inward/record.url?scp=77957870249&partnerID=8YFLogxK
U2 - 10.1002/stab.201001357
DO - 10.1002/stab.201001357
M3 - Artikel
AN - SCOPUS:77957870249
VL - 79
SP - 637
EP - 647
JO - STAHLBAU
JF - STAHLBAU
SN - 0038-9145
IS - 9
ER -