Precast Panel Subassemblies with Insulating Columns
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Solution Overview
Problem
Conventional building construction methods are time-consuming, requiring several weeks to construct a small multi-storey building due to the labor-intensive process of fastening various elements together.
Innovation Solution
A building system comprising panel subassemblies with thermally-insulating materials and concrete portions, secured to a foundation using threaded rods and grout, allowing for rapid assembly and connection of panels with precast concrete elements and extruded polystyrene foam columns, which are manufactured off-site for efficiency and consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional building construction methods are used with labor-intensive fastening processes, then structural integrity can be achieved, but construction time becomes excessively long (several weeks)
Solution Approach 1:
The building structure is divided into modular panel subassemblies, each comprising pre-assembled components (columns, beams, floor elements, wall panels) that can be manufactured separately and then quickly connected on-site. This segmentation enables parallel manufacturing and simplifies assembly operations, dramatically reducing construction time while maintaining structural integrity through standardized connection mechanisms.
Solution Approach 2:
Critical assembly operations are performed in advance during off-site manufacturing of panel subassemblies. Components such as concrete pouring, rebar placement, thermal insulation installation, and initial fastening are completed before delivery to the construction site. This preliminary action eliminates time-consuming on-site operations and accelerates the overall construction process.
2Strength
If panel subassemblies with integrated thermal insulation and concrete portions are used, then thermal efficiency and structural strength are improved, but manufacturing complexity increases
Solution Approach 1:
Multiple functional components (structural columns, beams, floor elements, wall panels, thermal insulation layers, and reinforcement elements) are merged into integrated panel subassemblies. This consolidation ensures proper integration of structural and thermal functions, eliminates coordination issues between separate installations, and maintains quality control through factory-controlled manufacturing processes despite the increased internal complexity of each module.
Solution Approach 2:
The panel subassemblies utilize composite construction combining concrete (for structural strength), extruded polystyrene foam or similar materials (for thermal insulation), and rebar (for reinforcement). This composite approach achieves superior performance in both structural strength and thermal efficiency while allowing each material to contribute its optimal properties within the integrated assembly.
3Productivity
If precast concrete elements and extruded polystyrene foam columns are used, then assembly speed increases, but material cost and manufacturing precision requirements increase
Solution Approach 1:
The precast concrete elements and extruded polystyrene foam columns incorporate self-aligning features such as built-in connection interfaces, positioning ribs, and tolerance-compensating mechanisms that enable workers to assemble components quickly without requiring extremely high manufacturing precision. The design allows for automatic alignment and self-correction of minor dimensional variations, maintaining fast assembly speed while reducing stringent precision requirements.
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
Enables the rapid assembly of building structures, reducing construction time and costs while meeting thermal, structural, and fire code requirements, with the system being lightweight yet strong and requiring minimal additional insulation or finishing work.
Implementation Method 1
each panel subassembly including at least one column including a thermally-insulating material
Data Source
AI summary
A plurality of panel subassemblies are used to erect a building on a footing or foundation. Each panel subassembly includes at least one column formed of a thermally-insulating material, and a concrete portion at least partially attached to the at least one column. The concrete portion may be formed as a single precast unit. The panel subassemblies are secured together and to the foundation, and may be secured to a floor element of the building to at least partially support the floor element.