Butt joint device for steel structure bridge deck slabs of cable-stayed bridge

Abstract

The utility model discloses a cable-stayed bridge steel structure bridge deck butt joint device, which relates to the technical field of bridge deck butt joint and comprises two parallel moving seats, supporting frames are slidably connected onto the two moving seats, first hydraulic cylinders are fixed on the front sides of the moving seats, and telescopic ends of the first hydraulic cylinders are connected with the supporting frames; the left end and the right end of the bottom of the top frame are connected with the top ends of the two supporting frames respectively, an adjusting frame is arranged at the bottom of the top frame, sleeve assemblies are arranged at the four corners of the bottom of the adjusting frame, and the bottom ends of the front sleeve assembly and the rear sleeve assembly located on the same side are jointly connected with a connecting plate. The sleeve assembly is connected between the connecting plate and the adjusting frame, and under the action of the sleeve assembly, the moving stability of the connecting plate can be guaranteed, so that the stability of a bridge deck connected with the bottom of the connecting plate is guaranteed, the hoisted bridge deck is not prone to shaking, and accurate butt joint of the bridge deck is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of bridge deck docking technology, specifically to a bridge deck docking device for steel structures of cable-stayed bridges. Background Technology

[0002] A cable-stayed bridge, also known as a skeletal-stayed bridge, is a type of bridge where the main girder is directly supported by numerous cables to the bridge towers. It is a structural system composed of compression-bearing towers, tension-bearing cables, and bending-resistant girder sections. It can be viewed as a multi-span, elastically supported continuous beam where cables replace piers, and it is the most common type of long-span bridge. A cable-stayed bridge consists of numerous steel cables directly connected to the towers, suspending the bridge deck, and is mainly composed of towers, cables, main girder sections, and piers.

[0003] Currently, during on-site construction of cable-stayed bridge steel structure bridge decks, most bridge decks are hoisted to the installation position using hoisting equipment and then connected for installation. However, the existing equipment used for hoisting bridge decks is prone to swaying during the hoisting and moving process due to the flexibility of the hoisting ropes. This makes it difficult to accurately align the bridge deck with its docking position, thus hindering the stable connection of the bridge deck.

[0004] Chinese Patent CN220224953U discloses an adjustment device for the docking of steel bridge deck panels of a cable-stayed bridge. The device includes: an adjustment frame comprising a fixed base and an L-shaped support; a hydraulic jack, the bottom of which is vertically fixed to a crossbar; and a leveling mechanism comprising a leveling base, a scale rod, a digital display device body, and a measuring rod. The leveling base is horizontally mounted on the upper part of the fixed base via a rotating shaft. The scale rod is vertically fixed to the upper part of the leveling base. The digital display device body is used to read the scale on the scale rod and is slidably mounted on the scale rod. The measuring rod is horizontally and vertically fixed to one side of the digital display device body. This invention solves the problems of traditional methods of panel alignment, such as damage and inaccurate alignment, by using a hydraulic jack at the bottom of the adjustment frame to adjust the height of misaligned panels and using the leveling mechanism to check whether the misaligned panels are aligned or within the specified range. However, the aforementioned device lacks a rigid guide structure, relies solely on a hydraulic jack for vertical lifting, and cannot adjust the position of the bridge deck in multiple directions. Utility Model Content

[0005] The purpose of this invention is to provide a cable-stayed bridge steel structure deck panel docking device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable-stayed bridge steel structure deck panel docking device, comprising:

[0007] At least two parallel movable seats are provided, each movable seat is provided with a slidable support frame, and a first hydraulic cylinder is fixed to the front side of the movable seat. The telescopic end of the first hydraulic cylinder is connected to the support frame to drive the support frame to move.

[0008] The top frame has its bottom ends connected to the top ends of the support frame, and the bottom of the top frame is provided with a horizontally adjustable adjustment frame. A second hydraulic cylinder is installed between the adjustment frame and one of the support frames, and the telescopic end of the second hydraulic cylinder is connected to the adjustment frame to drive the adjustment frame to move laterally.

[0009] The bottom of the adjustment frame is provided with multiple sleeve assemblies. The bottom ends of two sleeve assemblies located on the same side are connected to a connecting plate. Multiple hooks are fixed to the bottom of the connecting plate.

[0010] A winch assembly is located on the upper middle part of the adjustment frame. The winch assembly is connected to the connecting plate through a hoisting rope passing through a corresponding sleeve assembly. The sleeve assembly guides and constrains the movement path of the hoisting rope.

