Straight web steel-concrete composite beam connecting structure and construction method thereof

Abstract

The invention relates to a straight web steel-concrete composite beam connecting structure and a construction method thereof, and belongs to the technical field of bridge engineering.The straight web steel-concrete composite beam connecting structure comprises a prefabricated bridge deck slab, a steel beam and a locking connecting assembly used for penetrating, locking and connecting the prefabricated bridge deck slab and the steel beam, and the locking connecting assembly comprises a connecting sleeve rod, a pressing rod, a pressing spring, a wedge-shaped block and a locking ball; a threaded hole for threaded connection of the connecting sleeve rod is formed in the steel beam, a connecting hole for insertion of the connecting sleeve rod is formed in the prefabricated bridge deck slab, the pressing rod is coaxially arranged in the connecting sleeve rod, the pressing spring is arranged on the pressing rod in a sleeving mode, and the wedge block is arranged at one end of the pressing rod. The locking ball is located between the pressing rod and the connecting sleeve rod and located between the pressing rod and the wedge-shaped block, the wedge-shaped block is provided with a wedge-shaped face, the wedge-shaped face abuts against the locking ball, and a locking hole for the locking ball to stretch out is formed in the connecting sleeve rod. The locking device has the advantages that locking connection operation is simple and convenient, the locking effect is good, the locking device is suitable for assembly construction, and meanwhile, disassembly and maintenance of the local prefabricated bridge deck slab are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of bridge engineering, and in particular to a straight web steel-concrete composite beam connection structure. Background Art

[0002] Steel-concrete composite beam refers to a bridge structure that connects steel beams and concrete bridge decks into a whole through shear connectors and takes into account the joint force. Steel-concrete composite beams have excellent mechanical properties and construction performance, good economy, and are suitable for small and medium span bridges.

[0003] At present, the steel beams and concrete bridge decks of composite beams are mostly prefabricated in the factory, and then the wet joints are cast on site. The steel beams and concrete decks are connected to work together as a whole through shear keys. Shear keys are the key structure for connecting steel beams and concrete beams. The concrete in the shear connection key area of ​​composite beams is cast on site, which is a bottleneck restricting the industrial assembly of composite beams. On the one hand, the quality of on-site casting is difficult to guarantee; on the other hand, when the concrete bridge deck is partially damaged, it is difficult to maintain and repair, and the replacement process is complicated. Summary of the invention

[0004] In order to improve the above problems, the present application provides a straight web steel-concrete composite beam connection structure.

[0005] The straight web steel-concrete composite beam connection structure provided in this application adopts the following technical solution: A straight web steel-concrete composite beam connection structure, comprising a prefabricated bridge deck, a steel beam and a locking connection assembly for penetrating and locking the prefabricated bridge deck and the steel beam, the locking connection assembly comprising a connecting sleeve, a pressing rod, a pressing spring, a wedge block and a locking ball, the steel beam is provided with a threaded hole for threaded connection of the connecting sleeve, the prefabricated bridge deck is provided with a connecting hole for inserting the connecting sleeve, the pressing rod is coaxially arranged in the connecting sleeve, the pressing spring is sleeved on the pressing rod, the wedge block is arranged at one end of the pressing rod, the locking ball is located between the pressing rod and the connecting sleeve and the locking ball is located between the pressing rod and the wedge block, the wedge block is provided with a wedge surface, the wedge surface is abutted against the locking ball, and the connecting sleeve is provided with a locking hole for the locking ball to extend out.

[0006] Preferably, a pressing block is provided at one end of the pressing rod away from the wedge block, an abutting step is provided in the connecting sleeve rod, one end of the pressing spring abuts against the abutting step, and the other end of the pressing spring abuts against the pressing block.

[0007] Preferably, a limit step is provided in the connecting sleeve rod, and the pressing block abuts against the limit step after being pressed and moved.

[0008] Preferably, a connecting rod is provided between the pressing rod and the wedge block, the diameter of the connecting rod is smaller than the diameter of the pressing rod, and a placement space is formed between the outer peripheral wall of the connecting rod and the inner peripheral wall of the connecting sleeve rod, and the placement space is used to place a locking ball.

[0009] Preferably, an anti-slip ring is provided along the circumference of one end of the wedge-shaped block away from the connecting rod.

