The invention discloses a fabricated building
system. The fabricated building
system comprises wallboard
layers,
floor slab layers and vertical connecting pieces, wherein the wallboard
layers comprise a plurality of partition boards, the
floor slab layers are arranged between the upper wallboard layer and the lower wallboard layer in a clamped mode, and first through holes penetrating in the height direction are formed in the
floor slab layers; the vertical connecting pieces penetrate through the first through holes, and the two ends of each vertical connecting piece are inserted and locked into the two partition boards vertically adjacent to the first through hole correspondingly, so that the floor slab layers and the wallboard layers vertically adjacent to the floor slab layers are locked together, reinforcing ribs are arranged in the partition boards, each vertical connecting piece comprises a sleeve and a locking piece, the sleeve sleeves with the locking piece, the sleeve penetrates through the corresponding floor slab layer, and the two ends of the sleeve are inserted into the reinforcing ribs of the floor slab layers and locked through the locking pieces. According to the fabricated building
system, the technical problem that due to the fact that the connecting strength of wallboards and floor slabs of a fabricated building is not enough, the stability of the fabricated building is poor in the prior art is effectively solved, and the beneficial effects that the building is high in stability, reliable in quality, high in safety and long in service life are achieved.