Steel-concrete composite beam bridge deck slab continuous construction device and construction method

Abstract

The application is a kind of steel-concrete composite beam bridge deck slab continuous construction device and construction method, the device comprises a suspension support system, a track system, a trolley system, a sliding beam hanger system and a formwork system; the track system is installed on the cast bridge deck slab of the steel-concrete composite beam, the suspension support system can be slidably installed on the track system and the steel beam of the steel-concrete composite beam along the bridge direction, the sliding beam hanger system is suspendedly installed below the suspension support system and the cast bridge deck slab, the trolley system can be slidably installed on the suspension support system along the bridge direction, and the formwork system is suspendedly installed at the bottom of the suspension support system. The application does not need to occupy the space under the bridge during construction, is efficient, safe and reliable, effectively improves the cast-in-place construction efficiency of the steel-concrete composite beam bridge deck slab, reduces the construction cost, and reduces the interference to the existing facilities.

Description

Technical Field

[0001] This invention relates to the technical field of bridge engineering, and in particular to a continuous construction device and method for steel-concrete composite beam bridge decks. Background Technology

[0002] With the continuous development of urbanization and transportation infrastructure, steel-concrete composite beam structures are widely used in bridge engineering due to their superior load-bearing capacity and adaptability to long span requirements. However, the cast-in-place construction of steel-concrete composite beam bridge decks still faces many technical challenges and limitations in actual engineering projects.

[0003] Existing bridge deck construction support systems, such as traditional full-span scaffolding, beam-column supports, triangular cantilever supports formed by welded steel sections, and cantilever beam hangers, generally suffer from problems such as occupying space under the bridge, complex construction, and difficulty in dismantling the supports. These traditional support structures not only require a large amount of manpower and resources, but are also easily restricted by existing lines and terrain, affecting construction efficiency, increasing construction costs, and posing safety hazards, especially in bridge projects that cross existing roads, rivers, or railways.

[0004] Furthermore, due to the limitations of the scaffolding system, current construction methods often fail to achieve continuous and efficient cast-in-place construction of bridge decks. This is especially true for steel-concrete composite beam bridge deck construction, which is highly dependent on the space under the bridge. The erection and dismantling of scaffolding is cumbersome, leading to extended construction periods and low efficiency. Summary of the Invention

[0005] This invention aims to address the shortcomings of existing technologies by providing a continuous construction device and method for steel-concrete composite beam bridge decks. It is a bridge deck support solution that does not require occupying space under the bridge, and is highly efficient, safe, and reliable. This effectively improves the efficiency of cast-in-place construction of steel-concrete composite beam bridge decks, reduces construction costs, and minimizes interference with existing facilities.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A continuous construction device for steel-concrete composite beam bridge deck includes a suspension support system, a track system, a trolley system, a sliding beam hanger system, and a formwork system;

[0008] The track system is installed on the cast-in-place bridge deck of the steel-concrete composite beam. The suspension support system can be slidably installed on the track system and the steel beams of the steel-concrete composite beam along the bridge direction. The sliding beam hanger system is suspended and installed below the suspension support system and the cast-in-place bridge deck. The trolley system can be slidably installed on the suspension support system along the bridge direction. The formwork system is suspended and installed at the bottom of the suspension support system.

[0009] The suspension support system includes main longitudinal beams, main transverse beams, first uprights, second uprights, diagonal braces, first suspension rod system, outer formwork crossbeams, inner formwork crossbeams, and stop blocks;

[0010] There are two main longitudinal beams. The top two ends of the main longitudinal beams are equipped with stops. One end of the bottom of the main longitudinal beam is slidably supported on the track system by the first column, and the other end of the bottom of the main longitudinal beam is slidably supported on the steel beam by the second column. Diagonal bracing is provided between the second column and the main longitudinal beam. Several main transverse beams are perpendicularly intersected by the two main longitudinal beams. Each main transverse beam is disconnected from the main longitudinal beam at the intersection and is welded to the main longitudinal beam. Several first suspension rod systems are provided on each main transverse beam. The outer formwork transverse beam is suspended on the first suspension rod system corresponding to the main transverse beam outside the main longitudinal beam, and the inner formwork transverse beam is suspended on the first suspension rod system corresponding to the main transverse beam between the two main longitudinal beams.

