A prefabricated bridge deck component and a connection structure for on-site assembly of the bridge deck.

Abstract

This application relates to a prefabricated bridge deck component and a connection structure for on-site assembly of the bridge deck, belonging to the technical field of bridges. It includes a deck module, which is cast from UHPC material. Several deck modules are provided, each including edge blocks and a middle block. Two edge blocks are provided, each with a first through hole penetrating its opposite sidewall. A second through hole is penetrating the sidewall of one edge block on the side of the first through hole. A middle block is positioned between the two edge blocks, with a third through hole penetrating its sidewall facing the edge blocks, aligned with the first through hole. Two fourth through holes are penetrating the sidewalls of the middle block on the side of the third through hole, aligned with the second through holes. This application has the effect of reducing the impact of weather on construction and shortening the construction period.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bridges, in particular to a prefabricated piece of a bridge deck slab and a connecting structure for on-site assembly of the bridge deck slab. BACKGROUND

[0002] The construction industry is a pillar industry of the national economy of China, and is an important traditional industry and basic industry. In recent years, the construction industry of China has developed rapidly, the construction capacity has been continuously enhanced, and the industrial scale has been continuously expanded.

[0003] The construction of bridges can provide people with convenient travel, with the continuous development of the economy, the urban traffic construction has become an important aspect of urban development, and the urban bridge as the most important part of the traffic development is a very important part in the process of infrastructure construction, and the urban bridge is also in the stage of continuous development and innovation. At present, the development of urban bridge engineering has made great progress.

[0004] According to the related technology in the above, the inventors believe that the existing bridge deck slab construction is all cast in place, which is greatly affected by the weather, and the construction period is long, and the above defects are proposed. SUMMARY

[0005] In order to reduce the influence of weather on construction and shorten the construction period, the application provides a prefabricated piece of a bridge deck slab and a connecting structure for on-site assembly of the bridge deck slab.

[0006] The application provides a prefabricated piece of a bridge deck slab, which adopts the following technical scheme:

[0007] A prefabricated piece of a bridge deck slab, comprising a slab module, the slab module is made of UHPC pouring, the slab module is provided with a plurality of slab modules, the slab module comprises a side block and an intermediate block, the side block is provided with two, the side walls of the two side blocks opposite to each other are all provided with a first through hole, the side wall of the side block on one side of the first through hole is provided with a second through hole, the intermediate block is arranged between the two side blocks, the side wall of the intermediate block facing the side block is provided with a third through hole, the third through hole is aligned with the first through hole, the side wall of the intermediate block on one side of the third through hole is provided with a fourth through hole, and the fourth through hole is aligned with the second through hole.

[0008] By adopting the above technical scheme, the slab module is prefabricated in the factory in advance, the slab module is made of UHPC pouring, and at present, all the construction is cast in place. The UHPC pouring is affected by the weather and has strict requirements on the environment. The prefabrication process in the factory can meet the pouring conditions of UHPC, reduce the influence of weather on construction, and UHPC pouring needs to consume a lot of time, and the prefabrication of the slab module can shorten the construction period.

[0009] The application also provides a connecting structure for field assembly of a bridge deck panel.

[0010] The connecting structure for field assembly of a bridge deck panel comprises a prefabricated part of the bridge deck panel.

[0011] Optionally, the third through hole is provided with a first bidirectional screw rod, both ends of the first bidirectional screw rod penetrate through the first through hole and extend to the outside, both ends of the first bidirectional screw rod are provided with threads, the rotation directions of the two threads are opposite, both ends of the first bidirectional screw rod are threadedly connected with first threaded sleeves, and the first threaded sleeves are arranged on the two threads respectively.

[0012] By adopting the above technical scheme, the staff rotates the first bidirectional screw rod to make the two first threaded sleeves move towards each other, the two first threaded sleeves extrude the side blocks through the limiting rods, so that the two side blocks move towards the middle block, and the limiting rods make the first threaded sleeves not easy to rotate with the first bidirectional screw rod. Through the above structure, the effect of panel module splicing is realized.

[0013] Optionally, the fourth through hole is provided with a moving rod, both ends of the moving rod penetrate through the second through hole and extend to the outside, two fixed blocks are arranged between the two adjacent moving rods, the two fixed blocks are arranged on the opposite sides of the two side blocks respectively, a cavity is arranged in the fixed block, the cavity penetrates through the side walls on both sides of the fixed block, the two moving rods penetrate through the cavity and extend to the outside, the two moving rods are fixedly provided with first gears on the circumferential side walls in the cavity, the fixed block is fixedly provided with a rack on the inner walls on both sides in the cavity, and the first gears are meshedly connected with the rack.

