EPS Building Assemblies With Spline Joints for Airtight Construction
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Solution Overview
Problem
There is a need for more efficient and sustainable methods in building construction that utilize expanded polystyrene (EPS) to create durable, energy-efficient, and quickly constructed affordable housing, while minimizing material waste and labor costs.
Innovation Solution
The use of a hot wire cutter to create EPS components with spline and groove arrangements, one-piece corner and combination one-piece corner designs, and magnesium oxide facing boards to enhance structural integrity and airtightness, along with a method for precise assembly using die-cut floor plans and adhesive application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional separate components are used for walls and floors, then assembly flexibility is maintained, but infiltration paths increase and assembly time increases
Solution Approach 1:
The patent combines wall and floor components into integrated assemblies where the wall component and floor component are pre-connected as a single unit. This merging eliminates the infiltration paths that would exist between separate components and reduces assembly time by installing the entire assembly as one piece rather than assembling multiple separate components on-site.
2Ease of manufacture
If multiple separate components are used, then adaptability is maintained, but device complexity increases and labor costs increase
Solution Approach 1:
The patent designs universal assemblies that can serve multiple functions and configurations. The integrated wall-floor assemblies are designed to accommodate different building layouts and requirements while maintaining the same basic construction approach, reducing the need for multiple specialized component types and reducing labor costs through standardized installation procedures.
3Manufacturing precision
If precise alignment is achieved through multiple components, then manufacturing precision is improved, but assembly time increases and alignment errors accumulate
Solution Approach 1:
The patent performs alignment and positioning actions in advance during the manufacturing of the integrated assemblies. The wall and floor components are pre-aligned and secured as a unit at the factory, ensuring precise alignment is achieved before the assembly reaches the construction site. This preliminary action eliminates the need for time-consuming on-site alignment work and prevents accumulation of alignment errors that would occur with multiple separate components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces material waste, labor, and logistical complexities, enabling faster assembly with improved structural strength, airtightness, and energy efficiency, while minimizing environmental impact and potential infiltration paths.
Implementation Method 1
The hot wire is pressed through the EPS block in a controlled fashion, melting the EPS as it goes, resulting in controlled cuts to separate EPS components from the block.
Implementation Method 2
MgO board is mounted to cover the seams that result from the joining of the EPS components
Data Source
AI summary
Building techniques and structures to fabricate components of expanded polystyrene (EPS) for assembly into a building include structures and ways to make keys to provide shear strength between components, structures and ways to minimize infiltration paths between walls and floors and walls and roof while reducing labor, material wastage and logistics complications. By way of example, components are strategically cut from a block of EPS using a hot wire moving through the block to cut components to a desired and novel configuration.