Offshore wind turbine supporting structure: Fid-Bau Portal

Offshore wind turbine supporting structure

MA HUIHUAN / SUN KAI / GUO CHENGCHAO / WANG FUMING

The invention relates to the technical field of offshore wind power, in particular to an offshore wind turbine supporting structure which is characterized in that the lower end of a jacket is fixedly connected to a seabed, a supporting column is connected to the jacket through a spherical hinge support, a plurality of inclined strut assemblies surround the peripheral side of the supporting column, and the upper end of each inclined strut assembly is connected with the middle of the supporting column; each inclined strut assembly comprises a first elastic supporting piece and a second elastic supporting piece which are obliquely arranged up and down, and the upper ends of the first elastic supporting pieces and the upper ends of the second elastic supporting pieces are close to each other and hinged to the middle of the supporting column. The lower ends of the first elastic supporting pieces and the lower ends of the second elastic supporting pieces are far away from each other and are hinged to the jacket, so that restraining force in the radial direction of the supporting column and in the tangential direction of the periphery of the supporting column is applied to the supporting column, and the supporting column is kept balanced when subjected to bending and torsional loads. Fatigue fracture caused when a fixed connection node is adopted between the supporting column and the jacket is avoided.

本发明涉及海上风电技术领域，特别是涉及一种海上风机支撑结构，导管架的下端固定连接在海床上，支撑柱通过球铰支座连接在导管架上，支撑柱的外周侧环绕有多个斜撑组件，各斜撑组件的上端均与支撑柱的中部连接，各斜撑组件均包括上下倾斜布置的第一弹性支撑件和第二弹性支撑件，各第一弹性支撑件的上端和各第二弹性支撑件的上端相互靠近且均与支撑柱的中部铰接，各第一弹性支撑件的下端和各第二弹性支撑件的下端相互远离且均铰接在导管架上，从而向支撑柱施加沿支撑柱的径向和沿支撑柱的外周切向的约束力，使得支撑柱在受到弯曲和扭转载荷时保持平衡，避免了支撑柱与导管架之间采用固定连接节点时的疲劳断裂。

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