Timber Wall Stud with Metal Struts for Thermal Resistance
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Solution Overview
Problem
Conventional timber wall constructions require thicker stud timbers for deeper insulation, increasing costs and weight, while also needing stronger support and more complex installation of insulation and building services.
Innovation Solution
A timber stud design featuring two parallel elongate timber posts joined by metal struts with three conjoined sections, forming a cross shape, allowing for increased wall thickness without thicker timbers, and accommodating insulation and services within the stud cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If thicker insulation is incorporated into walls to reduce CO2 emissions and meet building regulations, then thermal resistance is improved, but wall depth increases requiring thicker stud timbers which increases cost and weight
Solution Approach 1:
The patent combines timber posts with metal struts to create a composite wall stud structure. The metal struts provide the necessary structural strength for deeper walls without requiring thicker timber, thus achieving better thermal resistance through increased wall depth while avoiding the weight and cost penalties of thicker timber studs.
Solution Approach 2:
The wall stud is segmented into distinct functional components: timber posts for partial structural support and insulation mounting, and metal struts for providing diagonal bracing and structural rigidity. This segmentation allows each material to be optimized for its specific function, enabling deeper walls without proportionally increasing timber dimensions.
2Loss of energy
If thicker insulation is incorporated into walls to reduce CO2 emissions and meet building regulations, then thermal resistance is improved, but wall depth increases requiring thicker stud timbers which increases cost
Solution Approach 1:
The composite timber-metal construction allows the use of standard-size timber posts combined with relatively inexpensive metal struts to achieve the structural requirements for deeper walls. This avoids the need for expensive thick timber while meeting both thermal performance and structural cost requirements.
3Loss of energy
If thicker insulation is incorporated into walls to reduce CO2 emissions and meet building regulations, then thermal resistance is improved, but wall depth increases requiring stronger support
Solution Approach 1:
The metal struts are pre-formed with diagonal geometry and attachment features that provide structural reinforcement before the wall is fully assembled. This preliminary structural reinforcement enables the wall to achieve greater depth for insulation without requiring proportionally stronger timber posts.
4Strength
If conventional thicker timbers are used for deeper walls, then structural strength is improved, but weight increases making transport and handling more difficult
Solution Approach 1:
The patent replaces heavy thick timber with a composite structure using standard timber posts and thin metal struts. The metal struts provide the necessary diagonal bracing strength without the weight penalty of thick timber, significantly reducing the overall weight of wall components for easier transport and handling.
5Strength
If conventional thicker timbers are used for deeper walls, then structural strength is improved, but cost increases due to transport and handling difficulties
Solution Approach 1:
The composite construction using standard timber and thin metal struts creates components that are lighter and easier to transport and handle compared to thick timber alternatives. This reduces logistics costs while maintaining the structural strength necessary for deeper insulated walls.
Data Source
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AI summary
A stud for use in timber frame walls comprising two parallel elongate timber posts joined together by at least a pair of struts, each strut having three conjoined sections comprising a first short section, a second longer section connected at an obtuse angle to the first section and a third short section connected to the second section at an obtuse angle and being generally parallel to the first section, with the first and third sections of each strut fixed to and parallel with the respective timber post so that the second sections form a bridge between the timber posts, and wherein the two struts are on opposing elongate faces of the timber posts.