[0014] The side wall of the side block away from the middle block is provided with a sliding groove along the horizontal direction, the sliding groove is arranged between the first through hole and the third through hole, the side of the side block away from the middle block is provided with an expansion rod, the expansion rod is slidably connected with the side block along the length direction of the sliding groove, and the ends of the two adjacent expansion rods away from the side block are fixedly connected with the two sides of the fixed block.

[0015] By adopting the above technical scheme, the staff rotates the moving rod to drive the gear to rotate, so that the gear rolls along the rack, and the two adjacent panel modules move towards each other; the movement of the side block makes the expansion rod slide along the sliding groove, and the expansion rod is in a stretched state at this time. Through the above structure, the effect of splicing the two adjacent panel modules is realized.

[0016] Optionally, the two adjacent moving rods are rotationally connected with second threaded sleeves at the ends away from the two fixed blocks, a second bidirectional screw is arranged between the two adjacent second threaded sleeves in the horizontal direction, the two ends of the second bidirectional screw respectively pass through the two second threaded sleeves and extend to the two sides, two threads are formed at the two ends of the second bidirectional screw, the rotation directions of the two threads are opposite, and the two second threaded sleeves are threadedly connected with the two threads of the second bidirectional screw.

[0017] The second gear is fixedly arranged on the circumferential side wall of the moving rod, and the third gear is fixedly arranged on the circumferential side wall of the first bidirectional screw.

[0018] Through the above technical scheme, the second bidirectional screw is rotated to move the two second threaded sleeves towards each other, the two second threaded sleeves move the two moving rods towards each other, the moving rods roll the gears along the racks, so that the gears are rotated, the gears rotate the moving rods, the moving rods rotate the second gear, the second gear rotates the third gear, and the third gear rotates the first bidirectional screw. Through the above structure, the effects of splicing in the panel module and linkage of splicing of two panel modules are realized.

[0019] Optionally, the side wall of the fixed block away from the edge block is fixedly provided with a placement plate, the upper surface of the placement plate is provided with a rotating motor, the output shaft of the rotating motor is fixedly provided with a first bevel gear, the circumferential side wall of the second bidirectional screw is fixedly provided with a second bevel gear, and the first bevel gear is in meshing connection with the second bevel gear.

[0020] Through the above technical scheme, the rotating motor is started to rotate the first bevel gear, the first bevel gear rotates the second bevel gear, and the second bevel gear rotates the second bidirectional screw, so that the effect of conveniently rotating the second screw is realized.

[0021] Optionally, the two sides of the panel module are provided with first fixed plates, one end of each first fixed plate is fixedly connected with the bottom of the edge block, the end of each first fixed plate away from the edge block is fixedly provided with a second fixed plate in the vertical direction, and the first fixed plate and the edge block are a cast-in-place groove.

[0022] Optionally, the side wall of the edge block towards the middle block is fixedly provided with a third fixed plate, the side wall of the middle block towards the edge block is fixedly provided with a fourth fixed plate, the mutually close side surfaces of the third fixed plate and the fourth fixed plate are fixedly provided with first connecting plates, a first tension bolt is arranged between the two first connecting plates, the two ends of the first tension bolt respectively pass through the two first connecting plates and extend to the two sides, the two ends of the first tension bolt are threadedly connected with first nuts, and the edge block and the middle block are also a cast-in-place groove.

[0023] By adopting the technical scheme, the two first connecting plates are connected closely through the first pair of pull bolts and the first nuts, so that the effect of connecting the edge blocks and the middle blocks closely is realized.

[0024] Optionally, two fifth fixing plates are arranged between the two adjacent edge blocks, the two fifth fixing plates are fixedly connected between the edge blocks at the sides away from each other, the two fifth fixing plates are fixedly provided with second connecting plates at the other sides, a second pair of pull bolts is arranged between the two second connecting plates, the two ends of the second pair of pull bolts are penetrated through the two second connecting plates and extended to the two sides, and the two ends of the second pair of pull bolts are threadedly connected with second nuts, and the two adjacent edge blocks are also cast-in-place grooves.

