An assembled beam-slab connecting structure, construction equipment and construction method

Abstract

The present application relates to the technical field of beam-slab connection, and particularly relates to a fabricated beam-slab connection structure and a construction method thereof, which adopts the following technical scheme: a prefabricated beam is provided with overlapping grooves on both sides of the upper end in the width direction; a prefabricated slab is arranged on both sides of the prefabricated beam in the width direction and is overlapped at the end in the overlapping grooves; and a plurality of pull members are distributed along the length direction of the prefabricated beam and used for connecting the prefabricated slabs on both sides of the prefabricated beam. Compared with the connection scheme of the composite beam and the composite slab in the background art, the dry connection is adopted, and thus the construction time is saved and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of beam-slab connection technology, and in particular to a prefabricated beam-slab connection structure and its construction method. Background Technology

[0002] Currently, prefabricated beam-slab structures generally use composite beams and composite slabs.

[0003] like Figure 1 As shown, the composite beam 91 includes a beam body 911, with pre-embedded reinforcing bars 912 partially embedded in the upper part of the beam body 911. The composite slab 92 includes a slab body 921, with pre-embedded reinforcing bars 922 partially embedded in the upper part of the slab body 921. During construction, concrete is poured onto the upper surfaces of the beam body 911 and the slab body 921, ensuring that the concrete completely encloses the pre-embedded reinforcing bars 922 and the beam reinforcing bars 912.

[0004] However, the long curing time required for concrete is not conducive to improving construction efficiency. Summary of the Invention

[0005] To improve the construction efficiency of prefabricated beams and slabs, this invention provides a prefabricated beam and slab connection structure and its construction method.

[0006] The first technical objective of this invention is to provide a prefabricated beam-slab connection structure, which adopts the following technical solution: including

[0007] The precast beam has lap grooves on both sides of the upper end in the width direction;

[0008] Precast slabs are placed on both sides of the precast beam in the width direction, and their ends overlap in the lap groove;

[0009] Tie members, multiple of which are distributed along the length of the precast beam, are used to connect the precast slabs on both sides of the precast beam.

[0010] By adopting the above technical solution, the pre-fixation of the precast beam and precast slab can be completed by overlapping one end of the precast slab with the lap groove on the precast beam. Then, the precast slabs located on both sides of the precast beam are fixedly connected by tie rods to complete the fixed connection between the precast beam and precast slab. Compared with the composite beam and composite slab connection scheme in the background technology, this solution adopts a dry connection, which does not require waiting for the concrete to solidify, thus saving construction time and speeding up construction efficiency.

[0011] Optionally: A metal embedded part is provided at one end of the precast slab near the precast beam. The metal embedded part is fixedly connected to the steel bars in the precast slab. Both ends of the tie member are connected to the metal embedded part by fasteners or welded.

[0012] By adopting the above technical solution, the precast slab and precast beam can be fixedly connected by welding the tie member to the metal embedded part or by using fasteners.

[0013] Optionally: A connecting groove is provided on the upper side of the precast slab near one end of the precast beam, the upper surface of the precast beam is flush with the bottom of the connecting groove, and the tie member is located in the connecting groove.

[0014] By adopting the above technical solution, the tie member does not protrude from the connection groove after construction. By filling the connection groove, the upper surface of the connection between the precast beam and the precast slab can be kept flush.

[0015] Optionally: A positioning groove is provided on the end face of the precast slab near the end of the precast beam, and a positioning block corresponding to the positioning groove is provided on the side wall of the lap groove of the precast beam, and the positioning block abuts in the positioning groove.

[0016] By adopting the above technical solution, the positioning groove and positioning block can accurately connect the precast beam and the precast slab. In addition, it can limit the relative displacement of the precast beam and the precast slab along the length of the precast beam, and improve the shear bearing capacity and shear stiffness of the beam-slab connection section along the beam length.

[0017] Optionally: The side of the precast beam is provided with a reinforcing steel plate, and the lower side of the precast slab near one end of the precast beam is provided with an angle steel. Part of the angle steel is fixed inside the precast slab, and the other part is welded to or fastened to the reinforcing steel plate.

