Connecting device for bridge construction and bridge construction method

Abstract

The invention relates to a connecting device for bridge construction and a bridge construction method. The connecting device comprises a prefabricated slab and a connecting assembly. The precast slab comprises a main body, side connecting ribs, end connecting ribs, an upper connecting plate and a lower connecting plate; side connecting ribs extending towards the two sides are arranged on the two sides of the main body, and the side connecting ribs on the two sides are arranged side by side in a staggered mode; corresponding steel bar holes are formed in the upper connecting plate and the lower connecting plate; the connecting assembly is used for connecting staggered side connecting ribs and comprises an upper connecting base, a fastening bolt, a lower connecting base, a first clamping base, a second clamping base and a damper. The upper connecting seat and the lower connecting seat are correspondingly arranged, the fastening bolt penetrates through the upper connecting seat and the lower connecting seat, and the upper connecting seat and the lower connecting seat can be combined and connected together; sliding blocks are arranged on the first clamping base and the second clamping base, and dampers are arranged between the sliding blocks and the upper connecting base and between the sliding blocks and the lower connecting base. According to the method, the site construction process is greatly simplified, site wet operation is reduced, and the bridge deck structure stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a connecting device for bridge construction and a bridge construction method. Background Art

[0002] During the bridge construction process, the bridge deck pavement, as an important part of the bridge structure, directly bears various dynamic loads during vehicle driving, and plays multiple roles in protecting the bridge deck from direct wear, dispersing wheel pressure, and providing a safe and smooth driving surface. Under the current trend of the country actively advocating prefabricated buildings, although prefabricated technology has made significant progress in the main beams and substructures of bridges, it has effectively improved construction efficiency and construction quality.

[0003] However, in the field of bridge deck paving, the traditional cast-in-place method still occupies a dominant position, and this situation needs to be changed urgently. Cast-in-place bridge deck paving not only requires a large amount of construction equipment, including mixer trucks, pump trucks, vibrators, etc., which increases the complexity and cost of on-site construction, but also its construction progress is easily restricted by multiple factors such as weather, material supply and technical proficiency of construction personnel, resulting in difficulty in accurately controlling the construction period and facing greater uncertainty in project quality. Therefore, strengthening the research and application of prefabricated bridge deck paving technology and developing new lightweight, high-strength and easy-to-install paving materials and systems have become key directions for improving the overall efficiency of bridge construction, shortening construction periods and ensuring project quality, which is of great significance for promoting the sustainable development of the bridge engineering industry.

[0004] The process of precast slab bridge deck paving involves fixed connections and telescopic movable connections. The current connection method has problems of integrity and low construction efficiency. Based on this, it is necessary to study a connection device and a bridge construction method for bridge construction. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a connecting device and a bridge construction method for bridge construction, which effectively solve the problems of low construction efficiency and complex connecting structure in the existing prefabricated slab bridge deck pavement structure.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a connection device for bridge construction, comprising a prefabricated plate and a connection assembly; the prefabricated plate comprises a main body, side connection ribs, end connection ribs, an upper connection plate and a lower connection plate; the two sides of the main body are provided with side connection ribs extending to the two sides, and the side connection ribs on the two sides are arranged side by side and staggered; the upper connection plate and the lower connection plate are respectively fixed to the upper part of one side and the lower part of the opposite side of the main body, and corresponding steel bar holes are arranged on the upper connection plate and the lower connection plate; the upper connection plate and the lower connection plate are respectively provided with positioning holes and positioning blocks; a clamping block is provided on one side of the main body, and a clamping slot is provided on the opposite side of the main body, the end connection rib passes through the positioning block and the clamping slot, and an avoidance slot for avoiding the end connection rib is provided on the clamping block; The connecting assembly is used to connect the dislocated side connecting ribs, and includes an upper connecting seat, a fastening bolt, a lower connecting seat, a first clamping seat, a second clamping seat and a damper; the upper connecting seat and the lower connecting seat are arranged correspondingly, the fastening bolts penetrate the upper connecting seat and the lower connecting seat, and the upper connecting seat and the lower connecting seat can be combined and connected together; the first clamping seat and the second clamping seat are both provided with sliders, and dampers are provided between the sliders and the upper connecting seat and the lower connecting seat; clamping grooves adapted to the side connecting ribs are provided on the first clamping seat and the second clamping seat; the upper first clamping seat corresponds to the lower first clamping seat, and the upper and lower clamping grooves form a closed clamping body.

