Bracket Assembly with Movable Support Carriages for Concrete Slabs

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Solution Overview

Problem

Current methods for forming elevated concrete slabs require extensive scaffolding and formwork support, which is cumbersome and inefficient, especially in terms of reusing formwork components after concrete curing, as they often leave the slab unsupported until fully self-supporting, and do not allow for continuous beam support to distribute weight evenly.

Innovation Solution

A bracket assembly with movable support carriages that pivot to secure formwork panels during concrete casting and can be lowered post-curing, allowing formwork removal without disturbing slab-supporting hardware, enabling reuse of formwork panels and maintaining continuous beam support for the slab until fully cured.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional scaffolding and formwork support methods are used, then the concrete slab can be supported during curing, but the formwork components cannot be easily removed and reused, and the system is cumbersome and inefficient

Engineering Contradiction:
Improvereusability of formwork panelsVSAvoidcomplexity of scaffolding and formwork support system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support system is segmented into distinct functional components: the bracket assembly with movable carriages separates the formwork support function from the slab support function. This allows the formwork panels to be removed and reused while the bracket assemblies remain in place to continue supporting the cured slab, resolving the contradiction between reusability and system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The carriages are made movable rather than fixed, allowing them to be positioned to support formwork panels during construction and then moved or removed after curing. This dynamic capability enables the formwork to be reused while maintaining slab support, addressing the reusability versus complexity contradiction

Inventive Principle:
Principle #15Dynamics

2Productivity

If formwork is removed early to enable reuse, then resource utilization improves, but the concrete slab may lack sufficient support during the curing period

Engineering Contradiction:
Improveconstruction efficiency and resource utilizationVSAvoidstructural support reliability during curing
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The bracket assemblies are pre-installed and positioned before concrete pouring, and the carriages are pre-configured to support the formwork panels. After curing, the carriages can be moved or removed without compromising slab support because the bracket assemblies remain in place. This preliminary positioning enables early formwork removal for reuse while maintaining structural reliability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The bracket assemblies act as an intermediary between the formwork panels and the concrete slab. They provide continuous support to the slab even after formwork removal, enabling early reuse of formwork panels while maintaining reliable structural support during the critical curing period

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If extensive scaffolding is used to support formwork, then the slab can be properly supported, but the system becomes cumbersome and requires more materials and time for assembly and disassembly

Engineering Contradiction:
Improvesupport capacity for concrete slabVSAvoidtime for assembly and disassembly of support system
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The essential support function is extracted from the temporary scaffolding system and embodied in the permanent bracket assemblies that remain attached to the slab. This eliminates the need for extensive temporary scaffolding and its time-consuming assembly and disassembly, while maintaining adequate support capacity through the retained bracket assemblies

Inventive Principle:
Principle #2Taking out (Extraction)

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 efficient removal and reuse of formwork panels while ensuring continuous beam support for the concrete slab, reducing the number of required panels and minimizing stress concentration points, thereby optimizing construction efficiency and resource utilization.

Implementation Method 1

each side portion terminates in a hinge that pivotably connects a respective support carriage to the body so that each support carriage can pivot between the upper and lower positions

Methodology Applied
Scientific EffectHinge: Hinge

Data Source

PatentEP2723955B1Formwork support improvements
Publication Date: 2021.06.23 FORM 700 PTI LTD
  • EP2723955B1 patent drawingFigure 1~2
  • EP2723955B1 patent drawingFigure 3
  • EP2723955B1 patent drawingFigure 4~8

AI summary

This invention relates to a bracket assembly for a hardware assembly for forming an elevated concrete slab or the like, the bracket assembly comprising a body securable to a supporting structure and a load bearing support carriage which depends from the body and is movable between at least upper and lower positions relative to the body whilst depending therefrom. An associated hardware assembly and method of use thereof are also disclosed.