[0018] By adopting the above technical solution, the steel plate and angle steel are fixedly connected, thereby further strengthening the connection strength between the precast beam and the precast slab.

[0019] Optional: Each tie member includes two tie plates, one end of each tie plate is fixedly connected to the precast slab, and the other end is subjected to a pre-tensioning force toward the precast beam. After tensioning, the tensioned end is fixed to the upper surface of the precast beam.

[0020] By adopting the above technical solution, because the tie member applies a pre-tension force toward the precast beam, a pre-tension stress is generated in the tie plate. Under the action of the pre-stress in the tie plate, the precast plate tends to move closer to the precast beam, thereby making the precast beam and the precast plate more firmly bonded.

[0021] Optional: The same tie plate includes a first tie plate and a second tie plate. The first tie plate has a groove at one end that is fixed to the precast beam, and the second tie plate has a block at one end that is fixed to the precast beam. The block is located in the groove.

[0022] The card slot has a first limiting groove on both sides and the upper surface of the first tie plate, and the card block has a second limiting groove on its upper surface. The first limiting groove and the second limiting groove are connected to each other after the tie plate is stretched and elongated.

[0023] A limiting rod extending along the length of the precast beam is fixed to the upper surface of the beam, and the limiting rod is engaged in the first limiting groove and the second limiting groove.

[0024] By adopting the above technical solution, the limiting rod is placed in the first limiting groove and the second limiting groove, thereby restricting the retraction of the first tie plate and the second tie plate, so that the prestress is transferred to the precast slab through the tie member and the limiting rod, and finally the prestress is applied to the tension between the precast slab and the precast beam.

[0025] In addition, since the limiting rod is set along the length of the precast beam, the limiting rod can also serve as a reinforcing member to enhance the strength of the precast beam.

[0026] Optional: Bolts are provided at the limiting rods between two adjacent tie members to fix the tie members to the precast beam.

[0027] The second technical objective of this invention is to provide a construction device for a prefabricated beam-slab connection structure, comprising a main body,

[0028] Tensioning assembly, used to drive tensioning of tie plates;

[0029] A pressure bar assembly is used to press the limiting bar into the first limiting groove and the second limiting groove;

[0030] When the tensioning assembly pulls the first tie plate and the second tie plate toward each other to connect the first limiting groove and the second limiting groove, the pressure rod assembly presses the limiting rod into the first limiting groove and the second limiting groove.

[0031] By adopting the above technical solution, the tensioning plate is tensioned by using the tensioning component, and the limiting rod is installed into the first limiting groove and the second limiting groove, which can speed up the construction efficiency.

[0032] The third technical objective of this invention is to provide a construction method for a prefabricated beam-slab connection structure.

[0033] Optional: Includes the following steps:

[0034] Step 1: Hoist the precast slab so that the end of the precast slab abuts in the lap groove;

[0035] Step 2: Install tie rods sequentially along the length of the precast beam;

[0036] Step 3: Fix or weld one end of the tie plate to the metal embedded bolt;

[0037] Step 4: Drive the tensioning assembly of the construction equipment to tension the tie plates in the same tie member in opposite directions;

[0038] Step 5: After the tensioning assembly tensions the first tie plate and the second tie plate toward each other until the first limiting groove and the second limiting groove are connected, the pressure rod assembly presses the limiting rod into the first limiting groove and the second limiting groove.

[0039] Step 6: Fix the limiting rod to the precast beam.

[0040] By adopting the above technical solution, the tie plate can be tensioned quickly, and the limiting rod can be engaged in the first limiting groove and the second limiting groove, thereby completing the construction quickly.

