Unitary barrel of steel plate and concrete composite structure, unitary group barrel, and offshore platform

摘要

A unitary barrel of a steel plate and concrete composite structure, a unitary group barrel, and an offshore platform. The unitary barrel comprises: a concrete outer barrel comprising an outer barrel body and, arranged at two ends of the outer barrel body, a sealing head and a connection structure; a steel inner barrel comprising an inner barrel body and epitaxial structures arranged at two ends of the inner barrel body, where the inner barrel body is connected to the outer barrel body via the epitaxial structures; and, an insulation layer constituted by a gap between the steel inner barrel and the concrete outer barrel, where the insulation layer has filled therein an insulation medium. The unitary group barrel is constituted by one or at least two unitary barrels. The offshore platform comprises the unitary barrel. The unitary barrel has a high structural strength, low construction and building difficulty, and reduced complexity.