A symbiosis of two construction materials - how was it developed?


Recent accidents have shown that there are considerable weaknesses in constructions routinely used until today as transitions between steel guardrails and concrete safety barriers.
That is why BASt recommended that the Federal Transport Ministry withdraw its circular ARS 17/1996 on the retrofitting of transition elements to prevent, wherever possible, the production of such units in the future. BASt also pointed out that from now on industry would be responsible for developing better designed transitions and it should test them according to DIN EN 1317.

From the above we can conclude that there are two main requirements which must be fulfilled when designing “safe” transitions from steel to concrete barriers:

a) On the one hand the system must be capable of safely redirecting a truck without subjecting its occupants to excessive stress upon impact.

b) The system must be capable of absorbing the high impact energy of heavy vehicles such as buses or trucks.

The companies HERMANN SPENGLER GmbH & Co. KG and VOLKMANN & ROSSBACH GmbH & Co. KG have successfully solved the task of connecting a solid concrete crash barrier to a resilient, deformable steel structure which is rammed into the ground: This was the birth of the BeStCONNECT product line.



An overview of our BeStCONNECT products:


(tried-and-tested transition to connect simple guardrail with a concrete barriers)

(tried-and-tested transition to connect Super-Rail with a concrete barrier)


(tried-and-tested transition to connect Super-Rail ECO with a concrete barrier)