Profile steel mixed connection assembly type concrete frame beam

Abstract

The utility model discloses a section steel mixed connection assembly type concrete frame beam which comprises a cross beam body and a longitudinal beam body, a connecting piece comprises a connecting piece concrete prefabricated layer, and a connecting piece upper cavity and a connecting piece lower cavity are formed in the connecting piece concrete prefabricated layer. A concrete partition plate is arranged between the connecting piece upper cavity and the connecting piece lower cavity, a first steel plate is arranged in the concrete partition plate, and first profile steel strips are fixed to the top face and the bottom face of the first steel plate correspondingly. The longitudinal beam body comprises a longitudinal beam concrete prefabricated layer, a longitudinal beam cavity is formed in the longitudinal beam concrete prefabricated layer, the two ends of the longitudinal beam cavity are each provided with a second profile steel strip, and the second profile steel strips are fixed to the inner wall of the longitudinal beam cavity. The cross beam body comprises a cross beam concrete prefabricated layer, grooves are formed in the two ends of the cross beam concrete prefabricated layer, and second steel plates are fixed in the grooves. According to the utility model, the defects in the prior art can be overcome, and the strength and construction convenience of connecting and assembling parts are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of dental prosthesis processing technology, and in particular to a prefabricated concrete frame beam with a steel-frame hybrid connection. Background Technology

[0002] Traditional concrete frame beams are made by pouring concrete into a reinforced steel structure. To further enhance the strength of concrete frame beams, prefabricated steel-concrete composite frame beams have been developed. This type of beam structure incorporates steel sections as a skeleton and uses prefabricated modules assembled on-site, which not only strengthens the frame beam but also reduces construction difficulty. However, the strength of the connection and assembly parts of existing prefabricated steel-concrete composite frame beams is relatively low compared to other parts, and the connection process requires a significant amount of construction time. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a prefabricated concrete frame beam with hybrid steel profile connection, which can overcome the shortcomings of the prior art and enhance the strength and construction convenience of the connection and assembly parts.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A precast concrete frame beam with steel-frame hybrid connection includes a main body of horizontal beams and a main body of longitudinal beams. The main bodies of horizontal beams and longitudinal beams are connected together by connectors. Each connector includes a precast concrete layer, an upper cavity and a lower cavity within the precast concrete layer, and a concrete partition between the upper and lower cavities. A first steel plate is placed within the concrete partition, and first steel bars are fixed to the top and bottom surfaces of the first steel plate. One end of the first steel plate is located outside the precast concrete layer. A pouring hole communicating with the lower cavity of the connector is provided on the precast concrete layer, located below the first steel plate outside the precast concrete layer. A pouring port is provided on the side wall of the lower cavity of the connector, and an installation port is provided on the side wall of the upper cavity of the connector. The longitudinal beam body includes a precast concrete layer with a cavity. A second type of steel bar is fixed to the inner wall of the cavity, with its top end located outside the cavity. The crossbeam body includes a precast concrete layer with grooves at both ends. A second steel plate is fixed within the grooves. The upper and lower cavities of the connector are respectively fitted with the longitudinal beam body. A first type of steel bar is fixedly connected to the second type of steel bar corresponding to the insertion position. The crossbeam body is inserted onto a first steel plate located outside the precast concrete layer of the connector. A second steel plate is fixedly connected to the first steel plate corresponding to the insertion position. The upper, lower, and groove cavities of the connector are filled with poured concrete.

[0006] Preferably, the top surface of the concrete partition is provided with a downwardly sloping section, the top of the sloping section is provided with an overflow hole communicating with the lower cavity of the connector, an overflow hole is provided on the groove on the opposite side of the second steel plate, and a sealing plate is installed on the pouring port and the installation port respectively.

[0007] Preferably, the first type of steel bar includes a first steel bar, and second steel bars are fixedly connected to both sides of the first steel bar. The first steel bar and the second steel bars are perpendicular to each other, and a first threaded hole is provided on the first steel bar.

[0008] Preferably, the second type of steel bar includes a third steel bar, and a fourth steel bar is fixedly connected to both sides of the third steel bar. The third steel bar is provided with a second threaded hole that corresponds one-to-one with the first threaded hole. The first steel bar and the fourth steel bar are provided with through holes. The first type of steel bar and the second type of steel bar are parallel. Bolts pass through the first threaded hole and the second threaded hole to fix the first type of steel bar and the second type of steel bar. The edge of the fourth steel bar contacts the surface of the first steel bar and the second steel bar respectively. The contact position is fixedly connected by welding.