[0007] Furthermore, a slide rod is fixed on both the upper connecting seat and the lower connecting seat, and the first clamping seat and the second clamping seat are respectively slidably mounted on the slide rod via corresponding sliding blocks.

[0008] Furthermore, a grouting hole is opened on the upper connecting plate. When the side connecting rib is clamped in the avoidance groove, a cavity exists between the upper connecting plate and the lower connecting plate, and the cavity is connected with the grouting hole.

[0009] Furthermore, ribs are provided on the outer periphery of the positioning seat so that there is a gap between the positioning seat and the positioning hole.

[0010] Furthermore, the steel bar holes are arranged on both sides of the upper connecting seat and the lower connecting seat, and the end connecting bars are arranged in the middle areas of the steel bar holes on both sides.

[0011] Furthermore, the damper is a viscous damper.

[0012] Furthermore, the clamping groove is a semicircular structure, and a friction surface is arranged in the semicircular groove body; the upper and lower clamping grooves are connected to form a circular clamping body adapted to the side connecting ribs.

[0013] Furthermore, corresponding ear plates are provided on the side surfaces of the upper first clamping seat and the lower first clamping seat, and the ear plates are reinforced and connected by bolts.

[0014] Furthermore, a countersunk hole is provided at the center of the upper connecting seat, and the end nut of the bolt is located in the countersunk hole.

[0015] A construction method of a connection device for bridge construction comprises the following steps: Step 1: During the bridge deck construction, multiple embedded reinforcement bars and positioning points are formed on the bridge deck according to the design drawings; then the bridge deck is leveled and cleaned; Step 2: hoist the prefabricated panels into the site, lower the prefabricated panels according to the positioning points, align the steel bar holes of the lower connecting plate with the embedded bars; and adjust the position of the prefabricated panels; Step 3: hoist the next prefabricated panel into the site, and gradually lower it from top to bottom, so that the steel bar hole of the upper connecting plate of the prefabricated panel corresponds to the embedded reinforcement, and the clamping block of the prefabricated panel corresponds to the clamping groove constructed in step 2, so that the clamping block is clamped on the end connecting reinforcement; at this time, the positioning block is in the positioning hole; Step 4, then install the positioning seat buckle on the positioning block; Step 5: Repeat steps 2 and 3; Step 6: inject mortar into the joint of the prefabricated panels through the grouting holes until it solidifies naturally, so that the gap between the upper connecting plate and the lower connecting plate is filled with mortar; Step 7, repeat steps 2 to 6 to construct the next row of precast panels, so that expansion joints exist between the precast panels on both sides; Step 8, assemble the connection components onto the side connection ribs on both sides; Step nine, fill the expansion joint with shock-absorbing material.

[0016] The beneficial effects of the above technical solution are as follows: based on the characteristics of bridge construction, the present invention needs to form expansion joints on the bridge deck, so the connection structure of the precast plate involves fixed connection and movable expansion connection. In order to ensure the connection effect, the present invention is provided with an upper connecting plate and a lower connecting plate at the end of the precast plate, and the upper connecting plate and the lower connecting plate are provided with corresponding steel bar holes. Embedded bars are pre-constructed on the main body of the bridge deck, and the steel bar holes are matched with the embedded bars, so that the precast plate can be more reliably assembled on the bridge deck, and the structure is more stable. In order to further improve the connection strength between the upper connecting plate and the lower connecting plate, that is, the first precast plate and the second precast plate, a positioning block is arranged on the lower connecting plate, and the assembling end connection bar on the positioning block is further passed through the slot to arrange the built-in bar for the connection between the two precast plates. By pouring concrete into the gap, the built-in bar is combined with the newly injected concrete as one, thereby improving the connection strength of the fixed connection.

[0017] For the movable telescopic connection on both sides, the present invention configures side connecting ribs on both sides of the main body, and the side connecting ribs on both sides are staggered and arranged to be combined and connected through a connecting component. In the specific structure, the connecting ribs are divided into an upper and lower structure. The two structures can be combined by fastening bolts, and clamping bodies that can clamp the side connecting ribs are formed on both sides respectively. The two clamping bodies can slide relative to the sliding rod and consume energy by squeezing the damper to achieve the purpose of telescopic energy dissipation.

