CN219653544U - Steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and vertical rotating device - Google Patents
Steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and vertical rotating device Download PDFInfo
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- CN219653544U CN219653544U CN202320678488.8U CN202320678488U CN219653544U CN 219653544 U CN219653544 U CN 219653544U CN 202320678488 U CN202320678488 U CN 202320678488U CN 219653544 U CN219653544 U CN 219653544U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a single-column internal tilting steel tower horizontal-spliced-pulling vertical rotating device of a steel box girder cable-stayed bridge, which comprises an upper hinged support arranged at the bottom of an upper steel tower section and a lower hinged support arranged at the top of a lower steel tower section, wherein the upper hinged support comprises two upper hinged lugs arranged side by side, a shaft sleeve is arranged in a hinged hole on the upper hinged lugs, the lower hinged support comprises four lower hinged lugs arranged side by side, wherein the two lower hinged lugs positioned in the middle position are coated into a whole through a connecting plate and form a hinged lug body, and the shaft sleeve is arranged in a hinged hole on the lower hinged lug body; the two upper hinging lugs and the four lower hinging lugs are connected together by being inserted on the shaft sleeve through pin shafts; the four lower hinged ear seats are arranged on the lower hinged seat, so that the bearing capacity is better, the stability in the vertical rotation process is better, and the overturning is not easy; and the shaft sleeve is arranged in the hinge hole, so that the force transmitted by the pin shaft can be uniformly distributed through the shaft sleeve, the pin shaft cannot be concentrated at a certain part, and the damage is not easy to occur.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to a single-column internal tilting steel tower horizontal splicing, pulling and vertical rotating device of a steel box girder cable-stayed bridge.
Background
With the progress of the age, the economic development and the improvement of the aesthetic level of the public, more and more bridge structures with unique shapes are in the field of view of the public. The cable-stayed bridge has been widely used in bridge industry by virtue of the characteristics of large span and attractive appearance, the cable-stayed bridge is generally constructed by adopting a vertical rotation method, the vertical rotation hinge is an important vertical rotation stress component, and the installation precision and the rotation smoothness of the cable-stayed bridge are directly related to the vertical rotation construction quality of the steel tower. Because the uniqueness of the structural design of the single-column internal tilting steel tower of the cable-stayed bridge of the steel box girder, the existing vertical rotating hinge cannot meet the stability and positioning accuracy required by the single-column steel tower during vertical rotation, so that a new vertical rotating hinge is required to be designed to meet the requirement of the single-column internal tilting steel tower vertical rotation construction.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide the single-column internal tilting steel tower horizontal splicing pulling up and vertical rotating device of the steel box girder cable-stayed bridge, which has high assembly precision, large bearing weight and smooth vertical rotation.
The utility model aims at solving the problems by the following technical scheme that the single-column internal tilting steel tower horizontal splicing pulling up and vertical rotating device of the steel box girder cable-stayed bridge comprises an upper hinged support arranged at the bottom of an upper steel tower section and a lower hinged support arranged at the top of a lower steel tower section, wherein the upper hinged support comprises two upper hinged lugs arranged side by side, a shaft sleeve is arranged in a hinged hole on the upper hinged lugs, the lower hinged support comprises four lower hinged lugs arranged side by side, wherein the two lower hinged lugs positioned in the middle position are coated into a whole through a connecting plate to form a hinged lug seat body, and the shaft sleeve is arranged in a hinged hole on the lower hinged lug seat; the two upper hinge lugs and the four lower hinge lugs are connected together by inserting pin shafts on the shaft sleeve.
