CN219218724U - Main girder hanging and paving integrated machine for combined girder cable-stayed bridge - Google Patents
Main girder hanging and paving integrated machine for combined girder cable-stayed bridge Download PDFInfo
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- CN219218724U CN219218724U CN202223553921.XU CN202223553921U CN219218724U CN 219218724 U CN219218724 U CN 219218724U CN 202223553921 U CN202223553921 U CN 202223553921U CN 219218724 U CN219218724 U CN 219218724U
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Abstract
The utility model discloses a main girder hanging and paving integrated machine for a combined girder cable-stayed bridge, which comprises a frame module, a longitudinal moving device and an anchoring device, wherein the longitudinal moving device is used for controlling the longitudinal movement of the frame module, and the anchoring device is used for fixing the frame module on a main girder of the cable-stayed bridge and also comprises a girder hanging module and a bridge deck paving module; the girder steel lifts by crane the module and lays the module together and set up on the frame module with the decking, and girder steel lifts by crane the front end that the module is located the frame module, and the decking lays the mould and is located the rear end of frame module, girder steel lifts by crane the girder steel that the module is used for hoisting the nth roof beam section, the decking lays the module and is used for laying the prefabricated decking of N-2 roof beam section. The integrated solution of two main working procedures of hoisting the steel girder and paving the concrete bridge deck is realized, the construction working face of the bridge is widened, the possible crossing of hoisting and paving operations is avoided, and the difficulty of construction organization is reduced.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a main girder hanging and paving integrated machine for a combined girder cable-stayed bridge.
Background
The combined beam cable-stayed bridge can fully utilize the tension and compression performance of concrete and steel structures, and is an important choice for medium-large span cable-stayed bridges. In order to reduce the bridge deck hanging weight and the limit of the transportation conditions under the bridge, a construction method of firstly hoisting steel beams and then paving bridge decks is generally adopted.
The construction method of the prior art of the girder steel after-bridge deck is mainly applied to the I-shaped girder and double-sided box girder forms, and the construction machinery mainly adopts a construction mode of lifting the girder steel by a bridge deck crane and lifting the bridge deck by an automobile crane. The construction method of the bridge deck crane and the automobile crane combination has the advantages of more construction devices, cross operation, mutual interference and complex construction operation arrangement.
To sum up: the construction of the main girder of the existing combined girder cable-stayed bridge requires multi-instrument cooperation operation, so that the construction method is complicated.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art, and provides a main girder hanging and paving integrated machine for a combined girder cable-stayed bridge, which is used for hanging steel girders and also can be used for hanging prefabricated bridge decks.
In order to solve the technical problems, the utility model adopts the following technical scheme: the girder hanging and paving integrated machine for the combined girder cable-stayed bridge comprises a frame module, a longitudinal moving device and an anchoring device, wherein the longitudinal moving device is used for controlling the frame module to longitudinally move, and the anchoring device is used for fixing the frame module on a girder of the cable-stayed bridge and also comprises a girder hanging module and a bridge deck paving module; the girder steel lifts by crane the module and lays the module together and set up on the frame module with the decking, and girder steel lifts by crane the front end that the module is located the frame module, and the decking lays the mould and is located the rear end of frame module, girder steel lifts by crane the girder steel that the module is used for hoisting the nth roof beam section, the decking lays the module and is used for laying the prefabricated decking of N-2 roof beam section.
As a further improvement of the above scheme:
the frame module comprises a main spandrel girder and a supporting leg module, wherein the main spandrel girder is a horizontal longitudinal girder, the supporting leg module is positioned on the middle girder section of the main spandrel girder, and the main spandrel girder is fixedly connected to the top of the supporting leg.
The landing leg module comprises a front landing leg and a rear landing leg, the front landing leg is close to the steel beam hoisting module, and the rear landing leg is close to the bridge deck laying module; the front support leg comprises a reinforcing cross beam which is horizontally and transversely fixedly connected between two vertical columns of the front support leg; the front support leg is provided with a reinforcing inclined rod, one end of the reinforcing inclined rod is fixedly connected with the reinforcing cross beam, the other end of the reinforcing inclined rod is fixedly connected with the upright post of the front support leg, and the front support leg is obliquely arranged between the upright post of the front support leg and the reinforcing cross beam; the rear supporting legs comprise upright posts symmetrically arranged on two sides of the main spandrel girder; and a reinforcing longitudinal beam which is longitudinally and horizontally arranged is fixedly connected between the front supporting leg and the rear supporting leg.
