Formwork Panel Clamping Device for Uniform Tensioning
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Solution Overview
Problem
Existing formwork systems for concrete walls are cumbersome and time-consuming to assemble, requiring operators to bend and climb to tighten connections, leading to uneven tension and increased arduousness, especially when panels are not perfectly aligned.
Innovation Solution
A formwork panel design featuring a clamping device with a connecting rod that allows for simple and adjustable traction, utilizing a hydraulic actuator for assistance and precise tensioning, and a control unit to coordinate movements of clamping devices at multiple points for efficient alignment and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional screw-nut connection systems are used to connect formwork panels, then the panels can be joined together, but the connection process becomes cumbersome and time-consuming requiring operators to bend and climb to tighten connections
Solution Approach 1:
The connection system is divided into separate functional components: connecting rods that pass through receiving openings, and clamping devices with heads that independently tighten at each connection point. This segmentation allows each component to perform its specific function efficiently, with the clamping device's movable element automatically applying tension without requiring operator intervention at each point.
Solution Approach 2:
The clamping device is designed to automatically tighten the connection between panels. The movable element, when actuated, self-adjusts to apply the necessary clamping force on the connecting rod, eliminating the need for operators to manually tighten each connection point. The device serves itself by converting the actuation motion directly into clamping action.
2Reliability
If manual tightening of connecting elements is performed by operators, then connections are achieved, but the tightening tensions are not uniform since each operator can apply a different tension
Solution Approach 1:
The clamping device standardizes the clamping force parameter through its mechanical design. The movable element's geometry and the clamping mechanism are designed to apply a consistent, repeatable force regardless of which operator operates it. This ensures uniform tension across all connection points, improving reliability and connection consistency.
3Ease of operation
If positioning pins are guided in translation at the top and bottom points to bring panels together, then physical strain on operators is reduced, but gaps can appear between panels at the top and/or bottom point due to concreting forces
Solution Approach 1:
The clamping device applies preliminary clamping force to the connecting rods before concreting begins. This pre-tensioning ensures that the panels remain tightly connected throughout the concreting process, preventing gaps from forming at the top and bottom points. The clamping force is maintained continuously to counteract the concrete pressure.
4Stability of the object's composition
If multiple clamping points are used to connect formwork panels, then connection stability is improved, but the device complexity and number of components increases
Solution Approach 1:
The clamping device is designed as a universal component that can be used at multiple connection points (top, bottom, and intermediate points). Each clamping device is identical and performs the same function, allowing standardization across the entire formwork system. This multi-functionality reduces overall system complexity by using repeated, standardized components rather than specialized devices for each location.
Data Source
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AI summary
A formwork panel comprising a front formwork face and at least one first lateral edge including at least one receiving opening, extending along a horizontal opening axis, configured to allow the passage of a connecting rod belonging to a connecting device of another formwork panel, the formwork panel including a clamping device (3) configured to exert a pull on the connecting rod, the clamping device (3) comprising: - At least one head (4), extending opposite the receiving opening, including an open cavity (40) configured to receive a connecting end of the connecting rod, - At least one locking member (5) configured to block in translation along the horizontal opening axis the connecting end of the connecting rod and the head, and - At least one displacement member (6) of the head in translation along the horizontal opening axis.