Cast-in-situ concrete hollow slab

[0086] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0087]As shown in the accompanying drawings, the present invention includes a reinforced concrete 1, a lightweight carcass 2, the lightweight carcass 2 is wrapped in the reinforced concrete 1, and the lightweight carcass 2 includes a top plate 3, a surrounding side plate 4, a lower bottom 5, The cavity 6, the top plate 3, the surrounding side plates 4, and the lower bottom 5 surround each other to form a cavity 6, and at least one of the top plate 3, the surrounding side plates 4 or the lower bottom 5 is wrapped with a soft layer 7, and the lightweight carcass 2 The surrounding side walls 4 are cast-in-place reinforced concrete ribs 8 formed by reinforced concrete 1, which is characterized in that the soft layer 7 is superimposed on the outer surface of the top plate 3, the surrounding side walls 4 or the lower bottom 5, and the top plate 3, The surrounding side panels 4 or the lower bottom 5 are hard layers, and the outer surface of the soft layer 7 has a reinforcing layer 10 to prevent damage to the soft layer. Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention. In the attached drawings, 1 is reinforced concrete, 2 is lightweight carcass, 3 is top plate, 4 is surrounding side plate, 5 is lower bottom, 6 is cavity, 7 is soft layer, 8 is cast-in-place reinforced concrete rib, In the following drawings, those with the same number have the same description. As shown in Figure 1, the lightweight carcass 2 is wrapped in reinforced concrete 1, surrounded by the top plate 3, the surrounding side plates 4, and the lower bottom 5 to form a lightweight carcass 2 with a cavity 6, and the top plate 3 is laminated with The soft layer 7 is superimposed on the outer surface of the top plate 3, and the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers. As shown in Fig. 10, a lightweight layer 7 is stacked on the top plate 3 of the lightweight carcass 2, and the outer surface of the lightweight layer 7 has a reinforcing layer 10 to prevent the light layer from being damaged.

[0088] As shown in the accompanying drawings, the present invention includes a reinforced concrete 1, a lightweight carcass 2, the lightweight carcass 2 is wrapped in the reinforced concrete 1, and the lightweight carcass 2 includes a top plate 3, a surrounding side plate 4, a lower bottom 5, The cavity 6, the top plate 3, the surrounding side plates 4, and the lower bottom 5 surround each other to form a cavity 6, and at least one of the top plate 3, the surrounding side plates 4 or the lower bottom 5 is wrapped with a soft layer 7, and the lightweight carcass 2 The surrounding side walls 4 are cast-in-place reinforced concrete ribs 8 formed by reinforced concrete 1, which is characterized in that the soft layer 7 is superimposed on the outer surface of the top plate 3, the surrounding side walls 4 or the lower bottom 5, and the top plate 3, The surrounding side plates 4 or the lower bottom 5 are hard layers, and the top plate 3 has a soft layer 7 on one side. As shown in Fig. 1, Fig. 2 and Fig. 3, the soft layer 7 is laminated on the outer surface of the top plate 3, and the top plate 3 has a soft layer 7 on one side.

[0089] As shown in the accompanying drawings, the present invention includes a reinforced concrete 1, a lightweight carcass 2, the lightweight carcass 2 is wrapped in the reinforced concrete 1, and the lightweight carcass 2 includes a top plate 3, a surrounding side plate 4, a lower bottom 5, The cavity 6, the top plate 3, the surrounding side plates 4, and the lower bottom 5 surround each other to form a cavity 6, and at least one of the top plate 3, the surrounding side plates 4 or the lower bottom 5 is wrapped with a soft layer 7, and the lightweight carcass 2 The surrounding side walls 4 are cast-in-place reinforced concrete ribs 8 formed by reinforced concrete 1, which is characterized in that the soft layer 7 is superimposed on the outer surface of the top plate 3, the surrounding side walls 4 or the lower bottom 5, and the top plate 3, The surrounding side plates 4 or the lower bottom 5 are hard layers, and the top plate 3 has a soft layer 7 with a reinforced layer on one side. As shown in Fig. 1, Fig. 2 and Fig. 3, the soft layer 7 is laminated on the outer surface of the top plate 3, and the top plate 3 has a soft layer 7 with a reinforcing layer on one side.

