CN219886587U - Swivel device of solid web cantilever steel beam in swivel bridge - Google Patents
Swivel device of solid web cantilever steel beam in swivel bridge Download PDFInfo
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- CN219886587U CN219886587U CN202321710507.7U CN202321710507U CN219886587U CN 219886587 U CN219886587 U CN 219886587U CN 202321710507 U CN202321710507 U CN 202321710507U CN 219886587 U CN219886587 U CN 219886587U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 166
- 239000010959 steel Substances 0.000 title claims abstract description 166
- 239000007787 solid Substances 0.000 title claims abstract description 20
- 238000005192 partition Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 17
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 244000035744 Hura crepitans Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a turning device of a solid cantilever girder in a turning bridge, which is positioned at the bottom of a pier, and adopts solid cantilever girders and supporting feet to provide lateral support for the turning bridge, wherein the cantilever girders are arranged at every 30 degrees, 45 degrees or 60 degrees, the solid cantilever girders are connected with the turning bridge by adopting steel sleeves, rib plates are arranged at the inner sides of the steel sleeves, and holes through which bolts can pass are formed at the joints of the steel sleeves and the cantilever girders. The utility model has the advantages that: the cantilever steel beam transversely adopts an inner ring beam and an outer ring beam to realize the integral effect, and the steel sleeve can be used as a template; when the bridge is turned, the steel stranded wires are wound in the middle of the outer sides of the end parts of the outer ring beam and the cantilever steel beam to provide power for the bridge turning; the structure is reasonable in stress and convenient to construct, the concrete pouring volume of the swivel structure is effectively reduced, the stability of the swivel structure is improved, the recyclable swivel structure part can be realized, the green sustainable development concept of the building is reflected, and the innovation and development of bridge swivel engineering are facilitated.
Description
Technical Field
The utility model relates to the technical field of bridges, in particular to a swivel device for a solid cantilever steel beam in a swivel bridge.
Background
At present, a plurality of engineering constructions need swivel construction technology as support, the swivel construction is more applied to bridge engineering constructions of mountain canyons, and has wide application in overpass engineering constructions of overpasses in vast cities, plays an important role, not only can adapt to bridge construction under special conditions very fast, but also can provide guarantee for the progress and quality of engineering to a great extent, the technology can realize fast crossing over existing traffic lines, has little influence on lower line operation, and is an important engineering technology indispensable in the construction of railways and highway bridges at present.
The bridge rotating system mainly comprises a lower bearing platform, a spherical hinge, a slideway, supporting feet, an upper bearing platform, a turntable and a traction system. In order to ensure the stability of the swivel structure, the overturning prevention and the supporting device are of vital importance, so that the upper bearing platform needs enough thickness, thereby increasing the engineering quantity and the swivel weight, and simultaneously deepening the depth of the foundation pit and increasing the additional manufacturing cost.
Therefore, it is necessary to provide a novel bridge swivel support device, which can reduce the amount of concrete pouring engineering and improve the stability of a swivel structure.
Disclosure of Invention
The utility model aims to solve the problems in the background art and provides a swivel device for a solid cantilever steel beam in a swivel bridge.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the swivel device of the solid web cantilever steel beam in the swivel bridge is positioned at the bottom of a pier and comprises a spherical hinge, a cantilever steel beam, a steel sleeve, supporting feet, a slideway, an outer ring beam, an inner ring beam and a traction cable;
the spherical hinge comprises an upper spherical hinge and a lower spherical hinge, the upper spherical hinge and the lower spherical hinge are arranged at the bottom of a pier or the top of a bearing platform, the steel sleeve is arranged at the lower part of the pier, the cantilever steel beams are arranged along the outer side of the pier at intervals of 45 degrees or 60 degrees or 90 degrees, one ends of the cantilever steel beams are fixed on the steel sleeve, the lower parts of the other ends of the cantilever steel beams are fixed with supporting feet, and the traction ropes are wound on the outer side of the outer ring beam.