The beneficial effects of the utility model are as follows: compared with the prior art, the lower hinged support is provided with four lower hinged ear supports, and compared with the conventional arrangement of two ear blocks or even one ear plate, the lower hinged support is better in bearing capacity, better in stability in the vertical rotation process and less prone to overturning; the shaft sleeve is arranged in the hinge hole, so that the force transmitted by the pin shaft can be uniformly distributed through the shaft sleeve, the pin shaft cannot be concentrated at a local position, and damage is not easy to occur; the two upper hinge lugs and the four lower hinge lugs are hinged, and the upper hinge lugs and the lower hinge lugs are pre-assembled, trial rotated and secondarily rotated before welding, so that the accuracy of welding and positioning of the hinge lugs is guaranteed, and the accurate positioning of the tower column and the tower root and the smoothness of rotation after vertical rotation are also guaranteed.
Preferably, two upper stiffening plates are arranged on one side of the upper hinged ear seat, and two upper stiffening connecting plates are arranged between the two upper hinged ear seats; the upper stiffening plate and the upper stiffening connecting plate can prevent the transverse bridge from causing the upper hinge ear seat to generate large displacement and stress.
Preferably, the upper stiffening connection plates and the upper stiffening plates are distributed in the same straight line; so that the transverse bridge force is always between the adjacent upper hinged ear seats, and the stress direction is always in the same direction.
Preferably, two lower stiffening connection plates are arranged between the hinged ear seat body and the lower hinged ear seat, and two lower stiffening plates are arranged on one side of the lower hinged ear seat positioned on two sides of the hinged ear seat body; the lower stiffening connecting plate and the lower stiffening plate can prevent the transverse bridge force from causing the lower hinge ear seat to generate large displacement and stress.
Preferably, the lower stiffening connection plates and the lower stiffening plates are distributed in the same straight line; so that the transverse bridge force is always between the adjacent lower hinged ear seats, and the stress direction is always in the same direction.
Preferably, the shaft sleeve comprises a lining cylinder and a self-lubricating graphite copper sleeve, the lining cylinder is fixed on the inner wall of the hinge hole, the self-lubricating graphite copper sleeve is mounted on the inner wall of the lining cylinder and is connected and fixed in an interference fit manner, and the pin shaft is inserted on the self-lubricating graphite copper sleeve; through the arrangement of the structure, the friction can be reduced by using the self-lubricating graphite copper sleeve in the shaft sleeve, the compression resistance is strong, the load is high, the replacement or maintenance is very convenient, if the shaft sleeve is damaged, only a new self-lubricating graphite copper sleeve needs to be replaced, the pin shaft does not need to be replaced, and the cost is greatly reduced.
Preferably, the tower crane further comprises a main tower hinged support of the pressure rod, wherein the main tower hinged support of the pressure rod is arranged on the side part of the upper steel tower section, and the main tower hinged support of the pressure rod and the upper hinged support are vertically distributed; the side part of the upper steel tower section is provided with the main tower hinge seat of the pressure lever, so that the pressure lever and the upper steel tower section are more convenient to install and are also convenient for the vertical rotation of the upper steel tower section, and meanwhile, the main tower hinge seat of the pressure lever and the upper hinge seat are vertically distributed, so that the vertical rotation between the upper steel tower section and the lower steel tower section is convenient, and the stress is more uniform.
Drawings
Fig. 1 is a schematic view of the upper hinge base structure of the present utility model.
Fig. 2 is a schematic view of the lower hinge base structure of the present utility model.
Fig. 3 is a schematic view showing a connection structure between the upper and lower hinge brackets of the present utility model.
Fig. 4 is a schematic diagram of a practical structure of a vertical rotation device of the present utility model.
The reference numerals in the drawings are respectively: 1. a steel tower section is arranged; 2. a lower steel tower section; 3. a hinge hole; 4. a shaft sleeve; 5. a pin shaft; 6. a main tower hinged support of the compression bar; 41. a liner; 42. self-lubricating graphite copper sleeve; 200. an upper hinge support; 201. an upper hinge ear seat; 202. an upper stiffening plate; 203. an upper stiffening connection plate; 300. a lower hinge support; 301. a lower hinged ear seat; 302. a connecting plate; 303. the ear seat body is hinged; 304. a lower stiffening connection plate; 305. and a lower stiffening plate.