[0090] The present invention is also characterized in that the soft layer 7 is a block profile made of foamed plastics, expanded perlite, expanded vermiculite, foamed or aerated soft concrete. As shown in Figure 1, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, the top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is laminated on the top plate 3 On the outer surface of the top plate 3, the surrounding side panels 4 and the bottom 5 are hard layers, and the soft layer is a block profile, and the soft layer 7 shown in the figure is a foamed plastic.

[0091] The present invention is also characterized in that the soft layer 7 is assembled from block profiles. Fig. 2 is a structural schematic diagram of embodiment 2 of the present invention, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7, which is described The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, the soft layer is a block profile, and the soft layer 7 is a block shape The profiles are assembled.

[0092] The present invention is also characterized in that the soft layer 7 is integrally formed as an integral block shape. Fig. 3 is a schematic structural view of Embodiment 3 of the present invention, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 is wrapped with a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, the soft layer is a block profile, and the soft layer 7 is integrally formed The overall block profile.

[0093] The present invention is also characterized in that the block profiles of the soft layer 7 are arranged at intervals. Fig. 4 is a schematic structural view of Embodiment 4 of the present invention, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the soft layer 7 is a block profile, and the soft layer 7 is 4 pieces of expanded perlite Interval set composition.

[0094] The present invention is also characterized in that there are hard reinforcing ribs 9 in the intervals between the block profiles of the soft layer 7 . Fig. 5 is a structural schematic diagram of Embodiment 5 of the present invention, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the soft layer is a block profile, and the multiple expanded perlite blocks of the soft layer 7 are There are hard reinforcing ribs 9 in the interval of the shaped profile.

[0095] The present invention is also characterized in that the soft layer 7 is composed of at least two soft block shapes with different hardness and softness. Fig. 6 is a schematic structural view of Embodiment 6 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the soft layer 7 is a block profile, and the soft layer 7 is a plurality of soft and hard layers. A combination of soft block profiles.

[0096] The present invention is also characterized in that the soft layer 7 and the hard layer are bonded and laminated into one. Fig. 7 is a structural schematic diagram of Embodiment 7 of the present invention, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top board 3, the top board 3, the surrounding side boards 4 and the lower bottom 5 are hard layers, and the soft layer 7 is a block profile, and the soft layer 7 and the superimposed hard layer The layers are glued and laminated into one.

[0097] The present invention is also characterized in that the two layers of the soft layer 7 and the hard layer are laminated by condensation and hardening of the wet slurry layer. As shown in Figure 7, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is laminated on the top plate 3. On the outer surface of the roof, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, the soft layer 7 is a block profile, and the soft layer 7 and the superimposed hard layer are glued and laminated into one. The two-layer lamination of the soft layer 7 and the hard layer is formed by condensation and hardening of the wet slurry layer.

[0098] The present invention is also characterized in that the two layers of the soft layer 7 and the hard layer are laminated by hard prefabricated layers. Fig. 8 is a schematic structural view of Embodiment 8 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, the soft layer 7 is a block profile, and the soft layer 7 and the superimposed hard layer are cemented layers. Synthesized, the two layers of the soft layer 7 and the hard layer are laminated by hard prefabricated layers.

[0099] The present invention is also characterized in that the two-layer lamination of the soft layer 7 and the hard layer is formed by bonding and laminating one hard prefabricated layer and one wet slurry layer. Fig. 9 is a schematic structural view of Embodiment 9 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 is wrapped with a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, the soft layer 7 is a block profile, and the soft layer 7 and the superimposed hard layer are cemented layers. Synthetic, its described soft layer 7 and two-layer superposition of hard layer are formed by bonding and laminating one layer of hard prefabricated layer and one layer of wet slurry layer.

[0100] The present invention is also characterized in that the outer surface of the soft layer 7 has a reinforcement layer 10 to prevent the soft layer from being damaged. Fig. 10 is a schematic structural view of Embodiment 10 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 is wrapped with a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the outer surface of the soft layer 7 has a reinforcing layer 10 to prevent the soft layer from being damaged.

[0101] The present invention is also characterized in that the outer surface of the soft layer 7 has a waterproof or anti-seepage layer 11 . Fig. 11 is a schematic structural view of Embodiment 11 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the outer surface of the soft layer 7 has a layer of waterproof or anti-seepage layer 11, as shown in the figure Layer 11 is a plastic film.

[0102] The present invention is also characterized in that the soft layer 7 is formed by laminating at least two layers of soft materials with different hardness. Fig. 12 is a schematic structural view of Embodiment 12 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the soft layer 7 is formed by laminating two layers of soft materials with different hardness.

