Details
| Translated title of the contribution | Design of axially loaded grouted joints of offshore support structures |
|---|---|
| Original language | German |
| Pages | 679-688 |
| Number of pages | 10 |
| Volume | 81 |
| Issue number | 9 |
| Journal | STAHLBAU |
| Publication status | Published - 5 Sept 2012 |
Abstract
Grouted joints in spatial substructures of offshore wind turbines in deeper waters are prevailing axially loaded and due to installation procedures equipped with large grout annulus. Current design standards recommend the verification of the structural and fatigue behaviour using engineering models. The engineering models originate from empirical analyses and scaled tests including combined loading with Portland cement core for defined ranges of validity. The design with these formulae includes the calculation of the compression strut and the grout matrix failure. In case of deviating geometries or use of ultra high performance grouts, the actual axial strength of grouted joints is underestimated. Within this paper an enhanced engineering model based on simple structural mechanics is presented which incorporates influences of high performance grouts and confinement effects. Thus, an appropriate estimation of the axial strength for axially loaded grouted joints in offshore substructures is possible.
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. 81, No. 9, 05.09.2012, p. 679-688.
Research output: Contribution to specialist publication › Contribution in non-scientific journal › Transfer
}
TY - GEN
T1 - Nachweisverfahren zur Tragfähigkeit überwiegend axial beanspruchter Grouted Joints in Offshore-Tragstrukturen
AU - Schaumann, Peter
AU - Bechtel, Anne
AU - Lochte-Holtgreven, Stephan
PY - 2012/9/5
Y1 - 2012/9/5
N2 - Grouted joints in spatial substructures of offshore wind turbines in deeper waters are prevailing axially loaded and due to installation procedures equipped with large grout annulus. Current design standards recommend the verification of the structural and fatigue behaviour using engineering models. The engineering models originate from empirical analyses and scaled tests including combined loading with Portland cement core for defined ranges of validity. The design with these formulae includes the calculation of the compression strut and the grout matrix failure. In case of deviating geometries or use of ultra high performance grouts, the actual axial strength of grouted joints is underestimated. Within this paper an enhanced engineering model based on simple structural mechanics is presented which incorporates influences of high performance grouts and confinement effects. Thus, an appropriate estimation of the axial strength for axially loaded grouted joints in offshore substructures is possible.
AB - Grouted joints in spatial substructures of offshore wind turbines in deeper waters are prevailing axially loaded and due to installation procedures equipped with large grout annulus. Current design standards recommend the verification of the structural and fatigue behaviour using engineering models. The engineering models originate from empirical analyses and scaled tests including combined loading with Portland cement core for defined ranges of validity. The design with these formulae includes the calculation of the compression strut and the grout matrix failure. In case of deviating geometries or use of ultra high performance grouts, the actual axial strength of grouted joints is underestimated. Within this paper an enhanced engineering model based on simple structural mechanics is presented which incorporates influences of high performance grouts and confinement effects. Thus, an appropriate estimation of the axial strength for axially loaded grouted joints in offshore substructures is possible.
UR - http://www.scopus.com/inward/record.url?scp=84866073132&partnerID=8YFLogxK
U2 - 10.1002/stab.201201596
DO - 10.1002/stab.201201596
M3 - Beitrag in Publikumszeitung/-zeitschrift
AN - SCOPUS:84866073132
VL - 81
SP - 679
EP - 688
JO - STAHLBAU
JF - STAHLBAU
SN - 0038-9145
ER -