Molded Formwork Element with Embossed Stability and Interlocking Protrusions
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Solution Overview
Problem
Conventional formwork elements for concrete structures are often unstable, costly, and difficult to assemble, leading to issues with structural integrity and high installation costs, especially when used for larger connected elements or intermediate formwork, where they may require frequent replacement due to damage or unsatisfactory sealing properties.
Innovation Solution
A single, molded formwork element made from a sheet metal or plastic with increased stability through embossing, folding, or other shaping techniques, featuring protruding sections for interlocking with concrete and integrated holding means for secure assembly, which can be reused and adapted for various applications, including ceiling edge and intermediate formwork.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional edge formwork is used for intermediate formwork, then openings for reinforcing bars must be created on-site, but the formwork becomes damaged and cannot be reused
Solution Approach 1:
The formwork element is provided with predetermined openings during manufacturing, eliminating the need for on-site creation of openings. This preliminary action prevents damage to the formwork structure that would occur during on-site drilling or cutting, thereby maintaining reusability while facilitating easy installation of reinforcing bars.
Solution Approach 2:
The formwork element incorporates a replica or model of the required opening configuration in its design phase. By copying the necessary openings into the formwork structure before use, the invention eliminates the need for destructive on-site modifications, preserving the formwork's integrity and reusability.
2Stability of the object's composition
If permanent formwork is used as intermediate formwork, then stability is improved, but installation costs and panel thickness increase
Solution Approach 1:
The formwork system is divided into modular elements that can be easily assembled and disassembled. The formwork element comprises a panel with integrated retaining clips and retaining elements that can be quickly connected and disconnected, reducing installation complexity while maintaining stability during use.
Solution Approach 2:
The formwork element incorporates movable or adjustable components such as retaining clips that can be easily attached and removed. This dynamic design allows for simple installation and removal processes while providing sufficient stability during the concrete pouring operation.
3Ease of operation
If meshes are used for intermediate formwork, then assembly is simplified, but sealing properties and structural quality become inadequate
Solution Approach 1:
The formwork element combines a panel structure with integrated retaining elements and clips to create a composite system that provides both ease of assembly and adequate sealing properties. The combination of these different components achieves the benefits of simple assembly while maintaining the structural integrity and sealing quality needed for concrete formwork.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The component (21) has a molded part (17) with a thin-walled form-stable planar structure (18) e.g. metal sheet. The molded part is formed in shape-stable, inelastic and pressure-resistant manner. The structure is provided with inner and outer sides. Recesses are formed in the planar structure. A thin layer is connected with the structure at the outer side. The planar structure is designed as plastic form part, which has a retaining unit for a retaining bracket (7).