Precast Wind Turbine Foundation Segmentation
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Solution Overview
Problem
Existing wind turbine foundation structures are dependent on ground conditions, requiring redesigns when conditions change, leading to increased time and cost due to the need for size modifications in ribs or post-tensioned concrete beams.
Innovation Solution
A precast foundation structure for wind turbines with a homogenized design for the transition structure, where the footing dimensions adjust based on ground quality without altering the rest of the foundation, using precast concrete ribs that extend radially from a plinth, allowing adaptability to geotechnical conditions without full redesign.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the foundation structure is designed to adapt to different ground conditions, then the adaptability is improved, but the complexity of redesigning the entire foundation increases
Solution Approach 1:
The foundation is divided into two independent segments: a standardized transition structure (with plinth and ribs) and a variable footing. This segmentation allows the footing to be redesigned for different ground conditions without affecting the transition structure, thereby improving adaptability while reducing overall redesign complexity.
Solution Approach 2:
The transition structure is designed as a universal component that can be reused across different ground conditions. By making this portion multi-functional and ground-condition-independent, the patent reduces redesign complexity while maintaining adaptability through the variable footing.
2Adaptability or versatility
If the size of ribs or post-tensioned concrete beams is changed to match ground conditions, then the adaptability to ground conditions is improved, but the manufacturing time and cost increase
Solution Approach 1:
By separating the foundation into a standardized transition structure and a variable footing, the patent eliminates the need to redesign and remake the entire foundation when ground conditions change. Only the footing requires modification, significantly reducing manufacturing and redesign time.
Solution Approach 2:
The transition structure is pre-designed and standardized in advance, independent of ground conditions. This preliminary action allows for pre-manufacturing and reuse, eliminating repeated redesign cycles and reducing overall project time.
3Adaptability or versatility
If the entire foundation is redesigned when ground conditions change, then the adaptability to ground conditions is improved, but the cost increases
Solution Approach 1:
The foundation is segmented into a reusable transition structure and a variable footing. This segmentation ensures that only the footing materials need to be adjusted for different ground conditions, reducing overall material consumption and manufacturing costs compared to redesigning the entire foundation.
Solution Approach 2:
The standardized transition structure can be recovered and reused across multiple installations with different ground conditions. Only the footing portion is discarded or modified, significantly reducing material waste and manufacturing costs.
Data Source
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Figure 3
AI summary
The present invention relates to a precast foundation structure for a wind turbine that is independent of the type of ground since a large part of the precast foundation structure is homogenized and wherein the size of a transition structures does not change when the ground conditions do since the precast foundation structure for a wind turbine easily adaptable to the geotechnical conditions of each wind turbine position of the windfarm which allows a significant reduction in time and cost.