[0103] The present invention is also characterized in that at least one positioning structure 12 is provided on the outer wall of the lightweight carcass. The positioning structure 12 is at least one of a positioning foot, a positioning block, a positioning nail, a positioning cable, and a positioning hook. Fig. 13 is a schematic structural view of Embodiment 13 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 contains a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and a plurality of positioning structures 12 are arranged on the outer wall surface of the lightweight carcass, as shown in the figure. Structure 12 is a positioning foot.

[0104] The present invention is also characterized in that at least one corner portion of the lightweight carcass is provided with at least one of a recessed corner 13 , a chamfered corner 14 or an arc-shaped corner 15 . Fig. 14 is a schematic structural view of Embodiment 14 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is superimposed on the outer surface of the lower bottom 5. , the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the corners of the lightweight carcass are provided with internal corners 13 and chamfers 14.

[0105] The present invention is also characterized in that all the corners of the lightweight carcass are set as chamfers 14 or curved corners 15 . Fig. 15 is a schematic structural view of Embodiment 15 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the corners of the lightweight carcass are provided with arc angles 15, and all the corners mentioned above are Set to Arc Angle 15.

[0106] The present invention is also characterized in that the corners where the surrounding side panels 4 of the lightweight carcass intersect are all set as internal corners 13 . Fig. 16 is a schematic structural view of Embodiment 16 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is laminated on the outside of the surrounding side plates 4. On the surface, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the corners of the lightweight carcass are provided with inner corners 13, and the corners where the surrounding side plates 4 of the light carcass intersect are all Set to 13 for female corners.

[0107]The present invention is also characterized in that the corners where the surrounding side panels 4 of the lightweight carcass intersect with the lower bottom 5 are all set as internal corners 10 . Fig. 17 is a schematic structural view of Embodiment 17 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the corners of the lightweight carcass are provided with inner corners 13, and the surroundings of the lightweight carcass The corners where the side panels 4 intersect with the lower bottom 5 are all set as internal corners 13 .

[0108] The present invention is also characterized in that at least one of the top panel 3 , surrounding side panels 4 , lower bottom 5 or soft layer 7 contains a reinforcement 16 , and the reinforcement 16 is also exposed outside the lightweight carcass. Reinforcement 13 is steel bar, prestressed steel bar, prestressed steel wire, steel wire, steel wire mesh, steel mesh, steel mesh, perforated steel plate, fiber, fiber mesh cloth, steel fiber, non-woven fabric, braided belt, packing belt, strip steel , At least one of glass fiber cloth. Fig. 18 is a schematic structural view of Embodiment 18 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is laminated on the outside of the surrounding side plates 4. On the surface, the top board 3, the surrounding side boards 4 and the lower bottom 5 are hard layers, and the top board 3 and the surrounding side boards 4 contain reinforcements 16, and the reinforcements 16 shown in the figure are steel wire mesh.

[0109] The present invention is also characterized in that at least one groove 17 is provided on at least one of the top plate 3 , the surrounding side plate 4 or the lower bottom 5 of the lightweight carcass. Fig. 19 is a schematic structural view of Embodiment 19 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the soft layer 7 of the lightweight carcass and the surrounding side plates 4 are provided with grooves 17.

[0110] The present invention is also characterized in that at least one stiffening piece 18 is arranged in the cavity 4 of the lightweight carcass, and the stiffening piece 18 is at least one of stiffening ribs, stiffening rods, reinforcing ribs or reinforcing cables. Fig. 20 is a schematic structural view of Embodiment 20 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the cavity 4 of the lightweight carcass is provided with stiffeners 18, the stiffeners are shown in the figure 18 is a stiffener.

[0111] The present invention is also characterized in that a transport hanger 19 is arranged on the lightweight carcass. Fig. 21 is a schematic structural view of Embodiment 21 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the cavity 4 of the lightweight carcass is provided with a stiffener 18, which is a reinforcing rib. The lightweight carcass is provided with a transport hanger 19 . Fig. 22 is a schematic structural view of Embodiment 22 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, the cavity 4 of the lightweight carcass is provided with a stiffener 18, and the stiffener 18 is a stiffening rod. The lightweight carcass is provided with a transport hanger 19, and the illustrated transport hanger 19 is a hook.

