CN220619825U - Transverse sectional supporting structure of steel box girder - Google Patents
Transverse sectional supporting structure of steel box girder Download PDFInfo
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- CN220619825U CN220619825U CN202322190313.5U CN202322190313U CN220619825U CN 220619825 U CN220619825 U CN 220619825U CN 202322190313 U CN202322190313 U CN 202322190313U CN 220619825 U CN220619825 U CN 220619825U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 230000008093 supporting effect Effects 0.000 title claims abstract description 34
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 abstract description 13
- 230000004323 axial length Effects 0.000 abstract description 10
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the technical field of steel box girder reinforcement, and particularly relates to a steel box girder transverse sectional support structure which comprises a plurality of groups of support components, wherein each group of support components comprises a plurality of support rods and a plurality of positioning rod groups fixedly arranged on a steel box girder section, each support rod comprises a screw and a sleeve in threaded connection with two ends of the screw, each positioning rod group comprises two positioning rods which are oppositely arranged, and each sleeve and the corresponding positioning rod can axially and relatively move. According to the utility model, the axial length of the supporting rod is adjustable, the sleeve extends into the positioning rod to support and reinforce the steel box girder section, the sleeve is separated from the positioning rod to detach the supporting rod, cutting and detachment are not needed, the operation is convenient and simple, the detached supporting rod can be directly reused, and the problems of inconvenience in detachment of the reinforcing member and high recycling difficulty are effectively solved. Moreover, the utility model is suitable for supporting and reinforcing the steel box girder sections with different section heights, and has strong adaptability.
Description
Technical Field
The utility model belongs to the technical field of steel box girder reinforcement, and particularly relates to a transverse sectional supporting structure of a steel box girder.
Background
The steel box girder, also called a steel plate box girder, is a common structural form of a large-span bridge, and is generally formed by connecting a top plate, a bottom plate, a web plate, a diaphragm plate, a longitudinal diaphragm plate, stiffening ribs and the like in a welding mode. In the construction process of the large-span bridge, the maximum span single span of the steel box girder can reach more than 30m, the section width can reach more than 9.6m, the section height can reach more than 1.7m, and the problem of overrun of road transportation exists, so that the manufacture and the transportation of the steel box girder are carried out in sections. The steel box girder segments include a transverse segment and a longitudinal segment, and conventionally, only a girder Duan Dingyi having a seam perpendicular to the traveling direction of the bridge is taken as a transverse girder segment, and a girder Duan Dingyi having a seam parallel to the traveling direction of the bridge is taken as a longitudinal girder segment. Therefore, after the steel box girder is transversely segmented, the road transportation requirement is met.
However, after the steel box girder is transversely segmented, the total number of steel box girder webs cannot ensure that each steel box girder segment has two webs, namely, the box chambers of part of the steel box girder segments are in a C shape. In order to prevent the steel box girder segment with the C-shaped box chamber from deforming in the hoisting and transporting process, a reinforcing member (a scissor brace) is generally adopted to reinforce the steel box girder segment with the C-shaped box chamber, namely a false web is installed. However, since the reinforcing member is usually welded on the steel box girder segment, after the steel box girder segment is hoisted in place and all welded and the steel box girder is formed as a whole, the reinforcing member is removed by cutting and disassembling, and the cutting and disassembling mode has large workload, and the length of the cut reinforcing member is shortened and is difficult to recycle. Namely, the reinforcing member of the existing steel box girder section has the problems of inconvenient disassembly and high recycling difficulty.
Disclosure of Invention
The utility model aims to provide a transverse sectional supporting structure of a steel box girder so as to solve the problems of inconvenient disassembly and high recycling difficulty of reinforcing members of the steel box girder section.
In order to achieve the above purpose, the scheme of the utility model is as follows: the steel box girder transverse sectional support structure comprises a plurality of groups of support assemblies, each group of support assemblies comprises a plurality of support rods and a plurality of positioning rod groups fixedly mounted on the steel box girder sections, each support rod comprises a screw and a sleeve in threaded connection with two ends of the screw, each positioning rod group comprises two positioning rods which are oppositely arranged, and the sleeve and the corresponding positioning rod can axially and relatively move.
