Embedded Post Base Structure for Moisture-Resistant Anchoring
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Solution Overview
Problem
Existing connectors for anchoring posts to foundations are either costly, require welding or painting, or fail to effectively resist downward and uplift forces, and often expose the post to moisture.
Innovation Solution
A connector formed from a single sheet metal blank, embedded in concrete, with upstanding side members and flanges that support the post above the foundation surface, using self-drilling fasteners to secure the post and resist forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If U-shaped metal straps are used to anchor posts to foundation, then the post can be securely anchored, but the post is exposed to moisture from the foundation surface
Solution Approach 1:
An intermediate plate is introduced between the post and the foundation surface. The plate is fastened to the U-shaped metal straps while the post bears on the plate, which is positioned above the foundation surface. This intermediary plate prevents direct contact between the post and moisture-containing foundation surface, solving the moisture exposure problem while maintaining anchoring reliability.
2Reliability
If traditional connectors are used, then posts can be anchored to foundation, but welding or painting is required which increases cost and complexity
Solution Approach 1:
The connector is designed as a self-contained unit formed from a single sheet metal blank that includes all necessary features (U-shaped straps, intermediate plate, fastener openings) integrated into one piece. This self-service design eliminates the need for separate welding or painting operations, reducing manufacturing complexity and cost while maintaining connection strength.
Solution Approach 2:
Multiple functional elements (U-shaped straps, intermediate plate, fastener openings) that would traditionally be separate components are merged into a single integrated connector formed from one sheet metal blank. This consolidation eliminates the need for welding or painting operations and simplifies installation while maintaining the necessary connection strength.
3Adaptability or versatility
If connectors are made from multiple parts requiring assembly, then customization is possible, but installation time and complexity increase
Solution Approach 1:
Multiple functional elements are merged into a single integrated connector formed from one sheet metal blank, eliminating the need for assembly. The single-piece construction reduces installation time and complexity while maintaining the adaptability needed for different post sizes and foundation conditions through properly designed opening patterns and dimensions.
Data Source
AI summary
A connector is constructed so as to be partially embedded in a cementitious member and connect a post or other supported member to the cementitious member with the connector having a supporting member that is disposed above an upper surface of the cementitious member and supports a bottom surface of the post above the upper surface of the cementitious member, and the post is connected to side members of the connector that have portions that extend above the upper surface of the cementitious member.