Anti-seepage reinforced composite floor slab structure

Abstract

The utility model discloses an anti-seepage reinforced composite floor slab structure. The anti-seepage reinforced composite floor slab structure comprises a prefabricated slab, an internal steel bar assembly, a steel tie assembly, a first meshing groove structure, a second meshing groove structure and a cast-in-place slab. The internal steel bar assembly is arranged in the prefabricated plate, the two ends of the prefabricated plate are inserted into the shear walls on the two sides correspondingly, and first meshing groove structures are formed in the two ends of the prefabricated plate, so that the two ends of the prefabricated plate are connected with the shear walls on the two sides in a meshing mode through the first meshing groove structures correspondingly; the cast-in-place slab is poured at the top of the pre-buried slab, one end of the steel tie bar assembly is pre-buried in the prefabricated slab, and the other end of the steel tie bar assembly extends to the position above the prefabricated slab and is located in the cast-in-place slab; second meshing groove structures are formed in the side edges of the prefabricated slabs, and every two adjacent prefabricated slabs are connected in a meshing mode through the corresponding second meshing groove structures. The utility model relates to the technical field of building prefabricated parts, and can solve the problems of easy leakage and insufficient occlusion performance between a prefabricated plate and a shear wall as well as between the prefabricated plate and a cast-in-place plate in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of building prefabricated components, in particular to an anti-seepage reinforced composite floor structure. Background Art

[0002] Composite floor slab is an assembled integral floor slab composed of precast slab and cast-in-place reinforced concrete layer. Composite floor slab has good integrity, and the upper and lower surfaces of the slab are flat, which is convenient for finishing layer decoration. It is suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity. The precast slab is not only one of the components of the floor slab structure, but also a permanent formwork for the cast-in-place reinforced concrete composite layer.

[0003] During the construction of the composite floor slab in the prior art, leakage is likely to occur between the composite floor slab and the shear wall, and between the precast slab and the cast-in-place slab, due to the sequential casting of the structure between the composite floor slab and the shear wall. At the same time, the interlocking performance between the precast slab and the shear wall, and between the precast slab and the cast-in-place slab is insufficient, which easily causes the floor slab structure to have insufficient structural strength. Therefore, it is necessary to provide an anti-seepage reinforced composite floor slab structure that can solve the problems of easy leakage and insufficient interlocking performance between the precast slab and the shear wall, and between the precast slab and the cast-in-place slab in the prior art. Summary of the invention

[0004] The utility model aims to provide an anti-seepage reinforced composite floor structure, which can solve the problems of easy leakage and insufficient bite performance between prefabricated panels and shear walls and between prefabricated panels and cast-in-place panels in the prior art.

[0005] The utility model is achieved in this way:

[0006] A waterproof reinforced composite floor structure comprises a prefabricated plate, an internal steel bar assembly, a tie steel bar assembly, a first bite groove structure, a second bite groove structure and a cast-in-place plate; the internal steel bar assembly is arranged inside the prefabricated plate, and both ends of the prefabricated plate are respectively inserted into the shear walls on both sides, and the first bite groove structure is formed at both ends of the prefabricated plate, so that the two ends of the prefabricated plate are respectively bite-connected with the shear walls on both sides through the first bite groove structure; the cast-in-place plate is cast on the top of the prefabricated plate, one end of the tie steel bar assembly is embedded in the prefabricated plate, and the other end of the tie steel bar assembly extends to the top of the prefabricated plate and is located in the cast-in-place plate; the second bite groove structure is formed at the side edge of the prefabricated plate, and two adjacent prefabricated plates are bite-connected through the second bite groove structure.

[0007] The internal steel bar assembly includes transverse steel bars and vertical steel bars; the transverse steel bars are arranged along the length direction of the prefabricated plate, and a plurality of transverse steel bars are arranged at intervals along the width direction of the prefabricated plate; a plurality of vertical steel bars are vertically overlapped with a plurality of transverse steel bars to form a mesh steel bar structure, and the tie steel bar assembly is overlapped on the plurality of vertical steel bars.

[0008] Both ends of the plurality of transverse steel bars extend to the outside of the prefabricated slab and are inserted into the shear walls on both sides.

[0009] Both ends of the plurality of vertical steel bars extend to the outside of the prefabricated panels respectively and are inserted into the connection area of ​​two adjacent prefabricated panels.

