CN114575509B - Assembled building beam plate connecting structure and connecting method - Google Patents

Abstract

The invention discloses a prefabricated building beam-slab connection structure and a connection method, and relates to the technical field of building beams and slabs. In the present invention, the No. 1 beam group is spliced with the adjacent No. 2 beam group and the No. 3 beam group, and the No. 1 beam group is spliced with the No. 2 beam groups on both sides; the No. 1 beam group and the No. 2 beam group are both between the No. 2 and No. 3 beams. between the groups, and the No. 1 beam group and the No. 2 beam group are arranged in a staggered manner; the No. 1 beam group, the No. 2 beam group and the No. 3 beam group are spliced into support beams. Both sides of the support beam are provided with a beam supported on the top of the support beam. The No. 1 prefabricated panel and the No. 2 prefabricated panel are both snap-connected to the support beams. The present invention realizes the connection and fixation between the No. 1 beam group, the No. 2 beam group and the No. 3 beam group by using a detachable splicing method, and can be used as needed. The length of the beam-slab connection structure can be flexibly adjusted to meet the construction needs of prefabricated buildings of different sizes, thereby increasing the application scope of the beam-slab connection structure.

Description

A kind of prefabricated building beam-slab connection structure and connection method

Technical field

The invention belongs to the technical field of building beams and slabs, and in particular relates to a prefabricated building beam-slab connection structure and a connection method.

Background technique

Beam slabs are a combination of interacting beams and slabs in the floor. They are prefabricated in the factory, transported to the construction site, and assembled through the building beam-slab connection structure.

After searching, the Chinese invention patent application number is 202111001633.0, a prefabricated building beam-slab connection structure and connection method, including: superimposed beam A; said superimposed beam A is set as an inverted "T"-shaped beam structure; superimposed beam A includes: beard rib A, which is installed inside the composite beam A; through the setting of self-locking plate A and self-locking plate B, and through the adjustment of the concave and convex parts of self-locking plate A and self-locking plate B. , so that it can be applied to composite beams with stirrup spacing of different sizes, and this connection structure can be used to connect prefabricated beam-plate structures with different size parameters. It solves the problems of traditional prefabricated buildings with poor integrity at beam-plate connection nodes, difficulty in adjusting the installation height of prefabricated panels, heavy workload in scaffolding erection, insufficient vertical seismic resistance, and prone to significant defects such as shear damage.

However, during the implementation of specific embodiments of the present invention, the inventor found that the above-mentioned beam-plate connection structure still has the following shortcomings: the beam-plate connection structure is an integrated structure and cannot be flexibly adjusted as needed during building assembly. The length of the beam-slab connection structure is adapted to prefabricated buildings of different sizes, thereby reducing the application scope of the beam-slab connection structure. At the same time, when the beam-slab connection structure undergoes large deformations that affect its safe use, the entire beam needs to be replaced. The plate connection structure undoubtedly increases the cost of using the beam-plate connection structure. To this end, we have designed a prefabricated building beam-slab connection structure and connection method to solve the above technical problems.

Contents of the invention

The object of the present invention is to provide a prefabricated building beam-slab connection structure and a connection method. Through the design of the No. 1 beam group, the No. 2 beam group and the No. 3 beam group, the existing beam-slab connection structure is an integrated structure. , during building assembly, the length of the beam-plate connection structure cannot be flexibly adjusted as needed to adapt to prefabricated buildings of different sizes, thereby reducing the application scope of the beam-plate connection structure. At the same time, when the beam-plate connection structure undergoes large deformation When its safe use is affected, the entire beam-plate connection structure needs to be replaced, which undoubtedly increases the cost of using the beam-plate connection structure.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

The invention is a prefabricated building beam-slab connection structure, including a No. 1 beam group, a No. 2 beam group and a No. 3 beam group; the No. 1 beam group is spliced with its adjacent No. 2 beam group and No. 3 beam group. The No. 1 beam group is spliced with the No. 2 beam groups on both sides; the No. 1 beam group and the No. 2 beam group are both between the No. 2 and No. 3 beam groups that are arranged oppositely, and the No. 1 beam group It is staggered with the No. 2 beam group; the No. 1 beam group, the No. 2 beam group and the No. 3 beam group are spliced into a support beam. Both sides of the support beam are provided with a No. 1 prefabricated plate and a No. 2 prefabricated plate supported on the top of the support beam. No. 1 prefabricated panel, and the No. 1 prefabricated panel and the No. 2 prefabricated panel are both snap-connected to the support beams.

