Modular Parapet Panel System for Bridge Corrosion Protection
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Solution Overview
Problem
Snow and ice removal processes lead to salt accumulation on bridge parapets, causing concrete erosion and cracking due to corrosive effects, which results in costly repairs and safety hazards, especially in regions like northeast Ohio where parapet cracking is prevalent.
Innovation Solution
Modular panel systems that cover parapets, preventing salt and chemical contact with the concrete, are designed to be aesthetically appealing, easy to install, cost-effective, and environmentally friendly, using recyclable materials, and reduce maintenance risks by protecting the structure from deterioration and cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If routine painting is used to inhibit corrosion of concrete support, then corrosion protection is provided, but it is expensive, poses safety risk to workers, disrupts traffic, and only lasts for a short period of time
Solution Approach 1:
The protective system is divided into multiple modular panels that can be independently installed and removed. Each panel is a separate unit that covers a specific section of the parapet, allowing for localized maintenance without requiring complete coverage or continuous traffic disruption.
Solution Approach 2:
The panels are pre-assembled with protective coatings applied in advance under controlled conditions. This preliminary preparation eliminates the need for on-site painting operations, removing workers from hazardous environments and preventing traffic disruptions during the actual application process.
2Reliability
If modular panel systems are installed to prevent salt and chemical contact with concrete, then concrete deterioration is prevented and structural integrity is enhanced, but installation complexity and initial cost increase
Solution Approach 1:
The modular panels are designed to perform multiple functions: they provide chemical protection from salt and deicers, offer structural reinforcement, enable easy installation and removal, and maintain aesthetic appeal. This multi-functionality consolidates what would otherwise require multiple separate systems into a single integrated solution.
Solution Approach 2:
The panels utilize thin-film protective coatings that conform to the parapet surface while providing effective chemical barrier protection. This approach offers robust protection without requiring thick, bulky materials that would increase structural complexity and weight.
3Shape
If panels are designed to be aesthetically appealing with multiple surfaces and angles, then visual appearance is improved, but manufacturing complexity increases
Solution Approach 1:
The complex aesthetic design is achieved by dividing the panel into multiple planar surfaces (top surface, first side surface, second side surface, third side surface) that can be manufactured as separate facets and then assembled. This segmentation allows each surface to be optimized independently for both appearance and manufacturing efficiency.
Solution Approach 2:
The panel features asymmetric angular relationships between surfaces (first angle between top and first side, second angle between top and second side, third angle between second and third sides) that create visual interest and aesthetic appeal while being accommodated through modular manufacturing processes.
4Adaptability or versatility
If through-holes and brackets are added to accommodate supports of any height and shape, then adaptability to different parapet configurations is improved, but structural integrity and manufacturing simplicity decrease
Solution Approach 1:
The bracket system is designed with universal adaptability to accommodate supports of varying heights and shapes through adjustable mounting mechanisms. This single universal bracket design replaces the need for multiple specialized brackets, simplifying both manufacturing and installation while maintaining versatility.
Solution Approach 2:
The bracket acts as an intermediary component that interfaces between the panel and the support structure. This mediator absorbs the variability in support configurations, allowing the panel itself to maintain a simple, clean design while the bracket handles the adaptability requirements.
Data Source
AI summary
A modular cover panel including two or more cover panels that cover a parapet or barrier along a roadway. Multiple cover segments may overlap one another to form the modular cover panel and each cover panel is individually hung or suspended by brackets affixed to the parapet. Each cover segment has one more surfaces intersecting with other to cover the parapet and a top surface that overhangs a top surface of the parapet. A cable may be disposed through a slot of a hanging bracket and a pin may secure the cable thereby providing a mechanical attachment to the assembly.