Novel porous precast slab reinforcing assembly

Abstract

The utility model discloses a novel porous precast slab reinforcing assembly which comprises a plurality of first reinforcing strips, second reinforcing strips and third reinforcing strips (41), the first reinforcing strips are distributed in parallel to the stress direction of precast slabs (63) and located at the splicing seams of the precast slabs (63), and the third reinforcing strips (41) are distributed in parallel to the stress direction of the precast slabs (63). The second reinforcing strips are distributed in the direction perpendicular to the stress direction of the prefabricated plate (63), the second reinforcing strips and the first reinforcing strips are arranged at intervals, and the third reinforcing strips (41) wrap the side edge of the non-stress side of the prefabricated plate (63). The floor has the advantages of being good in floor integrality and capable of preventing floor leakage.

Description

Technical Field

[0001] The utility model relates to a prefabricated plate reinforcement part, in particular to a novel porous prefabricated plate reinforcement component. Background Art

[0002] Porous prefabricated panels are a commonly used material in the construction industry. They are building components made in advance in factories. They are unidirectional load-bearing panels and are widely used in the construction field. However, due to their unidirectional shelving force and the lack of horizontal tension between prefabricated panels, they can easily lead to poor integrity of the floor slabs, cracking and leakage at the joints between panels, and other shortcomings.

[0003] There are many reinforcement technologies for porous prefabricated panels, most of which are single-panel reinforcement. However, the single-panel reinforcement structure has poor integrity of the floor slab, the prefabricated panels do not have bending resistance in non-stress directions, and cracks and leakage still occur at the joints between prefabricated panels. Utility Model Content

[0004] The purpose of the utility model is to provide a novel porous prefabricated board reinforcement component. The utility model has the characteristics of good floor integrity and preventing floor leakage.

[0005] The technical solution of the utility model: a new porous prefabricated plate reinforcement component, including a plurality of first reinforcement strips, second reinforcement strips and third reinforcement strips, the first reinforcement strips are distributed parallel to the force direction of the prefabricated plate and are located at the joints of the prefabricated plate, the second reinforcement strips are distributed perpendicular to the force direction of the prefabricated plate and are arranged at intervals with the first reinforcement strips, and the third reinforcement strips are wrapped around the side edges of the non-stress-bearing edges of the prefabricated plate.

[0006] In the aforementioned new porous prefabricated board reinforcement assembly, the first reinforcement strip includes a first surface reinforcement strip located on the upper surface of the prefabricated board and a first bottom reinforcement strip located on the lower surface of the prefabricated board; the second reinforcement strip includes a second surface reinforcement strip located on the upper surface of the prefabricated board and a second bottom reinforcement strip located on the lower surface of the prefabricated board.

[0007] In the aforementioned new porous prefabricated plate reinforcement assembly, a plurality of first oblong holes are distributed on the first surface reinforcement strip along the length direction of the first surface reinforcement strip, and a plurality of second oblong holes are distributed on the first bottom reinforcement strip along the length direction of the first bottom reinforcement strip. The first oblong holes and the second oblong holes correspond to the joints of the prefabricated plates up and down, and long bolts are passed between the first oblong holes, the joints and the second oblong holes.

[0008] In the aforementioned novel porous prefabricated plate reinforcement assembly, the lower end of the long bolt passes through the second oblong hole and extends downward by 150 to 200 mm.

[0009] In the aforementioned novel porous prefabricated plate reinforcement assembly, the first oblong hole and the second oblong hole are both covered with gaskets, and the long bolts pass through the gaskets.

[0010] In the aforementioned novel porous prefabricated plate reinforcement component, a plurality of overflow holes are distributed on the first surface reinforcement strip along the length direction of the first surface reinforcement strip, and the first oblong holes and the overflow holes are distributed at intervals.

[0011] In the aforementioned novel porous prefabricated plate reinforcement assembly, the third reinforcement strip is inserted into the connection seam between the non-stress bearing support and the prefabricated plate.

[0012] In the aforementioned novel porous prefabricated board reinforcement assembly, the third reinforcement strips are spaced apart along the length direction of the connection seam, and fourth reinforcement strips are provided on the surface of the prefabricated board between adjacent third reinforcement strips, and the fourth reinforcement strips are distributed perpendicularly to the second reinforcement strips.

[0013] In the aforementioned novel porous prefabricated plate reinforcement component, the reinforcement component also includes a surface angle steel and a bottom angle steel, and the surface angle steel and the bottom angle steel are respectively located at the upper connection angle and the lower connection angle between the load-bearing support and the prefabricated plate.

