Prestressed high-strength fiber concrete prefabricated laminated slab

Abstract

The invention discloses a prestressed high-strength fiber concrete prefabricated laminated slab, and particularly relates to the technical field of prefabricated laminated slabs, the prestressed high-strength fiber concrete prefabricated laminated slab comprises a prefabricated concrete bottom slab and laminated layer concrete located at the top of the prefabricated concrete bottom slab, and connecting grooves are formed in the periphery of the prefabricated concrete bottom slab; a first longitudinal stress steel bar and a first transverse stress steel bar which are perpendicular to each other are arranged in the middle of the prefabricated concrete bottom plate. Firstly, the supporting vertical rods and the connecting inclined rods are welded to the tops of the first transverse stress steel bars, compared with the prior art, the structure is simpler, machining and manufacturing are convenient, the welding and assembling efficiency is improved, meanwhile, the high-strength steel bars are located in the middles of the bent hooks, and the two high-strength steel bars are tightened through the fastening steel wire binding belts, so that the welding and assembling efficiency is improved. The two prefabricated concrete bottom plates can be driven to extrude towards the middle gap through tightening force on the high-strength steel bars, the spliced gap is reduced, the situation that poured superimposed layer concrete falls off, waste is generated is avoided, and the using effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated composite panels, and more particularly to a prefabricated composite panel made of prestressed high-strength fiber concrete. Background Art

[0002] In modern architecture, precast composite slabs, as an important building component, are widely used in various building structures. Composite slabs are a better structural form that combines precast and cast-in-place concrete. The precast concrete bottom slab is combined with the upper cast-in-place concrete layer to form a whole and work together. The prestressed thin plate is used as the bottom formwork of the cast-in-place concrete layer. No additional formwork support is required to cast the top concrete layer and combine it into a whole for support.

[0003] When pouring the top overlapping layer of concrete on the existing precast concrete composite slab, it is necessary to place and fix multiple precast concrete bottom plates, and then manually move the precast concrete bottom plates to make the two precast concrete bottom plates fit together, which easily leads to gaps, resulting in some concrete dripping when pouring the overlapping layer of concrete, causing waste, and it is inconvenient to narrow the gap between two adjacent precast concrete bottom plates when assembling multiple precast concrete bottom plates; and the "V"-shaped steel bar frame on the top of the existing prestressed steel bar is mostly connected by multiple "V"-shaped rods and supporting cross bars, with a complex structure. During the early welding and production, it will affect the work efficiency, thereby affecting the processing and production efficiency. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a prefabricated prestressed high-strength fiber concrete composite slab to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a prestressed high-strength fiber concrete prefabricated composite slab, comprising a precast concrete bottom plate and a composite layer of concrete located on the top of the precast concrete bottom plate, the precast concrete bottom plate is provided with connecting grooves around it, the middle of the precast concrete bottom plate is provided with mutually perpendicular first longitudinal stress steel bars and first transverse stress steel bars, the top of the first transverse stress steel bar is fixedly connected with an inclined connecting diagonal rod and a vertically arranged supporting vertical rod;

[0006] The inclination angles of the supporting uprights at the tops of two adjacent first transverse stress reinforcements are symmetrical, both ends of the first longitudinal stress reinforcement and the first transverse stress reinforcement are fixedly connected with bending hooks, the middle part of the composite layer concrete is provided with a second longitudinal stress reinforcement and a second transverse stress reinforcement, and an auxiliary casting support mechanism is provided at part of the connection between the first longitudinal stress reinforcement and the first transverse stress reinforcement.

[0007] In a preferred embodiment, the bending hook is arranged in the middle of the connecting groove, and the bending hook is made by bending both ends of the first longitudinal stress steel bar or the first transverse stress steel bar. The cross-sectional shape of the bending hook is set to "L" shape, and the top end of the bending hook is lower than the top wall of the precast concrete base plate.

[0008] In a preferred embodiment, the first transverse stress reinforcement is arranged on the top of the first longitudinal stress reinforcement, the top end of the support vertical rod is fixedly connected to the middle part of the connecting diagonal rod, and the precast concrete base plate is made of a mixture of high-strength concrete and metal fiber.

[0009] In a preferred embodiment, the angle between the connecting diagonal rod and the first transverse stress reinforcement is set to degrees, the top end of the connecting diagonal rod extends to the middle of the composite layer concrete, and a top plate is provided on the top of the composite layer concrete.