[0011] The base of both the first and second columns is equipped with a supporting steel plate, and the bottom of the supporting steel plate is equipped with a U-shaped polytetrafluoroethylene plate; the bottom of the supporting steel plate of the first column is equipped with a stiffening anti-detachment steel plate on both sides of the track system, and the stiffening anti-detachment steel plate is equipped with a limiting bolt; the supporting steel plate and the U-shaped polytetrafluoroethylene plate of the second column are provided with slots for shear nails to pass through.

[0012] The second column has a pull ring on the front side.

[0013] The outer formwork beams are L-shaped, while the inner formwork beams are straight.

[0014] The track system includes track beams, sleepers, and reaction frames;

[0015] There are two track beams, which are set on the cast-in-place bridge deck. The sleepers are set between the cast-in-place bridge deck and the track beams. The reaction frame consists of a crossbeam and two sets of tie rods. The crossbeam is supported on the track beam. One end of the tie rod passes through the top of the crossbeam and is fixed with a nut, and the other end passes through the bottom of the cast-in-place bridge deck and is fixed with a nut.

[0016] The trolley system includes a main frame, trolley beams, a work platform, guardrails, and ladders;

[0017] The main frame has an n-shaped structure. The bottom of the vertical columns on both sides of the main frame is connected to the working platform. The working platform is surrounded by guardrails. Ladders are installed on the inside of the vertical columns on both sides of the main frame. The trolley beam is vertically connected to the transverse beam at the top of the main frame. The bottom ends of the trolley beam are equipped with "π"-shaped connecting seats. Rollers are installed between the two side plates of the "π"-shaped connecting seats and the rollers are rolled on the main longitudinal beam. Limiting bolts are installed on the side plates of the "π"-shaped connecting seats and are engaged below the upper flange plate of the main longitudinal beam.

[0018] The sliding beam hanger system includes a sliding beam, a second suspension system, and lifting rings;

[0019] The upper end of the second suspender system is fixed to the cast-in-place bridge deck and main crossbeam by nuts and washers. The lower end of the second suspender system is connected to the suspending ring by nuts. The suspending ring is a rectangular frame structure. There are upper limit posts and lower rollers between the two side plates of the suspending ring. There are support wheels at both ends of the lower rollers. The sliding beam is slidably installed on the support wheels of the three sets of suspending rings. The upper limit posts are located above the sliding beam.

[0020] The formwork system includes timber and formwork, which are connected together by nails. The timber and formwork are erected on the outer formwork beams and the inner formwork beams.

[0021] The construction method of the above-mentioned continuous construction device for steel-concrete composite beam bridge deck includes the following specific steps:

[0022] S1. Design the device. Based on the mechanical analysis, design and determine the dimensions of each component and the thickness of each steel plate.

[0023] S2. Process and manufacture the various components of the device in the factory, and then transport them to the construction site after processing.

[0024] S3. Assemble the components on the ground according to the system, and then use a truck crane to lift each system onto the steel beam for fixed assembly;

[0025] S4. Install the template system;

[0026] S5. Tie the reinforcing bars of the bridge deck to be constructed;

[0027] S6. Pour concrete and cure it;

[0028] S7. After the concrete of the poured bridge deck reaches the expected strength, workers climb down the ladder of the main frame on the trolley system to the working platform, operate to dismantle the formwork system and outer formwork beams under the flange of the poured bridge deck, and lower them together onto the trolley beam; the formwork system and inner formwork beams inside the steel beam box are dismantled by workers inside the box; all first hanger systems are dismantled.

[0029] S8. Lay sleepers and track beam segments on the poured bridge deck. The track beam segments are bolted together and the track beams are fixed with reaction frames.