[0112] The present invention is also characterized in that said transport hanger 19 is a hook or ring extending outward from the stiffener 18, or the transport hanger 19 is also connected to the reinforcement 16 in the top plate 3 or the stiffener 18 or the lower bottom 5. connected. Fig. 23 is a schematic structural view of Embodiment 23 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the cavity 4 of the lightweight carcass is provided with a stiffener 18, which is a reinforcing rib. The transport hanger 19 is a hook extending outward from the stiffener 18 , and the transport hanger 19 is also connected to the reinforcement 16 in the lower bottom 5 . Fig. 24 is a schematic structural view of Embodiment 24 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the cavity 4 of the lightweight carcass is provided with a stiffener 18, which is a reinforcing rib. The handling hanger 19 is connected to the reinforcement 16 in the lower bottom 5 .

[0113] The present invention is also characterized in that the transport hanger 19 is located in the middle of the top plate 3, and is recessed on the outer surface of the top plate 3 or the soft layer 7, or is flush with the surface of the top plate 3 or the soft layer 7. Fig. 25 is a schematic structural view of Embodiment 25 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 contains a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the handling and hanging parts 19 are located in the middle of the top plate 3 and are sunk in the outer surface of the soft layer 7 , flush with the surface of the soft layer 7 , and the soft layer 7 is also provided with grooves 17 as shown in the figure.

[0114] The present invention is also characterized in that there are grooves 17 or pits 20 on the soft layer 7 , or there are transport hangers 19 in the grooves 17 or pits 20 of the soft layer 7 . Fig. 26 is a schematic structural view of Embodiment 26 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is superimposed on the outer surface of the lower bottom 5. , the top plate 3, the surrounding side plates 4 and the bottom 5 are hard layers, and there are pits 20 on the soft layer 7 described in it, and there are transport hangers 19 in the pits 20 of the soft layer 7.

[0115] The present invention is also characterized in that the transport hanger 16 is arranged at the midpoint of the top plate 3 or the surrounding side plates 4 or the lower bottom 5 . As shown in Figure 26, the top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is superimposed on the outer surface of the lower bottom 5. The top plate 3, the surrounding sides The board 4 and the lower bottom 5 are hard layers, and the soft layer 7 has pits 20, and the pits 20 of the soft layer 7 have a transport hanger 19, and the transport hanger 19 is arranged on the lower bottom 5. midpoint.

[0116] The present invention is also characterized in that at least one convex module 18 is provided on at least one peripheral side panel 4 of said lightweight carcass. Fig. 27 is a schematic structural view of Embodiment 27 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and a plurality of convex modules 21 are arranged on the surrounding side plates 4 of the lightweight carcass.

[0117] The present invention is also characterized in that at least one of the threading pipe 22 , junction box 23 or water pipe 24 is arranged in the lightweight carcass. Fig. 28 is a schematic structural view of Embodiment 28 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the light-weight carcass is provided with a threading pipe 22 and a junction box 23, as shown in the figure. A groove 17 is arranged on the layer 7, and the threading pipe 22 extends out of the formwork along the groove 17. Fig. 29 is a schematic structural view of Embodiment 29 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is laminated on the outside of the surrounding side plates 4. On the surface, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and water pipes 24 are arranged in the lightweight carcass.

[0118] The present invention is also characterized in that the lower bottom 5 protrudes out of the surrounding side plates 4 to form a pick plate 25 . Fig. 30 is a schematic structural view of Embodiment 30 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6. The top plate 3 is wrapped with a soft layer 7, and the soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the lower bottom 5 stretches out of the surrounding side plates 4 to form a pick plate 25.

[0119] The present invention is also characterized in that a rod mold for forming a pouring hole 26 is also arranged in the lightweight carcass, or a reinforcement 16 is also arranged in the hole 26 . Fig. 31 is a schematic structural view of Embodiment 31 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and a rod mold forming a pouring hole 26 is also arranged in the light carcass.

[0120] The present invention is also characterized in that the lightweight carcass is also provided with a connecting piece 27 for connecting the lightweight carcass to each other. Fig. 32 is a schematic structural view of Embodiment 32 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the top plate 3 contains a soft layer 7. The soft layer 7 is superimposed on the outer surface of the top plate 3, the top plate 3, the surrounding side plates 4 and the lower bottom 5 are hard layers, and the light carcass described above is also provided with a joint for connecting the light carcass to each other. piece 27.