[0041] In summary, the present invention has the following beneficial effects:

[0042] 1. Compared with the composite beam and composite slab connection scheme in the background technology, this scheme adopts a dry connection, which does not require waiting for the concrete to solidify, thus saving construction time and speeding up construction efficiency;

[0043] 2. The limiting rod is placed in the first limiting groove and the second limiting groove, thereby restricting the retraction of the first tie plate and the second tie plate, so that the prestress is transferred to the precast slab through the tie member and the limiting rod, and finally the prestress is applied to the tension between the precast slab and the precast beam;

[0044] 3. Using construction equipment, the tie plate can be tensioned quickly, and the limiting rod can be engaged in the first limiting groove and the second limiting groove, thereby completing the construction quickly. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure in the background art of the present invention.

[0046] Figure 2 This is a schematic diagram of the overall structure of one embodiment of the present invention.

[0047] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at point AA.

[0048] Figure 4 This is a schematic diagram illustrating the structure of the connection end face between the precast beam and the precast slab for this invention.

[0049] Figure 5 This is a schematic diagram of the overall structure of another embodiment of the present invention.

[0050] Figure 6 This is a schematic diagram of the structure of the first tie plate, the second tie plate, and the limiting rod of the present invention.

[0051] Figure 7This is a schematic diagram of the overall structure of the construction equipment for the prefabricated beam-slab connection structure in this invention.

[0052] Figure 8 This is a structural schematic diagram showing the bottom view of the construction equipment in this invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Precast beam; 11. Lap groove; 12. Reinforcing steel plate; 13. Connecting steel plate; 14. Positioning block; 2. Precast slab; 21. Connecting groove; 211. Fixing part; 212. Filling part; 22. Metal embedded part; 23. Upper layer reinforcement; 24. Lower layer reinforcement; 25. Angle steel; 26. Positioning groove; 3. Tie member; 31. First tie plate; 311. Slot; 312. First limiting groove; 32. Second tie plate; 321. Slot; 322. Second limiting groove; 33. Tensioning hole; 34. Reduction groove; 4. Limiting rod; 5. Threaded sleeve; 6. Body; 61. Lifting lug; 7. Tensioning assembly; 71. Tensioning hydraulic cylinder; 72. Tensioning elbow; 8. Pressure bar assembly; 81. Pressure bar hydraulic cylinder; 82. Magnetic block; 83. Butt joint groove;

[0055] 91. Composite beam; 911. Beam body; 912. Reinforcing bars for beam; 92. Composite slab; 921. Slab body; 922. Reinforcing bars for slab;

[0056] 10. Direction of the retraction stress generated by the preload. Detailed Implementation

[0057] The following is in conjunction with the appendix Figure 2-8 The present invention will be described in further detail below.

[0058] like Figure 2 As shown, this invention discloses a prefabricated beam-slab connection structure, including a prefabricated beam 1, a prefabricated slab 2, and tie members 3. This invention can quickly achieve a fixed connection between prefabricated beams and slabs by connecting the prefabricated slabs 2 located on both sides of the prefabricated beam 1 using the tie members 3.

[0059] like Figure 3 , 4 As shown, lap grooves 11 are formed on both sides of the upper end of the precast beam 1 in the width direction. The precast slab 2 is installed on both sides of the precast beam 1 in the width direction. Specifically, the ends of the precast slab 2 overlap in the lap grooves 11. During construction, placing one end of the hoisted precast slab 2 in the lap grooves 11 can achieve the initial connection between the precast slab 2 and the precast beam 1.

[0060] A connecting groove 21 is provided on the upper side of the precast slab 2 near the end of the precast beam 1. The connecting groove 21 includes a filling part 212 and a fixing part 211. The filling part 212 is located at the edge of the precast slab 2 near the end of the precast beam 1 and extends in a direction parallel to the length of the precast beam 1. The fixing part 211 communicates with the filling part 212 and extends in a direction away from the precast beam 1. Several fixing parts 211 are distributed along a direction parallel to the length of the precast beam 1, and the bottom of the groove of the fixing part 211 is flush with the bottom of the groove of the filling part 212. A tie member 3 is provided in the connecting groove 21, and its two ends are fixedly connected to the precast slab 2 in the fixing part 211. After the construction and fixing are completed, the tie member 3 does not protrude from the connecting groove 21. By filling the connecting groove 21, the upper surface of the connection between the precast beam 1 and the precast slab 2 can be kept flush.

