Adjustable Curvature Formwork Panel with Synchronized Drive
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Solution Overview
Problem
Existing formwork systems with adjustable curvature for concrete structures require lengthy and tedious adjustment processes, making them inefficient for rapid implementation on construction sites.
Innovation Solution
A formwork system with synchronized drive mechanisms connecting spacer cylinders to a central actuating means, utilizing screw-type jacks, pinions, and Cardan joints for simultaneous and uniform adjustment of stiffener spacing, allowing for quick curvature changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple spacer screw jacks are used to adjust stiffener spacing in existing formwork systems, then curvature adjustment capability is achieved, but the adjustment process becomes lengthy and tedious
Solution Approach 1:
Multiple independent spacer screw jacks are merged into a synchronized system through a common actuating mechanism. The actuating means simultaneously controls all spacer cylinders, causing them to move in unison and thereby synchronizing the spacing adjustment of all stiffeners. This integration transforms the adjustment process from a series of individual manual operations into a single coordinated action, dramatically reducing adjustment time while maintaining curvature adaptability.
Solution Approach 2:
The formwork system transitions from a static configuration to a dynamically adjustable structure. The synchronized drive mechanisms enable real-time modification of stiffener spacing and shuttering sheet curvature during construction operations. This dynamic capability allows the formwork to adapt to different curvature requirements without requiring complete disassembly or lengthy reconfiguration procedures.
2Adaptability or versatility
If multiple spacer screw jacks are used to adjust stiffener spacing, then curvature control is achieved, but the operation becomes tedious and complex
Solution Approach 1:
The operation of multiple independent spacer screw jacks is merged into a single unified control action. The actuating means serves as a common control interface that simultaneously actuates all spacer cylinders, eliminating the need for operators to manually adjust each jack individually. This merging of control functions dramatically simplifies the operating procedure while maintaining precise curvature control capability.
Solution Approach 2:
The synchronized drive mechanisms incorporate self-coordination capabilities through mechanical linkages and common actuation. Once the actuating means is engaged, the system automatically coordinates the movement of all spacer cylinders without requiring continuous manual intervention or complex control procedures. The mechanisms serve themselves by distributing the actuation force uniformly across all cylinders through the synchronized drive system.
3Loss of time
If a single actuating means with synchronized drive mechanisms is used, then adjustment time is reduced, but device complexity increases
Solution Approach 1:
The synchronized drive system is segmented into modular components: a central actuating means, multiple spacer cylinders with integrated drive mechanisms, and connection linkages. Each spacer cylinder assembly functions as an independent module that can be manufactured and assembled separately, then integrated into the overall system. This segmentation reduces the complexity of the entire mechanism by breaking it down into manageable, standardized units.
Solution Approach 2:
The actuating means serves multiple functions simultaneously: it provides the driving force for all spacer cylinders, coordinates their synchronized movement, and enables curvature adjustment across the entire formwork panel. The drive mechanisms are designed with universal applicability, allowing the same mechanism type to be used at multiple locations throughout the formwork system, thereby standardizing components and reducing overall system complexity.
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 and uniform adjustment of formwork curvature, reducing setup time and facilitating efficient construction by synchronizing the movement of spacer cylinders through a central flywheel and drive mechanism, ensuring consistent deformation of the shuttering sheet.
Implementation Method 1
the spacer jacks are screw-type
Implementation Method 2
the drive means comprise a central hub provided with a Cardan joint at each of its respective ends
Data Source
Figure 1
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AI summary
The shutter has a casing sheet defining a front face. Stiffeners are arranged on a rear facing the casing sheet such that connection and spacing of the stiffeners modify a curve of the casing sheet. Multiple spreader jacks (30) regulate relative spacing of the stiffeners. A control unit (34) synchronizes controlling of the multiple spreader jacks, which are provided with screws. The control unit includes a driving unit for synchronized driving of the multiple spreader jacks.