An assembled prefabricated bridge deck and an assembling method thereof

Abstract

The application discloses an assembled prefabricated bridge deck, which comprises a main beam frame and a plurality of groups of prefabricated plates, the prefabricated plates are fixedly installed on the outer surface of the upper end of the main beam frame, the number of the main beam frames is two, main cross beams are fixedly installed between the two ends of the two main beam frames, a plurality of groups of auxiliary cross beams are spliced and installed between the two main beam frames, the plurality of groups of auxiliary cross beams are arranged side by side, a plurality of groups of shear nail groups are fixedly installed on the outer surface of the upper end of the main beam frame, and rectangular notches used in cooperation with the shear nail groups are formed in the outer surface of the prefabricated plate; the plate moving device is used for optimizing the traditional hoisting type installation mode, shortening the time required during installation of the prefabricated bridge deck, improving the continuity of the prefabricated bridge deck assembly, the auxiliary cross beam is used for replacing the traditional welding fixing mode by means of the splicing type structure, so that an arbitrary number of auxiliary cross beams can be additionally installed between the two groups of main beam frames, and the structural strength between the two groups of main beam frames can be increased through the auxiliary cross beam.

Description

Technical Field

[0001] This invention belongs to the technical field of prefabricated bridge decks, and more specifically, it relates to an assembled prefabricated bridge deck and its assembly method. Background Technology

[0002] Bridge decks, also known as roadway decks, are load-bearing structures that directly bear the wheel pressure of vehicles. Structurally, they are typically integrally connected to the beam ribs and diaphragms of the main girder. This allows them to transfer vehicle loads to the main girder while also forming part of the main girder's cross-section, ensuring the overall function of the main girder. Bridge decks are generally made of reinforced concrete and can be prestressed laterally.

[0003] Patent document CN217476190U discloses a prefabricated bridge deck template, including a support, a base plate, a first baffle, and a second baffle. The support is located below the base plate for horizontal support. The base plate includes a support frame and a support plate laid on the support frame. The support frame includes horizontally arranged crossbeams, and connecting beams are provided at both ends of the horizontally arranged crossbeams. The connecting beams are connected to the ends of each crossbeam. The first baffle is detachably connected to the outside of the two outermost crossbeams, and the second baffle is detachably connected to the outside of the connecting beams. Vertical steel reinforcement limiting plates are provided on both the first and second baffles. The template can be assembled, disassembled after use, and reused, thus reducing production costs.

[0004] Traditional precast bridge decks have certain shortcomings in assembly. Firstly, they are lifted by hoisting equipment, which is then used to adjust their position, increasing assembly time and reducing the continuity of the assembly process. Secondly, traditional precast bridge decks lack a modular crossbeam reinforcement structure; the bottom crossbeams are fixed, limiting the flexibility of the assembly process. Thirdly, the fixing method for traditional precast bridge decks is simplistic, relying on wet joints to secure two decks. This wet jointing method makes the decks susceptible to cracking under external forces, affecting the overall structural strength of the bridge deck. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated bridge deck and its assembly method, which can solve the existing problems.

[0006] The problem solved by this invention is:

[0007] 1. Traditionally, precast bridge decks are lifted by hoisting equipment and then the hoisting equipment is used to adjust the position of the precast bridge decks, which increases the time required for the assembly of precast bridge decks and reduces the continuity of the assembly operation.

[0008] 2. Secondly, traditional precast bridge decks do not have a combined crossbeam reinforcement structure. The crossbeam structure at the bottom of the precast bridge deck is fixed, and the number of crossbeams cannot be flexibly adjusted, which reduces the flexibility of assembling the precast bridge deck.

[0009] 3. Traditional precast bridge decks have a single fixing method, which uses wet jointing to fix two precast bridge decks. Precast bridge decks are prone to cracking during wet jointing when subjected to external forces, thus affecting the overall structural strength of the precast bridge decks.

