Folded Sheet Metal Wall Section with Integrated Flanges
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Solution Overview
Problem
Existing construction methods for smaller buildings require strong but expensive and heavy materials like structural steel and concrete, and wood, which is impermanent and weak, necessitating the use of costly fasteners for load-bearing structural elements.
Innovation Solution
Structural elements formed from folded sheet metal, which integrate strength by folding the metal to create load-bearing properties, eliminating the need for many secondary posts and fasteners, and can be easily installed by bolting to pre-installed bolts in a concrete footing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If structural steel and concrete are used for load-bearing elements, then strength is improved, but weight and cost increase
Solution Approach 1:
The structural element is segmented into a modular assembly comprising a C-shaped metal section with integrated flanges and a concrete footing, allowing the load-bearing function to be distributed across multiple components rather than requiring a single heavy element
Solution Approach 2:
The invention combines metal (C-shaped section) and concrete (footing) into a composite structural assembly, where each material contributes its strengths - metal provides tensile strength and flexibility while concrete provides compressive strength and foundation stability
2Weight of stationary object
If wood is used for structural elements, then weight and cost are reduced, but strength and permanence deteriorate
Solution Approach 1:
The metal section is formed with specific geometric parameters including flange widths, thicknesses, and fold configurations that optimize its load-bearing capacity while maintaining lightweight properties, transforming simple sheet metal into a high-strength structural component
Solution Approach 2:
The C-shaped cross-section and folded flanges create curved and angled geometries that efficiently distribute loads throughout the structure, with the folds acting as built-in reinforcement similar to how curved wooden beams strengthen against bending
3Strength
If traditional fasteners are used to affix structural elements, then connection strength is improved, but device complexity and cost increase
Solution Approach 1:
The flanges are merged with the C-shaped section through folding, creating an integrated assembly where the flanges become an inherent part of the main structure rather than separate components requiring additional fasteners for attachment
Solution Approach 2:
The folded flanges serve multiple functions simultaneously - they provide structural reinforcement, create mounting surfaces, and enable direct bolting to the footing, making the structure self-sufficient without requiring separate bracing or connection elements
Data Source
AI summary
A wall section formed from sheet metal has a main panel, opposing vertical side flanges extending rearwardly from the side edges of the main panel, top and bottom horizontal flanges extending rearwardly from the panel, and stiffening flanges extending perpendicularly from the rear edges of the side, top and bottom flanges, thereby forming load bearing side beams, a header and a sill plate, the side flanges for attachment to the those of abutting wall sections to form a wall.