Semi-rigid bridge anti-collision guardrail

The invention discloses a semi-rigid bridge anti-collision guardrail. The anti-collision guardrail comprises a plurality of guardrail steel framework structures which are sequentially connected, and the plurality of guardrail steel framework structures which are sequentially connected form a multiple arch structure; the guardrail steel framework structures comprise steel longitudinal beams, archedsteel pipes and two steel vertical columns, the two ends of the steel longitudinal beams are fixedly connected with the two steel stand columns respectively, and the two ends of the arched steel pipes are fixedly connected with the two steel vertical columns respectively; inhaul cables are anchored between the steel vertical columns at the two ends of the multiple arch structure; in the steel longitudinal beams, the arched steel pipes and the inhaul cables, the steel longitudinal beams are arranged close to one side of a bridge deck in the direction of the width of the bridge deck; the archedsteel pipes are arranged