Precast Slab with Integrated Reservation Boxes for Floor Assembly

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Solution Overview

Problem

The construction process of building floors is lengthy and tedious due to the need for multiple trades to identify and install reservation spaces and duct networks, which complicates the assembly of pre-slabs and compression slabs.

Innovation Solution

A pre-slab with integrated reservations and guide means, such as reservation boxes and incorporations, that are secured to the slab and include alphanumeric signs for identification, allowing for direct installation of duct networks and simplifying the assembly process by eliminating the need for additional reservation spaces and trades.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple trades intervene to install reservation spaces and duct networks after pre-slab assembly, then the floor can be constructed with proper reservations, but the construction process becomes lengthy and tedious

Engineering Contradiction:
Improveproper installation of reservations and duct networksVSAvoidconstruction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-installing incorporations (formwork elements) onto pre-slabs at the factory before delivery to the construction site. These incorporations are positioned in advance to create reservations in the compression slab, eliminating the need for multiple trades to intervene later and significantly reducing construction time while ensuring proper installation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent merges the pre-slab assembly function with the reservation creation function by integrating incorporations onto the pre-slabs. This combination allows a single trade to handle both pre-slab installation and reservation preparation, eliminating the need for separate interventions by electricians and plumbers, thereby reducing both time and complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple trades are required to identify and install reservation spaces, then proper reservations can be created, but the assembly process becomes more complex

Engineering Contradiction:
Improveaccuracy of reservation placementVSAvoidassembly process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies self-service by designing pre-slabs with pre-positioned incorporations that automatically provide the reservation spaces needed by electricians and plumbers. The incorporations are factory-prepared with accurate positioning, allowing the installation team to simply follow the planned layout without requiring multiple trades to intervene and create reservations manually, thus reducing assembly complexity while maintaining accuracy.

Inventive Principle:
Principle #25Self-service

3Reliability

If incorporations are installed after pre-slab assembly, then reservations can be created, but the same trade must perform multiple separate operations

Engineering Contradiction:
Improvereservation creationVSAvoidassembly speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by having incorporations pre-installed on pre-slabs at the factory. This allows the same trade to simply position and secure the pre-slabs with incorporations during assembly, rather than stopping to install incorporations after assembly, thereby maintaining reservation creation reliability while significantly improving assembly speed and productivity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3249127B1Pre-slab comprising at least one inclusion and method for manufacturing a floor using such a pre-slab
Publication Date: 2019.09.11 KP1
  • EP3249127B1 patent drawingFigure 1
  • EP3249127B1 patent drawingFigure 2a
  • EP3249127B1 patent drawingFigure 2b

AI summary

The invention relates to a precast slab (1) comprising a concrete body (2). According to the invention, the precast slab includes an insert (6, 7) which is attached to the precast slab so as to project from an upper face of the precast slab without extending to an underside of the precast slab, the insert being intended to form a recess in a compression slab subsequently poured onto the precast slab. The invention also relates to a method for manufacturing a floor using such a precast slab.