[0014] In the aforementioned novel porous prefabricated plate reinforcement assembly, a plurality of third oblong holes are provided on the flanges on one side of the face angle steel and the bottom angle steel along the length direction, and a through screw is provided in the third oblong hole to penetrate the load-bearing support and fix the angle steel or anchor plate on the side of the load-bearing support.

[0015] In the aforementioned novel porous prefabricated panel reinforcement assembly, a concrete layer covering the first reinforcement strip, the second reinforcement strip and the third reinforcement strip is also cast on the top surface of the prefabricated panel.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model arranges vertically distributed first reinforcement strips and second reinforcement strips on the prefabricated plate, effectively improves the bearing capacity and bidirectional bending performance of the floor slab in the stress direction, strengthens the integrity of the floor slab, enables the whole prefabricated plate in the non-stress direction to resist bending moment, and can be used as a four-side or three-side support plate to meet the overall stiffness requirements of the floor slab;

[0018] The first reinforcement strip is arranged at the joint of the precast panels and fixed through the joint by long bolts, which can be reinforced without damage. There is no need to completely chisel open the panel joint. Only holes can be drilled at the long screw hole positions, and long screws can be placed through the panel joints to fix them, thereby reducing the workload of chiseling out concrete from the panel joints. Grouting can be used to effectively close the panel joints to ensure the stability of the connection between adjacent precast panels, effectively solving the problem of floor leakage.

[0019] The fourth reinforcement strip is arranged at the side edge of the non-stress-bearing side, such as the connection seam between the non-stress-bearing support and the precast slab, so as to improve the integrity and strength of the connection between the precast slab and the non-stress-bearing support, reduce leakage, and do not need to drill holes in the precast slab to plant reinforcement bars or set anchor bolts, thus causing zero damage to the precast slab. In addition, there is no need to completely chisel open the connection seam of the non-stress-bearing side of the precast slab, and it is sufficient to process it at the position of the fourth reinforcement strip, thereby reducing the workload of chiseling out the concrete in the slab seam.

[0020] The long screw on the first reinforcement strip not only serves to reinforce the board seams without causing damage, but also passes through the prefabricated board and extends downward for a certain length, which can be used as the lower hanging rod of the integrated fireproof ceiling to connect and fix the ceiling. There is no need for plastering the bottom of the board, which has good aesthetics and can also serve as a fireproof partition.

[0021] The first reinforcement strip, the second reinforcement strip and the third reinforcement strip are all modular flat steels; the face angle steel and the bottom angle steel are all modular angle steels. The modular prefabricated reinforcement components are used, and a variety of modules can be selected according to the reinforcement calculation. The prefabrication in the factory avoids on-site profile opening, cutting, production and debugging, which can improve work efficiency and effectively shorten the construction period.

[0022] Concrete is poured on the top surface of the precast slab and the reinforcement strips on the floor surface are fire-protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the plane structure of the utility model.

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross section along the AA direction.

[0025] Figure 3 yes Figure 1 Schematic diagram of the cross section along the BB direction.

[0026] Figure 4 yes Figure 1 Schematic diagram of the cross section along the CC direction.

[0027] Figure 5 It is a schematic diagram of the structure of the first side reinforcement strip.

[0028] Figure 6 It is a structural schematic diagram of the first bottom reinforcement strip.

[0029] Figure 7 It is a structural diagram of the surface angle steel.

[0030] Figure 8 It is a structural diagram of the bottom angle steel.

[0031] Fig. 9 It is a schematic diagram of the installation structure of long bolts.

[0032] The markings in the attached drawings are: 1. first surface reinforcement strip; 11. first oblong hole; 12. overflow hole; 2. first bottom reinforcement strip; 21. second oblong hole; 22. long bolt; 23. nut; 24. gasket; 31. second surface reinforcement strip; 32. second bottom reinforcement strip; 41. third reinforcement strip; 42. fourth reinforcement strip; 51. surface angle steel; 52. bottom angle steel; 53. third oblong hole; 54. through screw; 55. stiffening rib; 61. non-load-bearing support; 62. load-bearing support; 63. precast panel; 64. joint; 65. concrete layer. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example:

[0036] like Figure 1-Figure 9 As shown, a novel porous prefabricated panel reinforcement assembly includes a plurality of first reinforcement strips, a second reinforcement strip and a third reinforcement strip 41, wherein the first reinforcement strip is distributed parallel to the stress direction of the prefabricated panel 63 and is located at the joint of the prefabricated panel 63, the second reinforcement strip is distributed perpendicular to the stress direction of the prefabricated panel 63 and is arranged at intervals from the first reinforcement strip, and the third reinforcement strip 41 is wrapped around the side edge of the non-stress side of the prefabricated panel 63. The provision of a plurality of staggered and vertically distributed first reinforcement strips and second reinforcement strips significantly enhances the integrity of the prefabricated panel 63 and improves the bending bearing capacity of the prefabricated panel 63 in the non-stress direction.

