Transportable Formwork Device for Precast Concrete
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Solution Overview
Problem
Existing formwork devices for precast concrete production are not flexible or easily transportable, requiring complex assembly and limited in their ability to adjust to different site conditions and produce varying precast concrete part sizes.
Innovation Solution
A transportable formwork device with a vertically fixed middle formwork on a mobile semi-trailer and adjustable, separately designed working platforms with rails for moving outer formwork, allowing for flexible assembly and adjustment of the concrete receiving space, including height adjustment and hydraulic counter-pressure to maintain formwork position during concrete pouring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If formwork devices are firmly anchored with stationary central core and fixed components, then structural stability is improved, but transportability and ease of assembly deteriorate
Solution Approach 1:
The formwork device is divided into separate transportable components including a mobile semi-trailer carrying the middle formwork, and separate working platforms carrying the outer formwork. This segmentation allows each component to be independently transported and assembled at the construction site, resolving the contradiction between structural stability and transportability.
Solution Approach 2:
The formwork device transitions from a static firmly anchored structure to a dynamic reconfigurable system. The mobile semi-trailer and working platforms can be moved, positioned, and assembled in different configurations at different locations, enabling the structure to adapt to various site conditions while maintaining stability during operation.
2Reliability
If formwork devices use complex firmly anchored structures, then production reliability is improved, but device complexity and assembly time increase
Solution Approach 1:
By segmenting the formwork into standardized mobile components (semi-trailer with middle formwork, working platforms with outer formwork), the system achieves reliability through proven transportable structures while reducing assembly complexity compared to custom-built firmly anchored systems.
Solution Approach 2:
The mobile semi-trailer and working platforms are designed as universal components that can be used for multiple production scenarios. The standardized interfaces and modular design allow rapid assembly and disassembly while maintaining production reliability across different applications.
3Device complexity
If formwork distance is fixed, then structural simplicity is improved, but adaptability to different precast part sizes deteriorates
Solution Approach 1:
The distance between the middle formwork on the semi-trailer and the outer formwork on the working platforms can be dynamically adjusted. The working platforms can be positioned at different distances from the semi-trailer, and the formwork within each platform can be adjusted, enabling production of various precast concrete part sizes while maintaining relatively simple structural 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
Enables rapid, flexible, and efficient assembly of formwork at any location, accommodating varying site conditions and producing precast concrete parts of different sizes while ensuring stability and compaction of concrete, with optional heating and vibration for temperature and density control.
Implementation Method 1
The formwork device has a hydraulic tensioning device which generates a hydraulic pressure
Implementation Method 2
The formwork device has a vibration device for compacting the concrete
Implementation Method 3
The heating device can be integrated into at least one formwork
Data Source
AI summary
The invention relates to a transportable formwork device for producing prefabricated concrete parts, having a vertical central formwork structure which is rigidly arranged on a movable support and having an outer formwork structure which can be moved on rails on an adjustable working platform.