[0030] S9. Install a reaction tripod and chain hoist in front of the steel beam. Connect the chain hoist hook to the pull ring on the second column. Loosen the limit bolt on the first column base. Operate the chain hoist to drive the suspension support system, trolley system, sliding beam hanger system, and the template system and outer template beam placed on the sliding beam to move forward together until the predetermined position. Then tighten the limit bolt on the first column base.

[0031] S10. Remove the chain hoist and reaction tripod, and install the first suspension system, the second suspension system, and the formwork system;

[0032] S11. Repeat steps S5 to S10 until the construction of the bridge deck on all steel-concrete composite beams is completed.

[0033] S12. A truck crane will be used in conjunction with the demolition equipment to carry out the final bridge deck ancillary construction.

[0034] The beneficial effects of this invention are: it does not require the space under the bridge, is efficient and safe to construct, effectively improves the efficiency of cast-in-place construction of steel-concrete composite beam bridge deck, reduces construction costs, and minimizes interference with existing facilities. Attached Figure Description

[0035] Figure 1 This is a three-dimensional view of an embodiment of the present invention;

[0036] Figure 2 This is an elevation view showing the overall annotations of each component in an embodiment of the present invention;

[0037] Figure 3 This is an elevation view showing the detailed structural annotations of each component in an embodiment of the present invention;

[0038] Figure 4 This is a cross-sectional view (II) of an embodiment of the present invention;

[0039] Figure 5 This is an embodiment of the present invention. Figure 3 The A-size sample drawing in the middle;

[0040] Figure 6 This is an embodiment of the present invention. Figure 3 Detail B in the drawing;

[0041] Figure 7 This is a detailed view of the base of the second column in an embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of step S5 in an embodiment of the present invention;

[0043] Figure 9 This is a schematic diagram of step S6 in an embodiment of the present invention;

[0044] Figure 10 This is a schematic diagram of step S7 in an embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of step S8 in an embodiment of the present invention;

[0046] Figure 12 This is a schematic diagram of the suspension support system before it moves, which is step S9 of this embodiment of the invention.

[0047] Figure 13 This is a schematic diagram of the suspension support system after it has been moved in step S9 of this embodiment of the invention;

[0048] Figure 14 This is a schematic diagram of step S10 in an embodiment of the present invention;

[0049] In the picture:

[0050] 100 - Suspension support system; 200 - Track system; 300 - Trolley system; 400 - Sliding beam hanger system; 500 - Formwork system; 600 - Steel-concrete composite beam;

[0051] 101-Main longitudinal beam; 102-Main transverse beam; 103-First column; 104-Second column; 105-Diagonal brace; 106-First suspension system; 107-Outer formwork transverse beam; 108-Inner formwork transverse beam; 109-Stop block;

[0052] 201-Rail beam; 202-Sleeper; 203-Reaction frame;

[0053] 301-Main frame; 302-Pullover beam; 303-Work platform; 304-Guardrail; 305-Ladder;

[0054] 401 - Sliding beam; 402 - Second suspension system; 403 - Lifting ring;

[0055] 501 - Square timber; 502 - Template;

[0056] 601 - Steel beam; 602 - Cast-in-place bridge deck; 603 - Shear studs;

[0057] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0058] The principles and features of the present invention are described below with reference to the accompanying drawings. The embodiments given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0059] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0062] like Figure 1 , Figure 2 As shown, a continuous construction device for steel-concrete composite beam bridge deck is provided. The device includes a suspension support system 100, a track system 200, a pulley system 300, a sliding beam hanger system 400, and a formwork system 500.

[0063] The track system 200 is installed on the cast-in-place bridge deck 602 of the steel-concrete composite beam 600. The suspension support system 100 is installed on the track system 200 and the steel beam 601 of the steel-concrete composite beam 600. The sliding beam hanger system 400 is suspended below the suspension support system 100 and the cast-in-place bridge deck 602. The trolley system 300 is installed on the suspension support system 100. The formwork system 500 is suspended below the suspension support system 100.