[0037] The first reinforcement strip, the second reinforcement strip and the third reinforcement strip 41 are welded to each other.

[0038] The first reinforcement strip includes a first surface reinforcement strip 1 located on the upper surface of the prefabricated panel 63 and a first bottom reinforcement strip 2 located on the lower surface of the prefabricated panel 63; the first surface reinforcement strip 1 and the first bottom reinforcement strip 2 correspond to each other up and down; the second reinforcement strip includes a second surface reinforcement strip 31 located on the upper surface of the prefabricated panel 63 and a second bottom reinforcement strip 32 located on the lower surface of the prefabricated panel 63, and the second surface reinforcement strip 31 and the second bottom reinforcement strip 32 correspond to each other up and down.

[0039] The first surface reinforcement strip 1 is provided with a plurality of first oblong holes 11 along the length direction of the first surface reinforcement strip 1, and the first bottom reinforcement strip 2 is provided with a plurality of second oblong holes 21 along the length direction of the first bottom reinforcement strip 2. The first oblong holes 11 and the second oblong holes 21 correspond to the joint seam 64 of the prefabricated plate 63 from top to bottom, and long bolts 22 are passed through the first oblong holes 11, the joint seam 64, and the second oblong holes 21, and fixed by nuts 23. The first surface reinforcement strip 1 and the first bottom reinforcement strip 2 are covered at the joint seam 64 of the prefabricated plate 63, and the long bolts 22 are passed through the first surface reinforcement strip 1, the first bottom reinforcement strip 2, and the joint seam 64 of the prefabricated plate 63 for fixing, so as to achieve non-destructive reinforcement of the plate seam without causing damage to the prefabricated plate 63; and there is no need to completely chisel the joint seam 64, and holes can be drilled only at the position of the long bolts 22, and the long bolts 22 can be placed through the joint seam 64 for fixing, thereby reducing the workload of chiseling concrete of the plate seam.

[0040] The lower end of the long bolt 22 passes through the second oblong hole 21 and extends downward 150-200 mm. The lower end of the long bolt 22 can be used as a connecting piece for the ceiling to set the ceiling, which not only meets the fireproof performance of the reinforcement component, but also is practical and beautiful, and saves the trouble of plastering and falling off the bottom of the reinforcement component.

[0041] The first oblong hole 11 and the second oblong hole 21 are both covered with gaskets 24, and the long bolts 22 pass through the gaskets 24 and are fixed by nuts 23. The gaskets 24 are provided to cover the first oblong hole 11 and the second oblong hole 21, thereby preventing the grouting material from leaking from the first oblong hole 11 and the second oblong hole 21.

[0042] The first surface reinforcement strip 1 is also provided with a plurality of overflow holes 12 along the length direction of the first surface reinforcement strip 1, and the first oblong holes 11 and the overflow holes 12 are arranged at intervals. The distance between the center of the adjacent first oblong holes 11 and the center of the overflow hole 12 is 125-150 mm.

[0043] The third reinforcement strip 41 is inserted into the connection seam between the non-load-bearing support 61 and the prefabricated plate 63. The third reinforcement strip 41 is L-shaped, straight-shaped or U-shaped. The upper end and the lower end of the third reinforcement strip 41 are welded to the second surface reinforcement strip 31 and the second bottom reinforcement strip 32 respectively.

[0044] The third reinforcement strips 41 are spaced along the length direction of the connection seam and correspond to the position of the second reinforcement strips, and have the same width. The surface of the prefabricated board 63 is provided with fourth reinforcement strips 42 between adjacent third reinforcement strips 41. The fourth reinforcement strips 42 are perpendicular to the second reinforcement strips and the third reinforcement strips 41 and are spaced along the non-stressed edge. The overall rigidity of the floor slab is improved.

[0045] The reinforcement assembly further includes a surface angle steel 51 and a bottom angle steel 52 , and the surface angle steel 51 and the bottom angle steel 52 are respectively located at the upper connection angle and the lower connection angle between the load bearing support 62 and the prefabricated plate 63 .