[0010] The objective of this invention can be achieved through the following technical solutions:

[0011] A prefabricated bridge deck includes a main beam frame and several sets of prefabricated slabs. The prefabricated slabs are fixedly installed on the upper outer surface of the main beam frame. There are two main beam frames, and a main crossbeam is fixedly installed between both ends of the two main beam frames. Several sets of secondary crossbeams are spliced ​​and installed between the two main beam frames, and the sets of secondary crossbeams are arranged side by side. Several sets of shear studs are fixedly installed on the upper outer surface of the main beam frame. A rectangular slot for cooperating with the shear studs is opened through the outer surface of the prefabricated slab. A slab-moving device for adjusting the assembly position of the prefabricated slab is movably installed between the secondary crossbeams and the prefabricated slab. Two sets of docking blocks are fixedly installed on the outer surface of one end of the prefabricated slab, and two sets of docking slots are provided on the other end of the prefabricated slab. A lifting base plate is fixedly installed at the bottom of the main crossbeam.

[0012] As a further technical solution of the present invention, several sets of transverse steel bars are fixedly installed on both sides of the precast slab, and several sets of first steel bars and second steel bars are respectively installed at both ends of the precast slab. When the precast slab is spliced, the first steel bars and second steel bars between the two precast slabs are staggered and overlapped. The user then pours concrete on the first steel bars and second steel bars to wet-joint and fix the gap between the two precast slabs.

[0013] As a further technical solution of the present invention, a wet joint is provided between the two sets of precast slabs. The shear nail group and the precast slab are connected through a rectangular slot. The height of the shear nail group is less than the depth of the rectangular slot. When the precast slab is dropped, the shear nail group passes through the rectangular slot. Because the height of the shear nail group is lower than the rectangular slot, no steel bars will be exposed in the precast slab when it is poured and fixed. The user pours concrete in the rectangular slot and after it solidifies, the fixing operation between the precast slab and the main beam is completed.

[0014] As a further technical solution of the present invention, fixing blocks are fixedly installed on the outer surfaces of both ends of the secondary crossbeam, and the inner side of the main beam frame is provided with a docking groove for use with the fixing blocks. A support frame is provided between the secondary crossbeam and the fixing blocks. The secondary crossbeam adopts a splicing structure design, which allows it to install a corresponding number of secondary crossbeams according to the load-bearing capacity of the bridge deck. During the installation operation, the fixing blocks of the secondary crossbeam are clamped in the docking grooves of the two main beam frames, and the fixing blocks are fixed by bolts. At the same time, the fixing blocks and the secondary crossbeam are reinforced by a support frame, which can effectively improve the structural strength of the secondary crossbeam.

[0015] As a further technical solution of the present invention, the two ends of the main beam frame are fixed together by a docking clamp. Both ends of the main beam frame are provided with slots for use with the docking clamp. A pad is fixedly installed on the upper outer surface of the main beam frame. The pad can compensate for the gaps when the precast slab is installed. Secondly, the docking clamp can fix the two main beam frames together, thereby increasing the installation length of the main beam frame.

[0016] As a further technical solution of the present invention, the plate-moving device includes a movable base plate and a lifting support plate. The lifting support plate is movably installed on the upper part of the movable base plate. Two splicing slide rails are provided at the bottom of the movable base plate. The movable base plate and the sub-crossbeam are movably connected through the splicing slide rails. During the installation operation of the precast bridge panel, the installation position of the precast bridge panel can be flexibly adjusted by the plate-moving device, thereby shortening the time required for the installation of the precast bridge panel.

[0017] As a further technical solution of the present invention, both ends of the splicing slide rail are provided with fixing clips for fixing the secondary crossbeam, and the lower end of the movable base plate is provided with a strip groove for use with the splicing slide rail. An electric caster is movably installed on the inner side of the strip groove, and the movable base plate is driven by the electric caster to move along the direction of the splicing slide rail.

[0018] As a further technical solution of the present invention, a transverse moving block for driving the lifting pallet to move horizontally is movably installed on the inner side of the movable base plate. The movable base plate and the transverse moving block are driven by a screw. One end of the movable base plate is provided with a motor for driving the screw. The upper end of the transverse moving block is provided with a lifting seat for driving the lifting pallet to move up and down. The upper end of the lifting pallet is provided with four sets of rubber pads. By placing the precast slab on the upper part of the lifting pallet, the bidirectional adjustment operation of the precast slab is completed by the movement of the movable base plate and the transverse moving block. The lifting pallet is driven by the lifting seat, so that the lifting pallet moves the precast slab downward, completing the docking operation of the assembled precast bridge panel.

[0019] The assembly method for this prefabricated bridge deck includes the following specific steps:

[0020] Step 1: Fix several sets of secondary crossbeams between two main beam frames, then install the main crossbeams at both ends of the main beam frames to complete the main beam installation operation, and at the same time install the plate-moving device on the secondary crossbeams.

