A support device for assembling steel box girders

Abstract

This invention belongs to the field of bridge engineering technology and discloses a support device for steel box girder assembly, including a top plate and an adjustable support assembly. The adjustable support assembly includes a base, a sleeve and reinforcing ribs connected to the base, and a height adjusting component connected to the sleeve via threads. The height adjusting component has an adjusting part with a through hole. The top of the height adjusting component has an arc-shaped protrusion, and the lower side of the top plate has an arc-shaped groove that mates with the arc-shaped protrusion. A limiting component is connected to the lower side of the top plate via screws, and the top plate and the height adjusting component are connected via the limiting component. The upper side of the top plate is connected to the steel box girder. This invention allows for detachable connection between the top plate and the adjustable support assembly, facilitating easy assembly and disassembly of the support device. The support height of the steel box girder is easily adjusted via threads. The top plate and the height adjusting component are connected via an arc-shaped surface and a connecting component, resulting in good seismic performance of the device.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, specifically to a support device for assembling steel box girders. Background Technology

[0002] Steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges, generally used on bridges with large spans. They are called steel box girders because their shape resembles a box. The installation of steel box girders is a crucial part of bridge construction, typically employing methods such as hoisting, assembly, and welding. To ensure the installation quality and safety of the steel box girders, appropriate positioning support structures need to be installed during construction to provide stable support and a working platform.

[0003] However, existing positioning support structures mostly involve fixing and welding their support arms to the bottom beam. This results in a fixed support height and position, making it impossible to adjust to changes in the height and position of the steel box girder. Consequently, the positioning support structure must be disassembled and reassembled, leading to low efficiency and time-consuming and labor-intensive construction. Furthermore, after a period of use, the roadbed is prone to settlement due to external environmental factors, causing some sections to sink and affecting the normal use of the steel box girder. In addition, because the connection between the steel box girder and the positioning support structure is rigid, its seismic performance is poor, and the connecting components are prone to loosening or damage. Summary of the Invention

[0004] This invention aims to provide a support device for assembling steel box girders. The top plate connecting the steel box girder and the adjustable support assembly are detachably connected, facilitating convenient assembly and disassembly of the entire support device. The adjustable support assembly's overall height is adjusted via threads, allowing for adjustment of the steel box girder support height. The top plate has an arc-shaped groove, and the height adjustment component of the adjustable support assembly has an arc-shaped protrusion; the two are connected by a limiting component, effectively improving the seismic performance of the entire support device. This invention solves the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A support device for assembling steel box girders includes a top plate and an adjustable support assembly. The adjustable support assembly includes a base, a sleeve fixedly connected to the base, and a height adjusting component connected to the sleeve via a thread. The top plate is detachably connected to the height adjusting component, and the upper side of the top plate is connected to the steel box girder.

[0007] Furthermore, the top of the height adjustment component is provided with an arc-shaped protrusion, and the top plate is provided with an arc-shaped groove that cooperates with the arc-shaped protrusion. The top plate and the height adjustment component are connected by a limiting component.

[0008] Furthermore, the limiting member is connected to the top plate by screws; when the height adjusting member is connected to the top plate, the arc-shaped protrusion is located inside the arc-shaped groove, and the side of the limiting member away from the screw abuts against the arc-shaped surface of the arc-shaped protrusion.

[0009] Furthermore, there are three limiting members, which are evenly arranged with the center of the end face of the arc-shaped groove as the reference center, and when the height adjustment member is connected to the top plate, the arc-shaped protrusion is located on the inner side of the three limiting members.

[0010] Furthermore, the arc-shaped contact surfaces of the arc-shaped protrusions and arc-shaped grooves are all provided with wear-resistant layers.

[0011] Furthermore, the radii of curvature of the arc-shaped protrusion and the arc-shaped groove are equal.

[0012] Furthermore, the limiting member is Z-shaped.

[0013] Furthermore, the sleeve is fixedly connected to the upper end of the base, and a reinforcing rib is connected between the side wall of the sleeve and the upper surface of the base.

[0014] Furthermore, there are several reinforcing ribs, and these reinforcing ribs are evenly arranged with the central axis of the sleeve as the reference axis.

[0015] Furthermore, the height adjusting member is provided with an adjusting part, and the adjusting part is provided with an adjusting element.

[0016] Furthermore, the adjusting element is a handle.

[0017] Furthermore, the adjusting element is a fixing nut.

[0018] Furthermore, the adjustment part has a through hole.

