Connection structure and construction method of prefabricated floor slab and prefabricated beam

Abstract

The present invention discloses a connection structure and construction method for prefabricated floor slabs and prefabricated beams, and belongs to the field of construction engineering technology. It comprises a prefabricated slab and a plurality of brackets made of disc-type scaffolding, the brackets being arranged on the floor to be constructed, a prefabricated beam being erected on the top of the bracket, the width of the prefabricated beam being smaller than the width of the bracket, and a receiving platform for receiving blocks to abut against each other is formed between both sides of the top surface of the bracket and the prefabricated beam, wherein a plurality of embedded reinforcement bars are arranged on the surface of the prefabricated slab for forming reinforced concrete after subsequent pouring of concrete to improve the strength, a plurality of steel bars are arranged along the length direction of the prefabricated slab, both ends of the steel bars protrude from both sides of the prefabricated slab, and the length of the steel bars is less than the width between adjacent brackets. Through the present invention, when installing the prefabricated slabs, the prefabricated slabs can be lifted from between adjacent brackets without interfering with the brackets and prefabricated beams, thereby facilitating the installation of the prefabricated slabs and greatly improving the efficiency of installing the prefabricated slabs.

Description

Technical Field

[0001] The invention relates to a connection structure and a construction method of an assembled floor slab and an assembled beam, and belongs to the technical field of construction engineering. Background Art

[0002] As an important construction method for prefabricated buildings, the safe, reliable, convenient and efficient connection methods between prefabricated parts, panels, columns, walls and other components directly determine the development of concrete structure assembly technology.

[0003] At present, the connection method between precast floor slabs and beams in the beam-slab connection structure of traditional prefabricated concrete structures mainly adopts the precast floor slab reinforcement structure. The reinforcement of the precast floor slabs forms anchor bars anchored in the precast beams. The safety of the concrete floor slab structure of this method can be effectively guaranteed.

[0004] However, since the steel bars at both ends of the prefabricated floor slab protrude a considerable distance from the surface of the prefabricated floor slab, when the prefabricated floor slab is hoisted, the steel bars of the prefabricated floor slab will interfere with the scaffolding and prefabricated beams, making the hoisting of the prefabricated floor slab more difficult and greatly affecting the installation efficiency.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a connection structure and construction method for prefabricated floor slabs and prefabricated beams, which solves the problem in the prior art that when the prefabricated floor slabs are hoisted, the steel bars of the prefabricated floor slabs will interfere with the scaffolding and prefabricated beams, making the hoisting of the prefabricated floor slabs more difficult and greatly affecting the installation efficiency.

[0007] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: a connection structure between prefabricated floor slabs and prefabricated beams, comprising a prefabricated slab and a number of brackets made of disc-type scaffolding, the brackets being arranged on the floor to be constructed, a prefabricated beam being erected on the top of the bracket, the width of the prefabricated beam being smaller than the width of the bracket, and receiving platforms for receiving blocks to abut against are formed between both sides of the top surface of the bracket and the prefabricated beam, wherein a number of embedded bars are arranged on the surface of the prefabricated slab, and a number of steel bars are arranged inside the prefabricated slab along the length direction, with both ends of the steel bars protruding from both sides of the prefabricated slab, and in addition, the length of the steel bars is smaller than the width between adjacent brackets.

[0008] By adopting the above technical solution, when installing prefabricated panels, the prefabricated panels can be lifted from between adjacent supports without interfering with the supports and prefabricated beams, thereby facilitating the installation of the prefabricated panels and greatly improving the efficiency of installing the prefabricated panels.

[0009] The present invention is further configured as follows: a connecting sleeve is slidably arranged on the outside of one end of the steel bar, one end of the connecting sleeve is embedded in the interior of the prefabricated panel and can slide within the prefabricated panel, a plurality of insertion holes for the connecting sleeve to be inserted are provided along the length direction on one side of the prefabricated beam, and a plurality of slots for the steel bars to be inserted are provided on the other side, and a limiting structure is provided inside the insertion hole for limiting the connection sleeve from being separated from the insertion hole.

[0010] By adopting the above technical solution, when installing the prefabricated panel, the prefabricated panel can be moved first so that the connecting sleeve can be inserted into the socket. After the limiting structure limits the connecting sleeve, the prefabricated panel can be moved in the opposite direction so that the steel bar at the other end of the prefabricated panel can be inserted into the slot, thereby realizing the connection between the prefabricated panel and the prefabricated beam, which is easy to operate.

