Corrugated Safety Wall Modules for Projectile Energy Absorption
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Solution Overview
Problem
Existing facade elements and steel substructures are inadequate in absorbing and dissipating the high energy generated by projectiles, such as objects thrown against a building during explosions, which can cause damage to the building structure.
Innovation Solution
A safety wall module with a corrugated profile and reinforcing transverse ribs, attached to a building via a damping fastening device, designed to absorb and dissipate the energy of projectiles by targeted deformation of the ribs and deformation plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional facade elements and steel substructures are used, then the building structure is simple and easy to manufacture, but they cannot absorb high energy from projectiles causing damage
Solution Approach 1:
The safety wall module is divided into multiple corrugated profile sections with individual reinforcing ribs that can deform independently. Each rib acts as a separate energy absorption unit, allowing the structure to absorb high projectile energy through distributed localized deformation rather than requiring a monolithic complex structure
Solution Approach 2:
The corrugated profile geometry with specific wave patterns and the arrangement of reinforcing ribs are optimized to maximize energy absorption. The structural parameters of the profile sections and rib configurations are designed to control deformation behavior and energy dissipation characteristics while maintaining manufacturing simplicity
2Strength
If rigid fastening is used to attach safety wall to building wall, then the attachment is strong and stable, but the full energy of projectiles is transferred to the building wall
Solution Approach 1:
The fastening device incorporates deformation plates that are pre-designed to deform and absorb energy before the projectile energy reaches the building wall. These plates act as cushioning elements that reduce the harmful energy transfer to the building structure while maintaining secure attachment
Solution Approach 2:
The deformation plates serve as intermediary elements between the safety wall module and the building wall. They mediate the energy transfer by deforming under projectile impact, absorbing kinetic energy, and preventing full energy transmission to the building structure while maintaining the attachment connection
3Strength
If reinforcing ribs are made highly durable and resistant, then the structure is strong, but they cannot deform sufficiently to absorb projectile energy
Solution Approach 1:
The reinforcing ribs are designed with specific local geometric characteristics and material properties that enable controlled deformation. The ribs have optimized cross-sections and dimensions that provide sufficient strength for normal conditions while allowing deliberate deformation under projectile impact to absorb energy
Solution Approach 2:
The reinforcing ribs are designed to deform and potentially fail in a controlled manner under extreme projectile impact. This deliberate deformation converts the harmful projectile energy into useful work by deforming the ribs, thereby absorbing energy that would otherwise damage the building structure
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 safety wall module effectively prevents projectiles from penetrating the structure while minimizing energy transfer to the building, ensuring protection by absorbing and dissipating the kinetic energy through sacrificial deformation of the ribs and deformation plates.
Implementation Method 1
The reinforcing ribs allow for targeted deformation, even to the point of destruction of the reinforcing cross ribs, acting as sacrificial ribs
Implementation Method 2
the energy of an object striking the safety module as a projectile can be appropriately absorbed and dampened by the corrugated profile with its attached reinforcing cross ribs
Implementation Method 3
each deformation plate of the deformation plate set has at least one deformation structure for the deformability, in particular plastic deformability, of the deformation plate
Implementation Method 4
The dampening fastening device can additionally dampen the energy transmitted by an object striking the safety wall system as a projectile
Data Source
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AI summary
The invention relates to a safety wall module, a safety wall system with at least one safety wall module, a fastening device for fastening the safety wall module, and a deformation plate. A safety wall module for a building wall is provided, in particular for damping at least one object striking the safety wall module as a projectile, comprising: a corrugated profile with corrugated profile sections, wherein the longitudinal sides of the corrugated profile sections extend in the longitudinal direction of the safety wall module, wherein on a front and/or rear side of the corrugated profile, in a corrugation trough formed between at least two adjacent corrugated profile sections, a plurality of transverse reinforcing ribs, in particular plate-shaped reinforcing ribs, are fastened, wherein the respective reinforcing ribs extend transversely or in the transverse direction between the longitudinal sides of the two adjacent corrugated profile sections.