Color-Coded Tendon Mounting for Fast Prestressed Slab Assembly

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Solution Overview

Problem

The current method of distributing, locking, and fixing greased tendons in prestressed concrete slabs is laborious, time-consuming, and prone to errors, leading to material waste, inefficiencies, and safety hazards due to the use of fragile plastic supports with limited adjustability and lack of precise material control.

Innovation Solution

An intelligent and reusable modular structure, identified by color and number, combined with a high-resistance steel support and tendon fixers that can secure one to four tendons, simplifies the assembly process and ensures accurate material usage, reducing waste and enhancing safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional methods of distributing, locking, and fixing greased tendons are used, then the construction process can be completed, but the assembly is laborious, time-consuming, and prone to material waste

Engineering Contradiction:
Improveassembly speedVSAvoidassembly time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system divides the tendon fixation process into modular components: resistant supports positioned at predetermined locations, color-coded tendon fixers matching specific tendon positions, and organized packaging modules. This segmentation allows for rapid assembly by simply attaching the pre-positioned components rather than performing complex manual fixation operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The resistant supports are pre-positioned in the mold at predetermined locations before tendon installation. The tendon fixers are pre-colored and organized in packaging modules according to the work plan. This preliminary preparation eliminates the need for on-site measurement, cutting, and manual adjustment, significantly reducing assembly time.

Inventive Principle:
Principle #10Preliminary action

2Loss of substance

If traditional methods are used, then tendon fixation can be achieved, but material waste occurs due to interpretation-dependent quantities and lack of precise control

Engineering Contradiction:
Improvematerial wasteVSAvoidmaterial quantity control
Core Design Contradiction:
Loss of substanceVSMeasurement precision

Solution Approach 1:

The tendon fixers are color-coded to correspond with specific tendon positions and types as defined in the work plan. The packaging modules are also color-coded. This color-coding system eliminates interpretation errors and ensures precise material quantity control by visually matching components to their designated locations, reducing material waste to nearly zero.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The work plan serves as a reference document that specifies the exact quantities and positions of resistant supports and tendon fixers needed. The color-coded system provides visual feedback to ensure correct material usage, allowing for immediate identification and correction of any deviations from the planned material quantities.

Inventive Principle:
Principle #23Feedback

3Reliability

If manual assembly methods are used, then flexibility in material selection exists, but the process is prone to errors and safety concerns during assembly and concrete placement

Engineering Contradiction:
Improveassembly safetyVSAvoidassembly system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

By dividing the fixation system into separate, pre-positioned resistant supports and color-coded tendon fixers, the complexity of manual assembly is reduced. Each component has a predetermined location and function, eliminating the need for complex manual coordination and reducing safety risks associated with manual handling and positioning of multiple components.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12626313B2Strong mounting system for greased plastic-coated prestressing tendons, intelligent reusable modular structure, strong support and fastener for fastening a tendon in a strong support
Publication Date: 2026.05.12 EVEHX NORTH AMERICA LLC
  • US12626313B2 patent drawing
  • US12626313B2 patent drawing
  • US12626313B2 patent drawing

AI summary

An assembly method is described for greased, plastic coated and prestressed concrete reinforcing tendons, comprising a work plan, an intelligent and reusable modular structure (modular box), a resistant support and a fixer for the tendons in resistant support, aiming to solve problems of storage, productivity, transport, construction process, generating improvement in technical qualification, thus obtaining a faster, more accurate and safer conference, associated with the color system inserted in a work plan. This method is used in the field of Civil Construction, especially in the execution of prestressed massive flat slabs.