Abstract
Offshore wind power has gained momentum as a means to diversify the world’s energy infrastructure; however, little is still known of the global stiffness behavior of the large diameter low aspect ratio monopiles which have become the foundation of choice for offshore wind towers. Traditionally, offshore foundations have been associated with gravity structures for the oil and gas industry, which in general do not need large moment loads, unlike wind. Geotechnical centrifuge tests were conducted to examine monotonic behavior of low aspect ratio piles in soft clays. Monopiles with aspect ratio of two were tested in the 150g-ton centrifuge at Rensselaer Polytechnic Institute. Initial pile test results include force-displacement for displacement controlled loading. This paper focuses on ultimate capacity of short aspect ratio monopiles after cyclic loading. Post-cyclic monotonic capacity is compared to virgin monotonic capacity for pure rotational loading over a range of eccentricities.
| Original language | English |
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| Title of host publication | GeoQuebec 2015 |
| Editors | Didier Perret, Richard Fortier |
| Place of Publication | Richmond, B.C. |
| Publisher | Canadian Geotechnical Society |
| Publication status | Published - 2015 |
| Event | GeoQuebec 2015: Challenges from north to south - QUEBEC CITY CONVENTION CENTRE, Quebec, Canada Duration: 20 Sep 2015 → 23 Sep 2015 http://www.geoquebec2015.ca/en/ |
Conference
| Conference | GeoQuebec 2015 |
|---|---|
| Country | Canada |
| City | Quebec |
| Period | 20/09/15 → 23/09/15 |
| Internet address |