[0061] A plate-shaped metal embedded part 22 is provided at one end of the precast slab 2 near the precast beam 1. The metal embedded part 22 extends in a direction parallel to the length of the precast beam 1. The metal embedded part 22 is located below the fixing part 211, and the upper surface of the metal embedded part 22 is the bottom of the groove of the fixing part 211.

[0062] like Figure 3 , 4 As shown, upper-layer reinforcing bars 23, perpendicular to the precast beam 1, are provided within the precast slab 2. Several upper-layer reinforcing bars 23 are distributed along the length of the precast beam 1. The upper-layer reinforcing bars 23 are positioned higher than the metal embedded part 22, and the ends of the upper-layer reinforcing bars 23 near the precast beam 1 extend beyond the metal embedded part 22 in the direction of the precast beam 1 before bending downwards and abutting against the metal embedded part 22. In this manner, the metal embedded part 22 is securely fixed to the precast slab 2.

[0063] The tie member 3 is a steel plate, and both ends of the tie member 3 are fixedly connected to the metal embedded part 22 in the fixing part 211 by bolts or welding. If the tie member 3 needs to be welded to the metal embedded part 22, the size of the tie member 3 needs to be smaller than the size of the fixing part 211, so as to reserve operating space between the side of the fixing part 211 and the tie plate for welding operation.

[0064] Reinforcing steel plates 12 are fixed to both sides of the precast beam 1 along its width, and the reinforcing steel plates 12 are flush with the side surfaces of the precast beam 1. Connecting steel plates 13 are fixed inside the precast beam 1, and the connecting steel plates 13 are arranged along the width direction of the precast beam 1, and their two ends are welded and fixedly connected to the reinforcing steel plates 12. An angle steel 25 is provided on the lower side of the precast slab 2 near one end of the precast beam 1, and the angle steel 25 is arranged in the same direction as the metal embedded part 22. Part of the angle steel 25 is fixed inside the precast slab 2 and welded and fixed to the lower layer of reinforcing steel 24 inside the precast slab 2, and the other part extends out from the lower surface of the precast slab 2 and is welded or fastened to the reinforcing steel plates 12.

[0065] Compared to the prior art which requires cast-in-place concrete to connect the composite slab and composite beam, the above solution uses tie rods 3 to quickly fix the precast beam 1 and precast slab 2, improving the construction efficiency of connecting and fixing prefabricated beams and slabs.

[0066] like Figure 4 As shown, positioning grooves 26 are sequentially formed on the end face of the precast slab 2 near the precast beam 1, and positioning blocks 14 corresponding to the positioning grooves 26 are formed on the side wall of the lap groove 11. The positioning blocks 14 abut against the positioning grooves 26. The positioning grooves 26 and positioning blocks 14 enable accurate connection between the precast beam 1 and the precast slab 2. In addition, the relative horizontal displacement of the precast beam 1 and the precast slab 2 along the length of the precast beam 1 can be restricted, thereby improving the shear bearing capacity and shear stiffness of the beam-slab connection section along the beam length.

[0067] like Figure 5 , 6 As shown, in another embodiment, each tie member 3 includes two tie plates, a first tie plate 31 and a second tie plate 32, arranged in the same direction. One end of each first tie plate 31 and second tie plate 32 is bolted through and screwed onto the metal embedded part 22, thereby fixing it to the precast slab 2.

[0068] Both the first tie plate 31 and the second tie plate 32 are provided with waist-shaped tension holes 33 at their respective ends that are close to each other. Both the first tie plate 31 and the second tie plate 32 are provided with cutting grooves 34 on both sides of the middle part, forming a tie plate that is wide at both ends and narrow in the middle. The specific dimensions of the narrower cross section in the middle are determined according to the tensile load required by the tie plate and the elongation required for tensioning.