[0064] like Figures 3 to 7 As shown, the suspension support system 100 includes a main longitudinal beam 101, a main transverse beam 102, a first column 103, a second column 104, a diagonal brace 105, a first suspension rod system 106, an outer formwork transverse beam 107, an inner formwork transverse beam 108, and a stop block 109.

[0065] The track system 200 includes track beam 201, sleeper 202 and reaction frame 203.

[0066] The trolley system 300 includes a main frame 301, a trolley beam 302, a work platform 303, a guardrail 304, and a ladder 305.

[0067] The sliding beam hanger system 400 includes a sliding beam 401, a second suspension rod system 402, and a lifting ring 403.

[0068] The template system 500 includes timber 501 and template 502.

[0069] The suspension support system 100 consists of a main longitudinal beam 101, a main cross beam 102, a first column 103, a second column 104, diagonal braces 105, a first suspension rod system 106, an outer formwork cross beam 107, an inner formwork cross beam 108, and stop blocks 109. Stop blocks 109 are provided at the upper parts of both ends of the main longitudinal beam 101 to prevent the trolley system 300 from falling off at either end when sliding on the main longitudinal beam 101. In this embodiment, there are two main longitudinal beams 101, arranged along the bridge direction. Each main longitudinal beam 101 is connected to a first column 103 and a second column 104. The main longitudinal beam 101 is supported on the track beam 201 of the track system 200 by the first column 103 and on the top of the steel beam 601 of the steel-concrete composite beam 600 by the second column 104. The main crossbeam 102 intersects perpendicularly with the two main longitudinal beams 101, breaks at the intersection with the main longitudinal beams 101, and is welded to the main longitudinal beams 101. In this embodiment, five main crossbeams are provided to meet the stress requirements of the suspended formwork system 500 and the sliding beam hanger system 400. A supporting steel plate is provided at the bottom of the first column 103, with a U-shaped polytetrafluoroethylene plate attached to the bottom and front and rear ends of the supporting steel plate to reduce the frictional effect of the column foot sliding on the track beam 201. Reinforcing anti-derailment steel plates are provided on both sides of the bottom steel plate of the first column 103, and limiting bolts are installed on the reinforcing anti-derailment steel plates to limit the longitudinal sliding of the suspended support system 100 during construction. A diagonal brace 105 is provided between the second column 104 and the main longitudinal beam 101 to improve overall stability. The lower part of the second column 104 has a forked slot to allow shear studs 603 at the top of the steel beam 601 to pass through. The base of the second column 104 is equipped with a supporting steel plate. A U-shaped polytetrafluoroethylene (PTFE) plate is attached to the bottom and front and rear ends of the supporting steel plate to reduce friction caused by the column base sliding on the top of the steel beam 601. A pull ring is provided on the front of the second column 104 for traction. Several first suspension rod systems 106 are installed on each main crossbeam 102. The upper ends of the first suspension rod systems 106 are hung on the main crossbeam 102, and the lower ends suspend the outer formwork crossbeam 107 and the inner formwork crossbeam 108. A short column, L-shaped in shape, is installed on the outer end of the outer formwork crossbeam 107 to support the side formwork.

[0070] The track system 200 consists of a track beam 201, sleepers 202, and a reaction frame 203. The track beam 201 is a standard segment that can be extended with bolts. The sleepers 202 are placed between the cast-in-place bridge deck 602 and the track beam 201 to support and level the track beam 201. The reaction frame 203 consists of a crossbeam and two sets of tie rods, used to fix the track beam 201.

[0071] The trolley system 300 consists of a main frame 301, a trolley beam 302, a working platform 303, guardrails 304, and ladders 305. The main frame 301 is a portal-shaped or n-shaped steel structure. Ladders 305 are installed on the inner sides of the vertical columns on both sides. The bottom of the columns connects to the working platform 303, which is surrounded by guardrails 304. The trolley beam 302 is vertically connected to the main frame 301. Pairs of reinforcing anti-derailment steel plates are installed at the bottom of both ends of the trolley beam 302, forming a "π"-shaped connecting seat. Anti-tipping limit bolts are installed on the outer steel plates, and rollers are installed between the reinforcing anti-derailment steel plates. The trolley system 300 is mounted on the main longitudinal beam 101 and can slide along the main longitudinal beam 101.

