Supporting device for steel box girder assembly

Abstract

The invention belongs to the technical field of bridge engineering, and discloses a steel box girder assembly supporting device which comprises a top plate and an adjusting supporting assembly, the adjusting supporting assembly comprises a base, the base is connected with a sleeve and a reinforcing rib plate, the sleeve is in threaded connection with a height adjusting piece, the height adjusting piece is provided with an adjusting part, and the adjusting part is provided with a through hole; an arc-shaped protrusion is arranged at the top end of the height adjusting piece, an arc-shaped groove matched with the arc-shaped protrusion is formed in the lower side of the top plate, the lower side of the top plate is connected with a limiting piece through a screw, the top plate is connected with the height adjusting piece through the limiting piece, and the upper side of the top plate is connected with the steel box girder. The top plate connected with the steel box girder is detachably connected with the adjusting supporting assembly, and the supporting device is convenient to disassemble and assemble; the supporting height of the steel box girder is adjusted through threads, and height adjustment is convenient and fast; the top plate and the height adjusting piece are connected through the arc-shaped face and the connecting piece, and the anti-seismic performance of the device is good.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, in particular to a supporting device for assembling a steel box girder. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a common structural form for long-span bridges. It is generally used on bridges with larger spans. It is called steel box girder because of its box-like appearance. The installation of steel box girder is an important part of bridge construction. It is usually carried out by hoisting, assembly, welding and other methods. In order to ensure the installation quality and safety of steel box girder, it is necessary to set up corresponding positioning support structure during the construction of steel box girder to provide stable support and working platform.

[0003] However, the existing positioning support structures mostly have their support arms fixedly welded on the bottom beam, resulting in fixed support height and support position of the positioning support structure, which cannot be adjusted to adapt to changes in the height and position of the steel box girder, resulting in the positioning support structure having to be disassembled and reassembled, with low adjustment efficiency and time-consuming and labor-intensive construction process; moreover, after the bridge has been used for a period of time, due to the influence of the external environment, the roadbed is prone to settlement, resulting in depression of some sections of the road, which will affect the normal use of the steel box girder; in addition, since the connection position between the steel box girder and the positioning support structure is a rigid connection, the seismic performance is poor and the connecting parts are prone to loosening or damage. Summary of the invention

[0004] The present invention is intended to provide a support device for assembling a steel box girder, wherein the top plate connected to the steel box girder is detachably connected to the adjustable support assembly, and the entire support device is convenient to assemble and disassemble; the adjustable support assembly can adjust its overall height through a thread, so as to adjust the support height of the steel box girder; the top plate is provided with an arc-shaped groove, and the height adjustment member of the adjustable support assembly is provided with an arc-shaped protrusion, and the two are connected by a limiter, so as to effectively improve the seismic performance of the entire support device. The problem in the background technology is solved.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A support device for assembling a steel box girder comprises a top plate and an adjustable support assembly, wherein the adjustable support assembly comprises a base, the base is fixedly connected to a sleeve, and the sleeve is threadedly connected to a height adjustment member; the top plate is detachably connected to the height adjustment member, and the upper side of the top plate is connected to the steel box girder.

[0007] Furthermore, an arc-shaped protrusion is provided at the top end of the height adjustment member, and an arc-shaped groove is provided on the top plate to cooperate with the arc-shaped protrusion, and the top plate and the height adjustment member are connected via a limiting member.

[0008] Furthermore, the limiting member is connected to the top plate via a screw; when the height adjustment member is connected to the top plate, the arc-shaped protrusion is arranged on the inner side of 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 limit members, which are evenly arranged with the end surface center 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 arranged on the inner side of the three limit members.

[0010] Furthermore, the arc-shaped contact surfaces of the arc-shaped protrusion and the arc-shaped groove are both provided with a wear-resistant layer.

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

[0012] Furthermore, the limiting member is in a "Z" shape.

[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, the reinforcing ribs include a plurality of pieces, and the plurality of reinforcing ribs are evenly arranged with the central axis of the sleeve as a reference axis.

[0015] Furthermore, the height adjustment member is provided with an adjustment portion, and the adjustment portion is provided with an adjustment member.

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

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

[0018] Furthermore, the adjusting portion is provided with a through hole.