The bridge deck laying module comprises a lifting beam and an auxiliary lifting system, wherein the lifting beam is connected to a cantilever beam section of the main spandrel girder, which is positioned behind the supporting leg module, and can longitudinally slide along the main spandrel girder; the auxiliary lifting system is connected below the lifting cross beam in a sliding manner and can slide transversely along the lifting cross beam; and the lower end of the auxiliary lifting system is provided with an electric hoist for lifting the bridge deck.
The steel beam hoisting module comprises a main hoisting system and an amplitude variation mechanism, wherein the main hoisting system is used for hoisting a steel beam and is arranged at the front end of a main spandrel girder; the amplitude variation mechanism is arranged above the main spandrel girder.
The front supporting leg is fixedly connected with a reinforcing inclined beam between the front supporting leg and the main supporting beam, one end of the reinforcing inclined beam is fixedly connected with the front supporting leg, and the other end of the reinforcing inclined beam is fixedly connected with the bottom of the cantilever beam section at the front end of the main supporting beam.
The anchoring devices are arranged at the lower ends of the stand columns in the leg modules.
The vertical moving device comprises a running track and a jack, wherein the running track is detachably and fixedly connected to the main beam, one end of the jack is detachably and fixedly connected with the running track, and the other end of the jack is detachably and fixedly connected with the frame module.
Compared with the prior art, the utility model has the advantages that: the utility model realizes the integrated solution of two main working procedures of hoisting the steel girder and paving the concrete bridge deck, widens the construction working face of the bridge, avoids the possible crossing of hoisting and paving operations, and reduces the difficulty of construction organization. The frame module is shared by the steel beam hoisting module and the bridge deck laying module, so that the problems of overlarge local stress and the like caused by random movement of an uncombined beam section by adopting an automobile crane are avoided. The front pivot of the integrated machine is pressed when the steel girder is hoisted, the rear pivot is subjected to upward pulling force, the bridge deck is hoisted to form pressure at the rear anchor point, the upward pulling force of the rear anchor point can be effectively reduced after the two are counteracted, and the structural stress is more reasonable.
Drawings
Fig. 1 is a schematic side view of a girder suspension and paving integrated machine according to an embodiment of the present utility model.
Fig. 2 is a schematic front view of the front leg structure in an embodiment of the utility model.
Fig. 3 is a schematic front view of the rear leg structure in an embodiment of the present utility model.
Fig. 4 is a schematic enlarged view of the structure of the longitudinally moving device in fig. 1.
The reference numerals in the drawings denote:
1. a rack module; 11. a main load beam; 12. a leg module; 121. a front leg; 122. a rear leg; 13. reinforcing the cross beam; 14. reinforcing the longitudinal beam; 15. reinforcing the diagonal rods; 2. a longitudinally moving device; 21. a running track; 22. a jack; 23. bolt holes; 3. an anchoring device; 31. a pressed support; 32. pulling-resistant anchoring; 4. a steel beam hoisting module; 41. a main lifting system; 42. an amplitude variation mechanism; 5. a bridge deck paving module; 51. lifting the cross beam; 52. an auxiliary lifting system; 53. an electric hoist; 6. a steel beam; 61. a small longitudinal beam; 7. prefabricating bridge decks; 8. reinforcing the oblique beam.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples.
Fig. 1 to 4 show a girder suspension and paving integrated machine for a composite girder cable-stayed bridge, which comprises a frame module 1, a longitudinal moving device 2 and an anchoring device 3, wherein the longitudinal moving device 2 is used for controlling the frame module 1 to longitudinally move, and the anchoring device 3 is used for fixing the frame module 1 on a girder of the cable-stayed bridge and also comprises a girder suspension module 4 and a bridge deck paving module 5; the girder steel lifts by crane the module 4 and sets up on frame module 1 together with the module 5 is laid to the decking, and girder steel lifts by crane the module 4 and is located frame module 1's front end, and the module is laid to the decking and is located frame module 1's rear end, girder steel lifts by crane the module 4 and is used for hoisting girder steel 6 of the N girder section, the module 5 is laid to the decking is used for laying the prefabricated decking 7 of N-2 girder section.
