Safe and rapid fixing device for assembling super-wide steel box tie bar arch rib sections

Abstract

The utility model relates to the field of bridge construction, in particular to an ultra-wide steel box tie bar arch rib segment assembly safe and rapid fixing device which comprises an operation platform and a positioning adjusting unit located on the operation platform. The plurality of positioning and adjusting units are respectively a left positioning and adjusting unit for positioning the left side of the arch rib section and a right positioning and adjusting unit for positioning the right side of the arch rib section. By means of the scheme, clamping and fixing of the arch rib sections are achieved, rapid positioning and preliminary fixing in the arch rib section installation process are achieved, and installation of the arch rib sections is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction, specifically to a safe and rapid fixing device for assembling ultra-wide steel box girder arch rib segments. Background Technology

[0002] An arch bridge consists of a beam and an arch. The arch is located on the beam and includes arch ribs, which are assembled and fixed from multiple arch rib segments.

[0003] The current construction method for through-arch bridges includes the steps of installing arch rib segments, jacking the entire beam and arch, and dismantling the arch rib assembly frame. During the arch rib segment installation, the arch rib assembly frame is first installed on the beam. Then, the arch rib segments are hoisted onto the top of the arch rib assembly frame, which supports the segments. Adjacent arch rib segments are then assembled, and the frame fixing structure secures both the segments and the frame. After the entire arch rib is assembled, the beam and arch form a beam-arch structure. The beam-arch is then jacked into place, and the arch rib assembly frame is dismantled.

[0004] Currently, during the hoisting of arch rib segments to the top of the arch rib assembly frame, the segments often cannot be pre-fixed quickly and accurately. The lack of a complete set of rapid positioning devices during installation results in significant swaying during hoisting and prolonged adjustment time for positioning, hindering the rapid installation of arch rib segments and the accurate fixation of the frame's fixing structure. Utility Model Content

[0005] This utility model aims to provide a safe and rapid fixing device for assembling ultra-wide steel box tie rod arch rib segments, so as to achieve clamping and fixing of the arch rib segments, realize rapid positioning and accurate fixing of the arch rib segments during the installation process, and facilitate the subsequent installation of arch rib segments and the fixing of the jig fixing structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments, including an operating platform and a positioning adjustment unit located on the operating platform; the number of positioning adjustment units is multiple, and the multiple positioning adjustment units are respectively a left positioning adjustment unit for positioning the left side of the arch rib segment and a right positioning adjustment unit for positioning the right side of the arch rib segment.

[0007] The principle and advantages of this scheme are as follows: The operating platform is fixed on the arch rib assembly jig, and the positioning and adjustment unit is installed on the operating platform. The positioning and adjustment unit is used to position and pre-fix the arch rib segments. Therefore, during the installation of the arch rib segments, the segments are hoisted onto the arch rib assembly jig. The left positioning and adjustment unit is located on the left side of the arch rib segment, and the right positioning and adjustment unit is located on the right side. The left and right positioning and adjustment units clamp the left and right sides of the arch rib segment, thus achieving positioning and preliminary fixation. The arch rib segments will not tilt or move left or right on the arch rib assembly jig, reducing the sway amplitude during hoisting. The arch rib segments are more stable on the jig, which helps reduce the time for adjusting the arch rib segment's posture and improves the accuracy, convenience, and speed of subsequent fixed installation. It also facilitates the accurate fixing of the subsequent jig fixing structure.

[0008] Preferably, as an improvement, the positioning adjustment unit includes a base and a clamping plate, the clamping plate being inclinedly disposed on the base.

[0009] Therefore, the clamping plate is inclined so that it can adapt to the inclined side of the arch rib segment, so that the clamping plate can better clamp the inclined side of the arch rib segment.

[0010] Preferably, as an improvement, the bottom of the clamping plate and the base are rotatably connected, and the angle between the clamping plate and the base is adjustable.

[0011] Therefore, the angle between the clamping plate and the base can be adjusted, so that the tilt angle of the clamping plate can be changed according to the actual situation of the side tilt of the arch rib segment, thus making it suitable for clamping the sides of the arch rib segment with different tilt angles.

[0012] Preferably, as an improvement, the base is fixed with an oblique drive member for pushing the clamping plate to adjust the angle.

[0013] Therefore, by using the inclined drive component, the clamping plate is driven to rotate on the base, thereby adjusting the tilt angle of the clamping plate. At the same time, the inclined drive component also provides support for the clamping plate, ensuring that the clamping plate maintains a stable tilt when the inclined drive component is stationary, thus providing stable clamping for the arch rib segment.

[0014] Preferably, as an improvement, a first connecting part is slidably connected to the side of the clamping plate, and the drive rod of the inclined drive member is rotatably connected to the first connecting part.