[0069] During the installation of the tie plate 3, one end of the first tie plate 31 and the second tie plate 32 are first fixedly connected to the metal embedded part 22 using bolts. Then, the tensioning equipment is connected through the tensioning hole 33 to tension the first tie plate 31 and the second tie plate 32 towards each other, causing the tie plates to undergo tensile deformation and generate pre-tension stress. The direction 10 of the in-plate retraction stress generated by the pre-tension force is from both ends of the tie plate towards the middle. After tensioning, the tensioning ends of the first tie plate 31 and the second tie plate 32 are fixed to the upper surface of the precast beam 1, thereby generating a retraction force after tensioning. Since one end of the first tie plate 31 and the second tie plate 32 is fixed to the precast beam 1 and the other end is fixed to the precast slab 2, under the action of the retraction stress of the tie plate, the precast slab 2 tends to move closer to the precast beam 1, thus making the precast beam 1 and the precast slab 2 more firmly connected.

[0070] Furthermore, a slot 311 is formed at the end of the first tie plate 31 that is fixed to the precast beam 1, and a block 321 is formed at the end of the second tie plate 32 that is fixed to the precast beam 1. The block 321 is located in the slot 311. A second limiting groove 322 is provided on the upper surface of the block 321, and a first limiting groove 312 is formed on the upper surface of the first tie plate 31 on both sides of the slot 311. The first limiting groove 312 and the second limiting groove 322 are connected to each other after being stretched. In addition, a limiting rod 4 extending along its length is fixed on the upper surface of the precast beam 1. The limiting rod 4 is engaged in the first limiting groove 312 and the second limiting groove 322.

[0071] By adopting the above technical solution, the limiting rod 4 is placed in the first limiting groove 312 and the second limiting groove 322, thereby restricting the retraction of the first tie plate 31 and the second tie plate 32 after tensioning, so that the prestress is transferred to the precast slab 2 through the tie member 3 and the limiting rod 4, and finally the prestress is applied to the tension between the precast slab 2 and the precast beam 1.

[0072] Furthermore, the limiting rod 4 has several through holes distributed along its length direction. A threaded sleeve 5 corresponding to the through holes is pre-embedded on the upper end face of the precast beam 1. The threaded sleeve 5 is distributed between two adjacent tie members 3. By passing the bolt through the through holes and screwing it into the threaded sleeve 5, the limiting rod 4 is fixed to the precast beam 1.

[0073] In addition, since the limiting rod 4 is set along the length of the precast beam 1, it can also serve as a reinforcing member to enhance the strength of the precast beam 1 after it is fixed on the precast beam 1.

[0074] like Figure 7 , 8 As shown, this invention discloses a construction device for a prefabricated beam-slab connection structure, including a body 6, a tensioning assembly 7 for tensioning the tie plate, and a pressure rod assembly 8 for pressing the limiting rod 4 into the first limiting groove 312 and the second limiting groove 322.

[0075] The main body 6 is a box-shaped structure in the shape of a cuboid. The four corners of the upper surface of the main body 6 are fixed with lifting lugs 61 for connecting lifting equipment. The tensioning assembly 7 and the pressure rod assembly 8 are both located at the lower end of the main body 6.

[0076] The number of tensioning components 7 corresponds to the number of tie members 3, and they are distributed along the length of the body 6. Each tensioning component 7 unit includes two tensioning hydraulic cylinders 71 fixed on the lower end face of the body 6, and the hydraulic pump for driving the tensioning hydraulic cylinders 71 is located inside the body 6. The piston rods of the two tensioning hydraulic cylinders 71 are arranged in opposite directions and coaxially, and the ends of the piston rods are fixed with downwardly bent tensioning elbows 72. Tensioning holes 3 are provided at the end of the tie plate away from the end connected to the precast slab 2, and the tensioning elbows 72 are used to extend into the tensioning holes 3.