As a preferable scheme, the steel sleeve is wrapped outside the pier, a vertical partition plate and a transverse rib plate are arranged inside the steel sleeve, and an end plate for connecting with the cantilever steel beam is arranged outside the steel sleeve; holes are formed in the joint of the end plate of the steel sleeve and the cantilever steel beam and are used for high-strength bolt connection.
As a preferable scheme, the cantilever steel beam is an I-shaped or box-shaped section or a groove-shaped section, and a stiffening rib is arranged at the web plate of the cantilever steel beam.
As a preferable scheme, the vertical partition plate and the transverse rib plate of the steel sleeve are provided with holes of 5 cm-30 cm, steel bars are arranged in the bridge pier, holes are formed in the crossing parts of the steel bars, the vertical partition plate and the transverse rib plate, and the steel bars penetrate through the holes.
As a preferable scheme, the supporting feet consist of a single steel pipe or double steel pipes, the double steel pipes are connected through two flat steel plates, and concrete is filled in the steel pipes or vertical stiffening ribs are arranged in the steel pipes; the joint of the supporting feet and the cantilever steel beam is provided with bolt holes, and the supporting feet and the cantilever steel beam are connected by adopting high-strength bolts.
As a preferable scheme, the cantilever steel beam is provided with a plurality of inner ring beams at the midspan part, the overhanging distal end is provided with an outer ring beam, the inner ring beam adopts an I-shaped, box-shaped or groove-shaped section, and the outer ring beam adopts an I-shaped, box-shaped or groove-shaped section.
As a preferable scheme, holes are formed in the joints of the inner ring beam, the outer ring beam and the cantilever steel beam and are used for high-strength bolt connection.
As a preferable scheme, grooves for preventing the traction ropes from sliding out are formed in the outer side of the outer ring beam and the outer side of the end part of the cantilever steel beam.
As a preferable scheme, the lower part of the pier extends out of the vertical steel bar, the vertical steel bar is arranged on the upper part of the bearing platform corresponding to the vertical steel bar of the pier, and the pier is connected with the vertical steel bar of the bearing platform after the swivel is completed.
Compared with the prior art, the utility model has the advantages that: the material and the type of the supporting device are improved, the manufacture of an upper bearing platform is omitted, and meanwhile, the supporting device moves outwards, so that the length of a force arm is increased, and the stability of a rotating body structure is further improved; the construction efficiency of the turntable concrete at the bottom of the bridge pier can be effectively reduced, the bridge pier is more economical and reliable, the length of a moment arm of a supporting system is enlarged, and the stability of a rotating body T structure is improved; the steel sleeve can be used as a template; when the bridge is turned, the steel stranded wires are wound in the middle of the outer sides of the end parts of the outer ring beam and the cantilever steel beam to provide power for the bridge turning; the structure is reasonable in stress and convenient to construct, the concrete pouring volume of the swivel structure is effectively reduced, the stability of the swivel structure is improved, the recyclable swivel structure part can be realized, the green sustainable development concept of the building is reflected, and the innovation and development of bridge swivel engineering are facilitated.
Drawings
Fig. 1 is a schematic view of the structure of the swivel device of the present utility model.
Fig. 2 is a schematic diagram of the connection structure of the cantilever steel beam and the steel sleeve according to the present utility model.
Fig. 3 is a schematic structural view of a cantilever beam segment of the present utility model.
FIG. 4 is a schematic structural view of an outer race ring beam segment of the present utility model.
Fig. 5 is a schematic view of the construction of an inner ring beam segment of the present utility model.
Fig. 6 is a schematic diagram of a connection structure of the steel sleeve and the pier according to the present utility model.
Fig. 7 is a schematic diagram of the arrangement of the steel sleeve and the pedestal reinforcement of the lower bearing platform.
Fig. 8 is a schematic view of the structure of the temple of the present utility model.