[0021] Step 2: Lift the precast slab so that it is placed on the upper part of the lifting platform. Move the precast slab along the splicing slide rail by moving the base plate. At the same time, start the motor so that the motor drives the lead screw to rotate, causing the transverse moving block to move the precast slab, so that the precast slab moves horizontally along the moving base plate, completing the bidirectional movement of the precast slab. Align the shear nail group and the rectangular groove with each other. Then, use the lifting seat to lower the precast slab.

[0022] Step 3: The first and second reinforcing bars between the two sets of precast slabs are staggered and overlapped. Concrete is poured at the wet joint between the two sets of precast slabs, and at the same time, concrete is poured into the rectangular groove to fix the shear nail group, thus completing the fixing operation between the two sets of precast slabs and the main beam frame.

[0023] The beneficial effects of this invention are:

[0024] 1. By setting up a slab-shifting device, the traditional hoisting installation method is optimized during the installation of prefabricated bridge panels, shortening the installation time and improving the continuity of prefabricated bridge panel assembly. During operation, the user fixes the secondary crossbeams between two sets of main beam frames, providing support for the slab-shifting device. When installing the slab-shifting device, first install two sets of splicing slide rails on the secondary crossbeams, securing the splicing slide rails and the secondary crossbeams at both ends with fixing clips. Then, place the moving base plate of the slab-shifting device on the two sets of splicing slide rails, so that the strip groove is engaged with the splicing slide rails. The user first uses hoisting equipment to lift the prefabricated slab to be installed, placing it on the upper end of the lifting platform. The prefabricated slab needs to be aligned with the lifting platform during placement. The sides of the pallet are aligned to prevent the precast slab from falling at an angle. The user starts the electric casters, which drive the moving base plate to move. This allows the precast slab on the pallet-shifting device to move and adjust along the splicing slide rail. Simultaneously, the motor is started, which drives the lead screw to rotate, causing the transverse moving block to move the precast slab. This allows the precast slab to move horizontally along the moving base plate, completing the bidirectional movement of the precast slab. This aligns the shear studs and the rectangular slot. The jacking seat then lowers the precast slab, allowing the shear studs to insert into the rectangular slot. Concrete is then poured to fix it in place. While the pallet-shifting device is adjusting the precast slab, the hoisting equipment can directly hoist the next precast slab, thereby improving the continuity and efficiency of precast slab assembly.

[0025] 2. By setting up secondary crossbeams, during the installation of this prefabricated bridge deck, the secondary crossbeams utilize a splicing structure instead of the traditional welding fixing method. This allows any number of secondary crossbeams to be added between the two sets of main beams. The secondary crossbeams increase the structural strength between the two sets of main beams and also provide support for the use of the slab-moving device. During installation, the fixing blocks of the secondary crossbeams are inserted into the docking slots of the main beams, and then the main beams and fixing blocks are fixed using bolts to complete the assembly of the secondary crossbeams. Furthermore, the secondary crossbeams and fixing blocks are reinforced by a support frame to enhance their structural strength. Additionally, the use of shear studs allows for cement fixation after the prefabricated slabs and main beams are installed. Multiple main beams are fixed together using docking clips and bolts, allowing for arbitrary adjustment of the installation length of the main beams and improving the flexibility of the prefabricated bridge deck installation.

[0026] 3. By setting up docking blocks and docking slots, during the installation of this prefabricated bridge deck, the docking blocks and docking slots provide a tenon-and-mortise auxiliary docking structure between multiple prefabricated slabs, preventing cracking during fixing. During operation, the docking block of one prefabricated slab is aligned with the docking slot of another. A lifting platform is used to drive the lifting plate, causing the prefabricated slab to move downwards, thus locking the docking block in the docking slot. The docking blocks feature a sloping design on both sides, ensuring a tight connection between the two prefabricated slabs. Furthermore, the first and second reinforcing bars between the two sets of prefabricated slabs are staggered and overlapped. Concrete is poured at the wet joint between the two sets of prefabricated slabs, and concrete is simultaneously poured into the rectangular slot to fix the shear studs, completing the fixing operation between the two sets of prefabricated slabs and the main beam frame. The docking blocks and docking slots provide an auxiliary docking structure for the prefabricated bridge deck, improving its assembly effect. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the overall structure of a prefabricated bridge deck according to the present invention;

