Truss foundation adapters for single-axis trackers
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Solution Overview
Problem
The complexity of constructing multi-component truss foundations for single-axis trackers increases installation time and complexity, which can negate the weight and depth savings potential of truss foundations, while requiring accurate alignment of below-ground and above-ground components.
Innovation Solution
The use of universal Y-shaped truss adapters that combine the functionality of screw anchors and upper legs, featuring adjustable coupling assemblies and geometric designs allowing for angular adjustability and simplified installation, enabling faster and more accurate alignment without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If multi-component truss foundations are constructed to achieve weight and depth savings, then material efficiency improves, but installation complexity increases
Solution Approach 1:
The patent combines multiple separate truss components (below-ground legs, above-ground legs, and adapters) into a simplified assembly system where pre-fabricated adapter assemblies are installed as single units. This merging approach maintains the structural benefits of multi-component trusses while reducing the number of field assembly operations required.
Solution Approach 2:
The adapter assemblies are pre-fabricated with integrated alignment features and connection mechanisms before being transported to the installation site. This preliminary preparation of components eliminates the need for complex field measurements and adjustments, allowing workers to simply assemble pre-configured units.
2Weight of moving object
If traditional multi-component truss foundations are used, then weight savings are achieved, but alignment accuracy becomes difficult to maintain
Solution Approach 1:
The patent introduces specialized adapter assemblies that serve as intermediary components between below-ground and above-ground truss legs. These adapters incorporate built-in alignment features such as guide rails, positioning pins, and adjustable mounting surfaces that actively compensate for minor misalignments in the underlying foundation elements, ensuring precise final alignment without requiring extreme precision in the foundation legs themselves.
3Strength
If complex multi-component assemblies are installed, then structural efficiency is achieved, but installation time increases
Solution Approach 1:
The patent segments the truss foundation system into distinct modular components (below-ground legs, adapter assemblies, above-ground legs) that can be manufactured, inspected, and prepared independently. Each segment is designed with standardized connection interfaces, allowing for rapid assembly like building blocks, thereby reducing overall installation time while maintaining structural integrity.
Data Source
AI summary
A one-piece truss adapter for supporting single-axis trackers with truss foundations. A y-shaped structure has a pair of legs with an angularly adjustable connector for securely joining the one-piece adapter to a pair of driven screw anchors at different angular orientations. Each leg terminates in a ball-shaped connector that is received in a socket integral to a driving coupler at the head of each screw anchor. A retaining nut holds the connector in place to complete the angularly adjustable assembly.