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Intelligent elastic anti-collision device

Release Date：2026-01-13 Page Views：284
Intelligent elastic anti-collision device

1. Appearance and Dimensions

With the growth rate of car ownership significantly higher than that of highways and urban roads, road traffic safety in China is not optimistic. Traffic accidents caused by vehicles crashing into bridge piers, guardrails and other structures occur frequently. In severe cases, they can result in pier collapse, vehicle destruction and casualties, causing irreversible loss of life and property. "Heavy casualties and a high fatality rate" reflect the severe situation of highway traffic safety in China.
Common anti-collision measures usually include warnings, rigid isolation and simple anti-collision facilities. Warning measures can generally reduce the risk of impact, but fail to provide timely protection for bridge piers. With rigid isolation, the protected structures can survive impact, but vehicles suffer severe damage, which indirectly increases accident risks. Simple anti-collision facilities have limited energy dissipation capacity, fail to effectively utilize buffer space, and feature unstable structures prone to fragment splashing. All the above existing technologies need to be further improved.
Our company owns a number of patents and technologies of high-damping, aging-resistant elastic materials for the production of various protective components, using a vacuum integral molding process. Upon impact, the product exhibits fully elastic collision, absorbs high kinetic energy with moderate rebound force, and protects the impacting objects safely.
This product features customizable integral protection and a unique safety reflective design. The anti-collision strips are coated with fluorescent paint to enhance the warning effect, with an elegant and aesthetic overall appearance.
Adopting a modular design, this product is suitable for various structural types of bridge piers.


Device Model

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Device Features

The bridge pier anti-collision equipment has the following features:
◆ Multi-level protection: intact under minor impact, repairable under moderate impact, easily replaceable under severe impact;
◆ 360° protection: withstands loads from all directions, serving as a "protective coat" for bridge piers;
◆ Multi-objective protection: ensures the safety of piers, vehicles and personnel simultaneously;
◆ Modular design: mass-producible, convenient for installation, maintenance and replacement, with low upkeep cost;
◆ Aesthetic appearance: elegant shape that integrates well with roads, bridges and the surrounding environment.


Protection Performance

Computer simulation and finite element analysis were carried out based on test data, combined with real vehicle and bridge pier structures. Simulations of vehicle collision with bridge piers and vehicle collision with the device were performed. The calculation results are shown in the figure.

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Application Cases

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Technical Parameters

Item No.

Technical Index Item

Testing Standard

Fiber Reinforced Composite

1. Tensile strength≥250MPa；

2. Tensile modulus≥2.5GPa；

3. Compressive strength≥200MPa；

4. Flexural strength≥250MPa；

5. Shear strength≥50MPa；

6. Barcol hardness of the shell≥45。

1. GB1446-2005《Test Methods for Properties of Fiber Reinforced Plastics》

2. GB50608-2010《Technical Code for Application of Fiber Reinforced Composite in Construction》

3. GB/T1447-2005《Test Method for Tensile Properties of Fiber Reinforced Plastics》

4. GB1449-2005《Test Method for Flexural Properties of Fiber Reinforced Plastics》

5. GB/T3355-2005《Test Method for In-plane Shear of Fiber Reinforced Plastics》

6. GB/T1463-2005《Test Method for Density and Relative Density of Fiber Reinforced Plastics》

7. GB/T2577-2005《Test Method for Resin Content of Glass Fiber Reinforced Plastics》

8. GB/T3854-2005《Test Method for Barcol Hardness of Reinforced Plastics》

Polymer Closed‑cell Core Material

1. Shear strength≥0.15MPa；

2. Compressive modulus≥3MPa；

3. Compressive strength≥0.15MPa；

4. Water absorption≤3%。

1. GB/T8810-2005《Determination of Water Absorption of Rigid Cellular Plastics》

2. GB/T10007-2008《Test Method for Shear Strength of Rigid Cellular Plastics》

3. GB/T1453-2005《Test Method for Flat Compression Properties of Sandwich Constructions or Cores》

Overall Performance of Composite Anti‑collision Block

   1. Appearance dimensions: Deviations in length, width, diameter, height and other dimensions shall not exceed 5% of the design dimensions;

2. Service life: No less than 20 years;

3. Appearance flatness: < 10 mm.

JT/T1061-2016《Attached Flexible Anti-vehicle-collision Devices for Bridge Piers》

On-site Acceptance Standard

The on-site supervisor shall inspect the product’s appearance dimensions, color and installation position against the relevant construction drawings to ensure construction in accordance with the drawings, with errors within the allowable range.


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