Laminated slab and steel beam connecting structure

Abstract

The utility model provides a laminated slab and steel beam connecting structure, which relates to the technical field of constructional engineering, and comprises a supporting seat and an embedded frame strip, the supporting seat is provided with a mounting structure for fixing the supporting seat on a steel beam; the embedded frame strips are fixed to the edges of the laminated slab in an embedded mode. A plurality of connecting supporting rods are fixedly arranged on the side wall of the pre-buried frame strip, a plurality of positioning clamping grooves allowing the connecting supporting rods to be clamped therein are formed in the two sides of the supporting base respectively, external threads are arranged on the side walls of the connecting supporting rods, and limiting nuts are arranged on the connecting supporting rods in a matched mode. According to the utility model, efficient, accurate and reliable connection between the laminated slab and the steel beam is realized, and meanwhile, the structural strength and integrity of the steel beam are ensured.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically, to a composite slab and steel beam connection structure. Background Technology

[0002] In prefabricated building structures, the reliable connection between precast composite slabs and steel beams is a crucial aspect of ensuring structural integrity. In traditional construction, to connect the composite slabs and steel beams, studs or shear members were typically welded onto the steel beams, and corresponding anchoring reinforcement bars or sleeves were pre-embedded during the prefabrication of the composite slabs. During on-site installation, the composite slabs were hoisted onto the steel beams, allowing for an initial connection between the pre-embedded parts on the composite slabs and the studs or shear members welded to the steel beams. Finally, a complex process of rebar tying and welding was employed to achieve the final connection and force transfer between the two components.

[0003] While traditional methods of connecting composite slabs to steel beams can guarantee the final structural performance, welding studs or shear members to the steel beams can easily damage the beams due to the heat-affected zone, affecting their structural strength and durability. Furthermore, the construction process requires on-site formwork and rebar tying, resulting in long construction periods and low efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between a composite plate and a steel beam, which can achieve an efficient, precise and reliable connection between the composite plate and the steel beam without damaging the overall structure of the steel beam, thus ensuring the structural strength and integrity of the steel beam.

[0005] This utility model is achieved through the following technical solution:

[0006] A composite slab and steel beam connection structure, characterized in that it includes: a support base and a pre-embedded frame strip, wherein the support base is provided with an installation structure for fixing the support base to the steel beam; the pre-embedded frame strip is fixed to the edge of the composite slab by pre-embedding; a plurality of connecting rods are fixedly provided on the side wall of the pre-embedded frame strip; a plurality of positioning slots for the connecting rods to be inserted are respectively opened on both sides of the support base; the side wall of the connecting rod is provided with external threads, and the connecting rod is fitted with a limit nut.

[0007] Preferably, the top of the support base is fixed with an upper cover plate by bolts, and the upper cover plate is used to close the opening at the top of the positioning slot.

[0008] Preferably, the mounting structure includes a first clamping block and a second clamping block, which are respectively fixed to both sides of the support base by bolts. Both the first clamping block and the second clamping block are provided with limit slots, and the first clamping block and the second clamping block are respectively clamped to the flange plates on both sides of the steel beam through the limit slots.

[0009] Preferably, the lower sidewall of the limiting slot is inclined and gradually slopes downwards along the direction close to the slot opening.

[0010] Preferably, the bottom end of the support base is provided with several anti-slip protrusions, which are used to press against the top end of the steel beam.

[0011] Preferably, a top support frame is fixedly provided on both the first clamping block and the second clamping block. A guide sleeve is fixedly provided on the top support frame. A top support block is slidably passed through the guide sleeve. A transmission structure is provided on the top support frame to push the top support block to slide, so that the top support block abuts against the bottom end of the composite plate and supports the composite plate.

[0012] Preferably, the transmission structure includes a support sleeve horizontally fixed on the top support frame, a support rod slidably inserted in the support sleeve, and an adjusting screw rotatably inserted on the support rod. The adjusting screw is threadedly engaged with the top support frame. A transmission block is fixedly provided on the side of the support rod. A guide slope is provided at the top of the transmission block. The guide slope abuts against the bottom end of the top support block to guide the top support block to move up and down.