[0009] Preferably, a steel reinforcement frame is tied to the outside of the second steel plate, and a gap is provided between the bottom surface of the second steel plate and the steel reinforcement frame for inserting the first steel plate. After the first steel plate is inserted into the gap, the first steel plate and the second steel plate are fixedly connected by welding.

[0010] The beneficial effects of adopting the above technical solution are as follows: This utility model improves the beam connection structure of prefabricated concrete frame beams. The longitudinal beams and connectors are connected by inserting steel strips and then pouring concrete into the inner layer. The pouring port provides space for the fixing and connection operation between the steel strips. Two steel strips form a stable frame structure, improving the stability of the beam skeleton. The beam skeleton is then protected and strengthened by pouring concrete. The transverse beams and connectors are connected by overlapping steel plates and then pouring concrete into the inner layer. The pouring process is completed simultaneously with the longitudinal beam pouring process, improving construction efficiency. The overflow holes on the grooves not only ensure the integrity of the concrete pouring inside the transverse beams but also provide operational space for steel plate welding before pouring. The steel reinforcement frames at both ends of the transverse beams can form a good bond with the concrete pouring section after concrete pouring, effectively sharing the vertical shear force borne by the steel plates. Attached Figure Description

[0011] Figure 1 This is a structural diagram of a specific embodiment of the present invention.

[0012] Figure 2 This is an internal structural diagram of the connector in a specific embodiment of this utility model.

[0013] Figure 3 This is an internal structural diagram of the longitudinal beam body in a specific embodiment of this utility model.

[0014] Figure 4 This is a cross-sectional view of the connection position between the first type of steel bar and the second type of steel bar in a specific embodiment of this utility model.

[0015] Figure 5 This is a structural diagram showing the connection position between the connector and the main body of the crossbeam in a specific embodiment of this utility model. Detailed Implementation

[0016] Reference Figure 1-5This specific embodiment includes a crossbeam body 1 and a longitudinal beam body 2, the length ratio of the crossbeam body 1 and the longitudinal beam body 2 is not greater than 4:1. The crossbeam body 1 and the longitudinal beam body 2 are connected together by a connector 3. The connector 3 includes a precast concrete layer 4 with a thickness of 5-15cm. The precast concrete layer 4 has an upper cavity 5 and a lower cavity 7. A concrete partition 6 with a thickness of 7-10cm is provided between the upper cavity 5 and the lower cavity 7. A first steel plate 8 is provided inside the concrete partition 6. The thickness of the steel plate 8 is 8-12mm. The length of the first steel plate 8 exposed outside the precast concrete layer 4 of the connector is not less than 20cm. The top and bottom surfaces of the first steel plate 8 are respectively fixed with first-type steel bars 9. One end of the first steel plate 8 is located outside the precast concrete layer 4 of the connector. The precast concrete layer 4 is provided with a pouring hole 10 communicating with the lower cavity 7 of the connector. The pouring hole 10 is located below the first steel plate 8 outside the precast concrete layer 4. The side wall of the lower cavity 7 of the connector is provided with a pouring port 11, and the side wall of the upper cavity 5 of the connector is provided with an installation port 21. The longitudinal beam body 2 includes a precast concrete layer of the longitudinal beam. 12. The thickness of the precast concrete layer 12 of the longitudinal beam is equal to the thickness of the precast concrete layer 4 of the connector. A longitudinal beam cavity 13 is provided inside the precast concrete layer 12 of the longitudinal beam. A second type steel bar 14 is provided at each end of the longitudinal beam cavity 13. The second type steel bar 14 is fixed to the inner wall of the longitudinal beam cavity 13, and the top of the second type steel bar 14 is located on the outer side of the longitudinal beam cavity 13. The main body of the crossbeam includes a precast concrete layer 15 of the crossbeam. The thickness of the precast concrete layer 15 of the crossbeam is 7-20cm. Grooves 16 are provided at both ends of the precast concrete layer 15 of the crossbeam. The ratio of the depth of the groove 16 to the length of the main body of the crossbeam does not exceed 1. 6. A second steel plate 17 is fixed inside the groove 16. The thickness of the second steel plate 17 is equal to the thickness of the first steel plate 8, and the length of the second steel plate 17 is greater than the exposed length of the first steel plate 8. The upper cavity 5 and the lower cavity 7 of the connector are respectively inserted into the longitudinal beam body 2. The first type steel strip 9 is fixedly connected to the second type steel strip 14 corresponding to the insertion position. The crossbeam body 1 is inserted into the first steel plate 8 located outside the concrete precast layer 4 of the connector. The second steel plate 17 is fixedly connected to the first steel plate 8 corresponding to the insertion position. The upper cavity 5, the lower cavity 7 and the groove 16 of the connector are filled with concrete pouring parts. The top surface of the concrete partition 6 is provided with a downwardly sloping section 18. The top of the sloping section 18 is provided with an overflow hole 19 that communicates with the lower cavity 7 of the connector. An overflow hole 19 is provided on the groove 16 on the opposite side of the second steel plate 17 (the diameter of this overflow hole is not less than 30cm, which facilitates the fixing operation of the steel plate). A sealing plate 20 is installed on the pouring port 11 and the installation port 21 respectively.

