Support-free sandwich laminated slab

The utility model relates to a support-free sandwich laminated slab, which comprises a first concrete layer, a second concrete layer, a reinforcing mesh, a plurality of steel beams, a sandwich panel and shear-resistant pieces, the plurality of steel beams are longitudinally or transversely distributed on the reinforcing mesh and fixed, and the plurality of shear-resistant pieces are welded on the top of each steel beam. The first concrete layer is poured to the position above the reinforcing mesh and does not exceed the tops of the steel beams, the sandwich panel is arranged between the two steel beams, and the second concrete layer is poured to the position above the sandwich panel and does not exceed the shear-resistant piece. The heat preservation and sound insulation performance of the support-free sandwich laminated slab is superior to that of a common floor slab, the support-free sandwich laminated slab can be used for parts with high sound insulation and shock absorption requirements, and the building