[0072] In this embodiment, two sets of sliding beam hanger systems 400 are installed under the flange of each side of the cast-in-place bridge deck 602. Each sliding beam hanger system 400 consists of a sliding beam 401, a second hanger system 402, and a lifting ring 403. The upper end of the second hanger system 402 is fixed to the cast-in-place bridge deck 602 or the main crossbeam 102 by a nut and a washer, and the lower end is connected to the lifting ring 403 by a nut. Each set of sliding beam hanger systems 400 includes three sets of second hanger systems 402 and lifting rings 403. The lifting ring 403 is a rectangular frame welded from steel plates. An upper limit post and a lower roller are provided between the two side plates of the lifting ring 403. Support wheels are provided at both ends of the lower roller. The sliding beam 401 is slidably installed on the support wheels of the three sets of lifting rings 403, with the upper limit post located above the sliding beam 401. The first set of second suspender systems 402 and 403 is suspended on the first main crossbeam 102, while the next two sets of second suspender systems 402 and 403 are suspended on the already poured bridge deck 602.

[0073] The formwork system 500 consists of square timber 501 and formwork 502, which are connected together by nails. The length of each section of square timber 501 and the block dimensions of the formwork 502 are determined based on the principle of easy assembly and disassembly of the formwork.

[0074] This invention also provides a method for constructing steel-concrete composite beam bridge decks using the aforementioned continuous construction device, such as... Figures 8 to 14 As shown, the specific steps include:

[0075] S1. Design the device. Based on the mechanical analysis, design and determine the dimensions of each component and the thickness of each steel plate.

[0076] S2. Process and manufacture the various components of the device in the factory, and then transport them to the construction site after processing.

[0077] S3. Assemble the components on the ground according to the system, and then use lifting equipment such as truck cranes to lift each system onto the steel beam for fixed assembly;

[0078] S4. Install template system 500;

[0079] S5. Tie the reinforcing bars of the bridge deck to be constructed;

[0080] S6. Pour concrete and cure it;

[0081] S7. After the concrete of the bridge deck 602 reaches the expected strength, workers climb down the ladder on the main frame 301 of the trolley system 300 to the work platform 303, and operate to remove the formwork under the flange of the bridge deck 602 and the outer formwork beam 107, and lower them together onto the sliding beam 401; the formwork and inner formwork beam 108 inside the steel beam 601 box are removed by workers inside the box; all first hanger systems 106 are removed;

[0082] S8. Lay sleepers 202 and segments of track beams 201 on the poured bridge deck 602. The segments of track beams 201 are connected together by bolts. The end of the extended track beams 201 is fixed by reaction frames 203.

[0083] S9. Install a reaction tripod and a chain hoist in front of the steel beam 601. Connect the chain hoist hook to the pull ring on the second column 104. Loosen the limit bolt on the column foot of the first column 103. Operate the chain hoist to drive the suspension support system 100, the trolley system 300, the sliding beam hanger system 400, the template system 500 placed on the sliding beam 401, and the outer template beam 107 to move forward together until the predetermined position. Then tighten the limit bolt on the column foot of the first column 103.

[0084] S10. Remove the chain hoist and reaction tripod, and install the first suspension system 106, the second suspension system 107, and the formwork system 500.

[0085] S11, repeat S5 to S10 until the construction of the bridge deck on all steel-concrete composite beams 600 is completed;

[0086] S12. Using cranes and other lifting equipment in conjunction with demolition devices, the bridge deck ancillary construction will be carried out last.

