Briefly ...

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Steel restraint systems are linear elements designed to straighten the path of vehicles. They are made by assembling steel components.

 

In accordance with NBN EN 1317-1/2/5, the performance are:

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• Minimum containment level: N2 (=TL2)

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• Maximum working width : Wn 3

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• Vehicle intrusion : VIn 3

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• Acceleration Severity Index (ASI) :  ASI B

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The additional features are:

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• To ensure the guardrail function, the overall height in relation to the concrete support ≥1,20 m

• To limit the influence on the structure, the maximum space requirement between front and rear post face = 47 cm

• To limit or even avoid reinforcements, the forces transmitted by post 4.0 are M=11 kNm, V=44 kN

• For maintenance reasons and possible in situ push tests the fussible system it is located outside of the anchorage, meaning , on the post.

Guardrail fonction:

• Handrail height at 1.2m.

• Filling preventing the passage of a 15cm diameter cylinder.

• CE certification of the entire system (slide + filling).