[0011] Furthermore, the sleeve assembly includes a first sleeve, a second sleeve that is slidably nested inside the first sleeve, the lower end of the second sleeve extending out of the first sleeve, and a third sleeve that is slidably nested inside the second sleeve, the lower end of the third sleeve extending out of the second sleeve.

[0012] Furthermore, a first fixing plate is fitted onto the top end of the first sleeve, and the first fixing plate is connected to the bottom of the adjustment frame. A second fixing plate is fixedly fitted onto the bottom end of the third sleeve, and the second fixing plate is connected to the upper side of the connecting plate, so that the connection between the sleeve assembly and the adjustment frame and the connecting plate is reliable and stable.

[0013] Furthermore, the adjustment frame has through holes at the positions corresponding to the top of each first sleeve, and a guide wheel is fixed on the upper side of the adjustment frame at the edge of the through hole. The suspension rope passes through the guide wheel and the through hole.

[0014] Furthermore, a first slide rail is fixed to the upper side of the movable seat, and a first slide block is fixed to the bottom of the support frame. The first slide block is slidably mounted on the first slide rail, so that the support frame can move relative to the movable seat.

[0015] Furthermore, the top frame is fixed with a second slide rail on both the front and rear sides, and the adjustment frame is fixed with a support seat on both the left and right ends of the front and rear sides. A second slide seat is fixed on the support seat, and the second slide seat is slidably mounted on the second slide rail.

[0016] This allows the adjustment frame to slide relative to the top frame, making it easy to adjust the position of the adjustment frame.

[0017] Furthermore, there are two second hydraulic cylinders, the bases of the two second hydraulic cylinders are connected to the support frame located on the right, and the telescopic ends of the two second hydraulic cylinders are connected to the right side of the adjustment frame.

[0018] By having two second hydraulic cylinders work synchronously, the adjustment frame can be moved, and the position of the connecting plate below the adjustment frame can be adjusted, thereby adjusting the position of the suspended bridge deck.

[0019] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0020] 1. This utility model has a sleeve assembly connected between the connecting plate and the adjustment frame. Under the action of the sleeve assembly, the stability of the moving connecting plate can be guaranteed, thereby ensuring the stability of the bridge panel connected to the bottom of the connecting plate, making the suspended bridge panel less prone to shaking, thus facilitating the precise docking of the bridge panel.

[0021] 2. This utility model is equipped with a first hydraulic cylinder and a second hydraulic cylinder. The first hydraulic cylinder drives the support frame to move forward or backward, which can adjust the front-to-back displacement position of the bridge panel. The second hydraulic cylinder pushes the adjustment frame to move left or right, which can adjust the left-to-right displacement position of the bridge panel. This facilitates the adjustment of the position of the bridge panel and makes it easier to accurately connect the bridge panel. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram showing the connection between the adjustment frame and the connecting plate of this utility model;

[0025] Figure 3 This is a schematic diagram of the sleeve assembly structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the connecting plate structure of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] Among them, 1-moving seat; 2-support frame; 3-first hydraulic cylinder; 4-top frame; 5-adjusting frame; 6-second hydraulic cylinder; 7-sleeve assembly; 8-connecting plate; 9-hook; 10-lifting rope; 11-first sleeve; 12-second sleeve; 13-third sleeve; 14-first fixed plate; 15-second fixed plate; 16-through hole; 17-first slide rail; 18-first slide block; 19-second slide rail; 20-support seat; 21-second slide block; 22-guide wheel; 23-hoisting assembly. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model provides, for example Figures 1 to 4 The cable-stayed bridge steel structure bridge deck docking device shown includes:

[0031] This device includes two parallel movable seats 1, with a support frame 2 slidably connected to the upper part of each seat via a first slide rail 17 and a first slide block 18. A first hydraulic cylinder 3 is fixed to the front side of each movable seat 1, and its telescopic end is connected to the support frame 2 to drive the support frame to move back and forth. The bottom ends of the top frame 4 are fixedly connected to the top ends of the two support frames 2 respectively. The upper front and rear parts of the top frame 4 are fixed with second slide rails 19. The adjustment frame 5 is slidably mounted on the second slide rail 19 via the second slide block 21 on the support seat 20 to achieve lateral adjustment.