[0010] Preferably, it also includes a driving component for driving the pressing rod to move, the driving component includes a driving seat, a driving slide bar, a driving slider and a driving push rod, the driving seat is connected to the steel beam, the driving slide bar is slidably connected to the driving seat, the driving slide bar slides along the length direction of the steel beam, the driving slide bar is connected to the driving slide bar, and the driving slide bar is wedge-shaped, the driving push rod is slidably arranged in the driving seat, and the sliding direction of the driving push rod is perpendicular to the sliding direction of the driving slide bar, one end of the driving push rod is provided with a return spring, and the end of the return spring away from the driving push rod is fixedly connected to the driving seat, one end of the driving push rod is against the wedge surface of the wedge block, and the other end extends out of the driving seat and against the pressing block.

[0011] Preferably, the driving seat is provided with a moving hole for the driving rod to slide, and at least two return springs are provided, and at least two return springs are symmetrically arranged on both sides of the driving slider.

[0012] Preferably, it also includes a limiting member for limiting the driving slide bar, the limiting member includes a limiting connecting plate and a limiting plug rod, the limiting connecting plate is connected to the driving slide bar, a first limiting hole is formed on the limiting connecting plate, a second limiting hole is formed on the driving seat, the limiting plug rod is arranged in the limiting connecting plate, the limiting plug rod drives the limiting connecting plate and the driving slide bar to move, the limiting plug rod is rotated to align the limiting plug rod with the second limiting hole, the limiting plug rod passes through the second limiting hole and then rotates to reset, and the limiting plug rod abuts against the side of the driving seat away from the limiting connecting plate.

[0013] Preferably, it also includes a clamping assembly for clamping the driving seat and the steel beam, the clamping assembly includes a clamping seat, a first clamping plate and a second clamping plate, the clamping seat is arranged on the driving seat, a sliding groove is opened on the clamping seat, a clamping screw is rotatably connected to the clamping seat and the clamping screw is located in the sliding groove, the clamping screw is a double-threaded screw, the first clamping plate and the second clamping plate are both threadedly connected to the clamping screw, and the clamping screw rotates to drive the first clamping plate and the second clamping plate to move toward or away from each other synchronously.

[0014] Preferably, a construction method of a straight web steel-concrete composite beam connection structure using any one of the above items comprises the following steps: The steel beam is provided with threaded holes; Prefabricate and connect the locking connection assembly to the steel beam; The prefabricated bridge deck is provided with a connection hole; Installing the drive assembly on a steel beam; The driving assembly presses the pressing rod to enter a ready state; Hoisting the prefabricated bridge deck onto the steel beam and aligning the connection hole with the threaded hole; The driving assembly drives the pressing rod to reset, and the locking connection assembly locks the steel beam and the prefabricated bridge deck.

[0015] The present application includes at least one of the following beneficial technical effects: 1. Connect the locking connection assembly to the steel beam, align the prefabricated bridge deck and the steel beam according to the designed position, extend the connecting rod into the connecting hole of the prefabricated bridge deck, and then drive several pressing rods to extend and move toward the prefabricated bridge deck synchronously through the driving assembly, so that the steel beam and the prefabricated bridge deck are tightly attached, and the pressing rod is naturally reset under the elastic force of the pressing spring, and the locking ball extends out of the locking hole synchronously, so that the connecting rod and the entire locking connection assembly are locked with the prefabricated bridge deck, thereby realizing the locking of the steel beam and the prefabricated bridge deck. If it is necessary to replace the partial prefabricated bridge deck, the locking connection between the prefabricated bridge deck and the steel beam can be released by pressing the pressing rod to drive the locking ball to retract into the locking hole. The operation is simple and convenient, the locking effect is good, and it is very suitable for assembly construction, and it is also convenient for the disassembly, replacement and maintenance of the partial prefabricated bridge deck; 2. Before the prefabricated bridge deck is connected to the steel beam, the driving rod synchronously presses the pressing rod, so that the locking connection assembly is in a preparatory state. When the prefabricated bridge deck is fitted with the steel beam, the connecting sleeve rod is inserted into the connecting hole to drive the sliding rod to move, driving the driving rod to reset, and then driving the pressing rod to reset, so that the locking ball extends out of the locking hole to achieve a locking connection. Through the setting of the driving assembly, multiple locking connection assemblies can be locked synchronously, which is simple and convenient to operate and improves efficiency. 3. In order to facilitate the relative fixation between the driving seat and the steel beam, the clamping screw is rotated to drive the first clamping plate and the second clamping plate to move toward each other synchronously and clamp the steel beam. The operation is simple, convenient and reusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure used to reflect the connection structure of the straight web steel-concrete composite beam in the embodiment of the present application.

