Light Steel Stud With Double Thickness Flanges
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Solution Overview
Problem
Light steel framed structures face challenges with high thermal conductance, material inefficiency, and unsightly bumps due to thick bracing connections, which affect structural performance, fire resistance, and ease of assembly in building construction.
Innovation Solution
A light steel structural stud design featuring a web portion with flanges and flange lips of double thickness, incorporating multi-cranked stiffeners and embossments to enhance structural capacity, reduce material usage, and improve thermal insulation, while allowing for easier assembly and customization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If C-Shape sections are made thicker to suit increased loads, then structural strength is improved, but material usage increases and cost increases
Solution Approach 1:
The patent combines light steel framing with concrete to create composite wall systems. The concrete infill provides compressive strength while the steel frame provides tensile strength and structural integrity, allowing the use of thinner steel sections than would be required for steel-only construction while achieving the same or higher overall strength.
Solution Approach 2:
The wall system is divided into modular components: steel studs, concrete infill, and integrated bracing elements. This segmentation allows each component to be optimized independently - the steel provides structural framework while the concrete provides mass and compressive strength, achieving high strength with reduced total material usage through efficient division of functional roles.
2Stability of the object's composition
If C-Shape bracing connections are made three material layers thick for lateral stability, then lateral building stability is improved, but unsightly bumps occur in finished gypsum and sheathing applications
Solution Approach 1:
The bracing elements are integrated within the wall cavity rather than being attached externally. The bracing fits within the space between studs and sheathing, nested within the wall assembly structure. This eliminates protruding layers that would cause surface bumps while maintaining the bracing function for lateral stability.
Solution Approach 2:
The bracing function is merged with the wall assembly itself rather than being a separate external layer. The integrated design combines the bracing elements with the stud configuration and wall cavity, eliminating the need for multiple thick layers at connection points and maintaining a flat exterior surface for finished applications.
3Strength
If steel is used for light steel framing, then structural quality is improved, but high thermal conductance causes steel to suck in exterior temperatures different than interior temperature
Solution Approach 1:
The patent creates a composite wall system combining steel framing with concrete infill and insulation materials. The concrete and insulation layers act as thermal breaks, reducing the thermal conductance problem of steel while maintaining its structural advantages. This composite approach allows the steel to provide structural quality while the other materials address thermal performance.
Solution Approach 2:
The concrete infill and insulation materials serve as thermal intermediaries between the interior and exterior environments. These materials mediate the heat transfer that would otherwise occur directly through the steel frame, reducing thermal conductance while allowing the steel to maintain its structural function.
4Reliability
If more fasteners are used to fix and make solid the steel member, then structural reliability is improved, but assembly time and labor cost increase
Solution Approach 1:
The bracing elements are integrated into the wall assembly during the same construction process as the stud installation, combining multiple functions into a single assembly sequence. This merging of functions reduces the need for separate fastening operations while maintaining structural reliability through the integrated design.
Data Source
AI summary
A light steel structural stud includes a web portion, a pair of flanges and a pair of flange lips. The web portion has a web face and sides. The pair of flange portions each extend generally orthogonally from each side of the web portion. Each flange portion is in a plane that is generally parallel to the plane of the other flange portion. Each of the flange portions has a flange face. The pair of flange lips each extend generally orthogonally from each of the flange portions and are generally parallel to the web portion. Each flange lip has a double thickness and at least a portion of each flange portion has a double thickness.