[0010] In a preferred embodiment, a high-strength steel bar is arranged in the middle of the connection groove, and the high-strength steel bar is arranged on one side of the bending hook close to the middle of the precast concrete bottom plate.

[0011] In a preferred embodiment, a fastening steel wire tie is sleeved at a position corresponding to the bending hook between two adjacent high-strength steel bars, and the fastening steel wire tie is in contact with the bending hook.

[0012] In a preferred embodiment, the second longitudinal stress reinforcement is arranged between two adjacent connecting oblique rods, the second longitudinal stress reinforcement is in contact with the wall of the connecting oblique rods, and the wall of the second transverse stress reinforcement is in contact with the wall of the connecting oblique rods.

[0013] In a preferred embodiment, the auxiliary pouring support mechanism includes a partial concrete support block arranged at the bottom of the first transverse stress steel bar and the first longitudinal stress steel bar, the concrete support block is arranged directly below the connection between the first longitudinal stress steel bar and the first transverse stress steel bar, and a threaded barrel is fixedly connected to one side of the top of the concrete support block, and a threaded rod is inserted in the middle of the threaded barrel.

[0014] In a preferred embodiment, a limiting groove is provided on the top of the concrete support block, and the cross-sectional shape of the limiting groove is set to a "+" shape. The connection points of the first longitudinal stress steel bar and the first transverse stress steel bar are both set in the middle of the limiting groove. A pressure plate is provided on the top of the concrete support block, and one end of the pressure plate is sleeved on the middle of the threaded barrel.

[0015] In a preferred embodiment, an extrusion nut is sleeved on the top end of the threaded rod, the top of the threaded rod passes through the middle of the composite layer concrete and the top plate, the extrusion nut is arranged on the top of the top plate, and the threaded rod and the first longitudinal stress steel bar, the first transverse stress steel bar, the second longitudinal stress steel bar, and the second transverse stress steel bar are staggered with each other.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention firstly welds the supporting vertical pole and the connecting diagonal pole to the top of the first transverse stress steel bar, which is simpler than the structure in the prior art, convenient for welding to the top of the first transverse stress steel bar, convenient for processing and manufacturing, and improves the welding assembly efficiency without affecting the overall strength. At the same time, the high-strength steel bar is located in the middle of the bending hook, and the two high-strength steel bars are tied tightly by tightening the steel wire tie. The tightening force of the high-strength steel bar can drive the two precast concrete bottom plates to squeeze toward the middle gap, narrow the splicing gap, avoid the concrete of the poured superimposed layer from falling off, and generate waste, thereby improving the use effect;

[0018] 2. The present invention also facilitates the generation of tension in the first transverse stress steel bar and the first longitudinal stress steel bar when casting and manufacturing the precast concrete bottom plate through the provided bending hook, thereby generating pre-compression stress in the concrete and improving the overall strength. Moreover, through the inclined arrangement of multiple connecting oblique rods, a second longitudinal stress steel bar can be arranged on one side of the top of the connecting oblique rod, and the height of the second longitudinal stress steel bar is supported and limited by the multiple connecting oblique rods, which is convenient for casting and using the composite layer concrete, and improves the stability of the second longitudinal stress steel bar. Moreover, through the multiple second longitudinal stress steel bars, the overall strength of the composite layer concrete is improved.

[0019] 3. The present invention also supports the prestressed mesh formed by welding the first longitudinal stress steel bar and the first transverse stress steel bar through the auxiliary pouring support mechanism set up, through the concrete support block and the pressure plate, so that the first longitudinal stress steel bar and the first transverse stress steel bar are located in the middle of the precast concrete bottom plate, thereby improving the strength of the precast concrete bottom plate, and conveniently installing high-strength steel bars for combined connection through the connection groove, and conveniently limiting the height of the top superimposed layer of concrete through the cooperation of the top plate, the extrusion nut and the threaded rod, thereby improving the overall strength, and making the multiple pouring positions always level, thereby improving the quality of the finished product;

[0020] In summary, through the mutual influence of the above-mentioned multiple effects, when laying the precast concrete base plate, the splicing gap can be reduced to avoid the pouring of the overlapping layer concrete and the waste. At the same time, it is convenient to process and manufacture the connecting parts, improve the welding assembly efficiency, and improve the overall strength of the overlapping layer concrete and limit the pouring height, so that multiple pouring positions are always level, thereby improving the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the connection structure of the precast concrete bottom plate and the second longitudinal stress steel bar and the second transverse stress steel bar of the present invention.

