The Ninian Concrete Platform in the North Sea
The case history of the Ninian Central Platform, as designed and built for Chevron U.K. by Howard Doris Ltd, is described in this paper; the main characteristics of the platform being:
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CASE HISTORIES IN OFFSHORE ENGINEERING
EDITEDBY
G. MAlER POLITECNICO DI MILANO
SPRINGER-VERLAG WIEN GMBH
Le spese di stampa di questo volume sono in parte coperte da contributi del Consiglio Nazionale delle Ricerche.
This volume contains 185 illustrations.
This work is subject to copyright. All rights are reserved,
whether the whole or part of the material is concerned specifically those of translation, reprinting, re.use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. © 1985 by Springer-Verlag Wien Originally published by Springer-Verlag Wien New York in 1985
ISBN 978-3-211-81817-6 ISBN 978-3-7091-2742-1 (eBook) DOI 10.1007/978-3-7091-2742-1
Wbile tbis book was in preparation tbe international scientific community bad to mourn tbe untimely departure of CISM Rector Antoni Sawczuk. Witb bis clear awareness of tbe potentialities of sound interactions and crossfertilization between mecbanics and engineering, professor Sawczuk bad expressed a particularly strong interest in tbe CISM courses in offsbare engineering. Let tbis volume be one of tbe bomages to tbe unfading memory oftbis outstanding scientist and engineer.
PREFACE
In little more than one decade, offsbare engineering has developed from a relatively marginal area of unusual, highly specialized industrial activities, to a jlourishing field in the main stream of today's technologies, with remarkable economical, social and political implications. All along this growth the involvement of applied mechanics has been crucial. An offsbare platform, tagether with its foundation, is required to withstand in service place a number of severe loading conditions (primarily, but not exclusively, wave forces) and other environmental effects such as corrosion. Moreover it must be constructed elsewhere, transported and installed, and alt these phases further expand the variety of actions or interactions to be faced by the designer. Design must be closely related to the construction process and both are injluenced by the peculiarities of the specific marine environment. Substantially the same remarks apply also to any major offsbare pipeline. Ocean engineering is therefore interdisciplinary by its very nature and entails applications of various applied sciences, "in primis" of various branches of mechanics. As the resources of aceans and seas (primarily but not only oil and gas) are being exploited in deeper and deeper waters and more and more hostile environments, unusual or new problems arise, setting a real challenge to industry and to research and teaching institutions as weil. Awareness of this scenario gave origin to a series of C/SM short courses on "Modern problems in offsbare engineering" covering the main mechanics-related topics, namely: fluid loadings; structural mechanics problems; soil mechanics and foundation engineering problems; fracture and fatigue; corrosion and material properties; reinforced concrete; safety and monitoring; case histories. The lecturers have been well-known exper