Further, the No. 1 beam group includes a No. 1 T-shaped beam, a plurality of connecting components are integrated inside the No. 1 T-shaped beam, and a positioning component is integrated at the top of the No. 1 T-shaped beam;

The connection component includes a double-pass connecting steel pipe arranged inside the No. 1 T-shaped beam. A reinforcing plate is fixed on the peripheral side of the connecting steel pipe. A number of steel reinforcement holes are provided on the surface of the reinforcing plate. The No. 1 T-shaped beam The internal steel bars pass through the steel bar reinforcement holes to achieve an integrated connection between the connecting component and the No. 1 T-shaped beam.

Further, the positioning assembly includes a positioning plate integrated with the No. 1 T-shaped beam. Two positioning holes are symmetrically provided on the surface of the positioning plate; a single-pass internally threaded steel pipe is fixedly connected to the surface of the positioning plate. The threaded steel pipe is coaxial with the through opening at the top of the No. 1 T-shaped beam; a number of reinforcing columns are fixed on the outer surface of the internally threaded steel pipe, and the positioning plate is fixedly connected to the steel bars in the No. 1 T-shaped beam.

Furthermore, the No. 1 beam group also includes an anti-seismic component. The anti-seismic component includes a rotating column that runs through the through opening and is threaded with the corresponding internally threaded steel pipe. A pressure seat is fixed on the side of the rotating column, and the bottom of the pressure seat An elastic anti-seismic panel is provided that closely fits on the top of the No. 1 prefabricated panel and the No. 2 prefabricated panel.

Further, the No. 2 beam group includes a No. 2 T-shaped beam. A plurality of No. 1 steel columns are provided inside the No. 2 T-shaped beam. The steel bars inside the No. 2 T-shaped beam connect the No. 1 steel columns to achieve a The integrated connection between the No. 1 steel column and the No. 2 T-shaped beam; the No. 1 steel column on the No. 2 beam group is snap-connected to the connecting steel pipe on the adjacent No. 1 beam group.

Further, the No. 3 beam group includes a No. 3 T-shaped beam, and a plurality of No. 2 steel columns are provided inside the No. 3 T-shaped beam. The steel bars inside the No. 3 T-shaped beam are connected to the No. 2 steel columns to realize the second beam. Integrated connection between No. 3 steel column and No. 3 T-shaped beam.

Further, the No. 1 prefabricated panel is provided with a No. 1 positioning piece on both opposite sides of the plate, and a No. 1 positioning piece is fixed inside the No. 1 limit opening. The No. 1 positioning piece is in contact with the corresponding positioning position on the No. 1 beam group. The holes are snap-connected; the No. 2 prefabricated plate is provided with No. 2 limit openings on opposite sides of the plate, and No. 2 positioning pieces are fixed inside the No. 2 limit openings. The No. 2 positioning pieces are connected to the corresponding No. 1 beams. The positioning holes on the set snap into place.

A connection method for a prefabricated building beam-slab connection structure, including the following steps:

SS01 first splices the first No. 1 beam group to the No. 3 beam group, and splices the No. 2 beam group to the first No. 1 beam group to achieve the stability of the No. 2 beam group and the first No. 1 beam group. connect;

SS02 splices the second No. 1 beam group to the No. 2 beam group in SS01, and then splices another No. 2 beam group to the second No. 1 beam group to realize the connection between the No. 2 beam group and the first Stable connection of No. 1 beam group;

SS03 According to the length of the required support beam, repeat steps SS01 to SS02, and then splice the final No. 3 beam group to the adjacent No. 1 beam group to form a complete support beam;

SS04 After lifting the No. 1 prefabricated panel to the top of the support beam, the No. 1 prefabricated panel is connected to the corresponding No. 1 beam group. The same connection method is used to realize the snap connection of multiple No. 1 prefabricated panels on the support beam. Finally, the No. 1 prefabricated panel is connected to the corresponding No. 1 beam group. The No. 2 prefabricated panel is lifted to the top of the support beam to realize the snap connection between the No. 2 prefabricated panel and the corresponding No. 1 beam group;

SS05 splices and assembles the required number of support beams as needed, and achieves a stable connection between the support beams and the prefabricated panels.

