Modular Pedestrian Tunnel With Hinged Legs for Variable Paths
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Solution Overview
Problem
Construction sites pose a risk to pedestrians from falling materials and debris, and existing protection structures are not adaptable to varying paths or stable under stress, especially during renovation or elevation works.
Innovation Solution
A modular pedestrian tunnel with adjustable and independently hinged supporting legs, a releasable grooved coupling device, and a spring mechanism that allows for angular positioning and easy assembly, enabling the structure to withstand stress and protect pedestrians from falling objects while being adaptable to different paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional scaffolding or fixed protection structures are used, then pedestrians are protected from falling materials, but the structures are not adaptable to different paths and environments
Solution Approach 1:
The tunnel is divided into multiple modular sections that can be independently assembled and configured. Each module contains standardized components (frame, plate, supporting legs) that can be repeated and adapted to different path lengths and environmental conditions without redesigning the entire structure.
Solution Approach 2:
The supporting legs are designed to be adjustable in position and angle, allowing the tunnel to adapt dynamically to different ground conditions and path requirements. The legs can be repositioned along the frame and angled to accommodate varying terrain, making the structure flexible rather than rigid.
2Ease of manufacture
If fixed protection structures are erected, then comprehensive coverage is provided, but the structures cannot be easily assembled or disassembled
Solution Approach 1:
The tunnel structure is segmented into standardized modules with consistent connection interfaces. This segmentation allows for rapid assembly and disassembly while maintaining structural integrity through repeated, proven connection designs that ensure reliability.
Solution Approach 2:
The supporting legs are designed to nest within or attach to the frame structure in a compact manner. This nesting capability allows the structure to be easily assembled and disassembled while maintaining stability during use, as the nested components provide structural support when deployed.
3Adaptability or versatility
If adjustable supporting legs are used, then the tunnel adapts to different paths, but the positioning mechanism becomes more complex
Solution Approach 1:
The supporting legs incorporate adjustable positioning mechanisms that allow the tunnel to adapt to different path configurations. The adjustment mechanisms are designed to be simple and intuitive, enabling users to modify the tunnel's configuration without complex procedures or specialized tools.
4Object-affected harmful factors
If continuous plate coverage is provided, then pedestrian protection is comprehensive, but the structure becomes heavier and more difficult to assemble
Solution Approach 1:
The continuous protective plate is divided into smaller, manageable sections that are integrated into each modular tunnel section. This segmentation reduces the weight and size of individual components, making them easier to handle and assemble while still providing continuous protection when the modules are connected.
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
The modular tunnel effectively protects pedestrians by providing a stable and adjustable barrier against falling objects and debris, allowing for safe passage under construction sites, and can be easily assembled and transported, enhancing safety and versatility.
Implementation Method 1
a spring configured to keep each supporting leg combined throughout the releasable grooved coupling device
Implementation Method 2
supporting legs hinged to the frame
Data Source
AI summary
A tunnel structure includes a frame; a continuous plate fixed to the frame in order to protect passing-through pedestrians; supporting legs hinged to the frame; and a connecting section supported by the frame, the connecting section configured to enable the combination of multiple tunnel structures.