Dovetail Decking Sidelap Structure for Stronger Panel Connections
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Solution Overview
Problem
Existing structural panels in building construction lack sufficient strength and stability, particularly in seismic and high-wind regions, due to inadequate sidelap connections that allow for excessive movement and displacement between panels, compromising structural integrity.
Innovation Solution
The use of structural dovetail panels with proximal and distal edges featuring top flanges and arms that create a dovetail sidelap, restricting movement and allowing for reduced panel thickness and coupling, while enabling the use of anchors within the sidelap cavity for enhanced strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional panel connections are used, then installation is simpler, but structural strength and stability are insufficient
Solution Approach 1:
The panel connection is divided into modular components: a male portion with protruding flange and arm on one panel, and a female portion with recess and receiving arm on the adjacent panel. This segmentation allows for standardized, pre-fabricated connection elements that simplify installation while providing robust structural strength through the interlocking geometry of the segmented components.
Solution Approach 2:
The connection design features nested geometric relationships where the male portion's flange and arm fit within and engage with the female portion's recess and receiving arm. The dovetail geometry creates a nested configuration where components interlock in a hierarchical manner, providing structural strength through the nested engagement while maintaining relatively simple individual component designs.
2Loss of substance
If panel thickness is reduced to lower material costs, then material usage decreases, but structural strength and stability are compromised
Solution Approach 1:
The connection system creates a composite structural assembly where multiple panels are joined through the dovetail sidelap connection with anchors. This composite action allows thinner individual panels to achieve the required structural strength when connected, as the load is distributed across the composite assembly rather than relying on the strength of a single thick panel.
Solution Approach 2:
Anchors serve as intermediary elements that transfer and distribute loads between the connected panels. The anchors engage with both the male and female portions of the sidelap connection, providing a mechanical intermediary that enables thinner panels to achieve sufficient structural strength through the anchored connection system rather than requiring thick panels alone.
3Reliability
If anchors are used within the sidelap cavity to enhance strength, then structural stability improves, but the design and installation become more complex
Solution Approach 1:
The male and female portions of the sidelap connection are pre-configured with built-in features (protruding flange, recess, arms) that guide and prepare the connection geometry before anchor installation. This preliminary configuration ensures proper alignment and positioning, making the subsequent anchor installation straightforward and reducing the complexity of the overall manufacturing and installation process.
Solution Approach 2:
The connection design provides localized structural enhancement at the sidelap interface through the male and female portions, creating a reinforced connection zone. This local quality improvement at the connection point allows anchors to be effectively installed in specific locations within the sidelap cavity, providing targeted structural stability without requiring complex modifications throughout the entire panel structure.
4Stability of the object's composition
If the dovetail sidelap design is implemented, then movement restriction and structural integrity improve, but the manufacturing process becomes more complex
Solution Approach 1:
The dovetail sidelap connection is divided into separate male and female portions that can be manufactured independently using standard roll-forming and break-forming processes. This segmentation allows each portion to be manufactured using conventional equipment and techniques, avoiding the need for complex integrated manufacturing processes while achieving the movement-restricting dovetail geometry through the assembled connection.
Data Source
AI summary
Structural dovetail decking panel systems that utilize dovetail decking panels with a proximal edge having a proximal arm extending outwardly away from the dovetail decking panel, and a distal edge having a distal arm extending inwardly towards the dovetail decking panel. When adjacent dovetail decking panels are joined, the proximal edge having the proximal arm of a panel is placed over the distal end having the distal arm of the adjacent panel to create a dovetail sidelap. The proximal arm and/or the distal arm aid in restricting movement of the proximal edge and the distal edge of adjacent panels in order control the dimensions of a sidelap cavity and opening in the dovetail sidelap, which improves the strength of the dovetail decking panel systems, allows for the reduction of the thickness of the panels or number of couplings used, and/or allows for anchors to be utilized within the sidelap cavity.