Modular Scaffolding Support Arm with U-Shaped Segments
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Solution Overview
Problem
Existing modular scaffolding systems face limitations in supporting high loads, require complex adjustments and large-scale transportation, are costly, and have difficulties with rapid assembly and disassembly, especially when subjected to compressive or tensile forces, and are not easily reusable across different terrains.
Innovation Solution
The modular scaffolding system incorporates support arms with U-shaped portions, reinforcing pins, tensioning cables, and a triangulated reinforcement structure, allowing for modular assembly and disassembly, and the use of perforated and corrugated retaining plates to enhance load resistance and ease of transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional steel beams and crosspieces are used to construct modular scaffoldings, then the scaffoldings can be assembled and disassembled, but they can only support low or medium loads and are subject to high loads likely to irreparably damage connection joints
Solution Approach 1:
The support arm is segmented into multiple U-shaped portions (first, second, third, fourth U-shaped portions) connected by junctions, allowing each segment to distribute and bear portions of the load independently, thereby increasing overall load capacity while protecting connection joints from irreparable damage
Solution Approach 2:
The support arm combines multiple steel elements (U-shaped portions, elongated beams, junctions) into a composite structure that distributes loads across different components, enabling the system to support compressive or tensile forces exceeding several thousand tons while maintaining connection joint integrity
2Adaptability or versatility
If beams or crosspieces are individually adjusted according to their respective length, then the scaffoldings can be adapted to particular circumstances, but this requires significant time and complexity in assembly
Solution Approach 1:
The support arm incorporates adjustable elements within its structure (such as adjustable beams between U-shaped portions) that allow length modification without requiring complete disassembly or individual adjustment of multiple separate beams, enabling rapid adaptation to different span requirements
Solution Approach 2:
The support arm is designed as a universal component that can serve multiple functions and configurations through its modular U-shaped portions and adjustable elements, allowing the same component type to be used across different scaffoldings with varying requirements, reducing assembly complexity
3Ease of manufacture
If modular scaffoldings are constructed from separately conveyable beams or crosspieces, then transport is possible, but conveying means of relatively large sizes are required which significantly affects transport cost
Solution Approach 1:
Multiple U-shaped portions and beams are merged into a single integrated support arm structure that can be conveyed as one compact unit rather than requiring separate transport of multiple individual beams and crosspieces, significantly reducing transport equipment size requirements
Solution Approach 2:
The support arm structure allows components to be nested or compacted together during transport, with U-shaped portions and beams arranged in a space-efficient configuration that minimizes the volume required for conveyance
4Adaptability or versatility
If welds are made to modulate the assemblies, then the scaffoldings can be adjusted, but this has significant disadvantages during dismantling
Solution Approach 1:
The support arm is divided into separable U-shaped portions and beams connected by mechanical joints rather than welded connections, allowing each segment to be independently removed and reconfigured without cutting or heating, enabling easy dismantling and reuse
Solution Approach 2:
The connection system uses adjustable mechanical joints that allow modulation of the assembly configuration through simple mechanical adjustments rather than permanent welding, facilitating both adaptation during assembly and easy dismantling when needed
Data Source
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Figure 9~10
AI summary
Support arm (1), in particular for modular scaffolding systems used for construction structures, the arm extending between a lower end and an upper end (2) which are connected to each other by an elongated body (4) having a section formed by at least three U-shaped portions (5) which have two lateral branches which are each integral with the lateral branch of the adjacent U-shaped portion (5).