[0025] By adopting the technical scheme, the two second connecting plates are connected closely through the second pair of pull bolts and the second nuts, so that the effect of connecting the adjacent edge blocks closely is realized.

[0026] Optionally, two sixth fixing plates are arranged between the two adjacent middle blocks, the two sixth fixing plates are fixedly connected between the middle blocks at the sides away from each other, the two sixth fixing plates are fixedly provided with third connecting plates at the other sides, a third pair of pull bolts is arranged between the two third connecting plates, the two ends of the third pair of pull bolts are penetrated through the two third connecting plates and extended to the two sides, and the two ends of the third pair of pull bolts are threadedly connected with third nuts, and the two adjacent middle blocks are also cast-in-place grooves.

[0027] By adopting the technical scheme, the two third connecting plates are connected closely through the third pair of pull bolts and the third nuts, so that the effect of connecting the adjacent middle blocks closely is realized.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] 1. UHPC pouring is affected by weather, and precasting in the factory can reduce the influence of weather on construction, and meanwhile, UHPC pouring needs to consume a large amount of time, and panel module precasting can shorten the construction period;

[0030] 2. The workers rotate the first bidirectional lead screw to drive the two first threaded sleeves to extrude the limit rods on the edge blocks, so that the two edge blocks are close to the middle block, so that the effect of panel module splicing is realized;

[0031] 3. The workers rotate the moving rod to make the gear roll along the rack, so that the two adjacent panel modules are close to each other, so that the effect of splicing the two adjacent panel modules is realized. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic view of a prefabricated part of a bridge deck slab and a connecting structure of on-site splicing of the deck slab according to an embodiment of the present application.

[0033] Figure 2 This is a structural schematic diagram illustrating the positions of the first through hole, the second through hole, the third through hole, and the fourth through hole in an embodiment of this application;

[0034] Figure 3 This is a partial schematic diagram illustrating the splicing method between panel modules in an embodiment of this application;

[0035] Figure 4 This is a structural schematic diagram illustrating the positions of the second and third gears in an embodiment of this application;

[0036] Figure 5 This is a partial schematic diagram illustrating the position of the telescopic rod in an embodiment of this application;

[0037] Figure 6 This is a partial schematic diagram in an embodiment of this application, illustrating the splicing method between edge blocks and middle blocks;

[0038] Figure 7 This is a partial schematic diagram in an embodiment of this application, illustrating the splicing method between two edge blocks;

[0039] Figure 8 This is a structural schematic diagram illustrating the position of the sixth fixing plate in the embodiments of this application;

[0040] Figure 9 This is a structural schematic diagram illustrating the splicing method between the two sixth fixing plates in the embodiments of this application.

[0041] In the diagram, 1. Panel module; 11. Edge block; 111. First through hole; 112. Second through hole; 113. Slide groove; 114. First fixing plate; 1141. Second fixing plate; 115. Third fixing plate; 116. Fifth fixing plate; 12. Middle block; 121. Third through hole; 122. Fourth through hole; 123. Fourth fixing plate; 124. Sixth fixing plate; 3. First bidirectional lead screw; 31. First threaded sleeve; 311. Limiting rod; 32. Third gear; 4. Moving rod; 41. Second threaded sleeve; 4 11. Second bidirectional lead screw; 4111. Second bevel gear; 42. First gear; 43. Second gear; 5. Fixing block; 51. Cavity; 511. Rack; 52. Telescopic rod; 53. Placement plate; 531. Rotating motor; 5311. First bevel gear; 6. First connecting piece; 61. First tie bolt; 611. First nut; 7. Second connecting piece; 71. Second tie bolt; 711. Second nut; 8. Third connecting piece; 81. Third tie bolt; 811. Third nut; 9. Cast-in-place trough. Detailed Implementation

[0042] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0043] This application discloses a prefabricated component for bridge deck panels.

[0044] refer to Figure 1 A precast bridge deck includes a deck module 1. The deck module 1 has a single layer of steel mesh inside, the steel mesh is HRB500 steel bar, and the deck module 1 is cast from UHPC material. The UHPC material is a mixture of cement, mineral admixtures, aggregates, additives, fibers and UHPC dry mix, and the water-cement ratio of UHPC should not be greater than 0.22. Several deck modules 1 are provided. In this embodiment, four deck modules 1 are provided, and the four deck modules 1 are evenly spaced along the horizontal direction.

