Precast Slab Path Marking for Duct Installation
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Solution Overview
Problem
The process of constructing a building floor is lengthy and tedious due to the complexity of coordinating different trades in arranging ducts and pipes across pre-slabs, which often requires multiple interventions and can be inefficient.
Innovation Solution
A pre-slab with integrated locating means on its upper face, including guide and display features, to simplify the arrangement of sheaths such as cables and pipes by indicating the paths they should take, allowing the same workers to install these networks before casting the compression slab.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional floor assembly process is used with multiple trades coordinating duct installations, then flexibility in handling different duct configurations is maintained, but construction time increases and process complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-marking the upper face of precast slabs with path indicators showing where ducts should be routed. This allows workers to directly follow the marked paths when installing ducts, eliminating the need for complex coordination between multiple trades and significantly reducing installation time while maintaining flexibility for different duct configurations.
2Ease of operation
If multiple trades are involved in duct and pipe arrangement, then specialized expertise is available, but the construction process becomes lengthy and tedious
Solution Approach 1:
The patent applies self-service by making the precast slabs themselves provide the guidance information through integrated path marking. The marked paths on the slab surfaces serve as self-explanatory instructions that any worker can follow, eliminating the need for multiple specialized trades to coordinate and reducing construction time while maintaining installation quality.
3Manufacturing precision
If duct paths are determined during construction by multiple trades, then adaptability to site conditions is maintained, but manufacturing precision of slab layouts is reduced
Solution Approach 1:
The patent applies segmentation by dividing the floor assembly process into distinct phases: precast slab manufacturing with pre-marked paths, followed by duct installation according to those paths. This segmentation allows the slabs to be manufactured with high precision including accurate path markings, while still maintaining adaptability during installation as workers can follow the marked paths to achieve precise duct routing without requiring complex coordination between multiple trades.
Data Source
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AI summary
The invention relates to a precast slab comprising a concrete body having an upper face and a lower face. According to the invention, the precast slab includes means for locating a path to be followed by at least one conduit, said locating means being arranged on the upper face of the precast slab. The invention also relates to a method for manufacturing such a precast slab.