[0029] Figure 2 This is an overall structural diagram of the main beam frame in a prefabricated bridge deck according to the present invention;

[0030] Figure 3 This is an overall structural diagram of a prefabricated bridge deck panel shifting device according to the present invention;

[0031] Figure 4 This is an overall structural diagram of the prefabricated slab in an assembled prefabricated bridge deck according to the present invention;

[0032] Figure 5This is an overall structural diagram of the movable base plate in a prefabricated bridge deck according to the present invention;

[0033] Figure 6 This is an overall structural diagram of the secondary crossbeam in a prefabricated bridge deck according to the present invention.

[0034] In the diagram: 1. Main beam frame; 2. Connecting clamp; 3. Main crossbeam; 4. First reinforcing bar; 5. Connecting clamp block; 6. Transverse reinforcing bar; 7. Wet joint; 8. Precast slab; 9. Rectangular groove; 10. Connecting groove; 11. Pad plate; 12. Shear stud group; 13. Secondary crossbeam; 14. Rubber pad; 15. Lifting base plate; 16. Plate moving device; 17. Moving base plate; 18. Screw rod; 19. Splicing slide rail; 20. Fixed clamp; 21. Transverse moving block; 22. Motor; 23. Lifting support plate; 24. Lifting seat; 25. Second reinforcing bar; 26. Connecting groove; 27. Strip slide; 28. Electric caster; 29. ​​Fixed clamp block; 30. Support frame. Detailed Implementation

[0035] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0036] like Figure 1-6 As shown, a prefabricated bridge deck includes a main beam frame 1 and several sets of prefabricated slabs 8. The prefabricated slabs 8 are fixedly installed on the upper outer surface of the main beam frame 1. There are two main beam frames 1, and a main crossbeam 3 is fixedly installed between the two ends of each main beam frame 1. Several sets of secondary crossbeams 13 are spliced ​​and installed between the two main beam frames 1, and the sets of secondary crossbeams 13 are arranged side by side. Several sets of shear studs 12 are fixedly installed on the upper outer surface of the main beam frame 1. A rectangular slot 9 for use with the shear studs 12 is opened through the outer surface of the prefabricated slabs 8. The secondary crossbeams 13 and the prefabricated slabs 8 are connected. The installation includes a slab-moving device 16 for adjusting the assembly position of the precast slab 8. Two sets of docking blocks 5 are fixedly installed on the outer surface of one end of the precast slab 8, and two sets of docking slots 26 are provided on the other end of the precast slab 8. A lifting base plate 15 is fixedly installed at the bottom of the main beam 3. During the relocation operation, the slab-moving device 16 is moved to one end of the main beam frame 1. The last precast slab 8 on the main beam frame 1 is installed last. The reserved position allows the slab-moving device 16 to be removed. Then, the splicing slide rail 19 is removed by disassembly and assembly. The last precast slab 8 is installed by hoisting.

[0037] Several sets of transverse reinforcing bars 6 are fixedly installed on both sides of the precast slab 8. Several sets of first reinforcing bars 4 and second reinforcing bars 25 are installed at both ends of the precast slab 8. When the precast slab 8 is spliced, the first reinforcing bars 4 and second reinforcing bars 25 between the two precast slabs 8 are staggered and overlapped. The user then pours concrete on the first reinforcing bars 4 and second reinforcing bars 25 to wet-joint and fix the gap between the two precast slabs 8.

[0038] A wet joint 7 is provided between the two sets of precast slabs 8. The shear nail group 12 and the precast slab 8 are connected through a rectangular slot 9. The height of the shear nail group 12 is less than the depth of the rectangular slot 9. When the precast slab 8 is dropped, the shear nail group 12 passes through the rectangular slot 9. Because the height of the shear nail group 12 is lower than the rectangular slot 9, no steel bars will be exposed when the precast slab 8 is poured and fixed. The user completes the fixing operation between the precast slab 8 and the main beam 3 by pouring concrete in the rectangular slot 9 and waiting for it to solidify.

