Blast-Resistant Building Closure With Composite Insulating Profile
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing building closures, such as windows and doors, lack sufficient blast resistance and are not easily retrofittable to enhance this feature, with insulating profiles often being a weak point in terms of strength.
Innovation Solution
The attachment profile is composed of a hollow reinforcement profile and a jacket profile, with insulating webs connecting the outer and inner frame profiles, and separate glazing beads retaining each filling element, providing additional stiffening and allowing for easy adaptation and retrofitting, while maintaining thermal separation and security against burglary and explosives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If insulating profiles are used to separate inner and outer frame profiles for thermal insulation, then thermal separation is improved, but structural strength and blast resistance deteriorate due to the insulating material being a weak point
Solution Approach 1:
The insulating profile is constructed as a composite structure combining insulating material with integrated reinforcement elements (such as steel profiles or aluminum profiles) that run through or alongside the insulating material. This composite design maintains the thermal insulation properties while providing the structural strength needed to resist blast loads, effectively resolving the contradiction between thermal separation and blast resistance.
2Strength
If the building closure structure is stiffened to improve blast resistance, then strength is improved, but the complexity of the structure increases
Solution Approach 1:
The reinforcement elements are merged with the existing frame profile structure, where reinforcement profiles are integrated into the outer frame profile or attached to it in a unified manner. This merging approach provides the necessary stiffening for blast resistance while avoiding the need for completely separate, complex reinforcement systems, thus improving strength without excessively increasing structural complexity.
3Strength
If existing building closures are retrofitted with additional reinforcement to improve blast resistance, then strength is improved, but the ease of manufacture and installation deteriorates
Solution Approach 1:
The reinforcement system is segmented into modular components that can be independently manufactured and then assembled onto existing building closures. The attachment profile with integrated reinforcement elements can be produced as separate modules and installed on existing frame profiles without requiring complete disassembly or complex custom fabrication, thus improving blast resistance while maintaining ease of manufacture and installation.
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 configuration significantly enhances the blast resistance and security of building closures by stiffening the structure, allowing for easy removal and replacement of components, and dissipating pressure wave energy through component deformation and friction, while maintaining thermal separation and visual adaptability.
Implementation Method 1
insulating webs that form the insulating profile... ensure thermal separation of the inner and outer frame profile
Implementation Method 2
connecting elements passing through an insulating profile are connected to the frame profile located opposite it
Implementation Method 3
dissipating pressure wave energy through component deformation and friction
Implementation Method 4
dissipating pressure wave energy through component deformation and friction
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
A building closure (1) in a blast-resistant design comprises at least two infill elements (2) and a frame element (7) arranged in a gap (4) between the infill elements (2), which, together with further frame elements (7, 8), encloses each of the two infill elements (2). The frame element (7) arranged in the gap (4) consists of an outer frame profile (10) located outside the planes defined by the outer surfaces (9) of the infill elements (2) and an inner frame profile (11) running parallel to it, which is located within the planes defined by the inner surfaces of the infill elements (2). An insulating profile (12) is located between the two frame profiles (10, 11), and a facing profile (17a, 17i) is positioned in front of the outer frame profile (10) on the outside or the inner frame profile (11) on the inside.According to the invention, the front profile (17a, 17i) is connected to the frame profile (11, 10) opposite it by means of connecting elements (25) arranged in its longitudinal direction and passing through the area of the at least one insulating profile (12).