Connecting structure for truss rib and plate bottom rib of assembly type laminated plate

A truss rib and plate bottom rib connecting structure of an assembly type laminated plate comprises a concrete bottom plate, transverse plate bottom ribs, first longitudinal plate bottom ribs and truss ribs, and the multiple first longitudinal plate bottom ribs and the multiple truss ribs are longitudinally arranged in the length direction of the concrete bottom plate at intervals. Two second longitudinal plate bottom ribs are in lap joint with the bottoms of the truss ribs located on the longitudinal supporting positions, the two second longitudinal plate bottom ribs are in lap joint with the two ends of the truss bottom ribs respectively, and the two second longitudinal plate bottom ribs penetrate through gaps in the side faces of the bottom of the support and then are in lap joint with the two ends of the truss bottom ribs respectively. One ends of the two second longitudinal plate bottom ribs are overlapped with the truss bottom ribs, and the other ends of the two second longitudinal plate bottom ribs lon