[0010] The tie steel bar assembly includes tension steel bars and auxiliary steel bars; a plurality of tension steel bars are overlapped on a plurality of vertical steel bars respectively, and a plurality of wave peak structures are formed on each tension steel bar, so that the upper parts of the plurality of wave peak structures extend to the top of the prefabricated slab and are inserted into the cast-in-place slab; the plurality of wave peak structures on the plurality of tension steel bars are aligned, so that the plurality of auxiliary steel bars can be respectively and correspondingly passed through the plurality of wave peak structures of the plurality of tension steel bars and overlapped and fixed with the top of the wave peak structures, and the plurality of auxiliary steel bars are located in the cast-in-place slab.

[0011] The length direction of the pulling steel bar is parallel to the length direction of the vertical steel bar, and the two ends of the pulling steel bar are aligned with the two ends of the vertical steel bar, and the length direction of the auxiliary steel bar is parallel to the length direction of the transverse steel bar.

[0012] The first engaging groove structure includes a first internal angle groove and a second internal angle groove. The first internal angle groove is formed in the upper plate surface of the prefabricated plate, and the second internal angle groove is formed in the lower plate surface of the prefabricated plate. The first internal angle groove and the second internal angle groove are respectively located above and below the internal steel bar assembly.

[0013] The first internal angle groove and the second internal angle groove are arranged to extend in the width direction of the prefabricated plate.

[0014] The second engaging groove structure includes an annular groove formed circumferentially on the outer side of the precast panel and a plurality of side grooves formed at intervals at the edge of the precast panel. The plurality of side grooves are connected to the annular groove, and the plurality of side grooves are staggered with the vertical steel bars of the internal steel bar assembly.

[0015] The side grooves penetrate the prefabricated board along the thickness direction of the prefabricated board, and the groove depth of the side grooves is greater than the groove depth of the annular groove; the annular groove and the tie steel bar assembly are located in the same plane and are staggered with the first bite groove structure.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model is provided with an internal steel bar assembly and a tie steel bar assembly, one end of the tie steel bar assembly is overlapped on the internal steel bar assembly inside the prefabricated plate, and the other end of the tie steel bar assembly is inserted into the cast-in-place plate, thereby improving the connection strength and connection integrity between the prefabricated plate and the cast-in-place plate, forming a composite floor slab with better anti-seepage reinforcement effect.

[0018] 2. The utility model is provided with an internal steel bar assembly and a first bite groove structure. The transverse steel bars of the internal steel bar assembly extend out of the prefabricated panel and are inserted into the shear wall, which can improve the connection reliability and integrity between the prefabricated panel and the shear wall. The groove setting of the first internal angle groove and the second internal angle groove can increase the concrete connection bite performance between the prefabricated panel and the shear wall, thereby improving the anti-seepage reinforcement effect between the composite floor slab and the wall.

[0019] 3. The utility model is provided with an internal steel bar assembly and a second bite groove structure. The transverse steel bars of the internal steel bar assembly extend out of the precast plate and are inserted into the connection area between two adjacent precast plates. This can improve the connection reliability of the two adjacent precast plates and the integrity of the composite floor. The setting of the annular groove and the side groove can increase the concrete connection bite performance between the two adjacent precast plates, thereby improving the anti-seepage reinforcement effect of the composite floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the prefabricated slab in the anti-seepage reinforced composite floor structure of the utility model;

[0021] Figure 2 It is a construction schematic diagram of the utility model's anti-seepage reinforced composite floor structure and shear wall;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 It is a side view of a prefabricated slab in the anti-seepage reinforced composite floor structure of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the internal steel bar assembly and the tie steel bar assembly in the anti-seepage reinforced composite floor structure of the utility model;

[0025] Figure 6 It is a side view of the internal steel bar assembly and the tie steel bar assembly in the anti-seepage reinforced composite floor structure of the utility model.

