DOLRE H233 LNA on non-anchored kerb (TL4 according to MASH*)

* determined by numerical computation

The efforts transmitted to the deck are the lowest on the market:
 

M= 0 kNm (no tensile anchorage)

V= 43 kN / post

Briefly ...


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:

  • Minimum containment level: H2 (=TL4)

  • Maximum working widthe : Wn 3

  • Vehicle intrusion = VIn 3

  • Acceleration Severity Index (ASI) =  ASI B

The additional features are:

  • Minimum distance between posts = 2 m

  • 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 = 40 cm

  • For aesthetic reasons, the longitudinal elements are tubes with a diameter of: 12 cm +/- 1 cm

  • For aesthetic reasons, the connections between the longitudinal elements are not visible on the 180° front panel (the fixing points will only be located on the 180° rear panel)

  • The kerb is not anchored to the deck and a counter-feed is put in place to resume horizontal forces.

  • To limit or even avoid reinforcements, the forces transmitted by post are M=0 kNm, V=43 kN