Through this structure, realized that steel girder hoist and mount and concrete deck board lay two main processes integration solutions, widened the construction working face of bridge, avoided hanging, shop operation can exist alternately, reduced the degree of difficulty of construction organization. The girder steel lifting module 4 and the bridge deck laying module 5 share one frame module 1, so that the problems of overlarge local stress and the like caused by random movement of an uncombined girder section by adopting an automobile crane are avoided.
In this embodiment, the rack module 1 includes a main spandrel girder 11 and a leg module 12, the main spandrel girder 11 is a horizontal longitudinal girder, the leg module 12 is located in a middle girder section of the main spandrel girder 11, and the main spandrel girder 11 is fixedly connected to the top of the leg. Through this structure, the fulcrum is pressed before the steel girder hoist and mount the integrated machine of hanging, and the back fulcrum receives the power of pulling up, and the decking hoist and mount can form pressure at the back anchor point, and the power of pulling up of back anchor point can effectively be reduced after the two offsets, and structural stress is more reasonable.
In this embodiment, the leg module 12 includes a front leg 121 and a rear leg 122, the front leg 121 is close to the steel beam hoisting module 4, and the rear leg 122 is close to the bridge deck laying module 5; the front support leg 121 comprises a reinforcing cross beam 13, and the reinforcing cross beam 13 is horizontally and transversely fixedly connected between two upright posts of the front support leg 121; the front support leg 121 is provided with a reinforcing inclined rod 15, one end of the reinforcing inclined rod 15 is fixedly connected with the reinforcing cross beam 13, the other end of the reinforcing inclined rod is fixedly connected with the upright post of the front support leg 121, and the reinforcing inclined rod is obliquely arranged between the upright post of the front support leg 121 and the reinforcing cross beam 13; the rear supporting leg 122 comprises upright posts symmetrically arranged at two sides of the main spandrel girder 11; a reinforcing longitudinal beam 14 which is longitudinally and horizontally arranged is fixedly connected between the front supporting leg 121 and the rear supporting leg 122.
In this configuration, because the front leg 121 is opposite the rear leg 122. The steel beam 6 is subjected to larger stress when being hoisted, so that the structure of the front supporting leg 121 is reinforced by arranging the reinforcing cross beam 13 on the reinforcing diagonal rod 15, so that the structural stability of the frame module 1 is enhanced; the reinforcing diagonal rods 15 take the upright posts of the front supporting legs 121 as symmetrical centers, 2 reinforcing diagonal rods 15 are symmetrically arranged on the upright posts of each front supporting leg 121 left and right, and triangular supports are formed between the reinforcing cross beam 13 and the upright posts of the front supporting legs 121 so as to achieve a better reinforcing effect.
In this embodiment, the bridge deck laying module 5 includes a lifting beam 51 and an auxiliary lifting system 52, where the lifting beam 51 is slidably connected to a cantilever beam section of the main spandrel girder 11 located behind the supporting leg module 12, and can longitudinally slide along the main spandrel girder 11; the auxiliary lifting system 52 is slidably connected below the lifting beam 51 and can slide transversely along the lifting beam 51; the lower end of the auxiliary lifting system 52 is provided with an electric hoist 53 for hoisting the bridge deck. By the structure, when the bridge deck slab is hoisted by the bridge deck slab paving module 5, the longitudinal sliding of the main spandrel girder 11 can be controlled to control the longitudinal movement of the bridge deck slab, and the transverse sliding of the auxiliary lifting system 52 can be controlled to control the transverse movement of the bridge deck slab, so that the bridge deck slab can be positioned and placed conveniently.
In this embodiment, the steel beam hoisting module 4 includes a main hoisting system 41 and an amplitude variation mechanism 42, where the main hoisting system 41 is used for hoisting the steel beam 6, and is disposed at the front end of the main spandrel girder 11; the horn 42 is arranged above the main bolster 11. In this structure, the main hoisting system 41 may adopt a conventional steel beam hoisting device structure for the hoisted steel beam 6, including a pulley block, a hoist, etc., so as to implement hoisting of the steel beam 6.
In this embodiment, a reinforcing oblique beam 8 is fixedly connected between the front supporting leg 121 and the main spandrel girder 11, one end of the reinforcing oblique beam 8 is fixedly connected with the front supporting leg 121, and the other end is fixedly connected with the main spandrel girder 11 at the bottom of the front cantilever beam section.