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

[0020] 1. The present invention provides a support device for assembling a steel box girder, in which a top plate connected to the steel box girder is detachably connected to an adjustable support assembly, and the entire support device is convenient to assemble and disassemble; the adjustable support assembly includes a base, the base is fixedly connected to a sleeve, the sleeve is connected to a height adjustment member through a thread, and the height adjustment member can be adjusted in height by rotating the height adjustment assembly 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 height is adjusted by the thread, and its performance is reliable.

[0021] 2. The present invention provides a support device for assembling a steel box girder, wherein an arc-shaped protrusion is arranged at the top of the height adjustment member, and an arc-shaped groove matched with the arc-shaped protrusion is arranged at the lower side of the top plate. When installing and / or debugging the entire support device, the top plate abuts against the height adjustment member, and under the action of the arc-shaped protrusion and the arc-shaped groove, automatic alignment can be achieved to ensure that the abutting position and / or abutting surface between the top plate and the height adjustment member are accurate, so as to ensure the stability of the entire support device and the uniformity during the height adjustment process; the top plate and the height adjustment member are in contact with each other. The parts are connected by three limit members, and the three limit members are connected to the top plate by screws. The end faces of the three limit members abut against the arcuate surfaces of the arc-shaped protrusions, which makes it easy to disassemble and assemble the top plate and the height adjusting part. Under the action of the arc-shaped protrusions and the arc-shaped grooves, the two have a high degree of freedom after being connected, which can effectively improve the seismic performance of the entire device (when the entire device vibrates, relative sliding and / or rolling can occur between the arc-shaped protrusions and the arc-shaped grooves, and the abutting position of the limit members and the arc-shaped protrusions changes accordingly to avoid "head-on collision" between the two).

[0022] 3. The present invention provides a support device for assembling a steel box girder, in which a plurality of reinforcing ribs are evenly arranged between the side wall of the sleeve and the upper surface of the base, so as to improve the support effect of the entire support device and prevent the support from tilting when subjected to force.

[0023] 4. The present invention provides a support device for assembling a steel box girder, in which an adjusting portion is provided on the height adjusting member, and the adjusting portion is provided with an adjusting member, which is convenient for adjusting the relative height between the adjusting member and the sleeve; a through hole is provided in the adjusting portion (the adjusting member is the hole on its shaft), and during engineering construction, the height adjusting member can be adjusted by using a steel shaft, a wrench or other tools that can pass through or clamp, thereby further improving the convenience of the height adjustment operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 A front view of the adjustable support assembly of the present invention;

[0026] Figure 3 A bottom view of the top plate connection limiter of the present invention;

[0027] Figure 4 It is the front view of the limiting member of the present invention.

[0028] The names of the corresponding marks in the accompanying drawings are:

[0029] Top plate 1, limiting member 2, base 3, reinforcing rib 4, sleeve 5, height adjusting member 6, arc-shaped protrusion 7, arc-shaped groove 8, through hole 9. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0031] like Figures 1 to 4 As shown, a support device for assembling a steel box girder includes a top plate 1 and an adjustable support assembly, the adjustable support assembly includes a base 3, a sleeve 5 is 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 plurality of reinforcing ribs 4 are evenly arranged with the central axis of the sleeve 5 as the reference axis, the sleeve 5 is threadedly connected to a height adjustment member 6, the height adjustment member 6 is provided with an adjustment portion, and the adjustment portion is provided with an adjustment member (such as an adjustment handle, a fixing nut, etc.), in this embodiment, a through hole 9 is opened in the adjustment portion, and the through hole 9 is used as an adjustment member; the top of the height adjustment member 6 is provided with an arc-shaped protrusion 7, and the lower side of the top plate 1 is provided with a height adjustment member 6 that is aligned with the arc The arc-shaped protrusion 7 is matched with the arc-shaped groove 8, and the arc-shaped contact surfaces of the arc-shaped protrusion 7 and the arc-shaped groove 8 are both provided with a wear-resistant layer, and the curvature radii of the two are equal. The lower side of the top plate 1 is also detachably connected with three "Z"-shaped limit members 2 by screws, and the three limit members 2 are evenly arranged with the end face center of the arc-shaped groove 8 as the reference center. The top plate 1 is connected to the height adjustment member 6 through the limit member 2. When the height adjustment member 6 is connected to the top plate 1, the arc-shaped protrusion 7 is arranged on the inner side of the arc-shaped groove 8, and the side of the limit member 2 away from the screw abuts against the arc surface of the arc-shaped protrusion 7, and the arc-shaped protrusion 7 is arranged on the inner side of the three limit members 2, and 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 the support device, the base 3 is used to place the adjustable support assembly on the reference plane, and then the arc groove 8 of the top plate 1 is abutted against the arc protrusion 7 of the height adjustment member 6, and the limit member 2 is connected to the top plate 1 by screws, so that the arc protrusion 7 is arranged on the inner side of the three limit members 2 to complete the connection between the top plate 1 and the adjustable support assembly; the upper surface of the top plate 1 is abutted against the steel box beam to achieve the supporting effect. When the support height needs to be adjusted, the height adjustment member 6 is rotated with a steel shaft, a wrench or other tools that can pass through the through hole 9 or can be clamped in the through hole 9, and the entire support height is adjusted under the action of the thread.