As shown in the figure: 11-turning a T structure; 12-a steel sleeve; 21-cantilever steel beams; 22-supporting feet; 23-a slideway; 24-an inner ring beam; 25-an outer ring beam; 31-a lower bearing platform; 32-a counterforce seat; 33-traction rope.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present utility model, "plurality" means at least 2.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to the attached drawings, the swivel device of the solid web cantilever steel beam in the swivel bridge is positioned at the bottom of a pier and comprises a spherical hinge, a cantilever steel beam 21, a steel sleeve 12, supporting feet 22, a slideway 23, an outer ring beam 25, an inner ring beam 24 and a traction rope 33;
the spherical hinge comprises an upper spherical hinge and a lower spherical hinge, the upper spherical hinge and the lower spherical hinge are arranged at the bottom of a pier or at the top of a bearing platform, the steel sleeve 12 is arranged at the lower part of the pier, the cantilever steel beams 21 are arranged along the outer side of the pier at intervals of 45 degrees or 60 degrees or 90 degrees, one ends of the cantilever steel beams 21 are fixed on the steel sleeve 12, the lower parts of the other ends of the cantilever steel beams 21 are fixed with supporting feet 22, and the traction ropes 33 are wound on the outer side of the outer ring beam 25.
The steel sleeve 12 is wrapped outside the bridge pier, a vertical partition plate and a transverse rib plate are arranged inside the steel sleeve 12, and an end plate for connecting with the cantilever steel beam 21 is arranged outside the steel sleeve 12; holes are formed at the joint of the end plate of the steel sleeve 12 and the cantilever steel beam 21 for high-strength bolt connection.
The cantilever steel beam 21 is an I-shaped or box-shaped section or a groove-shaped section, and a stiffening rib is arranged at a web plate of the cantilever steel beam 21.
The vertical partition plate and the transverse rib plate of the steel sleeve 12 are provided with holes of 5 cm-30 cm, steel bars are arranged in the bridge pier, holes are formed in the intersections of the steel bars, the vertical partition plate and the transverse rib plate, and the steel bars penetrate through the holes.
The supporting feet 22 are composed of a single steel pipe or double steel pipes, the double steel pipes are connected through two flat steel plates, and concrete is filled in the steel pipes or vertical stiffening ribs are arranged in the steel pipes; the joint of the supporting feet 22 and the cantilever steel beam 21 is provided with bolt holes, and the supporting feet 22 and the cantilever steel beam 21 are connected by high-strength bolts.
The cantilever steel beam 21 is provided with a plurality of inner ring beams 24 at the midspan part, the overhanging distal end is provided with an outer ring beam 25, the inner ring beam 24 adopts an I-shaped, box-shaped or groove-shaped section, and the outer ring beam 25 adopts an I-shaped, box-shaped or groove-shaped section.
Holes are formed in the joints of the inner ring beam 24, the outer ring beam 25 and the cantilever steel beam 21 and are used for high-strength bolt connection.
Grooves for preventing the traction ropes from sliding out are formed in the outer side of the outer ring beam 25 and the outer side of the end part of the cantilever steel beam 21.
The lower part of the pier stretches out of the vertical steel bars, the vertical steel bars are arranged on the upper part of the bearing platform corresponding to the vertical steel bars of the pier, and the pier is connected with the vertical steel bars of the bearing platform after the swivel is completed.