[0045] UHPC material improves the load-bearing capacity of the bridge deck while reducing its weight. Pre-casting UHPC into deck modules 1 reduces the impact of weather on construction and shortens the construction period.

[0046] refer to Figure 2 The panel module 1 includes two edge blocks 11 and a middle block 12. Two edge blocks 11 are provided, and the two edge blocks 11 are aligned. A first through hole 111 is formed through the opposite sidewalls of the two edge blocks 11. A second through hole 112 is formed through the sidewall of the edge block 11 on the same side as the two first through holes 111. Only one second through hole 112 is formed on the sidewall of the edge block 11 at each end, and this second through hole 112 is located on one side of the first through hole 111. Two second through holes 112 are formed on the sidewall of the edge block at the middle position, and these two second through holes 112 are located on both sides of the first through hole 111.

[0047] refer to Figure 2 The middle block 12 is located between the two side blocks 11. The middle block 12 has a third through hole 121 through its side wall facing the side block 11. The third through hole 121 is aligned with the first through hole 111. The two side walls of the middle block 12 on one side of the third through hole 121 have a fourth through hole 122 through its side wall. The fourth through hole 122 is aligned with the second through hole 112.

[0048] The first through hole 111, the second through hole 112, the third through hole 121, and the fourth through hole 122 were pre-drilled in the factory, which improved the efficiency of on-site assembly.

[0049] This application also discloses a connection structure for on-site assembly of bridge deck panels.

[0050] refer to Figure 2 and Figure 3A connection structure for on-site assembly of bridge deck includes a prefabricated bridge deck component. A movable rod 4 is arranged horizontally inside a fourth through hole 122. Both ends of the movable rod 4 pass through a second through hole 112 and extend to the outside. Both ends of the movable rod 4 are rotatably connected to a second threaded sleeve 41. A second bidirectional screw 411 is arranged horizontally between two adjacent second threaded sleeves 41. The two ends of the second bidirectional screw 411 are provided with two sections of threads with opposite directions. The second threaded sleeves 41 are respectively arranged on the two sections of threads.

[0051] Rotating the bidirectional lead screw drives two adjacent second threaded sleeves 41 to move towards each other, and the second threaded sleeves 41 drive two adjacent moving rods 4 to move towards each other, thereby assembling two adjacent panel modules 1.

[0052] refer to Figure 3 A fixing block 5 is provided between the second threaded sleeve 41 and the side block 11. A cavity 51 is provided inside the fixing block 5. The cavity 51 penetrates the side walls on both sides of the fixing block 5. A rack 511 is fixedly provided on the inner top wall of the cavity 51 of the fixing block 5. A rack 511 is also fixedly provided on the inner bottom wall of the cavity 51 of the fixing block 5. The two racks 511 are respectively provided on both sides of the cavity 51. A first gear 42 is fixedly provided on the circumferential side wall of the moving rod 4 in the cavity 51. The first gear 42 corresponds to and meshes with the rack 511.

[0053] The two adjacent moving rods 4 move towards each other, causing the two gears inside the fixed block 5 to move towards each other. The gears roll along the rack 511, thereby causing the moving rods 4 to rotate.

[0054] refer to Figure 3 A placement plate 53 is fixedly connected horizontally to the bottom of the fixed platform away from the side block 11. A rotating motor 531 is mounted on the surface of the placement plate 53. A first bevel gear 5311 is fixedly provided on the circumferential side wall of the output shaft of the rotating motor 531. A second bevel gear 4111 is fixedly provided on the circumferential side wall of the second bidirectional lead screw 411. The second bevel gear 4111 is located in the middle position of the second bidirectional lead screw 411, and the second bevel gear 4111 is meshed with the first bevel gear 5311.

[0055] The rotating motor 531 starts and drives the first bevel gear 5311 to rotate, the first bevel gear 5311 drives the second bevel gear 4111 to rotate, and the second bevel gear 4111 drives the second bidirectional lead screw 411 to rotate.

[0056] refer to Figure 2 and Figure 3A first bidirectional lead screw 3 is provided in the third through hole 121 along the horizontal direction. The two sections of the first bidirectional lead screw 3 have two threads with opposite directions. Both ends of the first bidirectional lead screw 3 pass through the first through hole 111 and extend to the outside. The two threads of the first bidirectional lead screw 3 are respectively threaded to a first threaded sleeve 31. Two limiting rods 311 are fixed between the first threaded sleeve 31 and the side block 11. The two limiting rods 311 are located on the same horizontal line and are located on both sides of the first threaded sleeve 31.