[0039] Both ends of the secondary crossbeam 13 are fixedly mounted with fixing blocks 29 on their outer surfaces. The inner side of the main beam frame 1 is provided with a docking groove 10 for use with the fixing blocks 29. A support frame 30 is provided between the secondary crossbeam 13 and the fixing blocks 29. The secondary crossbeam 13 adopts a splicing structure design, which allows it to install a corresponding number of secondary crossbeams 13 according to the load-bearing capacity of the bridge deck. During the installation operation, the fixing blocks 29 of the secondary crossbeam 13 are clamped in the docking groove 10 of the two main beam frames 1, and the fixing blocks 29 are fixed by bolts. At the same time, the fixing blocks 29 and the secondary crossbeam 13 are reinforced by the support frame 30, which can effectively improve the structural strength of the secondary crossbeam 13.

[0040] The two ends of the main beam frame 1 are connected and fixed by the docking clip 2. Both ends of the main beam frame 1 are provided with slots for use with the docking clip 2. A pad 11 is fixedly installed on the upper outer surface of the main beam frame 1. The pad 11 can compensate for the gaps when the precast slab 8 is installed. Secondly, the docking clip 2 can be used to fix the two main beam frames 1 together, thereby increasing the installation length of the main beam frame 1.

[0041] The slab-shifting device 16 includes a movable base plate 17 and a lifting support plate 23. The lifting support plate 23 is movably installed on the upper part of the movable base plate 17. Two splicing slide rails 19 are provided at the bottom of the movable base plate 17. The movable base plate 17 and the sub-crossbeam 13 are movably connected through the splicing slide rails 19. During the installation of the precast bridge deck, the installation position of the precast bridge deck can be flexibly adjusted by the slab-shifting device 16, thereby shortening the time required for the installation of the precast bridge deck.

[0042] Both ends of the splicing slide rail 19 are provided with fixing clips 20 for fixing the secondary crossbeam 13. The lower end of the movable base plate 17 is provided with a strip groove 27 for use with the splicing slide rail 19. An electric caster 28 is movably installed on the inner side of the strip groove 27. The movable base plate 17 is driven by the electric caster 28, so that the movable base plate 17 moves along the direction of the splicing slide rail 19.

[0043] A transverse moving block 21 for driving the lifting pallet 23 to move horizontally is movably installed on the inner side of the movable base plate 17. The movable base plate 17 and the transverse moving block 21 are driven by a lead screw 18. One end of the movable base plate 17 is provided with a motor 22 for driving the lead screw 18. The upper end of the transverse moving block 21 is provided with a lifting seat 24 for driving the lifting pallet 23 to move up and down. The upper end of the lifting pallet 23 is provided with four sets of rubber pads 14. By placing the precast slab 8 on the upper part of the lifting pallet 23, the bidirectional adjustment operation of the precast slab 8 is completed by the movement of the movable base plate 17 and the transverse moving block 21. The lifting pallet 23 is driven by the lifting seat 24, so that the lifting pallet 23 drives the precast slab 8 to move down, completing the docking operation of the assembled precast bridge deck.

[0044] The assembly method for this prefabricated bridge deck includes the following specific steps:

[0045] Step 1: Fix several sets of secondary crossbeams 13 between two main beam frames 1, and then install the main crossbeams 3 at both ends of the main beam frame 1 to complete the main beam installation operation. At the same time, install the plate moving device 16 on the secondary crossbeams 13.

[0046] Step 2: Lift the precast slab 8 so that it is placed on the upper part of the lifting support plate 23. Move the precast slab 8 along the splicing slide rail 19 by moving the base plate 17. At the same time, start the motor 22 so that the motor 22 drives the lead screw 18 to rotate, causing the transverse moving block 21 to move the precast slab 8 so that it moves horizontally along the base plate 17, completing the bidirectional movement of the precast slab 8. Align the shear nail group 12 and the rectangular slot 9 with each other. Then, lower the precast slab 8 by lifting seat 24.

[0047] Step 3: The first reinforcing bar 4 and the second reinforcing bar 25 between the two sets of precast slabs 8 are staggered and overlapped. Concrete is poured at the wet joint 7 between the two sets of precast slabs 8. At the same time, concrete is poured into the rectangular groove 9 to fix the shear nail group 12, thus completing the fixing operation between the two sets of precast slabs 8 and the main beam frame 1.

