Column Cap Connector with Integral Tabs for Stable Installation
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Solution Overview
Problem
Existing steel connectors for joining posts to beams often compromise the integrity of the seat or web while not maximizing material usage, and are difficult to install.
Innovation Solution
A connector design featuring projecting tabs on the top of the post to stabilize during installation, with attachment legs formed from the web and side walls, allowing for increased material usage and enhanced strength, and a design that allows the tabs to bend out of the way during final assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional channel-shaped connectors are used with legs bent from the seat, then the connector can attach to the post, but the material usage is not maximized and the integrity of the seat is compromised
Solution Approach 1:
The connector is segmented into distinct functional zones: the seat portion that maintains integrity and bears the beam load, and the leg portions that are separately formed from the side walls to attach to the post. This segmentation allows each part to be optimized for its specific function without compromising the other.
Solution Approach 2:
The attachment legs are extracted from the side walls of the channel, forming as separate elements that bend down to grasp the post. This extraction allows the seat to retain its full material thickness and structural integrity while the legs are formed from the side wall material, maximizing overall material usage without compromising the seat.
2Ease of operation
If projecting tabs are added to hold the connector on the post during installation, then installation is simplified, but the device complexity increases
Solution Approach 1:
The projecting tabs are pre-formed as integral parts of the connector during manufacturing. These tabs automatically engage with the post when the connector is placed on it, providing preliminary positioning and stabilization during installation without requiring additional components or complex assembly steps.
Solution Approach 2:
The projecting tabs are merged with the seat or web of the connector as a single integrated component. This combination eliminates the need for separate positioning devices while maintaining the simplicity of the overall connector design, as the tabs are formed from the same material and can be created during the same forming process.
3Quantity of substance
If attachment legs are formed from the web material, then material usage is maximized, but the strength of the web may be reduced
Solution Approach 1:
The connector exhibits local quality variations where the seat portion maintains full material thickness for maximum bearing strength, while the leg portions are formed by bending and shaping the side wall material. This localized differentiation allows the web/seat to retain its full strength characteristics while still maximizing overall material utilization through the integrated leg formation.
Data Source
AI summary
A column cap connector for mounting and securing a beam to a post of a building including a central web portion and upwardly extending walls disposed along longitudinal edges thereof, wherein a lower portion of the beam fits within the walls, downwardly extending legs formed from the seat and alternatively from the seat and the walls of the connector attach the connector to the post with projecting tabs attached to the seat to support the connector on the post.