[0026] In the figure, 1. precast slab; 2. transverse reinforcement; 3. vertical reinforcement; 4. tension reinforcement; 5. auxiliary reinforcement; 6. first internal angle groove; 7. second internal angle groove; 8. annular groove; 9. side groove; 10. shear wall; 11. cast-in-place slab. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Please see attached Figure 1 and attached Figure 2A waterproof reinforced composite floor structure includes a precast panel 1, an internal steel bar assembly, a tie steel bar assembly, a first bite groove structure, a second bite groove structure and a cast-in-place panel 11; the internal steel bar assembly is arranged inside the precast panel 1, and the two ends of the precast panel 1 are respectively inserted into the shear walls 10 on both sides, and the first bite groove structure is formed at both ends of the precast panel 1, so that the two ends of the precast panel 1 are respectively bite-connected with the shear walls 10 on both sides through the first bite groove structure; the cast-in-place panel 11 is cast on the top of the precast panel 1, one end of the tie steel bar assembly is pre-buried in the precast panel 1, and the other end of the tie steel bar assembly extends to the top of the precast panel 1 and is located in the cast-in-place panel 11; a second bite groove structure is formed at the side edge of the precast panel 1, and two adjacent precast panels 1 are bite-connected through the second bite groove structure.

[0029] The internal steel bar assembly can be used to ensure that the structural strength of the precast panel 1 meets the load-bearing requirements of the floor slab. The tie steel bar assembly is tied inside the precast panel 1 and the cast-in-place panel 11 to ensure that the precast panel 1 and the cast-in-place panel 11 can form an integral composite floor slab with high structural stability, thereby improving the bite performance of the precast panel 1 and the cast-in-place panel 11 and reducing leakage of the composite floor slab.

[0030] The two ends of the prefabricated panel 1 are inserted into the shear walls 10 on both sides, which can improve the connection strength between the prefabricated panel 1 and the shear wall 10. The first bite groove structure can improve the bite performance of the prefabricated panel 1 and the shear wall 10 when casting the shear wall 10, and reduce leakage at the connection node between the prefabricated panel 1 and the shear wall 10.

[0031] The second bite groove structure is used to improve the bite performance when pouring the connection area of ​​two adjacent prefabricated panels 1 and reduce leakage of the splicing nodes of the prefabricated panels 1.

[0032] Please see attached Figure 1 and attached Figure 3 To Attachment Figure 6 The internal steel bar assembly includes transverse steel bars 2 and vertical steel bars 3; the transverse steel bars 2 are arranged along the length direction of the precast panel 1, and a plurality of transverse steel bars 2 are arranged at intervals along the width direction of the precast panel 1; a plurality of vertical steel bars 3 are vertically overlapped with a plurality of transverse steel bars 2 to form a mesh steel bar structure, and the tie steel bar assembly is overlapped on the plurality of vertical steel bars 3.

[0033] The number and specifications of the transverse steel bars 2 and the vertical steel bars 3 can be adaptively adjusted according to the size and load-bearing requirements of the precast panel 1. The tie steel bar assembly is overlapped on the vertical steel bars 3 to ensure the reliability of the tie steel bar assembly embedded in the precast panel 1, thereby ensuring the integrity of the composite floor formed by the precast panel 1 and the cast-in-place panel 11.

[0034] Please see attached Figure 1 and attached Figure 2 The two ends of the plurality of transverse steel bars 2 extend to the outside of the prefabricated panel 1 and are inserted into the shear walls 10 on both sides.

[0035] Inserting the transverse reinforcement 2 into the shear wall 10 can improve the strength of the connection node between the prefabricated panel 1 and the shear wall 10, thereby ensuring the anti-seepage reinforcement effect of the connection node.

[0036] Please see attached Figure 1 and attached Figure 4 The two ends of the plurality of vertical steel bars 3 extend to the outside of the prefabricated panel 1 and are inserted into the connection area of ​​two adjacent prefabricated panels 1 .

[0037] Inserting the vertical steel bars 3 into the connection area of ​​two adjacent prefabricated panels 1 can improve the connection node strength of the two adjacent prefabricated panels 1, thereby ensuring the anti-seepage reinforcement effect of the connection node.

[0038] Please see attached Figure 1 and attached Figure 3 To Attachment Figure 6 The tie steel bar assembly includes a tension steel bar 4 and an auxiliary steel bar 5; a plurality of tension steel bars 4 are overlapped on a plurality of vertical steel bars 3 respectively, and a plurality of wave peak structures are formed on each tension steel bar 4, so that the upper parts of the plurality of wave peak structures extend to the top of the prefabricated plate 1 and are inserted into the cast-in-place plate 11; the plurality of wave peak structures on the plurality of tension steel bars 4 are aligned, so that the plurality of auxiliary steel bars 5 can be respectively and correspondingly penetrated into the plurality of wave peak structures of the plurality of tension steel bars 4 and overlapped and fixed with the top of the wave peak structures, and the plurality of auxiliary steel bars 5 are located in the cast-in-place plate 11.