The working principle and the beneficial effects of the scheme are as follows: in this scheme, the sleeve pipe relative rotation at screw rod and screw rod both ends, the sleeve pipe can follow the axial displacement of screw rod to make the axial length of bracing piece change. After the axial length of the supporting rod is prolonged, the telescopic sleeve extends into the corresponding positioning rod, so that the supporting and reinforcing of the steel box girder section with the C-shaped box chamber are realized, and the deformation of the steel box girder section with the C-shaped box chamber is avoided; after the axial length of the supporting rod is shortened, the telescopic sleeve is separated from the positioning rod, the supporting rod can be detached without cutting and disassembling, the operation is simple and convenient, the detached supporting rod can be directly reused, and the problems that the reinforcing member is inconvenient to detach and the recycling difficulty is high are effectively solved.
In addition, the axial length of the supporting rod in the scheme is adjustable, so that the supporting rod can be suitable for supporting and reinforcing work of steel box girder sections with different section heights, and has stronger adaptability.
Optionally, the screw is a double-threaded screw, threads at two ends of the double-threaded screw are opposite in rotation direction, the sleeve is fixedly connected with an L-shaped rod, on the same double-threaded screw, the end part of one L-shaped rod is fixedly connected with an inserting rod, and the end part of the other L-shaped rod is fixedly connected with an inserting pipe for inserting the inserting rod; the sleeve is axially and slidably connected with the corresponding positioning rod.
In this scheme, realize axial relative movement through L type pole, inserted bar and intubate between the sleeve pipe at double-screw thread screw rod both ends, the staff only need handheld L type pole or intubate, and the double-screw thread screw rod of rotation can realize two sheathed tube axial movement, need not to realize sheathed tube axial movement through rotating the sleeve pipe to reduce staff's operation volume, improve bracing piece installation, dismantlement efficiency.
Optionally, the screw comprises a diagonal screw and a vertical screw.
In this scheme, after oblique screw rod installation, form triangle-shaped structure with the lateral wall of steel case girder segment, triangle-shaped structure atress is stable, and is good to the support reinforcement effect of steel case girder segment. The vertical screw rod can vertically support the steel box girder section and support and strengthen the steel box girder in cooperation with the inclined screw rod.
Optionally, the quantity of oblique screw rod is two, and two oblique screw rods set up along vertical axis symmetry of vertical screw rod, and the through-hole of horizontal setting has been seted up at the middle part of oblique screw rod.
In this scheme, insert cylinder spare or adopt wire rope to pass the through-hole and bind two oblique screw rods in the through-hole, can make two oblique screw rods form the bracing, improve the support reinforcement effect to the steel case girder section.
Optionally, the through hole is penetrated by a locking bolt.
In this scheme, the locking bolt runs through the through-hole, and is fixed with two oblique screw rods, easy operation, convenience.
Optionally, the number of the vertical screws is two, wherein one vertical screw is located at the middle section of the inclined screw, and the other vertical screw is located between the inclined screws of two adjacent groups of support assemblies.
In this scheme, vertical screw rod is two, and has a vertical screw rod to be located between the oblique screw rod of adjacent two sets of supporting component for keep away from the oblique screw rod of steel case girder section lateral wall and can form triangle-shaped structure with vertical screw rod, thereby improve the supporting component and consolidate the effect to the support of steel case girder section.
Optionally, a fixing component for fixing the sleeve is arranged on the sleeve.
In this scheme, fixed subassembly on the locating lever fixes the sleeve pipe on the locating lever, so, when the steel case girder section received vertically ascending effort, the bracing piece can apply the pulling force to the steel case girder section to avoid the steel case girder section to take place tensile deformation.
Optionally, be equipped with first otic placode on the locating lever, fixed subassembly includes second otic placode and fixing bolt, and second otic placode fixed connection is on the sleeve pipe, has all seted up the through-hole that supplies fixing bolt to run through on first otic placode and the second otic placode.
In this scheme, screw up the nut on the fixing bolt, can fix the sleeve pipe on the locating lever to, take off the nut on the fixing bolt and can release sleeve pipe and locating lever's fixed, the bracing piece is dismantled conveniently.
Optionally, the sleeve is screwed outside the positioning rod.
