Open-Frame Post Foundation Using FRP Fins for Stable Ground Support
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Solution Overview
Problem
Existing anchor systems for vertical structures like signs and posts are inefficient in providing stable support and often require materials that degrade over time, especially when exposed to the elements.
Innovation Solution
An open-frame foundation apparatus made of fiber-reinforced polymer, comprising a hollow tube with radially extending fin members and a quadrilateral prism member, which is designed to anchor the structure into the ground or serve as a base, using a combination of materials that resist degradation and distribute forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional anchor systems are used for vertical structures, then installation is simple, but stability and durability are insufficient due to material degradation
Solution Approach 1:
The patent applies composite materials by combining fiber-reinforced polymer with traditional concrete or metal components. The fiber-reinforced polymer provides tensile strength and corrosion resistance, while the concrete or metal provides compressive strength and structural support. This composite approach resolves the contradiction by creating an anchor system that maintains stability over time without degrading, thus improving both reliability and durability simultaneously.
Solution Approach 2:
The patent changes the material parameters by using fiber-reinforced polymers with specific fiber types (glass, carbon, aramid) and matrix materials designed to resist environmental degradation. This parameter change from traditional materials to advanced composites ensures the anchor system maintains its mechanical properties and structural integrity over extended periods, resolving the durability issue while preserving stability.
2Strength
If more material is used to improve stability, then support strength increases, but material usage and cost increase
Solution Approach 1:
The patent uses fiber-reinforced polymer composites which provide high strength-to-weight ratio and high strength-to-volume ratio. The fiber reinforcement (glass, carbon, or aramid) embedded in the polymer matrix delivers exceptional tensile and compressive strength with minimal material quantity. This resolves the contradiction by achieving high support strength without proportionally increasing material usage, as the composite structure efficiently utilizes each unit of material.
Solution Approach 2:
The patent segments the anchor system into distinct functional components: the fiber-reinforced polymer foundation element, the vertical support structure, and the connection interface. Each segment is optimized for its specific function, allowing the system to achieve overall high strength through efficient material distribution rather than uniform material addition throughout the entire structure.
Data Source
AI summary
An open-frame foundation apparatus for post support includes a hollow tube that includes a wall having an outer surface. The apparatus includes four fin members, each having a quadrilateral shape. A respective first edge of each fin member is attached to the outer surface of the wall of the hollow tube. Each fin member extends radially away from the outer surface of the wall of the hollow tube. The apparatus includes a quadrilateral prism member surrounding the hollow tube and the four fin members. A second edge of each fin member is attached to a corresponding edge of the quadrilateral prism member. Two adjacent fin members are connected by two other edges of the quadrilateral prism member.