Breakwaters play a huge role on roads. When the impact force acts on the W beam guardrail, the components interact with each other, and the deformation of the block and wave guardrail can better absorb the collision energy and change the driving direction of the vehicle. Prevent the vehicle from running off the road or facing the lane, which could cause more damage.

Its components mainly include: wave guardrail, column, splicing bolts, block or bracket, end, column cap, etc., the connection between wave guardrail and column is block or bracket. The road anti-collision barrier has different anti-collision grades, among which there are differences between the anti-block and the bracket. The blocking block adopts hollow hexagonal structure design to bear the action of external force.

The block can effectively absorb energy through deformation and reduce the deformation of column and roadbed. If there is no blocking component, only the guardrail, column and subgrade function will force the vehicle to stop, the effect will be poor, so the waveform between the guardrail and guardrail added a blocking block column will greatly increase the anti-collision coefficient, blocking block is better than the bracket. Of course, the price of anti-caking is also higher than the price of the stent.

Therefore, in the highway guardrail, 4 mm thick corrugated guardrail and 140 mm diameter cylinder are used, with anti-blocking device. The speed of traffic is also much slower on ordinary roads or on certain rural roads. Typically, corrugated guardrails of 3mm thickness, 140 struts and brackets of 114mm diameter are used.

Post time: Aug-10-2022