3D-Printed Foundation Formwork for Faster Footing-Pedestal Construction
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Solution Overview
Problem
Existing methods for constructing structural foundations require significant initial investment, long construction periods, and face challenges in labor efficiency and quality stabilization, especially in remote or difficult-to-reach locations.
Innovation Solution
A method involving the use of a 3D printer to form an integrated formwork for both footing and pedestal, followed by supplying concrete and reinforcing bars, and optionally embedding joint members and an outer frame, to create a reinforced concrete foundation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods are used to construct foundation for structural body, then construction quality can be maintained, but construction period becomes long and labor cost increases
Solution Approach 1:
The patent combines the footing and pedestal construction into a single integrated process using 3D printing technology. The 3D printer deposits concrete continuously to form both the footing and pedestal in one operation, eliminating the need for separate formwork assembly, concrete pouring, and formwork dismantling steps that are required in traditional construction methods.
Solution Approach 2:
The patent replaces traditional mechanical construction systems (formwork assembly, manual concrete pouring, vibration compaction equipment) with a 3D printing system that uses automated robotic arms to deposit concrete layer by layer. This substitution eliminates the need for heavy formwork structures and manual labor while achieving precise geometric control.
2Productivity
If traditional construction methods are used, then structure can be built, but labor requirement increases and construction cost rises
Solution Approach 1:
The 3D printing system performs multiple construction functions automatically without requiring human intervention for formwork assembly, concrete placement, and compaction. The system self-regulates the concrete deposition process, layer-by-layer construction, and integrated curing, eliminating the need for large crews of workers and multiple types of construction equipment.
3Manufacturing precision
If separate formwork is used for footing and pedestal, then construction can proceed, but construction period extends and quality stabilization becomes difficult
Solution Approach 1:
The 3D printing system serves multiple functions simultaneously: it acts as the formwork definition system, concrete placement mechanism, and compaction device all in one integrated process. The digital model guides the entire construction process, ensuring consistent geometric precision for both footing and pedestal without requiring separate formwork systems for each component.
Data Source
AI summary
Provided is a method of constructing a foundation for a structural body, the foundation including a footing and a pedestal, the method including: a formwork formation step of forming, from concrete or mortar, a formwork being an integrated formwork for the footing and the pedestal by using a 3D printer, and a supplying step of supplying concrete into the formwork. The formwork has such a shape that a horizontal sectional area decreases from the footing toward the pedestal.