[0032] The right side of the adjustment frame 5 is connected to the right support frame 2 via two second hydraulic cylinders 6, and is driven to move laterally by the second hydraulic cylinders 6;

[0033] The bottom of the adjustment frame 5 is provided with four sleeve assemblies 7. Each sleeve assembly 7 consists of a first sleeve 11, a second sleeve 12 nested inside it, and a third sleeve 13. The top end of the first sleeve 11 is connected to the adjustment frame 5 through the first fixing plate 14, and the bottom end of the third sleeve 13 is fixed to the connecting plate 8 through the second fixing plate 15. The front and rear sleeve assemblies 7 on the same side are connected to a connecting plate 8, and multiple hooks 9 are fixed at equal intervals at the bottom of the plate.

[0034] The hoisting assembly 23 is located on the upper center of the adjusting frame 5. Its four hoisting ropes 10 pass sequentially through the guide wheel 22, through hole 16, and inside the sleeve assembly 7 on the adjusting frame 5, and finally connect to the connecting plate 8. The multi-level nested structure of the sleeve assembly 7 provides rigid guidance and constraint for the hoisting ropes 10, suppressing the swaying of the bridge deck. The moving seat 1, support frame 2, top frame 4, and adjusting frame 5 achieve precise multi-degree-of-freedom adjustment in front-back, lateral, and lifting directions through the cooperation of slide rails and hydraulic cylinders, meeting complex construction needs.

[0035] In one embodiment, such as Figure 3As shown, the sleeve assembly 7 includes a first sleeve 11, a second sleeve 12 is slidably nested inside the first sleeve 11, the lower end of the second sleeve 12 extends out of the first sleeve 11, and a third sleeve 13 is slidably nested inside the second sleeve 12, the lower end of the third sleeve 13 extends out of the second sleeve 12.

[0036] The top end of the first sleeve 11 is fitted with a first fixing plate 14, which is connected to the bottom of the adjustment frame 5. The bottom end of the third sleeve 13 is fixedly fitted with a second fixing plate 15, which is connected to the upper side of the connecting plate 8, so that the sleeve assembly 7 is firmly and stably connected to the adjustment frame 5 and the connecting plate 8.

[0037] In one embodiment, such as Figure 1 and Figure 2 As shown, through holes 16 are provided on the adjustment frame 5 at the positions corresponding to the top of each first sleeve 11. A guide wheel 22 is fixed on the upper side of the adjustment frame 5 at the edge of the through hole 16, and the suspension rope 10 passes through the guide wheel 22 and the through hole 16.

[0038] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, a first slide rail 17 is fixed on the upper side of the movable seat 1, and a first slide block 18 is fixed on the bottom of the support frame 2. The first slide block 18 is slidably mounted on the first slide rail 17, so that the support frame 2 can move relative to the movable seat 1.

[0039] The top frame 4 is fixed with the second slide rail 19 on both the front and rear sides. The adjustment frame 5 is fixed with the left and right ends of the front and rear sides. The second slide 21 is fixed on the support 20 and is slidably mounted on the second slide rail 19.

[0040] This allows the adjusting frame 5 to slide relative to the top frame 4, making it convenient to adjust the position of the adjusting frame 5;

[0041] There are two second hydraulic cylinders 6. The bases of the two second hydraulic cylinders 6 are connected to the support frame 2 located on the right, and the telescopic ends of the two second hydraulic cylinders 6 are connected to the right side of the adjustment frame 5.

[0042] By having two second hydraulic cylinders 6 work synchronously, the adjustment frame 5 can be moved, and the position of the connecting plate 8 below the adjustment frame 5 can be adjusted, thereby adjusting the position of the suspended bridge deck.

[0043] Working principle: The winch assembly 23 drives the four hoisting ropes 10 to descend synchronously. The hoisting ropes 10 pass through the guide wheel 22, through hole 16 and sleeve assembly 7 on the adjustment frame 5 in sequence, driving the connecting plate 8 to descend. After the bridge panel is fixed by the hook 9, the winch assembly 23 retracts the hoisting ropes 10 to lift the bridge panel vertically.

[0044] The first hydraulic cylinder 3 pushes the support frame 2 to slide back and forth along the first slide rail 17 on the movable seat 1, thereby driving the top frame 4 and the adjusting frame 5 to move forward or backward as a whole, thereby adjusting the front and rear installation position of the bridge panel.

