Adjustable Edge Shuttering for Precast Concrete
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Solution Overview
Problem
Existing edge formwork devices for producing slab-shaped precast concrete parts require time-consuming assembly and struggle with easy detachment from cast parts, especially when reinforcement protrudes beyond the concrete element, leading to difficulties in removal and type changes.
Innovation Solution
The design features rails on the rear wall of basic formwork elements for horizontal mounting of additional formwork elements, allowing for adjustable and removable formwork without anchoring to the cast part, along with profiled formwork element strips that accommodate protruding reinforcement and can be made of reusable materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional formwork elements are anchored to the cast precast concrete part, then the formwork is securely fixed, but detachment becomes difficult and time-consuming
Solution Approach 1:
The formwork system is divided into basic formwork elements and additional formwork elements that can be independently assembled and disassembled. The additional formwork elements are attached to the basic formwork elements rather than being permanently anchored to the concrete part, enabling easy detachment while maintaining secure fixation during casting.
Solution Approach 2:
The formwork system transitions from a static, permanent anchoring system to a dynamic, adjustable system. The additional formwork elements can be easily attached and detached from the basic formwork elements, allowing for quick setup and teardown without time-consuming detachment operations.
2Adaptability or versatility
If steel frames with openings are used for protruding reinforcement, then the formwork accommodates reinforcement, but complete renewal is required for type changes
Solution Approach 1:
The formwork system is segmented into modular basic formwork elements and additional formwork elements. This modularity allows for easy reconfiguration and adjustment without requiring complete renewal of the entire formwork system when reinforcement types change.
Solution Approach 2:
The formwork system becomes dynamic and adjustable, allowing the additional formwork elements to be repositioned or removed based on reinforcement requirements. This enables adaptability to different reinforcement types without time-consuming complete renewals.
3Length of stationary object
If additional formwork elements are used to expand edge shuttering height, then the formwork achieves desired height, but assembly becomes time-consuming
Solution Approach 1:
The formwork height is achieved through segmentation into basic formwork elements and stackable additional formwork elements. These elements are designed for quick assembly without time-consuming operations, maintaining the desired height while enabling rapid setup.
Solution Approach 2:
The formwork system allows for dynamic adjustment of height by adding or removing additional formwork elements. This modular approach enables quick assembly and adjustment to achieve the desired height without time-consuming procedures.
4Adaptability or versatility
If formwork is designed to accommodate protruding reinforcement, then reinforced precast concrete parts can be produced, but detachment from cast parts becomes difficult
Solution Approach 1:
The formwork system is segmented into basic formwork elements and additional formwork elements that can be easily detached. This segmentation allows the formwork to accommodate protruding reinforcement during casting while enabling easy detachment after casting without difficulty.
Solution Approach 2:
The basic formwork elements serve as an intermediary structure that supports the additional formwork elements and provides a clean detachment interface. This intermediary design allows the formwork to fulfill its function of accommodating reinforcement while maintaining ease of detachment from the cast parts.
Data Source
Figure 1
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AI summary
The invention relates to an edge shuttering device which is used for the production of plate-shaped precast concrete parts (10), comprising base shuttering elements (22), which can be fixed on a forming table (24) and have a form panel (26) and a rear panel (28) which is directed away therefrom, and additional shuttering elements (30) which are aligned in parallel to the base shuttering elements (22) aligned and are attached thereon. According to the invention, it is provided that the additional shuttering elements (30) are horizontally adjustable at right angles to the base shuttering elements (22), for which purpose they can be displaced on rails (36), which project from the rear panel (28) of the base shuttering elements (22).