[0023] Figure 3 This is a schematic diagram from another angle of the connection structure between the second longitudinal stress reinforcement and the second transverse stress reinforcement and the precast concrete base plate of the present invention.

[0024] Figure 4 It is a schematic diagram of the connection structure of two prefabricated concrete bottom plates after splicing in the present invention.

[0025] Figure 5 It is a schematic diagram of the connection structure between the first transverse stress reinforcement and the first longitudinal stress reinforcement and the concrete support block of the present invention.

[0026] Figure 6 It is a schematic diagram of the disassembled structure of the concrete support block, threaded rod and top plate of the present invention.

[0027] The accompanying drawings are marked as follows: 1. precast concrete base plate; 2. connecting groove; 3. first longitudinal stress steel bar; 4. first transverse stress steel bar; 5. bending hook; 6. connecting diagonal rod; 7. supporting vertical rod; 8. concrete support block; 9. threaded tube; 10. limiting groove; 11. threaded rod; 12. extrusion nut; 13. high-strength steel bar; 14. fastening wire tie; 15. second longitudinal stress steel bar; 16. second transverse stress steel bar; 17. laminated layer concrete; 18. top plate; 19. pressure plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] As attached Figure 1-6The prestressed high-strength fiber concrete prefabricated composite slab shown in the figure comprises a precast concrete base plate 1 and a composite layer concrete 17 located on the top of the precast concrete base plate 1. The composite layer concrete 17 is cast on the top of the precast concrete base plate 1 after laying, so that the connection strength between the composite layer concrete 17 and the precast concrete base plate 1 can be improved, and the overall supporting strength can be improved. The precast concrete base plate 1 is provided with a connecting groove 2 around it, so that when the composite layer concrete 17 is cast, the composite layer concrete 17 is filled in the middle of the connecting groove 2, so as to improve the connection strength between the composite layer concrete 17 and the precast concrete base plate 1, and the gap between the two precast concrete base plates 1 is blocked, so as to improve the casting effect. A first longitudinal stress steel bar 3 and a first transverse stress steel bar 4 which are perpendicular to each other are arranged in the middle of the bottom plate 1. The cooperation of the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 improves the overall strength of the precast concrete bottom plate 1. The top of the first transverse stress steel bar 4 is fixedly connected with an inclined connecting diagonal rod 6 and a vertically arranged supporting vertical rod 7. The connecting strength of the connecting diagonal rod 6 and the first transverse stress steel bar 4 is improved by the supporting vertical rod 7. The connecting diagonal rod 6 is fixed so that the top of the connecting diagonal rod 6 is conveniently located in the middle of the superimposed layer concrete 17 to further improve the connecting strength of the superimposed layer concrete 17 and the precast concrete bottom plate 1, so that the superimposed layer concrete 17 and the precast concrete bottom plate 1 form a whole.

[0030] The inclination angles of the support uprights 7 at the tops of two adjacent first transverse stress reinforcement bars 4 are symmetrical, and the support and positioning of the second longitudinal stress reinforcement bars 15 can be achieved by different angles of the support uprights 7, which is convenient for pouring the composite layer concrete 17 and positioning the second longitudinal stress reinforcement bars 15 during pouring. The first longitudinal stress reinforcement bars 3 and the first transverse stress reinforcement bars 4 are fixedly connected at both ends with bending hooks 5, and the bending hooks 5 are convenient for tensioning the two ends of the first longitudinal stress reinforcement bars 3 and the first transverse stress reinforcement bars 4, so that pre-compression stress is generated in the concrete. The middle part of the composite layer concrete 17 is provided with the second longitudinal stress reinforcement bars 15 and the second transverse stress reinforcement bars 16, and the strength of the composite layer concrete 17 is improved by the second longitudinal stress reinforcement bars 15 and the second transverse stress reinforcement bars 16, so as to further improve the overall strength. The auxiliary pouring support mechanism is provided at part of the connection between the first longitudinal stress reinforcement bars 3 and the first transverse stress reinforcement bars 4, which is convenient for positioning and supporting the positions and heights of the first longitudinal stress reinforcement bars 3 and the first transverse stress reinforcement bars 4 when pouring the precast concrete bottom plate 1, so as to avoid the first longitudinal stress reinforcement bars 3 and the first transverse stress reinforcement bars 4 from moving during pouring and affecting the quality of the finished product.

