Modular Precast Slab Foundations with Pile-Seated Thermal Breaks
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Solution Overview
Problem
Existing construction methods for foundations and floors are slow, lack tight tolerances, and struggle with achieving desired levels of stressing and tensioning, especially when implementing thermal breaks, limiting their use to flat sites and requiring extensive ground disruption.
Innovation Solution
A modular precast concrete slab system with plinths extending from the slab, designed to complement and seat into recesses within piles, incorporating insulating layers for thermal breaks, and using pre-stressed concrete panels that are post-tensioned for enhanced flexibility and resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional in-situ pouring methods are used, then flexibility and adaptability are improved, but construction speed and precision are reduced
Solution Approach 1:
The invention divides the foundation system into separate modular components: precast concrete slabs with integrated plinths, individual piles, and insulation layers. These segments are manufactured off-site with high precision and assembled quickly on-site, resolving the contradiction between flexibility (achieved through modular assembly) and construction speed (improved by pre-manufacturing components).
Solution Approach 2:
The plinths are pre-formed as integral parts of the slabs during off-site manufacturing, and insulation layers are pre-installed between plinths and piles. This preliminary preparation eliminates time-consuming on-site construction activities while maintaining adaptability through the modular nature of the pre-assembled units.
2Object-affected harmful factors
If traditional in-situ pouring is used, then thermal breaks can be implemented, but construction time and complexity increase
Solution Approach 1:
Insulation layers are pre-installed between the plinths and piles during off-site preparation, rather than being installed on-site during construction. This preliminary action achieves the required thermal break while significantly reducing on-site construction time and simplifying the installation process.
3Manufacturing precision
If in-situ concrete pouring is used, then ground disruption is minimized, but precision and tolerance are reduced
Solution Approach 1:
The system separates the precision-critical components (slabs and plinths) from the ground interaction elements (piles). The modular slabs with integrated plinths are manufactured off-site with tight tolerances in a controlled environment, while the piles handle ground disruption. This segmentation achieves high precision without requiring complex ground preparation.
4Productivity
If modular precast slabs with plinths are used, then installation speed and precision are improved, but structural complexity increases
Solution Approach 1:
The plinths are merged with the slabs as integral components, forming a single precast unit. This combination simplifies the assembly process by eliminating separate installation steps for plinths and slabs, thereby improving installation speed while the modular nature manages structural complexity through standardization.
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
The system allows for rapid installation with high tolerances, provides thermal insulation, minimizes ground disruption, and enhances seismic resilience, reducing construction time and costs while maintaining consistent quality and flexibility.
Implementation Method 1
an insulating layer between each plinth and pile, the insulating layer configured to provide a thermal break between the pile and plinth
Data Source
AI summary
A modular slab, slab system, piles and methods of use thereof are described along with specific applications and methods of manufacture. The slab or slab system may be pre-insulated and pre-finished before being assembled on site. The slab system may be advantageous to use as a replacement for traditional in-situ poured building foundations. The slab system may also have uses in other fields such as for floors, roads, bridges, pavements/side walks and other civil and structural applications.