Offshore fan supporting structure and construction method thereof

Abstract

The invention relates to an offshore fan supporting structure and a construction method thereof. The offshore fan supporting structure comprises a main body mechanism, a supporting platform and a transition mechanism. The offshore fan supporting structure is great in integral rigidity, can be suitable for water path of 60 m, and is beneficial for improving applicability and reliability of an offshore fan foundation. Each foundation structure of the supporting structure can be constructed on land, so that foundation mounting can be completed by only needing to grouting on sea, offshore operation time is reduced, and construction cost is reduced. A main cylinder of the transition mechanism is connected through four diagonal bracings, the tops of the diagonal bracings are connected with the main cylinder, and the bottoms of the diagonal bracings are connected with leg cylinders, so that great bending moment of the fan is reasonably converted into axial force of diagonal bracings, and therefore, fatigue performance of the area is improved.

Description

technical field [0001] The invention relates to the field of offshore wind turbines, in particular to an offshore wind turbine support structure and a construction method thereof. Background technique [0002] Offshore wind turbine foundation is an important supporting structure for wind power generation equipment in offshore wind farms. Offshore wind power is an important clean energy, because it has the characteristics of high wind speed, stable wind frequency, small shear, rich resources, no land occupation, suitable for large-scale development, etc., and offshore wind power is close to economically developed areas, far away from power load The center is close, the power consumption capacity is strong, and there are no problems such as access and power limitation, etc., and it has developed rapidly in recent years. [0003] The supporting structure of offshore wind power generation equipment consists of a tower and a lower supporting infrastructure. The foundation struc...

AI Technical Summary

Problems solved by technology

[0004] The investment in the foundation of offshore wind turbines often accounts for about 30% of the total investment. With the increase of water depth and the increase of the single unit capacity of wind power equipment, the size and wall thickness of the wind turbine foundation will also become larger and larger, resulting in excessive materials for important nodes and Local processing is very difficult

Since offshore engineering construction operations are subject to the climate window, long offshore operation time will increase the cost of offshore construction

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