In this scheme, the sleeve pipe passes through threaded connection's mode and installs outside the locating lever, not only can realize the axial relative movement between sleeve pipe and the locating lever through the mode of rotation sleeve pipe, can also ensure when the sleeve pipe is in non-rotation state down, can not relative movement between sleeve pipe and the locating lever to realize preventing that the steel case roof beam section from taking place tensile deformation and compression deformation's function.
Optionally, the locating bar is welded to the steel box girder segment.
In this scheme, the locating lever welds on the steel case girder section, realizes the fixed connection of locating lever and steel case girder section, and can not destroy the structure of steel case girder section.
Drawings
FIG. 1 is an elevation view of a steel box girder transverse sectional support structure in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic view of a middle inclined screw and a positioning rod according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a second embodiment of the present utility model, showing the structure of a middle inclined screw and a positioning rod;
fig. 4 is a schematic structural view of a vertical screw and a positioning rod in a second embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: the steel box girder comprises a supporting rod 1, an inclined screw 110, a vertical screw 120, a sleeve 130, a positioning rod 2, a through hole 3, a steel box girder section top plate 4, a steel box girder section bottom plate 5, an L-shaped rod 6, a cannula 7, a inserting rod 8, a first lug plate 9, a second lug plate 10 and a fixing bolt 11.
Example 1
This embodiment is basically as shown in fig. 1 and 2: the steel box girder transverse sectional support structure comprises a plurality of support assemblies, each support assembly comprises a plurality of support rods 1 and a plurality of positioning rod groups fixedly mounted on the steel box girder sections, each support rod 1 comprises a screw and a sleeve 130 in threaded connection with two ends of the screw, each positioning rod group comprises two positioning rods 2 which are oppositely arranged, and each sleeve 130 and the corresponding positioning rod 2 can axially and relatively move. In this embodiment, the number of support assemblies is related to the span of the steel box girder segment, and the number of support assemblies can be reasonably designed according to the steel box girder segment. In addition, the locating rod 2 is welded on the steel box girder section, the sleeve 130 is in threaded connection with the outside of the locating rod 2, and the thread rotation direction on the outer wall of the locating rod 2 is the same as the thread rotation direction of the screw rod. In addition, in the embodiment, the steel box girder section refers to a steel box girder section with a C-shaped box chamber.
The screw rod includes oblique screw rod 110 and vertical screw rod 120, and the quantity of oblique screw rod 110 and vertical screw rod 120 is two, and two oblique screw rods 110 set up along the vertical axis symmetry of a vertical screw rod 120, and another vertical screw rod 120 is located between the oblique screw rod 110 of two adjacent sets of supporting components. The middle part of the inclined screw 110 is provided with a horizontally arranged through hole 3, and the through hole 3 is penetrated by a locking bolt or a steel wire rope.
When the support device is used, a worker reasonably designs the number of support components to be installed according to the span of the steel box girder section, marks the installation sites of the positioning rods 2 on the top plate 4 and the bottom plate of the steel box girder section, and needs to pay attention at this moment that four positioning rods 2 corresponding to the two inclined screw rods 110 are sequentially connected to form a rectangle, so that the two inclined screw rods 110 are ensured to be positioned on two diagonal lines of the rectangle. Then, the locking bolt on the inclined screw rod 110 is removed, the positioning rods 2 positioned at the bottom ends of the inclined screw rod 110 and the vertical screw rod 120 are welded on the bottom plate 5 of the steel box girder segment, then the sleeve 130 at the top end of the inclined screw rod 110 is rotated, the sleeve 130 moves along the axial direction of the inclined screw rod 110 in the direction away from the bottom end of the inclined screw rod 110 until the positioning rods 2 positioned at the top end of the inclined screw rod 110 are propped against the top plate 4 of the steel box girder segment, and then the positioning rods 2 positioned at the top end of the inclined screw rod 110 are welded on the top plate 4 of the steel box girder segment. The operation of the vertical screw 120 is the same as that of the diagonal screw 110, so that the locating bar 2 at the top end of the vertical screw 120 is welded to the steel box girder segment top plate 4. In the above process, if the sleeve 130 located at the top end of the inclined screw 110 or the vertical screw 120 is rotated, and the support rod 1 is not extended enough to weld the corresponding positioning rod 2, the sleeve 130 located at the bottom end of the inclined screw 110 or the vertical screw 120 may be rotated, or the positioning rod 2 located at the top end of the inclined screw 110 or the vertical screw 120 may be rotated, so that the axial length of the support rod 1 is increased, until a worker can weld the positioning rod 2 on the top plate 4 of the steel box girder segment.
