Detachable steel bar truss floor support plate formwork system and overall construction method

The invention relates to a detachable steel bar truss floor support plate formwork system and an overall construction method. The detachable steel bar truss floor support plate formwork system is characterized by comprising a building formwork body, fastening connecting pieces, steel bar trusses and cement cushion blocks, wherein a plurality of cement cushion blocks are uniformly distributed on the upper surface of the building formwork body at intervals in an array limiting and inserting manner, the fastening connecting pieces are evenly distributed on the steel bar trusses at intervals, the steel bar trusses are placed on cement cushion blocks, and each steel bar truss is connected with the building formwork body through the multiple fastening connecting pieces located in one row to form an integral formwork. The formwork system can be repeatedly used, the engineering cost is saved, the assembling and disassembling efficiency of a construction site is improved, the construction period is shortened, and the