Soil-foundation interaction of wind turbine towers on monopiles

Psarropoulos, PN; Drosos, V; Tsompanakis, Y

dc.contributor.author	Psarropoulos, PN	en
dc.contributor.author	Drosos, V	en
dc.contributor.author	Tsompanakis, Y	en
dc.date.accessioned	2014-03-01T02:52:45Z
dc.date.available	2014-03-01T02:52:45Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36047
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84858380731&partnerID=40&md5=7597e1304adb6eb6d08ac82ac13dda7e	en
dc.subject	Numerical modeling	en
dc.subject	Pile foundations	en
dc.subject	Soil-structure interaction	en
dc.subject	Wind turbines	en
dc.subject	Winkler springs	en
dc.subject.other	Constitutive law	en
dc.subject.other	Continuous medium	en
dc.subject.other	Efficient designs	en
dc.subject.other	Experimental data	en
dc.subject.other	Finite element models	en
dc.subject.other	Foundation systems	en
dc.subject.other	Lateral loading	en
dc.subject.other	Monopile	en
dc.subject.other	Monopiles	en
dc.subject.other	Numerical modeling	en
dc.subject.other	Offshore wind turbines	en
dc.subject.other	Overall stiffness	en
dc.subject.other	P-y curves	en
dc.subject.other	Pile design	en
dc.subject.other	Soil-pile interface	en
dc.subject.other	Soil-pile system	en
dc.subject.other	Three dimensional finite elements	en
dc.subject.other	Wind turbine towers	en
dc.subject.other	Winkler	en
dc.subject.other	Winkler foundation models	en
dc.subject.other	Design	en
dc.subject.other	Pile foundations	en
dc.subject.other	Soils	en
dc.subject.other	Three dimensional	en
dc.subject.other	Wind turbines	en
dc.subject.other	Piles	en
dc.title	Soil-foundation interaction of wind turbine towers on monopiles	en
heal.type	conferenceItem	en
heal.publicationDate	2010	en
heal.abstract	Undoubtedly, the foundation of a wind turbine is the key component for the safe transfer of the loads acting on the superstructure to the ground. Furthermore, the overall stiffness of the whole system, which is the most important factor in the design of a wind turbine, may be altered substantially by the potential compliance of the underlying soil and the foundation. Therefore, it is evident that an efficient design of the foundation is required in order to reduce both the risk and the cost of a wind turbine. The current study is focused in the investigation of issues related to wind turbines foundation using piles, and more specifically, with the response of monopile foundation systems, which is one of the most popular foundation methods, especially for offshore wind turbines. To highlight some important aspects of pile design under lateral loading, the problem is examined by utilizing two different methodologies: (a) a Winkler foundation model, and (b) a three dimensional (3D) continuous medium finite element model, while the results are compared with experimental data from the literature. The use of the Winkler approach, along with the provisions of the norms for the generation of p-y curves, leads to an overestimation of the soil-pile system stiffness. In contrast, even simple threedimensional finite element modeling has been proven more capable of assessing the correct soil-pile stiffness. However, a more sophisticated numerical simulation is capable of taking into account the soil-pile interfaces and to incorporate a realistic constitutive law to accurately estimate the ultimate soil resistance. © 2010 Civil-Comp Press.	en
heal.journalName	Proceedings of the 7th International Conference on Engineering Computational Technology	en