[0034] Among them, an arc-shaped protrusion 7 is arranged on the top of the height adjustment member 6, and an arc-shaped groove 8 matched with the arc-shaped protrusion 7 is arranged on the lower side of the top plate 1. When installing and / or debugging the entire supporting device, the top plate 1 abuts against the height adjustment member 6. Under the action of the arc-shaped protrusion 7 and the arc-shaped groove 8, automatic alignment can be achieved to ensure that the abutting position and / or abutting surface between the top plate 1 and the height adjustment member 6 are accurate, so as to ensure the stability of the entire supporting device and the uniformity during the height adjustment process; the top plate 1 and the height adjustment member 6 are connected by three limit members 2, and the three limit members 2 are connected to the top plate 1 by screws. The end face of the limit member 2 abuts against the arc surface of the arc-shaped protrusion 7, which is convenient for the disassembly and assembly of the top plate 1 and the height adjustment member 6. Under the action of the arc-shaped protrusion 7 and the arc-shaped groove 8, the two are connected with a high degree of freedom, which can effectively improve the seismic performance of the entire device; a number of 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 supporting effect of the entire supporting device and prevent the support from tilting when it is subjected to force; a through hole 9 is opened in the adjustment part, and during engineering construction, the height adjustment member 6 can be adjusted by using tools that can pass through or clamp, such as steel shafts and wrenches, thereby improving the convenience of height adjustment operation.

[0035] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A support device for assembling a steel box girder, characterized in that: It includes a top plate and an adjustable support assembly, wherein the adjustable support assembly includes a base, the base is fixedly connected with a sleeve, and the sleeve is threadedly connected with a height adjustment member; the top plate is detachably connected to the height adjustment member, and the upper side of the top plate is connected to the steel box beam.

2. The support device for assembling a steel box girder according to claim 1, characterized in that: The top of the height adjusting member is provided with an arc-shaped protrusion, the top plate is provided with an arc-shaped groove matched with the arc-shaped protrusion, and the top plate and the height adjusting member are connected via a limiting member.

3. The support device for assembling a steel box girder according to claim 2, characterized in that: The limiting member is connected to the top plate via screws; when the height adjusting member is connected to the top plate, the arc-shaped protrusion is arranged on the inner side of 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.

4. The support device for assembling a steel box girder according to claim 3, characterized in that: There are three limiters, which are evenly arranged with the end face center 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 arranged on the inner side of the three limiters.

5. The support device for assembling a steel box girder according to claim 4, characterized in that: The arc-shaped contact surfaces of the arc-shaped protrusion and the arc-shaped groove are both provided with a wear-resistant layer.

6. The support device for assembling a steel box girder according to claim 4, characterized in that: The curvature radii of the arc-shaped protrusion and the arc-shaped groove are equal.

7. The support device for assembling a steel box girder according to claim 4, characterized in that: The limiting member is in a "Z" shape.

8. The support device for assembling a steel box girder 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.

9. The steel box girder assembly support device according to claim 8, characterized in that: The reinforcing ribs include a plurality of pieces, and the plurality of reinforcing ribs are evenly arranged with the central axis of the sleeve as a reference axis.

10. The support device for assembling a steel box beam according to claim 1, characterized in that: The height adjustment member is provided with an adjustment portion, and the adjustment portion is provided with an adjustment member.

11. A steel box girder assembly support device according to claim 10, characterized in that: The adjusting member is a handle.

12. The steel box girder assembly support device according to claim 10, characterized in that: The adjusting member is a fixing nut.

13. The steel box girder assembly support device according to claim 10, characterized in that: The adjusting portion is provided with a through hole.

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