[0017] Figure 2 It is a structural schematic diagram used to reflect the locking connection component and the driving component in the embodiment of the present application.

[0018] Figure 3 yes Figure 2 A partial enlarged view of part A in the middle.

[0019] Figure 4 It is a schematic diagram of the structure of the clamping assembly and the limiting member in the embodiment of the present application.

[0020] Description of the accompanying drawings: 1. Prefabricated bridge deck; 11. Connection hole; 2. Steel beam; 21. Threaded hole; 3. Locking connection assembly; 31. Connecting sleeve rod; 311. Limiting card step; 312. Abutting card step; 313. Locking hole; 32. Pressing rod; 33. Pressing block; 34. Connecting rod; 35. Wedge block; 351. Wedge surface; 36. Locking ball; 37. Pressing spring; 38. Anti-slip ring; 4. Driving Moving assembly; 41, driving seat; 411, second limiting hole; 42, driving slide rod; 43, driving slider; 44, driving push rod; 45, reset spring; 6, limiting member; 61, limiting connecting plate; 62, limiting plug rod; 7, clamping assembly; 71, clamping seat; 72, clamping screw; 73, rotating handle; 74, first clamping plate; 741, first clamping block; 75, second clamping plate; 751, second clamping block. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses a straight web steel-concrete composite beam connection structure, such as Figure 1 As shown, it includes a prefabricated bridge deck 1, a steel beam 2 and a locking connection component 3 for penetrating and locking the prefabricated bridge deck 1 and the steel beam 2. The prefabricated bridge deck 1 is a concrete deck, and the steel beam 2 can be an I-beam 2.

[0023] like Figure 2 and 3 As shown, the locking connection assembly 3 includes a connecting sleeve rod 31, a pressing rod 32, a pressing spring 37, a wedge block 35 and a locking ball 36. One end of the pressing rod 32 is fixedly connected to the pressing block 33. A limit step 311 is provided in the connecting sleeve rod 31 for the pressing block 33 to abut against. An abutting step 312 is also provided in the connecting sleeve rod 31. The pressing spring 37 is sleeved on the pressing rod 32. One end of the pressing spring 37 abuts against the abutting step 312. The other end of the pressing spring 37 abuts against the pressing block 33. The end of the pressing rod 32 away from the pressing block 33 is fixedly connected to the connecting rod 34. The diameter of the connecting rod 34 is smaller than the diameter of the pressing rod 32. The wedge block 35 is fixedly connected to the end of the connecting rod 34 away from the pressing rod 32. The wedge block 35 is provided with a wedge surface 351. A placement space is formed between the outer peripheral wall of the connecting rod 34 and the inner peripheral wall of the connecting sleeve rod 31, and the placement space is used to place the locking ball 36, and the locking ball 36 abuts against the wedge surface 351. A locking hole 313 is provided on the peripheral wall of the connecting sleeve rod 31 for the locking ball 36 to extend out. In order to further improve the stability of the locking ball 36 during use, an anti-slip ring 38 is fixedly connected to the peripheral surface of one end of the wedge block 35 away from the connecting rod 34.

[0024] like Figure 1 and 2 As shown, in order to facilitate the locking connection operation, the steel beam 2 is provided with a threaded hole 21 for the connection sleeve 31 to be threadedly connected, and the precast bridge deck 1 is provided with a connection hole 11 for the connection sleeve 31 to be inserted. In this embodiment, each single precast bridge deck 1 is connected to two steel beams 2, each single precast bridge deck 1 is provided with twelve connection holes 11, and each single steel beam 2 and each single precast bridge deck 1 are provided with six threaded holes 21 at corresponding positions.

[0025] like Figure 2 and 3 As shown, in order to facilitate the synchronous operation of multiple locking connection components 3, the connection structure also includes a driving component 4, which includes a driving seat 41, a driving slide rod 42, a driving slider 43 and a driving lever 44. A driving slide groove is provided on the driving seat 41 along the length direction of the steel beam 2. The driving slide rod 42 is located in the driving slide groove and is slidably connected to the driving seat 41. Two driving slide rods 42 are provided on each driving seat 41. The driving slider 43 is fixedly connected to the driving slide rod 42 and the driving slider 43 is wedge-shaped. Three driving sliders 43 are connected to each single driving slide rod 42. A moving hole for the driving lever 44 to slide is provided on the driving seat 41. A return spring 45 is fixedly connected to one end of the driving lever 44. The end of the return spring 45 away from the driving lever 44 is fixedly connected to the driving seat 41. At least two return springs 45 are provided, and at least two return springs 45 are symmetrically arranged on both sides of the driving slider 43. In this embodiment, two return springs 45 are provided. One end of the driving rod 44 abuts against the wedge surface of the wedge block 35 , and the other end extends out of the driving seat 41 to abut against the pressing block 33 .