[0057] refer to Figure 4 A second gear 43 and a third gear 32 are provided between the side block 11 and the middle block 12. The second gear 43 is fixed on the circumferential side wall of any moving rod 4, and the third gear 32 is fixed on the circumferential side wall of the first bidirectional lead screw 3.

[0058] The rotation of the moving rod 4 drives the second gear 43 to rotate, the second gear 43 drives the third gear 32 to rotate, the third gear 32 drives the first bidirectional lead screw 3 to rotate, the first bidirectional lead screw 3 drives the two first threaded sleeves 31 at its two ends to move towards each other, and the first threaded sleeves 31 drive the side blocks 11 on both sides to move closer to the middle block 12 by squeezing the limiting rod 311.

[0059] refer to Figure 2 and Figure 5 The side block 11 has a horizontally oriented groove 113 on its side wall between the first through hole 111 and the second through hole 112. A telescopic rod 52 is installed within the groove 113. The telescopic rod 52 has a multi-stage telescopic structure. One end of the telescopic rod 52 is fixedly connected to a fixing block 5, and the other end of the telescopic rod 52 is slidably connected to the side block 11 along the length of the groove 113. Two adjacent telescopic rods 52 are respectively positioned at both ends of the fixing blocks 5. The side block 11 drives the telescopic rod 52 to slide along the groove 113, simultaneously stretching the telescopic rod 52.

[0060] refer to Figure 1 The bottom of both sides of the panel module 1 is fixedly connected with a first fixing plate 114 in the vertical direction. The end of the first fixing plate 114 away from the panel module 1 is fixedly connected with a second top plate in the vertical direction. The first fixing plate 114 and the panel module 1 are connected to a cast-in-place trough 9.

[0061] refer to Figure 4 and Figure 6A third fixing plate 115 is fixedly connected horizontally to the bottom of the side block 11 facing the middle block 12, and a fourth fixing plate 123 is fixedly connected to the bottom of the middle block 12 facing the side block 11. The surfaces of the third fixing plate 115 and the fourth fixing plate 123 that are close to each other are fixedly connected vertically to the first connecting pieces 6. The surfaces of the two first connecting pieces 6 on opposite sides are pressed together. A plurality of first tie bolts 61 are provided between the two first connecting pieces 6. In this embodiment, three first tie bolts 61 are provided, and the three tie bolts are evenly spaced along the length of the first connecting pieces 6. Both ends of the first tie bolts 61 pass through the two first connecting pieces 6 and extend to both sides. Both ends of the first tie bolts 61 are threadedly connected to the first nuts 611. The area between the side block 11 and the middle block 12 is also a cast-in-place groove 9.

[0062] refer to Figure 3 and Figure 7 Two fifth fixing plates 116 are arranged horizontally between two adjacent side blocks 11. The two fifth fixing plates 116 are fixedly connected to the bottom of the side block 11 on the side away from each other. The other side of the two fifth fixing plates 116 is fixedly connected to a second connecting piece 7 in the vertical direction. A number of second tie bolts 71 are arranged between the two second connecting pieces 7. In this embodiment, three second tie bolts 71 are arranged. The three second tie bolts 71 are evenly spaced along the length of the second connecting piece 7. Both ends of the second tie bolts 71 pass through the two second connecting pieces 7 and extend to both sides. Both ends of the second tie bolts 71 are threaded with a second nut 711. The adjacent side blocks 11 are also connected to a cast-in-place groove 9.

[0063] refer to Figure 8 and 9 Two sixth fixing plates 124 are provided between two adjacent intermediate blocks 12. The side of the two sixth fixing plates 124 that is far apart is fixedly connected to the bottom of the intermediate block 12. The other side of the two sixth fixing plates 124 is fixedly connected to a third connecting piece 8 in the vertical direction. A number of third tie bolts 81 are provided between the two third connecting pieces 8. In this embodiment, three third tie bolts 81 are provided. The three third tie bolts 81 are evenly spaced along the length direction of the third connecting piece 8. Both ends of the third tie bolts 81 pass through the two third connecting pieces 8 and extend to both sides. Both ends of the third tie bolts 81 are threaded with a third nut 811. The adjacent intermediate blocks 12 are also connected to a cast-in-place groove 9.