[0031] As attached Figure 2-4As shown, the bending hook 5 is arranged in the middle of the connecting groove 2, and the bending hook 5 is made by bending the two ends of the first longitudinal stress steel bar 3 or the first transverse stress steel bar 4. The cross-sectional shape of the bending hook 5 is set to be "L" shape, and the top of the bending hook 5 is lower than the top wall of the precast concrete base plate 1, so as to improve the connection strength between the bending hook 5 and the first longitudinal stress steel bar 3 or the first transverse stress steel bar 4, facilitate the manufacture and use, and facilitate the combination and connection of two precast concrete base plates 1 through the bending hook 5, and improve the stress strength and the overall strength.

[0032] As attached Figure 4 , 5 As shown, the first transverse stress reinforcement 4 is arranged on the top of the first longitudinal stress reinforcement 3, the top end of the support vertical rod 7 is fixedly connected to the middle part of the connecting diagonal rod 6, and the precast concrete base plate 1 is made of a mixture of high-strength concrete and metal fiber, which improves the strength of the connecting diagonal rod 6 and the overall strength of the precast concrete base plate 1.

[0033] As attached Figure 1 , 5 As shown, the angle between the connecting diagonal rod 6 and the first transverse stress reinforcement bar 4 is set to 45 degrees, and the top end of the connecting diagonal rod 6 extends to the middle of the composite layer concrete 17. A top plate 18 is provided on the top of the composite layer concrete 17. By checking whether the top connecting diagonal rods 6 of the two first transverse stress reinforcement bars 4 correspond to each other and adjusting the offset angle, the placement height of the top second longitudinal stress reinforcement bar 15 can be changed to improve the use effect. The top plate 18 can be used to assist in positioning the top wall of the composite layer concrete 17 during pouring.

[0034] As attached Figure 2 , 4 As shown, a high-strength steel bar 13 is arranged in the middle of the connecting groove 2, and the high-strength steel bar 13 is arranged on one side of the bending hook 5 close to the middle of the precast concrete base plate 1. The high-strength steel bar 13 is positioned by the bending hook 5, and the high-strength steel bar 13 is used to improve the supporting strength of the connection between the two precast concrete base plates 1 of the finished floor.

[0035] As attached Figure 2 , 4 As shown, a fastening steel wire tie 14 is sleeved at a position corresponding to the bending hook 5 between two adjacent high-strength steel bars 13, and the fastening steel wire tie 14 is fitted with the bending hook 5. The fastening steel wire tie 14 improves the connection strength of the two high-strength steel bars 13, thereby improving the fitting strength between the two precast concrete base plates 1, and the high-strength steel bars 13 pull the bending hook 5, so that the prestressed strength of the first transverse stress steel bar 4 can be improved.

[0036] As attached Figure 2-5As shown, the second longitudinal stress steel bar 15 is arranged between two adjacent connecting oblique rods 6, the second longitudinal stress steel bar 15 is in contact with the wall of the connecting oblique rod 6, and the wall of the second transverse stress steel bar 16 is in contact with the wall of the connecting oblique rod 6. The second longitudinal stress steel bar 15 can be suspended on the top of the precast concrete base plate 1 by connecting the oblique rod 6, which is convenient for pouring the composite layer concrete 17. The stability of the second longitudinal stress steel bar 15 can be improved by connecting the oblique rod 6, and the second transverse stress steel bar 16 can be located directly above the first transverse stress steel bar 4, and the second longitudinal stress steel bar 15 can be located directly above the first longitudinal stress steel bar 3, thereby improving the overall strength of the composite layer concrete 17 and the precast concrete base plate 1.

[0037] As attached Figure 5 , 6 As shown, the auxiliary pouring support mechanism includes a partial concrete support block 8 arranged at the bottom of the first transverse stress steel bar 4 and the first longitudinal stress steel bar 3. The concrete support block 8 is arranged just below the connection between the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4. A threaded tube 9 is fixedly connected to one side of the top of the concrete support block 8. A threaded rod 11 is inserted in the middle of the threaded tube 9. The first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 are supported by the concrete support block 8. When the precast concrete base plate 1 is cast and formed, the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 are located in the middle of the precast concrete base plate 1, so as to improve the strength of the precast concrete base plate 1, and the threaded rod 11 is used to facilitate connection with the precast concrete base plate 1.