After the installation of the supporting rod 1 is completed, the locking bolt penetrates through the through hole 3 again, the two inclined screw rods 110 are fixed, the two inclined screw rods 110 form a scissor stay, and the supporting and reinforcing effects on the steel box girder section are improved. Thus, the installation of a group of supporting components is completed, and according to the operation steps, the installation of all the supporting components is completed, so that the supporting and reinforcing of the steel box girder section can be realized, and the steel box girder section is prevented from deforming in the hoisting and transporting process.
In addition, after the steel box girder segments are hoisted in place and all welded and the steel box girder is formed into a whole, a worker rotates the sleeve 130, so that the sleeves 130 at the two ends of the inclined screw 110 and the vertical screw 120 move towards the middle section direction of the screw, the axial length of the supporting rod 1 is reduced until the sleeves 130 are separated from the corresponding positioning rods 2, the inclined screw 110 and the vertical screw 120 can be taken down, and the prefabricated corresponding positioning rods 2 are connected in the sleeve 130 through threads, so that the sleeve can be reused, and the operation is convenient and simple.
In summary, the embodiment realizes the support and reinforcement of the steel box girder section with the C-shaped box chamber, and avoids the stress deformation in the hoisting and transportation process. In addition, the supporting rod 1 in the embodiment is detachable, the disassembly operation is simple and convenient, and the disassembled supporting rod 1 can be matched with the new positioning rod 2 immediately for reuse, so that the resource is not wasted. Moreover, the axial length of the supporting rod 1 in the embodiment is adjustable, so that the supporting rod can be suitable for steel box girder sections with different section heights, and has strong adaptability.
Example two
The present embodiment differs from the first embodiment in that: as shown in fig. 3 and 4, in this embodiment, the inclined screw 110 and the vertical screw 120 are both double-threaded screws, and the threads at both ends of the double-threaded screws are opposite in rotation direction. The sleeve 130 is welded with an L-shaped rod 6, and on the same double-threaded screw, the end of one L-shaped rod 6 is welded with a plug rod 8, and the end of the other L-shaped rod 6 is welded with a cannula 7 for inserting the plug rod 8. In addition, the sleeve 130 is axially slidably connected to the corresponding positioning rod 2, and in this embodiment, the positioning rod 2 may extend into the sleeve 130. The sleeve 130 is provided with a fixing component for fixing the sleeve 130, the fixing component comprises a second lug plate 10 and a fixing bolt 11, the second lug plate 10 is welded on the sleeve 130, the positioning rod 2 is welded with a first lug plate 9, and the first lug plate 9 and the second lug plate 10 are respectively provided with a through hole for the fixing bolt 11 to penetrate.
In this embodiment, after the positioning rod 2 at the bottom end of the double-threaded screw is welded on the bottom plate 5 of the steel box girder segment in the process of installing the supporting rod 1, a worker holds the insertion tube 7 and rotates the double-threaded screw at one side, because the threads at the two ends of the double-threaded screw are opposite in rotation, the sleeves 130 at the two ends of the double-threaded screw all move in the direction away from the middle section of the double-threaded screw, the axial length of the supporting rod 1 becomes longer, in this process, the insertion rod 8 moves in the insertion tube 7, the visible lengths of the insertion rod 8 and the insertion tube 7 become longer until the positioning rod 2 at the fixed end of the double-threaded screw abuts against the top plate 4 of the steel box girder segment, the worker does not rotate the double-threaded screw any more, and welds the positioning rod 2 on the top plate 4 of the steel box girder segment, so the installation of the supporting rod 1 is completed, and finally the locking bolt passes through the through hole 3 to fix the two oblique screws 110. Thus, compared with the embodiment, in this embodiment, the sleeves 130 on the two ends of the double-threaded screw rod can be moved axially at the same time, without rotating the sleeves 130 one by one, so that the workload is reduced, and the through holes 3 on the two inclined screw rods 110 can be kept relatively well, so that the two inclined screw rods 110 can be fixed by the locking bolt conveniently.