[0064] After panel module 1 is assembled, workers tighten the first nut 611 to secure the first connecting pieces 6 together, then tighten the second nut 711 to secure the second connecting pieces 7 together, and finally tighten the third nut 811 to secure the third connecting pieces 8 together. After reinforcement, workers pour UHPC high-performance concrete into the cast-in-place trench 9. After the UHPC high-performance concrete has solidified, a waterproof material is applied to the surface of the UHPC high-performance concrete. In this embodiment, polyurethane waterproof coating is used as the waterproof material.

[0065] The implementation principle of the prefabricated bridge deck component and the connection structure for on-site assembly of the bridge deck according to an embodiment of this application is as follows: The rotating motor 531 starts and rotates via the first bevel gear 5311 and the second bevel gear 4111. The second bevel gear 4111 drives the second bidirectional lead screw 411 to rotate. The rotation of the bidirectional lead screw drives the two adjacent moving rods 4 to move towards each other via the second threaded sleeve 41. The two moving rods 4 move towards each other, causing the gear to roll along the rack 511, thereby driving the moving rod 4 to rotate. The rotation of the moving rod 4 drives the third gear 32 via the second gear 43 to rotate the first bidirectional lead screw 3. The first bidirectional lead screw 3 causes the first threaded sleeve 31 to drive the limiting rod 311 to press against the edge block 11, thereby assembling the panel module 1. After the panel module 1 is assembled, the workers tighten the first nut 611, the second nut 711, and the third nut 811 in sequence to reinforce the connection between the panel modules 1. After reinforcement, the workers pour UHPC high-performance concrete into the cast-in-place trench 9. After the UHPC high-performance concrete solidifies, a waterproof material is applied to the surface of the UHPC high-performance concrete. Through the above structure, UHPC material improves the load-bearing capacity of the bridge deck, and the prefabricated panel modules 1 are then assembled on site, which shortens the construction period and reduces the impact of weather on construction.

[0066] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A field-assembled connection structure for bridge deck slabs, characterized by: The utility model provides a prefabricated part of a bridge deck slab of a bridge, which comprises panel modules (1) made of UHPC material, the panel modules (1) are provided with a plurality of panel modules (1), the panel modules (1) comprise side blocks (11) and intermediate blocks (12), the two side blocks (11) are provided with first through holes (111) penetratingly formed on the side walls thereof facing away from each other, the side block (11) is provided with a second through hole (112) penetratingly formed on the side wall thereof on the side of the first through hole (111), the intermediate block (12) is arranged between the two side blocks (11), the intermediate block (12) is provided with a third through hole (121) penetratingly formed on the side wall thereof facing the side block (11), the third through hole (121) is aligned with the first through hole (111), the intermediate block (12) is provided with a fourth through hole (122) penetratingly formed on the two side walls thereof on the side of the third through hole (121), and the fourth through hole (122) is aligned with the second through hole (112). The first bidirectional screw rod (3) is arranged in the third through hole (121), the two ends of the first bidirectional screw rod (3) penetrate through the first through hole (111) and extend to the outside, the two ends of the first bidirectional screw rod (3) are provided with threads, the directions of rotation of the two threads are opposite, the two ends of the first bidirectional screw rod (3) are threadedly connected with first threaded sleeves (31), and the first threaded sleeves (31) are arranged on the two threads, respectively. The moving rods (4) are arranged in the fourth through holes (122), the two ends of the moving rods (4) penetrate through the second through holes (112) and extend to the outside, two fixed blocks (5) are arranged between the two adjacent moving rods (4), the two fixed blocks (5) are arranged on the opposite sides of the two side blocks (11), respectively, the fixed block (5) is provided with a cavity (51) penetratingly formed on the side walls thereof on the two sides, the two moving rods (4) penetrate through the cavities (51) and extend to the outside, the first gears (42) are fixedly arranged on the circumferential side walls of the two moving rods (4) in the cavities (51), the racks (511) are fixedly arranged on the inner walls of the two sides of the fixed block (5) in the cavities (51), and the first gears (42) are meshedly connected with the racks (511). The side wall of the side block (11) facing away from the intermediate block (12) is provided with a sliding groove (113) formed in the horizontal direction, the sliding groove (113) is formed between the first through hole (111) and the third through hole (121), the side of the side block (11) facing away from the intermediate block (12) is provided with telescopic rods (52), the telescopic rods (52) are slidably connected with the side block (11) along the length direction of the sliding groove (113), and the two ends of the two adjacent telescopic rods (52) away from the side block (11) are fixedly connected with the two sides of the fixed block (5), respectively.

