Low-Profile Highway Barrier With Interlocking Deflection Control
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Solution Overview
Problem
Existing concrete highway barriers are too tall, obstructing cross-traffic visibility, particularly at night, and do not meet modern safety standards for crash testing.
Innovation Solution
A low-profile, precast concrete barrier system with interlocking sections and embedded connectors, designed to minimize deflection and comply with safety guidelines, ensuring unhindered visibility and enhanced crash absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional concrete highway barriers are used, then crash protection is provided, but cross-traffic visibility is obstructed due to their height
Solution Approach 1:
The barrier height parameter is changed from traditional 32 inches to a reduced height, allowing cross-traffic visibility while maintaining crash protection through optimized geometry and interlocking connection design
2Reliability
If taller barriers are used to improve crash protection, then safety is enhanced, but visibility for cross-traffic drivers is reduced
Solution Approach 1:
Instead of increasing height vertically, the barrier design optimizes horizontal dimensions and interlocking connections to provide equivalent crash protection at a lower height, resolving the visibility-safety tradeoff
3Ease of operation
If barrier sections are connected with traditional methods, then assembly is simple, but deflection and lateral movement occur during crashes
Solution Approach 1:
The barrier is divided into precast sections with integrated connection features that provide both ease of assembly and rigid interlocking to minimize deflection during crash events
Solution Approach 2:
The connection mechanism merges the barrier sections into a unified structural system with continuous load path, eliminating loose hardware while maintaining assembly simplicity through pre-integrated connection features
Data Source
AI summary
A roadway barrier system includes a plurality of compact profile highway barriers preferably which are of a height which does not obstruct the viewing lines of a vehicle drivers on the road and permits them to see, for example, cross-traffic situations, work sites, and pedestrians. The barriers have tapered side walls which help maintain a crash on the roadway. Hooks are used to connect barriers end to end, and the hooks are positioned within a channel groove at the end of each barrier. When connected, the hooks of adjacent barriers are largely within the channel grooves of the two adjacent barriers which enables superior lateral deflection prevention. In addition, when connected a V shape section between the ends of adjacent rigid concrete sections of the plurality of rigid concrete sections extends upward from a base of the adjacent rigid concrete sections at an angle of five degrees or less.