[0011] The present invention is further configured as follows: the limiting structure includes a limiting block that slides radially on the inner top wall of the socket, a limiting groove for the sliding of the limiting block is provided on the inner wall of the socket, an elastic part is fixed between the inner top wall of the limiting groove and the limiting block, the elastic part is a compression spring, and a fixing groove for the limiting block to be snapped into is provided on the surface of the connecting sleeve, wherein an inclined surface is provided on the top of one end of the connecting sleeve extending into the socket, and a guide surface matching the inclined surface is provided on the bottom of the limiting block toward one end of the connecting sleeve.

[0012] By adopting the above technical solution, during the process of the connecting sleeve being inserted into the socket, the inclined surface 1 at one end of the connecting sleeve will first abut against the guide surface 1 at the bottom end of the limit block 1, and as the connecting sleeve continues to be inserted, under the guiding action of the guide surface 1, the limit block 1 will rise and retreat to the inside of the limit groove 1, and the elastic member 1 will be compressed and exert a downward elastic force on the limit block 1, and when the connecting sleeve is completely inserted into the socket and contacts the deepest part of the socket, the limit block 1 moves on the surface of the connecting sleeve to the position of the fixed groove 1, at this time the elastic member 1 will push the limit block 1 to move downward and be inserted into the inside of the fixed groove 1, and the limiting action of the limit block 1 on the fixed groove pair makes the connecting sleeve unable to detach from the socket outward, thereby realizing the fixing operation of the connecting sleeve.

[0013] The present invention is further configured as follows: a plurality of slides with T-shaped cross sections are detachably connected to one side of the top surface of the prefabricated board, a plurality of positioning columns are provided at the bottom of the slide, a plurality of positioning grooves for the positioning columns to be inserted into the top surface of the prefabricated board are provided, the positioning columns and the slide are integrally formed by pouring concrete, and a plurality of receiving blocks are slidably connected between adjacent slides.

[0014] By adopting the above technical solution, the slide is limited by inserting the positioning column into the positioning groove, so that the slide cannot move in the horizontal direction of the precast plate and is relatively easy to remove. After the slide is installed, the positioning column can also be manually shoveled off the slide, which is relatively convenient to operate. The receiving block is used to slide off the slide and be installed on the connecting sleeve when the precast plate moves toward the precast beam on the side away from the connecting sleeve, thereby filling the gap between the precast plate and the precast beam, and facilitating the subsequent pouring of concrete on the surface of the precast plate.

[0015] The present invention is further configured as follows: a groove for the connecting sleeve to be inserted is provided at the bottom of the receiving block, a connecting block is provided on one side of the receiving block, a plurality of connecting grooves for the connecting block to be inserted horizontally are provided on the side wall of the prefabricated beam, a limiting member for limiting the connection block from being separated from the connecting groove is provided on the inner wall of the connecting groove, and a guide groove for the connecting block to be inserted into the longitudinal sliding manner and connected to the connecting groove is also provided on the side wall of the prefabricated beam.

[0016] By adopting the above technical solution, when the connecting sleeve is fully inserted into the socket, the connecting block will also be inserted into the connecting groove under the limitation of the embedded reinforcement on the surface of the prefabricated plate. The limiting piece limits the connection block, so that when the prefabricated plate moves in the direction away from the connecting groove, the receiving block will slide from the slide and eventually slide off the slide. Since the guide groove is connected to the connecting groove, when the receiving block slides, the connecting block will be stuck in the guide groove. Under the guidance of the guide groove, the receiving block will fall vertically and eventually abut against the receiving platform, and the connecting sleeve will be stuck in the embedded groove, thereby filling the gap between the prefabricated plate and the prefabricated beam. At the same time, since the slide is detachable, after the installation of the receiving block is completed, the slide is removed from the prefabricated plate, and the slide is placed in the gap between adjacent receiving blocks, which is more convenient for subsequent pouring of concrete.

[0017] The present invention is further configured as follows: the limiting member includes a limiting block 2 that slides inside the connecting groove in a vertical direction, a limiting groove 2 for the sliding of the limiting block 2 is provided on the top wall inside the connecting groove, an elastic member 2 is fixed between the top wall inside the limiting groove 2 and the limiting block 2, the elastic member 2 is a compression spring, and a fixing groove 2 for the limiting block 2 to be snapped into is provided on the top surface of the connecting block, wherein an inclined surface 2 is provided on the top of one end of the connecting block extending into the connecting groove, and a guide surface 2 matching the inclined surface 2 is provided on the bottom of the limiting block 2 toward one end of the connecting block.