[0018] The present invention greatly simplifies the on-site construction process and reduces on-site wet operations, such as concrete pouring, through the design of prefabricated panels and the modularization of connection components, thereby improving construction efficiency and shortening the construction period. The precise matching of positioning holes, positioning blocks and positioning seats ensures accurate docking between prefabricated panels, reduces construction errors, effectively prevents prefabricated panels from loosening or falling off during long-term use, and improves the safety of bridge use. At the same time, the grouting holes allow the connection to be filled with mortar through grouting, which enhances the integrity and sealing of the connection and improves the construction quality. Due to the modular design of the connection components, it can be more convenient to disassemble and reinstall during later maintenance or replacement, reducing maintenance costs and time; reducing on-site noise, dust and other pollution, and having less impact on the surrounding environment, which is conducive to environmental protection and civilized construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a prefabricated panel; Figure 2 for Figure 1 Schematic diagram of the main structure; Figure 3 for Figure 1 A schematic diagram of a top view structure; Figure 4 for Figure 1 Schematic diagram of the structure viewed from above; Figure 5 It is a combined state diagram of the present invention; Figure 6 This is a schematic diagram of the telescopic movable connection structure of the present invention; Figure 7 is a schematic diagram of the structure of the connection components; Figure 8 is a schematic diagram of the side view structure of the connection component; Fig. 9 A combined state diagram of connected components.

[0020] Figure markings: 1-main body, 2-upper connecting plate, 3-lower connecting plate, 4-rebar hole, 5-positioning hole, 6-block, 7-avoidance groove, 8-positioning block, 9-end connecting rib, 10-slot, 11-side connecting rib, 12-grouting hole, 13-upper connecting seat, 14-lower connecting seat, 15-fastening bolt, 16-first clamping seat, 17-second clamping seat, 18-slide rod, 19-limiting plate, 20-slider, 21-damper, 22-countersunk hole, 23-ear plate. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Embodiment 1. This embodiment aims to provide a connection device and a bridge construction method for bridge construction, which are mainly used for prefabricated bridge deck paving operations during the bridge construction process. In view of the problems of weak connection strength and complex structural construction of existing prefabricated board structures, this embodiment provides a modular prefabricated board and a bridge deck paving connection device for prefabricated bridge pavement paving.

[0022] Specific as Figure 1-4 As shown in the figure, a connection device for bridge construction includes a precast plate and a connection assembly; in this embodiment, the precast plate is a reinforced concrete precast part, which has a steel skeleton inside and is prefabricated and processed in a precast factory. Structurally, the ends of the precast plate can be spliced ​​and combined to achieve a fixed combined connection at the ends, while the sides are combined and connected through the connection assembly to achieve a movable damping telescopic connection.

[0023] The specific prefabricated panel includes a main body 1, side connecting ribs 11, end connecting ribs 9, an upper connecting plate 2 and a lower connecting plate 3; side connecting ribs 11 extending to both sides are arranged on both sides of the main body 1, and the side connecting ribs 11 on both sides are staggered and arranged side by side; during implementation, there is a steel skeleton inside the main body 1. During prefabrication, the side connecting ribs 11 are bundled on the steel skeleton and extended to the outside of the template. After the upper and lower templates are demolded, the prefabricated panel main body 1 is formed.

[0024] Corresponding steel bar holes 4 are set on the upper connecting plate 2 and the lower connecting plate 3. The steel bar holes 4 are set on both sides of the upper connecting seat and the lower connecting seat. There are two groups of steel bar holes, which are respectively set on both sides of the positioning block and the positioning hole. Each group has four steel bar holes. The end connecting ribs 9 are arranged in the middle area of ​​the steel bar holes 4 on both sides. The embedded ribs are assembled in the steel bar holes 4, and the side connecting ribs 11 are in the embedded ribs. The upper connecting plate 2 and the lower connecting plate 3 are used to limit the structure, so that the embedded plate is rooted in the bridge deck foundation.

[0025] Structurally, the upper connecting plate 2 and the lower connecting plate 3 are respectively fixed on the upper part of one side and the lower part of the opposite side of the main body 1. The upper and lower positions of this embodiment are the positions in the use state, that is, the upper connecting plate 2 and the lower connecting plate 3 are respectively located at the two ends of the main body 1. As standard parts, when spliced, the upper connecting plate 2 and the lower connecting plate 3 correspond to each other, and are jointly mounted on the embedded reinforcement by relying on the reinforcement holes.

[0026] In order to ensure the structural stability of the joint of the two prefabricated panels, positioning holes 5 and positioning blocks 8 are respectively provided on the upper connecting plate 2 and the lower connecting plate 3. The positioning block 8 is fixed on the lower connecting plate 3, and its structure is a block structure in the direction. The positioning hole 5 is opened on the upper connecting plate 2 and corresponds to the positioning block 8.

