Prefabricated Module Connection System Using Corner Castings

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Solution Overview

Problem

Construction technology has progressed slowly, with prefabrication systems being costly, requiring expensive factories and equipment, and offering limited architectural and space flexibility.

Innovation Solution

Prefabricated volumetric construction modules with self-supporting structures and connection mechanisms, including corner castings and connection rods, allow for efficient assembly and securement of modules, enabling rapid construction with reduced labor and equipment needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If prefabrication systems are implemented, then construction speed and efficiency are improved, but cost increases due to expensive factories and equipment

Engineering Contradiction:
Improveconstruction speedVSAvoidcost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The building system is divided into modular volumetric units that can be manufactured separately and assembled on-site. Each module is a complete, self-contained unit with integrated services, allowing parallel production and reducing overall construction time without requiring massive centralized factories

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The corner castings serve multiple functions: structural connection, alignment reference, and integration point for services. This multi-functionality reduces the number of separate components needed, lowering manufacturing complexity and cost while maintaining high assembly speed

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If traditional prefabrication systems are used, then construction efficiency is improved, but architectural and space flexibility is reduced

Engineering Contradiction:
Improveconstruction efficiencyVSAvoidarchitectural flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system allows dynamic configuration through the arrangement and combination of standardized modules. The corner castings provide flexible connection points that can accommodate various module orientations and configurations, enabling architectural diversity while maintaining manufacturing standardization

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Modules can be nested or stacked in multiple configurations to create varied building forms. The corner castings enable modules to be connected vertically, horizontally, and at angles, allowing complex architectural expressions from simple standardized components

Inventive Principle:
Principle #7Nested doll (Nesting)

3Loss of time

If prefabricated modules are assembled, then construction time is reduced, but labor skill requirements increase

Engineering Contradiction:
Improveconstruction timeVSAvoidlabor skill requirement
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

All complex fabrication work is performed in advance in controlled factory environments. Modules arrive on-site complete with integrated services and structural elements, requiring only straightforward assembly operations that reduce skill requirements while maintaining rapid construction

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The corner castings act as intermediaries that simplify the connection process. They provide pre-formed connection points and alignment features that guide the assembly process, reducing the skill level needed for precise positioning and connection

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4234825B1Connection system and method for prefabricated volumetric construction modules
Publication Date: 2025.10.15 MRCB INNOVATIONS SDN BHD
  • EP4234825B1 patent drawingFigure 1A~1B
  • EP4234825B1 patent drawingFigure 1C
  • EP4234825B1 patent drawingFigure 2A~2C

AI summary

The invention provides a prefabricated volumetric construction module having connection mechanism for securing to other similar modules. A prefabricated volumetric construction module includes a self-supporting structure and pairs of corner castings arranged at least at the corners of the structure. During building construction, the modules are assembled and secured together using connection rods and interlocking plates to provide vertical securement between vertically adjoining modules and horizontal securement between horizontally adjoining modules.