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Encyclopedia of Ocean Engineering pp 1–4Cite as

Concrete Platform

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Synonyms

(Concrete Gravity-Based Structures) CGBS

Definition

A CGBS is generally a very large and extremely heavy reinforced concrete structure which is placed on the seabed. It withstands the extreme environmental forces by virtue of its own weight and inherent strength.

CGBS platforms are among the largest and most impressive structures ever built and moved by man. To date the Troll platform is installed in the deepest water (303 m), and the Hibernia platform is the heaviest weighing 1.2 million tons on land. The designs of CGBSs vary considerably, and their weights range from 3000 to 1.2 million tons with corresponding topsides weighing between 650 and 52,000 tons.

A typical CGBS has a concrete base (often called a caisson) with one or more shafts to support the topside platform. When empty, voids within the base known as cells (along with the hollow shafts) provide buoyancy during the latter stages of construction, tow-out, and installation. When a CGBSis in operation, the cells...

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References

  • Collins MR, Vecchio FJ, Selby RG, Gupta PR (1997) The failure of an offshore platform. Concr Int Detroit 19:28–36

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  • Sharp JV (1979) The use of steel and concrete in the construction of North Sea oil production platforms. J Mater Sci 14(8):1773–1799

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  • Tijsen J (2015) Experimental study on the development of abrasion at offshore concrete structures in ice conditions. Delft University of Technology, Delft

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  • Whittaker D (1987) Seismic performance of offshore concrete gravity platforms

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Author information

Authors and Affiliations

  1. Shanghai Jiao Tong University, Shanghai, China

    Junfeng Liu

Authors
  1. Junfeng Liu
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Correspondence to Junfeng Liu .

Editor information

Editors and Affiliations

  1. Hadal Science and Technology Research Center, Shanghai Ocean University, Shanghai, China

    Weicheng Cui

  2. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China

    Shixiao Fu

  3. School of Marine Science and Technology, Newcastle University, Newcastle, UK

    Zhiqiang Hu

Section Editor information

  1. School of Engineering, Newcastle University, Newcastle upon Tyne, UK

    Zhiqiang Hu Ph.D

  2. Shanghai Engineering Research Center of Hadal Science and Technology, Shanghai Ocean University, Shanghai, China

    Weicheng Cui

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Liu, J. (2020). Concrete Platform. In: Cui, W., Fu, S., Hu, Z. (eds) Encyclopedia of Ocean Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-6963-5_8-1

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  • DOI: https://doi.org/10.1007/978-981-10-6963-5_8-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-6963-5

  • Online ISBN: 978-981-10-6963-5

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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