The invention discloses a prefabricated platform plate construction method and a prefabricated platform plate cup
rabbet thereof, and belongs to the technical field of
engineering construction.The construction method comprises the steps that S1, a
station structure bottom plate is constructed, and a platform plate placing area with reserved cup
rabbet vertical ribs is divided during construction; s2, a supporting component capable of reaching the preset elevation is placed at the position, corresponding to the cup opening web plate, in the cup opening vertical rib, and a prefabricated platform plate is placed; and S3, cup opening transverse bars are bound, and a formwork is erected to pour a cup opening. The prefabricated platform plate cup
rabbet comprises a cup rabbet with a U-shaped section, the cup rabbet comprises a cup rabbet
flange and a cup rabbet web, cup rabbet vertical ribs are arranged in the cup rabbet
flange, and cup rabbet transverse ribs and supporting components are arranged in the cup rabbet web. The preset elevation is adjusted firstly through the supporting component, pouring of the cup rabbet can be conducted after the prefabricated platform plate is placed, the cup rabbet strength
waiting time does not exist before the prefabricated platform plate is placed, the problems that the cup rabbet cannot meet the preset elevation and needs follow-up treatment and the cup rabbet is cracked up in the placing process do not exist, and therefore the installation efficiency and the installation precision are improved.