[0087] When constructing the deck of a steel-concrete composite beam bridge, the device of this invention allows for segmented and continuous construction, saving a significant amount of formwork support and manpower, making it ideal for the construction of long-line steel-concrete composite beams (600).

[0088] During the bridge deck pouring process, the device of the present invention supports the formwork system 500 of the bridge deck flange, avoiding the installation of triangular brackets on the web of the steel beam 601 and the erection of ground supports, thus neither damaging the steel beam 601 nor affecting the operation of the existing route under the bridge.

[0089] The device of the present invention has low manufacturing cost and can be reused, which can save a lot of construction costs.

[0090] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A continuous construction device for steel-concrete composite beam bridge deck, characterized in that, The system comprises a suspension support system (100), a track system (200), a trolley system (300), a sliding beam suspension system (400) and a formwork system (500); The track system (200) is installed on a cast bridge deck (602) of a steel-concrete composite beam (600), the suspension support system (100) is slidably installed along the bridge on the track system (200) and a steel beam (601) of the steel-concrete composite beam (600), the sliding beam suspension system (400) is suspendedly installed below the suspension support system (100) and the cast bridge deck (602), the trolley system (300) is slidably installed on the suspension support system (100) along the bridge, and the formwork system (500) is suspendedly installed at the bottom of the suspension support system (100); The suspension support system (100) comprises main longitudinal beams (101), main transverse beams (102), first vertical columns (103), second vertical columns (104), diagonal braces (105), first suspender systems (106), outer formwork transverse beams (107), inner formwork transverse beams (108) and stop blocks (109), the two main longitudinal beams (101) are provided with stop blocks (109) at the top ends thereof, one end of the bottom of each main longitudinal beam (101) is slidably supported on the track system (200) through the first vertical column (103), the other end of the bottom of each main longitudinal beam (101) is slidably supported on the steel beam (601) through the second vertical column (104), and the diagonal brace (105) is arranged between the second vertical column (104) and the main longitudinal beam (101); the two main longitudinal beams (101) are perpendicularly intersected by a plurality of main transverse beams (102), each main transverse beam (102) is disconnected at the intersection with the main longitudinal beam (101) and is welded to the main longitudinal beam (101); a plurality of first suspender systems (106) are arranged on each main transverse beam (102), the outer formwork transverse beam (107) is suspended on the corresponding first suspender system (106) of the main transverse beam (102) on the outside of the main longitudinal beam (101), and the inner formwork transverse beam (108) is suspended on the corresponding first suspender system (106) of the main transverse beam (102) between the two main longitudinal beams (101); The trolley system (300) comprises a main frame (301), a trolley beam (302), a working platform (303), a guardrail (304) and a ladder (305), the main frame (301) has an n-shaped structure, the vertical columns at the two sides of the main frame (301) are connected to the working platform (303) at the bottom, the working platform (303) is provided with the guardrail (304) around, the vertical columns at the two sides of the main frame (301) are provided with the ladder (305) on the inner side, the trolley beam (302) is perpendicularly connected to the horizontal beam at the top of the main frame (301), the trolley beam (302) is provided with a "π"-shaped connecting seat at the two ends of the bottom, rollers are arranged between the two side plates of the "π"-shaped connecting seat and are slidably installed on the main longitudinal beam (101), and limit bolts are arranged on the side plates of the "π"-shaped connecting seat and are clamped below the flange plate of the main longitudinal beam (101). The slide beam hanger system (400) comprises a slide beam (401), a second hanger system (402) and a hanger ring (403), the upper end of the second hanger system (402) is fixed on the cast bridge deck (602) and the main cross beam (102) through nuts and pads, the lower end of the second hanger system (402) is connected with the hanger ring (403) through nuts, the hanger ring (403) is a rectangular frame structure, upper limit posts and lower rollers are arranged between the two side plates of the hanger ring (403), support wheels are arranged at the two ends of the lower rollers, the slide beam (401) is slidably installed on the support wheels of the three hanger rings (403), and the upper limit posts are located above the slide beam (401).