[0026] like Figure 2 and 4 As shown, the connection structure also includes a limiting member 6 for limiting the driving slide bar 42. The limiting member 6 includes a limiting connecting plate 61 and a limiting plug rod 62. The limiting connecting plate 61 is connected to the ends of the two driving slide bars 42. A first limiting hole is provided in the limiting connecting plate 61, and a second limiting hole 411 is provided on the driving seat 41. The limiting plug rod 62 is provided in the cavity of the limiting connecting plate 61. The limiting plug rod 62 drives the limiting connecting plate 61 and the driving slide bar 42 to move, so that the driving push rod 44 is pressed against the pressing block 33. Then the limiting plug rod 62 is rotated to align the limiting plug rod 62 with the second limiting hole 411. After the limiting plug rod 62 passes through the second limiting hole 411, it is rotated and reset, and the limiting plug rod 62 is in contact with the side of the driving seat 41 away from the limiting connecting plate 61.

[0027] like Figure 1 and 4As shown, in order to facilitate the fixed connection of the driving seat 41 to the steel beam 2, the connection structure also includes a clamping assembly 7, the clamping assembly 7 includes a clamping seat 71, a first clamping plate 74 and a second clamping plate 75, the clamping seat 71 is fixedly connected to the driving seat 41, a sliding groove is provided on the clamping seat 71, a clamping screw 72 is rotatably connected to the clamping seat 71 and the clamping screw 72 is located in the sliding groove. The clamping screw 72 is a double-threaded screw, and the first clamping plate 74 is fixedly connected to the first clamping block 741, and the second clamping block 751 is fixedly connected to the second clamping plate 75. The first clamping block 741 and the second clamping block 751 are both located in the sliding groove and are both threadedly connected to the clamping screw 72. The clamping screw 72 passes through one end of the clamping seat 71 and is fixedly connected to a rotating handle 73. The rotating handle 73 drives the clamping screw 72 to rotate, and synchronously drives the first clamping plate 74 and the second clamping plate 75 to move toward each other, so that the first clamping plate 74 and the second clamping plate 75 clamp the steel beam 2.

[0028] The use principle of a straight web steel-concrete composite beam connection structure in the embodiment of the present application is as follows: Before assembly and construction, several connecting sleeves 31 are first threadedly connected to the steel beam 2 in sequence to achieve preliminary fixation. Then, the clamping screw 72 is driven to rotate by driving the rotating handle 73, and then the first clamping plate 74 and the second clamping plate 75 are driven to move closer to each other and clamp the steel beam 2, so as to achieve the fixation between the clamping seat 71 and the driving seat 41 and the steel beam 2. The operator holds the limit plug 62 and pushes the limit plug 62 to drive the limit connecting plate 61 and the driving slide 42 to move synchronously. The driving slide 42 can drive the driving block to move along the driving slide, so that multiple driving push rods 44 are synchronously extended from the driving seat 41, and the reset spring 45 is in a stretched state. The driving push rod 44 mortgages the pressing block 33, and the pressing block drives the pressing rod 32 and the wedge block 35 to move synchronously, so that the locking ball 36 is retracted into the placement space, and the pressing spring 37 is in a compressed state.

[0029] After completing the above actions, the limit connecting plate 61 is fitted with the driving seat 41, and the limit plug 62 is rotated to align the limit plug 62 with the first limit hole and the second limit hole 411. After the limit plug 62 passes through the second limit hole 411, it is rotated to reset. The limit plug 62 abuts against the side of the driving seat 41 away from the limit connecting plate 61, thereby realizing the stop limit of the driving slide rod 42.

[0030] Then the prefabricated bridge deck 1 is hoisted, so that the connection hole 11 of the prefabricated bridge deck 1 is aligned with the threaded hole 21 of the steel beam 2, and the connection sleeve rod 31 is inserted into the connection hole 11. At this time, the limit rod 62 is rotated again to release the limit on the driving slide bar 42, and the limit rod 62 is pulled in the opposite direction to drive the limit connecting plate 61 and the driving slide bar 42 to reset. After the driving slide block 43 moves and resets accordingly, the driving stop rod 44 is reset and moved into the driving seat 41 under the elastic force of the reset spring 45.