Detailed Description
The utility model will be described in detail below with reference to the attached drawings: as shown in fig. 1 to 3, the present utility model comprises an upper hinge support 200 welded at the bottom of an upper steel tower segment 1 and a lower hinge support 300 welded at the top of a lower steel tower segment 2, wherein the upper hinge support 200 comprises two upper hinge lugs 201 arranged side by side, a shaft sleeve 4 is installed in a hinge hole 3 on the upper hinge lugs 201, the lower hinge support 300 comprises four lower hinge lugs 301 arranged side by side, wherein the two lower hinge lugs 301 positioned in the middle position are coated into a whole through a connecting plate 302 and form a hinge lug support body 303, and the shaft sleeve 4 is installed in the hinge hole 3 on the lower hinge lug support 301; the two upper hinging lugs 201 and the four lower hinging lugs 301 are connected together by being inserted on the shaft sleeve 4 through the pin shaft 5; both ends of the pin shaft 5 are provided with clamping plates, and the pin shaft 5 after being installed can be prevented from generating transverse displacement through the clamping plates, namely slipping off the shaft sleeve 4.
Two upper stiffening plates 202 are arranged on one side of the upper hinged ear seat 201 in a welding mode, and two upper stiffening connecting plates 203 are arranged between the two upper hinged ear seats 201 in a welding mode; the upper stiffening connection plates 203 and the upper stiffening plates 202 are distributed in the same straight line.
Two lower stiffening connection plates 304 are arranged between the hinged ear seat 303 and the lower hinged ear seat 301 in a welding mode, and two lower stiffening plates 305 are arranged on one side of the lower hinged ear seat 301 positioned on two sides of the hinged ear seat 303 in a welding mode; the lower stiffening connection plates 304 and the lower stiffening plates 305 are arranged in the same straight line. The lower stiffening plate 305 is arranged from the top end face of the lower steel tower segment 2 to the top end face of the lower hinge ear seat 301, and the stress direction of the lower hinge ear seat 301 positioned at two sides of the hinge ear seat body 303 is inclined downwards, so that the width of the lower stiffening plate 305 gradually becomes smaller from bottom to top and is in a right-angle trapezoid shape, and the lower stiffening plate is arranged in such a way that the material consumption can be saved and the cost can be reduced under the condition of ensuring the strength.
The shaft sleeve 4 comprises a lining 41 and a self-lubricating graphite copper sleeve 42, the lining 41 is fixed on the inner wall of the hinge hole 3, the self-lubricating graphite copper sleeve 42 is installed on the inner wall of the lining 41 and is fixedly connected in an interference fit mode, and the pin shaft 5 is inserted into the self-lubricating graphite copper sleeve 42.
The vertical rotating device further comprises a main pressure rod tower hinged support 6, the main pressure rod tower hinged support 6 is arranged at the side part of the upper steel tower segment 1, and the main pressure rod tower hinged support 6 and the upper hinged support 200 are vertically distributed.
As shown in fig. 4, the installation mode of the utility model is as follows: the steel tower column is divided into ten sections, which are marked as T1-T10 from bottom to top. The vertical rotating device is arranged on the T5 section, and is embedded after the 3m steel tower section rotating body is completed. The upper hinge support 200 and the lower hinge support 300 are of double-hinge structures, the upper rotating hinge is welded on the steel tower T6 section diaphragm plate, and the lower rotating hinge is welded on the steel tower T4 section diaphragm plate.
