Fire-Resistant Panel Composite for 250 kg/m² Load Capacity

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Solution Overview

Problem

Existing fire-resistant panels do not meet the required carrying capacity standards of R30 and R60 as defined by EN 13501-2:2016, leading to potential collapse under load during a fire.

Innovation Solution

A fire-resistant panel system comprising aluminium plates, mineral wool fill, stainless steel frame, and EPDM foam sealing, with a U-shaped cross-section frame and corner joints, ensuring structural integrity and fire resistance, and installation using aluminium holders and stainless steel side carriers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional fire-resistant panels are used, then fire resistance is provided, but carrying capacity under fire load is insufficient

Engineering Contradiction:
Improvecarrying capacityVSAvoidfire resistance reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The panel combines aluminium plates with mineral wool fill and stainless steel frame to create a composite structure that simultaneously achieves high carrying capacity (250 kg/m²) and fire resistance (R60 class). The mineral wool provides fire insulation while the metal components provide structural strength.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The panel uses different materials with specific properties in different locations: aluminium plates for structural integrity, mineral wool for fire insulation, and stainless steel frame for reinforcement. This local optimization ensures both strength and fire resistance are achieved where needed.

Inventive Principle:
Principle #3Local quality

2Strength

If panel thickness is increased to improve carrying capacity, then load bearing improves, but installation complexity increases

Engineering Contradiction:
Improvecarrying capacityVSAvoidinstallation complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The panel is divided into modular components (aluminium plates, mineral wool fill, stainless steel frame) that can be independently manufactured and then assembled. This segmentation allows for simplified installation despite the substantial thickness required for carrying capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The panel components are pre-assembled into a complete fire-resistant unit before installation. The aluminium plates, mineral wool, and frame are combined in advance, reducing on-site assembly complexity while maintaining the required thickness for load bearing.

Inventive Principle:
Principle #10Preliminary action

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

The panel system maintains structural integrity under a load of 250 kg/m² and endures fire conditions for at least 60 minutes without deflection or deformation, meeting R60 standards.

Implementation Method 1

panel fill made from material, preferably made from mineral wool, which is provided between the top and the bottom plate

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

a side sealing from EPDM foam

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4617443A1A fire resistant panel, a system of said panel and installation means, assemblies comprising said panels and methods of production and assembly thereof
Publication Date: 2025.09.17 CLEANGRAD D O O
  • EP4617443A1 patent drawingFigure 1
  • EP4617443A1 patent drawingFigure 2a
  • EP4617443A1 patent drawingFigure 2b~3

AI summary

The present invention belongs to the field of construction materials, more precisely to construction panels resistant to fire. The invention relates to a fire resistant panel, a system of said panel and installation means, as well as to assemblies comprising said panels and methods of production and assembly thereof. The fire resistant panel comprises a top plate, a bottom plate, panel fill made from any suitable material, which is provided between the top and the bottom plate, wherein the thickness of the fill is at least 50 mm to allow suitable carrying capacity of 250kg/m2, and wherein all of the above components are glued together with a suitable glue and additionally screwed together with suitable screws around the entire perimeter on side of panel and both plates, at least every 500 mm. The panel further comprises a side fire-resistant sealing provided around the entire perimeter on side between said plates, a frame made from a curved stainless steel, provided around the entire perimeter, wherein the cross-section of the frame has a shape of letter U and comprises reinforcements at least every 600 mm and around any possible openings for installation of lights, installations, sensors and/or other elements, wherein said reinforcements are made from stainless steel, and corner joints provided at every corner, wherein said corner joints are made from curved stainless steel.