Screw Anchor Foundations for Modular Structures
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Solution Overview
Problem
Modular and prefabricated construction methods face inefficiencies in foundation construction, requiring extensive on-site work, labor, and varying quality due to disconnect between centralized manufacturing and distributed site preparation, leading to poor connections and increased costs.
Innovation Solution
The EARTH TRUSS system, comprising A-frame-shaped truss foundations with screw anchors and pre-cast concrete slabs, allows for rapid, precise, and waterproof foundation assembly with minimal site preparation, enabling centralized manufacturing and shipping of foundation components for quick on-site assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional distributed foundation construction methods are used, then local adaptability is achieved, but manufacturing precision and connection quality deteriorate due to hand tools and varying site conditions
Solution Approach 1:
The foundation system is divided into modular precast concrete elements with standardized interfaces, allowing centralized precision manufacturing while maintaining adaptability through modular assembly. Each module can be independently manufactured with high precision using automated equipment, then assembled on-site to accommodate various site conditions.
Solution Approach 2:
A universal foundation module design is implemented that can serve multiple structure types and site conditions through standardized connection interfaces. The modular system provides multi-functionality by adapting to different soil conditions, building types, and site requirements while maintaining consistent manufacturing precision through standardized production processes.
2Productivity
If extensive on-site foundation preparation is performed, then site adaptability is achieved, but construction time and labor costs increase
Solution Approach 1:
Foundation elements are pre-prepared and pre-assembled in centralized facilities before delivery to the construction site. This preliminary action includes manufacturing precision, initial quality control, and pre-assembly of modular components, which significantly reduces on-site preparation time and accelerates overall construction productivity.
Solution Approach 2:
The modular precast system skips traditional time-consuming on-site foundation preparation steps such as extensive formwork, rebar tying, and concrete curing by delivering pre-manufactured foundation elements that can be rapidly installed, thereby rushing through the foundation construction phase and improving productivity.
3Manufacturing precision
If centralized factory construction is used for modular structures, then manufacturing precision is improved, but on-site foundation connection quality deteriorates due to disconnect between manufacturing and site preparation
Solution Approach 1:
The foundation modules and structural components are manufactured using the same centralized factory processes, ensuring homogeneous quality standards, materials, and precision levels across all elements. This eliminates the disconnect between structure and foundation manufacturing, as both are produced under identical controlled conditions with consistent quality assurance protocols.
Solution Approach 2:
The foundation system and structural components are designed as an integrated assembly produced in the same centralized facility. This merging of foundation and structure manufacturing ensures coordinated design, consistent quality control, and reliable connections, eliminating the reliability issues caused by separate manufacturing processes and improving overall connection quality.
4Adaptability or versatility
If multiple regional contractors are hired for foundation work, then local expertise is utilized, but project coordination complexity and costs increase
Solution Approach 1:
The standardized modular foundation system provides universal adaptability to various site conditions through its modular design and standardized interfaces, eliminating the need to hire multiple specialized regional contractors. A single coordinated team can install the universal modules across different site conditions, reducing coordination complexity while maintaining versatility.
Solution Approach 2:
The foundation system uses standardized parameters and dimensions that can be adapted to different site conditions through configuration rather than customization. This allows a single contractor team to handle various site requirements by adjusting module arrangements and configurations, rather than requiring multiple specialized contractors with different expertise.
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 simplifies and accelerates foundation construction, reducing labor and site preparation needs, ensuring consistent quality and cost-effectiveness across various site conditions, and aligning with the precision and efficiency of prefabricated structure manufacturing.
Implementation Method 1
a rotary driver is used to rotate the screw anchors into the ground
Implementation Method 2
screw anchors...secured to a building structure
Data Source
AI summary
A foundation system for manufactured homes, prefabricated houses, and other structures. Multiple screw anchors are driven into the ground at the desired location of the structure. Preformed grade bars may be placed over the screw anchors to provide a modular foundation without pouring concrete or digging footers. Alternatively, adapters may be attached to one or more of the driven screw anchors to provide a pedestal to receive the grade bar or prefabricated sections of concrete.