[0027] When combined, such as Figure 5-6 As shown in the figure, a card block 6 is provided on one side of the main body 1, and a card slot 10 is provided on the opposite side of the main body 1, the end connecting rib 9 passes through the positioning block 8 and the card slot 10, and an avoidance groove 7 for avoiding the end connecting rib 9 is provided on the card block 6; the avoidance groove 7 is an open downward structure. When combined, the two prefabricated panels are combined from top to bottom, and the upper connecting plate 2 is seated on the lower connecting plate 3 from top to bottom. At this time, the avoidance groove 7 is seated on the end connecting rib 9 from top to bottom, the card block 6 is in the card slot 10, and the positioning block 8 is in the positioning hole 5; in this embodiment, the structure of the positioning hole 5 and the positioning block 8 is a spaced matching structure.

[0028] A grouting hole 12 is provided on the upper connecting plate 2. When the side connecting rib 11 is clamped in the avoidance groove 7, a cavity exists between the upper connecting plate 2 and the lower connecting plate 3. The cavity is connected to the grouting hole, and concrete can be easily injected into the cavity through the grouting hole.

[0029] In this embodiment, after the two prefabricated panels are assembled, concrete mortar is injected between the upper connecting plate 2 and the lower connecting plate 3 so that the mortar fills the gap between the two prefabricated panels, that is, the concrete mortar fills the gap between the upper connecting plate 2 and the lower connecting plate 3, and enters the gap between the card slot 10 from the avoidance groove 7, and finally the gap between the positioning block 8 and the positioning hole 5 is filled, and then it can be leveled and solidified, thereby achieving the purpose of fixed splicing of the prefabricated panels.

[0030] In order to realize the movable telescopic connection of adjacent prefabricated panels, the present embodiment utilizes a connecting assembly to realize the movable telescopic connection of adjacent prefabricated panels. Specifically, the connecting assembly is used to connect the side connecting ribs 11 that are arranged on both sides of the prefabricated panels and are staggered. The basic principle is to clamp a side connecting rib 11 through a corresponding clamp seat, and configure an energy dissipation and damping structure between the two clamp seats to realize the purpose of movable telescopic connection of adjacent prefabricated panels.

[0031] The specific implementation structure is as follows Figure 7-8As shown in the figure, the connecting assembly includes an upper connecting seat 13, a fastening bolt 15, a lower connecting seat 14, a sliding rod 18, a first clamping seat 16, a second clamping seat 17 and a damper 21; the upper connecting seat 13 and the lower connecting seat 14 are arranged correspondingly, the fastening bolt 15 passes through the upper connecting seat 13 and the lower connecting seat 14, and can combine and connect the upper connecting seat 13 and the lower connecting seat 14 together; through this structure, the upper and lower clamping bodies 1 can be loosened, that is, they are clamped between the side connecting ribs 11 in a relaxed state, and in a clamped state, they are clamped and fixedly connected with the side connecting ribs 11 to achieve.

[0032] The slide bar 18 is fixed on the upper connecting seat 13 and the lower connecting seat 14. The first clamp seat 16 and the second clamp seat 17 are respectively mounted on the slide bar 18 through corresponding slider adapters. A limit plate 19 is arranged at the end of the slide bar 18 to connect the two slide bars 18 as a whole. The slide bar 18 serves to provide positioning for the sliding of the slider, and a damper 21 is arranged between the slider and the middle connecting seat, that is, between the slider and the upper connecting seat 13, and between the slider and the lower connecting seat 14. During implementation, the damper 21 can adopt a viscous damper 21; the slide bar 18 provides a sliding basis, and the slider 20 overcomes the resistance of the damper 21 through displacement during the sliding process along the slide bar 18, and achieves the purpose of energy dissipation.

[0033] Clamping grooves adapted to the side connecting ribs 11 are provided on the first clamping seat 16 and the second clamping seat 17; the upper first clamping seat 16 corresponds to the lower first clamping seat 16, and the upper and lower clamping grooves form a closed clamping body. In the process of connecting the upper connecting seat 13 and the lower connecting seat 14 in the middle, the clamping grooves approach each other and form a clamping body of the side connecting ribs 11. In order to improve the clamping effect, the clamping groove in this embodiment has a semicircular structure, and the upper and lower clamping grooves are connected to form a circular clamping body adapted to the side connecting ribs 11. A friction surface is provided in the semicircular groove body to achieve the clamping and fixing effect of the clamping groove and the side connecting ribs 11.

