High-strength steel structure guardrail for high speed

The utility model discloses a high-strength steel structure guardrail for high speed, which comprises a transverse steel beam and side steel plates on two vertical symmetrical sides, and each side steel plate is provided with an upper concave cavity, an upper bulge, a lower concave cavity and a lower bulge. A plurality of supporting plates arranged at intervals are fixedly arranged in the upper concave cavity and the lower concave cavity, a plurality of blocking strips arranged at intervals are fixedly arranged on the outer side walls of the side steel plates, the blocking strips are downwards attached to the outlines of the outer walls of the side steel plates from the tops of the side steel plates and extend to the bottoms of the side steel plates, protruding plates are further arranged at the front ends of the transverse steel beams, and embedding and inserting through grooves are further formed in the rear ends of the transverse steel beams. A bearing plate located under the embedding and inserting throug