Bridge concrete crash barrier

The invention relates to a bridge concrete crash barrier and belongs to the field of crash barrier devices. The bridge concrete crash barrier comprises elastic buffering layers, streamline anti-collision structures, backing boards, anchor bolts and a bridge barrier; a plurality of anti-collision devices consisting of the elastic buffering layers, the streamline anti-collision structures, the backing boards and the anchor bolts are arranged on the bridge barrier in the direction of the bridge barrier; and the backing boards are arranged between the anti-collision devices and the bridge barrierand connected with the bridge barrier through the anchor bolts. When a runaway vehicle collides with the bridge barrier, energy is absorbed through deformations of the anti-collision devices to bufferthe collision; and then through contacts between the vehicle and the follow-up anti-collision devices, the anti-collision devices continuously deform to absorb energy to adjust the direction of the runaway vehicle so that the