Shallow-Mount Security Bollard Base with Interconnected Panels
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Solution Overview
Problem
Existing shallow-mount security bollards face challenges in providing effective resistance against high-energy vehicle impacts due to limitations in depth of installation and connectivity issues caused by underground obstructions, leading to inefficiencies in installation and reduced protection coverage.
Innovation Solution
A shallow-mount bollard assembly with a base comprising interconnected panels and a mount for the bollard post, featuring a receptacle tube and crosswise panels that are welded together for increased strength, allowing secure anchoring and resistance to vehicle impacts without deep foundations or complex reinforcement connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If deep holes, concrete foundations, and bases are used for bollards, then resistance against high-energy vehicle impacts is improved, but installation difficulty and time increase
Solution Approach 1:
The base is divided into multiple interconnected panels (first panel, second panel, third panel, fourth panel) that can be assembled together to form the complete base structure. This segmentation allows for easier manufacturing, transportation, and installation compared to a single deep-founded base, while maintaining the required strength through the interconnecting elements and reinforcement structures.
2Ease of manufacture
If shallow-mount bollards are used, then installation ease is improved, but resistance against high-energy vehicle impacts deteriorates
Solution Approach 1:
The base employs composite construction combining multiple panel types (upright panels, crosswise panels, intermediate panels) with reinforcement structures including rebar cages and concrete. This composite approach enables the shallow-mount design to achieve sufficient impact resistance without requiring deep foundations, as the combined structural elements work together to distribute and withstand vehicle impact forces.
Solution Approach 2:
Instead of relying solely on vertical depth for strength, the invention distributes structural reinforcement horizontally across multiple panels and uses intermediate panels spaced apart to create a three-dimensional reinforcement network. This dimensional approach allows shallow-mount installation while maintaining impact resistance through lateral strength distribution.
3Strength
If bases of adjacent shallow-mount bollards are fixedly connected with reinforcing steel structures, then resistance against vehicle impacts is improved, but complexity of installation increases
Solution Approach 1:
The base is designed as a self-contained segmented structure with four distinct panels connected by interconnecting elements. Each panel can be manufactured separately and then assembled on-site, eliminating the need for complex reinforcing steel structures connecting adjacent bollard bases. The segmentation allows for simple, modular installation without requiring intricate reinforcement connections between neighboring units.
4Stability of the object's composition
If deep foundations are used for bollards, then stability is improved, but adaptability to site conditions deteriorates
Solution Approach 1:
The base design incorporates adjustable and adaptable features including intermediate panels that can be positioned at different depths and spaced apart to accommodate varying site conditions such as underground obstructions. The panel configuration can be modified during installation to adapt to specific ground conditions while maintaining stability through the reinforcement structures and interconnecting elements.
Solution Approach 2:
The multi-panel base structure serves multiple functions: it provides stability through its reinforced configuration, adapts to various site conditions by adjusting panel placement and depth, facilitates easier installation compared to deep foundations, and maintains impact resistance. This universal design allows the same base structure to be effectively used across different installation scenarios without requiring deep foundations.
Data Source
AI summary
A shallow-mount, stand-alone security bollard includes a bollard post mounted to a base. The bollard post extends upwardly from within an interior space of the base. The base includes interconnected panels, including panels extending around the interior space of the base, and inner panels connected to the bollard post and dividing the interior space.