[0048] This type of prefabricated bridge deck uses a slab-shifting device 16 to optimize the traditional hoisting installation method during installation, shortening the installation time and improving the continuity of prefabricated bridge deck assembly. During operation, the user fixes the secondary crossbeams 13 between two sets of main beam frames 1, providing support for the slab-shifting device 16. When installing the slab-shifting device 16, two sets of splicing slide rails 19 are first installed on the secondary crossbeams 13. The splicing slide rails 19 and the secondary crossbeams 13 at both ends are fixed using fixing clips 20. Then, the moving base plate 17 of the slab-shifting device 16 is placed on the two sets of splicing slide rails 19, so that the strip groove 27 is engaged with the splicing slide rails 19. The user first uses hoisting equipment to lift the prefabricated slab 8 to be installed, placing it on the upper end of the lifting platform 23. The prefabricated slab 8 needs to be aligned with... The sides of the lifting platform 23 are aligned to prevent the precast slab 8 from falling at an angle. The user starts the electric caster 28, which drives the moving base plate 17 to move. This causes the precast slab 8 on the slab moving device 16 to move and adjust along the splicing slide rail 19. At the same time, the motor 22 is started, which drives the lead screw 18 to rotate. This causes the transverse moving block 21 to move the precast slab 8, which moves along the moving base plate 17. This completes the bidirectional movement of the precast slab 8, thereby aligning the shear nail group 12 and the rectangular slot 9. The jacking seat 24 then lowers the precast slab 8, allowing the shear nail group 12 to be inserted into the rectangular slot 9. Concrete is then poured to fix it in place. While the slab moving device 16 is moving and adjusting the precast slab 8, its hoisting equipment can directly hoist the next precast slab 8, thereby improving the continuity and efficiency of the precast slab 8 assembly.

[0049] By setting up secondary crossbeams 13, during the installation of this prefabricated bridge deck, the secondary crossbeams 13 utilize a splicing structure instead of the traditional welding fixing method, allowing any number of secondary crossbeams 13 to be installed between the two sets of main beam frames 1. The secondary crossbeams 13 increase the structural strength between the two sets of main beam frames 1, and also provide support for the use of the plate-moving device 16. During installation, the fixing clips 29 of the secondary crossbeams 13 are inserted into the mating grooves 10 of the main beam frame 1, and then the main beam frame 1 and the fixing clips are secured using a bolt structure. The sub-beam 13 is assembled by fixing the blocks 29 together. Then, the sub-beam 13 and the fixing blocks 29 are reinforced by the support frame 30 to improve the structural strength of the sub-beam 13. At the same time, the shear nail group 12 can be used to fix the precast slab 8 and the main beam frame 1 by pouring cement after installation. Multiple main beam frames 1 are fixed together by the connecting clips 2 and bolts, so that the installation length of the main beam frame 1 can be adjusted arbitrarily, improving the flexibility of the precast bridge deck installation operation.