[0018] By adopting the above technical solution, during the process of the connecting block being inserted into the connecting groove, the inclined surface 2 at one end of the connecting block will first abut against the guide surface 2 at the bottom end of the limiting block 2. As the connecting block continues to be inserted, under the guiding action of the guide surface 2, the limiting block 2 will rise and retreat into the limiting groove 2, and the elastic member 2 will be compressed and apply a downward elastic force to the limiting block 2. When the connecting block is completely inserted into the connecting groove and abuts the deepest part of the connecting groove, the limiting block 2 moves on the surface of the connecting block to the position of the fixed groove 2. At this time, the elastic member 2 will push the limiting block 2 to move downward and be inserted into the fixed groove 2. The limiting action of the limiting block 2 by the fixed groove 2 makes the connecting block unable to disengage from the connecting groove outward, thereby realizing the fixing operation of the connecting block.

[0019] The present invention is further configured as follows: sliders are provided on both sides of the connecting block, and sliding grooves for the sliders to be inserted are provided on the inner walls on both sides of the guide groove.

[0020] By adopting the above technical solution, when the connecting block slides downward in the guide groove, the sliding groove limits the sliding block, so that the connecting block will not rotate, and the sliding process is more stable.

[0021] The beneficial effect of the present invention is that when installing prefabricated panels, the prefabricated panels can be lifted from between adjacent supports without interfering with the supports and prefabricated beams, thereby facilitating the installation of the prefabricated panels and greatly improving the efficiency of installing the prefabricated panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the prefabricated panel in the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 is a cross-sectional view of the bracket and prefabricated beam in the present invention;

[0026] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 A half-section view of the present invention;

[0028] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0029] In the figure: 1. Precast plate; 2. Bracket; 3. Precast beam; 4. Support platform; 5. Embedded reinforcement; 6. Rebar; 7. Connecting sleeve; 8. Socket; 9. Slot; 10. Limiting structure; 101. Limiting block 1; 102. Limiting groove 1; 103. Elastic member 1; 104. Fixing groove 1; 105. Inclined surface 1; 106. Guide surface 1; 11. Slide; 12. Positioning column; 13. Positioning groove; 14. Supporting block; 15. Embedded groove; 16. Connecting block; 17. Connecting groove; 18. Limiting member; 181. Limiting block 2; 182. Limiting groove 2; 183. Elastic member 2; 184. Fixing groove 2; 185. Inclined surface 2; 186. Guide surface 2; 19. Guide groove; 20. Slider; 21. Slide groove. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further explained below with reference to specific illustrations.

[0031] like Figure 1 As shown, the connection structure of the prefabricated floor slab and the prefabricated beam comprises a prefabricated slab 1 and a plurality of brackets 2 made of a disc-type scaffolding. The brackets 2 are arranged on the floor to be constructed. Prefabricated beams 3 are set on the top of the brackets 2. The width of the prefabricated beams 3 is smaller than that of the brackets 2. A receiving platform 4 for receiving blocks 14 to abut is formed between the top surfaces of the brackets 2 and the prefabricated beams 3 on both sides.

[0032] Among them, a number of embedded bars 5 are provided on the surface of the precast panel 1, which are used to form steel bars 6 concrete after subsequent pouring of concrete to improve the strength. A number of steel bars 6 are provided inside the precast panel 1 along the length direction, and both ends of the steel bars 6 protrude from both sides of the precast panel 1. In addition, the length of the steel bars 6 is less than the width between adjacent brackets 2, so that when the precast panel 1 is installed, the precast panel 1 can be lifted from between adjacent brackets 2 without interfering with the brackets 2 and the precast beams 3, thereby facilitating the installation of the precast panel 1 and greatly improving the efficiency of installing the precast panel 1.

