This paper presents the experiment of a prestressed high strength lightweight concrete platform model with a tank and five steel-columns. This platform can not only extract but also reserve oil and is suitable for use in the Bo-Sea and other shallow seas of China. The platform is subjected to temperature, load, or both. The corresponding temperature distribution, strains, cracks, and vulnerable parts of the platform are analyzed respectively. By using the finite element method and empirical formulas, the temperature field of the model is analyzed. Results agree with the experiment results, thereby verifying the reliability of these two calculating methods. The paper provides an experimental basis for the design of the bearing capacity and normal service state of prestressed concrete platforms.
In the north of Liao-dong gulf of China, there lie many oil fields, which are located in very shallow water and near to shore. The oil production of each well is not high, yet the whole production of these wells is important for China. In order to exploit this kind of oil resource, it is necessary to develop a platform that should have some advantages, such as multi-function (extraction, storage), shallow draft, mobility, durability, low manufacturing cost, low maintenance cost, and so on. For this purpose, a prestressed high strength lightweight concrete platform with a tank and five columns is designed, whose volume is 1000m 3, and its diameter and height are 28m and 4.2m respectively. As we know, some concrete platforms have been built in the North Sea of Europe and some other countries, but most of them are located in the seas whose depths are more than 10 meters.