[0077] The pressure bar assembly 8 includes several pressure bar hydraulic cylinders 81, which are installed between the tensioning assemblies 7 and distributed along the length of the body 6. The piston rods of the pressure bar hydraulic cylinders 81 are positioned downwards from the body 6, that is, the axial direction of the piston rods of the pressure bar hydraulic cylinders 81 is perpendicular to the axial direction of the tensioning hydraulic cylinders 71, and their ends are connected to a magnetic block 82 for attracting the limiting rod 4. Specifically, one end of the magnetic block 82 is connected to the piston rod of the pressure bar hydraulic cylinder 81, and the other end is provided with a mating groove 83, the opening direction of which is the length direction of the body 6. The mating groove 83 is used to accommodate the limiting rod 4, and by controlling the movement of the piston rod of the telescopic pressure bar hydraulic cylinder 81, the limiting rod 4 can be moved closer to or away from the body 6.

[0078] like Figure 2-8 As shown, this invention discloses a construction method for a prefabricated beam-slab connection structure. In one embodiment, if the tie member 3 does not require tensioning, the method includes the following steps:

[0079] Step 1: Hoist the precast slab 2 so that the end of the precast slab 2 abuts in the overlap groove 11, and the positioning block 14 is placed in the positioning groove 26;

[0080] Step 2: Install tie members 3 sequentially along the length of the precast beam 1;

[0081] Step 3: Fix the two ends of the tie member 3 to the metal embedded part 22 with bolts or welds;

[0082] Step 4: Weld or bolt the angle steel 25 to the reinforcing steel plate 11.

[0083] In another embodiment, if the tie member 3 needs to be tensioned, the following steps are included:

[0084] Step 1: Hoist the precast slab 2 so that the end of the precast slab 2 abuts in the overlap groove 11, and the positioning block 14 is placed in the positioning groove 26;

[0085] Step 2: Install tie members 3 sequentially along the length of the precast beam 1;

[0086] Step 3: Fix one end of the tie plate to the metal embedded part 22 with a bolt. At this time, there is still a distance between the tie plates in the same tie part, and the first limiting groove 312 and the second limiting groove 322 are in a misaligned position that is not connected.

[0087] Step 4: Tensioning operation of the tensioning plate. The tensioning plate is stretched and elongated, so that the first limiting groove 312 and the second limiting groove 322 are connected accordingly.

[0088] S41: Using the lifting lug 61 of the lifting equipment, the body 6 of the construction equipment connected to the limit rod 4 is moved to the top of the precast beam 1, so that a tensioning assembly 7 corresponds to a tie member 3;

[0089] S42: Lower the body 6 so that the tensioning elbow 72 enters the corresponding tensioning hole 33. At this time, there is still a certain gap between the limiting rod 4 in the docking groove 83 and the tie member 3 in the vertical direction.

[0090] S43: Drive the piston rod of the tensioning hydraulic cylinder 71 to retract, thereby tensioning the tie plates in the same tie member 3 in opposite directions, and then causing the locking block 321 to enter the locking groove 311 so that the first limiting groove 312 and the second limiting groove 322 are connected.

[0091] Step 5: Press in the limit rod 4.

[0092] S51: The piston rod of the drive rod assembly 8 extends to press the limiting rod 4 into the first limiting groove 312 and the second limiting groove 322;

[0093] S52: The extension of the piston rod of the tensioning hydraulic cylinder 71 causes the tensioning elbow 72 to no longer abut against the inner wall of the tensioning hole 33, thereby causing the tensioning plate to retract. The limiting rod 4 is clamped by the misalignment of the first limiting groove 312 and the second limiting groove 322, thereby transferring the stress of the tensioning plate retraction to the precast slab 2 through the tie member 3 and the limiting rod 4, and finally applying the prestress to the tension between the precast slab 2 and the precast beam 1;

[0094] S53: Lift the main body 6 away from the tie member 3;

[0095] Step 6: By screwing the bolt through the through hole into the threaded sleeve 5, the limiting rod 4 is fixed to the precast beam 1.

[0096] In summary, by using construction equipment, the tie plate can be tensioned quickly, and the limiting rod 4 can be engaged in the first limiting groove 312 and the second limiting groove 322, thereby completing the construction quickly.