In order to ensure that the steel tower and the tower root can be accurately positioned after vertical rotation, the vertical rotation device rotates smoothly, a reasonable assembly scheme is adopted, and trial rotation is carried out before and after welding. The T4 section and the T6 section are assembled together before the vertical rotation device is installed, the T4 section and the T6 section are temporarily fixed through the horse plate, the upper hinge support and the lower hinge support are assembled together through the pin shaft, and then the upper hinge support and the lower hinge support which are assembled into a whole are assembled to the corresponding positions on the sectional line of the tower column and the corresponding positions on the upper line and the lower line according to the drawing requirement for temporary fixation, and trial rotation is carried out. And if the installation position is accurate and the rotation of the rotating hinge is smooth, welding the vertical rotation device. And (3) carrying out trial rotation again on the T6 section of the tower column after welding is finished, so that the welding deformation is ensured to have no influence on the rotation of the vertical rotation device.
The present utility model is not limited to the above embodiments, and any modification of the structural design provided by the present utility model, regardless of any changes in shape or material composition, should be considered as being within the scope of the present utility model.
Claims (7)
1. The utility model provides a steel case roof beam cable-stay bridge single column internal tilting steel tower crouches to splice and pull and erects and change device, includes last free bearing (200) of installing in last steel tower section (1) bottom and installs lower free bearing (300) at lower steel tower section (2) top, its characterized in that: the upper hinge support (200) comprises two upper hinge ear supports (201) which are arranged side by side, a shaft sleeve (4) is arranged in a hinge hole (3) on the upper hinge ear supports (201), the lower hinge support (300) comprises four lower hinge ear supports (301) which are arranged side by side, wherein the two lower hinge ear supports (301) which are positioned in the middle position are coated into a whole through a connecting plate (302) to form a hinge ear support body (303), and the shaft sleeve (4) is arranged in the hinge hole (3) on the lower hinge ear support (301); the two upper hinge ear seats (201) and the four lower hinge ear seats (301) are connected together by being inserted on the shaft sleeve (4) through the pin shafts (5).
2. The steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and erecting device according to claim 1, wherein: two upper stiffening plates (202) are arranged on one side of the upper hinged ear seat (201), and two upper stiffening connecting plates (203) are arranged between the two upper hinged ear seats (201).
3. The steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and erecting device according to claim 2, wherein: the upper stiffening connecting plates (203) and the upper stiffening plates (202) are distributed in the same straight line.
4. The steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and erecting device according to claim 1, wherein: two lower stiffening connection plates (304) are arranged between the hinge ear seat body (303) and the lower hinge ear seat (301), and two lower stiffening plates (305) are arranged on one side of the lower hinge ear seat (301) positioned on two sides of the hinge ear seat body (303).
5. The steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and erecting device according to claim 4, wherein: the lower stiffening connection plates (304) and the lower stiffening plates (305) are distributed in the same straight line.
6. The steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and erecting device according to claim 1, wherein: the shaft sleeve (4) comprises a lining cylinder (41) and a self-lubricating graphite copper sleeve (42), the lining cylinder (41) is fixed on the inner wall of the hinge hole (3), the self-lubricating graphite copper sleeve (42) is installed on the inner wall of the lining cylinder (41) and is fixedly connected in an interference fit mode, and the pin shaft (5) is inserted on the self-lubricating graphite copper sleeve (42).
7. The steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and erecting device according to claim 1, wherein: the novel tower crane is characterized by further comprising a main tower hinge support (6) of the pressure lever, wherein the main tower hinge support (6) of the pressure lever is arranged on the side part of the upper steel tower section (1), and the main tower hinge support (6) of the pressure lever and the upper hinge support (200) are vertically distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320678488.8U CN219653544U (en) | 2023-03-31 | 2023-03-31 | Steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and vertical rotating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320678488.8U CN219653544U (en) | 2023-03-31 | 2023-03-31 | Steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and vertical rotating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219653544U true CN219653544U (en) | 2023-09-08 |
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ID=87858998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320678488.8U Active CN219653544U (en) | 2023-03-31 | 2023-03-31 | Steel box girder cable-stayed bridge single-column internal tilting steel tower horizontal splicing, pulling and vertical rotating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219653544U (en) |
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2023
- 2023-03-31 CN CN202320678488.8U patent/CN219653544U/en active Active
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