[0033] like Figure 2 and Figure 3 As shown, a connecting sleeve 7 is slidably mounted on the outside of one end of the steel bar 6, and one end of the connecting sleeve 7 is embedded in the interior of the prefabricated panel 1 and can slide within the prefabricated panel 1. A plurality of insertion holes 8 for the insertion of the connecting sleeve 7 are provided on one side of the prefabricated beam 3 along the length direction, and a plurality of slots 9 for the insertion of the steel bar 6 are provided on the other side. A limiting structure 10 is provided inside the slot 8 to limit the separation of the connecting sleeve 7 from the slot 8. When installing the prefabricated panel 1, the prefabricated panel 1 can be first moved to allow the connecting sleeve 7 to be inserted into the slot 8. After the limiting structure 10 limits the position of the connecting sleeve 7, the prefabricated panel 1 can be moved in the opposite direction to allow the steel bar 6 at the other end of the prefabricated panel 1 to be inserted into the slot 9, thereby achieving the connection between the prefabricated panel 1 and the prefabricated beam 3, which is easy to operate.

[0034] like Figure 3 and Figure 5 As shown, the limiting structure 10 includes a limiting block 101 that slides radially on the inner top wall of the socket 8, and a limiting groove 102 is provided on the inner wall of the socket 8 for the limiting block 101 to slide. An elastic member 103 is fixed between the inner top wall of the limiting groove 102 and the limiting block 101, and the elastic member 103 is a compression spring. A fixing groove 104 is provided on the surface of the connecting sleeve 7 for the limiting block 101 to be snapped in, wherein an inclined surface 105 is provided on the top of one end of the connecting sleeve 7 extending into the socket 8, and a guide surface 106 matching the inclined surface 105 is provided on the bottom of the limiting block 101 toward one end of the connecting sleeve 7.

[0035] When the connecting sleeve 7 is inserted into the socket 8, the inclined surface 105 at one end of the connecting sleeve 7 will first abut against the guide surface 106 at the bottom end of the limit block 101. As the connecting sleeve 7 continues to be inserted, under the guidance of the guide surface 106, the limit block 101 will rise and retreat to the inside of the limit groove 102, and the elastic member 103 will be compressed and exert a downward elastic force on the limit block 101. When the connecting sleeve 7 is completely inserted into the socket 8 and contacts the deepest part of the socket 8, the limit block 101 moves to the position of the fixed groove 104 on the surface of the connecting sleeve 7. At this time, the elastic member 103 will push the limit block 101 to move downward and insert it into the inside of the fixed groove 104. The limit of the limit block 101 by the fixed groove 104 makes the connecting sleeve 7 unable to disengage from the socket 8 outward, thereby realizing the fixing operation of the connecting sleeve 7.

[0036] like Figure 6 As shown, a plurality of slides 11 with T-shaped cross sections are detachably connected to one side of the top surface of the precast panel 1. Specifically, a plurality of positioning columns 12 are provided at the bottom of the slide 11, and a plurality of positioning grooves 13 for the positioning columns 12 to be inserted into the top surface of the precast panel 1 are provided. The positioning columns 12 and the slide 11 are integrally formed by pouring concrete, so that the slide 11 is limited by inserting the positioning columns 12 into the positioning grooves 13, so that the slide 11 cannot move in the horizontal direction of the precast panel 1 and is relatively easy to remove. After the slide 11 is installed, the positioning columns 12 can also be manually shoveled off from the slide 11, which is relatively convenient to operate.

[0037] There are several receiving blocks 14 slidingly connected between adjacent slides 11. The receiving blocks 14 are used to slide down from the slide 11 and be installed on the connecting sleeve 7 when the precast panel 1 moves toward the precast beam 3 on the side away from the connecting sleeve 7, thereby filling the gap between the precast panel 1 and the precast beam 3, and facilitating the subsequent pouring of concrete on the surface of the precast panel 1.

[0038] Specifically, if Figure 7As shown, a groove 15 for the connecting sleeve 7 to be snapped into is provided at the bottom of the receiving block 14, a connecting block 16 is provided on one side of the receiving block 14, and a plurality of connecting grooves 17 for the connecting block 16 to be snapped into laterally are provided on the side wall of the precast beam 3. A limiting member 18 for limiting the connection block 16 from being separated from the connection groove 17 is provided on the inner wall of the connection groove 17. A guide groove 19 for the connecting block 16 to be snapped into longitudinally and connected to the connection groove 17 is also provided on the side wall of the precast beam 3.

