A transitional cylindrical foundation structure applied to ocean engineering

Abstract

The invention discloses a transition type drum-shaped base structure applicable to an ocean engineering, wherein a ring beam is arranged in the middle of a top cover of a drum-shaped base, the top of the ring beam is provided with a plurality of section steel columns which are uniformly arranged along the circumferential direction, a node connecting piece is arranged right above the center of the drum-shaped base, section steel beams are connected between the node connecting piece and the top of each section steel column, each section steel beam downwards inclines from the end connected with the node connecting piece to the end connected with the corresponding section steel column, at least one horizontal circumferential support is arranged on the section steel columns long the height direction at intervals, and the circumferential supports are respectively connected between every two section steel columns. After the transition type drum-shaped base structure is used, the larger bending moment transmitted by an upper structure can be effectively and approximately transferred into a pull force and pressure at the drum-shaped base by the section steel beams and the section steel columns, so that the maximum carrying capacity of the drum-shaped base can be played; the section steel beams are less in self weight compared with a concrete transition section, so that the use of a large-scale machine tool during construction can be reduced, the construction period can be shortened, and the offshore wind plant building cost can be reduced.

Description

technical field [0001] The invention relates to the field of basic structures of ports, oceans, water conservancy and bridge engineering, and in particular relates to a basic structure in which a new type of force transmission structure system is adopted on the upper part of a cylindrical foundation to optimize the force of the cylindrical foundation. Background technique [0002] At present, in the field of marine engineering such as offshore wind power projects, the foundation structures usually have pile foundations, gravity foundations, jacket foundations, negative pressure foundations and floating platforms, etc. These foundation structures usually require large machines for transportation and installation , resulting in higher construction costs and longer construction periods. Compared with the traditional foundation structure, the cylindrical foundation is widely used in marine engineering due to its low cost, convenient construction, safe and reliable use, and recyc...

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Problems solved by technology

[0003] However, the environment of the foundation structure of offshore wind power generation is very complex. In addition to the vertical force of the structural weight of the wind turbine tower transmitted from the superstructure, the load also includes the horizontal force and bending moment transmitted from the wind load to the foundation structure, and Waves, ocean currents, sea ice loads, etc.

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