Title: Considerations in the Use of Concrete for Offshore Structures

Author(s): George C. Hoff

Publication: Symposium Paper

Volume: 128

Issue:

Appears on pages(s): 749-788

Keywords: concrete construction; cost; economics; floating bodies; harbor structures; offshore structures; precast concrete; quality control; safety; structural design; Design

DOI: 10.14359/3242

Date: 11/1/1991

Abstract:
Provides background information related to the feasibility of offshore concrete structures for the development of hydrocarbon resources in both newly developing regions of the world and in areas of existing offshore operations where concrete is currently not used. Bottom-founded structures, floating structures, and other more specialized structures are described and their market potential discussed. Three hundred offshore platforms are planned for Asia and Australia between 1990 and 1995; many of these could be built with concrete. The use of local concrete materials and labor to produce moderate strength concrete for these platforms is discussed. Special design and safety considerations are noted. The structures can be built in dry docks, on skidways, or on submersible barges. Portions of the structures can be precast concrete. All of these structures involve some marine operations. General cost considerations and life-cycle costs are discussed.