Panel Formwork Tie Holes Eliminate Stoppers
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Solution Overview
Problem
Conventional panel formwork systems for producing concrete walls face inefficiencies due to the need for stoppers and nut elements, which require significant effort and can lead to incorrect placement, leakage, and clogging, especially when dealing with corners and T-shaped intersections.
Innovation Solution
A panel formwork corner system with centrally aligned tie holes, allowing all tie holes to be used for anchoring without the need for stoppers, enabling flexible orientation and stronger anchoring with freely selectable tie rod diameters, and an improved anchor pattern on exposed concrete walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional edge anchorage with tie holes in the frame is used, then the formwork can be assembled, but only part of the tie holes are actually used and stoppers must be installed in unused tie holes, increasing work effort and cost
Solution Approach 1:
The invention extracts the tie holes from the frame structure and relocates them to the formlining. This allows all tie holes to be used for actual anchoring without requiring stoppers, as the tie holes are positioned in the web area where they can all accommodate tie rods regardless of panel orientation.
Solution Approach 2:
Instead of placing tie holes in the frame (edge anchorage), the invention inverts the approach by placing tie holes directly in the formlining (central anchorage). This inversion eliminates the need for stoppers and allows all tie holes to be utilized, improving both productivity and ease of operation.
2Reliability
If stoppers are installed in unused tie holes to prevent concrete leakage, then leakage is prevented, but considerable work effort is required and high costs are induced
Solution Approach 1:
The invention removes the need for stoppers by extracting the problematic configuration of unused tie holes. By relocating all tie holes to the formlining in central anchorage, every tie hole can be used for anchoring, eliminating the requirement for stoppers and the associated labor and costs.
Solution Approach 2:
The formlining itself serves the dual function of providing the concrete surface and housing the tie holes. This self-service approach eliminates the need for additional components like stoppers, as the formlining's web area naturally accommodates all necessary tie holes for any panel orientation.
3Reliability
If stoppers are arranged incorrectly, then they obstruct tie rod arrangement and require correction, increasing work effort
Solution Approach 1:
The formlining with integrated tie holes performs the anchoring function without requiring external stoppers. This self-service design eliminates the possibility of incorrect stopper placement and the subsequent time-consuming corrections, as all tie holes are inherently usable for tie rod insertion regardless of panel orientation.
4Ease of operation
If missing stoppers are not installed, then liquid concrete leaks and tie holes become clogged, compromising reliability
Solution Approach 1:
The invention extracts the need for stoppers by relocating tie holes to the formlining in central anchorage. This configuration ensures that all tie holes can be used for anchoring, eliminating the risk of concrete leakage and clogging associated with missing stoppers, while maintaining ease of operation.
5Shape
If conventional corner systems with edge anchorage are used, then corners can be formed, but the system is complex and requires multiple components
Solution Approach 1:
The formlining with centrally positioned tie holes serves multiple functions: it provides the concrete surface, houses all necessary tie holes for any orientation, and enables both straight and corner configurations without requiring different component types. This universality reduces device complexity while maintaining the ability to form various shapes including corners and T-shaped intersections.
Solution Approach 2:
The invention merges the tie hole function directly into the formlining structure through central anchorage, eliminating the need for separate frame-based anchorage systems. This consolidation of functions reduces the number of components and simplifies the overall corner system while maintaining shape-forming capabilities.
Data Source
AI summary
A panel formwork T-shaped arrangement has panel formwork elements 61, 62 directly bordering an intermediate panel formwork compensation element 53. The associated formlinings 61a, 53a, 62a are in one plane. These formlinings 61a, 53a, 62a delimit on one side the continuous wall 84 of the T-shaped intersection to be produced. The three components 61, 53, 62 are engaged from behind by a crossbar 85 for mechanical stabilization. The two formlinings 55a, 57a delimit on both sides the abutting wall 86 of the T-shaped intersection to be produced. The lateral outer edges 12 and 17 of the inner limb 56 and the panel formwork element 61 are aligned with respect to each other at the edge plane R. The outer edges 78 and 81 of the inner limb 58 and the panel formwork element 62 are also aligned with respect to each other at the edge plane R′.