[0034] This embodiment provides a construction method of a connection device for bridge construction, with respect to the above device, comprising the following steps: Step 1: During the bridge deck construction, multiple embedded reinforcement bars and positioning points are formed on the bridge deck according to the design drawings; then the bridge deck is leveled and cleaned; Step 2: hoist the prefabricated board into the site, lower the prefabricated board according to the positioning point, and make the steel bar hole 4 of the lower connecting plate 3 correspond to the embedded steel bar; and adjust the position of the prefabricated board; Step 3: hoist the next prefabricated panel into the site, and gradually lower it from top to bottom, so that the steel bar hole 4 of the upper connecting plate 2 of the prefabricated panel corresponds to the embedded reinforcement, and the clamping block 6 of the prefabricated panel corresponds to the clamping groove 10 constructed in step 2, so that the clamping block 6 is clamped on the end connecting reinforcement 9; at this time, the positioning block 8 is in the positioning hole 5; Step 4, then install the positioning seat buckle on the positioning block 8; Step 5: Repeat steps 2 and 3; Step 6: inject mortar into the joint of the prefabricated panels through the grouting holes until it solidifies naturally, so that the gap between the upper connecting plate 2 and the lower connecting plate 3 is filled with mortar; Step 7, repeat steps 2 to 6 to construct the next row of precast panels, so that expansion joints exist between the precast panels on both sides; Step eight, assemble the connection components onto the side connection ribs 11 on both sides; Step nine, fill the expansion joint with shock-absorbing material.

[0035] This embodiment significantly improves the connection stability between the precast panel and the bridge deck body 1 by arranging an upper connecting plate 2 and a lower connecting plate 3 at the ends of the precast panel and designing corresponding steel bar holes 4 to match the embedded bars of the bridge deck body 1, thereby making the installation of the precast panel on the bridge deck more reliable and reducing the safety hazards caused by loose connections.

[0036] Positioning blocks 8 are arranged on the lower connecting plate 3, and the connection strength between the precast panels is further enhanced by the structure of the end connecting ribs 9 and the built-in ribs, combined with the pouring of concrete. The close combination of the built-in ribs and the concrete not only improves the overall rigidity of the connection, but also enhances its shear and tensile resistance, thereby extending the service life of the bridge.

[0037] In response to the needs of bridge deck expansion joints, this embodiment configures side connecting ribs 11 on both sides of the main body 1, and adopts the design of staggered settings and connecting components to achieve a movable expansion connection. This design allows the bridge deck to expand and contract to a certain extent under the effects of temperature changes, vehicle loads, etc., effectively avoiding cracking or damage to the bridge deck caused by thermal expansion and contraction or load effects.

[0038] Improve telescopic energy dissipation effect: By designing a clamping body 1 that can slide relative to the slide rod 18 and arranging an extrusion damper 21 therein, the present invention not only realizes the telescopic function, but also has a good energy dissipation effect. When the bridge deck is telescoped, the extrusion damper 21 can absorb and consume part of the energy, reducing the impact and vibration on the bridge structure, and improving the comfort and safety of the bridge.

[0039] The connection structure of this embodiment is reasonably designed, the construction steps are clear, and it is easy to operate on site. Through the standardized production and on-site assembly of prefabricated parts, the construction efficiency can be greatly improved, the construction period can be shortened, and the construction cost can be reduced.

[0040] Embodiment 2: This embodiment further illustrates the movable telescopic connection structure of the prefabricated panels.

[0041] like Fig. 9As shown in the figure, corresponding ear plates 23 are provided on the sides of the upper first clamping seat 16 and the lower first clamping seat 16, and the ear plates are reinforced and connected by bolts to improve the clamping and fixing effect from both sides; at the same time, a countersunk hole 22 is provided in the center of the upper connecting seat 13, and the end nut of the fastening bolt 15 is in the countersunk hole to prevent the fastening bolt 15 from extending too long.