[0039] Preferably, the number of the wave crest structure, the transverse steel bars 2 and the auxiliary steel bars 5 on the pulling steel bars 4 is consistent, and the number of the pulling steel bars 4 does not exceed the number of the vertical steel bars 3. When connecting the steel bars, the transverse steel bars 2 can be arranged at the lower part of the wave crest structure, and the auxiliary steel bars 5 can be arranged at the top of the wave crest structure, so as to ensure that the steel bars are firmly overlapped and do not interfere with each other.

[0040] Please see attached Figure 5 The length direction of the pulling steel bar 4 is parallel to the length direction of the vertical steel bar 3, and the two ends of the pulling steel bar 4 are aligned with the two ends of the vertical steel bar 3, and the length direction of the auxiliary steel bar 5 is parallel to the length direction of the transverse steel bar 2.

[0041] Both ends of the tension reinforcement 4 also extend out of the precast panel 1, thereby improving the structural strength of the connection area between two adjacent precast panels 1, and also improving the connection bite performance of the two adjacent precast panels 1. The tension reinforcement 4 and the vertical reinforcement 3 are used to ensure the structural strength of the precast panel 1 in the width direction, and the auxiliary reinforcement 5 and the transverse reinforcement 2 are used to ensure the structural strength of the precast panel 1 in the length direction.

[0042] Please see attached Figure 1 and attached Figure 3The first engaging groove structure includes a first internal angle groove 6 and a second internal angle groove 7. The first internal angle groove 6 is formed in the upper plate surface of the prefabricated panel 1, and the second internal angle groove 7 is formed in the lower plate surface of the prefabricated panel 1. The first internal angle groove 6 and the second internal angle groove 7 are respectively located above and below the internal steel bar assembly.

[0043] By setting the first internal angle groove 6 and the second internal angle groove 7, when pouring the concrete of the shear wall 10, the concrete can be embedded in the groove body, thereby increasing the connection contact area between the shear wall 10 and the precast plate 1, thereby improving the bite performance of the shear wall 10 and the precast plate 1, and improving the anti-seepage reinforcement effect of the connection between the shear wall and the composite floor slab.

[0044] Please see attached Figure 1 The first internal angle groove 6 and the second internal angle groove 7 are arranged throughout the width direction of the prefabricated board 1 to ensure uniform bite strength at various positions in the width direction of the prefabricated board 1.

[0045] Please see attached Figure 1 and attached Figure 3 The second engaging groove structure includes an annular groove 8 formed circumferentially on the outer side of the precast panel 1 and a plurality of side grooves 9 formed at intervals at the edge of the precast panel 1. The plurality of side grooves 9 are connected to the annular groove 8, and the plurality of side grooves 9 are staggered with the vertical steel bars 3 of the internal steel bar assembly.

[0046] By setting the side grooves 9 and the annular grooves 8, when pouring concrete in the connection area between two adjacent precast panels 1, the concrete can be embedded in the groove, thereby increasing the connection contact area between the two adjacent precast panels 1, thereby improving the bite performance of the two adjacent precast panels 1 and improving the anti-seepage reinforcement effect of the composite floor.

[0047] Please see attached Figure 1 and attached Figure 3 The side groove 9 penetrates the prefabricated board 1 along the thickness direction of the prefabricated board 1, and the groove depth of the side groove 9 is greater than the groove depth of the annular groove 8.

[0048] The annular groove 8 ensures reliable connection between two adjacent prefabricated panels 1 in the transverse and longitudinal directions. At the same time, the side groove 9 with a deeper groove is provided to further improve the connection strength between the two adjacent prefabricated panels 1, thereby further ensuring the anti-seepage reinforcement effect of the composite floor.

[0049] Please see attached Figure 3 The annular groove 8 and the tie steel bar assembly are located in the same plane and are staggered with the first bite groove structure.

[0050] Preferably, the annular groove 8 is located in the middle of the thickness direction of the prefabricated board 1 to ensure the structural stability of the entire connection area and the uniformity of the upper and lower forces. The annular groove 8 and the first bite groove structure, i.e., the first inner corner groove 6 and the second inner corner groove 7, are staggered to prevent the grooves from being concentrated and affecting the structural strength of the prefabricated board 1.