[0039] When the connecting sleeve 7 is fully inserted into the socket 8, the connecting block 16 is also inserted into the connecting groove 17 under the limit of the embedded reinforcement 5 on the surface of the prefabricated plate 1. The limiting member 18 limits the connection block 16, so that when the prefabricated plate 1 moves away from the connecting groove 17, the receiving block 14 slides from the slide 11 and finally slides off the slide 11. Since the guide groove 19 is connected to the connecting groove 17, when the receiving block 14 slides, the connecting block 16 will It is stuck in the guide groove 19, and under the guidance of the guide groove 19, the receiving block 14 will fall vertically and finally abut on the receiving platform 4, and the connecting sleeve 7 will be stuck in the embedded groove 15, thereby filling the gap between the precast panel 1 and the precast beam 3. At the same time, since the slide 11 is detachable, after the receiving block 14 is installed, the slide 11 is removed from the precast panel 1, and the slide 11 is placed in the gap between adjacent receiving blocks 14, which is more convenient for subsequent concrete pouring.

[0040] like Figure 3 and Figure 5 As shown, the limiting member 18 includes a limiting block 181 that slides in the vertical direction inside the connecting groove 17, and a limiting groove 182 for the sliding of the limiting block 181 is provided on the inner top wall of the connecting groove 17. An elastic member 183 is fixed between the inner top wall of the limiting groove 182 and the limiting block 181. The elastic member 183 is a compression spring, and a fixing groove 184 for the limiting block 181 to be snapped into is provided on the top surface of the connecting block 16. The top of one end of the connecting block 16 extending into the connecting groove 17 is provided with an inclined surface 185, and the bottom of the limiting block 181 facing one end of the connecting block 16 is provided with a guide surface 186 matching the inclined surface 185.

[0041] When the connecting block 16 is inserted into the connecting groove 17, the inclined surface 185 at one end of the connecting block 16 will first abut against the guide surface 186 at the bottom end of the limit block 181. As the connecting block 16 continues to be inserted, under the guidance of the guide surface 186, the limit block 181 will rise and retreat to the inside of the limit groove 182, and the elastic member 183 will be compressed and exert a downward elastic force on the limit block 181. When the connecting block 16 is completely inserted into the connecting groove 17 and contacts the deepest part of the connecting groove 17, the limit block 181 moves to the position of the fixed groove 184 on the surface of the connecting block 16. At this time, the elastic member 183 will push the limit block 181 to move downward and insert it into the fixed groove 184. The limit of the limit block 181 by the fixed groove 184 makes the connecting block 16 unable to disengage from the connecting groove 17 outward, thereby realizing the fixing operation of the connecting block 16.

[0042] In addition, if Figure 7 As shown, sliders 20 are provided on both sides of the connecting block 16, and sliding grooves 21 for the sliders 20 to be inserted are provided on the inner walls of both sides of the guide groove 19, so that when the connecting block 16 slides downward in the guide groove 19, the sliding grooves 21 limit the sliders 20, so that the connecting block 16 will not rotate, and the sliding process is more stable.

[0043] The construction method of the prefabricated floor slab and the prefabricated beam is implemented based on the connection structure of the prefabricated floor slab and the prefabricated beam as described above, and includes the following steps:

[0044] Step 1: Setting up the support 2, which is a buckle-type scaffolding and is set up on the floor;

[0045] Step 2: Install the prefabricated beam 3. Install the prefabricated beam 3 to the top of the bracket 2 by a crane.

[0046] Step 3: Install the prefabricated panel 1. Use a crane to lift the prefabricated panel 1 on the floor to the top of the prefabricated beam 3. Then move it horizontally to insert the connecting sleeve 7 into the socket 8, and insert the connecting block 16 into the connecting groove 17. Then use the crane to move the prefabricated panel 1 toward the prefabricated beam 3 on the other side, so that the steel bar 6 at the other end of the prefabricated panel 1 is inserted into the slot 9. The receiving block 14 is separated from the slide 11 and falls onto the receiving platform 4. Finally, the slide 11 is removed from the prefabricated panel 1 and placed in the gap between adjacent receiving blocks 14. Manually knock out the positioning column 12 at the bottom of the slide 11.