[0015] Therefore, the drive rod of the inclined drive component drives the first connecting part to slide on the clamping plate, and the first connecting part causes the clamping plate to swing, thereby realizing the adjustment of the tilt angle of the clamping plate.

[0016] Preferably, as an improvement, the bottom of the clamping plate and the base are slidably connected, and the position of the clamping plate on the base is adjustable by sliding the clamping plate on the base.

[0017] Therefore, the clamping plate can slide on the base, so the distance between the clamping plate of the left positioning adjustment unit and the clamping plate of the right positioning adjustment unit can be adjusted, thereby enabling the clamping of arch rib segments of different widths.

[0018] Preferably, as an improvement, a lateral drive member for pushing the clamping plate to slide is fixed on the base.

[0019] Thus, by pushing the clamping plate with the lateral drive component, the clamping plate can slide on the base.

[0020] Preferably, as an improvement, a second connecting part is slidably connected to the base, the drive rod of the transverse drive member is connected to the second connecting part, and the bottom of the clamping plate is connected to the second connecting part.

[0021] Therefore, by pushing the second connecting part with the lateral driving component, the second connecting part slides on the base, and the second connecting part drives the clamping plate to move, thereby realizing the change of the position of the clamping plate on the base and realizing the sliding of the clamping plate on the base.

[0022] Preferably, as an improvement, the bottom of the clamping plate and the second connecting part are rotatably connected. Thus, the clamping plate rotates on the second connecting part, allowing the clamping plate to rotate on the base and thereby adjust the tilt angle of the clamping plate.

[0023] Preferably, as an improvement, a fine-adjustment component is installed on the side of the clamping plate. Thus, the fine-adjustment component, mounted on the clamping plate, abuts against the side of the arch rib segment. The reason for including the fine-adjustment component in this application is that, during actual construction, even after the position and angle of the clamping plate are adjusted, a gap may still exist between the clamping plate and the arch rib segment, affecting the clamping positioning and fixing effect. Therefore, this application includes a fine-adjustment component that can be adjusted according to the gap between the clamping plate and the side of the arch rib segment, changing the extension length of the fine-adjustment component. The fine-adjustment component can fill the gap between the clamping plate and the side of the arch rib segment, and by pressing against the side of the arch rib segment, the stability of the clamping and fixing of the arch rib segment is improved. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a beam-arch system (including the beam body, arch ribs, and arch rib assembly frame).

[0025] Figure 2 The diagram illustrates the structure connecting the upper arch rib segment, the beam body, and a set of arch rib assembly frames.

[0026] Figure 3 for Figure 2 A schematic diagram of the structure of AA.

[0027] Figure 4 for Figure 2 A schematic diagram of the structure of BB. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The reference numerals in the accompanying drawings include: 1. Arch rib segment; 2. Beam; 3. Arch rib assembly jig; 4. Operating platform; 5. Support platform; 6. Positioning and adjustment unit; 60. Clamping plate; 61. Inclined drive component; 62. Base; 63. Lateral drive component; 64. Fine-tuning component; 65. Second connecting part; 66. First connecting part; 7. Jig fixing structure.

[0030] The basic implementation examples are as follows: Figures 1-4 As shown: The ultra-wide steel box tie rod arch rib segment assembly safety and fast fixing device includes an operating platform 4 and a positioning adjustment unit 6 located on the operating platform 4; there are multiple positioning adjustment units 6, which are respectively a left positioning adjustment unit for positioning the left side of the arch rib segment 1 and a right positioning adjustment unit for positioning the right side of the arch rib segment 1.

[0031] Combination Figure 1 As shown, the assembled beam arch in this embodiment includes a beam body 2 and multiple sets of arch rib assembly frames 3. Figure 1 Each group of arch rib assembly jigs 3 consists of 2 or 3 arch rib assembly jigs 3, with the tops of each group of arch rib assembly jigs 3 close to each other, and an arch rib located on top of the arch rib assembly jigs 3, which is assembled from multiple arch rib segments 1. Figure 2 As shown, Figure 2 The diagram illustrates the structure in which a set of arch rib assembly jigs 3 supports an arch rib segment 1. Taking this structure as an example, the specific structure and usage of the ultra-wide steel box tie rod arch rib segment assembly safety and fast fixing device in this embodiment are explained in detail.

