Rockwork Structural Support with Mechanical Rebar Crimps

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Solution Overview

Problem

The labor-intensive and time-consuming process of welding rebar assemblies in fabricating architectural structures, particularly rockwork for theme parks, necessitates a more efficient method for joining rebar assemblies without compromising structural integrity.

Innovation Solution

The use of custom-designed crimps, such as 2-bar and 3-bar crimps, to mechanically couple rebar assemblies, replacing traditional welding by applying a deformation force to secure rebar pieces in abutting contact, using tools like hydraulic crimpers to achieve a plastic deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to join rebar assemblies, then structural integrity is maintained, but labor intensity and construction time increase significantly

Engineering Contradiction:

Improvestructural integrityVSAvoidconstruction speed

Core Design Contradiction:

StrengthVSProductivity

Solution Approach 1:

The patent replaces the welding process (thermal/chemical joining) with a mechanical fastening system using clips and fasteners. The clip assembly includes a clip that mechanically engages with recesses in adjacent rebar assemblies, eliminating the need for welding while maintaining structural connection. This substitution of joining mechanism directly addresses the contradiction by removing the time-consuming welding step while preserving structural integrity through mechanical interlocking.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If welding is used to join rebar assemblies, then structural strength is achieved, but labor requirements and complexity increase

Engineering Contradiction:

Improvejoint strengthVSAvoidease of assembly

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The welding process is replaced with a mechanical fastening system using clips and fasteners that can be easily installed without specialized welding equipment or skills. The clip assembly with its engaging features provides adequate joint strength through mechanical interlocking, while dramatically simplifying the assembly process and reducing labor requirements.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The clip assembly acts as an intermediary component between adjacent rebar assemblies, providing a standardized mechanical connection interface. This intermediary element facilitates easier assembly by eliminating the need for direct welding between rebar pieces, while still achieving the required joint strength through the clip's mechanical engagement with recesses in the rebar assemblies.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If extensive welding is performed on-site, then rebar assemblies are securely joined, but safety risks and environmental concerns increase

Engineering Contradiction:

Improveconnection reliabilityVSAvoidsafety hazards

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces on-site welding operations with a mechanical fastening system using clips and fasteners. This eliminates safety hazards associated with welding (fire risks, fumes, hot work permits) while maintaining connection reliability through the mechanical interlocking of the clip assembly with recesses in the rebar assemblies. The mechanical system provides consistent, reliable connections without the harmful factors inherent in welding processes.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

This method reduces labor requirements, enhances safety, and significantly shortens construction timelines by eliminating the need for on-site welding, while maintaining structural strength and stability.

Implementation Method 1

applying a deformation force to secure rebar pieces in abutting contact, using tools like hydraulic crimpers to achieve a plastic deformation

Methodology Applied

Scientific EffectPlastic deformation: Plasticity

Data Source

PatentUS12442189B2Structural support system for rockwork with mechanical fastening of adjacent chip assemblies

Publication Date: 2025.10.14 DISNEY ENTERPRISES INC

AI summary

Rebar-based support assemblies that can be fabricated without the need for on-site welding. The assemblies include a number of differing sized and shaped crimps used in place of welds to provide rebar assembly-to-rebar assembly connections. In some examples, a crimp for mechanically joining rebar for use in a support system for a physical structure includes a body with at least two recessed surfaces each configured for receiving a respective first and second piece of rebar; and a pair of spaced-apart arms at least partially enclosing an interior space of the body including the at least two recessed surfaces, a first tip and a second tip of the respective spaced-apart arms each defining a respective first and second opening to the interior space, in a first configuration.