[0121] The present invention is also characterized in that at least one of the top plate 3, the surrounding side plates 4 or the lower bottom 5 has a layered structure of at least two layers, the layered structure is a layer of cement, and a layer of reinforcement is laid on it. 16. Lay a layer of cement on the reinforcement 16, so that multiple layers are laminated and cemented. Fig. 33 is a schematic structural view of Embodiment 33 of the present invention. The top plate 3, the surrounding side plates 4, and the lower bottom 5 enclose a lightweight carcass 2 with a cavity 6, and the soft layer 7 is laminated on the outside of the surrounding side walls 2. On the surface, the top board 3, the surrounding side boards 4 and the lower bottom 5 are hard layers, and the top board 3 and the surrounding side boards 4 are a multi-layered layered structure, and the layered structure is a layer of cement, on which A layer of reinforcement 16, and then a layer of cement is laid on the reinforcement 16, so that multiple layers are laminated and cemented.

[0122] The present invention is also characterized in that the top plate 3 of the lightweight carcass 2 has an upper plate 32 of cast-in-place reinforced concrete, and the lower part of the lower bottom 5 has a lower plate 33 of cast-in-place reinforced concrete. Fig. 1 is the structural representation of embodiment 1 of the present invention, and the top plate 3 of lightweight carcass 2 has cast-in-place reinforced concrete upper plate 32, and the bottom of lower bottom 5 has cast-in-situ reinforced concrete lower plate 33.

[0123] The present invention is also characterized in that the top plate 3 of the lightweight carcass 2 has no cast-in-place reinforcement upper plate 32, and the upper surface of the top plate 3 is flush with the upper surface of the cast-in-place concrete hollow plate. Fig. 35 is a schematic structural view of Embodiment 35 of the present invention. The top plate 3 of the lightweight carcass 2 has no cast-in-place reinforcement upper plate 32, and the upper surface of the top plate 3 is flush with the upper surface of the cast-in-place concrete hollow plate.

[0124] The present invention is also characterized in that the lower part of the lightweight carcass 2 does not have a cast-in-place reinforced concrete lower plate 33, and the lower surface of the lightweight carcass 2 is flush with the lower surface of the cast-in-place concrete hollow slab. Fig. 34 is a schematic structural view of Embodiment 34 of the present invention. The lower part of the lightweight carcass 2 does not have a cast-in-place reinforced concrete lower plate 33, and the lower surface of the lower bottom 5 is flush with the lower surface of the cast-in-place concrete hollow plate.

[0125] The present invention is also characterized in that the top plate 3 of the lightweight carcass 2 has no cast-in-place reinforcement upper plate 32, the upper surface of the top plate 3 is flush with the upper surface of the cast-in-place concrete hollow plate, and the lower part of the lightweight carcass 2 has no Cast-in-situ reinforced concrete lower plate 33. Figure 36 is a schematic structural view of Embodiment 36 of the present invention, the top plate 3 of the lightweight carcass 2 has no cast-in-place reinforcement upper plate 32, the upper surface of the top plate 3 is flush with the upper surface of the cast-in-place concrete hollow slab, and the lightweight carcass 2 There is no cast-in-place reinforced concrete lower slab 33 in the bottom of the bottom 5, and the lower surface of the lower bottom 5 is flush with the lower surface of the cast-in-situ concrete hollow slab.

[0126] The present invention is also characterized in that the said cast-in-place concrete hollow slab contains prestressed tendons 28 . Fig. 37 is a schematic structural view of embodiment 37 of the present invention, in which the cast-in-place concrete hollow slab contains prestressed tendons 28 .

[0127] The present invention is also characterized in that the cast-in-place concrete hollow slab contains steel frames 29 . Fig. 38 is a schematic structural view of embodiment 38 of the present invention, in which the cast-in-place concrete hollow slab contains steel frames 29 .

[0128]The present invention is also characterized in that hidden beams 30 and exposed beams 31 are also arranged in the cast-in-situ concrete hollow slab. As shown in Fig. 37 and Fig. 38, hidden beams 30 are also arranged in the cast-in-place concrete hollow slabs, and Fig. 39 is a schematic structural diagram of embodiment 39 of the present invention, and exposed beams 31 are also arranged in the cast-in-place concrete hollow slabs.

[0129] During the implementation of the present invention, first install the support or formwork according to the construction requirements, lay the lightweight carcass 2, then lay the steel bars or the steel bars of the hidden beams 30 or the exposed beams 31, and various pipeline embedded parts, and pour concrete after acceptance. After the concrete is solidified and hardened, it is cured to the specified age, and the formwork is removed to obtain the cast-in-place reinforced concrete slab.