[0032] Figure 2 An operating platform 4 is installed on one set of arch rib assembly jigs 3. The operating platform 4 is detachably fixed to the arch rib assembly jig 3 via support rods and bolts. A positioning adjustment unit 6 is installed on the operating platform 4. Alternatively, in some other embodiments, the operating platform 4 is provided with a support platform 5, on which the positioning adjustment unit 6 is installed. Figure 2 and Figure 3 As shown, in this embodiment, there are four positioning adjustment units 6 on the operating table. Figure 2Two of the positioning adjustment units 6 are located on the left side of the arch rib assembly jig 3 in the figure, and two other positioning adjustment units 6 are located on the right side of the arch rib assembly jig 3 in the figure; combined with Figure 3 As shown, the two positioning adjustment units 6 located on the left side of the arch rib segment 1 are left positioning adjustment units, and the two positioning adjustment units 6 located on the right side of the arch rib segment 1 are right positioning adjustment units. The two left positioning adjustment units and the two right positioning adjustment units are arranged opposite to each other, thereby clamping the left and right sides of the arch rib segment 1.

[0033] Combination Figure 3 As shown, the positioning adjustment unit 6 in this embodiment includes a base 62 and a clamping plate 60. The base 62 is detachably connected to the operating platform 4 or the support platform 5 of the operating platform 4 by bolts. The clamping plate 60 is inclinedly disposed on the base 62. The bottom of the clamping plate 60 is rotatably connected to the base 62. Specifically, the rotatable connection is as follows: the base 62 is provided with a second connecting part 65 that can slide laterally. The second connecting part 65 and the bottom of the clamping plate 60 are connected by a pivot. Thus, by rotating the clamping plate 60 on the second connecting part 65, the angle between the clamping plate 60 and the base 62 is adjusted.

[0034] To facilitate adjustment of the tilt angle of the clamping plate 60, a slanted drive component 61 for adjusting the angle of the clamping plate 60 is fixedly provided on the base 62. The slanted drive component 61 is a lifting structure such as a hydraulic cylinder, pneumatic cylinder, electric, or mechanical mechanism. The bottom end of the slanted drive component 61 is fixed to the base 62, for example, by bolts. The end of the drive rod of the slanted drive component 61 is connected to the clamping plate 60. In this embodiment, a first connecting part 66 is vertically slidably connected to the side of the clamping plate 60 away from the arch rib segment 1. The drive rod of the slanted drive component 61 and the first connecting part 66 are rotatably connected by a pin. Thus, by extending and retracting the drive rod of the slanted drive component 61, the drive rod drives the clamping plate 60 to rotate on the second connecting part 65 through the first connecting part 66, thereby realizing the adjustment of the tilt angle of the clamping plate 60. In this embodiment, the first connecting part 66 is slidably disposed on the clamping plate 60, so that when the driving rod of the inclined driving member 61 drives the first connecting part 66, the first connecting part 66 can move appropriately on the clamping plate 60, avoiding the situation where the first connecting part 66 is fixed on the clamping plate 60, preventing the driving rod of the inclined driving member 61 from driving the clamping plate 60 to rotate. Specifically, the sliding mechanism between the first connecting part 66 and the clamping plate 60 in this embodiment can be as follows: a vertical T-shaped groove is provided on the side of the clamping plate 60, and a T-shaped sliding part is provided on the first connecting part 66, with the sliding part located in the groove.

[0035] In this embodiment, the bottom of the clamping plate 60 and the base 62 are slidably connected. Specifically, the clamping plate 60 slides laterally on the base 62 via the second connecting part 65. The specific sliding method between the second connecting part 65 and the base 62 is as follows: the base 62 is provided with a transverse T-shaped groove, and the second connecting part 65 is provided with a T-shaped sliding part located in the groove. In this embodiment, a transverse driving member 63 for pushing the clamping plate 60 to slide is fixed (e.g., fixed by bolts) on the base 62. The transverse driving member 63 is a lifting structure such as a hydraulic cylinder, pneumatic cylinder, electric or mechanical. The driving rod of the transverse driving member 63 is connected to the second connecting part 65. In this way, by extending and retracting the driving rod of the transverse driving member, the second connecting part 65 is driven to slide on the base 62, thereby realizing the adjustment of the transverse position of the clamping plate 60.

[0036] In this embodiment, the inclined drive member 61 is inclined and supports the clamping plate 60. The inclined drive member 61, the transverse drive member 63, and the clamping plate 60 form a triangular structure. According to the principle of triangle stability, when the lengths of the inclined drive member 61 and the transverse drive member 63 are fixed, the clamping plate 60 is more stable on the base 62, and the clamping plate 60 can stably clamp the arch rib segment 1.

