Self-elevating novel latticed pile leg for ocean platform

Abstract

The invention discloses a new lattice type pile leg of a self-elevating offshore platform, comprising a pile leg body arranged in parallel with a triangle, and is characterized in that: the pile leg body comprises a square steel pipe, and the inside of the square steel pipe is arranged along the length direction The stiffening rib is welded with a circular steel pipe, the interior of the circular steel pipe is hollow with water, and the space between the square steel pipe and the circular steel pipe is filled with concrete. The novel lattice type pile legs of the self-elevating offshore platform of the invention have the characteristics of high stability, strong bearing capacity, low cost, strong corrosion resistance, excellent seismic resistance, convenient maintenance and long service life.

Description

technical field [0001] The invention relates to the technical field of offshore platform equipment, in particular to a new lattice-type leg of a self-elevating offshore platform. Background technique [0002] With the rapid development of offshore platform steel structure, its performance defects are gradually appearing. Ordinary carbon steel materials used on a large scale in steel structures are easily corroded in coastal corrosive environments, especially the supporting components of offshore platforms, which are immersed in seawater for a long time, and construction steel is especially affected by corrosive media such as seawater and marine organisms. Protruding, not only destroys the overall beauty of the offshore platform, but also weakens the section of the supporting steel member, reduces its bearing capacity, and seriously affects the safety and durability of the offshore platform. In addition, for offshore platforms that have been affected by freezing and thawing ...

AI Technical Summary

Problems solved by technology

However, on the other hand, thin-walled stainless steel components often lead to more prominent stability problems, and it is difficult to give full play to the mechanical properties of the material. It is necessary to increase the overall and local stability of thin-walled stainless steel components by adding stiffeners.

It is worth noting that for the steel pipe structures widely used in bridge engineering, tower structures and offshore platforms, in order to maintain the overall beauty of the structure, the way of strengthening with built-in stiffeners is often selected, and when the steel pipes have a small section and a long length , built-in stiffeners often bring great difficulties to construction

Images