[0019] The advantages and benefits of the technical solution are:

[0020] 1. The present invention provides a support device for assembling steel box girders, wherein the top plate of the steel box girder is detachably connected to the adjustable support assembly, and the entire support device is easy to assemble and disassemble; the adjustable support assembly includes a base, the base is fixedly connected to a sleeve, and the sleeve is connected to a height adjusting component through a thread. By rotating the height adjusting component, the height of the height adjusting component can be adjusted under the action of the thread, thereby realizing the adjustment of the support height of the steel box girder. The height adjustment operation is simple, the adjustment efficiency is high, and the performance of adjusting the height through the thread is reliable.

[0021] 2. This invention provides a support device for assembling steel box girders. An arc-shaped protrusion is provided at the top of the height adjustment component, and an arc-shaped groove is provided on the lower side of the top plate to mate with the protrusion. During installation and / or adjustment of the entire support device, the top plate abuts against the height adjustment component. Under the action of the arc-shaped protrusion and the arc-shaped groove, automatic alignment can be achieved to ensure accurate abutment position and / or abutment surface between the top plate and the height adjustment component, thereby ensuring the stability of the entire support device and the uniformity of height adjustment. The components are connected by three limiting components, which are connected to the top plate by screws. The end faces of the three limiting components abut against the arc-shaped surface of the arc-shaped protrusion, which facilitates the disassembly and assembly of the top plate and the height adjustment component. Under the action of the arc-shaped protrusion and the arc-shaped groove, the degree of freedom after the connection between the two is high, which can effectively improve the vibration resistance of the entire device (when the entire device vibrates, the arc-shaped protrusion and the arc-shaped groove can slide and / or roll relative to each other, and the abutment position between the limiting component and the arc-shaped protrusion changes accordingly to avoid "hard collision" between the two).

[0022] 3. The present invention provides a support device for assembling steel box girders, wherein several reinforcing ribs are evenly arranged between the side wall of the sleeve and the upper surface of the base to improve the support effect of the entire support device and prevent the support from tilting when under stress.

[0023] 4. The present invention provides a support device for assembling steel box girders, wherein an adjustment part is provided on the height adjustment component, and the adjustment part is provided with an adjustment component, which facilitates the adjustment of the relative height between itself and the sleeve; a through hole is opened in the adjustment part (the adjustment component is a hole on its shaft), so that during engineering construction, the height adjustment component can be adjusted by using tools such as steel shafts and wrenches that can pass through or engage, further improving the convenience of height adjustment operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a support device for assembling steel box girders according to the present invention;

[0025] Figure 2 This is a front view of the adjustable support component of the present invention;

[0026] Figure 3 This is a bottom view of the top plate connecting and limiting component of the present invention;

[0027] Figure 4 This is a front view of the limiting component of the present invention.

[0028] The names of the corresponding labels in the attached diagram are:

[0029] Top plate 1, limiting component 2, base 3, reinforcing rib 4, sleeve 5, height adjustment component 6, arc-shaped protrusion 7, arc-shaped groove 8, through hole 9. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0031] like Figures 1 to 4 As shown, a support device for assembling steel box girders includes a top plate 1 and an adjustable support assembly. The adjustable support assembly includes a base 3, with a sleeve 5 fixedly connected to the upper surface of the base 3. A plurality of reinforcing ribs 4 are connected between the side wall of the sleeve 5 and the upper surface of the base 3, and the reinforcing ribs 4 are evenly arranged with the central axis of the sleeve 5 as the reference axis. A height adjusting component 6 is threadedly connected to the sleeve 5. The height adjusting component 6 has an adjusting part, and the adjusting part has adjusting elements (such as adjusting handles, fixing nuts, etc.). In this embodiment, a through hole 9 is provided in the adjusting part, and the through hole 9 serves as the adjusting element. The top of the height adjusting component 6 has an arc-shaped protrusion 7, and the lower side of the top plate 1 has an arc-shaped protrusion 7. The top plate 1 has a convex protrusion 7 and an arc-shaped groove 8. Both the arc-shaped protrusion 7 and the arc-shaped groove 8 have a wear-resistant layer on their arc-shaped contact surfaces, and their radii of curvature are equal. The lower side of the top plate 1 is also detachably connected to three “Z”-shaped limiting parts 2 by screws. The three limiting parts 2 are evenly arranged with the center of the end face of the arc-shaped groove 8 as the reference center. The top plate 1 is connected to the height adjustment part 6 by the limiting parts 2. When the height adjustment part 6 is connected to the top plate 1, the arc-shaped protrusion 7 is located inside the arc-shaped groove 8. The side of the limiting part 2 away from the screw abuts against the arc-shaped surface of the arc-shaped protrusion 7. The arc-shaped protrusion 7 is located inside the three limiting parts 2. The upper side of the top plate 1 is connected to the steel box girder.

