Textile Grid Fixing Device for Precise Concrete Reinforcement

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Solution Overview

Problem

The durability of reinforced concrete structures is compromised due to corrosion of embedded reinforcing bars, particularly in marine environments, leading to structural degradation, safety concerns, and costly repairs, as existing methods fail to effectively fix textile grid reinforcement materials between the mold and reinforcing bars during construction.

Innovation Solution

A textile grid fixing device comprising a head, cover, supporting part, and anchor is used to securely position textile grids between the mold and reinforcing bars, preventing displacement during concrete pouring and allowing for precise placement, which includes bolt-type or wedge-type anchors for adjustable height and secure fixation to the mold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If textile grid reinforcement material is used to suppress fine cracks, then durability is improved, but the textile grid cannot be fixed securely between mold and reinforcing bar, causing displacement during concrete pouring

Engineering Contradiction:
ImprovedurabilityVSAvoidplacement precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

A fixing apparatus is introduced as an intermediary component between the textile grid reinforcement material and the mold/reinforcing bar system. This apparatus includes fixing members that attach to the textile grid and anchoring structures that secure it to the mold, preventing displacement during concrete pouring while maintaining the durability benefits of the textile grid

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The textile grid reinforcement material is fixed to the mold and reinforcing bar structure before concrete pouring begins. The fixing apparatus is installed in advance to secure the textile grid at the correct position and orientation, ensuring it remains in place throughout the concrete pouring and curing process

Inventive Principle:
Principle #10Preliminary action

2Strength

If conventional reinforcing bar is used for structural reinforcement, then structural strength is achieved, but corrosion occurs in marine environments leading to structural degradation

Engineering Contradiction:
Improvestructural strengthVSAvoiddurability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The invention combines conventional reinforcing bar for structural strength with textile grid reinforcement material made from corrosion-resistant fibers (such as carbon fiber, aramid fiber, or glass fiber) for durability. This composite reinforcement system leverages the high strength of steel bars while the textile grid provides resistance to corrosion from chloride penetration and other environmental factors

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Different reinforcement materials are applied to different functional requirements: the conventional reinforcing bar provides the primary structural strength framework, while the textile grid reinforcement material provides localized protection against corrosion and crack formation, particularly in areas exposed to marine environments or deicing salts

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If textile grid is densely arranged to suppress fine cracks, then crack resistance is improved, but the textile grid is easily displaced by concrete pouring pressure without proper fixation

Engineering Contradiction:
Improvecrack resistanceVSAvoidresistance to pouring pressure
Core Design Contradiction:
Object-affected harmful factorsVSForce

Solution Approach 1:

The fixing apparatus acts as a mediator that transfers and distributes the concrete pouring pressure across the mold structure rather than concentrating it on the textile grid. The fixing members and anchoring structures absorb and redirect the hydrostatic pressure, preventing displacement of the densely arranged textile grid

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The textile grid is securely fixed to the mold structure before concrete pouring begins. The fixing apparatus is installed in advance to ensure the textile grid is firmly positioned and can withstand the subsequent concrete pouring pressure without displacement, maintaining its crack-suppressing function

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10837175B2Textile-reinforced concrete structure using textile grid fixing apparatus and construction method for the same
Publication Date: 2020.11.17 KOREA INST OF CIVIL ENG & BUILDING TECH
  • US10837175B2 patent drawing
  • US10837175B2 patent drawing
  • US10837175B2 patent drawing

AI summary

Provided are a textile-reinforced concrete structure using a textile grid fixing device and a construction method therefor. A textile grid is precisely disposed at a predetermined position between a mold and a main reinforcing bar using a textile grid fixing device so as to be prevented from being moved by a pouring pressure when concrete is poured, and thus a textile-reinforced concrete structure can be precisely constructed. The textile grid fixing device is fixed to one side of the mold, and the textile-reinforced concrete structure is constructed using the textile grid fixing device such that fine cracks are suppressed from being generated on a surface of concrete. Further, a surface of a concrete structure is protected from an external environment when the textile-reinforced concrete structure is constructed so that a covering thickness of concrete can be reduced, and thus, the textile-reinforced concrete structure can be economically constructed.