Double-deck supporting connection structure of tower drum of wind driven generator and jacket foundation

Abstract

The invention discloses a double-deck supporting connection structure of a tower drum of a wind driven generator and a jacket foundation. The middle of the double-deck supporting connection structure is provided with a vertical upright post, the top and the bottom of the vertical upright post are both provided with decks containing reinforcing ribs, the vertical upright post is welded on the two decks, and the two decks are used for resisting horizontal shearing force and a bending moment which are generated during the operation of an air blower to prevent the tower drum or the vertical upright post from being deformed because of the operation of the vertical upright post; a vertical plate containing the reinforcing ribs is arranged between the two decks, the vertical plate enlarges the stress contact area of the two decks so as to reduce stress concentration, and the vertical plate can also bear a torsional moment and horizontal force which are generated during the operation of the air blower so as to generate a resisting bending moment. The double-deck supporting connection structure of the tower drum of the wind driven generator and the jacket foundation adopts the vertical plate and a horizontal plate to be respectively connected with the vertical upright post; with the structural mode, the stress concentration of the connecting position of the tower drum of the wind driven generator and the jacket foundation is reduced, and the steel using amount is reduced.

Description

【Technical field】 [0001] The invention relates to a support connection structure between a wind power generator tower and a jacket foundation, in particular to a double deck support connection structure between a wind power generator tower and a jacket foundation. 【Background technique】 [0002] With the rapid development of offshore wind power generation, especially high-power wind turbines and deep-water offshore wind farms, the jacket offshore wind turbine foundation is adopted by more and more offshore wind farms because of its light weight and convenient transportation and installation. Due to the long-term fatigue load, the design of the connection section between the wind turbine tower and the jacket foundation structure has become a key and difficult point in the design of this structural form. [0003] In the design process of wind turbine jacket foundation, the support design of the tower connection section often adopts column braces to transmit lateral bending mom...

AI Technical Summary

Problems solved by technology

In practical engineering applications, due to the small cross-section of the column braces, there will be more point-to-surface contact ratios, and this design usually causes stress concentration.

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