[0038] As attached Figure 6 As shown, a limiting groove 10 is provided on the top of the concrete support block 8, and the cross-sectional shape of the limiting groove 10 is set to a "+" shape. The connection between the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 is set in the middle of the limiting groove 10. A pressure plate 19 is provided on the top of the concrete support block 8, and one end of the pressure plate 19 is sleeved in the middle of the threaded tube 9. The placement of the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 is limited by the limiting groove 10, thereby improving the stability of the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4, thereby improving the casting effect, and the pressure plate 19 squeezes the top of the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 to improve the connection strength between the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 and the concrete support block 8.

[0039] As attached Figure 6As shown, the top end of the threaded rod 11 is sleeved with an extrusion nut 12, the top of the threaded rod 11 passes through the middle of the composite layer concrete 17 and the top plate 18, the extrusion nut 12 is arranged on the top of the top plate 18, the threaded rod 11 and the first longitudinal stress steel bar 3, the first transverse stress steel bar 4, the second longitudinal stress steel bar 15, and the second transverse stress steel bar 16 are mutually offset, the top plate 18 is used to assist in positioning the top wall of the poured composite layer concrete 17, and the top threaded connection ring of the threaded rod 11 is used to facilitate the hoisting and use of the precast concrete bottom plate 1, and the top plate 18 is squeezed by the extrusion nut 12 to increase the extrusion strength of the top plate 18 on the supporting upright 7, thereby improving the use effect.

[0040] Working principle of the present invention: When making and using, the concrete support block 8 is placed at a preset position, and the first longitudinal stress reinforcement 3 and the first transverse stress reinforcement 4 are vertically distributed, so that the partial intersection of the first longitudinal stress reinforcement 3 and the first transverse stress reinforcement 4 is located in the middle of the limit groove 10, as shown in the attached manual. Figure 5 As shown, the first longitudinal stress reinforcement 3 and the first transverse stress reinforcement 4 are limitedly supported by the concrete support block 8, and then a pressing plate 19 is sleeved in the middle of the threaded tube 9 to squeeze and position the top of the first longitudinal stress reinforcement 3 and the first transverse stress reinforcement 4;

[0041] Then, the first transverse stress steel bar 4 and the first longitudinal stress steel bar 3 are pulled by the bending hook 5 through the external pulling force to generate prestress, and the high-strength concrete mixed with metal fibers can be cast into the precast concrete bottom plate 1, and at the same time, the bending hooks 5 at both ends of the first longitudinal stress steel bar 3 and the first transverse stress steel bar 4 are located at the connecting grooves 2 around the finished precast concrete bottom plate 1, and at this time, the top end of the connecting diagonal rod 6 is located at the top of the precast concrete bottom plate 1;

[0042] When the precast concrete base plate 1 is assembled and poured into the superimposed layer concrete 17, a high-strength steel bar 13 is placed in the middle of the bending hook 5, and the two high-strength steel bars 13 are tied together by tightening the steel wire tie 14, so that the bending hooks 5 in the middle of the two precast concrete base plates 1 generate pressure to improve the combined strength;

[0043] Then, a second longitudinal stress steel bar 15 is placed on the top of multiple connecting diagonal rods 6, and the second longitudinal stress steel bar 15 is supported and limited by the connecting diagonal rods 6 to improve the stability of the second longitudinal stress steel bar 15. Then, a plurality of second transverse stress steel bars 16 are arranged on the top of the second longitudinal stress steel bar 15 on one side of the connecting diagonal rod 6, and the second transverse stress steel bars 16 and the second longitudinal stress steel bars 15 are bound and fixed by steel wires. Concrete can be poured to form an overlapping layer concrete 17, and the concrete is located in the middle of the connecting groove 2, and the top of the connecting diagonal rod 6 is located in the middle of the overlapping layer concrete 17, so as to improve the connection strength between the overlapping layer concrete 17 and the precast concrete base plate 1 to avoid stratification, and at the same time improve the overall prestress and support strength, thereby improving the use effect.

