Steel guardrail base and bridge deck slab integrated prefabricated slab, prefabricated formwork and construction method

The invention discloses a steel guardrail base and bridge deck slab integrated prefabricated slab. A bridge deck slab and a steel guardrail base are integrally prefabricated and formed. The prefabricated slab comprises a bottom plate, a first side plate, a comb plate, a blocking plate and a second side plate; the comb plate, the blocking plate, the first side plate and the bottom plate define a bridge deck concrete pouring area, and the first side plate and the second side plate define a steel guardrail base concrete pouring area; the invention further discloses a construction method of the steel guardrail base and bridge deck slab integrated prefabricated slab. The bridge deck slab and the steel guardrail base of the prefabricated slab are integrally prefabricated and formed, so the prefabricated slab is good in integrity and quality; integrated prefabrication of the steel guardrail base and the bridge deck is achieved through the prefabrication formwork, the construction efficiency is high, and the cost is