[0050] By setting up the docking block 5 and the docking slot 26, during the installation of this prefabricated bridge panel, the docking block 5, in conjunction with the docking slot 26, provides a tenon-and-mortise auxiliary docking structure between multiple prefabricated panels 8, preventing cracking between two prefabricated panels 8 during fixing. During operation, the docking block 5 of one prefabricated panel 8 is aligned with the docking slot 26 of another prefabricated panel 8. The lifting platform 24 drives the lifting plate 23, causing the lifting plate 23 to move the prefabricated panel 8 downwards, thereby locking the docking block 5 into the docking slot 26. The two sides of the docking block 5 are designed with a sloping structure, which allows the two precast slabs 8 to be tightly connected when they are docked. Secondly, the first steel bar 4 and the second steel bar 25 between the two sets of precast slabs 8 are staggered and overlapped. Concrete is poured at the wet joint 7 between the two sets of precast slabs 8, and concrete is poured at the rectangular slot 9 to fix the shear nail group 12, thus completing the fixing operation between the two sets of precast slabs 8 and the main beam frame 1. The docking block 5 and the docking slot 26 are used to make the precast bridge deck have an auxiliary docking structure, which improves its assembly effect.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An assembled prefabricated bridge deck, comprising a main beam frame (1) and a plurality of groups of prefabricated plates (8), the prefabricated plates (8) being fixedly installed on the upper end outer surface of the main beam frame (1), the number of the main beam frames (1) being two, and a main cross beam (3) being fixedly installed between the two ends of the two main beam frames (1), characterized in that, A plurality of groups of vice cross beams (13) are spliced and installed between the two main beam frames (1), the plurality of groups of vice cross beams (13) are arranged side by side, a plurality of groups of shear nail groups (12) are fixedly installed on the upper end outer surface of the main beam frame (1), a rectangular notch (9) used in cooperation with the shear nail group (12) is penetrated on the outer surface of the prefabricated plate (8), a plate moving device (16) used for adjusting the assembly position of the prefabricated plate (8) is movably installed between the vice cross beam (13) and the prefabricated plate (8), two groups of butt joint clamping blocks (5) are fixedly installed on one end outer surface of the prefabricated plate (8), and the other end of the prefabricated plate (8) is provided with two groups of butt joint clamping grooves (26), and a jacking bottom plate (15) is fixedly installed at the bottom of the main cross beam (3). The plate moving device (16) comprises a moving bottom plate (17) and a lifting supporting plate (23), the lifting supporting plate (23) is movably installed on the upper portion of the moving bottom plate (17), two spliced sliding rails (19) are arranged on the bottom of the moving bottom plate (17), and the moving bottom plate (17) and the vice cross beam (13) are movably connected through the spliced sliding rail (19). The two ends of the spliced sliding rail (19) are provided with fixed clamping heads (20) used for fixing the vice cross beam (13), the lower end of the moving bottom plate (17) is provided with a strip-shaped sliding groove (27) used in cooperation with the spliced sliding rail (19), and the inner side of the strip-shaped sliding groove (27) is movably installed with an electric trolley (28). The inner side of the moving bottom plate (17) is movably installed with a transverse moving block (21) used for driving the lifting supporting plate (23) to translate, the moving bottom plate (17) and the transverse moving block (21) are driven through a lead screw (18), one end of the moving bottom plate (17) is provided with a motor (22) used for driving the lead screw (18), the upper end of the transverse moving block (21) is provided with a jacking seat (24) used for driving the lifting supporting plate (23) to move up and down, and the upper end of the lifting supporting plate (23) is provided with four groups of rubber pads (14).

2. The prefabricated bridge deck panel according to claim 1, characterized in that A plurality of groups of transverse steel bars (6) are fixedly installed on the two sides of the prefabricated plate (8), and a plurality of groups of first steel bars (4) and second steel bars (25) are respectively installed at the two ends of the prefabricated plate (8).

3. The prefabricated bridge deck panel according to claim 2, characterized in that Wet joints (7) are arranged between the two groups of prefabricated plates (8), the shear nail group (12) and the prefabricated plate (8) are butted through the rectangular notch (9), and the height of the shear nail group (12) is less than the depth of the rectangular notch (9).

4. The prefabricated bridge deck panel of claim 1, wherein, The outer surfaces of the two ends of the vice cross beam (13) are fixedly installed with fixed clamping blocks (29), the inner side of the main beam frame (1) is provided with a butt joint groove (10) used in cooperation with the fixed clamping block (29), and the vice cross beam (13) and the fixed clamping block (29) are provided with a supporting frame (30).

5. The prefabricated bridge deck panel of claim 1, wherein, The two ends of the main beam frame (1) are butted and fixed through the butt joint clamping head (2), the two ends of the main beam frame (1) are provided with a slot cooperating with the butt joint clamping head (2), and the upper end outer surface of the main beam frame (1) is fixedly installed with a backing plate (11).

6. The method of claim 1, wherein the method further comprises: The specific operation steps are as follows: Step one, fix several groups of vice cross beams (13) between two main beam frames (1), install main cross beams (3) at both ends of main beam frame (1), complete the installation operation of main beam, and install moving plate device (16) on vice cross beam (13); Step two, hoist precast slab (8) and place it on the upper part of lifting supporting plate (23), drive precast slab (8) by moving bottom plate (17), make precast slab (8) move along the direction of splicing slide rail (19), start motor (22) and make it drive screw rod (18) rotate, drive precast slab (8) by transverse moving block (21), make precast slab (8) translate along the direction of moving bottom plate (17), complete the bidirectional movement of precast slab (8), make shear nail group (12) and rectangular notch (9) align with each other, drive precast slab (8) to fall by jacking seat (24); Step three, the first steel bar (4) and the second steel bar (25) between two groups of precast slab (8) are overlapped in error, pour concrete at wet joint (7) between two groups of precast slab (8), and pour concrete in rectangular notch (9) to fix shear nail group (12), complete the fixing operation between two groups of precast slab (8) and main beam frame (1).

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