The invention has the following beneficial effects:

1. The present invention can realize the connection and fixation between the No. 1 beam group, the No. 2 beam group and the No. 3 beam group by using the detachable splicing method. The length of the beam-slab connection structure can be flexibly adjusted according to needs to meet the construction needs of prefabricated buildings of different sizes, thus increasing the application scope of the beam-slab connection structure.

2. In the present invention, positioning holes are provided on the No. 1 beam group, and positioning parts are respectively provided on the No. 1 prefabricated plate and the No. 2 prefabricated plate. The cooperation between the positioning parts and the positioning holes can realize the positioning of the prefabricated plate and the No. 1 beam group. The connection is fixed, which can effectively prevent the horizontal shaking of the prefabricated plate and cause it to break away from the No. 1 beam group. At the same time, through the design of the No. 1 beam group, the No. 2 beam group and the No. 3 beam group of the T-shaped structure, the contact between the prefabricated plate and the supporting beam is increased. area, thereby improving the stability of the connection between the precast panels and the supporting beams.

3. The present invention integrates a positioning component inside the No. 1 T-shaped beam, and utilizes the cooperation between the internally threaded steel pipe on the positioning component and the anti-seismic component, so that the elastic anti-seismic plate on the anti-seismic component can elastically squeeze the top of the prefabricated plate. It can reduce the impact of vibration on the beam-plate connection structure, thereby improving the stability and safety of the beam-plate connection structure.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to describe the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the connection between a prefabricated building beam-slab connection structure and prefabricated panels.

Figure 2 is a schematic structural diagram of a prefabricated building beam-slab connection structure.

Figure 3 is a schematic structural diagram of the No. 1 beam group.

Figure 4 is a front view of the structure of Figure 3.

Figure 5 is a schematic structural diagram of the No. 2 beam group.

Figure 6 is a schematic structural diagram of the No. 3 beam group.

Figure 7 is a partial structural diagram of Figure 3.

Figure 8 is a schematic structural diagram of the connection component.

Figure 9 is a schematic structural diagram of the positioning component.

FIG. 10 is a front view of the structure of FIG. 9 .

Figure 11 is a schematic structural diagram of the anti-seismic component.

Figure 12 is a schematic structural diagram of the No. 1 prefabricated panel.

Figure 13 is a schematic structural diagram of the No. 2 prefabricated panel.

In the drawings, the parts represented by each number are listed as follows:

1-No.1 beam group, 11-No.1 T-shaped beam, 12-connection component, 121-connection steel pipe, 122-reinforcement plate, 123-reinforcement hole, 13-positioning component, 131-positioning plate, 132-positioning hole , 133-internally threaded steel pipe, 134-reinforced column, 14-through opening, 15-seismic component, 151-rotating column, 152-pressure seat, 153-elastic seismic plate, 2-No. 2 beam group, 21-No. 2 T Shaped beam, 22-No. 1 steel column, 3-No. 3 beam group, 31-No. 3 T-shaped beam, 32-No. 2 steel column, 4-No. 1 prefabricated plate, 41-No. 1 limit opening, 42-One No. 2 positioning piece, 5-No. 2 prefabricated plate, 51-No. 2 limit opening, 52-No. 2 positioning piece.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example 1

Please refer to Figures 1-13. The present invention is a prefabricated building beam-slab connection structure, including a No. 1 beam group 1, a No. 2 beam group 2 and a No. 3 beam group 3;

The No. 1 beam group 1 is spliced with its adjacent No. 2 beam group 2 and the No. 3 beam group 3. The No. 1 beam group 1 is spliced with the No. 2 beam group 2 on both sides; the No. 1 beam group 1 and the No. 2 beam group are spliced together. The beam groups 2 are all between the two and three beam groups 3 arranged opposite each other, and the beam groups 1 and 2 are staggered;

The No. 1 beam group 1, the No. 2 beam group 2 and the No. 3 beam group 3 are spliced into support beams. Through this connection method, they are spliced and assembled into multiple support beams. Both sides of the support beams are equipped with No. 1 prefabricated beams supported on the top of the support beams. Board 4 and No. 2 prefabricated board 5, No. 1 prefabricated board 4 and No. 2 prefabricated board 5 are all snap-connected to the support beams, and No. 1 prefabricated board 4 and No. 2 prefabricated board 5 are load-bearingly connected between the two support beams; by Set up beam group 1, beam group 2, and beam group 3, and use detachable splicing methods to realize the connection and fixation between beam group 1, beam group 2, and beam group 3. The length of the beam-slab connection structure can be flexibly adjusted as needed to meet the construction needs of prefabricated buildings of different sizes, thereby increasing the application scope of the beam-slab connection structure.