[0051] Preferably, the depths of the annular groove 8, the first internal angle groove 6 and the second internal angle groove 7 are all one-third of the thickness of the precast plate 1. The total thickness of the precast plate 1 and the cast-in-place plate 11 is 70 mm.

[0052] Please see attached Figure 1 To Attachment Figure 6 , the construction and installation method of the utility model is:

[0053] The transverse steel bars 2 are vertically overlapped on the vertical steel bars 3 to form a mesh steel bar structure. Preferably, 5 transverse steel bars 2 are arranged at equal intervals, and 15 vertical steel bars 3 are arranged at equal intervals. 15 tension steel bars 4 are welded to the 15 vertical steel bars 3 respectively, and the two ends of each tension steel bar 4 are aligned with the two ends of the corresponding vertical steel bars 3, and 5 peak structures are arranged correspondingly at the positions of the 5 transverse steel bars 2 on each tension steel bar 4. Five auxiliary steel bars 5 are respectively inserted into the 5 peak structures of the 15 tension steel bars 4, and the auxiliary steel bars 5 are welded and fixed to the top of the peak structure.

[0054] Concrete is poured, the top surface of the concrete is higher than the transverse reinforcement 2 and lower than the auxiliary reinforcement 5, and the bottom surface of the concrete is lower than the vertical reinforcement 3, and the precast panel 1 is prefabricated in the factory. Preferably, the thickness of the upper and lower protective layers of the concrete is consistent. When pouring the precast panel 1, a first internal angle groove 6 is formed at the top of both ends of the precast panel 1 through a corresponding template structure, a second internal angle groove 7 is formed at the bottom of both ends of the precast panel 1, a ring groove 8 is formed circumferentially at the side edge of the precast panel 1, and a plurality of side grooves 9 are formed at intervals at the edge of the precast panel 1.

[0055] When installing the precast panel 1 between the shear walls 10 on both sides, insert both ends of the precast panel 1 into the shear walls 10 on both sides, so that the first internal angle groove 6 and the second internal angle groove 7 are located in the shear wall 10, and connect the ends of the transverse reinforcement 2 extending out of the precast panel 1 with the reinforcement in the shear wall 10, and pour the concrete of the shear wall 10. The concrete entering the first internal angle groove 6 and the second internal angle groove 7 increases the contact area between the shear wall 10 and the precast panel 1, improves the connection strength and the bite stability, and at the same time, the connection strength is further improved by the tie between the transverse reinforcement 2 and the shear wall reinforcement, solving the problem of leakage and insufficient bite performance between the composite floor slab and the shear wall 10.

[0056] When the cast-in-place slab 11 is cast on the top of the precast slab 1, since the upper part of the peak structure of the tensioning steel bars 4 and the auxiliary steel bars 5 are located inside the cast-in-place slab 11, the bonding strength between the cast-in-place slab 11 and the precast slab 1 can be improved, thereby avoiding leakage and insufficient bite performance between the cast-in-place slab 11 and the precast slab 1.

[0057] When connecting two adjacent precast panels 1, a formwork is supported and concrete is poured in the connection area between the two adjacent precast panels 1, and the vertical steel bars 3 of the two adjacent precast panels 1 are inserted in the connection area, which can improve the connection strength of the two adjacent precast panels 1 through cast-in-place concrete. At the same time, when pouring concrete, it is embedded in the annular groove 8 and the side groove 9, which can improve the bite performance and sealing performance between the two adjacent precast panels 1.

[0058] Preferably, the concrete of the connection areas of the cast-in-place slab 11, the shear wall 10 and the adjacent precast slab 1 can be poured simultaneously, ensuring that the connection between the cast-in-place slab 11, the shear wall 10 and the precast slab 1 forms an integral structure with high strength, thereby improving the bite performance of the connection node and reducing the risk of leakage.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-seepage reinforced composite floor structure, characterized by: The invention comprises a precast plate (1), an internal steel bar assembly, a tie steel bar assembly, a first bite groove structure, a second bite groove structure and a cast-in-place plate (11); the internal steel bar assembly is arranged inside the precast plate (1), the two ends of the precast plate (1) are respectively inserted into the shear walls (10) on both sides, and the two ends of the precast plate (1) are formed with a first bite groove structure, so that the two ends of the precast plate (1) are respectively bite-connected with the shear walls (10) on both sides through the first bite groove structure; the cast-in-place plate (11) is cast on the top of the precast plate (1), one end of the tie steel bar assembly is pre-buried in the precast plate (1), and the other end of the tie steel bar assembly extends to the top of the precast plate (1) and is located in the cast-in-place plate (11); the second bite groove structure is formed at the side edge of the precast plate (1), and two adjacent precast plates (1) are bite-connected through the second bite groove structure.

