Double-Curved Wire Mesh Panel for Multi-Directional Rigidity
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Solution Overview
Problem
Existing reinforcement systems for granular elements in structures, such as reinforced soil structures, face challenges in uniformly increasing rigidity across multiple directions, leading to undesirable bulges and are costly due to the use of thick galvanized steel wire meshes that are difficult to produce and prone to corrosion.
Innovation Solution
A wire mesh panel with interlocking metal wires arranged in two orientations and featuring parallel folds forming primary and secondary curvatures, allowing for increased rigidity through geometric design, reducing wire diameter and eliminating the need for galvanizing, while using electrofusion welds for enhanced strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If horizontal folds or corrugations are used to increase mechanical resistance, then rigidity in a given direction is improved, but rigidity in other directions deteriorates leading to undesirable bulges
Solution Approach 1:
The invention applies double curvature to the wire mesh panel, creating a three-dimensional geometric form with folds in two different directions. This double curvature distributes stresses more evenly across the panel surface, preventing localized bulges while maintaining mechanical resistance. The curved geometry transforms the flat panel into a structurally more efficient form that resists deformation in multiple directions simultaneously.
Solution Approach 2:
The invention transitions from a two-dimensional flat wire mesh to a three-dimensional form by introducing folds that create curvature in multiple directions. This dimensional transformation allows the panel to achieve rigidity in both horizontal and vertical directions, eliminating the directional limitation of simple horizontal corrugations and preventing bulge formation.
2Strength
If very thick galvanized steel wire is used to increase rigidity, then mechanical strength is improved, but manufacturing difficulty and corrosion risk increase
Solution Approach 1:
The invention changes the geometric parameters of the wire mesh by introducing double curvature and optimizing wire diameter within a specific range (4-12mm). This parameter optimization, combined with electrofusion welding technology, achieves the required rigidity without needing excessively thick wires. The electrofusion welding process creates strong joints that compensate for using thinner, more manufacturable wire diameters.
Solution Approach 2:
The invention replaces traditional mechanical connection methods (such as twisting or clamping) with electrofusion welding, which uses electrical current to melt and fuse the wires together. This substitution creates stronger, more reliable joints and eliminates the need for complex mechanical fastening systems, simplifying manufacturing while improving structural integrity.
3Strength
If very thick galvanized steel wire is used to increase rigidity, then mechanical strength is improved, but cost volatility increases due to steel price fluctuations
Solution Approach 1:
The invention optimizes wire diameter parameters to fall within the 4-12mm range, avoiding the need for very thick wires. By combining optimized wire diameter with double curvature geometry and electrofusion welding, the design achieves required rigidity while reducing total steel quantity and associated costs. This parameter optimization makes the structure more resilient to steel price volatility.
4Strength
If electrofusion welds are used to enhance strength, then joint strength is improved, but exposure of steel through galvanized coating at weld points may occur
Solution Approach 1:
The invention applies a protective coating to the wire mesh before the electrofusion welding process. This pre-applied coating serves as a cushioning layer that protects the steel at weld points during and after the welding process. The coating system is designed to accommodate the welding heat and maintain corrosion protection even at the welded joints, preventing exposure of bare steel.
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 solution provides improved rigidity in multiple directions, reduces material costs, and minimizes corrosion by optimizing wire mesh design and welding process, enhancing structural stability and durability.
Implementation Method 1
The nodes of the wire mesh network are secured by welds between the wires. Preferably, this weld is a non-reinforcing weld, such as an electrofusion weld.
Data Source
Figure 1~2
Figure 3
AI summary
Disclosed is a device for containing granular elements, comprising a metal mesh panel having metal wires welded together, the panel presenting at least one curvature of a first orientation and at least one curvature of a second orientation, the first orientation being characterized by a first axis and the second orientation being characterized by a second axis, the first axis and the second axis being non-collinear.