[0013] Preferably, the pre-embedded frame strip is provided with a plurality of prestressed anchor rods, and each prestressed anchor rod is embedded in the composite slab.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0015] 1. This application achieves an efficient, precise, and reliable connection between the composite slab and the steel beam, while ensuring the structural strength and integrity of the steel beam. Specifically, the installation structure can fix the support base to the steel beam without damaging the overall structure of the steel beam, thus ensuring its structural strength and integrity. The pre-embedded frame strip is embedded in the edge of the composite slab, and during installation, each connecting rod on the pre-embedded frame strip is snapped into the corresponding positioning slot on the support base, enabling rapid and precise installation of the composite slab, improving construction efficiency. Then, the limit nuts are used to adapt the connecting rods, achieving a reliable connection between the composite slab and the steel beam, which can effectively transfer the load.

[0016] 2. This application further prevents the connecting rod from coming out of the positioning slot by fixing the top cover plate with bolts to the top of the support base to close the top opening of the positioning slot, thereby enhancing the stability and reliability of the connection structure between the composite plate and the steel beam.

[0017] 3. This application enhances the connection stability between the composite slab and the steel beam by installing top support frames on both the first and second clamping blocks, and vertically sliding top support blocks on the top support frames. These top support blocks, pushed by the transmission structure, abut against the bottom of the composite slab, thus supporting the composite slab. Simultaneously, the top support blocks and frames directly transfer most of the load of the composite slab to the steel beam, reducing the bearing pressure on the connecting rods and preventing deformation of the connecting rods due to building vibration or excessive bearing pressure during later use. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model, used to show the cooperation relationship between the embedded frame strip and the support base;

[0020] Figure 3 This is a side view of the structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Support base; 11. Positioning slot; 12. First clamping block; 13. Second clamping block; 14. Limiting slot; 15. Anti-slip protrusion; 2. Embedded frame strip; 21. Connecting support rod; 22. Limiting nut; 23. Prestressed anchor rod; 3. Top cover plate; 4. Top support frame; 41. Guide sleeve; 42. Top support block; 43. Support sleeve; 44. Support rod; 45. Adjusting screw; 46. Transmission block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] The following is for reference Figures 1-3As shown in the illustration, and further explained with reference to a specific embodiment, this embodiment provides a connection structure between a composite slab and a steel beam, including a support base 1 and a pre-embedded frame strip 2. The support base 1 is fixed to the steel beam via an installation structure. The pre-embedded frame strip 2 is embedded in the edge of the composite slab. Multiple connecting rods 21 are fixedly installed on the side wall of the pre-embedded frame strip 2. Several positioning slots 11 are respectively provided on both sides of the support base 1 for the connecting rods 21 to engage. The side wall of the connecting rod 21 is provided with external threads, and a limit nut 22 is adapted to the connecting rod 21. This achieves an efficient, precise, and reliable connection between the composite slab and the steel beam without damaging the steel beam structure.

[0025] Reference Figure 1 Specifically, the support base 1 can be a block structure made of high-strength steel, and its shape can be designed according to the shape of the steel beam and installation requirements, such as a rectangular block. The installation structure includes a first clamping block 12 and a second clamping block 13, which can be formed by cutting, bending and welding steel plates. The first clamping block 12 and the second clamping block 13 are respectively fixed to the bolt holes on both sides of the support base 1 by bolts. Both the first clamping block 12 and the second clamping block 13 are provided with limit slots 14, which are grooves formed on the clamping block by milling. The first clamping block 12 and the second clamping block 13 are clamped to the flange plates on both sides of the steel beam by the limit slots 14 and fixed by bolts, so that the support base 1 is firmly installed on the steel beam without damaging the overall structure of the steel beam, thus ensuring the structural strength and integrity of the steel beam.

[0026] Reference Figure 1 and Figure 3 Furthermore, multiple bolt holes are provided on both sides of the support base 1. The bolt holes on the same side are evenly distributed along the length of the support base 1, so that the installation positions of the first clamping block 12 and the second clamping block 13 can be adjusted according to actual construction needs. In addition, through this design, multiple sets of installation structures can be set on each support base 1 as needed to ensure the installation stability of the support base 1 on the steel beam.

[0027] Reference Figure 1 The lower side wall of the limiting slot 14 is inclined and gradually slopes downwards towards the slot opening. This inclination facilitates the clamping block's insertion into the steel beam flange. Simultaneously, during installation, as the bolts are tightened, the first clamping block 12 and the second clamping block 13, guided by the inclined surface, bring the support base 1 closer to the top wall of the steel beam, further improving the installation stability of the support base 1.