[0046] A plurality of third oblong holes 53 are provided on the flanges on one side of the face angle steel 51 and the bottom angle steel 52 along the length direction, and a through screw 54 is provided in the third oblong hole 53 which penetrates the load-bearing support 62 and is fixedly connected to the angle steel or anchor plate on the load-bearing support side.

[0047] A plurality of stiffening ribs 55 are further provided between the two wings of the bottom angle steel 52 .

[0048] The first reinforcement strip, the second reinforcement strip and the third reinforcement strip 41 are all modular flat steels; they can be directly prefabricated in the factory without the need to cut the steel plates on site, thus saving construction time and difficulty; the surface angle steel 51 and the bottom angle steel 52 are all modular angle steels.

[0049] A concrete layer 65 covering the first reinforcement strip, the second reinforcement strip and the third reinforcement strip 41 is also poured on the top surface of the precast panel 63 to provide fire protection for the reinforcement strips on the floor surface.

[0050] The construction process of the novel porous prefabricated plate reinforcement assembly includes the following steps:

[0051] S1. Construction of plate joint position:

[0052] a. Remove the decoration surface layer and leveling layer on the surface of the precast panel 63, determine the position of the joint 64 of the precast panel 63, and chisel out the poured concrete at the position of the joint 64;

[0053] b. Lay the first surface reinforcement strip 1 covering the joint 64 on the upper surface of the precast plate 63, and lay the first bottom reinforcement strip 2 covering the joint 64 on the lower surface of the precast plate 63. Both the first surface reinforcement strip 1 and the first bottom reinforcement strip 2 are distributed parallel to the force direction of the precast plate 63, and make the first oblong hole 11 and the second oblong hole 21 correspond to the joint 64 up and down. Cover the first oblong hole 11 and the second oblong hole 21 with a gasket 24 to prevent leakage. Then, pass the long bolt 22 through the first oblong hole 11, the joint 64 and the second oblong hole 21, and extend downward 150 to 200 mm, and then fix it with the upper nut and the lower nut 23;

[0054] The extended long bolt 22 can be used as an integrated fireproof ceiling lower hanging rod to connect and fix the ceiling, replacing the bottom plastering of the board, making the fireproof ceiling beautiful, and can cover the reinforcement components to prevent the paint layer at the reinforcement component position from falling off; it can also be used as a fireproof partition to enable the reinforcement components to meet the fire resistance time limit requirements.

[0055] c. Inject grouting material into the grouting holes of the first reinforcement strip 1. The strength grade of the grouting material is greater than C25 to ensure that the grouting at the joint 64 is full and overflowing; achieve damage-free fixation of the prefabricated panels, and the prefabricated panels have good splicing effect and strong integrity.

[0056] S2, Construction of load bearing support 62 position:

[0057] A face angle steel 51 is provided at the upper connection angle between the load bearing support 62 and the prefabricated plate 63, and a bottom angle steel 52 is provided at the lower connection angle between the load bearing support 62 and the prefabricated plate 63. A through screw 54 is provided in the third oblong hole 53 of the face angle steel 51 and the bottom angle steel 52, and the through screw 54 penetrates the load bearing support 62 and is fixedly connected to the angle steel or anchor plate on the side of the load bearing support 62;

[0058] S3, construction of non-load bearing support 61 position:

[0059] Remove the concrete at the joint between the prefabricated plate 63 and the non-stress bearing 61, and insert a plurality of third reinforcement strips 41 at regular intervals along the length direction of the joint and penetrate the joint;

[0060] A fourth reinforcement strip 42 is disposed on the surface of the prefabricated plate 63 between adjacent third reinforcement strips 41 .

[0061] S4. Construction of connection between bottom of panel and slab:

[0062] a. Cover the second surface reinforcement strip 31 and the second bottom reinforcement strip 32 on the upper surface and the lower surface of the prefabricated board 63 respectively, and the second surface reinforcement strip 31 and the second bottom reinforcement strip 32 are perpendicular to the force direction of the prefabricated board and are spaced apart from the first reinforcement strip;

[0063] b. Weld the second surface reinforcement strip 31 and the second bottom reinforcement strip 32 to the first surface reinforcement strip 1, the first bottom reinforcement strip 2, the third reinforcement strip 41, the fourth reinforcement strip 42, the surface angle steel 51, and the bottom angle steel 52 respectively to form a whole.