In this embodiment, the No. 1 beam group 1 includes a No. 1 T-shaped beam 11. The No. 1 T-shaped beam 11 is made of reinforced concrete. The No. 1 T-shaped beam 11 is integrally provided with a plurality of connecting components 12 inside. Through the connection The component 12 realizes the splicing and fixing of the No. 2 beam group 2 and the No. 3 beam group 3 on both sides of the No. 1 T-shaped beam 11. The top of the No. 1 T-shaped beam 11 is integrated with a positioning component 13 for detachable connection and fixation. No. 4 prefabricated panel and No. 2 prefabricated panel 5;

The connection component 12 includes a double-pass connecting steel pipe 121 arranged inside the No. 1 T-shaped beam 11. A reinforcing plate 122 is fixed on the side of the connecting steel pipe 121. A number of steel reinforcement holes 123 are provided on the surface of the reinforcing plate 122. The No. 1 T-shaped beam 11 The internal steel bars are connected through the steel bar reinforcement holes 123 to achieve an integrated connection between the connecting component 12 and the No. 1 T-shaped beam 11. In this way, the connecting component 12 is firmly installed in the No. 1 T-shaped beam 11, thereby adding a No. 1 T-shaped beam. Strength of beam group 1.

In this embodiment, the positioning assembly 13 includes a positioning plate 131 integrated with the No. 1 T-shaped beam 11. The positioning plate 131 is symmetrically provided with two positioning holes 132 on its surface; the No. 1 prefabricated plate 4 is provided with a No. 1 limit opening on both opposite sides. 41. The No. 1 positioning piece 42 is fixed inside the No. 1 limit opening 41, and the No. 1 positioning piece 42 is engaged with the corresponding positioning hole 132 on the No. 1 beam group 1; the No. 2 prefabricated panel 5 is provided with two No. 2 limit opening 51, No. 2 positioning piece 52 is fixed inside the No. 2 limit opening 51, and the No. 2 positioning piece 52 is snap-connected with the corresponding positioning hole 132 on the No. 1 beam set 1; through the No. 1 beam set 1 Positioning holes 132 are provided on the No. 1 prefabricated plate 4 and No. 2 prefabricated plate 5. Positioning parts are respectively provided on the No. 1 prefabricated plate 4 and No. 2 prefabricated plate 5. The cooperation between the positioning parts and the positioning holes 132 can realize the connection and fixation of the prefabricated plate and the No. 1 beam group 1, which can effectively Prevent the horizontal shaking of the prefabricated panels from causing them to detach from the No. 1 beam group 1. At the same time, through the design of the T-shaped structure of the No. 1 beam group 1, the No. 2 beam group 2, and the No. 3 beam group 3, the contact area between the prefabricated panels and the support beams is increased. , thereby improving the stability of the connection between the prefabricated panels and the supporting beams;

A single-pass internally threaded steel pipe 133 is fixedly connected to the surface of the positioning plate 131. The internally threaded steel pipe 133 is coaxial with the through opening 14 at the top of the No. 1 T-shaped beam 11; a number of reinforcing columns 134 are fixed on the outer surface of the internally threaded steel pipe 133. The positioning plate 131 is fixedly connected to the steel bars in the No. 1 T-shaped beam 11. In this way, the positioning component 13 is firmly installed in the No. 1 T-shaped beam 11, thereby increasing the strength of the connection between the No. 1 T-shaped beam 11 and the positioning component 13.

In this embodiment, beam group 1 also includes an anti-seismic component 15;

The anti-seismic component 15 includes a rotating column 151 that penetrates through the through opening 14 and is threaded with the corresponding internally threaded steel pipe 133. A pressure base 152 is fixed on the side of the rotating column 151. The bottom of the pressure base 152 is provided with a pressure base that closely fits the No. 1 prefabricated plate 4 and the second prefabricated plate 152. The elastic anti-seismic plate 153 on the top of the No. 1 prefabricated panel 5; by integrating the positioning component 13 inside the No. 1 T-shaped beam 11, and utilizing the cooperation between the internally threaded steel pipe 133 on the positioning component 13 and the anti-seismic component 15, the anti-seismic component 15 The elastic anti-seismic plate 153 elastically squeezes the top of the prefabricated plate, which can reduce the impact of vibration on the beam-plate connection structure, thereby improving the stability and safety of the beam-plate connection structure.