In this embodiment, the anchoring devices 3 are provided at the lower ends of the columns in the leg module 12. In this structure, the anchoring means comprises two compression supports 31 arranged outside the support legs and two anti-pulling anchors 32 arranged between the compression supports 31; the frame module 1 is fixed above the main beams by the combined action of the compressive support 31 and the anti-pulling anchors 32.
In this embodiment, the longitudinal moving device 2 includes a running track 21 and a jack 22, where the running track 21 is detachably connected and fixed on the main beam, and one end of the jack is fixedly connected with the running track, and the other end of the jack is fixedly connected with the frame module. In this configuration. The jack 22 is fixedly connected with the running rail 21 through bolt holes 23, and a plurality of groups of bolt holes 23 are formed in the running rail 21. After the lifting and paving work of the steel beam 6 at the current position and the paving work of the bridge deck are completed by the lifting and paving integrated machine, the connection between the running rail 21 and the frame module 1 and the connection between the running rail 21 and the bridge deck are released, the jack 22 moves the running rail 21 forwards by one stroke section, the jack 22 and the running rail 21 are connected by a group of bolt holes 23, and the operation is repeated until the running rail 21 reaches a preset position, and then the running rail 21 and the bridge deck are locked. Then, the connection between the frame module 1 and the main beam is released, so that the frame module 1 directly acts on the running track 21, the jack 22 works to push the frame module 1 forward, and the anchoring device 3 is lowered to lock with the main beam after the frame module 1 is pushed to the position. And starting the next-stage hanging and laying work.
The following is a further supplementary explanation of the device in combination with the application of the device to a construction method of a PK section composite beam cable-stayed bridge for asynchronous construction.
S1, paving the main girder suspension and paving all-in-one machine for the combined girder cable-stayed bridge on the 1 st girder section after the construction of the 1 st girder section in the cable tower and the near cable tower area is completed. Wherein, the roof of girder steel 6 is equipped with little longeron 61 in advance, strengthens girder steel 6's section modulus on the one hand. On the other hand, the running rail 21 in the longitudinal moving device 2 can be erected on the small longitudinal beam 61, so that the construction of temporary measures is reduced, and the construction efficiency is improved.
The frame module 1 can be installed in a segmented mode, the rear cantilever section of the main spandrel girder 11 can be installed later according to requirements, and the device is suitable for hoisting the steel girder by assembling the steel girder hoisting module 4 when the installation space of an early-stage hoisting and paving integrated machine for cable-stayed bridge cantilever construction is insufficient; and when enough installation space is provided on the main beam, installing the bridge deck pavement module 5 again to hoist the prefabricated bridge deck 7.
S2, hoisting the steel beam 6 by controlling the steel beam hoisting module 4, controlling the girder hoisting and paving integrated machine to move forward by controlling the longitudinal moving module after the steel beam 6 is hoisted, moving the girder hoisting and paving integrated machine forward to the third girder section after the steel beam 6 of the third girder section is hoisted, paving the prefabricated bridge deck 7 of the 2 nd girder section by the bridge deck paving module 5, simultaneously controlling the steel beam hoisting module 4 to hoist the steel beam 6 of the 4 th girder section, and repeating the steps until all girder sections are hoisted.
And S3, finally hoisting the centering closure section and the side closure section, dismantling the steel beam hoisting module 4 after the bridge deck construction is completed, hoisting the steel beam 6 and carrying out subsequent construction.
While the utility model has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.
Claims (8)
1. The utility model provides a girder hanging and paving all-in-one for combination beam cable-stayed bridge, includes frame module (1), indulges and moves device (2) and anchor (3), indulge and move device (2) are used for controlling frame module (1) longitudinal movement, anchor (3) are used for fixing frame module (1) on the girder of cable-stayed bridge, its characterized in that: the bridge deck slab laying system further comprises a steel beam hoisting module (4) and a bridge deck slab laying module (5); the girder steel lifts by crane module (4) and deck slab and lays module (5) together set up on frame module (1), girder steel lifts by crane module (4) and is located the front end of frame module (1), and deck slab lays the mould and is located the rear end of frame module (1), girder steel lifts by crane module (4) and is used for hoisting girder steel (6) of the N girder segment, deck slab lays module (5) and is used for laying prefabricated deck slab (7) of N-2 girder segment.
