Open AccessAnalysis, design and construction of gravity offshore structure; state-of-the-art
Author(s) -
Samuel Adakole Okpe,
Joseph Ejelikwu Edeh
Publication year - 2022
Publication title -
international journal of advanced engineering, sciences and applications
Language(s) - English
Resource type - Journals
ISSN - 2703-7266
DOI - 10.47346/ijaesa.v3i1.74
Subject(s) - submarine pipeline , quake (natural phenomenon) , seismic analysis , engineering , marine engineering , civil engineering , geology , geotechnical engineering , seismology
Offshore platforms are divided into many types which are mainly categorized according to waterdepth in the installation location. However, the design differs for each type to accomplish the target of the operation. But for some case of sea waterdepths and an aggressive environment such as the North Sea, steel ones are not suitable, so the heaviest type called gravity platform having enormous mass is used. This type of platform has its special requirements and procedures for construction and needs special types of construction materials in order to resist the climate factors applied due to the aggressive environment. The paper carefully illustrates how the principal Environmental loads (wind and wave), current forces, loads from ice and loads from earth-quake for (earth-quake prone zones) are deployed to archive the design and construction of offshore concrete gravity platforms. Two design methods (Analysis and Design of Shell structures) and the Tangent Modulus Methods of design of Offshore Concrete Gravity platforms are discussed