Response of fixed offshore platforms to wave and current loading including soil–structure interaction

Autor:	M. Hesham El Naggar, Yasser E. Mostafa
Rok vydání:	2004
Předmět:	Nonlinear system Radiation damping Soil structure interaction Soil Science Submarine pipeline Geotechnical engineering Dissipation Geotechnical Engineering and Engineering Geology Pile Tower Finite element method Geology Civil and Structural Engineering
Zdroj:	Soil Dynamics and Earthquake Engineering. 24:357-368
ISSN:	0267-7261
Popis:	Fixed offshore platforms supported by pile foundations are required to resist dynamic lateral loading due to wave forces. The response of a jacket offshore tower is affected by the flexibility and nonlinear behaviour of the supporting piles. For offshore towers supported by clusters of piles, the response to environmental loads is strongly affected by the pile–soil–pile interaction. In the present study, the response of fixed offshore platforms supported by clusters of piles is investigated. The soil resistance to the pile movement is modelled using dynamic p – y curves and t – z curves to account for soil nonlinearity and energy dissipation through radiation damping. The load transfer curves for a single pile have been modified to account for the group effect. The wave forces on the tower members and the tower response are calculated in the time domain using a finite element package (ASAS). Several parameters affecting the dynamic characteristics of the platform and the platform response have been investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eee86f26af9a889a507c1ac28d951c1f https://doi.org/10.1016/j.soildyn.2003.11.008 Zobrazit plný text záznamu Full Text from ScienceDirect