[0042] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is that the ends of the prefabricated panels can be spliced ​​and combined to achieve a fixed combination connection of the ends, and the sides are combined and connected through connecting components to achieve a movable damping telescopic connection. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A connection device for bridge construction, characterized in that: It comprises a prefabricated plate and a connection assembly; the prefabricated plate comprises a main body, side connection ribs, end connection ribs, an upper connection plate and a lower connection plate; the two sides of the main body are provided with side connection ribs extending to the two sides, and the side connection ribs on the two sides are arranged side by side and staggered; the upper connection plate and the lower connection plate are respectively fixed to the upper part of one side and the lower part of the opposite side of the main body, and corresponding steel bar holes are arranged on the upper connection plate and the lower connection plate; the upper connection plate and the lower connection plate are respectively provided with positioning holes and positioning blocks; a clamping block is provided on one side of the main body, and a clamping slot is provided on the opposite side of the main body, the end connection ribs penetrate the positioning block and the clamping slot, and an avoidance slot for avoiding the end connection ribs is provided on the clamping block; The connecting assembly is used to connect the dislocated side connecting ribs, and includes an upper connecting seat, a fastening bolt, a lower connecting seat, a first clamping seat, a second clamping seat and a damper; the upper connecting seat and the lower connecting seat are arranged correspondingly, the fastening bolts penetrate the upper connecting seat and the lower connecting seat, and the upper connecting seat and the lower connecting seat can be combined and connected together; the first clamping seat and the second clamping seat are both provided with sliders, and dampers are provided between the sliders and the upper connecting seat and the lower connecting seat; clamping grooves adapted to the side connecting ribs are provided on the first clamping seat and the second clamping seat; the upper first clamping seat corresponds to the lower first clamping seat, and the upper and lower clamping grooves form a closed clamping body.

2. The connection device for bridge construction according to claim 1, characterized in that: The upper connecting seat and the lower connecting seat are both fixed with a sliding rod, and the first clamping seat and the second clamping seat are respectively adapted and slidably sleeved on the sliding rod through corresponding sliding blocks.

3. The connection device for bridge construction according to claim 2, characterized in that: A grouting hole is provided on the upper connecting plate. When the side connecting rib is clamped in the avoidance groove, a cavity is provided between the upper connecting plate and the lower connecting plate, and the cavity is communicated with the grouting hole.

4. The connection device for bridge construction according to claim 2, characterized in that: The outer periphery of the positioning seat is provided with ribs so that there is a gap between the positioning seat and the positioning hole.

5. The connection device for bridge construction according to claim 2, characterized in that: The steel bar holes are arranged on both sides of the upper connecting seat and the lower connecting seat, and the end connecting bars are arranged in the middle areas of the steel bar holes on both sides.

6. The connection device for bridge construction according to claim 1, characterized in that: The damper is a viscous damper.

7. The connection device for bridge construction according to claim 1, characterized in that: The clamping groove is a semicircular structure, and a friction surface is arranged in the semicircular groove body; the upper and lower clamping grooves are butted together to form a circular clamping body adapted to the side connecting ribs.

8. The connection device for bridge construction according to claim 1, characterized in that: Corresponding ear plates are arranged on the side surfaces of the upper first clamping seat and the lower first clamping seat, and the ear plates are reinforced and connected by bolts.

9. The connection device for bridge construction according to claim 1, characterized in that: A countersunk hole is arranged at the center of the upper connecting seat, and the end nut of the bolt is located in the countersunk hole.

10. The construction method of the connection device for bridge construction according to claim 1, characterized in that: The method comprises the following steps: Step 1: During the bridge deck construction, multiple embedded reinforcement bars and positioning points are formed on the bridge deck according to the design drawings; then the bridge deck is leveled and cleaned; Step 2: hoist the prefabricated panels into the site, lower the prefabricated panels according to the positioning points, align the steel bar holes of the lower connecting plate with the embedded bars; and adjust the position of the prefabricated panels; Step 3: hoist the next prefabricated panel into the site, and gradually lower it from top to bottom, so that the steel bar hole of the upper connecting plate of the prefabricated panel corresponds to the embedded reinforcement, and the clamping block of the prefabricated panel corresponds to the clamping groove constructed in step 2, so that the clamping block is clamped on the end connecting reinforcement; at this time, the positioning block is in the positioning hole; Step 4, then install the positioning seat buckle on the positioning block; Step 5: Repeat steps 2 and 3; Step 6: inject mortar into the joint of the prefabricated panels through the grouting holes until it solidifies naturally, so that the gap between the upper connecting plate and the lower connecting plate is filled with mortar; Step 7, repeat steps 2 to 6 to construct the next row of precast panels, so that expansion joints exist between the precast panels on both sides; Step 8, assemble the connection components onto the side connection ribs on both sides; Step nine, fill the expansion joint with shock-absorbing material.

Images