[0045] Lateral position adjustment: The two second hydraulic cylinders 6 extend and retract synchronously, driving the adjustment frame 5 to slide laterally along the second slide rail 19 on the top frame 4, thereby causing the connecting plate 8 and the bridge panel to move left or right to achieve lateral alignment.

[0046] Under the constraint of the three-layer nested structure of the sleeve assembly 7 (first sleeve 11, second sleeve 12, and third sleeve 13), the suspension rope 10 can only extend and retract in the vertical direction, limiting the horizontal swaying of the bridge deck; at the same time, the adjustment frame 5 and the top frame 4, and the support frame 2 and the moving seat 1 are guided by the slide rail-slide seat system to ensure smooth movement.

[0047] The bridge deck is precisely positioned in three-dimensional space by the coordinated operation of the first hydraulic cylinder 3 (controlling forward and backward movement), the second hydraulic cylinder 6 (controlling lateral movement), and the hoisting assembly 23 (controlling lifting and lowering), thus meeting the complex docking requirements of cable-stayed bridges.

[0048] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable-stayed bridge steel structure deck panel docking device, characterized in that, include: At least two parallel movable seats (1) are provided with a slidable support frame (2) on the movable seat (1). A first hydraulic cylinder (3) is fixed to the front side of the movable seat (1). The telescopic end of the first hydraulic cylinder (3) is connected to the support frame (2) to drive the support frame to move. Top frame (4), the bottom two ends of the top frame (4) are respectively connected to the top of the support frame (2), the bottom of the top frame (4) is provided with a horizontally adjustable adjustment frame (5), a second hydraulic cylinder (6) is installed between the adjustment frame (5) and one of the support frames (2), the telescopic end of the second hydraulic cylinder (6) is connected to the adjustment frame (5) to drive the adjustment frame to move horizontally; The bottom of the adjustment frame (5) is provided with multiple sleeve assemblies (7), and the bottom ends of two sleeve assemblies (7) located on the same side are connected to a connecting plate (8). Multiple hooks (9) are fixed to the bottom of the connecting plate (8). The winch assembly (23) is located in the middle of the upper side of the adjustment frame (5). The winch assembly (23) is connected to the connecting plate (8) through the corresponding sleeve assembly (7) via the hoisting rope (10). The sleeve assembly (7) guides and constrains the movement path of the hoisting rope (10).

2. The cable-stayed bridge steel structure deck panel splicing device according to claim 1, characterized in that: The sleeve assembly (7) includes a first sleeve (11), a second sleeve (12) is slidably nested inside the first sleeve (11), the lower end of the second sleeve (12) extends out of the first sleeve (11), and a third sleeve (13) is slidably nested inside the second sleeve (12), the lower end of the third sleeve (13) extends out of the second sleeve (12).

3. The cable-stayed bridge steel structure deck panel docking device according to claim 2, characterized in that: The top end of the first sleeve (11) is fitted with a first fixing plate (14), the first fixing plate (14) is connected to the bottom of the adjustment frame (5), and the bottom end of the third sleeve (13) is fixedly fitted with a second fixing plate (15), the second fixing plate (15) is connected to the upper side of the connecting plate (8).

4. The cable-stayed bridge steel structure deck panel docking device according to claim 2, characterized in that: The adjustment frame (5) has through holes (16) at the top of each first sleeve (11). A guide wheel (22) is fixed on the upper side of the adjustment frame (5) at the edge of the through hole (16). The suspension rope (10) passes through the guide wheel (22) and the through hole (16).

5. The cable-stayed bridge steel structure bridge deck docking device according to claim 1, characterized in that: The upper side of the movable seat (1) is fixed with a first slide rail (17), and the bottom of the support frame (2) is fixed with a first slide block (18). The first slide block (18) is slidably mounted on the first slide rail (17).

6. The cable-stayed bridge steel structure deck panel splicing device according to claim 1, characterized in that: The top frame (4) is fixed with a second slide rail (19) on both the front and rear sides of the upper side. The adjustment frame (5) is fixed with a support seat (20) on both the left and right sides of the front and rear sides of the upper side. A second slide seat (21) is fixed on the support seat (20). The second slide seat (21) is slidably installed on the second slide rail (19).

7. The cable-stayed bridge steel structure deck panel splicing device according to claim 1, characterized in that: There are two second hydraulic cylinders (6). The bases of the two second hydraulic cylinders (6) are connected to the support frame (2) located on the right, and the telescopic ends of the two second hydraulic cylinders (6) are connected to the right side of the adjustment frame (5).

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