[0017] The construction process of the concrete frame beam provided by this utility model is as follows: Prefabricated horizontal beam bodies 1, longitudinal beam bodies 2, and connectors 3 are transported to the construction site. A scaffold is erected at the construction site to temporarily support the horizontal beam bodies 1 and longitudinal beam bodies 2. The bottom longitudinal beam body 2 is fixed, and then connectors 3 are inserted into the longitudinal beam body 2 and pre-fixed. Next, the horizontal beam body 1 is inserted into the exposed first steel plate 8 on the outside of the connector 3 and pre-fixed. Finally, concrete is poured into the frame beam through the pouring port 11, and then the sealing plate 20 is installed for curing. After the upper longitudinal beam body 2 is inserted and installed on top of the connector 3, the steel plate inside the cavity 5 of the connector is pre-fixed through the installation port 21, and then the sealing plate 20 is installed. Finally, the scaffold is removed after construction is completed.

[0018] The concrete pouring section is cast on-site. During pouring, concrete is injected from the pouring port 11. After the overflow hole 19 on the concrete partition 6 produces a stable overflow, the overflow hole 19 is blocked. Then the pouring flow rate is reduced, and the pouring is completed after the overflow hole 19 on the groove 16 produces a stable overflow.

[0019] The first type of steel bar 9 includes a first steel bar 22, with second steel bars 23 fixedly connected to both sides of the first steel bar 22. The first steel bar 22 and the second steel bars 23 are perpendicular to each other, and the first steel bar 22 is provided with a first threaded hole 24. The second type of steel bar 14 includes a third steel bar 25, with fourth steel bars 26 fixedly connected to both sides of the third steel bar 25. The third steel bar 25 is provided with second threaded holes 27 corresponding one-to-one with the first threaded holes 24. The first steel bar 22 and the fourth steel bar 26 are provided with through holes 28. The first type of steel bar 9 and the second type of steel bar 14 are parallel. Bolts 29 pass through the first threaded holes 24 and the second threaded holes 27 to fix the first type of steel bar 9 and the second type of steel bar 14. The edge of the fourth steel bar 26 contacts the surface of the first steel bar 22 and the second steel bar 23 respectively, and the contact position is fixedly connected by welding. The first type of steel bar 9 and the second type of steel bar 14 are installed using a plug-in connection method. The fourth steel bar 26 supports both sides of the first type of steel bar 9. At the same time, the first steel bar 22 and the third steel bar 25 are fixed with bolts 29 to realize the frame connection between the longitudinal beam body 2 and the connecting piece 3. The thickness of the steel bars is 3-6mm.

[0020] A steel frame 30 is tied to the outside of the second steel plate 17. A gap for inserting the first steel plate 8 is provided between the bottom surface of the second steel plate 17 and the steel frame 30. After the first steel plate 8 is inserted into the gap, the first steel plate 8 and the second steel plate 17 are fixedly connected by welding.

[0021] This invention optimizes the structure of the on-site assembly part of the frame beam, improves the strength of the assembled beam, reduces the construction difficulty, and at the same time, the prefabricated parts are compatible with existing processes to the greatest extent, thus avoiding the increase in cost of the prefabricated parts.

