Configurable Reservation Box for Concrete Slabs
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Solution Overview
Problem
The existing methods for creating reservations in concrete slabs for pipes, cables, and other sheaths during construction are time-consuming and resource-intensive, as they require separate operations for factory-made pre-slabs and on-site concreting.
Innovation Solution
A parallelepipedal reservation box with a belt wall that can be configured in two ways: pre-slab configuration for factory production and on-site configuration for concrete casting, allowing a single box to serve both purposes, featuring a central crosspiece and score lines for articulation, and a method involving pouring concrete with the box in place, then extracting it to form cavities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate reservation boxes are used for pre-slab and on-site concrete casting, then the reservation process can be completed for both operations, but the time and resource costs increase significantly
Solution Approach 1:
The reservation box is designed with a configurable belt wall that can adopt different spatial configurations to serve dual purposes: creating reservations in pre-slabs at the factory and creating reservations in on-site concrete casting. This multi-functionality eliminates the need for separate reservation boxes for each operation, thereby reducing time and resource costs while ensuring reliable reservation completion for both concrete operations.
2Loss of time
If a single reservation box is designed to serve both pre-slab and on-site concrete casting, then time and resource costs are reduced, but the device complexity increases due to configurable belt wall
Solution Approach 1:
The belt wall is segmented into multiple panels that can be independently configured through articulation along score lines. This segmentation allows the belt wall to adopt different spatial configurations (first configuration for pre-slab, second configuration for on-site casting) without requiring an entirely complex redesign. The modular panel structure simplifies the configuration process while maintaining the ability to serve both concrete operations with a single reservation box.
3Ease of manufacture
If the belt wall is formed by a single blank with score lines and cutouts, then manufacturing is simplified and packaging is facilitated, but the structural integrity during configuration changes must be maintained
Solution Approach 1:
The belt wall is manufactured as a single blank with pre-defined score lines and cutouts that indicate where articulation will occur. The score lines are pre-formed to guide the folding and configuration changes, while the cutouts are strategically positioned to maintain structural integrity during configuration transitions. This preliminary preparation ensures that the belt wall can be easily manufactured and packaged while maintaining sufficient strength to withstand configuration changes during use.
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
This solution streamlines the reservation process by using a single box for both factory-made pre-slabs and on-site concrete casting, reducing time and resource costs while ensuring complete fall protection for personnel.
Implementation Method 1
each of the panels has a fixed lower part linked to the wall base on which an upper part is hinged
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
This parallelepiped-shaped recess (1) comprises at least one back wall (2) and one side wall (3) with four panels; the back wall and the side wall (3) defining a cavity. In addition, each panel has a fixed lower portion (10a) connected to the back wall, on which is hinged an upper portion (10b) movable between: - a precast slab recess configuration I in which each of the upper portions is substantially perpendicular to its lower portion (10a), the upper portions defining a recess, and - a site recess configuration II in which each of the upper portions (10b) is substantially in line with its lower portion (10a), the upper portions (10b) forming a riser.