[0031] The pressing rod 32 and the wedge block 35 are automatically reset under the elastic force of the pressing spring 37, and the wedge surface 351 of the wedge block 35 drives the locking ball 36 to extend out of the locking hole 313 and abut against the hole wall of the connecting hole 11 of the prefabricated bridge deck 1, thereby realizing the locking connection between the prefabricated bridge deck 1 and the steel beam 2.

[0032] After using for a period of time, if the partially prefabricated bridge deck 1 needs to be disassembled and replaced, with the assistance of the clamping assembly 7 and the driving assembly 4, the disassembly operation can also be achieved quickly, which is convenient and efficient.

[0033] The present application also discloses a construction method using the above straight web steel-concrete composite beam connection structure, comprising the following steps: First, a threaded hole 21 is opened on the steel beam 2; Prefabricate and connect the locking connection assembly 3 to the steel beam 2, that is, thread the connecting sleeve rod 31 to the steel beam 2 to achieve preliminary fixation; A connection hole 11 is provided on the prefabricated bridge deck 1; The driving assembly 4 is installed on the steel beam 2, and the driving assembly 4 and the steel beam 2 are clamped and fixed by the clamping assembly 7; The driving assembly 4 presses the pressing rod 32 to be in a ready state, and the operator pushes the limiting rod 62 to drive the limiting connecting plate 61 to move, drive the driving slide rod 42 and the driving slide block 43 to move, and then drive the pressing block 33 and the pressing rod 32 to move, so that the locking ball 36 is retracted into the placement space, waiting for the prefabricated bridge deck 1 to be in place; The prefabricated bridge deck 1 is hoisted onto the steel beam 2, and the prefabricated bridge deck 1 is fitted onto the steel beam 2, and the connection hole 11 is aligned with the threaded hole 21, and the connection sleeve rod 31 is inserted into the connection hole 11; The limit rod 62 drives the driving slide rod 42 and the driving slide block 43 to move in the opposite direction, so that the pressing rod 32 and the wedge block 35 are reset, and the wedge surface 351 drives the locking ball 36 to extend out of the locking hole 313, so that the locking connection assembly 3 realizes the locking connection between the steel beam 2 and the prefabricated bridge deck 1; Then, the handle 73 is rotated in the opposite direction, so that the first clamping plate 74 and the second clamping plate 75 move away from each other, thereby releasing the clamping of the steel beam 2, thereby facilitating the release of the fixed connection between the driving assembly 4 and the steel beam 2.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A straight web steel-concrete composite beam connection structure, characterized in that: The invention comprises a prefabricated bridge deck (1), a steel beam (2) and a locking connection assembly (3) for penetrating and locking the prefabricated bridge deck (1) and the steel beam (2), wherein the locking connection assembly (3) comprises a connecting sleeve rod (31), a pressing rod (32), a pressing spring (37), a wedge block (35) and a locking ball (36), wherein the steel beam (2) is provided with a threaded hole (21) for threaded connection of the connecting sleeve rod (31), the prefabricated bridge deck (1) is provided with a connecting hole (11) for inserting the connecting sleeve rod (31), and the pressing rod (32) is coaxially arranged on the connecting sleeve rod (31). In the connecting sleeve rod (31), the pressing spring (37) is sleeved on the pressing rod (32), the wedge block (35) is arranged at one end of the pressing rod (32), the locking ball (36) is located between the pressing rod (32) and the connecting sleeve rod (31), and the locking ball (36) is located between the pressing rod (32) and the wedge block (35), the wedge block (35) is provided with a wedge surface (351), the wedge surface (351) and the locking ball (36) are in contact with each other, and the connecting sleeve rod (31) is provided with a locking hole (313) for the locking ball (36) to extend out.

2. A straight web steel-concrete composite beam connection structure according to claim 1, characterized in that: A pressing block (33) is provided at one end of the pressing rod (32) away from the wedge block (35), an abutting step (312) is provided in the connecting sleeve rod (31), one end of the pressing spring (37) abuts against the abutting step (312), and the other end of the pressing spring (37) abuts against the pressing block (33).

3. The straight web steel-concrete composite beam connection structure according to claim 2, characterized in that: A limit locking step (311) is provided in the connecting sleeve rod (31), and the pressing block (33) abuts against the limit locking step (311) after being pressed and moved.