[0044] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the case of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0045] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prestressed high-strength fiber concrete prefabricated composite slab, comprising a prefabricated concrete base plate (1) and a composite layer of concrete (17) located on top of the prefabricated concrete base plate (1), characterized in that: The precast concrete bottom plate (1) is provided with connection grooves (2) around its periphery, the middle of the precast concrete bottom plate (1) is provided with first longitudinal stress reinforcement bars (3) and first transverse stress reinforcement bars (4) perpendicular to each other, and the top of the first transverse stress reinforcement bars (4) is fixedly connected with an inclined connection diagonal rod (6) and a vertical support vertical rod (7); The inclination angles of the support uprights (7) at the tops of two adjacent first transverse stress reinforcement bars (4) are symmetrical, both ends of the first longitudinal stress reinforcement bars (3) and the first transverse stress reinforcement bars (4) are fixedly connected with bending hooks (5), a second longitudinal stress reinforcement bar (15) and a second transverse stress reinforcement bar (16) are arranged in the middle of the composite layer concrete (17), and an auxiliary casting support mechanism is arranged at a part of the connection between the first longitudinal stress reinforcement bars (3) and the first transverse stress reinforcement bars (4).

2. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 1, characterized in that: The bending hook (5) is arranged in the middle of the connecting groove (2); the bending hook (5) is made by bending two ends of the first longitudinal stress steel bar (3) or the first transverse stress steel bar (4); the cross-sectional shape of the bending hook (5) is set to be "L"-shaped; the top end of the bending hook (5) is lower than the top wall of the precast concrete bottom plate (1).

3. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 1, characterized in that: The first transverse stress reinforcement (4) is arranged on the top of the first longitudinal stress reinforcement (3), the top end of the support vertical rod (7) is fixedly connected to the middle part of the connecting diagonal rod (6), and the precast concrete base plate (1) is made of a mixture of high-strength concrete and metal fibers.

4. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 1, characterized in that: The angle between the connecting diagonal rod (6) and the first transverse stress reinforcement bar (4) is set to 45 degrees, the top end of the connecting diagonal rod (6) extends to the middle of the laminated layer concrete (17), and a top plate (18) is provided on the top of the laminated layer concrete (17).

5. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 1, characterized in that: A high-strength steel bar (13) is arranged in the middle of the connection groove (2), and the high-strength steel bar (13) is arranged on one side of the bending hook (5) close to the middle of the precast concrete bottom plate (1).

6. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 5, characterized in that: A fastening steel wire tie (14) is sleeved at a position corresponding to the bending hook (5) between two adjacent high-strength steel bars (13), and the fastening steel wire tie (14) is in close contact with the bending hook (5).

7. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 1, characterized in that: The second longitudinal stress steel bar (15) is arranged between two adjacent connecting oblique rods (6), the second longitudinal stress steel bar (15) is in contact with the wall of the connecting oblique rod (6), and the wall of the second transverse stress steel bar (16) is in contact with the wall of the connecting oblique rod (6).

8. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 1, characterized in that: The auxiliary pouring support mechanism comprises a partial concrete support block (8) arranged at the bottom of the first transverse stress steel bar (4) and the first longitudinal stress steel bar (3); the concrete support block (8) is arranged directly below the connection between the first longitudinal stress steel bar (3) and the first transverse stress steel bar (4); a threaded cylinder (9) is fixedly connected to one side of the top of the concrete support block (8); a threaded rod (11) is inserted in the middle of the threaded cylinder (9).

9. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 8, characterized in that: A limiting groove (10) is provided on the top of the concrete support block (8), and the cross-sectional shape of the limiting groove (10) is set to be a "+" shape. The connection between the first longitudinal stress steel bar (3) and the first transverse stress steel bar (4) is arranged in the middle of the limiting groove (10). A pressing plate (19) is provided on the top of the concrete support block (8), and one end of the pressing plate (19) is sleeved in the middle of the threaded tube (9).

10. The prestressed high-strength fiber concrete prefabricated composite slab according to claim 8, characterized in that: The top end of the threaded rod (11) is sleeved with an extrusion nut (12); the top of the threaded rod (11) penetrates the middle of the laminated layer concrete (17) and the top plate (18); the extrusion nut (12) is arranged on the top of the top plate (18); the threaded rod (11) and the first longitudinal stress steel bar (3), the first transverse stress steel bar (4), the second longitudinal stress steel bar (15), and the second transverse stress steel bar (16) are mutually displaced.

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