2. The main girder suspension and paving integrated machine for a composite girder cable-stayed bridge according to claim 1, wherein: the frame module (1) comprises a main spandrel girder (11) and a supporting leg module (12), wherein the main spandrel girder (11) is a horizontal longitudinal girder, the supporting leg module (12) is positioned at the middle girder section of the main spandrel girder (11), and the main spandrel girder (11) is fixedly connected to the top of the supporting leg.
3. The main girder suspension and paving integrated machine for the composite girder cable-stayed bridge according to claim 2, wherein: the landing leg module (12) comprises a front landing leg (121) and a rear landing leg (122), the front landing leg (121) is close to the steel beam hoisting module (4), and the rear landing leg (122) is close to the bridge deck laying module (5); the front support leg (121) comprises a reinforcing cross beam (13), and the reinforcing cross beam (13) is horizontally and fixedly connected between two upright posts of the front support leg (121); the front support leg (121) is provided with a reinforcing inclined rod (15), one end of the reinforcing inclined rod (15) is fixedly connected with the reinforcing cross beam (13), the other end of the reinforcing inclined rod is fixedly connected with the upright post of the front support leg (121), and the reinforcing inclined rod is obliquely arranged between the upright post of the front support leg (121) and the reinforcing cross beam (13); the rear supporting legs (122) comprise upright posts symmetrically arranged on two sides of the main spandrel girder (11); a reinforcing longitudinal beam (14) which is longitudinally and horizontally arranged is fixedly connected between the front supporting leg (121) and the rear supporting leg (122).
4. A main girder suspension and paving integrated machine for a composite girder cable-stayed bridge according to claim 3, wherein: the bridge deck laying module (5) comprises a lifting cross beam (51) and an auxiliary lifting system (52), wherein the lifting cross beam (51) is connected to a cantilever beam section of the main spandrel girder (11) positioned behind the supporting leg module (12) in a sliding manner and can longitudinally slide along the main spandrel girder (11); the auxiliary lifting system (52) is connected below the lifting cross beam (51) in a sliding manner and can slide transversely along the lifting cross beam (51); the lower end of the auxiliary lifting system (52) is provided with an electric hoist (53) for lifting the bridge deck.
5. A main girder suspension and paving integrated machine for a composite girder cable-stayed bridge according to claim 3, wherein: the steel beam lifting module (4) comprises a main lifting system (41) and an amplitude variation mechanism (42), wherein the main lifting system (41) is used for lifting the steel beam (6) and is arranged at the front end of the main spandrel girder (11); the amplitude variation mechanism (42) is arranged above the main spandrel girder (11).
6. The main girder suspension and paving integrated machine for a composite girder cable-stayed bridge according to claim 5, wherein: the front support leg (121) and the main spandrel girder (11) are fixedly connected with a reinforcing oblique girder (8), one end of the reinforcing oblique girder (8) is fixedly connected with the front support leg (121), and the other end of the reinforcing oblique girder is fixedly connected with the bottom of the front cantilever girder section of the main spandrel girder (11).
7. A main girder suspension and paving integrated machine for a composite girder cable-stayed bridge according to claim 3, wherein: the anchoring device (3) is arranged at the lower end of each upright post in the supporting leg module (12).
8. A main girder suspension and paving integrated machine for a composite girder cable-stayed bridge according to claim 3, wherein: the vertical moving device (2) comprises a running track (21) and a jack (22), wherein the running track (21) is detachably and fixedly connected to the main beam, one end of the jack (22) is detachably and fixedly connected with the running track (21), and the other end of the jack is detachably and fixedly connected with the frame module (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223553921.XU CN219218724U (en) | 2022-12-27 | 2022-12-27 | Main girder hanging and paving integrated machine for combined girder cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223553921.XU CN219218724U (en) | 2022-12-27 | 2022-12-27 | Main girder hanging and paving integrated machine for combined girder cable-stayed bridge |
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| CN219218724U true CN219218724U (en) | 2023-06-20 |
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| CN202223553921.XU Active CN219218724U (en) | 2022-12-27 | 2022-12-27 | Main girder hanging and paving integrated machine for combined girder cable-stayed bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117286804A (en) * | 2023-11-27 | 2023-12-26 | 中交一公局第六工程有限公司 | Integrated equipment for paving and erecting beam and girder erecting method |
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2022
- 2022-12-27 CN CN202223553921.XU patent/CN219218724U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117286804A (en) * | 2023-11-27 | 2023-12-26 | 中交一公局第六工程有限公司 | Integrated equipment for paving and erecting beam and girder erecting method |
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