4. A straight web steel-concrete composite beam connection structure according to claim 3, characterized in that: A connecting rod (34) is provided between the pressing rod (32) and the wedge block (35), the diameter of the connecting rod (34) being smaller than the diameter of the pressing rod (32), and a placement space is formed between the outer peripheral wall of the connecting rod (34) and the inner peripheral wall of the connecting sleeve rod (31), the placement space being used for placing a locking ball (36).

5. The straight web steel-concrete composite beam connection structure according to claim 4, characterized in that: An anti-slip ring (38) is provided along the circumference of one end of the wedge block (35) away from the connecting rod (34).

6. The straight web steel-concrete composite beam connection structure according to claim 2, characterized in that: The invention also comprises a driving assembly (4) for driving the pressing rod (32) to move, wherein the driving assembly (4) comprises a driving seat (41), a driving slide bar (42), a driving slider (43) and a driving stop bar (44), wherein the driving seat (41) is connected to the steel beam (2), the driving slide bar (42) is slidably connected to the driving seat (41), the driving slide bar (42) slides along the length direction of the steel beam (2), the driving slider (43) is connected to the driving slide bar (42), and the driving slider (43) The driving lever (44) is wedge-shaped, and is slidably disposed in the driving seat (41). The sliding direction of the driving lever (44) is perpendicular to the sliding direction of the driving slide bar (42). A return spring (45) is disposed at one end of the driving lever (44). The end of the return spring (45) away from the driving lever (44) is fixedly connected to the driving seat (41). One end of the driving lever (44) abuts against the wedge surface of the wedge block (35), and the other end extends out of the driving seat (41) to abut against the pressing block (33).

7. The straight web steel-concrete composite beam connection structure according to claim 6, characterized in that: The driving seat (41) is provided with a moving hole for the driving lever (44) to slide, and at least two return springs (45) are provided. The at least two return springs (45) are symmetrically arranged on both sides of the driving slider (43).

8. The straight web steel-concrete composite beam connection structure according to claim 6, characterized in that: The invention also comprises a limiting member (6) for limiting the driving slide bar (42), wherein the limiting member (6) comprises a limiting connecting plate (61) and a limiting plug rod (62), wherein the limiting connecting plate (61) is connected to the driving slide bar (42), wherein a first limiting hole is formed on the limiting connecting plate (61), and a second limiting hole (411) is formed on the driving seat (41), wherein the limiting plug rod (62) is arranged in the limiting connecting plate (61), wherein the limiting plug rod (62) drives the limiting connecting plate (61) and the driving slide bar (42) to move, wherein the limiting plug rod (62) is rotated so that the limiting plug rod (62) is aligned with the second limiting hole (411), wherein the limiting plug rod (62) passes through the second limiting hole (411) and then rotates to reset, wherein the limiting plug rod (62) abuts against a side of the driving seat (41) away from the limiting connecting plate (61).

9. The straight web steel-concrete composite beam connection structure according to claim 6, characterized in that: It also includes a clamping assembly (7) for clamping the driving seat (41) and the steel beam (2), the clamping assembly (7) including a clamping seat (71), a first clamping plate (74) and a second clamping plate (75), the clamping seat (71) is arranged on the driving seat (41), the clamping seat (71) is provided with a sliding groove, the clamping seat (71) is rotatably connected to a clamping screw (72) and the clamping screw (72) is located in the sliding groove, the clamping screw (72) is a double-threaded screw, the first clamping plate (74) and the second clamping plate (75) are both threadedly connected to the clamping screw (72), and the clamping screw (72) rotates to drive the first clamping plate (74) and the second clamping plate (75) to move synchronously toward or away from each other.

10. A construction method using a straight web steel-concrete composite beam connection structure according to any one of claims 1 to 9, characterized in that: The steps include: The steel beam (2) is provided with a threaded hole (21); Prefabricate and connect the locking connection assembly (3) and the steel beam (2); The prefabricated bridge deck (1) is provided with a connection hole (11); Installing the driving assembly (4) on the steel beam (2); The driving component (4) presses the pressing rod (32) to enter a ready state; Hoisting the prefabricated bridge deck (1) onto the steel beam (2) and aligning the connection hole (11) with the threaded hole (21); The driving component (4) drives the pressing rod (32) to reset, and the locking connection component (3) locks and connects the steel beam (2) and the prefabricated bridge deck (1).

Images