[0022] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precast concrete frame beam with steel composite connection, comprising a main body of horizontal beams (1) and a main body of longitudinal beams (2), wherein the main body of horizontal beams (1) and the main body of longitudinal beams (2) are connected together by connectors (3), characterized in that: The connector (3) includes a precast concrete layer (4), an upper cavity (5) and a lower cavity (7) of the connector are provided in the precast concrete layer (4), a concrete partition (6) is provided between the upper cavity (5) and the lower cavity (7), a first steel plate (8) is provided in the concrete partition (6), and a first type of steel strip (9) is fixed on the top and bottom surfaces of the first steel plate (8), with one end of the first steel plate (8) located in the precast concrete layer (4). Outside the precast concrete layer (4), a pouring hole (10) communicating with the lower cavity (7) of the connector is provided on the precast concrete layer (4). The pouring hole (10) is located below the first steel plate (8) outside the precast concrete layer (4). A pouring port (11) is provided on the side wall of the lower cavity (7) of the connector, and an installation port (21) is provided on the side wall of the upper cavity (5) of the connector. The main body of the longitudinal beam (2) includes a precast concrete layer (12) of the longitudinal beam, and a precast concrete layer (12) of the longitudinal beam is provided with a pouring port (11) on the side wall of the upper cavity (5) of the connector. A longitudinal beam cavity (13) is provided, and a second type steel bar (14) is provided at each end of the longitudinal beam cavity (13). The second type steel bar (14) is fixed on the inner wall of the longitudinal beam cavity (13), and the top of the second type steel bar (14) is located on the outer side of the longitudinal beam cavity (13). The crossbeam body (1) includes a crossbeam precast concrete layer (15). The two ends of the crossbeam precast concrete layer (15) are provided with grooves (16), and a second steel plate (17) is fixed in the grooves (16). The connector is hollow. The cavity (5) and the lower cavity (7) of the connector are respectively inserted with the main body of the longitudinal beam (2). The first type of steel bar (9) is fixedly connected with the second type of steel bar (14) corresponding to the insertion position. The main body of the cross beam (1) is inserted into the first steel plate (8) located outside the precast concrete layer (4) of the connector. The second steel plate (17) is fixedly connected with the first steel plate (8) corresponding to the insertion position. The upper cavity (5), the lower cavity (7) of the connector and the groove (16) of the connector are filled with concrete pouring parts.

2. The precast concrete frame beam with hybrid steel profile connection according to claim 1, characterized in that: The concrete partition (6) has a downwardly inclined slope (18) on its top surface. The top of the slope (18) has an overflow hole (19) that communicates with the lower cavity (7) of the connector. An overflow hole (19) is provided on the groove (16) on the opposite side of the second steel plate (17). A sealing plate (20) is installed on the pouring port (11) and the installation port (21).

3. The precast concrete frame beam with hybrid steel profile connection according to claim 2, characterized in that: The first type of steel bar (9) includes a first steel bar (22), and a second steel bar (23) is fixedly connected to both sides of the first steel bar (22). The first steel bar (22) and the second steel bar (23) are perpendicular to each other, and a first threaded hole (24) is provided on the first steel bar (22).

4. The precast concrete frame beam with hybrid steel profile connection according to claim 3, characterized in that: The second type of steel bar (14) includes a third steel bar (25), and a fourth steel bar (26) is fixedly connected to both sides of the third steel bar (25). The third steel bar (25) is provided with a second threaded hole (27) corresponding to the first threaded hole (24). The first steel bar (22) and the fourth steel bar (26) are provided with through holes (28). The first type of steel bar (9) is parallel to the second type of steel bar (14). The bolt (29) passes through the first threaded hole (24) and the second threaded hole (27) to fix the first type of steel bar (9) and the second type of steel bar (14). The edge of the fourth steel bar (26) contacts the surface of the first steel bar (22) and the second steel bar (23) respectively. The contact position is fixedly connected by welding.

5. The precast concrete frame beam with hybrid steel profile connection according to claim 2, characterized in that: A steel frame (30) is tied to the outside of the second steel plate (17). A gap is provided between the bottom surface of the second steel plate (17) and the steel frame (30) for inserting the first steel plate (8). After the first steel plate (8) is inserted into the gap, the first steel plate (8) and the second steel plate (17) are fixedly connected by welding.

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