Similarly, after the steel box girder segments are hoisted in place and all welded together to form the whole steel box girder, the worker firstly removes the locking bolts, unlocks the two inclined screws 110, removes the fixing assembly, unlocks the sleeve 130 and the positioning rod 2. Then, the staff holds the intubate 7, rotates the double-thread screw rod simultaneously for sleeve pipe 130 on the double-thread screw rod removes to the direction that is close to the double-thread screw rod middle section, and the axial length of bracing piece 1 shortens, and until sleeve pipe 130 breaks away from locating lever 2, can take off the double-thread screw rod, convenient operation, simple. And the taken-down double-thread screw rod is fixedly connected with the prefabricated positioning rod 2 through the fixing component, so that the double-thread screw rod can be reused.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the present utility model. The description of the embodiments and the like in the specification can be used for explaining the contents of the claims.
Claims (10)
1. Transverse sectional supporting structure of steel box girder, its characterized in that: the support assembly comprises a plurality of groups of support assemblies, each group of support assemblies comprises a plurality of support rods and a plurality of positioning rod groups fixedly mounted on the steel box girder section, each support rod comprises a screw and a sleeve in threaded connection with two ends of the screw, each positioning rod group comprises two positioning rods which are oppositely arranged, and each sleeve and the corresponding positioning rod can axially and relatively move.
2. The steel box girder transversal sectional support structure according to claim 1, wherein: the screw rod is a double-thread screw rod, threads at two ends of the double-thread screw rod are opposite in rotation direction, the sleeve is fixedly connected with an L-shaped rod, an inserting rod is fixedly connected to the end part of one L-shaped rod on the same double-thread screw rod, and an inserting pipe for inserting the inserting rod is fixedly connected to the end part of the other L-shaped rod; the sleeve is axially and slidably connected with the corresponding positioning rod.
3. The steel box girder transversal sectional support structure according to claim 1 or 2, wherein: the screw includes a diagonal screw and a vertical screw.
4. A steel box girder transversal sectional support structure according to claim 3, wherein: the number of the inclined screw rods is two, the two inclined screw rods are symmetrically arranged along the vertical central axis of the vertical screw rod, and the middle part of the inclined screw rod is provided with a through hole which is horizontally arranged.
5. The steel box girder transversal sectional support structure according to claim 4, wherein: the through hole is penetrated with a locking bolt.
6. A steel box girder transversal sectional support structure according to claim 3, wherein: the number of the vertical screws is two, one vertical screw is positioned in the middle section of the inclined screw, and the other vertical screw is positioned between the inclined screws of two adjacent groups of support assemblies.
7. The steel box girder transversal sectional support structure according to claim 1, wherein: the sleeve is provided with a fixing component for fixing the sleeve.
8. The steel box girder transversal sectional support structure of claim 7, wherein: be equipped with first otic placode on the locating lever, fixed subassembly includes second otic placode and fixing bolt, and second otic placode fixed connection is on the sleeve pipe, has all seted up the through-hole that supplies fixing bolt to run through on first otic placode and the second otic placode.
9. The steel box girder transversal sectional support structure according to claim 1, wherein: the sleeve is in threaded connection with the outside of the positioning rod.
10. The steel box girder transversal sectional support structure according to claim 1, wherein: the locating rod is welded on the steel box girder section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322190313.5U CN220619825U (en) | 2023-08-15 | 2023-08-15 | Transverse sectional supporting structure of steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322190313.5U CN220619825U (en) | 2023-08-15 | 2023-08-15 | Transverse sectional supporting structure of steel box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220619825U true CN220619825U (en) | 2024-03-19 |
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ID=90225853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322190313.5U Active CN220619825U (en) | 2023-08-15 | 2023-08-15 | Transverse sectional supporting structure of steel box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220619825U (en) |
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2023
- 2023-08-15 CN CN202322190313.5U patent/CN220619825U/en active Active
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