The construction method of the swivel device of the solid web cantilever steel beam in the swivel bridge specifically comprises the following steps:
(1) Pile foundation construction: driving foundation pit protection steel pipe piles around the foundation pit, digging a bearing platform space downwards according to the designed height, digging pile holes by adopting a rotary digging machine, placing a reinforcement cage, and pouring pile foundation concrete;
(2) Pouring a bearing platform for the first time: binding reinforcing steel bars of the bearing platform, and then carrying out first concrete pouring on the bearing platform;
(3) The lower spherical hinge, the slideway installation and the bearing platform are poured for the second time: placing the support steel frame of the slideway and the spherical hinge after the concrete of the bearing platform reaches the specified strength, positioning the support steel frame of the slideway and the spherical hinge, binding the steel bars of the lower bearing platform, and finishing secondary concrete pouring of the bearing platform after the steel bars of the counter-force seat are bound, and then curing;
(4) And (3) installing an upper spherical hinge: cleaning sundries of the lower spherical hinge, paving a tetrafluoroethylene sliding block, coating butter for lubrication, hoisting the upper spherical hinge, and winding adhesive tapes at the gaps of the spherical hinge to prevent the sundries from entering;
(5) Installing a temporary fixing device: placing a sand box at a design position, and erecting a support frame of a steel sleeve;
(6) Steel sleeve, cantilever steel beam, spike installation: placing the support feet on a slideway according to a specified position, hoisting a cantilever steel beam, connecting the cantilever steel beam with a steel sleeve steel template by adopting a high-strength bolt, filling a rubber pad between the cantilever steel beam and the support feet, finely adjusting a gap, and then connecting the cantilever steel beam with the support feet by using the bolt;
(7) And splicing and installing the cantilever steel beam and the inner ring beam and the outer ring beam: after each cantilever steel beam is installed in place, connecting the cantilever steel beam with the inner ring beam and the outer ring beam by bolts;
(8) And (3) bridge pier construction: erecting a bridge pier template, binding reinforcing steel bars, checking the stability of the supporting device, pouring bridge pier concrete afterwards, removing a temporary fixing device sand box and a steel sleeve bracket at the bottom of the bridge pier after the bridge pier concrete meets the strength requirement, and starting bridge deck structure construction;
(9) And (3) girder construction: erecting a girder template scaffold, erecting a template, binding reinforcing steel bars, and then pouring girder concrete;
(10) And (3) installing a traction cable: a traction rope is arranged at the outer anchoring position of the outer ring beam and the cantilever steel beam, and the other end of the traction rope penetrates into traction machines on two sides of the bearing platform;
(11) And (3) rotating: checking the bolting conditions of the joint areas such as the steel sleeve, the cantilever steel beam, the inner ring and outer ring beams, the supporting feet and the like again before turning, slowly tensioning the traction rope after turning starts, observing the readings of the pressure sensor between the cantilever steel beam and the supporting feet in real time, and adjusting the counterweight in time when larger eccentricity occurs;
(12) And (5) pouring pedestal concrete: after the swivel is completed, welding the communicating steel bars at the lower part of the upper steel sleeve and the upper part of the lower bearing platform, distributing steel bars are distributed along the periphery of the steel sleeve, welding reserved steel bars of the lower bearing platform, erecting a pedestal template for pouring concrete, and after the concrete meets the strength requirement, removing the cantilever steel beams and the supporting feet, and recovering;
(13) Dismantling the cantilever steel beam and the supporting feet: after the bridge swivel is completed, the cantilever steel beam and the inner ring and outer ring beams are firstly removed, and then the supporting feet are removed and recovered.
In the concrete implementation of the utility model, the materials and types of the supporting device are improved, the manufacture of an upper bearing platform is omitted, and meanwhile, the supporting device moves outwards, so that the length of a force arm is increased, and the stability of the rotating body structure is further improved; the solid cantilever steel beam is connected with the swivel bridge by adopting a steel sleeve, the inner side of the steel sleeve is provided with a ribbed plate, the joint of the steel sleeve and the cantilever steel beam is provided with a hole through which a bolt can pass, the cantilever steel beam transversely adopts an inner ring beam and an outer ring beam to realize the integral effect, and the steel sleeve can be used as a template; when the bridge is turned, the steel stranded wires are wound in the middle of the outer sides of the end parts of the outer ring beam and the cantilever steel beam to provide power for the bridge turning; the structure is reasonable in stress and convenient to construct, the concrete pouring volume of the swivel structure is effectively reduced, the stability of the swivel structure is improved, the recyclable swivel structure part can be realized, the green sustainable development concept of the building is reflected, and the innovation and development of bridge swivel engineering are facilitated.
In the existing swivel construction, because the supporting feet and the slide way occupy the space at the bottom of the bridge pier, a larger upper bearing platform needs to be manufactured, the utility model can effectively reduce the concrete efficiency of the turntable at the bottom of the bridge pier, is more economical and reliable, simultaneously enlarges the length of the arm of force of the supporting system, and improves the stability of the swivel T-shaped structure 11.
