Prestressed ribbed beam and slab combined structure

Abstract

The utility model discloses a prestressed ribbed beam plate combined structure which comprises a flat plate, a plurality of first steel pipes fixedly penetrate through the top face of the flat plate, second steel pipes matched with the first steel pipes perpendicularly penetrate through the bottom face of the flat plate, the first steel pipes are communicated with the second steel pipes, and first step faces are concentrically arranged at the top ends of the first steel pipes. A second step face matched with the first step face is concentrically arranged at the tail end of the second steel pipe, a first arc-shaped buckle plate and a second arc-shaped buckle plate are jointly arranged between the first step face and the second step face, and the first arc-shaped buckle plate and the second arc-shaped buckle plate are fixedly connected through bolts. The first steel pipes are arranged on the flat plates, the second steel pipes are arranged on the bottom surfaces of the flat plates, and the first steel pipes are fixed through the two arc-shaped buckle plates and the bolts, so that the two overlapped flat plates are fixed, and the two flat plates are prevented from deviating when concrete is poured into the steel pipes; and the strength of the whole structure of the building is improved.

Description

A prestressed ribbed beam-slab composite structure Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a prestressed ribbed beam-slab composite structure. Background Technology

[0002] Patent publication number CN220133089U discloses a prestressed ribbed beam-slab composite structural system, including steel-concrete composite columns, U-shaped composite steel main beams, steel secondary frame beams, and double-beam composite floor slabs. The steel-concrete composite columns consist of outer steel pipes and inner concrete. The U-shaped steel main beams include double webs, upper flanges, bottom plates, and concrete. The U-shaped steel main beams are welded to the steel-concrete composite columns. The double-beam composite floor slabs include double-beam precast slabs and post-cast reinforced concrete. The two ends of the double-beam precast slabs are fixedly connected to the U-shaped steel main beams. The steel secondary frame beams are welded to the steel-concrete composite columns and arranged parallel to the span direction of the double-beam precast slabs. The double-beam precast slabs, the U-shaped steel main beams, and the steel secondary beams are integrated by the post-cast reinforced concrete and the concrete within the U-shaped steel main beams. The double-beam slab structure is used in the large span direction, and the secondary frame beams are variable cross-section beams. The beam height in the large span direction is small, which is conducive to reducing the story height. In addition, the main body of the double-beam slab composite structure system is steel structure, which allows for large deformation and can reduce the column cross-section.

[0003] When constructing a multi-story building, it is necessary to stack the overall structure of the above-mentioned patent. However, the steel pipe concrete column in the patent lacks a connecting component at the end face. When stacking the multi-story structure and pouring concrete, the structure on the upper and lower sides is prone to horizontal displacement, which affects the overall strength of the entire multi-story building. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a prestressed ribbed beam-plate composite structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prestressed ribbed beam-plate composite structure, comprising a flat plate, wherein a plurality of first steel pipes are fixedly inserted through the top surface of the flat plate, and a second steel pipe adapted to the first steel pipes is perpendicularly inserted through the bottom surface of the flat plate. The first steel pipes and the second steel pipes are interconnected. The top end of the first steel pipes is provided with a first stepped surface concentrically, and the end end of the second steel pipes is provided with a second stepped surface adapted to the first stepped surface concentrically. A first arc-shaped buckle plate and a second arc-shaped buckle plate are provided together between the first stepped surface and the second stepped surface. The first arc-shaped buckle plate and the second arc-shaped buckle plate are fixedly connected to each other by bolts.

[0006] As a further description of the above technical solution: the bottom surface of the second steel pipe is provided with a plurality of blind holes arranged in a ring array, and the top surface of the first steel pipe is fixed with a plurality of positioning posts adapted to the blind holes.

[0007] As a further description of the above technical solution: the outer side of the second arc-shaped buckle plate is provided with a countersunk hole, the inner side of the first arc-shaped buckle plate is provided with a threaded groove concentric with the countersunk hole, the outer edge of the second steel pipe is horizontally penetrating through a through hole, the bolt is sleeved in the countersunk hole, the bolt passes through the through hole and is threadedly connected in the threaded groove.

[0008] As a further description of the above technical solution: the bolt is located at one end inside the second steel pipe, which radially penetrates the through groove, and multiple arrayed reinforcing blocks are horizontally fixed in the through groove.

[0009] As a further description of the above technical solution: two limiting blocks are symmetrically fixed on the top surface of the first step surface, and a limiting groove adapted to the limiting block is provided on the lower end of one side of the first arc-shaped buckle and the lower end of the inner side of the second arc-shaped buckle.