2. The anti-seepage reinforced composite floor structure according to claim 1 is characterized in that: The internal steel bar assembly comprises transverse steel bars (2) and vertical steel bars (3); the transverse steel bars (2) are arranged along the length direction of the precast plate (1), and a plurality of transverse steel bars (2) are arranged at intervals along the width direction of the precast plate (1); a plurality of vertical steel bars (3) are vertically overlapped with a plurality of transverse steel bars (2) to form a mesh steel bar structure, and the tie steel bar assembly is overlapped on the plurality of vertical steel bars (3).

3. The anti-seepage reinforced composite floor structure according to claim 2 is characterized in that: Both ends of the plurality of transverse steel bars (2) extend to the outside of the prefabricated panel (1) and are inserted into the shear walls (10) on both sides.

4. The anti-seepage reinforced composite floor structure according to claim 2 is characterized in that: Both ends of the plurality of vertical steel bars (3) extend to the outside of the prefabricated slab (1) respectively, and are inserted into the connection area of ​​two adjacent prefabricated slabs (1).

5. The anti-seepage reinforced composite floor structure according to claim 2 is characterized in that: The tie steel bar assembly comprises a tension steel bar (4) and an auxiliary steel bar (5); a plurality of tension steel bars (4) are overlapped on a plurality of vertical steel bars (3) respectively, and a plurality of wave peak structures are formed on each tension steel bar (4), so that the upper parts of the plurality of wave peak structures extend above the prefabricated plate (1) and are inserted into the cast-in-place plate (11); the plurality of wave peak structures on the plurality of tension steel bars (4) are arranged in an aligned manner, so that the plurality of auxiliary steel bars (5) can be respectively and correspondingly inserted into the plurality of wave peak structures of the plurality of tension steel bars (4) and overlapped and fixed with the top of the wave peak structures, and the plurality of auxiliary steel bars (5) are located in the cast-in-place plate (11).

6. The anti-seepage reinforced composite floor structure according to claim 5 is characterized in that: The length direction of the tension steel bar (4) is parallel to the length direction of the vertical steel bar (3), and the two ends of the tension steel bar (4) are aligned with the two ends of the vertical steel bar (3), and the length direction of the auxiliary steel bar (5) is parallel to the length direction of the transverse steel bar (2).

7. The anti-seepage reinforced composite floor structure according to claim 1 is characterized in that: The first engaging groove structure comprises a first internal angle groove (6) and a second internal angle groove (7), wherein the first internal angle groove (6) is formed in the upper plate surface of the precast plate (1), and the second internal angle groove (7) is formed in the lower plate surface of the precast plate (1), and the first internal angle groove (6) and the second internal angle groove (7) are respectively located above and below the internal steel bar assembly.

8. The anti-seepage reinforced composite floor structure according to claim 7 is characterized in that: The first internal angle groove (6) and the second internal angle groove (7) are arranged to extend in the width direction of the prefabricated plate (1).

9. The anti-seepage reinforced composite floor structure according to claim 1 is characterized in that: The second engaging groove structure comprises an annular groove (8) formed circumferentially on the outer side surface of the precast plate (1) and a plurality of side grooves (9) formed at intervals at the edge of the precast plate (1); the plurality of side grooves (9) are connected to the annular groove (8); and the plurality of side grooves (9) are staggered with the vertical steel bars (3) of the internal steel bar assembly.

10. The anti-seepage reinforced composite floor structure according to claim 9, characterized in that: The side groove (9) penetrates the prefabricated plate (1) along the thickness direction of the prefabricated plate (1), and the groove depth of the side groove (9) is greater than the groove depth of the annular groove (8); the annular groove (8) and the tie steel bar assembly are located in the same plane and are staggered with the first bite groove structure.

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