In this embodiment, the No. 2 beam group 2 includes a No. 2 T-shaped beam 21. A plurality of No. 1 steel columns 22 are provided inside the No. 2 T-shaped beam 21. The steel bars inside the No. 2 T-shaped beam 21 are connected to the No. 1 steel columns 22. Realize the integrated connection between the No. 1 steel column 22 and the No. 2 T-shaped beam 21, and increase the strength of the connection between the No. 1 steel column 22 and the No. 2 T-shaped beam 21 through this connection method;

The No. 1 steel column 22 on the No. 2 beam group 2 is engaged with the connecting steel pipe 121 on the adjacent No. 1 beam group 1, thereby realizing the connection and fixation of the No. 2 beam group 2 and the No. 1 beam group 1.

In this embodiment, the No. 3 beam group 3 includes a No. 3 T-shaped beam 31. A plurality of No. 2 steel columns 32 are provided inside the No. 3 T-shaped beam 31. The steel bars inside the No. 3 T-shaped beam 31 connect the No. 2 steel columns 32. The integrated connection between the No. 2 steel column 32 and the No. 3 T-shaped beam 31 is realized, and the strength of the connection between the No. 2 steel column 32 and the No. 3 T-shaped beam 31 is increased through this connection method.

Example 2

A connection method for a prefabricated building beam-slab connection structure, including the following steps:

SS01 first splices the first No. 1 beam group 1 to the No. 3 beam group 3, and splices the No. 2 beam group 2 to the first No. 1 beam group 1 to realize the connection between the No. 2 beam group 2 and the first No. 1 beam group. Stable connection of beam group 1;

SS02 splices the second No. 1 beam group 1 to the No. 2 beam group 2 in SS01, and then splices another No. 2 beam group 2 to the second No. 1 beam group 1 to realize the No. 2 beam group 2. Stable connection with the first No. 1 beam group 1;

SS03 According to the length of the required support beam, repeat steps SS01 to SS02, and then splice the last No. 3 beam group 3 to the adjacent No. 1 beam group 1, thus splicing into a complete support beam, which can be spliced according to the building assembly needs. Complete the required number of support beams;

SS04 After hoisting the No. 1 prefabricated panel 4 to the top of the support beam, the No. 1 prefabricated panel 4 is connected to the corresponding No. 1 beam group 1. The same connection method is used to realize the snap-in connection of multiple No. 1 prefabricated panels 4 on the support beam. connection, and finally lift the No. 2 prefabricated panel 5 to the top of the support beam to realize the snap connection between the No. 2 prefabricated panel 5 and the corresponding No. 1 beam group 1;

SS05 splices and assembles the required number of support beams as needed, and achieves a stable connection between the support beams and the prefabricated panels.

In the description of this specification, reference to the terms "one embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the invention. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only intended to help illustrate the invention. The preferred embodiments do not describe all details, nor do they limit the invention to the specific implementations described. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides an assembled building beam slab connection structure which characterized in that: comprises a first beam group (1), a second beam group (2) and a third beam group (3);

the first beam group (1) is formed by splicing a second beam group (2) and a third beam group (3) which are adjacent to the first beam group, and the first beam group (1) is formed by splicing the second beam groups (2) on two sides of the first beam group; the first beam group (1) and the second beam group (2) are arranged between two opposite third beam groups (3), and the first beam group (1) and the second beam group (2) are arranged in a staggered manner;

the first beam group (1), the second beam group (2) and the third beam group (3) are spliced to form a supporting beam, a first precast slab (4) and a second precast slab (5) which are supported at the top of the supporting beam are arranged on two sides of the supporting beam, and the first precast slab (4) and the second precast slab (5) are connected with the supporting beam in a clamping mode;

the first beam group (1) comprises a first T-shaped beam (11), a plurality of connecting assemblies (12) are integrally arranged in the first T-shaped beam (11), and a positioning assembly (13) is integrally arranged at the top of the first T-shaped beam (11);