[0097] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

[0098] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0099] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated beam-slab connection structure, characterized in that: include The precast beam (1) has lap grooves (11) on both sides of the upper end in the width direction; Precast slabs (2) are set on both sides of the width direction of the precast beam (1) and their ends overlap in the lap groove (11); Tie members (3) are distributed in multiple pairs along the length of the precast beam (1) and are used to connect the precast slabs (2) on both sides of the precast beam (1); The precast slab (2) is provided with a metal embedded part (22) at one end near the precast beam (1). The metal embedded part (22) is fixedly connected to the steel bars in the precast slab (2). The two ends of the tie member (3) are connected to the metal embedded part (22) by fasteners or welding. The precast slab (2) has a positioning groove (26) on the end face near the precast beam (1), and a positioning block (14) corresponding to the positioning groove (26) is provided on the side wall of the lap groove (11), and the positioning block (14) abuts in the positioning groove (26). The side of the precast beam (1) is provided with a reinforcing steel plate (12), and the lower side of the precast plate (2) near the end of the precast beam (1) is provided with an angle steel (25). Part of the angle steel (25) is fixed inside the precast plate (2), and the other part is welded to the reinforcing steel plate (12) or connected and fixed with fasteners. The same tie plate (3) includes a first tie plate (31) and a second tie plate (32). One end of each tie plate is fixedly connected to the metal embedded part (22) in the precast slab (2), and the other end is subjected to a pre-tensioning force toward the precast beam (1). After the tie plate is tensioned, its tensioning end is fixed to the upper surface of the precast beam (1). The first tie plate (31) is provided with a slot (311) at one end fixed to the precast beam (1), and the second tie plate (32) is provided with a block (321) at one end fixed to the precast beam (1). The block (321) is located in the slot (311). The card slot (311) is provided with a first limiting groove (312) on both sides and the upper surface of the first tie plate (31), and the card block (321) is provided with a second limiting groove (322) on the upper surface. The first limiting groove (312) and the second limiting groove (322) are connected to each other after the tie plate is stretched. The upper surface of the precast beam (1) is fixed with a limiting rod (4) extending along its length, and the limiting rod (4) is engaged in the first limiting groove (312) and the second limiting groove (322); Bolts are provided at the limiting rod (4) between two adjacent tie members (3) to fix the tie member (3) to the precast beam (1).

2. The prefabricated beam-slab connection structure according to claim 1, characterized in that: The precast slab (2) has a connecting groove (21) on the upper side near the precast beam (1). The upper surface of the precast beam (1) is flush with the bottom of the connecting groove (21). The tie member (3) is located in the connecting groove (21).

3. Equipment used for constructing the prefabricated beam-slab connection structure as described in claim 1, characterized in that: Including the main body (6), Tensioning assembly (7) is used to drive tensioning of tie plates (3-1) and (3-2). The pressure rod assembly (8) is used to press the limiting rod (4) into the first limiting groove (312) and the second limiting groove (322); When the tensioning assembly (7) tensions the first tie plate (31) and the second tie plate (32) towards each other to the corresponding connection of the first limiting groove (312) and the second limiting groove (322), the pressure rod assembly (8) presses the limiting rod (4) into the first limiting groove (312) and the second limiting groove (322).

4. The construction method implemented using the construction equipment for a prefabricated beam-slab connection structure as described in claim 3, characterized in that: The steps include the following: Step 1: Hoist the precast slab (2) so that the end of the precast slab (2) abuts in the lap groove (11); Step 2: Install tie members (3) sequentially along the length of the precast beam (1); Step 3: Fix one end of the tie plate to the metal embedded part (22) in the precast slab (2); Step 4: The tensioning assembly (7) of the driving construction equipment tensions the tie plates in the same tie member (3) in opposite directions; Step 5: When the tensioning assembly (7) tensions the first tie plate (31) and the second tie plate (32) towards each other until the first limiting groove (312) and the second limiting groove (322) are connected, the pressure rod assembly (8) presses the limiting rod (4) into the first limiting groove (312) and the second limiting groove (322); Step 6: Fix the limiting rod (4) to the precast beam (1).

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