Construction Cable Anchoring with Layered Reinforcement Ends
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Solution Overview
Problem
Existing anchoring systems for structural cables, such as those described in French patent 693 873 and European Patent No 0 935 034, face limitations due to the need for long cavities and complex installation processes, which restrict their application in confined spaces and require specialized end pieces, making them difficult to implement and inefficient.
Innovation Solution
A structural cable anchoring system featuring reinforcements with enlarged ends, a cavity with a larger section portion for distribution of these ends in multiple layers, and a sealing material to ensure anchoring, along with an optional spacer member to enhance separation and firm anchoring, allowing for a reduced longitudinal size and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a long cavity is used to ensure sufficient distance between wires for longitudinal adherence, then anchoring reliability is improved, but the longitudinal size of the anchor increases, limiting applications in confined spaces
Solution Approach 1:
The invention transitions from a longitudinal distribution of wires (single dimension) to a transverse distribution in multiple layers (multiple dimensions). The cavity now accommodates wires arranged in layers with transverse spacing, allowing sufficient wire separation without increasing the longitudinal cavity length. This dimensional change resolves the contradiction by maintaining anchoring reliability through proper wire spacing while reducing the anchor's longitudinal footprint for confined space applications
Solution Approach 2:
The invention segments the wire bundle into multiple layers within the cavity, with each layer containing a subset of wires. This segmentation allows for systematic transverse distribution of wires, ensuring adequate spacing between individual wires for longitudinal adherence while organizing the bundle in a compact multi-layer configuration that reduces the overall longitudinal size requirement of the anchor
2Manufacturing precision
If reinforcements are introduced one by one to ensure proper placement at the bottom of the cavity, then anchoring precision is improved, but the installation time and complexity increase significantly
Solution Approach 1:
The invention incorporates preliminary action by pre-arranging the reinforcements in a bundled configuration with predetermined layering and transverse distribution before introduction into the cavity. The widened parts of the reinforcements are pre-positioned to facilitate their collective engagement with the cavity bottom. This preliminary preparation allows the entire bundle to be introduced as a unit rather than individually, maintaining placement precision while dramatically reducing installation time and complexity
Solution Approach 2:
The invention merges multiple reinforcements into a single bundled assembly that is introduced into the cavity as one unit. The bundle is designed with internal structure (layered arrangement, transverse spacing) that ensures proper distribution of individual reinforcements upon engagement with the cavity bottom. This merging approach eliminates the need for sequential introduction of each reinforcement, reducing installation time while maintaining precision through the pre-engineered bundle configuration
3Shape
If the cavity section is enlarged to accommodate distributed reinforcements in multiple layers, then the transverse distribution of reinforcements is improved, but the cavity volume increases
Solution Approach 1:
The invention utilizes the transverse dimension (width) of the cavity to distribute reinforcements in multiple layers, rather than relying solely on longitudinal spacing. By arranging wires in parallel layers across the transverse section of the cavity, the system achieves sufficient wire separation without proportionally increasing cavity volume. The enlarged section provides the necessary transverse space for layered arrangement while maintaining compact overall dimensions
Data Source
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AI summary
The structure has a set of reinforcements (1) that is provided under tension, where each of the set of reinforcements is arranged with an end that is provided with a widened portion. A cavity is formed in the structure, and a sealing material is filled in the cavity that contains the end of the reinforcements. The widened portion of the reinforcements is divided into a set of layers that is shifted according to a longitudinal direction (Y) of the cavity. An independent claim is also included for a method for anchoring a cable structure.