the positioning assembly (13) comprises a positioning plate (131) integrated with the first T-shaped beam (11), and two positioning holes (132) are symmetrically formed in the surface of the positioning plate (131);

the surface of the positioning plate (131) is fixedly connected with a single-way internal thread steel pipe (133), and the internal thread steel pipe (133) is coaxial with a through hole (14) at the top of the first T-shaped beam (11); the outer surface of the internally threaded steel pipe (133) is fixedly provided with a plurality of reinforcing columns (134), and the positioning plate (131) is fixedly connected with the steel bars in the first T-shaped beam (11);

the first beam group (1) further comprises an anti-seismic assembly (15); the anti-seismic assembly (15) comprises a rotating column (151) penetrating through a through hole (14) and in threaded fit with a corresponding internally threaded steel pipe (133), a pressing seat (152) is fixed on the peripheral side face of the rotating column (151), and an elastic anti-seismic plate (153) tightly attached to the tops of the first prefabricated plate (4) and the second prefabricated plate (5) is arranged at the bottom of the pressing seat (152).

2. The assembled building beam plate connecting structure according to claim 1, wherein the connecting component (12) comprises a double-pass connecting steel pipe (121) arranged inside a first T-shaped beam (11), a reinforcing plate (122) is fixed on the peripheral side surface of the connecting steel pipe (121), a plurality of reinforcing steel bar reinforcing holes (123) are formed in the surface of the reinforcing plate (122), and the reinforcing steel bars inside the first T-shaped beam (11) are integrally connected with the first T-shaped beam (11) through the reinforcing steel bar reinforcing holes (123).

3. The assembled building beam plate connecting structure according to claim 2, wherein the second beam group (2) comprises a second T-shaped beam (21), a plurality of first steel columns (22) are arranged inside the second T-shaped beam (21), and steel bars inside the second T-shaped beam (21) are connected with the first steel columns (22) to realize integrated connection of the first steel columns (22) and the second T-shaped beam (21);

and the first steel column (22) on the second beam group (2) is clamped and connected with the connecting steel pipe (121) on the adjacent first beam group (1).

4. The assembled building beam plate connecting structure according to claim 3, wherein the third beam group (3) comprises a third T-shaped beam (31), a plurality of second steel columns (32) are arranged inside the third T-shaped beam (31), and the second steel columns (32) are connected with the reinforcing bars inside the third T-shaped beam (31) to realize integrated connection of the second steel columns (32) and the third T-shaped beam (31).

5. The connecting structure of the assembled building beam and slab according to claim 4, wherein a first limiting opening (41) is formed in two opposite side surfaces of the first prefabricated slab (4), a first positioning piece (42) is fixed in the first limiting opening (41), and the first positioning piece (42) is in clamping connection with a positioning hole (132) in the corresponding first beam group (1);

two opposite sides of the second prefabricated plate (5) are provided with second limiting openings (51), second locating pieces (52) are fixed inside the second limiting openings (51), and the second locating pieces (52) are connected with locating holes (132) in the corresponding first beam group (1) in a clamping mode.

6. A method of connecting a fabricated building beam-slab connection structure according to any one of claims 1 to 5, comprising the steps of:

the SS01 is characterized in that a first beam group (1) is spliced on a third beam group (3), a second beam group (2) is spliced on the first beam group (1), and the stable connection of the second beam group (2) and the first beam group (1) is realized;

the SS02 is used for splicing a second first beam group (1) on a second beam group (2) in the SS01, and then splicing the other second beam group (2) on the second first beam group (1), so that the second beam group (2) is firmly connected with the first beam group (1);

SS03 repeats steps SS01 to SS02 according to the length of the required support beam, and then splices the last beam group No. three (3) to the adjacent beam group No. one (1), thereby splicing the support beam to form a complete support beam;

after the SS04 lifts the first prefabricated plate (4) to the top of the supporting beam, the first prefabricated plate (4) is connected with the corresponding first beam group (1) in a clamping mode, the same connection mode is used for realizing the clamping connection of a plurality of first prefabricated plates (4) on the supporting beam, and finally the second prefabricated plate (5) is lifted to the top of the supporting beam, so that the clamping connection of the second prefabricated plate (5) and the corresponding first beam group (1) is realized;

the SS05 splices and assembles the required number of supporting beams according to the requirement, and realizes the stable connection of the supporting beams and the precast slabs.