2. The field-assembled connection of a bridge deck slab according to claim 1, characterized in that: Two adjacent mobile rods (4) are rotationally connected with second threaded sleeves (41) at one end away from the two fixed blocks (5), two adjacent second threaded sleeves (41) are provided with a second bidirectional screw (411) in the horizontal direction, the two ends of the second bidirectional screw (411) respectively penetrate through the two second threaded sleeves (41) and extend to both sides, and the two ends of the second bidirectional screw (411) are provided with two threads, the rotation directions of the two threads are opposite, and the two second threaded sleeves (41) are threadedly connected with the two threads of the second bidirectional screw (411). The second gear (43) and the third gear (32) are arranged between the edge block (11) and the middle block (12), the second gear (43) is fixedly arranged on the circumferential side wall of the mobile rod (4), and the third gear (32) is fixedly arranged on the circumferential side wall of the first bidirectional screw (3).

3. The field-assembled connection of a bridge deck panel according to claim 2, characterized in that: The side wall of the fixed block (5) away from the edge block (11) is fixedly provided with a placement plate (53), the upper surface of the placement plate (53) is provided with a rotating motor (531), the output shaft of the rotating motor (531) is fixedly provided with a first bevel gear (5311), the circumferential side wall of the second bidirectional screw (411) is fixedly provided with a second bevel gear (4111), and the first bevel gear (5311) is in meshing connection with the second bevel gear (4111).

4. The field-assembled connection of a bridge deck panel according to claim 3, characterized in that: Both sides of the panel module (1) are provided with first fixed plates (114), one end of the first fixed plate (114) is fixedly connected with the bottom of the edge block (11), the end of the first fixed plate (114) away from the edge block (11) is fixedly provided with a second fixed plate (1141) in the vertical direction, and the first fixed plate (114) and the edge block (11) are the cast-in-place groove (9).

5. The field-assembled connection of a bridge deck panel as defined in claim 4, wherein: The side wall bottom of the edge block (11) towards the middle block (12) is fixedly provided with a third fixed plate (115), the side wall bottom of the middle block (12) towards the edge block (11) is fixedly provided with a fourth fixed plate (123), the side surfaces of the third fixed plate (115) and the fourth fixed plate (123) away from each other are fixedly provided with first connecting plates (6), a first pair of tension bolts (61) is arranged between the two first connecting plates (6), the two ends of the first pair of tension bolts (61) penetrate through the two first connecting plates (6) and extend to both sides, and the two ends of the first pair of tension bolts (61) are threadedly connected with first nuts (611), and the edge block (11) and the middle block (12) are also the cast-in-place groove (9).

6. The field-assembled connection of a bridge deck panel according to claim 5, characterized in that: Two fifth fixed plates (116) are arranged between two adjacent edge blocks (11), the sides of the two fifth fixed plates (116) away from each other are fixedly connected with the edge blocks (11), the other sides of the two fifth fixed plates (116) are fixedly provided with second connecting plates (7), a second pair of tension bolts (71) is arranged between the two second connecting plates (7), the two ends of the second pair of tension bolts (71) penetrate through the two second connecting plates (7) and extend to both sides, and the two ends of the second pair of tension bolts (71) are threadedly connected with second nuts (711), and the two edge blocks (11) are also the cast-in-place groove (9).

7. The field-assembled connection of a bridge deck panel according to claim 6, characterized in that: Two sixth fixed plates (124) are arranged between the two adjacent intermediate blocks (12), the sides away from each other of the two sixth fixed plates (124) are fixedly connected with the intermediate blocks (12), the other sides of the two sixth fixed plates (124) are both fixedly provided with a third connecting piece (8), a third pair of tension bolts (81) are arranged between the two third connecting pieces (8), the two ends of the third pair of tension bolts (81) both penetrate through the two third connecting pieces (8) and stretch out to the two sides, and the two ends of the third pair of tension bolts (81) are both threadedly connected with a third nut (811), and the adjacent intermediate blocks (12) are also provided with the cast-in-place groove (9).

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