[0010] As a further description of the above technical solution: the bottom surface of the first steel pipe is fixedly connected to the top surface of the second steel pipe, and the first steel pipe and the second steel pipe are an integral structure.

[0011] As a further description of the above technical solution: the width of the first step surface is equal to the thickness of the first arc-shaped buckle plate.

[0012] This utility model has the following beneficial effects:

[0013] Compared with existing technologies, this prestressed ribbed beam-slab composite structure has a first steel pipe on the slab and a second steel pipe on the bottom surface of the slab. The first steel pipe is fixed by two arc-shaped buckles and bolts, which fixes the two superimposed slabs and prevents the two slabs from shifting when concrete is poured into the steel pipe, thereby improving the overall structural strength of the building. Attached Figure Description

[0014] Figure 1 is a three-dimensional view of the overall structure of a prestressed ribbed beam-plate composite structure proposed in this utility model.

[0015] Figure 2 is a perspective view of the connection between the first arc-shaped buckle plate and the second arc-shaped buckle plate of a prestressed rib beam-plate composite structure proposed in this utility model.

[0016] Figure 3 is a three-dimensional view of the first steel pipe integral structure of a prestressed rib beam-plate composite structure proposed in this utility model.

[0017] Figure 4 is a main sectional view of the connection between the first steel pipe and the second steel pipe in a prestressed ribbed beam-plate composite structure proposed in this utility model.

[0018] Legend:

[0019] 1. Flat plate; 2. First steel pipe; 3. First stepped surface; 4. Positioning post; 5. Second steel pipe; 6. First arc-shaped buckle plate; 7. Second arc-shaped buckle plate; 8. Through hole; 9. Second stepped surface; 10. Countersunk hole; 11. Bolt; 12. Through groove; 13. Reinforcing block; 14. Threaded groove; 15. Limiting block; 16. Limiting groove; 17. Blind hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Referring to Figures 1 to 4, this utility model provides a prestressed ribbed beam-plate composite structure, including a flat plate 1. Multiple first steel pipes 2 are fixedly inserted through the top surface of the flat plate 1. Second steel pipes 5, adapted to the first steel pipes 2, are perpendicularly inserted through the bottom surface of the flat plate 1. The first steel pipes 2 and second steel pipes 5 are interconnected. The bottom surface of the first steel pipes 2 is fixedly connected to the top surface of the second steel pipes 5, and the first steel pipes 2 and second steel pipes 5 are an integral structure. A first stepped surface 3 is concentrically provided at the top of the first steel pipes 2, and a second stepped surface 9, adapted to the first stepped surface 3, is concentrically provided at the end of the second steel pipes 5. A first arc-shaped buckle plate 6 and a second arc-shaped buckle plate 7 are provided between the first stepped surface 3 and the second stepped surface 9. The first arc-shaped buckle plate 6 and the second arc-shaped buckle plate 7 are fixedly connected to each other by bolts 11. The width of the first stepped surface 3 is equal to the thickness of the first arc-shaped buckle plate 6. Multiple blind holes 17 arranged in a circular array are perpendicularly provided on the bottom surface of the second steel pipes 5. Multiple positioning posts 4, adapted to the blind holes 17, are perpendicularly fixed to the top surface of the first steel pipes 2.

[0022] The outer side of the second arc-shaped buckle plate 7 is provided with a countersunk hole 10, and the inner side of the first arc-shaped buckle plate 6 is provided with a threaded groove 14 concentric with the countersunk hole 10. The outer edge of the second steel pipe 5 is horizontally connected through a through hole 8. The bolt 11 is sleeved in the countersunk hole 10, passes through the through hole 8, and is threaded into the threaded groove 14. One end of the bolt 11 located inside the second steel pipe 5 is radially connected through the through groove 12. Multiple arrayed reinforcing blocks 13 are horizontally fixed in the through groove 12. Two limiting blocks 15 are symmetrically fixed on the top surface of the first step surface 3. A limiting groove 16 adapted to the limiting block 15 is provided on one side of the lower end of the first arc-shaped buckle plate 6 and the inner side of the lower end of the second arc-shaped buckle plate 7.

[0023] A first steel pipe 2 is installed on the flat plate 1, and a second steel pipe 5 is installed on the bottom surface of the flat plate 1. The first steel pipe 2 is fixed by two arc-shaped buckles and bolts 11, which fixes the two superimposed flat plates 1 and prevents the two flat plates 1 from shifting when concrete is poured into the steel pipe, thereby improving the overall structural strength of the building.