2. The continuous construction device for a steel-concrete composite beam bridge deck slab according to claim 1, characterized in that, The bottom of the column foot of the first column (103) and the second column (104) is provided with a support steel plate, and the bottom of the support steel plate is provided with a U-shaped polytetrafluoroethylene plate; the bottom of the support steel plate of the first column (103) is provided with a stiffened anti-falling steel plate on the two sides of the track system (200), and a limiting bolt is arranged on the stiffened anti-falling steel plate; the support steel plate and the U-shaped polytetrafluoroethylene plate of the second column (104) are provided with a groove for the shear pin (603) to pass through.

3. The continuous construction device for a steel-concrete composite beam bridge deck slab according to claim 2, characterized in that, The front side of the second column (104) is provided with a pull ring.

4. The continuous construction device for a steel-concrete composite beam bridge deck slab according to claim 3, characterized in that, The outer formwork cross beam (107) is an L-shaped structure, and the inner formwork cross beam (108) is a "one" shaped structure.

5. The continuous construction device for a steel-concrete composite beam bridge deck slab according to claim 4, characterized in that, The track system (200) comprises a track beam (201), a track sleeper (202) and a counterforce frame (203); The track beam (201) is provided on the cast bridge deck (602) in two rows, the track sleeper (202) is arranged between the cast bridge deck (602) and the track beam (201), the counterforce frame (203) is composed of a cross beam and two sets of opposite pulling screws, one end of the opposite pulling screw penetrates through the top of the cross beam and is fixed through a nut, and the other end penetrates through the bottom of the cast bridge deck (602) and is fixed through a nut.

6. The continuous construction device for a steel-concrete composite beam bridge deck slab according to claim 5, characterized in that, The formwork system (500) comprises a square timber (501) and a formwork (502), the square timber (501) and the formwork (502) are connected into an integral whole through nails, and the square timber (501) and the formwork (502) are arranged on the outer formwork cross beam (107) and the inner formwork cross beam (108).

7. A method of constructing a steel-concrete composite beam bridge deck slab continuous construction apparatus as defined in claim 6, characterized by, The specific steps are: S1, device design, on the basis of mechanical analysis, the size of each component of the device and the thickness of each steel plate are determined; S2, each component of the device is processed and manufactured in the factory, and after processing, it is transported to the construction site; S3, the components are assembled on the ground according to the system, then a truck crane is used to hoist each system to the steel beam (601) for fixed assembly; S4, install the formwork system (500); S5, bind the steel bars of the bridge deck to be constructed; S6, pour concrete and maintain; S7, after the concrete of the cast bridge deck (602) reaches the expected strength, the workers descend from the ladder (305) of the main frame (301) on the trolley system (300) to the working platform (303), and operate the template system (500) under the flange of the cast bridge deck (602) and the outer template beam (107) to be lowered together to the sliding beam (401); the template system (500) in the box chamber of the steel beam (601) and the inner template beam (108) are removed by the workers in the box chamber; all the first suspender systems (106) are removed; S8, the sleeper (202) and the segment of the track beam (201) are laid on the cast bridge deck (602), the segments of the track beam (201) are connected into one body by bolts, and the track beam (201) is fixed by the counterforce frame (203); S9, the counterforce tripod and the chain are installed in front of the steel beam (601), the hook of the chain is connected with the pull ring on the second stand (104), the limiting bolt on the foot of the first stand (103) is loosened, the chain is operated to drive the suspension support system (100), the trolley system (300), the sliding beam hanger system (400) and the template system (500) and the outer template beam (107) placed on the sliding beam (401) to move forward together until the predetermined position, and then the limiting bolt on the foot of the first stand (103) is tightened; S10, the chain and the counterforce tripod are removed, and the first suspender system (106), the second suspender system (402) and the template system (500) are installed; S11, the steps S5 to S10 are cycled until the construction of the bridge deck on all the steel-concrete composite beams (600) is completed; S12, the automobile crane is used to cooperate with the removal device to finally perform the bridge deck auxiliary construction.

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