Special corrugated beam steel guardrail for expressway

The utility model discloses a special corrugated beam steel guardrail for an expressway, which belongs to the technical field of expressway guardrails and comprises a corrugated plate, rectangular plates are integrally formed at two ends of the corrugated plate, an arc-shaped reinforcing plate is welded in a groove in one side of the corrugated plate, and an umbrella-shaped supporting block is protruded on the inner wall of the arc-shaped reinforcing plate. Rectangular plates at the two ends of the corrugated plate are attached to the two ends of a plate body of the C-shaped plate, a verticalplate body is arranged in the middle of the plate body of the C-shaped plate, an arc-shaped reinforcing plate is welded to the back face of the groove of the corrugated plate, and the umbrella-shapedsupporting block at the front end of the arc-shaped reinforcing plate abuts against the back face of the groove of the corrugated plate. When the corrugated plate is impacted, the groove in the back face of the corrugated plat