[0028] Reference Figure 1The bottom end of the support base 1 is also provided with several anti-slip protrusions 15. The anti-slip protrusions 15 can be small pieces of steel welded to the bottom of the support base 1, or they can be integrally formed with the support base 1. Their shape can be rectangular, triangular or trapezoidal. They are used to press against the top of the steel beam, increase the friction between the support base 1 and the steel beam, and prevent the support base 1 from sliding.

[0029] Reference Figure 1 Specifically, the embedded frame strip 2 is fixed to the edge of the composite slab through pre-embedding. The embedded frame strip 2 can be a rectangular frame structure, and its dimensions are designed according to the edge dimensions of the composite slab. Several prestressed anchor rods 23 are provided on the embedded frame strip 2. The prestressed anchor rods 23 can be high-strength steel strands. Each prestressed anchor rod 23 is embedded in the composite slab. By pre-arranging the prestressed anchor rods 23 during the prefabrication of the composite slab and then pouring concrete, the prestressed anchor rods 23 and the composite slab form an integral whole, enhancing the structural strength of the composite slab.

[0030] Reference Figure 1 and Figure 2 The connecting rod 21 can be a steel bar, which is fixed to the side wall of the embedded frame strip 2 by welding. Its diameter is adapted to the positioning groove 11 on the support seat 1. The side wall of the connecting rod 21 is provided with external threads, and the connecting rod 21 is fitted with a limit nut 22. The limit nut 22 can be an ordinary hexagonal nut. After the connecting rod 21 is inserted into the corresponding positioning groove 11 on the support seat 1, the limit nut 22 is connected to the connecting rod 21 and tightened to firmly fix the connecting rod 21 on the support seat 1, thereby realizing the effective connection between the composite plate and the steel beam.

[0031] Reference Figure 1 Specifically, a top cover plate 3 is bolted to the top of the support base 1. The top cover plate 3 can be a steel plate, and its shape is adapted to the top of the support base 1. Bolts are tightened to secure the support base 1 by creating corresponding bolt holes in the top cover plate 3 and the top of the support base 1. The top cover plate 3 can close the opening at the top of the positioning slot 11, preventing the connecting rod 21 from dislodging from the positioning slot 11, further enhancing the stability and reliability of the connection structure between the composite plate and the steel beam.

[0032] Reference Figure 1Specifically, a top support frame 4 is fixedly installed on both the first clamping block 12 and the second clamping block 13. The top support frame 4 can be a frame structure welded from channel steel and fixed to the clamping block by welding. A guide sleeve 41 is fixedly installed on the top support frame 4. The guide sleeve 41 is made of high-strength steel and is fixed to the top support frame 4 by welding. A top support block 42 slides through the guide sleeve 41. The shape of the top support block 42 is adapted to the guide sleeve 41 and can slide freely within the guide sleeve 41. A transmission structure is provided on the top support frame 4, which can push the top support block 42 to slide, so that the top support block 42 can abut against the bottom end of the composite slab, support the composite slab, and enhance the connection stability between the composite slab and the steel beam. At the same time, the installation of the top support block 42 and the top support frame 4 directly transmits most of the load of the composite slab to the steel beam, reducing the bearing pressure of the connecting support rod 21 and preventing the connecting support rod 21 from deforming due to building vibration or excessive bearing pressure during later use.

[0033] Reference Figure 1 Specifically, the transmission structure includes a support sleeve 43 horizontally fixed on the top support frame 4, a support rod 44 slidably passing through the support sleeve 43, and an adjusting screw 45 rotatably passing through the support rod 44. The support sleeve 43 is also made of high-strength steel and is fixed to the top support frame 4 by welding. The diameter of the support rod 44 is adapted to the inner diameter of the support sleeve 43, allowing it to slide freely within the support sleeve 43. The adjusting screw 45 is threaded into the top support frame 4, and rotating the adjusting screw 45 allows the support rod 44 to slide within the support sleeve 43. A transmission block 46 is fixedly installed on the side of the support rod 44, and the transmission block 46 is fixed to the support rod 44 by welding. The top of the transmission block 46 is provided with a guide slope, which abuts against the bottom of the top support block 42. The transmission block 46 on the support rod 44 moves with the support rod 44, and the guide slope of the transmission block 46 abuts against the bottom of the top support block 42, thereby converting the horizontal movement of the support rod 44 into the vertical movement of the top support block 42.