[0024] Working principle: When stacking two or more flat plates 1, the second steel pipe 5 on the bottom surface of the upper flat plate 1 is connected to the first steel pipe 2 on the top surface of the lower flat plate 1. During connection, the blind hole 17 on the bottom surface of the second steel pipe 5 is aligned with the positioning post 4 on the top surface of the first steel pipe 2, so that the positioning post 4 on the top surface of the first steel pipe 2 is inserted into the blind hole 17 on the bottom surface of the second steel pipe 5. Then, the first arc-shaped buckle plate 6 and the second arc-shaped buckle plate 7 are connected between the first step surface 3 and the second step surface 9. During connection, the limiting groove 16 on the inner side of the first arc-shaped buckle plate 6 and the second arc-shaped buckle plate 7 is aligned with the limiting block 15 on the top surface of the first step surface 3 for installation, so that the limiting block 15 is engaged with the limiting groove 16. In step 6, the bolt 11 is then passed through the countersunk hole 10 and the through hole 8, and connected in the threaded groove 14, so that the opening of the through groove 12 on the bolt 11 faces the opening of the steel pipe. Then, concrete is poured into the steel pipe, and the concrete will fill the internal space of the first steel pipe 2 and the second steel pipe 5, and also fill the through groove 12 on the bolt 11, until the concrete solidifies. There is no need to remove the two buckle plates. At the same time, the bolt 11 will be firmly fixed in the concrete column inside the steel pipe by the solidified concrete, ensuring the firmness of the connection between the first arc-shaped buckle plate 6 and the second arc-shaped buckle plate, and also ensuring the firmness of the connection between the first steel pipe 2 and the second steel pipe 5, thereby avoiding the displacement of the multi-layer stacked plate 1 when pouring concrete.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prestressed rib-slab composite structure comprising a flat slab (1), characterized in that: Multiple first steel pipes (2) are fixedly inserted through the top surface of the plate (1), and a second steel pipe (5) adapted to the first steel pipe (2) is perpendicularly inserted through the bottom surface of the plate (1). The first steel pipe (2) and the second steel pipe (5) are interconnected. The top end of the first steel pipe (2) is provided with a first step surface (3) concentrically, and the end of the second steel pipe (5) is provided with a second step surface (9) adapted to the first step surface (3) concentrically. A first arc-shaped buckle plate (6) and a second arc-shaped buckle plate (7) are provided between the first step surface (3) and the second step surface (9). The first arc-shaped buckle plate (6) and the second arc-shaped buckle plate (7) are fixedly connected to each other by bolts (11).

2. The prestressed ribbed beam-slab composite structure according to claim 1, characterized in that: The bottom surface of the second steel pipe (5) is vertically provided with a plurality of blind holes (17) arranged in a ring array, and the top surface of the first steel pipe (2) is vertically fixed with a plurality of positioning posts (4) that are adapted to the blind holes (17).

3. The prestressed ribbed slab composite construction as claimed in claim 1 wherein: The second arc-shaped buckle plate (7) has a countersunk hole (10) on its outer side, and the first arc-shaped buckle plate (6) has a threaded groove (14) concentric with the countersunk hole (10) on its inner side. The outer edge of the second steel pipe (5) has a horizontal through hole (8). The bolt (11) is fitted into the countersunk hole (10), passes through the through hole (8), and is threaded into the threaded groove (14).

4. The prestressed ribbed beam-slab composite structure according to claim 1, characterized in that: The bolt (11) is located inside the second steel pipe (5) and its end radially penetrates the through groove (12). Multiple arrayed reinforcing blocks (13) are horizontally fixed inside the through groove (12).

5. The prestressed ribbed slab composite construction as claimed in claim 1, wherein: Two limiting blocks (15) are symmetrically fixed on the top surface of the first step surface (3). A limiting groove (16) adapted to the limiting block (15) is provided on the lower end of one side of the first arc-shaped buckle (6) and the lower end of the inner side of the second arc-shaped buckle (7).

6. The prestressed ribbed slab composite construction as claimed in claim 1, wherein: The bottom surface of the first steel pipe (2) is fixedly connected to the top surface of the second steel pipe (5), and the first steel pipe (2) and the second steel pipe (5) are an integral structure.

7. The prestressed ribbed slab composite construction as claimed in claim 1, wherein: The width of the first step surface (3) is equal to the thickness of the first arc-shaped buckle plate (6).

Images