[0047] Step 4: Concrete pouring, starting from the elevation above the precast slab 1, then setting up formwork around the precast slab 1 and precast beam 3, and pouring concrete from the formwork to the elevation;

[0048] Step 5: The concrete solidifies, completing the connection between the precast slab 1 and the precast beam 3.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure of an assembled floor slab and an assembled beam, comprising a prefabricated slab (1) and a plurality of brackets (2), wherein the brackets (2) are provided with prefabricated beams (3), characterized in that: A plurality of steel bars (6) are provided in the prefabricated plate (1), the length of the steel bars (6) is less than the width between adjacent brackets (2), both ends of the steel bars (6) protrude from both sides of the prefabricated plate (1), a connecting sleeve (7) is slidably provided on the outer side of one end of the steel bars (6), a plurality of insertion holes (8) for the connecting sleeves (7) to be inserted into one side of the prefabricated beam (3), a plurality of slots (9) for the steel bars (6) to be inserted into the other side of the prefabricated beam (3), a limiting structure (10) for limiting the connection sleeve (7) from being separated from the insertion hole (8) is provided inside the insertion hole (8); A plurality of slides (11) are provided on one side of the top surface of the precast plate (1), and a plurality of receiving blocks (14) are slidably connected between adjacent slides (11). A recess (15) for snapping the connecting sleeve (7) is provided at the bottom of the receiving block (14), and a connecting block (16) is provided on one side of the receiving block (14). A plurality of connecting grooves (17) for snapping the connecting blocks (16) are provided on the side wall of the precast beam (3), and a limiting member (18) for limiting the connection block (16) from being separated from the connection groove (17) is provided on the inner wall of the connection groove (17). A guide groove (19) for snapping the connecting block (16) and communicating with the connection groove (17) is provided on the side wall of the precast beam (3); The cross section of the slide (11) is T-shaped and is detachably connected to the top surface of the prefabricated plate (1). A plurality of positioning columns (12) are provided at the bottom of the slide (11), and a plurality of positioning grooves (13) for the positioning columns (12) to be engaged are provided on the top surface of the prefabricated plate (1).

2. The connection structure of the prefabricated floor slab and the prefabricated beam according to claim 1, characterized in that: The limiting structure (10) includes a limiting block (101) that slides radially on the inner top wall of the socket (8), a limiting groove (102) for the limiting block (101) to slide is provided on the inner wall of the socket (8), an elastic member (103) is fixed between the inner top wall of the limiting groove (102) and the limiting block (101), and a fixing groove (104) for the limiting block (101) to be snapped into is provided on the surface of the connecting sleeve (7).

3. The connection structure of the prefabricated floor slab and the prefabricated beam according to claim 1, characterized in that: The limiting member (18) includes a second limiting block (181) that slides in the vertical direction inside the connecting groove (17), a second limiting groove (182) for the second limiting block (181) to slide is provided on the inner top wall of the connecting groove (17), an elastic member (183) is fixed between the inner top wall of the second limiting groove (182) and the second limiting block (181), and a second fixing groove (184) for the second limiting block (181) to be snapped into is provided on the top surface of the connecting block (16).

4. The connection structure of the prefabricated floor slab and the prefabricated beam according to claim 1, characterized in that: Slide blocks (20) are provided on both sides of the connecting block (16), and sliding grooves (21) for the slide blocks (20) to be inserted are provided on the inner walls on both sides of the guide groove (19).

5. The connection structure of the prefabricated floor slab and the prefabricated beam according to claim 1, characterized in that: The width of the prefabricated beam (3) is smaller than the width of the bracket (2), and receiving platforms (4) for receiving blocks (14) to abut against are formed between both sides of the top surface of the bracket (2) and the prefabricated beam (3).

6. A construction method of prefabricated floor slabs and prefabricated beams, based on the connection structure of prefabricated floor slabs and prefabricated beams according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Setting up the support (2), the support (2) adopts a disc-type scaffolding and is set up on the floor; Step 2: Installing the prefabricated beam (3): installing the prefabricated beam (3) to the top of the bracket (2) via a crane; Step 3: Install the prefabricated panel (1). Use a crane to lift the prefabricated panel (1) on the floor to the top of the prefabricated beam (3). Then, insert the connecting sleeve (7) into the socket (8), and insert the connecting block (16) into the connecting groove (17). Then, use the crane to move the prefabricated panel (1) toward the prefabricated beam (3) on the other side, so that the steel bar (6) at the other end of the prefabricated panel (1) is inserted into the slot (9). The receiving block (14) is separated from the slide (11) and falls onto the receiving platform (4). Finally, the slide (11) is removed from the prefabricated panel (1) and placed in the gap between adjacent receiving blocks (14). Step 4: Concrete pouring, starting from the elevation above the precast slab (1), then setting up formwork around the precast slab (1) and the precast beam (3), and pouring concrete from the formwork to the elevation; Step 5: The concrete solidifies, completing the connection between the precast slab (1) and the precast beam (3).

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