[0037] In this embodiment, when adjusting the tilt angle of the clamping plate 60, the lateral drive member 63 can be kept stationary. The extension and retraction of the drive rod of the oblique drive member 61 causes the first connecting part 66 to swing the clamping plate 60, thus adjusting the tilt angle of the clamping plate 60. At this time, the bottom end of the clamping plate 60 rotates around the second connecting part 65. Alternatively, the oblique drive member 61 can be kept stationary, and the extension and retraction of the drive rod of the lateral drive member 63 causes the second connecting part 65 to swing the clamping plate 60, thus adjusting the tilt angle of the clamping plate 60. At this time, the clamping plate 60 rotates relative to the first connecting part 66, and the lateral position of the bottom of the clamping plate 60 also changes. Alternatively, the position and angle of the clamping plate 60 can be adjusted by the joint extension and retraction of the oblique drive member 61 and the lateral drive member 63. Therefore, by setting up the oblique drive member 61 and the transverse drive member 63, this application makes the adjustable range of the clamping plate 60 more flexible by controlling the extension and retraction of the oblique drive member 61 or the transverse drive member 63, so as to be able to adapt to different specifications of arch rib segments 1.

[0038] In other embodiments, multiple fine-tuning components 64 are also installed (e.g., by bolts) on the side of the clamping plate 60 facing the arch rib segment 1. The fine-tuning components 64 can be fine-tuning cylinders, fine-tuning hydraulic cylinders, or electric or mechanical fine-tuning lifting components. After coarsely adjusting the position and angle of the clamping plate 60 using the oblique drive 61 and the lateral drive 63, the arch rib segment 1 is placed between the clamping plates 60 of the left and right positioning adjustment units. Then, through the extension and retraction of the fine-tuning components 64, the sides of the arch rib segment 1 are tightly pressed together, enabling more precise positioning and initial fixation of the arch rib segment 1.

[0039] The specific implementation process is as follows: First, an arch rib assembly jig 3 is erected on the beam 2. Then, an operating platform 4 is installed on the arch rib assembly jig 3, and a positioning adjustment unit 6 is installed on the operating platform 4. Based on the width of the arch rib segment 1 and the side inclination angle of the arch rib segment 1, the position and angle of the clamping plate 60 on the positioning adjustment unit 6 are initially adjusted. Then, the arch rib bracket is hoisted between the left and right positioning adjustment units. The position and angle of the clamping plate 60 are then adjusted to make the position and angle of the clamping plate 60 more suitable for the corresponding specifications of the arch rib segment 1. At this point, the coarse adjustment of the position and angle of the clamping plate 60 is completed. Then, the fine adjustment component 64 is adjusted so that the fine adjustment component 64 is pressed against the side of the arch rib segment 1, realizing the positioning and initial fixation of the arch rib segment 1 by the positioning adjustment unit 6.

[0040] After the arch rib segment 1 is positioned and initially fixed, adjacent arch rib segments 1 are fixed (e.g., welded) and a frame fixing structure 7 (specifically a structure welded from steel plates) is installed at the top of the arch rib assembly jig 3. The frame fixing structure 7 connects and fixes the arch rib segments 1 and the arch rib assembly jig 3. After the arch rib segments 1 on each set of arch rib assembly jig 3 are installed and the frame fixing structure 7 is installed and fixed, the positioning adjustment unit 6 is removed and moved to other arch rib assembly jig 3. The other arch rib segments 1 are positioned and initially fixed in the same way as described above, completing the installation of the arch rib segments 1 in other parts and the fixing of the frame fixing structure 7.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments, characterized in that: It includes an operating platform and a positioning adjustment unit located on the operating platform; the number of the positioning adjustment units is multiple, and the multiple positioning adjustment units are a left positioning adjustment unit for positioning the left side of the arch rib segment and a right positioning adjustment unit for positioning the right side of the arch rib segment.

2. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 1, characterized in that: The positioning adjustment unit includes a base and a clamping plate, with the clamping plate tilted on the base.

3. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 2, characterized in that: The bottom of the clamping plate is rotatably connected to the base, and the angle between the clamping plate and the base is adjustable.

4. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 3, characterized in that: The base is fixedly equipped with an oblique drive component for pushing the clamping plate to adjust its angle.

5. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 4, characterized in that: A first connecting part is slidably connected to the side of the clamping plate, and the drive rod of the inclined drive member is rotatably connected to the first connecting part.

6. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 2, characterized in that: The bottom of the clamping plate is slidably connected to the base, and the position of the clamping plate on the base is adjustable by sliding the clamping plate on the base.

7. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 6, characterized in that: The base is fixedly equipped with a lateral drive component for pushing the clamping plate to slide.

8. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 7, characterized in that: The base is slidably connected to a second connecting part, the drive rod of the transverse drive member is connected to the second connecting part, and the bottom of the clamping plate is connected to the second connecting part.

9. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to claim 8, characterized in that: The bottom of the clamping plate and the second connecting part are rotatably connected.

10. The safe and quick fixing device for assembling ultra-wide steel box tie rod arch rib segments according to any one of claims 2-9, characterized in that: Fine-tuning components are installed on the side of the clamping plate.

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