[0032] The specific implementation process is as follows:

[0033] When using this support device, the adjustable support assembly is placed on the reference surface using the base 3. Then, the arc-shaped groove 8 of the top plate 1 abuts against the arc-shaped protrusion 7 of the height adjustment component 6, and the limiting component 2 is connected to the top plate 1 using screws, so that the arc-shaped protrusion 7 is located inside the three limiting components 2, thus completing the connection between the top plate 1 and the adjustable support assembly. The upper surface of the top plate 1 abuts against the steel box girder, realizing its supporting function. When it is necessary to adjust the support height, the height adjustment component 6 is rotated using a steel shaft, wrench, or other tool that can pass through the through hole 9 or can be engaged with the through hole 9. Under the action of the thread, the entire support height is adjusted.

[0034] The height adjustment component 6 has an arc-shaped protrusion 7 at its top and an arc-shaped groove 8 on the lower side of the top plate 1 that mates with the protrusion 7. During installation and / or adjustment of the entire support device, the top plate 1 abuts against the height adjustment component 6. The arc-shaped protrusion 7 and the arc-shaped groove 8 allow for automatic alignment, ensuring precise contact position and / or contact surface between the top plate 1 and the height adjustment component 6, thus guaranteeing the stability of the entire support device and the uniformity of height adjustment. The top plate 1 and the height adjustment component 6 are connected by three limiting components 2, which are screwed to the top plate 1. The end face of the limiting component 2 abuts against the arc-shaped surface of the arc-shaped protrusion 7, which facilitates the disassembly and assembly of the top plate 1 and the height adjustment component 6. Under the action of the arc-shaped protrusion 7 and the arc-shaped groove 8, the two have a high degree of freedom after connection, which can effectively improve the seismic performance of the entire device. Several reinforcing ribs 4 are evenly arranged between the side wall of the sleeve 5 and the upper surface of the base 3 to improve the support effect of the entire support device and prevent tilting when the support is under stress. A through hole 9 is opened in the adjustment part. During engineering construction, the height adjustment component 6 can be adjusted by using tools such as steel shafts and wrenches that can pass through or clamp, which improves the convenience of height adjustment operation.

[0035] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention 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 support device for assembling steel box girders, characterized in that, It includes a top plate and an adjustable support assembly. The adjustable support assembly includes a base, a sleeve fixedly connected to the base, and a height adjusting component connected to the sleeve via a thread. The top plate is detachably connected to the height adjusting component, and the upper side of the top plate is connected to a steel box girder. The height adjustment component has an arc-shaped protrusion at its top end, and the top plate has an arc-shaped groove that mates with the arc-shaped protrusion. The top plate and the height adjustment component are connected by a limiting component. The limiting member is connected to the top plate by screws; when the height adjusting member is connected to the top plate, the arc-shaped protrusion is located inside the arc-shaped groove, and the side of the limiting member away from the screw abuts against the arc-shaped surface of the arc-shaped protrusion. There are three limiting components, which are evenly arranged with the center of the end face of the arc-shaped groove as the reference center. When the height adjustment component is connected to the top plate, the arc-shaped protrusion is located on the inner side of the three limiting components. The limiting component is Z-shaped.

2. The support device for assembling steel box girders according to claim 1, characterized in that, The arc-shaped contact surfaces of the arc-shaped protrusions and arc-shaped grooves are all provided with wear-resistant layers.

3. The support device for assembling steel box girders according to claim 1, characterized in that, The radii of curvature of the arc-shaped protrusion and the arc-shaped groove are equal.

4. A support device for assembling steel box girders according to claim 1, characterized in that, The sleeve is fixedly connected to the upper end of the base, and a reinforcing rib is connected between the side wall of the sleeve and the upper surface of the base.

5. A support device for assembling steel box girders according to claim 4, characterized in that, There are several reinforcing ribs, and these reinforcing ribs are evenly arranged with the central axis of the sleeve as the reference axis.

6. A support device for assembling steel box girders according to claim 1, characterized in that, The height adjustment component is provided with an adjustment part, and the adjustment part is provided with an adjustment element.

7. A support device for assembling steel box girders according to claim 6, characterized in that, The adjusting element is a handle.

8. A support device for assembling steel box girders according to claim 6, characterized in that, The adjusting component is a fixing nut.

9. A support device for assembling steel box girders according to claim 6, characterized in that, The adjustment section has a through hole.

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