Climbing Formwork Positioning via Optical Measurement
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Solution Overview
Problem
Current methods for adjusting climbing formworks during concrete structure erection are inefficient, relying on manual measurements and GPS, which are unreliable and time-consuming, especially for suspended formworks, and fail to accurately determine the correct position of the formwork.
Innovation Solution
A climbing formwork system equipped with multiple measuring units and a processing unit that generates a 3D data model of the form elements and casting segments to calculate and adjust the target spatial arrangement of the form elements, allowing for automatic or manual alignment to ensure accurate positioning and minimize manual effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurements and GPS are used for adjusting climbing formworks, then the system is simple to operate, but the measurement precision and reliability are insufficient
Solution Approach 1:
The patent replaces manual mechanical measurement methods with an automated optical measurement system. The measuring unit with camera and evaluation unit automatically captures images and calculates spatial arrangements, eliminating the need for manual measurements and GPS while significantly improving positioning accuracy and reliability.
Solution Approach 2:
The patent creates a digital 3D model (copy) of the actual spatial arrangement by capturing images and processing them through the evaluation unit. This digital representation allows for precise measurement and comparison with the target spatial arrangement without requiring physical manual measurement tools.
2Reliability
If GPS is used for determining formwork position, then the device complexity is low, but the reliability deteriorates in suspended formworks due to satellite connection issues
Solution Approach 1:
The patent replaces GPS satellite-based positioning with a local optical measurement system that captures images of the formwork and surrounding structures. This substitution eliminates dependency on satellite connections, ensuring reliable positioning even when the formwork is suspended and GPS signal is unavailable.
Solution Approach 2:
The patent introduces an intermediary measurement approach by using visible reference points and structures in the environment as mediators for positioning. Instead of relying on satellite signals, the system uses images of known reference points to calculate the formwork's spatial arrangement, providing a reliable alternative in GPS-denied environments.
3Productivity
If extensive manual measurements are performed for each casting step, then the measurement precision can be maintained, but the productivity decreases due to time-consuming procedures
Solution Approach 1:
The patent enables the system to perform self-measurement by automatically capturing images and calculating spatial arrangements without human intervention. The measuring unit and evaluation unit work autonomously to determine the actual spatial arrangement and compare it with the target arrangement, eliminating the need for manual measurements and significantly reducing adjustment time.
Solution Approach 2:
The patent allows for continuous measurement and adjustment by capturing images at any stage of the casting process. The system can continuously monitor the formwork position and provide real-time feedback, enabling uninterrupted workflow and eliminating the need to stop construction for manual measurements.
4Measurement precision
If GPS receivers are used on suspended formworks, then the device complexity remains low, but the measurement precision deteriorates due to unreliable satellite connection
Solution Approach 1:
The patent replaces GPS satellite-based positioning with a local optical measurement system that captures images and processes them to determine precise spatial arrangements. This substitution maintains low device complexity while dramatically improving positioning accuracy by using visual references that are always available in the construction environment.
Data Source
Figure 1
Figure 2~4
Figure 3b~3c
AI summary
A climbing formwork (1) for erection of a concrete structure (2) by successively casting a plurality of casting segments (14, 15, 16), the climbing formwork (1) comprising at least a first form element (4) for delimiting a cavity (6) to receive concrete for forming an uppermost casting segment, a first support structure (7) to support the first form element (4), characterized by a first measuring unit (10) for determining an actual spatial arrangement of the first form element (4), a second measuring unit (11) for determining a spatial arrangement of a first lower casting segment (14), a processing unit (17), the processing unit (17) being arranged for calculating a target spatial arrangement of the first form element (4) from the spatial arrangement of the first lower casting segment (14), the processing unit (17) further being arranged for determining a deviation between the actual spatial arrangement and the target spatial arrangement of the first form element (4).