The advantages of the utility model include:
1) The upper bearing platform of the swivel device can be omitted, and the engineering quantity is reduced.
2) The supporting device adopting the steel structure can effectively improve the construction efficiency.
3) The supporting device can be recycled.
4) The length of the force arm of the bottom supporting device is increased, and the overall stability is improved.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution will not be creatively devised without departing from the gist of the present utility model, and the structural manner and the embodiment are all intended to be within the protection scope of the present utility model.
Claims (9)
1. The utility model provides a device of turning of solid web formula cantilever girder steel in bridge of turning which characterized in that: the swivel device is positioned at the bottom of the bridge pier and comprises a spherical hinge, a cantilever steel beam, a steel sleeve, supporting feet, a slideway, an outer ring beam, an inner ring beam and a traction cable;
the spherical hinge comprises an upper spherical hinge and a lower spherical hinge, the upper spherical hinge and the lower spherical hinge are arranged at the bottom of a pier or the top of a bearing platform, the steel sleeve is arranged at the lower part of the pier, the cantilever steel beams are arranged along the outer side of the pier at intervals of 45 degrees or 60 degrees or 90 degrees, one ends of the cantilever steel beams are fixed on the steel sleeve, the lower parts of the other ends of the cantilever steel beams are fixed with supporting feet, and the traction ropes are wound on the outer side of the outer ring beam.
2. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: the steel sleeve is wrapped outside the bridge pier, a vertical partition plate and a transverse rib plate are arranged inside the steel sleeve, and an end plate for connecting with the cantilever steel beam is arranged outside the steel sleeve; holes are formed in the joint of the end plate of the steel sleeve and the cantilever steel beam and are used for high-strength bolt connection.
3. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: the cantilever girder steel is I-shaped or box-shaped section or groove-shaped section, and the web plate of the cantilever girder steel is provided with stiffening ribs.
4. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: the vertical partition plate and the transverse rib plate of the steel sleeve are provided with holes of 5 cm-30 cm, steel bars are arranged in the bridge pier, holes are formed in the intersections of the steel bars, the vertical partition plate and the transverse rib plate, and the steel bars penetrate through the holes.
5. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: the supporting feet consist of a single steel pipe or double steel pipes, the double steel pipes are connected through two flat steel plates, and concrete is filled in the steel pipes or vertical stiffening ribs are arranged in the steel pipes; the joint of the supporting feet and the cantilever steel beam is provided with bolt holes, and the supporting feet and the cantilever steel beam are connected by adopting high-strength bolts.
6. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: the cantilever steel beam is provided with a plurality of inner ring beams at the midspan part, the overhanging distal end is provided with an outer ring beam, the inner ring beam adopts an I-shaped, box-shaped or groove-shaped section, and the outer ring beam adopts an I-shaped, box-shaped or groove-shaped section.
7. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: holes are formed in the joints of the inner ring beam, the outer ring beam and the cantilever steel beam and are used for high-strength bolt connection.
8. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: grooves for preventing the traction ropes from sliding out are formed in the outer side of the outer ring beam and the outer side of the end part of the cantilever steel beam.
9. The swivel device for a solid cantilever beam in a swivel bridge according to claim 1, wherein: the lower part of the pier stretches out of the vertical steel bars, the vertical steel bars are arranged on the upper part of the bearing platform corresponding to the vertical steel bars of the pier, and the pier is connected with the vertical steel bars of the bearing platform after the swivel is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321710507.7U CN219886587U (en) | 2023-07-03 | 2023-07-03 | Swivel device of solid web cantilever steel beam in swivel bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321710507.7U CN219886587U (en) | 2023-07-03 | 2023-07-03 | Swivel device of solid web cantilever steel beam in swivel bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219886587U true CN219886587U (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321710507.7U Active CN219886587U (en) | 2023-07-03 | 2023-07-03 | Swivel device of solid web cantilever steel beam in swivel bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219886587U (en) |
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2023
- 2023-07-03 CN CN202321710507.7U patent/CN219886587U/en active Active
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