[0034] The implementation principle of this embodiment is as follows: The composite slab and steel beam connection structure of this application achieves an efficient, precise, and reliable connection between the composite slab and the steel beam through the synergistic action of the support base 1, the pre-embedded frame strip 2, and the installation structure, while ensuring the structural strength and integrity of the steel beam. The installation structure uses a clamping method to fix the support base 1, which will not damage the overall structure of the steel beam, ensuring the structural strength and integrity of the steel beam. The pre-embedded frame strip 2 is pre-embedded in the edge of the composite slab, and during the installation of the composite slab, each connecting rod 21 on the pre-embedded frame strip 2 is snapped into the corresponding positioning slot 11 on the support base 1, which can achieve rapid and precise installation of the composite slab, improving construction efficiency. Then, the limiting nut 22 is used to adapt the connecting rod 21 to achieve a reliable connection between the composite slab and the steel beam, which can effectively transfer the load. The entire connection structure is simple and practical, with strong practicality and innovation. Compared with traditional connection methods, it greatly improves construction efficiency and connection quality.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A composite slab and steel beam connection structure, characterized in that, include: The support base (1) and the embedded frame strip (2) are provided. The support base (1) is provided with an installation structure for fixing the support base (1) to the steel beam. The embedded frame strip (2) is fixed to the edge of the composite plate by pre-embedding. The side wall of the embedded frame strip (2) is fixedly provided with multiple connecting rods (21). The two sides of the support base (1) are respectively provided with a number of positioning slots (11) for the connecting rods (21) to be inserted. The side wall of the connecting rod (21) is provided with external threads, and the connecting rod (21) is adapted to be fitted with a limit nut (22).

2. The connecting structure of the steel beam and the laminated slab according to claim 1, wherein The top of the support base (1) is fixed with an upper cover plate (3) by bolts, and the upper cover plate (3) is used to close the opening at the top of the positioning slot (11).

3. The connecting structure of the steel beam and the laminated slab according to claim 1, wherein The installation structure includes a first clamping block (12) and a second clamping block (13). The first clamping block (12) and the second clamping block (13) are respectively fixed to both sides of the support base (1) by bolts. The first clamping block (12) and the second clamping block (13) are provided with limit slots (14), and the first clamping block (12) and the second clamping block (13) are respectively clamped to the flange plates on both sides of the steel beam through the limit slots (14).

4. The connecting structure of the steel beam and the laminated slab according to claim 3, wherein The lower side wall of the limiting slot (14) is inclined and gradually tilts downward along the direction close to the slot opening.

5. The laminated slab and steel beam connection structure according to claim 4, wherein The bottom end of the support base (1) is provided with several anti-slip protrusions (15) and is used to press against the top of the steel beam.

6. The connecting structure of the steel beam and the laminated slab according to claim 3, wherein A top support frame (4) is fixedly provided on the first clamping block (12) and the second clamping block (13). A guide sleeve (41) is fixedly provided on the top support frame (4). A top support block (42) is slidably passed through the guide sleeve (41). A transmission structure is provided on the top support frame (4) to push the top support block (42) to slide, so that the top support block (42) is used to abut against the bottom end of the composite plate and support the composite plate.

7. The connecting structure of the steel beam and the laminated slab according to claim 6, wherein The transmission structure includes a support sleeve (43) horizontally fixed on the top support frame (4), a support rod (44) slidably inserted in the support sleeve (43), and an adjusting screw (45) rotatably inserted on the support rod (44). The adjusting screw (45) is threadedly engaged with the top support frame (4). A transmission block (46) is fixedly provided on the side of the support rod (44). A guide slope is provided at the top of the transmission block (46). The guide slope abuts against the bottom end of the top support block (42) to guide the top support block (42) to move up and down.

8. The connecting structure of the steel beam and the laminated slab according to claim 1, wherein The pre-embedded frame strip (2) is provided with a number of prestressed anchor rods (23), and each prestressed anchor rod (23) is embedded in the composite plate.

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