[0064] S5, pouring concrete layer: pouring a 15-20 mm thick plain concrete surface layer as the concrete layer 65, the plain concrete strength grade is greater than C25. The concrete layer 65 is laid on the surface of the precast panel 63 as a fireproof and steel plate protection.

[0065] The construction process is simple and convenient, with strong practicality, and is suitable for the reinforcement of various prefabricated floor slabs. The prefabricated slab 63 is reinforced without damage, and no bolts are set on the prefabricated slab 63 to fix it. This avoids the situation in which bolt anchoring is set on the prefabricated slab 63 during the reinforcement of the steel plate with carbon fiber by increasing the cross-section method, thereby damaging the prefabricated slab 63.

[0066] The parts not described in detail in the present invention are prior art and thus will not be described in detail here.

Claims

1. A novel porous prefabricated plate reinforcement component, characterized in that: It comprises a plurality of first reinforcing strips, a second reinforcing strip and a third reinforcing strip (41), wherein the first reinforcing strips are distributed parallel to the stress direction of the prefabricated panel (63) and are located at the joints of the prefabricated panel (63), the second reinforcing strips are distributed perpendicular to the stress direction of the prefabricated panel (63) and are arranged at intervals from the first reinforcing strips, and the third reinforcing strips (41) are wrapped around the side edge of the non-stress-bearing edge of the prefabricated panel (63).

2. A novel porous prefabricated plate reinforcement assembly according to claim 1, characterized in that: The first reinforcement strip comprises a first surface reinforcement strip (1) located on the upper surface of the prefabricated plate (63) and a first bottom reinforcement strip (2) located on the lower surface of the prefabricated plate (63); the second reinforcement strip comprises a second surface reinforcement strip (31) located on the upper surface of the prefabricated plate (63) and a second bottom reinforcement strip (32) located on the lower surface of the prefabricated plate (63).

3. A novel porous prefabricated plate reinforcement assembly according to claim 2, characterized in that: The first surface reinforcement strip (1) is provided with a plurality of first oblong holes (11) distributed along the length direction of the first surface reinforcement strip (1), and the first bottom reinforcement strip (2) is provided with a plurality of second oblong holes (21) distributed along the length direction of the first bottom reinforcement strip (2), the first oblong holes (11), the second oblong holes (21) and the joint seams (64) of the prefabricated plate (63) corresponding to each other vertically, and long bolts (22) are provided between the first oblong holes (11), the joint seams (64) and the second oblong holes (21).

4. A novel porous prefabricated plate reinforcement assembly according to claim 3, characterized in that: The lower end of the long bolt (22) passes through the second oblong hole (21) and extends downward by 150 to 200 mm.

5. The novel porous prefabricated plate reinforcement assembly according to claim 3 is characterized in that: A plurality of overflow holes (12) are also distributed on the first surface reinforcement strip (1) along the length direction of the first surface reinforcement strip (1), and the first oblong holes (11) and the overflow holes (12) are distributed at intervals.

6. The novel porous prefabricated plate reinforcement assembly according to claim 1 is characterized in that: The third reinforcement strip (41) is inserted into the connection seam between the non-load bearing support (61) and the prefabricated plate (63).

7. A novel porous prefabricated plate reinforcement assembly according to claim 6, characterized in that: The third reinforcement strips (41) are spaced apart along the length direction of the connection seam, and a fourth reinforcement strip (42) is provided on the surface of the prefabricated plate (63) between adjacent third reinforcement strips (41), and the fourth reinforcement strip (42) is perpendicular to the second reinforcement strips.

8. The novel porous prefabricated plate reinforcement assembly according to claim 1 is characterized in that: The reinforcement assembly further comprises a face angle steel (51) and a bottom angle steel (52), wherein the face angle steel (51) and the bottom angle steel (52) are respectively located at the upper connection angle and the lower connection angle between the load bearing support (62) and the prefabricated plate (63).

9. A novel porous prefabricated plate reinforcement assembly according to claim 8, characterized in that: A plurality of third oblong holes (53) are provided on the flanges of one side of the face angle steel (51) and the bottom angle steel (52) along the length direction, and a through screw (54) is provided in the third oblong hole (53) to penetrate the load-bearing support (62) and to be fixedly connected to the angle steel or anchor plate on the side of the load-bearing support (62).

10. The novel porous prefabricated plate reinforcement assembly according to claim 1 is characterized in that: The top surface of the prefabricated panel (63) is also cast with a concrete layer (65) covering the first reinforcement strip, the second reinforcement strip and the third reinforcement strip (41).

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